Toshiba HFC series Installation Manual

* The preview only show first 10 pages of manuals. Please download to view the full documents.

Loading preview... Please wait.

Manuals information


Report / DMCA this file

Manuals Content

AIR TO WATER HEAT PUMP

Installation Manual Hydro Unit Model name:

HWS-P804XWHM3-E HWS-P804XWHT6-E HWS-P804XWHT9-E HWS-P1104XWHM3-E HWS-P1104XWHT6-E HWS-P1104XWHT9-E

English

Installation Manual

Hydro Unit

Please read this Installation Manual carefully before installing the Air to Water Heat Pump. • This Manual describes the installation method of the hydro unit. • For installation of the outdoor unit, follow the Installation Manual attached to the outdoor unit.

REFRIGERANT This Air to Water Heat Pump uses an HFC refrigerant (R410A) in order to prevent destruction of the ozone layer.

Contents 1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 Accessory parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 Preparations for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 Precautions for safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 Example of Hydro Unit installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Main components of Hydro Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 Hydro Unit installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 Start up and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 9 Test run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 11 Sensor temperature monitoring function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 12 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

1-EN

–1–

Installation Manual

Hydro Unit

1

General information

„ System combination Outdoor Unit Hydro Unit

HWS-P804HR-E

HWS-P1104HR-E

Backup heater

HWS-P804XWHM3-E



~, 3kW

HWS-P804XWHT6-E



3N ~, 6kW



3N~, 9kW

HWS-P804XWHT9-E HWS-P1104XWHM3-E



~, 3kW

HWS-P1104XWHT6-E



3N~, 6kW

HWS-P1104XWHT9-E



3N~, 9kW 220-230V model

„ General specifications Outdoor Unit Single Phase model Outdoor unit

HWS-P804HR-E

Power supply

220-230V ~ 50Hz

Type

INVERTER

Function

Heating & Cooling Capacity

Heating

Cooling

(kW)

8.0

11.2

Input

(kW)

1.68

2.30

COP

(W/W)

4.76

4.88

Capacity

(kW)

6.0

10.0

Input

(kW)

1.64

3.33

EER

(W/W)

3.66

Refrigerant Dimension

HWS-P1104HR-E

3.00 R410A

HxWxD

(mm)

1,340x900x320

–2–

2-EN

Installation Manual

Hydro Unit

Hydro Unit 80 class Hydro Unit

HWS-P804XWHM3-E

Back up heater capacity for back up heater

HWS-P804XWHT6-E

HWS-P804XWHT9-E

3.0

6.0

9.0

220-230V ~ 50Hz

380-400V 3N~ 50Hz

380-400V 3N~ 50Hz

Power supply

for hot water cylinder heater (option)

Leaving water temperature

Heating

(°C)

20-60

Cooling

(°C)

7-25

220-230V ~ 50Hz

112 class Hydro Unit

HWS-P1104XWHM3-E

HWS-P1104XWHT6-E

3.0

6.0

9.0

220-230V ~ 50Hz

380-400V 3N~ 50Hz

380-400V 3N~ 50Hz

Back up heater capacity for back up heater Power supply

for hot water cylinder heater (option)

Leaving water temperature

Heating

(°C)

20-60

Cooling

(°C)

7-25

HWS-P1104XWHT9-E

220-230V ~ 50Hz

Hot Water Cylinder (option) HWS-1501CSHM3-E HWS-1501CSHM3-UK

Hot water cylinder (option) Water volume

(liter)

150

Power supply

HWS-2101CSHM3-E HWS-2101CSHM3-UK

HWS-3001CSHM3-E HWS-3001CSHM3-UK

210

300

220-230V ~ 50Hz

Max water temperature

(°C)

75

Electric heater

(kW)

2.7

Height

(mm)

Diameter

(mm)

1,090

1,474

Material

2

2,040

550 Stainless steel

Accessory parts No.

Parts name

Quantity

1

Installation Manual (this document)

1

2

Owner’s Manual

1

Insulator for cooling

3

5

Insulator

3-EN

–3–

Installation Manual

Hydro Unit

3

Preparations for installation

„ Parts required to connect this product (Common items) Category

Water piping

Electrical system

Part

Specification

Strainer (water filter)

1 1/4" 30 to 40 meshes

Quantity 1

Drain cock

(for water charge)

1

Isolating ball valves

1 1/4" for service 1 1/4"

2

Earth leakage breaker for main power supply

30 mA

1

Earth leakage breaker for backup heater

30 mA

1

(Option) Earth leakage breaker for hot water cylinder heater

30 mA

1

„ Options required for each function Purpose

In the Hydro Unit Part name

Purchased part Model name

Part name

Prescribed specification

Heating





Radiator(s), Fan coil(s), Under floor heating

Heating &Cooling (all rooms)





Fan coil(s)

Heating & Cooling (partly heating only)





Motorized 2-way valve (for cooling)

Refer to “Control parts specifications” on page 20.

Motorized 3-way valve Earth leakage breaker

Refer to “Control parts specifications” on page 20.

Motorized mixing valve

Refer to “Control parts specifications” on page 20.

Circulator pump

Other power supply

Hot water cylinder 150 L Hot water supply

210 L 300 L

2-zone control



HWS-1501CSHM3-E HWS-1501CSHM3-UK HWS-2101CSHM3-E HWS-2101CSHM3-UK HWS-3001CSHM3-E HWS-3001CSHM3-UK



Buffer tank control board Interlocking with boiler Output kit (1)

TBC-PCIN3E

Boiler

Other power supply. Signal 12 V input function is required for boiler.

„ Optional parts No.

Part name

Model name

Application

Remarks

Boiler-linked output, Alarm output 1

External output board

TCB-PCIN3E

2

External input board

TCB-PCMO3E

Defrost signal output, compressor operation signal output Cooling/heating thermostat input Emergency stop signal input.

Up to two boards (according to applications) Up to two boards (according to applications)

Use specified products for the outdoor unit, Hydro Unit, and hot water cylinder. Do not use commercially available products. Use parts that conform to prescribed specifications for parts to be connected to the Hydro Unit. If unspecified products or parts are used, a malfunction, failure or fire may be caused.

–4–

4-EN

Installation Manual

Hydro Unit

4

Precautions for safety

„ General safety precautions Ensure that all Local, National and International regulations are satisfied. • Read the “Precautions for safety” carefully before installation. • The precautions described below include the important items regarding safety – Observe them without fail. • After the installation work has been completed, perform a test run to check for any problems. Follow the Owner’s Manual to explain how to use and maintain the unit to the customer. • Turn off the main power supply switch (or breaker) before unit maintenance. • Ask the customer to keep the Installation Manual along with the Owner’s Manual.

„ Refrigerant precautions • If a refrigerant leak is suspected contact the dealer who supplied the system, in the case of a recharge of refrigerant ask service personnel for details of the leak and confirmation of the repairs completed. The refrigerant used in the system is harmless. • Generally the refrigerant does not leak, however, if the refrigerant should leak into a room and a heater or stove burner in the room is lit, toxic gas may be generated. • Do not install the system in a location subject to a risk of exposure to a combustible gas. If a combustible gas leaks and stays around the unit a fire may occur. • Install the refrigerant pipe securely during installation and before operation. If the compressor is operated with no pipe work connected and valves open the compressor will suck air which would result in over pressurization of the system which may result in bursting or injury. Observe the same precautions for refrigerant recovery work (pump back procedure to outdoor unit) and do not disconnect pipe work until refrigerant is recovered and valves closed.

WARNING Installation precautions • Ask an authorized dealer or qualified installation professional to install/maintain the Air to Water Heat Pump System. Inappropriate installation may result in water leaks, electric shock or fire. • Electrical work must be performed by a qualified electrician in accordance with the installation manual. An inappropriate power supply capacity or installation may result in fire. • When completing any electrical works to the system ensure that all Local, National and International regulations are satisfied. Inappropriate grounding may result in electric shock. • Ensure all electrical cables, used for the ESTIA installation, comply with all Local and National regulations. Check all electrical terminations are secure and tight. • Earth wire connections. • Install an earth leakage breaker without fail. Incomplete grounding can cause electric shock. Do not earth wires to gas pipes, water pipes, lightning rods or telephone cable earth wires. • This unit must be connected to the main power supply using a circuit breaker or switch with a contact separation of at least 3 mm. • Be sure to turn off all main power supply switches or the circuit breaker before starting any electrical work. Ensure all power switches are off, failure to do so can cause electric shock. Use an exclusive power circuit for the Air to Water Heat Pump system using the rated voltage. • Ensure correct connection of interconnecting wire between Outdoor Unit and Hydro Unit. Incorrect connection of the interconnecting cable may result in the damage of electrical parts. • Ensure refrigeration system remains sealed to external gases and air. Should air or other gases contaminate the refrigeration circuit, high system pressures could result in burst pipes and injuries. • Do not modify or bypass any of safety guards or switches in this system. • After unpacking the outdoor unit, examine the unit carefully for any possible damage. • Do not install in any place that might increase the vibration of the unit. • To avoid personal injury (with sharp edges), be careful when handling parts. 5-EN

–5–

Installation Manual

Hydro Unit

• Perform installation work properly in accordance with the installation manual. Inappropriate installation may result in water leaks, electric shock or fire. • Tighten all flare nuts with a torque wrench in the specified manner. Excessive tightening of the flare nut may result in cracking of the pipe work or flare nut which may result in a refrigerant leakage. • Wear heavy duty gloves during installation work to avoid injury. • Install the outdoor unit securely in a location where the base can sustain the weight adequately. • In enclosed areas, if the refrigerant leaks during installation vacate and ventilate immediately. • After installation is complete ensure and confirm that refrigerant does not leak. If refrigerant leaks into a room and flows near a fire source noxious gas may be generated. • Do not block any drain hoses. Hoses may come off and electric shocks may occur. • Do not hit the manometer, because it is made of glass. It is breakable.

