Notes contain important information in cases where there is no risk of personal injury or material losses and are identified by the symbol shown on the left. They are bordered by horizontal lines above and below the text.

ADDITIONAL SYMBOLS

•

Symbol

–

Tab. 1

Meaning

a step in an action sequence a reference to a related part in the document or to other related documents a list entry a list entry (second level)

1.2 SAFETY PRECAUTIONS

GENERAL

Read the guide carefully and keep it to hand for future use.

INSTALLATION AND COMMISSIONING

Installation and commissioning may only be carried out by a qualified installer.

RISK OF DAMAGE DUE TO OPERATOR ERROR

Operator errors can result in injury and damage to property.

This heat pump must only be operated by a responsible adult who has been instructed in, understands and is aware of the heat pump's operating conditions and effects.

SERVICE AND MAINTENANCE

Only qualified personnel may carry out repairs.

Incorrect repairs can lead to serious risks to the user, and may invalidate your warranty.

Only use original Bosch spare parts.

Service and maintenance must be carried out annually by an suitably qualified service representative.

6 720 641 467 (2010/01) 3

BENCHMARK

2 BENCHMARK

Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturer's instructions by competent persons and that it meets the requirements of the appropriate Building Regulations.

The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be provided to the customer for future reference.

Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the scheme. Visit www.centralheating.co.uk for more information.

4 6 720 641 467 (2010/01)

3 BUILDING REGULATIONS

This appliance must be installed and serviced only by a competent person in accordance with the current: IEE

Regulations, Building Regulation, Building Standards

(Scotland) (Consolidation), Building Regulations

(Northern Ireland), local water by-laws, Health & Safety

Document 63S (The Electricity at Work Regulations

1989), IS 813 (Eire) and other local requirements.

The relevant Standards should be followed, including:

BS7074:1: Code of practice for domestic and hot water supply

EN:12828: Central heating for domestic premises

BS7593: Treatment of water in domestic hot water central heating systems

BS EN 14511: Requirements heat pumps for space heating and cooling

BS EN 378 : Safety and environmental requirements for heat pumps

The Health and Safety at Work Act 1974

The Management of Health and Safety at Work

Regulations 1999

The Construction (Health, Safety and Welfare)

Regulations 1996

The Construction (Design and Management) Regulations

1994

The Lifting Operations and Lifting Equipment

Regulations 1998

Where no specific instruction is given, reference should be made to the relevant codes of Practice.

Potable water: All seals, joints, compounds (including flux and solder) and components used as part of the secondary domestic water system must be approved for use with potable water supplies.

This is to certify that the above ranges of products manufactured by Bosch Thermotechnology have been tested and found to comply with:

• the requirements of the (Water Fittings) Regulations

1999 for England and Wales, the Water Byelaws 2000,

Scotland and the Water Regulations Northern Ireland.

• the requirements of the UK Building Regulations:

The Building Regulations 1991 (England & Wales)

Requirements G3, L1 and Regulation 7.

The Building Standards (Scotland) Regulations 1990.

Regulation 10 (B2), 22 (J3.3a and J3.4), 27 and 28 (P2.6 and P3).

The Building Regulations (Northern Ireland) 2000.

6 720 641 467 (2010/01)

BUILDING REGULATIONS

INCLUDED IN THE DELIVERY

4 INCLUDED IN THE DELIVERY

4.1 GREENSOURCE 6, 7 & 9.5 WITH INTERNAL UNIT HWDU-151

1 2

7 8

Fig. 1

With heat pump:

Valve with filter

Circlip pliers

Rubber feet

Outdoor sensor T2 with cable (with HWDU)

Literature pack

Room sensor T5 with cable (with HWDU)

Flexible connection hose

6 720 641 467-79.1I

With unvented air to water kit:

Blending valve

DHW expansion vessel

High flow rate inlet control set

Expansion vessel hose

Acetal tundish

Wall mounting kit for expansion vessel

Waste coupler

Filling loop with valve

6 720 641 467 (2010/01)

GENERAL

5 GENERAL

Only qualified installers may carry out the installation. The installer must follow applicable rules and regulations and recommendations from the manufacturer.

5.1 TRANSPORT AND STORAGE

The heat pump should always be transported and stored in an upright position. However, the heat pump may be tilted temporarily, but must not be laid down on its back or sides.

5.2 SETTING UP

•

The heat pump must be installed outside the building on a level, hard standing area.

•

The installer should take the sound level of the heat pump into consideration when siting

(Æ chapter 15.3).

•

The hdwu must be installed inside the property.

Pipework between the heat pump and the internal unit should be kept as short as possible. All pipe work between the outdoor and indoor unit must be well insulated using class 0 insulation or better.

•

Condensate drain water from the heat pump should be led to a suitable drain area and the pipe work insulated using class O insulation.

The pipe work must fall and terminate above the drain.

•

The drain pipe can also be routed into a foul water drain outside.

•

The heat pump must be installed with the specified clearances for airflow.

•

The heat pump must not be positioned so that the recirculation of cold air can occur.

•

Consideration should be given to siting the outdoor unit directly below eaves and possible snow fall onto the fan.

•

Removing transport stay.

5.3 MINIMUM AND MAXIMUM

OPERATING TEMPERATURES

Maximum operating return temperature: The heat pump can operate with a maximum return temperature of approx. 59 °C. For safety reasons the heat pump stops as soon as this temperature is exceeded.

Maximum operating temperature heat only: The maximum operating flow temperature is factory set to

62 °C. This can be changed by the installer to a maximum of 70 °C. It is recommend that the factory supplied blending valve be fitted in line with G3 regulations.

Minimum operating temperature: The heat pump stops when the outside temperature is below - 20 °C. Only the internal unit will then generate heat. The heat pump restarts automatically when the outside temperature rises again.

5.4 WEATHER COMPENSATION

CONTROL

The control unit regulates heat generation for the heating either exclusively via the outside temperature sensor (weather-compensated control) or via a combination of outside temperature sensor and room temperature sensor (room temperature-dependent control).

For more detailed information regarding the control unit, see the heat pump operating instructions.

5.5 DEFROSTING METHOD

The principle of defrosting in the heat pump is known as hot gas defrosting. During defrosting, the flow in the refrigerant circuit is reversed by means of an electricallycontrolled four-way valve.

The hot gas melts the ice on the evaporator fins. As this happens, the heating water cools down a little. The defrost duration depends on the thickness of the ice and the current outside temperature. This process is controlled by the T2, T11 and T12 temperature sensors.

An additional function enables defrosting of the fan.

Warm air is drawn through the fan and thereby prevents it from freezing up again.

6 720 616 817-26.1I

Fig. 2 Transport stay

6 720 641 467 (2010/01) 7

GENERAL

5.6 CHECKLIST

Each heat pump installation is unique. The following checklist will give you a general description of how the installation should be carried out.