„ Notes on system design • The inlet water temperature to the Hydro Unit must be 60°C or less. Especially, be careful when there is an external heating source such as a boiler. When hot water over 60°C returns, it may result in a failure of the unit or water leakage. • The flow rate of the circulating water must meet the following range. 11 kW 18 L/minute or more 8 kW 13 L/minute or more If the flow rate becomes less than the minimum, the protective device is activated to stop the operation. To ensure the minimum flow rate of the water system, install a bypass valve on one water circuit. Please note this circuit must contain a minimum of 20 liters. If total water amount is not enough, the unit may not function fully due to protective operation. • Do not drive water by power other than the pump built in the Hydro Unit. • The back up heaters, in the hydro unit, are designed to assist the heat pump during periods of low ambient conditions. • Ensure the Hydro unit and the connecting water pipes are installed in a location that is not exposed to low ambient temperatures which could result in the water circuit freezing. • The system operation is designed around a closed water circuit. Do not use an open circuit design. • Circulating water must be 20 liters or more. • Please turn on the main power supply to up to 12 hours before the start of the operation, and don’t turn off the power all the time during the period of use.

–6–

6-EN

Installation Manual

Hydro Unit

5

Example of Hydro Unit installation

„ Example of installation for cooling and heating When both cooling and heating modes are required a 2-way valve must be installed to isolate the radiator or underfloor heating circuit.

▼ Fig. 5-01

Fan Coil Units (Cooling or Heating)

Isolating Ball Valves

Diverting 3-Way Valve for Sanitary Hot Water Cylinder

Strainer (40 mesh / 0.4 mm) Drain Cock for water Charge and Drain

Radiators (Heating Only) [2-Way Valve Control]

M 2-Way M Valve Use the 2way valve to isolate the heating circuit when in cooling mode.

TTW

Indirect Sanitary Hot Water Cylinder

2-Way M Valve

Alternative to Radiators Under-floor Heating (Heating Only) [2-Way Valve Control]

7-EN

–7–

Use it when do not operate cooling.

Installation Manual

Hydro Unit

„ Example of 2-zone temperature control and hot water supply system The following shows an example of the 2-zone temperature control. A buffer tank and a water pump are required for the 2-zone temperature control.

▼ Fig. 5-02 Hi-Pressure By-Pass Valve

Temperature Regulating Valve (Mechanical)

TRV

Temp. Regulating Valve (Mechanical)

TRV

Isolating Valves (Service)

Zone 1 Fan Coil Unit (Heating or Cooling)

Diverting 3-Way Valve for Sanitary Hot Water Cylinder

Strainer (40 mesh / 0.4 mm) Drain Cock for water Charge and Drain

M

M TTW M

Motorized 2-Way Valve is required if fan coil units are in cooling operation.

Mixing 3-Way Valve for Under Floor Heating External Pump for Under Floor Heating

TFI

Indirect Sanitary Hot Water Cylinder

Direct Buffer tank for Under Floor Heating

–8–

Zone 2 Under-floor Heating (2-Way Valve Control)

8-EN

Installation Manual

Hydro Unit

6

Main components of Hydro Unit

„ Exploded view and description for Hydro Unit ▼ Fig. 6-01

11 12 13 14 15

1

16

2 3 4 5 6 7

17 18

8 9 10

19 20

1 : Expansion vessel 2 : Temperature sensor (for Heat pump outlet -TWO) 3 : Pressure sensor 4 : Heat exchanger 5 : Flow switch (13 L/min (8 kW), 18 L/min (11 kW)) 6 : Temperature sensor (for refrigerant -TC) 7 : Temperature sensor (for water inlet -TWI) 8 : Drain nipple 9 : Water inlet connection 10 : Refrigerant liquid connection 11 : Air relief valve 12 : Pressure relief valve (0.3 MPa (3 bar)) 13 : Thermal protector (auto) 14 : Temperature sensor (for water outlet THO) 15 : Thermal protector (Single operation) 16 : Water pump 17 : Backup heater (3 kW, 3 kW x 2, 3 kW x 3) 18 : Manometer 19 : Water outlet connection 20 : Refrigerant gas connection

9-EN

–9–

Installation Manual

Hydro Unit

„ E-box layout ▼ Fig. 6-02

Main P.C. board MCC-1511 Trans former External output P.C. board MCC1217 (Option)

MG-SW (RY04) Relay (RY03)

Fuse Relay (F9 F10)(RY06)

MG-SW (RY05)

External output P.C. board MCC1217 (Option)

MG-SW (RY02)

Relay (RY01)

Fuse

Relay P.C. board MCC-1431

External input P.C. board MCC1214 (Option)

TB

– 10 –

07

TB07

10-EN

Installation Manual

Hydro Unit

7

Hydro Unit installation

„ Positioning Service space

WARNING • To protect yourself from injury, always use PPE (Personal Protective Equipment), that is, wear gloves. • Install the Hydro Unit by at least two persons. • Install the Hydro Unit in a place strong enough to withstand the following weights: Hydro Unit weight with no water 60 kg (P804) 65 kg (P1104) Hydro Unit weight with full water 80 kg (P804) 85 kg (P1104)

Secure a service space for the Hydro Unit. • Do not install the Hydro Unit in a place where heat stagnates.

▼ Fig. 7-01 200 mm

100 mm

500 mm

350 mm

CAUTION • Do not install the unit in a place where water freezes. • Do not install the Hydro Unit in a place where combustible gas may leak. • Do not install the Hydro Unit in a place exposed to rain or water. • Do not install the Hydro Unit near equipment which generates heat. • Do not install the Hydro Unit to a movable object. • Do not install the Hydro Unit in a place exposed to vibration. • The unit must be installed in accordance with national wiring regulation. • The Hydro Unit must not be installed in a high humidity condition area.

500 mm

Mounting Install M10 bolts at the positions shown below and secure them with nuts.

▼ Fig. 7-02 380 mm

„ Handling, unpacking, and checking the Hydro Unit

M10

960 mm

• The unit should be checked when it is delivered, and any damage reported immediately to the courier claims the department.

NOTE If customer worried about vibration of ESTIA, please insert vibration isolating material between the product and the wall, when installing the product.

11-EN

– 11 –

Installation Manual

Hydro Unit

The Hydro Unit can be installed directly without using the fixing angles. However, the back side of the Hydro Unit can be highly heated, therefore, the installing surface must be heatresistant.

„ Refrigerant piping WARNING • THIS SYSTEM ADOPTS HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY THE OZONE LAYER. • The characteristics of R410A refrigerant are: ease to absorb water, oxidizing membrane or oil, and its pressure is approximately 1.6 times higher that of R22. Accompanied with the new refrigerant the oil has also been changed. Therefore during installation work prevention of the invasion of water, dust, former refrigerant or oil is of a paramount importance. To prevent the charging of incorrect refrigerants into the system the service valve connection ports have also increased in size. • The use of R410A tools is required for correct installation of the system. • The use of the correct pipe sizes and wall thicknesses of copper pipe work is required for the correct installation of the system.

▼ Fig. 7-03

Remove the M5a screws to detach the fixing angles.

▼ Fig. 7-05

▼ Fig. 7-04

CAUTION

380 M10

860

• Ensure all refrigerant pipes are protected from the invasion of dust and water. • Ensure all pipe work connections are tightened to the required torque settings detailed in this section. • Perform an air tight using Oxygen Free Nitrogen (OFN) only. • Evacuate the air in the pipe work using a vacuum pump. • Check for refrigerant gas leaks at all connections throughout the pipe work.

M10

Secure the Hydro Unit with plain washers and nuts.

NOTE

Install the Hydro Unit so that its tilting angle falls within the range below.

▼ Fig. 7-07

▼ Fig. 7-06 ± 1°

± 1°

The Air to Water Heat Pump system uses R410A refrigerant. It is important that copper pipes used for refrigerant piping have the following wall thickness: • 0.8 mm for Ø6.4 mm, Ø9.5 mm and Ø12.7 mm • 1.0 mm for Ø15.9 mm

– 12 –

12-EN

Installation Manual

Hydro Unit

Refrigeration pipe

Tightening

The length and height of the refrigeration pipe must be within the following values. As long as the Hydro Unit is installed within these ranges, no additional refrigerant is required.

• Connect the refrigerant pipes, from the outdoor unit, to the Hydro Unit as shown below.

▼ Fig. 7-09 Gas line Ø 15.88

L

Outdoor unit

H

▼ Fig. 7-08

H: Max. ±30 m (above or below) L: Max. 30 m Min. 5 m

Liquid line Ø 9.52

• Align the flare connection on each pipe with the corresponding outlet connection on the Hydro Unit. Tighten the flare nuts, using fingers, to secure the pipes in place. • Tighten the flare nuts, using a torque wrench, to the tightening torques shown below:

Refrigerant pipe sizes Hydro Unit Model

Gas Side (mm)

Liquid Side (mm)

8 & 11 kW Hydro Unit

Ø 15.88

Ø 9.52

Flaring • Cut the refrigerant pipes to the correct length using a pipe cutter. Remove any burrs that may be on the pipes as these may cause refrigerant leaks or component failure in the refrigeration cycle. • Place the correct size flare nuts onto the pipes (use the flare nuts supplied with the Hydro Unit or use flare nuts designed specifically for R410A refrigerant) and then flare the pipes using the correct flaring tool.

Outer Ø of Copper Pipe (mm)

Tightening Torque (N/m)

9.5

33 to 42

15.9

63 to 77

• To prevent damage, to the refrigerant pipes, use two spanners to tighten the flare nut connections to the required torque.

„ Water pipe WARNING • Install water pipes according to the regulations of respective countries. • Install water pipes in a freeze-free place. • Make sure that water pipes have sufficient pressure resistance. The setting value of the pressure relief valve is 0.3 MPa. (3 bar)

CAUTION • Do not use zinc plated water pipes. When steel pipes are used, insulate both ends of the pipes.

13-EN

– 13 –

Installation Manual

Hydro Unit

▼ Fig. 7-11

• The water to be used must meet the water quality standard specified in EN directive 98/83 EC.

Water pipe Design the water pipe length within the QH characteristics of the pump (Refer to “Fig. 7-16” and “Fig. 7-17” on page 16). The height of the pipe must be 7 m or less.

Attention To avoid water leak, exchange the seal tapes to new one. Attention Water (used at test in factory before shipping) may be found in the caps.

▼ Fig.7-10

Hot water outlet connection 1 1/4"

H<7m

Water circuit • Install a strainer with 30 to 40 meshes (locally procured) at the water inlet of the Hydro Unit. • Install drain cocks (locally procured) for water charge and discharge at the lower part of the Hydro Unit. • Make the piping route a closed circuit. (An open water circuit may cause a failure.)

Water inlet connection 1 1/4"

▼ Fig. 7-12

Inlet Isolating Ball Valve

Strainer (30 to 40 meshes) Drain cock for water charge and discharge Local arrangement

– 14 –

14-EN

Installation Manual

Hydro Unit

Expression for expansion vessel selection

Water supplied to the hot water cylinder is branched by a motorized 3-way valve (locally procured). For the specifications of the motorized 3-way valve, refer to “Control parts specifications” on page 20. Connect the hot water cylinder to port A (open when energized) of the valve.

▼ Fig. 7-13 to hydro unit room heating or cooling Open when deenergized

B

to hot water cylinder AB A

Open when energized

Piping to 2-zone operation To perform 2-zone temperature control, circulate water by another pump (locally procured) through a motorized mixing valve (locally procured) and a buffer tank (locally procured). For the specifications of the motorized mixing valve, Refer to “Control parts specifications” on page 20.

▼ Fig. 7-14 Motorized mixing valve (locally procured) A

Water pump (locally procured)

from hydro unit

AB

B

Zone 2

Buffer tank (locally procured)

to hydro unit

V: :

Necessary total tank capacity ( ) Water expansion coefficient at each hot water temperature Vs: Total water amount in the system P1: System pressure at tank setting position (MPaabs.) = water supply pressure = 0.3 (MPaabs.) (recommended valve) P2: Maximum pressure used during operation at tank setting position (MPaabs.) = safety valve setting pressure = 0.4 (MPaabs.) * The absolute pressure value (abs.) is obtained by adding the atmospheric pressure (0.1 MPa (1 bar)) to the gauge pressure.

▼ Tank selection method Water temperature and expansion coefficient Hot water temperature (°C)

Expansion rate

Hot water temperature (°C)

Expansion rate

0

0.0002

50

0.0121

4

0.0000

55

0.0145

5

0.0000

60

0.0171

10

0.0003

65

0.0198

15

0.0008

70

0.0229

20

0.0017

75

0.0258

25

0.0029

80

0.0292

30

0.0043

85

0.0324

35

0.0050

90

0.0361

40

0.0078

45

0.0100

▼ Fig. 7-15 V: Necessary total tank capacity( )

Piping to hot water cylinder (option)

Checking water volume and initial pressure of expansion vessel The expansion vessel of the Hydro Unit has a capacity of 12 liters. The initial pressure of the expansion vessel is 0.15 MPa (1.5 bar). The pressure of the safety valve is 0.3 MPa (3 bar). Verify whether the capacity of the expansion vessel is sufficient using the following expression. If the volume is insufficient, add the capacity locally.

18 16 14 12 10 8 6 4 2 0 0

50

100

150

200

250

300

Vs: Total water amount in the system( )

*In case the maximum hot water temperature is 60ºC

Install an external expansion vessel when the capacity of the expansion vessel is insufficient.

15-EN

– 15 –

Installation Manual

Hydro Unit

Pump operation/configuration ▼ Fig. 7-16

Hydraulic heat exchanger (8 kW) QH characteristics Minimum flow rate

10 9

Hydro unit QHCharacteristics (220/230 V)

8

Out of range

Head [m]

7 6

Pump duty 100 %

5 4 3 2 Pump duty 60 %

1 0

0

Pump duty 80 %

5

10

15 20 Flow rate [L/min]

25

30

35

▼ Fig. 7-17 Hydraulic heat exchanger (11 kW) QH characteristics Minimum flow rate

10 Hydro unit QHCharacteristics (220/230 V)

9 8 Out of range

Head [m]

7

Pump duty 100 %

6 5 4 Pump duty 80 %

3 Pump duty 60 %

2 1 0

0

10

20

30

40

50

Flow rate [L/min]

– 16 –

16-EN

Installation Manual

Hydro Unit

„ Electrical installation

Water charging Charge water until the pressure gauge shows recommended valve 0.2 MPa (2 bar). Hydraulic pressure may drop when the trial run begins. In that case, add water. Air may enter if the charged hydraulic pressure is low. Loosen the purge valve cap by two turns to release air.

▼ Fig. 7-18 Loosen 2 turns for proper venting

WARNING • Ensure electrical circuits are isolated before commencing the electrical installation. • The electrical installation must be completed by a qualified electrician. • The electrical installation must comply to all Local, National and International electrical installation regulations. • This product must be earthed in accordance with Local, National and International electrical installation regulations.

CAUTION • The Hydro Unit must be connected to a dedicated power supply for the back up heater circuit. • The electrical supply must be protected by a suitably sized over current protection device (fuse, MCB etc) and an earth leakage protection device. • The Hydro Unit must be connected to the mains power supply using a isolating switch which disconnects all poles and has a contact separation of at least 3 mm. • The cord clamps, attached to the Hydro Unit, must be used to secure the electrical cables. • Wrong connection of electrical cables may result in electrical component failure or fire. • Ensure the electrical cables are sized in accordance with the installation instructions.

Loosen the air vent screw of the pump, pull out air in the pump, and tighten again. Loosen the cap of the pressure relief valve to release air. Water may come out of the pressure relief valve. Release the air completely from the water circuit. Failure to do so may disable correct operation.

Water quality The water used must satisfy EN directive 98/83 EC.

Piping insulation It is recommended that insulation treatment be applied to all pipes. To perform optional cooling operation, apply insulation treatment of 20 t or more to all pipes.

17-EN

– 17 –

Installation Manual

Hydro Unit

Control line ▼ Fig. 7-19 Mixing-Valve type 2 for 2 zone control

Mixing-Valve type 1 for 2 zone control

TB04

Max 12 m 230 V 1 A 0.75 mm² or more

Max 5 m shielded wire 0.75 mm² or more

A B

1 2 TB05

3 4

TB06

Booster heater (local)

Temp sensor in hot water cylinder

1 2 3 4

2Way-Valve for cooling stop

Max 12 m 230 V 100 mA 0.75 mm² or more

CW

1 2 3 4

CCW

Pump (local)

N

Max 12 m 230 V 100 mA 0.75 mm² or more

C D

TB07

Max 5 m shielded wire 0.75 mm² or more

1 2

5 6

Max 12 m 230 V 1 A 0.75 mm² or more

A B

7 8 9

CN208 OPTION PJ20

Temp sensor for 2 zone control

Max 50 m shielded wire 0.50 mm² or more

CN209 OPTION PJ20

1 2 3 4 1 2 3 4

3Way-Valve for hot water cylinder

2nd remote controller Max 12 m non voltage 0.75 mm² or more

Alert output (local)

Boiler operation (local)

Defrost output (local)

Compressor operation output (local)

▼ Fig. 7-20

1

5

3

2

5

5

WPM

5

4

6

5

5

5

BH

2WV

TB 05

7

5

8

59

5

1

2

4

4

3WV

3

4

4

4

MIXV

TB 04

TB02

TB03 1

A

6

B

6

TTW

C

6

D

6

TF1

TB 06

Don't apply 11 220-240V or breakdown will occur.

2

3

2

1

1

3

L1

1

3

2

L

3

N

L2

L3

L

N

L1

L2

L3

N

N

HOT WATER CYLINDER

TB 01

TB 03

TB 02

TB01

to Outdoor unit

Sensor connection

Outdoor unit connection

Hot water cylinder

Input power 220-230 V ~ 50 Hz

Hot water cylinder power supply

– 18 –

Input power 220-230 V ~ 50 Hz

Input power 380-400 V 3N ~ 50 Hz

Backup heater power supply

18-EN

Installation Manual

Hydro Unit

Electrical supply/cable specifications ▼ Wiring specifications Description Outdoor unit power

Hydro inlet heater power

Power input

Power input for backup heater

Model name HWS-

POWER SUPPLY

Maximum current

Installation fuse rating

Power wire

P1104HR-E

220-230 V ~ 50 Hz

22.8 A

25 A

2.5 mm² or more

P804HR-E

220-230 V ~ 50 Hz

22.8 A

25 A

2.5 mm² or more

P1104XWHM3-E

220-230V ~ 50Hz

13 A

16 A

1.5 mm² or more

,

380-400V 3N~ P1104XWHT6-E 50Hz

13 A(13 A x 2P) 16 A

1.5 mm² or more

380-400V 3N~ P1104XWHT9-E 50Hz

13 A(13 A x 3P) 16 A

1.5 mm² or more

, ,

Connection destination

,

TB02

P804XWHM3-E

220-230V ~ 50Hz

13 A

16 A

1.5 mm² or more

,

P804XWHT6-E

380-400V 3N~ 50Hz

13 A(13 A x 2P) 16 A

1.5 mm² or more

P804XWHT9-E

380-400V 3N~ 50Hz

13 A(13 A x 3P) 16 A

1.5 mm² or more

, ,

220-230V ~ 50Hz

12 A

1.5 mm² or more

,

Power input for cylinder heater

,

16 A

Outdoor-Hydro unit

Connection

1.5 mm² or more

,

Hydro -Cylinder

Connection

1.5 mm² or more

,

,

TB03 , TB03

▼ Wiring specifications (control line)

19-EN

Description

Line spec

Maximum current

Maximum length

Connection destination

3-way valve control

2 line or 3 line

100 mA

12 m

0.75 mm² or more

, , (TB05)

2-way valve control

2 line

100 mA

12 m

0.75 mm² or more

,

(TB05)

,

,

or

Mixing valve control

3 line

100 mA

12 m

0.75 mm² or more

2-zone thermo sensor

2 line

100 mA

5m

0.75 mm² or more

,

(TB06)

Cylinder thermo sensor

2+GND(shielded wire)

100 mA

5m

0.75 mm² or more

,

(TB06)

Second remote controller

2 line

50 mA

50 m

0.5 mm² or more

,

(TB07)

– 19 –

, , (TB04)

Installation Manual

Hydro Unit

▼ Control parts specifications Power

Maximum current

Type

Motorized 3-way valve (for hot water)

AC 230 V 100 mA

Default: 2-wire spring return valve or 3 wire SPST valve Note: 3 wire SPDT valve can be used by changing DIP switch 13_1.