5.6.1

GREENSOURCE 6-9.5 WITH INTERNAL UNIT

HWDU-151

1. Position the heat pump on a level and stable base.

2. Connect the flow and return pipes to the heat pump.

3. Fit the valve with filter.

4. Fit the drain pipe to the heat pump.

5. Fit the corresponding flow and return pipes to the internal unit.

6. Connect the relief valve discharge pipe.

7. Connect the HWDU unit to the heating system or buffer cylinder.

8. Fit the outside temperature sensor and, the room temperature sensor.

9. Connect the CAN-BUS cable to the hwdu unit and the heat pump.

10. Fill and vent the heating system.

11. Connect the power supply RCD and isolation switches to both indoor and outdoor units.

12. Switch on the system. Make all required settings at the control panel.

13. Check the heating installation after commissioning and insulate all external pipe work.

5.7 LOCATIONS OF THE TEMPERATURE

SENSORS

5.7.1

GREENSOURCE 6-9.5 WITH INTERNAL UNIT

HWDU-151

T12

T11

T10 T9

6 720 616 817-03.1I

Fig. 3 Greensource 6-9.5 - internal unit HWDU-151

Flow temperature sensor

Outside temperature sensor

Cylinder temperature sensor

Room temperature sensor

Hot gas temperature sensor

Heating water temperature sensor, flow out

Heating water temperature sensor, return in

T10 Condenser temperature sensor

T11 Refrigerant temperature sensor, evaporator

T12 Air temperature sensor, evaporator

8 6 720 641 467 (2010/01)

5.8 CAN-BUS

The various circuit boards in the heat pump and hwdu are connected by a CAN-BUS communications cable.

CAN (Controller Area Network) is a two-wire system for communication between microprocessor based modules/circuit boards, which are connected in series.

The Greensource outdoor unit holds the PCB - IOB board, all other pcbs are located in the indoor HWDU.

CAUTION: Interference.

The CAN-BUS cable must be screened and laid separately from the power cable.

A suitable cable for the external connection is a CAT 5

E FTP 2x2x0.5A. The cable must be multi-core and screened. The screen may only be earthed at one end and only at the casing.

The cable may be up to 20 m long.

GENERAL

CAN-BUS cable must not be laid alongside power supply cables. Minimum distance 100 mm between cables.

They may be laid alongside sensor cables.

Ensure that the external CAN- BUS cables when routed into the hwdu are not in connect with the mains cable.

CAUTION: Do not mix up the 12V and CAN-

BUS connections!

The processors are destroyed if 12V is connected to the CAN-BUS.

Check that the four cables are connected to the contacts with the corresponding marking on the circuit board.

The connection between the circuit boards is by four wires, because the 12V-supply between the circuit boards must also be connected. The circuit boards have markings for both the 12V and CAN-BUS connections.

6 720 0614 056-03.1D

Fig. 4

Switch S1 highlights the beginning and end of the CAN-

BUS cable. This means that the CPU board in the internal unit and the IOB board in the heat pump must be terminated by S1. For this, set S1 to Term.

6 720 641 467 (2010/01) 9

GENERAL

5.9 HANDLING CIRCUIT BOARDS

Circuit boards with control electronics are sensitive to discharges of static electricity (ESD – ElectroStatic

Discharge) when handled. To prevent damaging the components, special care is therefore required when handled.

CAUTION: Wearing a ground-connected bracelet is highly recommended.

A condition for good ESD protection is a groundconnected bracelet when handling electronics. This bracelet should be put on before opening the screened metal bag/packaging or before exposing an installed board. The bracelet should be worn until the circuit board is enclosed in its screen packaging or closed electric box. Replaced, returned circuit boards should be handled in the same way.

6 720 614 366-24.1I

Fig. 5 Bracelet

Damage is usually hidden due to the nature of the failure, and a circuit board can operate impeccably during commissioning but show signs of problems later.

Charged objects may only be problematic if they are in close proximity to the electronics. Keep a distance of at least one metre from expanded polystyrene, protective plastic and other packaging, synthetic material (e.g. fleeces) and similar before starting work.

Anti-static protection facilities (e.g. mats, wrist bands etc) should always be used if available. If not available, the following handling precautions must be observed ; touch the boiler earth immediately prior to removing the part from the packaging. Handle the PCB only at the edges. Touch earth on a regular basis whilst the board is being fitted and connected. Do not touch any electronic components.

Fig. 6

6 720 614 366-25.1I

10 6 720 641 467 (2010/01)

5.10 APPLIANCE LAYOUT

5.10.1 HEAT PUMP

4 5

Fig. 7 Greensource 6-9.5

Compressor

Dry filter

Heat exchanger

Sight glass

4-way valve

Low pressure switch

Expansion valve

Non-return valve

High pressure switch

1 2 3 4 5

6 720 616 818-08.1I

GENERAL

5.10.2 INTERNAL UNIT HWDU-151

6 720 641 935-05.1I

Fig. 9 Connection chamber, internal unit

Pressure gauge (System operating pressure 0.5 – 1.5 bar)

Mixing valve

Heat carrier pump (G2)

Pump for heating system (G1)

Heating three-way valve

Hot water three-way valve

Drain point

Fig. 8 Greensource 6-9.5 control panel

Terminal

Overload relay

Capacitor

Soft starter

PCB (IOB board)

6 720 641 467-70.1I

6 720 641 467 (2010/01) 11

DIMENSIONS, CLEARANCE AND PIPE CONNECTIONS

6 DIMENSIONS, CLEARANCE AND PIPE CONNECTIONS

6.1 HEAT PUMP

839

665

818

643

Fig. 10 Greensource 6-9.5 dimensions

Drain

Cable entry

Flow to the HWDU (hose, 1" fem. thread)

Return from the HWDU (hose, 1" fem. thread)

REQUIRED MINIMUM CLEARANCES FOR THE HEAT

PUMP

A minimum clearance of 1 m is required in front of the pump; the minimum clearance to the back and sides is

0.3 m.

If a roof is installed it must be positioned at least 1.5m above the heat pump to avoid the recirculation of cold.

178

147

6 720 616 817-27.1I

12 6 720 641 467 (2010/01)

6.2 INTERNAL UNIT

800

1240

Fig. 11 Internal unit

REQUIRED MINIMUM CLEARANCES FOR THE

INTERNAL UNIT

A minimum clearance of 0.8 m is required in front of the internal unit. No clearance to the sides is required.

A minimum clearance of 50 mm is required between the internal unit and fixed installations, such as walls, wash basins etc. Preferably install the unit on external walls or insulated intermediate walls.

PIPE CONNECTIONS

DIMENSIONS, CLEARANCE AND PIPE CONNECTIONS

Connect the cold water supply to the outlet marked cold water.

Connect the DHW pipe to the outlet marked DHW.

The following connections must be made at the heat pump:

A 32 mm drain pipe from the drain connection to the drain.

Installation of the valve with filter

Install the valve with filter horizontally in the return to the heat pump and as near to the heat pump as possible.

Pipe dimensions

Heating

Locking ring connection

Ø 22

Cold water and domestic hot water

Locking ring connection Ø 22

Heating water inlet, heating water outlet and drain

Locking ring connection Ø 22

Waste water/drain

Tab. 2

Ø 32

Between the heat pump and the house we recommend

22 mm pipe to be used, the maximum distance is 15 metres. The external pipe must be insulated using class

0 insulation.