Motorized 2-way valve (for cooling)

AC 230 V 100 mA

spring return type (normally open)

AC 230 V 100 mA

Default: Drive time = 60sec to 90° Note: 3 wire SPST or SPDT valves, with drive times between 30 and 240 seconds, can be used. Valve drive time can be changed using function code 0C

Motorized mixing valve (for 2-zone)

▼ Output line specifications Description

Output

Maximum current

Max voltage

Maximum length

External pump No.1

AC230V

1A



12 m

External boost heater

AC230V

1A



12 m

Output as required when outdoor air temperature is -20°C or less

0.5 A Non-voltage contacts 1A

AC230 V

12 m

DC24 V

12 m

Output as required when outdoor air temperature is -10°C or less. The outdoor air temperature, when the boiler output is enabled, can be changed using function code 23.

ALARM Output

Non-voltage 0.5 A contacts 1A

AC230 V

12 m

DC24 V

12 m

Compressor operation output

Non-voltage 0.5 A contacts 1A

AC230 V

12 m

DC24 V

12 m

Defrost Output

Non-voltage 0.5 A contacts 1A

AC230 V

12 m

DC24 V

12 m

Boiler control

▼ Input line specifications Description

Input

Maximum length

Emergency stop control

Non-voltage

12 m

Cooling thermostat input

Non-voltage

12 m

Heating thermostat input

Non-voltage

12 m

CAUTION Earthing arrangements The Hydro Unit and related equipment must be earthed in accordance with your local and national electrical regulations. It is essential that the equipment is earthed to prevent the electric shock and damage to the equipment.

– 20 –

20-EN

Installation Manual

Hydro Unit

• Remove the front cover and the electrical box cover from the Hydro Unit. • The Hydro Unit power cable must be sized in accordance with refer to “Electrical supply/cable specifications”. • Connect the Hydro Unit power cable to Terminal 02 as shown below.

Outdoor unit to hydro unit electrical connection ▼ Fig. 7-22

Input power 220230V~ 50Hz

▼ Fig. 7-21 Backup heater 220-230V ~ type (3 kW type)

Input power 220-230V 50Hz Leakage breaker 30mA

Input power 220-230V 3N~ 50Hz Leakage breaker 30mA

L1 L2 L3 N

TB02

TB02

• Ensure the Hydro Unit power cable is secured using the cable clamp fitted in the electrical box. • Ensure the Hydro Unit power cable connection terminals are tight.

21-EN

L N

1 2 3 Outdoor unit

Backup heater 380-400V 3N~ type (6,9 kW type)

L N

Leakage breaker 30mA

1 2 3

TB01

Electrical connection to hydro unit

Hydro unit

• Ensure electrical circuits are isolated before commencing work. • The Outdoor Unit to Hydro Unit interconnecting cable must be sized in accordance with refer to “Electrical supply/cable specifications”. • Connect the Outdoor Unit to Hydro Unit interconnecting cable as shown in the diagram above. • Ensure the Outdoor Unit to Hydro Unit interconnecting cable is secured using the cable clamp fitted in the electrical box. • Ensure the Outdoor Unit to Hydro Unit interconnecting cable connection terminals are tight.

– 21 –

Installation Manual

Hydro Unit

Electrical connection for external booster heater

Electrical connection for external additional pumps

CAUTION • The maximum current available from the booster heater output is 1 A. Do not connect the booster heater directly to Terminal Block 05 on the Hydro Unit. A separate contactor, supplied locally, must be used to supply the booster heater. • The booster heater can be installed only for room heating and cannot be used for hot water supply. • Install the booster heater downstream of the 3-way valve on the indoor unit side. The booster heater is an external heater, supplied locally, used to assist the Hydro Unit during low ambient conditions. • The AC230 V 1 A output from the Hydro Unit must only be used to energize an external contactor. (Supplied locally) • The output from the Hydro Unit is only enabled when the outdoor air temperature is less than -20°C. • Ensure the external booster heater is installed and set up in accordance with all Local, National and International regulations.

• The Hydro Unit has the facility to connect an additional circulating pump, if required, into the heating or cooling system. • There is an output available from the Hydro Unit. AC230 V 1 A (maximum) is available from each output. The output for each additional pump is synchronized with the operation of the main circulating pump inside the Hydro Unit. • Connect the additional pumps as shown in the diagram below. • Connect external pump 1 to terminals 1 & 2 on Terminal Block 05. • Install external pumps so that their motive power does not affect the internal pump.

▼ Fig. 7-24

• Connect the external booster heater to the Hydro Unit in accordance with the diagram shown below. • Connect the coil, of the field supplied contactor, to terminals 5 & 6 on Terminal Block 05. The contactor will energize in the event of low ambient conditions. • A separate dedicated electrical supply must be used for the external booster heater. This must be connected through the contacts on the field supplied contactor.

Pump 01

Terminal Block 05

1

2

3

4

5

6

7

8

9

▼ Fig. 7-23

Booster Heater Terminal Block 05 1

2

3

4

5

6

7

8

9

– 22 –

22-EN

Installation Manual

Hydro Unit

▼ Fig. 7-26

3-way valve (diverter) connection

Type 2: SPST

Required Valve Specification: Electrical Specification: 230 V; 50 Hz; <100 mA Valve Diameters: Port A, Port B: Ø 1 1/4" Return Mechanism: 3 types of 3-way valve (diverter) can be used. Set the 3-way valve in use with the DIP switch SW131 on the Hydro Unit board.

port “A” to Hot water cylinder

Hydro Unit port “A” close

port “AB” to Hydro unit

open

7

SW13-1

8 9

Type 1

2-wire spring return

OFF

Type 2

3-wire SPST

OFF

Type 3

3-wire SPDT

ON port “B” to Room heating or cooling

NOTE Continuous operation of the valve motor at the fully open position is not recommended.

▼ Fig. 7-27 Type 3: SPDT

• The 3-way diverter valve is used to select either domestic hot water or space heating. • Connect the 3-way diverter valve to terminals 7, 8 and 9 on Terminal Block 05. • Connect the 3-way diverter valve in accordance with the diagram below:

port “A” to Hot water cylinder

port “AB” to Hydro unit

Hydro Unit port “A” close open

▼ Fig. 7-25 Type 1: SPRING RETURN Hydro Unit port “B” to Room heating or cooling

TB 05 port “AB” to Hydro unit

7 port “A” open

TB 05

7 8 9

port “A” to Hot water cylinder

8 9

port “B” to Room heating or cooling

23-EN

TB 05

– 23 –

Installation Manual

Hydro Unit

3-way mixing valve connection

Hot water cylinder connection (optional)

Required Actuator Specification

• Please refer to “Electrical supply/cable specifications” for fuse/cable size and for connection details.

Electrical Specification:230 V; 50 Hz; <100 mA The 3-way mixing valve is used to achieve the temperature differential needed in a 2-zone heating system. • Connect the 3-way mixing valve to terminals 2, 3 and 4 on Terminal Block 04 (for Type 1 mixing valve) or on terminals 1, 2 and 3 on Terminal Block 04 (for Type 2 mixing valve). • Connect the 3-way mixing valve in accordance with the diagrams below:

▼ Fig. 7-28 Type 1: SPDT port “A” to Zone 2 Heating

port “AB” to Hydro unit

Hydro Unit TB 04 open

1 2 3

port “A” close

4

Electrical Connection (Hot Water Cylinder Electric Heater) • The electric heater, incorporated in the hot water cylinder, requires a separate supply to Hydro Unit. • Connect the hot water cylinder heater electrical supply in accordance with shown below: Live conductor: Terminal L on Terminal Block 03 Neutral conductor: Terminal N on Terminal Block 03 Earth Conductor: Earth terminal on Terminal Block 03 • Connect the hot water cylinder heater to the Hydro Unit as shown below: Live conductor to hot water cylinder: Terminal 1 on Terminal Block 03 Neutral conductor to hot water cylinder: Terminal 2 on Terminal Block 03 Earth conductor to hot water cylinder: Earth terminal on Terminal Block 03

▼ Fig. 7-30

port “B” BLANK OFF

2 1

▼ Fig. 7-29 Type 2: SPST

1

Hot water cylinder

port “A” to Zone 2 Heating

port “AB” to Hydro unit

INPUT Power 220-230 V ~ 50 Hz

Earth leakage breaker

port “A” close open

2

L

N

Terminal block 03

Hydro Unit TB 04

1 2 3 4

port “B” BLANK OFF

– 24 –

24-EN

Installation Manual

Hydro Unit

Additional hydro unit outputs

Electrical Connection (Hot Water Cylinder temperature Sensor) • Connect the hot water cylinder temperature sensor as shown below to terminals A & B on Terminal Block 06 in the Hydro Unit. • Please ensure that the interconnecting cable, between the Hydro Unit and the hot water cylinder, is connected to earth at both ends of the cable using the shield wire.

▼ Fig. 7-31

Alarm and Boiler Outputs Alarm Output: L1: Alarm output • Output enabled when the system is in alarm/fault condition. • Volt free contact - specification shown below: AC230 V; 0.5 A (maximum) DC24 V; 1 A (maximum) • Connection details: Terminals 1 and 2 (OPERATION) on MCC-1217 TB (Refer to “Fig. 732”) Boiler Control Output: L2: Boiler drive permission output • Output enabled when outdoor ambient temperature <-10°C • Volt free contact - specification shown below: AC230 V; 0.5 A (maximum) DC24 V; 1 A (maximum) • Connection details: Terminals 3 and 4 (EMG) on MCC-1217 TB (Refer to “Fig. 7-32”)

▼ Fig. 7-32 Connection Cable Power Supply

TCB-PCIN3E

Display Relay K1 CN208

Hydro unit

PJ20

4

EMG

3

Hydro unit main control board

Boiler control output

Power Supply

OPERATION Display Relay K2

L2

2 1

L1

Alarm output

Locally procured

Defrost and Compressor operation Outputs Defrost output • Display relay is ON when the system defrost. • Volt free contact AC230 V; 0.5 A (maximum) DC24 V; 1 A (maximum) • Connection details: Terminals 1 and 2 (OPERATION) on MCC-1217 TB (Refer to “Fig. 733”)

25-EN

– 25 –

Installation Manual

Hydro Unit

Optional inputs to hydro unit

Compressor operation output • Display relay is ON with outdoor unit compressor operation. • Volt free contact AC230 V; 0.5 A (maximum) DC24 V; 1 A (maximum) • Connection details: Terminals 3 and 4 (EMG) on MCC-1217 TB (Refer to “Fig. 7-33”)

Room Thermostat Input: 2–3: Room thermostat input for cooling mode 1–3: Room thermostat input for heating mode • Output enabled when either heating or cooling mode selected on room thermostat. (locally supplied) • Volt free contacts • Connection details: Cooling Connection: Terminals 3 (COM) and 2 (COOL) on MCC-1214TB (Refer to “Fig. 7-34”) Heating Connection: Terminals 3 (COM) and 1 (HEAT) on MCC-1214TB (Refer to “Fig. 7-34”)

▼ Fig. 7-33 Connection Cable Power Supply

TCB-PCIN3E

Display Relay K1 CN209

4

EMG

PJ20

OPERATION Display Relay K2 Hydro unit main control board

3

2 1

L2

Power Supply L1

Compressor operation output

▼ Fig. 7-34 *1

Defrost output

COM

CN211

1 - 2 = Defrost output 3 - 4 = Compressor operation output

3

PJ17 COOL

2

HEAT

1

Locally procured

Hot

Cool

Connection Cable

*1:Available to change the output signal by function code 67. Default (FC67 = 0)

Locally procured Thermostat

TCB-PCMO3E

Thermostat operation

Setting value (FC67 = 1)

Cooling

1 - 2 = Alarm output 3 - 4 = During operation

Heating

on

off

on

off

2-3

open

close





1-3





close

open

CAUTION • Be sure to prepare a non-voltage contact for each terminal. • Display Relay capacity of “EMG” and “OPERATION”. Below AC230 V 0.5 A (COS Ø = 100 %) When connecting loads such as relay coil to “L1, L2” load, insert noise surge absorber. Below DC24 V 1 A (Non-inductive load) When connecting load such as relay coil to “L1, L2” load, insert the bypass circuit.

CAUTION • Be sure to prepare a non-voltage continuous contact for each terminal. • Supplementary Insulation must be added to user touchable part of switches.

– 26 –

26-EN

Installation Manual

Hydro Unit

Emergency Shutdown input S2: Emergency stop input, Tempo* control input This function can be switched over with FC21 and FC61. • Non-voltage contacts • Connection details: Emergency stop, Tempo* control ON: Terminals 3 (COM) and 1 (HEAT) on MCC-1214TB (Refer to “Fig. 7-35”) * a price contract provided by French electric power company EDF Hot water tank thermostat input S1: Local hot water tank thermostat input This function is used with DIP switch 2_3 is “ON”, when the customer use the local hot water tank. * Close: Not reached setting temperature. * Open: Reached setting temperature. (Refer to “Fig. 7-35”) Control of force stop and restart S1: Hot water supply control S2: Heating control • This function is valid only when DIP switch 2_3 is “OFF”, FC61 is set to “3” and FCB6 is set to “1”. • Operation by external input can be switched over with FC52.

▼ Fig. 7-35 Locally procured

COM

CN210

Insulation resistance test This test must be completed using a 500 V D.C. insulation resistance tester. Insulation resistance tests should be completed between each live terminal and earth.

„ Second remote controller Installation place • Install the remote controller 1 m - 1.5 m above floor level (average room temperature area). • Do not install the remote controller in a place exposed to direct sunlight or outside air (such as a window, etc.). • Do not install the remote controller where ventilation is poor. • Do not install the remote controller in a freezing or refrigerated area - the remote controller is not water or splash-proof. • Install the remote controller in a vertical position.

Remote controller installation dimension

3

PJ17

On completion of the electrical installation a resistance test should be completed on the earth conductor to ensure continuity between all pieces of equipment on the earth conductor.

S1

Be sure to follow the installation dimension as shown in the figure 1 when you install the remote controller on the wall.

S2

2 1

(mm) 120

Connection Cable

62

84 120

CAUTION • Be sure to prepare a non-voltage continuous contact for each terminal. • Supplementary Insulation must be added to user touchable part of switches.

Electrical safety checks The electrical safety checks must be completed before turning on the electrical supplies to the Air to Water heat pump system. The electrical safety checks should be completed by a qualified electrician. All results measured should comply with your local/national electrical installation regulations.

27-EN

18

TCB-PCMO3E

Earth continuity test

– 27 –

Installation Manual

Hydro Unit

Remote controller installation

Remote controller wiring Connection diagram

NOTE

* Use 0.5 mm2 wire * Can not use the closed end wire joint.

• The remote controller wire should not be bundled with other wires (mains, etc.), or installed with other wires in the same conduit, as malfunction may result. • Install the remote controller away from sources of electrical interference and electromagnetic fields. • If electrical interference is unavoidable, countermeasures such as appropriate filtering should be employed.

Wood screws Remote controller A

A

B

B

Terminal block (TB07) for remote controller wiring in Hydro unit

Remote controller wiring (Locally procured)

* Terminals A and B are nonpolar.

Wiring slot

Second remote controller installation requirements

Wood screws

Remote controller

Remote controller (inside, rear)

Lower case (Rear case)

Cover

1. For removal of the remote controller’s lower case (rear case), insert the tip of a straight blade screwdriver, or the like, into the two openings at the bottom of the remote controller to open the lower case. 2. Fix the remote controller’s rear case by wood screws (2 pcs.). Do not over tighten, as it may damage the rear case. 3. Connect the wires from the Hydro unit to the remote controller terminal block. (Refer to “How to wire the remote controller”.) Connect the wires of the remote controller following the terminal numbering convention of the Hydro unit to prevent miss wiring. (Do not apply AC 208-230V mains voltage to the remote controller as it will be damaged.)

DIP switch

Header remote controller/Hot water temperature

DIP switch

DIP switch

DIP switch

Header remote controller/ Room temperature

Second remote controller/Hot water temperature

Second remote controller/ Room temperature

Installation For a dual remote controller system, install the remote controllers in the following way. 1. Set one of remote controllers as the header remote controller. (Remote controller of hydro unit is preset as Header (DIP SW1 = OFF).) 2. Set the DIP switch on all other remote controller P.C. boards to Second. (Optional remote controller is preset as Second (DIP SW1 = ON).)

– 28 –

28-EN

Installation Manual

Hydro Unit

• Set DIP SW2 to ON (Room temperature) on the remote controller which you will control the room temperature with. DIP SW2 of optional remote controller is preset to ON (Room temperature). Either one of header or second remote controller must be set as room temperature control. • To control room temperature instead of water temperature with this remote controller, set function code “40” of hydro unit to “1”.

8

Start up and configuration

Set the DIP switches and function codes.

„ Setting DIP switches on the board in the Hydro Unit • Detach the front cover and the electrical control box cover of the Hydro Unit. • Set the DIP switches on the main board.

▼ Fig. 8-01

SW No.

DIP No. 1

02

ON

OFF

1

SW11

SW12

ON

2

3

4

1

SW13

ON

2

3

4

Description

1

Default

Boiler install location OFF = Heating side after 3 way valve ON = Before 3 way valve

ON

2

3

4

1

2

After Commissioning

3

4

Change 1 Change 2 Change 3

OFF

2

Not Used

3

Used to when an external cylinder thermostat is connected OFF = No external cylinder thermostat; ON = External tank thermostat connected

OFF

4

Used to when an external room thermostat is connected OFF = No external room thermostat; ON = External room thermostat connected

OFF

1

P1 Pump operation for hot water OFF = synchronised with heat pump ON = Normally run

OFF

2

P1 Pump operation for heating OFF = Normally run ON = Stopped at the outside temperature over 20°C

OFF

3

Synchronisation of Pump P2. OFF = P1 synchronised with pump P1 ON = P2 continuous operation (pump off when remote controller switched off)

OFF

4

Pump P1 power of regular, When long-term thermooff. OFF = None operation ON = regular power

OFF

10

29-EN

SW10 ON



– 29 –









Installation Manual

Hydro Unit

SW No.

11

12

13

DIP No.

Description

Default

1

Used to activate Hydro Unit back up heaters. OFF = Back up heaters activated; ON = back up heaters de-activated

OFF

2

Used to activate hot water cylinder electrical heater. OFF = hot water cylinder heater activated; ON = hot water cylinder heater de-activated

OFF

3

Used to activate external booster heater output. OFF = external booster heater output activated; ON = external booster heater output de-activated

OFF

4

Not Used

1

Used when a hot water cylinder is connected to system. OFF = hot water cylinder connected; ON = hot water cylinder not connected

OFF

2

Used to activate Zone 1 Operation. OFF = Zone 1 activated; ON = Zone 1 de-activated

OFF

3

Used to activate Zone 2 Operation. OFF = Zone 2 de-activated; ON = Zone activated

OFF

4

Not Used

1

Used to determine type of 3 way diverting valve used on system. OFF = 2 wire/spring return or SPST type valve; ON = SPDT type valve

OFF

2

Used to activate external boiler output. OFF = external boiler output de-activated; ON = external boiler output activated

OFF

3

Used to activate system auto restart after power failure. OFF = auto restart activated; ON = auto restart de-activated

OFF

4

Not Used

ON





After Commissioning

Change 1 Change 2 Change 3

























„ Setting DIP switches on the board in second remote controller (option) • Detach the front cover of the Remote controller. • Set the DIP switches on the main board DIP No.

Description

Default

After Commissioning

Change 1 Change 2 Change 3

1

Used to when a second remote controller is connected OFF=Header remote controller; ON=Second remote controller

OFF









2

Used to determine control target when use second remote controller OFF=water temperature; ON=room temperature

OFF









3

Not Used











4

Not Used











– 30 –

30-EN

Installation Manual

Hydro Unit

2

„ Setting function codes for Hydro Unit and remote controller

3

Set function codes for various operation modes with the remote controller. There are two types of setting. 1) Hydro Unit function code setting 2) Remote controller function code setting

4 5

Setting remote controller mode

6



1

2 3 4 5 6

Press the TEST + SET + SELECT buttons for four seconds or more to enter the remote controller function code setting mode.

Set the function code (CODE No.) with the TEMP. buttons. (CODE No.: 01 to 91) Set data (DATA) with the TIME buttons. Press the SET settings.

button to determine the

The CL button is enabled only before the SET button is pressed and the function code is changed. Press the TEST settings.

button to end the



1

31-EN

Press the TEST + CL + TEMP. buttons for four seconds or more to enter the remote controller function code setting mode.

– 31 –

Set the function code (CODE No.) with the TEMP. buttons. (CODE No.: 01 to 13) Set data (DATA) with the TIME buttons. Press the SET settings.

button to determine the

The CL button is enabled only before the SET button is pressed and the function code is changed. Press the TEST settings.

button to end the

Installation Manual

Hydro Unit

Main setting items

• However, A > B > C > D > E.