6 720 641 935-06.1I

Fig. 12 Internal unit front

Hot water

Cold water

Drain point

The following connections must be made at the internal unit:

Connect the heating flow to the outlet marked flow.

Connect the heating return to the outlet marked return.

6 720 641 467 (2010/01) 13

DIMENSIONS, CLEARANCE AND PIPE CONNECTIONS

543

420

194

300

6 720 616 817-06.1I

Fig. 13 Back and top view of the internal unit

Heating return

Heating water inlet (from the heat pump)

Heating flow

Heating water outlet (towards the heat pump)

6.3 FITTING THE FILTER VALVE

The task of the particle filter is to filter out dirt before it can enter the heat pump. Accordingly, the supplied filter valve must always be fitted on the return pipe, between the HWDU and the outdoor heat pump. It should be fitted as close to the heat pump as possible and be horizontal.

14 6 720 641 467 (2010/01)

HEATING SYSTEM CONNECTION

7 HEATING SYSTEM CONNECTION

7.1 FITTING THE UNVENTED KIT

7.1.1

PARTS TO ASSEMBLE

7.3 DETAILED G3 DISCHARGE PIPE

INSTALLATION REQUIREMENTS

The discharge pipework must be routed in accordance with part G3 of schedule 1 of the building Regulations.

The tundish should be vertical, located in the same space as the unvented hot water cylinder and be as close as possible and within 600mm of the safety device e.g. the temperature relief valve. The discharge pipe from the tundish should be:

• made of metal

• at least one pipe size larger than the nominal outlet size of the safety device (larger sizes may be required if the equivalent hydraulic resistance exceeds that of a straight pipe 9m long - refer to BS6700)

• terminate in a safe place where there is no risk to persons in the vicinity of the discharge, and position safely from electrical devices.

• have a vertical section of pipe at least 300mm long below the tundish before any elbows or bends in the pipework

• installed with a continuous fall

• visible at both the tundish and the final point of discharge or where this is not possible or practically difficult there should be clear visibility at one or the other of these locations

6 720 641 467-80.1I

Fig. 14

Expansion vessel

High flow rate inlet control set

Expansion vessel hose

Tundish G1" x 28 mm incl. straight fitting. Tundish 15 mm x

22 mm

Wall mounting kit for expansion vessel

Blending valve

Filling loop with valve

7.1.2

CONNECTION

Mount the expansion vessel with the wall mounting kit. Connect the expansion vessel hose to the expansion vessel.

Connect the expansion vessel and inlet control set externally to the appliance in line with G3 regulations.

We recommend that this be positioned above the

HWDU.

The blending valve should be fitted between the cold and the DHW outlet to the tap.

7.2 USE IN HARD WATER AREAS

Normally there is no need for water treatment to prevent scale formation. In areas where temporary water hardness exceeds 200ppm, consideration may need to be given to the fitting of a scale prevention device. In such circumstances the advice of the local water authority should be sought.

6 720 641 467 (2010/01) 15

HEATING SYSTEM CONNECTION

600 mm maximum

300 mm maximum

6 720 641 467-75.1I

Fig. 15 Typical discharge pipe arrangement

Safety device (e. g. temperature pressure relief valve)

Metal discharge pipe (D1) from temperature relief value to tundish

Tundish

Metal discharge pipe (D2) from tundish, with continuous fall. See 3.9d i-iv, Table 1 and worked example.

Fixed grating

Trapped gulley

Discharge below fixed grating (3.9d gives alternative points of discharge)

7.4 TUNDISH (HWDU)

Fit the tundish and straight fitting G1" x 28 mm as shown on the illustration. The tundish and fitting are supplied together with the HWDU as part of the G3 regulations.

Fig. 16

Tundish

6 720 641 467 (2010/01)

6 720 641 467-76.1I

HEATING SYSTEM CONNECTION

Valve outlet size

G1/2

<G3>/4

Size of discharge pipework D1

15 mm

22 mm

28 mm

Size of discharge pipework D2

22 mm

28 mm

35 mm

28 mm

35 mm

42 mm

35 mm

42 mm

54 mm

Tab. 3 Valve outlet size

7.5 HOW TO DRAIN THE HOT WATER

CYLINDER

Maximum length of straight pipe (no bends or elbows)

Up to 9 m

Up to 18 m

Up to 27 m

Up to 9 m

Up to 18 m

Up to 27 m

Up to 9 m

Up to 18 m

Up to 27 m

Deduct the figure below from the maximum length for each bend or elbow in the discharge pipe

0.8 m

1.0 m

1.4 m

1.0 m

1.4 m

1.7 m

1.4 m

1.7 m

2.3 m

6 720 641 467-77.1I

Fig. 17

Mains cold water in

Domestic hot water out

1. Turn off the main water supply to the cylinder.

2. Open a hot water tap with a position as low as possible in the building, in order to reduce the pressure.

3. Remove the pipe connection 1 - Mains cold water in and connect one end of the hose pipe to the connection. Terminate the other end of the hose to a drain or to outside. Ensure that the drain end of the hose is at a lower level than the bottom of the cylinder. The greater the fall on the hose, the higher the flow rate.

4. Disconnect connection 2 - Domestic hot water out.

5. Start the siphon effect by pumping or sucking at the drain end of the hose.

6. Let the whole volume drain out.

7.6 HOW TO FLUSH THE SYSTEM & TANK

To flush the tank use the above proposed setup, add a hose onto the hot water outlet position number 2 (in the above diagram) and then flush the hot water tank.

7.7 FLUSHING THE HEATING SYSTEM

The heat pump is a part in a heating system. Faults in the heat pump can be caused by poor water quality in the radiators/under floor heating or air penetrating the system continuously.

Oxygen causes the formation of corrosion products in the form of magnetite and deposits.

Magnetite has a grinding effect on the heating system's pumps, valves and components with turbulent flows such as the condenser.

Heating systems which require regular filling or where the heating water is not clear when drained, require remedial measures before the installation of a heat pump, for example the heating system must be fitted with filters and air vents.

Do not use any water treatment additives except agents for raising the pH level. Recommended pH value is 7.5 –

The water inside the heating system must be neither aggressive nor indicate a high chloride content. Very high and very low pH values are not allowed.

To protect the heat pump against contamination:

Thoroughly flush the pipework prior to connecting the heat pump.

6 720 641 467 (2010/01) 17

HEATING SYSTEM CONNECTION

[kPA]

7.8 CONNECTING THE HEAT PUMP TO

THE HEATING SYSTEM

The heating system pipes must be laid so that they withstand temperature differences in the heating water, without the risk of noise or clicking in the heating system.

To prevent vibrations between the heat pump and the remaining system:

Install the flexible hoses at the inlet and outlet for the heat pump supplied as standard.

For the connection between the internal unit and the heat pump, up to 20 m length with a 28 mm diameter such as Microflex or Ecoflex.