(1) Setting Temperature Range (function code 18 to 1F) • Set the temperature range for heating (zone 1, zone 2), cooling, and hot water. • The upper-limit and lower-limit temperatures of each mode can be set. (2) Setting Heat Pump Operation Conditions for Hot Water Supply (function code 20 and 21) • Set the heat pump start water temperature and heat pump stop water temperature. • The heat pump starts working when the water temperature lowers below the set start water temperature. It is recommended that the default value be used.

▼ Fig. 8-02 Default setting

(FC2D) (35) B (FC2E) (30) C (FC2F) (25) D (FC30) (20) E

-25

(3) Compensating Hot Water Temperature (function code 24 and 25) • Compensate the target temperature from the remote controller set temperature when the hot water temperature lowers below the set outside air temperature.

(6) Setting Priority Mode Temperature • Set the outside air temperature that changes the preferred operation mode. • Hot Water - Heating Switching Temperature Heating operation takes precedence when the temperature lowers the set temperature. • Boiler HP Switching Temperature When the temperature lowers the set temperature the external boiler output is made. (7) Setting Heating Auto Mode Temperature (function code 27 to 31, A1 to A5) • Compensate the target temperature when Auto is set for temperature setting on the remote controller. • The outside air temperature (T0, T1 and T3) can be set individually. • The target temperature can be set to a value from 20 to 60°C.

T0 (-20) (FCA1)

T1 (-10) (FC29)

T2 0

T3 (10) (FC2B)

20

Outdoor Temperature (°C)

• The entire curve can be adjusted plus and minus 5°C by function code 27. You can choose either a percentage or a fixed value as the setting method of zone 2 FCA2 = “0” : percentage (FC31) FCA2 = “1” : fixed value (FCA3), (FCA4), (FCA5) However, zone 1 ≥ zone 2

(4) Setting Hot Water Boost (function code 08 and 09) • Set the control time and target temperature when the HOT WATER BOOST button on the remote controller is pressed. (5) Setting Anti-Bacteria • Set the control for the hot water cylinder when ANTI BACTERIA is set with the remote controller. • Set the target temperature, control period, start time (24-hour notation), and target temperature retention period. • Make this control setting according to regulations and rules of respective countries.

Auto curve shift adjust ± 5°C (FC27)

(FC2C) (40) A

Auto curve shift adjust ± 5°C (FC27)

(FCA3) (40) A’ (FCA4) (35) B’

(FCA5) (20) E’

-25

T0 (-20) (FCA1)

T1 (-10) (FC29)

20

Outdoor Temperature (°C)

(8) Setting Frost Protection Temperature (function code 3A to 3B) • Set the function when the FROST PROTECTION button on the remote controller is pressed. • Set enabling/disabling of this function and the target water temperature. • If disabling is set, the frost protection operation is not performed even when the FROST PROTECTION button is pressed. (9) Setting Frequency of Output to Internal Heater (function code 33 to 34) • The increase/decrease time is used to set the response time.

– 32 –

32-EN

Installation Manual

Hydro Unit

(10)Setting Night Setback (function code 26. remote controller function code 0E to 0F) • Set the function when the NIGHT button on the remote controller is pressed. • Set enabling/disabling of this function, reduction temperature, start time, and end time. • If disabling is set, the night setback operation is not performed even when the NIGHT button is pressed.

(22)Selection of mode of operation by external input • Select the logic of an external input signal (option)

(12)Hydro 2-Way Diverting valve operation. control • When using both cooling and heating operations and there is an indoor unit only for heating (such as floor heating), install the 2-way valve and set this function code.

(26)Synchronization control at low outside temperature

(23)Hydro Unit Capacity setting (24)Second Remote controller target temperature setting (25)Room temperature sensor setting

(27)P1 pump speed control

(13)Setting 3way Valve Operation (function code 54) • This setting is not necessary for normal installation. Make this setting to invert the logic circuit in case ports A and B of the 3-way valve are wrongly attached and it cannot be rectified on site. (14)Mixing valve operation setting • Set the time period from full close to full open of the 2-zone control mixing valve. Set a value that is 1/10 of the actual time. And. setting the interval control time. (minutes) (15)Setting Heating/Hot Water Switching when Boiler Is Used (function code 3E) • When boiler is used, make this setting to operate the Hydro Unit by the instruction from the boiler. (16)Setting Heat Pump Operating Time for Hot Water Supply Operation • Set the time period from the start of heat pump run to the start of heater energization at the beginning of hot water supply operation. If a long period is set, it takes long time for heating water. (17)Setting Cooling ON/OFF • Set this function when performing cooling operation. (18)Remote controller time indication • 24-hour or 12-hour notation is selected for the timer. (19)Setting Nighttime Quiet Operation • Issue an instruction for low-noise mode operation to the outdoor unit. Enabling/disabling of this function, start time, and end time can be set. (20)Setting Alarm Tone • The remote controller alarm tone can be set. (21)Second Remote controller and room temperature thermostat • Set the initial temperature setting.

33-EN

– 33 –

Installation Manual

Hydro Unit

Function code settings Location & FC Number

1

2

3

4

5

6

7

Setting Temperature Range

Hot Water Operation Hot Water Temperature Compensation Hot Water Boost

Anti Bacteria

Priority Mode

Heating Auto Curve Settings

FC Description

Hydro

RC

Range

Default

Heating Upper Limit - Zone 1

1A



37~60°C

60°C

Heating Lower Limit - Zone 1

1B



20~37°C

20

Heating Upper Limit - Zone 2

1C



37~60°C

60

Heating Lower Limit - Zone 2

1D



20~37°C

20

Cooling - Upper Limit

18



18~30°C

25

Cooling - Lower Limit

19



7~20°C

7

Hot Water - Upper limit

1E



60~75°C

75

Hot Water - Lower limit

1F



40~60°C

40

Heat Pump Start Temperature

20



20~45°C

38

Heat Pump Stop Temperature

21



40~50°C

45

Temperature Compensation Outside Air Temperature (°C)

24



-20~10°C

0

Compensation Temperature (°C)

25



0~15°C

3

Operation Time (x10 min)

08



3~18

6

Setting Temperature (°C)

09



40~75°C

75

Setting Temperature (°C)

0A



65~75°C

75

Start Cycle (Day)



0D

1~10

7

Start Time (Hour)



0C

0~23

22

Operation Time (min)

0B



0~60

30

Hot Water & Heating Switching Temperature (°C)

22



-20~20

0

Boiler & Heat Pump Switching Temperature (°C)

23



-20~20

-10

Outside Temperature T0 (°C)

A1



-30~-20°C

-20

Outside Temperature T1 (°C)

29



-15~0°C

-10

Outside Temperature T2 (°C)





0

0

Outside Temperature T3 (°C)

2B



0~15°C

10

Setting Temperature A at T0 (°C) - ZONE 1

2C



20~60°C

40

Setting Temperature B at T1 (°C) - ZONE 1

2D



20~60°C

35

Setting Temperature C at T2 (°C) - ZONE 1

2E



20~60°C

30

Setting Temperature D at T3 (°C) - ZONE 1

2F



20~60°C

25

Setting Temperature E at 20°C (°C) - ZONE 1

30



20~60°C

20

ZONE2 temperature setting 0 = Percentage (FC 31) 1 = Fixed value (FCA3~A5)

A2



0~1

0

Ratio Of Zone 2 In Zone 1 Auto Mode (%)

31



0~100%

80

Setting Temperature A’ at T0 (°C) - ZONE 2

A3



20~60°C

40

Setting Temperature B’ at T1 (°C) - ZONE 2

A4



20~60°C

35

Setting Temperature E’ at 20°C (°C) - ZONE 2

A5



20~60°C

20

Auto Curve - Temperature Shift (°C)

27



-5~5°C

0

– 34 –

After Commissioning

Change 1

Change 2

34-EN

Installation Manual

Hydro Unit

Location & FC Number FC Description

8

9

10

Frost Protection

Back Up Heater Control

Night Setback

Hydro

RC

Range

Default

Function 0=Invalid; 1=Valid

3A



0~1

1

Frost Protection Setting Temperature (°C)

3B



10~20°C

15

Schedule date



12

0~20

0

Schedule time



13

0~23

0

Downtime Back Up Heater 0=5min; 1=10min;2=15min;3=20min

33



0~3

1

Uptime Back Up Heater 0=10min; 1=20min; 2=30min; 3=40min

34



0~3

0

Change Setback Temperature

26



3~20°C

5

Zone selection 0=Zone 1 & 2; 1= Zone 1 Only

58



0~1

0

Start Time (Hour)



0E

0~23

22

End Time (Hour)



0F

0~23

06

12

Hydro 2 Way Valve Operation Control

Cooling 2 Way Valve Operation Logic 0=Activated during cooling; 1=Not activated during cooling

3C



0~1

0

13

3 Way Diverting Valve Hydro 3 Way Operation Logic 0=Activated Diverting Valve during hot water operation; Operation Control 1=not activated during hot water operation

54



0~1

0

2 Zone Mixing Valve Drive Time

Specified Drive Time for Mixing Valve (x10sec)

0C



3~24

6

14

Mixing valve OFF (control time - mins)

59



1~30

4

15

Boiler/Heat Pump Synchronisation

External Boiler/Heat Pump Synchronisation 0=Synchronised; 1=Not synchronised

3E



0~1

0

16

Maximum Operation Time Of Hot Water Heat Pump

Maximum Heat Pump Operation Time In Hot Water Operation Priority Mode (minutes)

07



1~120

30

17

0=Cooloing & Heating Cooling Operation Operation; 1=Heating Only Operation

02



0~1

0

18

Remote controller Indication

24h or 12h Time Indication 0= 24h; 1=12h



05

0~1

0

Low Noise Operation 0=Invalid; 1=Valid



09

0~1

0

19

CDU Night Time Low Noise Operation

Start Time (Hour)



0A

0~23

22

End Time (Hour)



0B

0~23

06

20

Alarm Tone

Tone Switching 0=OFF; 1=ON



11

0~1

1

B5



0~1

0

9D



20~60°C

40

21

Choice of the initial setting temperature 0=The fixed temperature by Second Remote FC9D controller and room temperature 1=The calculated temperature by Auto curve thermostat Fixed initial temperature setting

35-EN

– 35 –

After Commissioning

Change 1

Change 2

Installation Manual

Hydro Unit

Location & FC Number FC Description

22

Operation by external input (option)

Hydro

RC

Range

Default

0 = Contacts low > high system stop. System restart with remote controller 1 = Contacts high > low system stop. System restart with remote controller 2 = Contacts high > low system stop. Contacts low > high system restart 3 = Contacts low > high system stop. Contacts low > high (second time) system restart

52



0~3

0

0 = Restart hot water and heating 1 = Restart in the mode when stopping 2 = Restart hot water 3 = Restart heating 4 = Tempo control 1; without heater 5 = Tempo control 2; without HP and heater

61



0~5

0

Changing the control of S1 (CN210) 0 = none 1 = Hot water supply control In addition, it is enabled only when switch 2_3 is set to “OFF” and FC61 is set to “3”.