Outdoor pipes must be insulated with a material that cannot absorb moisture, such as Armaflex class 0.

PUMP CURVES

500

1000

1500 2000 [l/h]

6 720 614 056-11.1D

Fig. 18 Heating circuit pump

18 6 720 641 467 (2010/01)

7.9 CONNECTION PRINCIPLE OF THE

INTERNAL UNIT

The principle method of operation is based on the vapour compression cycle with any additional heat being provided by the built in electric heater. The control unit regulates the heat pump in accordance with the set heating curve with the actual temperatures captured by outside temperature sensor T2 and flow temperature sensor T1.

When the heat pump can no longer meet the entire heating demand on its own, the electric additional heat in the internal unit starts and generates the temperature required inside the building together with the heat pump.

HEATING SYSTEM CONNECTION

DHW heating has priority. DHW is regulated by means of the actual temperature captured by cylinder temperature sensor T3. Heating is switched off via the 3way valve when the DHW cylinder is being heated up.

The heating system will be supplied with heating water again once the DHW cylinder has reached its set temperature.

Operation in extreme cold conditions:

At an outside temperatures below approx. – 20 °C, the heat pump stops automatically and can no longer heat

DHW. Under those conditions, the additional electric heater in the internal unit automatically takes over the

DHW heating.

C12 Primary water storage tank*

G2 Heat carrier pump

G3 Fan

E41 Hot water cylinder

Q43 Pressure valve

Q45 Tundish

Sensors sensor (indoor unit)

T9 Heat pump return sensor

T10 Condenser

Q46 primary water storage tank is not required

** G1B is not supplied and should only be used in conjunction with the Primary water storage tank.

Fig. 19 Internal unit

6 720 641 467 (2010/01)

6 720 641 467-83.1I

HEATING SYSTEM CONNECTION

7.10 FILLING THE HEATING SYSTEM

After flushing the heating system the hot water heater must be filled with water. The heating system is then filled.

WARNING: The water heater can crack if filling is performed in the wrong order.

Fill and pressurise the hot water heater

before the heating system is filled.

Fill the heating system:

1. Open the shut-off valve with non-return valve to fill the DHW cylinder.

2. Open the valve to fill the system with heating water.

3. Open the air vent valve at the top of the DHW cylinder to vent the heating system.

4. Also vent via the heat pump air vent valve.

5. Fill the heating system up to the correct pressure. The standard pressure is 1-2 bar.

6. Shut the heating water filling cock when the correct pressure is reached.

Fig. 21 Heat pump

Air vent valve

6 720 641 935-07.1I

Fig. 20 Connection chamber, internal unit

Pressure gauge (0.5-1.5 bar)

6 720 616 817-25.1I

20 6 720 641 467 (2010/01)

POWER SUPPLY

8 POWER SUPPLY

DANGER: From electric shock!

Prior to connecting the power supply, isolate the heating system from the mains power.

WARNING: The system will be damaged if the power is switched on without it being filled with water.

Fill the DHW cylinder, pressurise it and fill the heating system. Then switch on the power supply.

CAUTION: The PCB can be damaged through electrostatic discharge. This can cause faults in the electronic components.

Handle PCBs with the greatest care.

Check that the cable and board are OK. To prevent inductive influences, route LV cables separately from cables carrying 230 V or 400 V (minimum 100 mm apart).

Residual current device (RCD): If the heating system should be connected via an RCD, provide a separate

RCD for this purpose (300 mA fire safety response current). Observe all applicable regulations.

CONNECTING THE TEMPERATURE SENSOR,

INTERNAL UNIT

Install outside temperature sensor T2.

Connect the power supply (Æ chapter 8.4.2).

Fit the safety switch.

Connect the primary heating circuit pump G2.

Install accessories.

8.1 ACCESSORY

Install Room temperature sensor T5: in the lead room of the building. Connection in accordance with (Æ

chapter 8.4.3).

Fit and connect a heater cable to the drain pipe (Æ

chapter 8.3.1) to prevent ice forming on the heat pump

drain pipe.

8.2 EMERGENCY OPERATION

The system is able to operate in emergency mode. The heat generation is taken over by the electric additional heat if the control unit experiences a fault. See the operating instructions for further information regarding emergency mode.

On the IOB board, there is a thermostat for regulating the flow temperature in emergency mode. At the factory, the thermostat is set to 35 °C. This standard setting applies to systems with underfloor heating. If a house is exclusively heated by radiators, this setting may be raised to 55 °C.

A switch, S2, is mounted on the control panel; this switch activates emergency mode.

Fig. 22 IOB board

6 720 641 467 (2010/01) 21

POWER SUPPLY

8.3 HEAT PUMP

Fig. 23 Greensource 6-9.5 wiring diagram

Phase sequence relay

Casing heater

Optional heater cable

Fuse

Fan

Compressor contactor

Compressor

MB1 Compressor overload relay

4-way valve

Soft starter

High pressure switch

Low pressure switch

Termination switch

Hot gas temperature sensor

Heating water temperature sensor, out

Heating water temperature sensor, in

T10 Condenser temperature sensor

T11 Refrigerant temperature sensor, evaporator

T12 Air temperature sensor, evaporator

Compressor type function jumper

Contact

Internal unit HWDU-151

22 6 720 641 467 (2010/01)

6 720 641 467-73.1I

8.3.1

EXTERNAL HEAT PUMP CONNECTIONS

POWER SUPPLY

Fig. 24 External connections

POWER SUPPLY

Connect the power cable to terminals L1, N and PE

(Æ chapter 8.4). Ensure connection to the same phase

sequence as the internal unit.

CAN-BUS

Connect the screened communication cable between the internal unit and the heat pump to terminals GND,

CANL, CANH and 12V (Æ chapter 5.8).

CAUTION: Do not mix up the 12V and CAN-

BUS connections!

The processors are destroyed if 12V is connected to the CAN-BUS.

Check that the four cables are connected to the contacts with the corresponding marking on the circuit board.

6 720 641 467-84.1I

6 720 641 467 (2010/01) 23

POWER SUPPLY

8.4 INTERNAL UNIT HWDU-151

8.4.1

WIRING DIAGRAM

Fig. 25 Wiring diagram

Do4 Open

Do5 Close

Electric additional heater 4.5 kW

Fuse

F21 Overheat protection

F31 Impressed current anode inside the DHW cylinder

Heating circuit pump, secondary

Heating circuit pump, primary

3-way valve

Mixer

Termination switch

Emergency switch

6 720 641 467-71.1I

Thermostat for emergency operation

Flow temperature sensor, heating

Outside temperature sensor

Cylinder temperature sensor

Room temperature sensor (accessory)

T99 Temperature sensor for emergency operation

Function jumper

Contact

Power guard (accessory)

Connect the power transformers to the incoming power supply

Heating water outlet (towards the heat pump)

6 720 641 467 (2010/01)

8.4.2

CONNECTION AT THE HEAT PUMP

1 2

POWER SUPPLY

Fig. 26 Connection diagram, heat pump - HWDU-151

Heater cable (accessory)

Primary heating circuit pump, not connected in the delivered condition

Outside temperature sensor

Room temperature sensor (accessory)

Internal unit

Power guard (accessory)

Heat pump

Transformer for the voltage supplied by the large control panel

Safety switch

Fuse:

Greensource 6: 16A

Greensource 7: 25A

Greensource 9.5: 25A

Fuse: HWDU-151: 25A

6 720 641 467-78.1I

6 720 641 467 (2010/01) 25

POWER SUPPLY

8.4.3

EXTERNAL CONNECTIONS – HWDU-151

6 720 614 056-21.1D

Fig. 27 External connections – HWDU-151

POWER SUPPLY

Connect the power cable to terminals L1, N and PE

(Æ chapter 8.4). Ensure connection to the same phase

sequence as the heat pump.

OUTSIDE TEMPERATURE SENSOR (T2)

Connect the outside temperature sensor to terminals

Ai2 and GND.

ROOM TEMPERATURE SENSOR (T5)

If you want to influence the temperature via a room temperature sensor (accessory), connect the sensor to terminals Ai4 and GND.

CAN-BUS

Connect the screened communication cable between the internal unit and the heat pump to terminals GND,

CANL, CANH and 12V (Æ chapter 5.8).

CAUTION: Do not mix up the 12V and CAN-

BUS connections!

The processors are destroyed if 12V is connected to the CAN-BUS.

Check that the four cables are connected to the contacts with the corresponding marking on the circuit board.

26 6 720 641 467 (2010/01)

CONTROL PANEL

9 CONTROL PANEL

All settings are made and possible alarms are displayed via the control panel. The control panel enables the control unit to be controlled in accordance with user requirements.

If the heat pump is supplied together with an internal unit, control panel and control unit are integrated into the internal unit.

9.1 CONTROL PANEL DISPLAY

MENU DISPLAY

6 720 616 818-04.1I

Fig. 28 Control panel HWDU-151

Display

ON and fault indicator

Menu dial

Main ON/OFF switch

STATUS LAMP

•

Lamp lights green: Switch in ON position.

•

Lamp flashes green: Switch in OFF position.

•

Lamp not lit: No voltage to control unit.

•

Lamp flashes red: an alarm has been triggered and the

alarm has not been acknowledged (Æ Chapter 14).

•

Lamp lights red: a fault has occurred. Contact the installer.

The ON and fault indicator of the control panel are located on the outside of the control panel.

MENU DIAL

The menu dial is used to navigate between the menu windows and to change the values of different settings.

The menu dial is also used to confirm selections.

SWITCH

The power switch button is used to start and switch off the heating installation.

Fig. 29

9.2 CONTROL PANEL FUNCTION

The menu dial is used to navigate the menus.

Turn the menu dial anti-clockwise to scroll down through the menus.

Turn the menu dial clockwise to scroll up through the menus.

Press the menu dial to confirm the selection, when the desired row is marked.

At the top and bottom of each sub menu there are back arrows to take you back to the previous menu.

Press the menu dial when the back arrow is marked.

9.2.1

SYMBOL OVERVIEW

Symbols for different functions and components that are in operation are displayed in the lower part of the menu window.

9 10

Fig. 30

Compressor

Fan

Electric additional heater

Power guard

DHW mode

DHW peak (pasteurisation)

Additional hot water

Time control

Heating mode

Alarm

Holiday mode

External input enabled

6 720 641 467-32.1I

6 720 616 817-24.1I

6 720 641 467 (2010/01) 27

CONTROL PANEL

9.3 MENU LEVELS

•

Menu Customer level, the most common functions.

•

Advanced menu Customer level, other functions.

•

Installer/Service Basic settings for installers or service representatives.

The system user only sees the menu points shown on both user levels. See the operating instructions for a description of these two user levels.

28 6 720 641 467 (2010/01)

INSTALLATION AND SERVICE MENU (I/S)

10 INSTALLATION AND SERVICE MENU (I/S)

CAUTION: Changes in the installation and service menu (I/S) can have severe consequences for the system.

Only qualified contractors should make adjustments in the installation and service menu (I/S).

6 720 641 467-02.1I

Fig. 31

A 4-digit access code is required to open the installation and service menu (I/S).

1. Hold down the menu dial for 5 seconds to open

Advanced menu.

2. Select Access level.

3. Enter the 4-digit access code with the menu dial and press to confirm your entry. The access code is the current date and comprises two digits for the month and two for the day (e.g. 0920 for the 20th

September). The display shows Access = service.

4. Press menu dial to open Menu. The most commonly used menu points are accessible at the user level; the menu points of the installation and service menu (I/S) are only accessible at Menu. Hold down the menu dial for 5 seconds to open Advanced menu.

5. In Advanced menu select point Access level. Enter access code 0000 to return to the user level.

120 minutes after the last entry, the control unit returns automatically to the user level.

6 720 641 467 (2010/01) 29

MENU OVERVIEW

11 MENU OVERVIEW

The Menu and Advanced menu tables show the respectively upper level of available menu points. The

Fast restart of heat pump? (only 400V)

Start up preset values are listed in tables Factory settings

(Æ chapter 15.1).

Setting the clock

Connected extra sensors

Air/Water pump in operation

Connection capacity

Manual operation?

Additional heat options

Language

Correct sensor

Fan defrost interval

Fan defrost time

Forced defrost

Block crankcase heater at high outdoor temperature

Anti-jamming mode time

Activation time alarm buzzer

T1 Set point value maximum

Display

Electrical connection

Heat pump size

Room temperature setting(T5)

Temperature increase/decrease (not T5)

Temperature increase/decrease settings

(not T5)

Extra hot water

Temperatures

Tab. 4

Limit value for V or H

Much colder/warmer, change

Colder/warmer, change

I/S

30 6 720 641 467 (2010/01)

Advanced menu

Temperature

Hot water

Temperatures

Defrost settings

Timers

Additional heat settings

Tab. 5

6 720 641 467 (2010/01)

MENU OVERVIEW

Lowest outdoor temperature

Heating system temperature

Room sensor settings (T5)

Time limited settings

External control heating

Heating season

Heating, maximum operating time at hot water demand

Shut down protection, change over hot water to heating

Compressor working area settings

Extra hot water

Hot water peak

Hot water temperature

Time control hot water

External control hot water

Hot water additional heat

Display of Temperatures, Inputs, Outputs

Correct temperature sensor

T12-T11 settings

Maximum outdoor temperature

T11 Maximum temperature

Maximum time

Delay after compressor start

Minimum time between defrosts

Compressor pressure equalisation time

4-way valve pressure equalisation time

Forced defrost

Heating cable time after defrost

Fan defrost

Timer display

Start delay

Time control additional heat

Additional heat options

Electric additional heat settings

Connected electrical capacity

Mixing valve settings

I/S

K, I/S

I/S

K, I/S

I/S

MENU OVERVIEW

Advanced menu

Setting the clock

Display

Alarm

Access level

Return to factory settings

Deactivate alarm buzzer

Program version

Connected I/O cards

Tab. 5

Set date

Set time

Contrast

Brightness

Alarm log

Alarm history

Warning log

K, I/S

I/S

K, I/S

I/S

32 6 720 641 467 (2010/01)

COMMISSIONING

12 COMMISSIONING

At the time of commissioning, complete all relevant sections of the Benchmark

Checklist located on the inside back pages of this document.