B6



0~1

0

01



0012 or 0015

Depends on Hydro Unit

23

Hydro Unit Capacity Setting

0012 = P804XWH** 0015 = P1104XWH** Factory set but function code is needed for PCB replacement or function code reset procedure has been completed.

24

Second Remote controller Target temperature Setting

0=Water temperature 1=Room thermo temperature

40



0~1

0

25

Room Temperature Sensor Setting

Temperature shift for heating



02

-10~10

-1

Temperature shift for cooling



03

-10~10

-1

26

Synchronization control at low outside temperature

0 = HP + Boiler 1 = Boiler 2 = Backup heater 3 = Boiler (Pump P1:stop)

5B



0~3

3

27

P1 pump speed 0=100%, 1=90%, 2=80% control (duty of the 3=70%, 4=60%, 5=50% PWM)

A0



100% ~50%

0

After Commissioning

Change 1

Change 2

„ Settings by purpose Settings when hot water supply function is not used

Setting for cooling

• When the hot water supply function is not used, set DIP SW12-1 on the Hydro Unit board to ON. (Refer to page 29.)

• For Hydro Units that do not perform cooling (those for floor heating, etc.), procure a motorized 2-way valve (for cooling) (refer to “Control parts specifications” on page 20 for the details.) locally and attach it to the water pipe that is not used for cooling. Connect the valve cables to terminals TB05 (3) and (4) of the Hydro Unit.

– 36 –

36-EN

Installation Manual

Hydro Unit

• Stick the optional insulator for cooling to the bottom of the Hydro Unit.

• Cover the TFI sensor's cables and sensor with insulation tube (minimum 1 mm) shown in the diagram on the right.

▼ Fig. 8-03 M

TFI

Direct Buffer tank for Under Floor Heating

Settings for hot water supply • Prepare the optional hot water cylinder. • Procure a motorized 3-way valve (refer to “Control parts specifications” on page 20 for the details.) locally and perform piping. Connect the valve cables to terminals TB05 (7), (8) and (9) of the Hydro Unit. • Set DIP SW12-1 on the Hydro Unit board to OFF. (Refer to page 29.) • Connect the power supply unit for the hot water cylinder heater to terminals TB03 L and N of the Hydro Unit. • Connect cables between the Hydro Unit and the hot water cylinder as follows: Hydro Unit terminals TB03 (1), (2), and earth — Hot water cylinder (1), (2), and earth TB06 A, B, and earth — Hot water cylinder A, B, and earth

Settings for 2-zone temperature control • Procure a motorized mixing valve (refer to “Control parts specifications” on page 20 for the details.) locally and perform piping. Connect the valve cables to terminals TB04 (1), (2), (3) and (4) of the Hydro Unit. • Procure a buffer tank locally. • Procure a water pump locally, and connect its cables to terminals TB05 (1) and (2) of the Hydro Unit. To inhibit interlocking the water pump with the internal pump of the Hydro Unit, set DIP SW10-3 on the Hydro Unit board to OFF. • Set DIP SW12-3 on the Hydro Unit board to ON. (Refer to page 29.) Attach the temperature sensor (TFI) connected to terminals TB06 C and D of the Hydro Unit near the hot water inlet of the Hydro Unit. • Fix TFI sensor on the room heating supply pipe by using the connector procured in locally. • Cover the cables with insulation tube (minimum 1 mm) or conduit so that the user cannot touch them directly.

37-EN

Zone 2 Under-floor Heating (2-Way Valve Control)

▼ Fig. 8-04 Insulation tube (minimum 1 mm)

2 Zone hot water supply pipe

TFI Sensor Tying up

More than 4 mm

Setting for second remote controller • Prepare the optional second remote controller. • Connect the cable to terminals TB07 A,B of the Hydro unit and remote controller. • Set DIP switch1 on the second remote controller board to ON. • Press long the TEST + SET + SELECT switches on the remote controller to change the Hydro Unit function code, and change address 40 to 1,and then press the SET button to enable the function.

– 37 –

Installation Manual

Hydro Unit

9

10 Maintenance

Test run

Use operation buttons usually to conduct a test run. If the outside air temperature or water temperature is outside the setting value range, press the TEST button on the remote controller and then start a test run. Since the protection setting is disabled in the TEST mode, do not continue a test run longer than 10 minutes. • Press the TEST button on the remote controller. An indication “TEST” appears on the remote controller. • Press the ZONE1, 2 button and select “heating” with the OPERATE MODE button. The pump is activated in 30 seconds. If air is not released completely, the flow rate switch is activated to stop operation. Release air again according to the piping procedure. Little air bite is discharged from the purge valve. • Check that the air bite sound disappears. • Check that the hydraulic pressure has become the predetermined pressure 0.1 to 0.2 MPa (1 to 2 bar). If the hydraulic pressure is insufficient, replenish water. • Heating operation starts. Check that the hydro unit starts heating. • Press the OPERATE MODE button and select “cooling.” • Cooling operation starts. Check that the hydro unit starts cooling and that the floor heating system is not cooled. • Press the ZONE1, 2 button to stop operation. • Press the HOT WATER button to start hot water supply operation. • Check that there is no air bite. • Check that hot water is present at the connection port of the hot water cylinder. • Press the HOT WATER button to stop the hot water supply operation. • Press the TEST button to exit the test mode.

Execute periodic maintenance at least once a year. Check points • Check all electrical connections and make adjustments if they are necessary. • Check the water pipes of the heating systems in particular any evidence of leakage. • Check the expansion tank inner pressure. If it is insufficient, enclose nitrogen or dry air in the tank. • Check that the hydraulic pressure is 0.1 MPa (1 bar) or more with a water manometer. If it is insufficient, replenish tap water. • Pull the lever of the pressure relief valve and check operation. • Clean the strainer. • Check the pump for an abnormal sound or other abnormalities.

– 38 –

38-EN

Installation Manual

Hydro Unit

11 Sensor temperature monitoring function

Hydro unit data

Item code

Data name

Outdoor unit data 39-EN

Unit

00

Control temperature (Hot water cylinder)

°C

01

Control temperature (Zone1)

°C

02

Control temperature (Zone2)

°C

03

Remote controller sensor temperature

°C

04

Condensed temperature (TC)

°C

06

Water inlet temperature (TWI)

°C

07

Water outlet temperature (TWO)

°C

08

Water heater outlet temperature (THO)

°C

09

Floor inlet temperature (TFI)

°C

0A

Hot water cylinder temperature (TTW)

0B

Mixing valve position

0E

Low pressure (Ps)

Item code

Data name

Item code

Service data

The sensor sensing temperature is displayed on the remote controller. This function allows you to make sure whether the sensor is installed properly. Press the TEST + CL buttons for four seconds or more. Select the function code with the TEMP. buttons. Press the TEST button to exit the test mode.

°C step × 10kPa

Unit

60

Heat exchange temperature (TE)

°C

61

Outside air temperature (TO)

°C

62

Discharge temperature (TD)

°C

63

Suction temperature (TS)

°C

65

Heat sink temperature (THS)

°C

6A

Current

A

6D

Heat exchanger coil temperature (TL)

°C

70

Compressor operation Hz

Hz

72

Number of revolutions of outdoor fan (lower)

rpm

73

Number of revolutions of outdoor fan (upper)

rpm

74

Outdoor PMV position × 1/10

pls

7A

Discharge pressure (PD)

× 10kPa

– 39 –

Data name

Unit

F0

Micro computer energized accumulation time × 100h

F1

Hot water compressor ON accumulation time × 100h

F2

Cooling compressor ON accumulation time

× 100h

F3

Heating compressor ON accumulation time

× 100h

F4

Built-in AC pump operation accumulation time

× 100h

F5

Hot water cylinder heater operation accumulation time

× 100h

F6

Backup heater operation accumulation time

× 100h

F7

Booster heater operation accumulation time

× 100h

Installation Manual

Hydro Unit

12 Troubleshooting „ Fault symptoms Symptom

Room is not heated or cooled. Water is not hot enough.

Possible cause

Corrective action

Incorrect remote controller setting

Check remote controller operation and temperature setting

Incorrect function code setting

Check function code setting with the function code table.

Backup heater disconnected

Check backup heater and bimetal thermostat.

Insufficient capacity

Check selection of equipment.

Sensor defect

Check whether temperature sensor is installed at the normal position.

Power is not supplied. Nothing is displayed on the remote controller. Incorrect setting

Flow rate switch is activated. Error code [A01]

Hot water leaks from pressure relief valve.

Check power supply wiring. Check DIP switch setting on the Hydro Unit board. Check the setting with the function code table.

Air bite in the pump

Release air completely according to the procedure.

Low hydraulic pressure

Set hydraulic pressure considering pipe height, and replenish water until manometer shows a value of set hydraulic pressure or more.

Strainer is clogged.

Clean the strainer.

Large resistance on the hydro side

Widen water path to the hydro unit or adopt a bypass valve.

Malfunction of motorized 3-way valve for hot water supply

Check wiring and parts.

Excessive hydraulic pressure

Set hydraulic pressure considering pipe height, and replenish water until manometer shows a value of set hydraulic pressure or more.

Check expansion tank capacity compared to total water Insufficient capacity of expansion tank amount. If it is insufficient, install another expansion tank. Expansion tank failure

Check the air pressure.

Defect mode detected by the Hydro Unit O ... Possible × .... Not possible Diagnostic functional operation

Check code

Operational cause

Backup present

Automatic reset

Pump or flowing quantity error 1) Detected by TC sensor 2) Detected by flow switch abnormality

A01

3) Detection of chattering abnormality in the flow switch input

×

×

A03

Temperature increase error (heating) (TWI, TWO, THO)

Heating O Hot water

Temperature increase error (hot water supply)

Heating O Hot water

(TTW)

1. Almost no or little water flow. • Not enough vent air • Dirt clogging in the water piping system. • The water piping is too long. • Installation of buffer tank and secondary pump 1. Disconnection of the flow switch connector. 2. Defect of the flow switch.

4) Disconnection of the flow switch connector

A02

Determination and action

O

×

O

×

– 40 –

1. Check the water inlet, water outlet and heater outlet (TWI, TWO, THO) sensors.

2.Defect of the backup heater (defect automatic reset thermostat). 1. Check the hot water cylinder sensor (TTW). 2. Check the hot water cylinder thermal cut-out.

40-EN

Installation Manual

Hydro Unit

O ... Possible × .... Not possible Check code

Diagnostic functional operation Operational cause

Backup present

Automatic reset

Antifreeze operation

1. Almost no or little water flow. • Dirt clogging in the water piping system. • The water piping is too long or too short.

O

A04

Determination and action

×

2. Check the heater power circuit. • Power supply voltage, breaker, power supply connection 3. Set the presence of the backup heater. 4. Check the water inlet, water outlet and heat exchange (TWI, TWO, TC) sensors and Flow Switch.

Piping antifreeze operation

O

A05

O

×

O

×

1. No water (heating without water) or no water flow. 2. Defect of the flow switch. 3. Defect of the backup heater (poor automatic reset thermostat).

A09

×

×

1. Almost no or little water flow. 2. Check the water inlet, water outlet and heat exchange (TWO, TC) sensors.

×

1. Almost no water flow. 2. Defect of the flow switch. 3. Check the water outlet temperature sensor (TWO).

O

O

1. Activated by a large load of heating or hot water supply. 2. Check the heater power circuit (backup or hot water cylinder heater). • Power supply voltage, breaker, power supply connection

O

Overheat protection operation (Thermostat of the backup heater)

Antifreeze operation 2 A10 Operation of the release protection

Heating Cooling

×

A11

Hot water O Heating, hot water heater error A12

E03

Regular communication error between hydro unit and remote controller

×

O

1. Check remote controller connection. 2. Defect in the remote controller.

E04

Regular communication error between hydro unit and outdoor unit

O

O

1. Check the serial circuit. • Miswiring of the crossover between the hydro unit and the outdoor unit

O

O

1. Check the resistance value and connection of the heat exchange temperature sensor (TC).

O

O

1. Check the resistance value and connection of the water inlet temperature sensor (TWI).

×

O

1. Check the resistance value and connection of the water outlet temperature sensor (TWO).

F03 F10 F11

41-EN

2. Check the water inlet, water outlet and heater outlet sensors (TWI, TWO, THO). 3. Disconnection of the backup heater. 1. Almost no or little water flow. 2. Defect of the flow switch. 3. On-load cooling or prolonged defrosting (a lot of frost formation) under the above conditions. 4. Defect in the low pressure sensor. 5. Check the refrigeration cycle (gas leak).

Low pressure sensor operation error A08

1. Check the heater power circuit. • Power supply voltage, breaker, power supply connection

TC sensor error TWI sensor error TWO sensor error

– 41 –

Installation Manual

Hydro Unit

O ... Possible × .... Not possible Check code F14 F17 F18 F19 F20

Diagnostic functional operation Automatic reset

TTW sensor error

×

O

1. Check the resistance value and connection of the hot water cylinder sensor (TTW).

TFI sensor error

×

O

1. Check the resistance value and connection of the floor-inlet temperature sensor (TFI).

THO sensor error

×

O

1. Check the resistance value and connection of the heater outlet temperature sensor (THO).

Detection of THO disconnection error

×

×

1. Check for any disconnection of the heater outlet temperature sensor (THO).

TFI sensor error

×

×

1. Check the connection of the floor-inlet temperature sensor (TFI).

O

O

1. Check the connection (body or connection wiring) of the low pressure sensor. 2. Check the resistance value of the low pressure sensor.

× × × ×

× × × ×

Low pressure sensor error F23

F29

EEROM error

F30

Extended IC error

L02

Combination error

L07

Communication error

L09

Setting error When ZONE1 has not been set, while ZONE2 has been set.

1. Replace the P.C. board. (Hydro unit) 1. Replace the P.C. board. (Hydro unit) 1. Check the model name of the outdoor unit. 1. Replace the P.C. board. (Hydro unit)

×

×

1. Check the setting of the FC01 capability specifications. HWS-P804xx-E = 0012 HWS-P1104xx-E = 0015

×

×

1. Check the body DP-SW12_2,3.

Communication error

L16

Determination and action

Backup present

Operational cause

Defect mode detected by the Outdoor Unit Check code F04 F06 F07 F08 F12 F13

Diagnostic functional operation Operational cause TD sensor error TE sensor error TL sensor error TO sensor error TS sensor error TH sensor error

Automatic reset

O

×

1. Check the resistance value and connection of the discharge sensor (TD).

O

×

1. Check the resistance value and connection of the heat exchange temperature sensor (TE).

O

×

1. Check the resistance value and connection of the heat exchange temperature sensor (TL).

O

×

1. Check the resistance value and connection of the outdoor temperature sensor (TO).

O

×

1. Check the resistance value and connection of the suction temperature sensor (TS).

O

×

1. Check the resistance value and connection of the heat-sink temperature sensor (TH).

O

×

1. Check for any wrong installation of the heat exchange temperature sensor (TE) and the suction temperature sensor (TS).

O

×

1. Check the value of PD sensor by the remote controller.

O

×

TE, TS sensors error F15 F24 F31

PD sensor error EEPROM error

Determination and action

Backup present

– 42 –

42-EN

Installation Manual

Hydro Unit

Check code

Diagnostic functional operation Operational cause

Backup present

Automatic reset

O

×

Compressor breakdown H01

Determination and action 1. Check the power supply voltage. 2. Over-loaded condition of the refrigeration cycle. 3. Check that the service valve is fully open.

Compressor lock H02

H03

Defect in the current detection circuit

O

×

1. Defect of compressor (lock) – Replace the compressor. 2. Defect of compressor wiring (open phase).

O

×

1. Replace the outdoor inverter control board.

O

×

1. Check the refrigeration cycle (gas leak). 2. Check the case thermostat and connector. 3. Check that the service valve is fully open. 4. Defect of the pulse motor valve. 5. Check for kinked piping.

Operation of case thermostat H04

L10

Unset service PC board jumper Jumpers have not been cut.

O

×

1. Cut outdoor PC board jumper wire (for service).

L15

Combination error

O

×

1. Check the model name of the hydro unit.

L29

The communication between the outdoor PC board MUCs error

O

×

1. Replace the outdoor control board.

×

1. Check the refrigeration cycle (gas leak). 2. Defect of the pulse motor valve. 3. Check the resistance value of the discharge temperature sensor (TD).

The outlet temperature error P03

O

P04

The high pressure switch error

O

P05

The power supply voltage error

O

× ×

Overheating of heat-sink error P07

O

×

Detection of gas leak

P15

43-EN

1. Check the power supply voltage. 1. Check the thread fastening and heat-sink grease between the outdoor control board and the heat-sink. 2. Check the heat-sink fan duct. 3. Check the resistance value of the heat-sink temperature sensor (TH). 1. Check the refrigeration cycle (gas leak). 2. Check that the service valve is fully open.

O

×

– 43 –

3. Defect of the pulse motor valve. 4. Check for kinked piping. 5. Check the resistance value of the discharge temperature sensor (TD), the suction temperature sensor (TS). 6. Check the value of PD sensor by the remote controller.

Installation Manual

Hydro Unit

Check code

Diagnostic functional operation Operational cause

Backup present

Automatic reset

×

1. Check the operation of the 4-way valve unit or the coil characteristics. 2. Defect of the pulse motor valve. 3. Check the resistance value of the heat exchange temperature sensor (TE) and the suction temperature sensor (TS).

×

1. Check that the service valve is fully open. 2. Defect of the pulse motor valve. 3. Check the outdoor fan system (including clogging). 4. Over-filling of refrigerant. 5. Check the resistance value of the heat exchange temperature sensor (TL) and the water outlet temperature sensor (TWO). 6. Check the value of PD sensor by the remote controller.

×

1. Check the lock status of the motor fan. 2. Check the connection of the fan motor cable connector. 3. Check the power supply voltage.

×

1. Abnormality occurs when operating with the compressor wiring disconnected … Check the control board. 2. No abnormality occurs when operating with the compressor wiring disconnected … Compressor rare short.

×

1. Even if the connection lead wire of the compressor is disconnected, it stops due to an abnormality in the position detection … Replace the inverter control board. 2. Check the wire wound resistor of the compressor. Short circuit … Replace the compressor.

The 4-way valve inversion error P19

O

High pressure protection operation

P20

O

Outdoor fan system error P22

O

Short circuit of the compressor driver element error P26

O

Compressor rotor position error

P29

O

Determination and action

– 44 –

44-EN

Installation Manual

Hydro Unit

Defect mode detected by the remote controller Diagnostic functional operation Check code

Operational cause

Status of airconditioning

No communication between hydro Stop Not unit an remote controller displaying at all (cannot operate by the remote controller)

Condition



E09

45-EN

Defect in the remote controller power supply 1. Check the remote controller wiring. 2. Check the remote controller. 3. Check the hydro unit power supply wiring. 4. Check the water heat exchange control board.

No communication between hydro Stop Displayed when unit and remote controller (Automatic reset) the abnormality is detected.

Defect in the reception of the remote controller 1. Check the remote controller crossover. 2. Check the remote controller. 3. Check the hydro power supply wiring. 4. Check the water heat exchanger board.

Defect in the signal transmission to the hydro unit. (Detected on the remote controller side)

Stop Displayed when (Automatic reset) the abnormality is detected.

Defect in the transmission of the remote controller 1. Check the transmitter circuit inside the remote controller. … Replace the remote controller.

Several remote controller base units (Detected on the remote controller side)

Stop (The handset continues)

1.2 Check several base units with the remote controller … The base unit is only one, and others are handsets.

E01

E02

Determination and action

– 45 –

Displayed when the abnormality is detected.

EF99808601

Similar documents