Before commissioning:

Open all radiators or underfloor heating systems.

Fill the heating system.

Vent the heating system.

Check the heating system for leaks.

When connecting a fan coil system the fans are to be started first and any shut-off valves for the fan coils fully opened.

12.1 SWITCHING ON THE HEAT PUMP

1. Switch the power supply to the heat pump on. Start the heat pump by briefly pressing the ON/OFF switch on the control panel. The available languages are displayed.

Greensource 6-9,5 kW = 6-11kW

12.2 START-UP

All functions to carry out the basic settings in the heating unit are gathered in this menu. Carry out these in turn and order.

6 720 614 056-23.1D

Fig. 32

2. Select the required display language. The selected language is automatically adopted as standard setting and will not be changed at Return to factory settings.

You can later select a different Language under Start

up in the menu.

6 720 641 467-05.1I

Fig. 35

Select function Start-up.

12.2.1 CONNECTED EXTRA SENSORS

If room temperature sensor T3 or T5 is installed, Yes must be displayed underneath menu point T3

acknowledged or T5 acknowledged.

12.2.2 AIR/WATER PUMP IN OPERATION

Internal units can also be commissioned without connected heat pump.

If no heat pump is connected:

Select No.

12.2.3 CONNECTION CAPACITY

Fig. 33

3. Select the voltage.

6 720 641 467-03.1I

6 720 641 467-04.1I

Fig. 34

4. Select the heat pump output.

6 720 641 467 (2010/01)

6 720 641 467-06.1I

Fig. 36

State total output: Setting of total connected output on the electrical additional heat. The factory setting is 13.5 kW. Change this to 4.5 kW.

Compressor mode, output limitation: Setting permitted output when the compressor is in operation. The factory setting is 50% of the setting in State total output.

Change this to 4.5 kW.

Additional heat only, output limitation: Setting permitted output when the compressor is not in operation. The factory setting is the value in State total

output.

COMMISSIONING

12.2.4 MANUAL OPERATION?

Before commissioning the heating installation, all functions can be checked, by manually starting and stopping them.

6 720 641 467-07.1I

Fig. 37

Select Yes to activate.

The function must be deactivated afterwards by selecting No on Manual

operation?.

12.2.5 ADDITIONAL HEAT OPTIONS

12.2.8 FAN DEFROST INTERVAL AND FAN DEFROST

TIME

Hot air is blown through the fan to defrost it. If the fan is at risk of freezing up, change the factory setting.

The fan defrost function is active if the value under menu point Fan defrost interval lies between 1 and 10

(standard setting = 1).

With value 1 the fan will be defrosted each time defrost is activated. With value 3 the fan will be defrosted every third time defrost is activated.

Select 0 under Fan defrost interval if you want to disable this function.

Select the duration of fan defrost under menu point

"Fan defrost time". Minimum = 1 minute and maximum

= 5 minutes. Factory setting = 1 minute.

The temperature limit for fan defrost is set to -5 °C.

Below this temperature, the fan is not defrosted. You can change this value in Advanced menu under Fan

defrost.

The compressor stops for up to 60 s when defrosting is activated or deactivated.

6 720 641 467-08.1I

Fig. 38

To block the start of compressor and fan:

Select Additional heat only?.

The function Block additional heat? blocks the additional heat function, but not during alarm mode, hot water peak, extra hot water or operation with additional heat only.

Block additional heat? normally this is not recommended.

12.2.9 FORCED DEFROST

The Forced defrost function is used to ignore all defrost timer and temperature settings. However, the temperature T11 (evaporator refrigerant temperature) must be below the selected defrost stop temperature.

12.2.6 LANGUAGE

To change the language to one other than that selected when the heat pump was first started:

Select Language.

The selected language automatically becomes the factory setting and is therefore not changed when

Return to factory settings.

12.2.7 CORRECT SENSOR

All sensors can be corrected a maximum of 5 °C up or down. The value is given directly in °C. Sensors should only be corrected in exceptional cases.

Fig. 39

Activate Forced defrost:

In the display, select Yes.

Select Save.

6 720 641 467-09.1I

34 6 720 641 467 (2010/01)

COMMISSIONING

12.2.10 BLOCK CRANKCASE HEATER AT HIGH

OUTDOOR TEMPERATURE

The crankcase temperature is monitored by temperature sensor T12. The crankcase heating inside the compressor stops if the outside temperature exceeds the selected value. The crankcase heater is active when the compressor is idle and the outside temperature falls below the selected value.

Set the temperature value:

Set the required value by turning the menu dial.

Select Save.

Factory setting = 10 °C. Minimum = 5 °C and maximum =

20 °C.

12.2.11 ANTI-JAMMING MODE TIME

Pumps G1 and G2, the 3-way valve VXV and the fan start at the set time for one minute following one day idle.

Factory setting = 2, which represents 02:00 h. Minimum

= 0, maximum = 23

12.2.12 ACTIVATION TIME ALARM BUZZER

Set the delay between an alarm occurring and the alarm signal becoming audible. 1 min is set at the factory.

Maximum value = 10 min.

12.2.13 T1 SET POINT VALUE MAXIMUM

12.2.16 HEAT PUMP SIZE

6 720 641 467-12.1I

Fig. 42

Set the heat pump output. For a heat pump output between 6 and 11 kW:

Select 6-11kW

For an output between 12 and 17 kW:

Select 12-17kW

Greensource 6-9,5 kW = 6-11kW

12.2.17 ALARM DURING START-UP

An alarm may be triggered during start-up if a temperature is captured in the condenser that is too low. The reason for this is that water has been filled in that is too cold (lower than +5 °C).

6 720 641 467-10.1I

Fig. 40

This value is set to a maximum = 80 °C in the delivered condition. Set the value correspondingly lower if only an underfloor heating system is installed.

12.2.14 DISPLAY

In this menu, you can select the Contrast and the

brightness of the display. In the delivered condition,

Contrast is set to 5 and brightness to 10.

12.2.15 ELECTRICAL CONNECTION

6 720 641 467-11.1I

Fig. 41

Select the heat pump voltage, 230V or 400V.

6 720 614 056-32.1I

Fig. 43 Sight glass

Check the sight glass in the heat pump. Bubbles may be visible in the sight glass for a few minutes after start-up.

No bubbles should form after a few minutes. If bubbles continue to form, this is a fault indicating a lack of refrigerant. Under certain operating conditions, bubbles can form even if there is no refrigerant shortage.

12.3 OTHER SETTINGS

Scroll through the menu points for heating and DHW settings in sequence under Menu and Advanced menu.

If required, adjust the settings of these menu points as required for the local system.

Menu Lowest outdoor temperature enables the lowest outside temperature to be set to between -35 and 0 °C; the factory setting is -20 °C. The selected temperature influences the r.h. value of the heating curve. The heating curve may need to be adjusted if Lowest

outdoor temperature was changed.

6 720 641 467 (2010/01) 35

COMMISSIONING

Adjust the heating curve. For example, the heating settings for underfloor heating systems could be below the factory default settings. Set a suitable H and V value.

6 720 616 818-09.1I

Fig. 44

The heat pump stops at outdoor temperatures lower than approx -20 °C. The heating installation then goes over to additional heat mode only.

Temperature sensor T3 limits the maximum flow temperature if the electric additional heater provides the total heat input. Therefore change the H value of the heating curve if it is set higher than 62 °C.

6 720 641 467-15.1I

Fig. 45

Permitting a higher flow temperature:

In the installation and service menu (I/S) select

Advanced menu.

Select Additional heat settings.

Select Electric additional heat settings.

Select T3 Stop temperature.

Set the required value. Factory setting = 62 °C and maximum = 70 °C.

Install a mixer if a setting higher than 65 °C is selected.

The table of Factory settings (Æ Chapter 15.1) shows

all functions, which can be adjusted by customer and installer. Go through the table and check if any further values need changing.

36 6 720 641 467 (2010/01)

COMMISSIONING

12.4 POST COMMISION CHECKING

To safeguard the optimum system function, check the temperature on the hot side of the heat pump. The recommended value lies between 5 and 10 °C.

Checking the temperature differential:

Check the displayed values for temperature sensor T8

(Off) and temperature sensor T9 (On).

The temperature differential should be between 5 and

7 °C if you commission the system at an outside temperature below 0 °C.

The temperature differential should be between 8 and

10 °C if you commission the system at an outside temperature in excess of 15 °C.

Condition Green LED

Normal Conditions

Mains voltage <90VAC

Flash

Red LED

OFF

The flow rate in the heating system must be adequate to fully heat all radiators. This maximises the heat radiating surface and keeps the flow temperature low.

Vent the heating system after the test run and top up

with water if required (Æ chapter 7.10).

12.4.1 SOFT STARTER

The soft starter has two indication LEDs on the cover.

The green LED indicates the status of the power supply and the red LED indicates an alarm condition.The soft starter is located in the electrical box of the heat pump.

Mains voltage <190VAC;

>1 sec (running condition)

Mains voltage restored

(>190VAC)

Overcurrent >80A for 1 sec.

Flash (2.5 Hz)

Flash (0,25 Hz)

Effect

Soft starter prevents the start

Prevented operation as long as Mains voltage

<190VAC

Prevented operation for 5 min then restart

Prevented operation for 5 min then restart attempt.

If still overcurrent after second attempt prevented until manualy reset.

Tab. 6 Soft starter

12.4.2 SYSTEM FLOW

For the installation to perform at its best, it is important to check the flow on the hot side of the heat pump.

Usually, the heat carrier pump has a speed selector switch. This must be set correctly for the pressure drop in the system. A recommended temperature difference across the heat pump on the hot side is between 5-10ºC.

The nominal flows provided in Technical information shows a difference of 7ºC in operating mode +7/45ºC.

Check this by reading the sensors T9 (heat transfer fluid in) and T8 (heat transfer fluid out). When commissioning is carried out at a low outdoor temperature (below 0ºC) the temperature difference should be between 5ºC and

7ºC. When commissioning is carried out at an outdoor temperature above 15ºC the temperature difference must be between 8ºC and 10ºC. The flow through the heating system should be sufficient to keep the whole radiator warm and thereby increase the heat emitting surface. This means that the flow temperature is kept low. After testing, vent the heating system again and top up with cold water if necessary. See Filling the heating system.

6 720 641 467 (2010/01) 37

TIMER FUNCTIONS

13 TIMER FUNCTIONS

6 720 641 467-01.1I

Fig. 46

There are a number of timers in the control unit. The statuses for these are shown in the menu Timers.

EXTRA HOT WATER

Displays the remaining time for requested extra hot water.

ADDITIONAL HEAT START

Displays the countdown of the timer for delay of additional heat.

MIXING VALVE CONTROL DELAY

Displays the time that the mixing valve function is delayed after the additional heat timer has counted down.

ALARM MODE DELAY

Displays the remaining time until the additional heat is activated when an alarm is triggered.

COMPRESSOR START

Displays remaining time of compressor start delay.

DELAY BEFORE DEFROST

Indicates the remaining time until defrost is activated.

T12 - T11 REACHED TEMPERATURE DIFFERENCE

Indicates the remaining time for the deviation from the calculated defrost set value. The indicated time starts if the temperature differential between T12 and T11 exceeds the set value for defrost. Defrost will be enabled after the time has expired if the temperature differential is permanently above the set value for defrost.

To enable defrost, the Delay before defrost must also have expired.

DEFROST

Indicates the remaining time until defrost is activated for the evaporator.

HEATING CABLE

Indicates the remaining time until the heater cable in the heat pump drain pipe is activated.

HEATING, MAXIMUM OPERATING TIME AT HOT

WATER DEMAND

Displays the remaining time before the maximum time in heating mode is reached if there is a simultaneous hot water requirement.

HOT WATER, MAXIMUM OPERATING TIME AT

HEATING SYSTEM DEMAND

Displays the remaining time before the maximum time for hot water production is reached if there is a simultaneous heating requirement.

HEATING SEASON CHANGE DELAY

Indicates the remaining time before the heating season is activated in the heat pump.

BLOCK LOW PRESSURE SWITCH

Indicates the remaining time until the low pressure switch is blocked.

BLOCKING ROOM SENSOR INFLUENCE

Indicates the remaining time until the room temperature sensor influence is blocked.

HOT WATER PEAK

Indicates the remaining time until the DHW peak is activated.

38 6 720 641 467 (2010/01)

ALARM FUNCTIONS AND DISPLAYS

14 ALARM FUNCTIONS AND DISPLAYS

After servicing, complete the relevant

Service Interval Record section of the

Benchmark Checklist located on the inside back pages of this document.

Menu Alarms contains the following:

•

Alarm log

•

Alarm history

•

Warning log

14.2 WARNING LOG

The alarm log and the warning log stores alarms and warnings in chronological order.

Delete Warning log and Alarm log after commissioning has been completed.

14.3 EXAMPLE OF AN ALARM:

When an alarm is triggered, an alarm window is displayed and a warning signal sounds. The alarm window displays the alarm causes and the time and date that the alarm occurred.

6 720 641 467-16.1I

Fig. 47

All alarm and warning messages are described in the operating instructions.

The user menu enables access to the alarm information in the alarm log.

The installation and service menu (I/S) also enables access to the following menu points:

•

Delete alarm log?

•

Information regarding the Alarm history

•

Information regarding the Warning log

•

Delete warning log?

14.1 ALARM HISTORY

ALARM INFORMATION

Alarms are stored in chronological order. Turn the menu dial to read off all information about the most recent alarm, continuing to turn will show the previous alarm.

6 720 641 467-17.1I

Fig. 48

Alarm information consists of a heading and then detailed information about the time, temperatures of all sensors and status for each output at the alarm point.

6 720 641 467-19.1I

Fig. 49

If the menu dial is pushed when Acknowledge is marked, the alarm symbol goes out in the menu window and in the alarm log and the warning signal is muted. The heat pump starts again within 15 minutes if heating is required.

The alarm symbol continues to be displayed if a fault is not remedied. The ON and fault indicators change from flashing red to constant red indications. Every alarm is stored in the fault log. Active alarms are indicated by the alarm symbol.

14.4 DIMMED MENU DISPLAY

14.4.1 POSSIBLE CAUSE 1: BLOWN FUSE IN THE

HOUSE’S FUSE BOX/DISTRIBUTION BOX.

Check the fuses in the house’s fuse box.

Replace the fuse / reset the circuit breaker if necessary.

The heat pump automatically returns to operating mode within 15 minutes after the fault has been rectified.

14.4.2 POSSIBLE CAUSE 2: AN MCB IN THE

INTERNAL UNIT HAS TRIPPED.

Notify your customer service.

14.5 EMERGENCY OPERATION

An emergency switch is located at the top of the electric box of the internal unit. In standard mode this switch illuminates green. Emergency mode is activated automatically when the required temperature is selected simultaneously. The emergency switch continues to

6 720 641 467 (2010/01) 39

ALARM FUNCTIONS AND DISPLAYS

illuminate. Emergency mode can also be selected manually. For this, activate the switch. The lamp inside the switch extinguishes.

In emergencies heat generation is covered by the electric additional heater. This enables heat to be provided until the customer service remedies the fault.

Emergency mode must not be confused with

Alarm mode, which means that the heat pump stops due to an active alarm. Heating production is then still controlled by the control unit.

14.6 OVERHEATING PROTECTION

A reset button is located inside the electric box of the internal unit to reset the overheat protection of the electric additional heater. Generally, this overheat protection does not respond.

Reset the overheat protection by pushing in the button firmly.

14.7 FILTER

The filter prevents particles and dirt from entering the heat pump interior. Over time, the filter can become blocked and must be cleaned.

Fit the filter into the heat pump return.

6 720 614 050-34.1D

Fig. 50

Filter

Locking ring

Plug

Cleaning the filter:

Switch off the heat pump with the ON/OFF switch.

Remove the valve and plug.

Remove the locking ring that retains the filer inside the valve. For this use the pliers supplied.

Remove the filter from the valve and flush the filter with water.

Refit the filter, locking ring and plug.

Open the valve and start the heat pump via the ON/

OFF switch.

14.8 ALL ALARMS AND WARNING

WINDOWS

An alarm can occur temporarily due to various reasons.

However, there is never a risk involved in resetting an alarm. All the alarms that can appear in the menu display are described in this section. The descriptions give an idea about the nature of the alarm and what can be done to rectify it.

The alarm log (see Advanced menu) shows the alarms and warnings that have occurred.

14.8.1 LIST OF ALL ALARMS:

•

Tripped low pressure switch

•

Tripped high pressure switch

•

Failure / Short circuit on sensor.

•

Faulty function in 4-way valve

•

T6 High hot gas temperature

•

Fault on electric additional heat

•

T8 High flow temperature.

•

Low temperature in condenser

•

Tripped motor cut-out

•

Air/Water pump not connected

•

Fault in I/O card control cabinet/electric boiler

•

Tripped motor cut-out fan

14.8.2 LIST OF ALL WARNINGS:

•

Is the heat pump fused for this output?

•

High temperature difference heat transfer fluid

14.8.3 LIST OF ALL INFORMATION WINDOWS

•

Heat pump is now working at its highest permitted temperature

•

Add. heat is now working at its highest permitted temperature

•

This setting means that additional heat can take over operation

•

Temporary stop of hot water production

•

Temporary stop of compressor operation

40 6 720 641 467 (2010/01)

14.9 ALARM WINDOW

14.9.1 TRIPPED LOW PRESSURE SWITCH

6 720 641 467-18.1I

Fig. 51

POSSIBLE CAUSE 1: EVAPORATOR BLOCKED.

Clean the evaporator.

Select Acknowledge.

Wait until the heat pump starts again.

POSSIBLE CAUSE 2: FAN BLOCKED.

Remove debris that blocks the fan.

Select Acknowledge.

Wait until the heat pump starts again.

POSSIBLE CAUSE 3: REFRIGERANT FAULT IN THE

REFRIGERANT CIRCUIT.

Check the amount of refrigerant.

Check the refrigerant circuit for tightness.

Select Acknowledge.

Wait until the heat pump starts again.

POSSIBLE CAUSE 4: FAULTY DEFROST SYSTEM OR

FAN MOTOR.

Check the function of the 4-way valve. Manually switch the 4-way valve in the corresponding menu point at the control panel on and off.

Check the defrost settings.

Check the fan motor function.

Select Acknowledge.

Wait until the heat pump starts again.

POSSIBLE CAUSE 5: EXPANSION VALVE FAULTY.

Check expansion valve.

Check for overheating and excessive cooling.

Select Acknowledge.

Wait until the heat pump starts again.

14.9.2 TRIPPED HIGH PRESSURE SWITCH

ALARM FUNCTIONS AND DISPLAYS

POSSIBLE CAUSE 1: AIR IN THE HEATING SYSTEM.

Select Acknowledge.

Check whether air is in the heating system.

Fill the heating system and vent if required.

POSSIBLE CAUSE 2; BLOCKED PARTICLE FILTER:

Select Acknowledge.

Check filter.

Clean filter if required (Æchapter 14.7).

POSSIBLE CAUSE 3: INADEQUATE FLOW RATE

ACROSS THE HEAT PUMP.

Select Acknowledge.

Check whether the heat pump has stopped (Æ Fig. 53 on page 41).

Check that all the valves are open. The thermostat valves in heating systems should be fully open and in floor heating systems at least half of the coils should be fully open.

Select a higher speed for the heat transfer medium pump (G2). Also set a higher speed for the heating circuit pump (G1), as it needs to run with a higher speed than the heat transfer medium pump.

6 720 641 935-08.1I

Fig. 53 Connection chamber, internal unit

Heating circuit pump, primary

Heating circuit pump, secondary

14.9.3 FAILURE / SHORT CIRCUIT ON SENSOR

6 720 641 467-20.1I

Fig. 54

All sensors connected to the heating installation can give an alarm in the event of a fault. In the example, it is sensor T3, hot water, which has given an alarm. All sensors give alarms in the same way.

Fig. 52

6 720 641 467-19.1I

6 720 641 467 (2010/01) 41

ALARM FUNCTIONS AND DISPLAYS

PROBABLE CAUSE 1; TEMPORARY FAULT:

Wait and see.

PROBABLE CAUSE 2; DEFECTIVE SENSOR OR

INCORRECT CONNECTION:

Check the temperature sensor connection.

Check the temperature sensor resistance (Æ

chapter 15.4).

14.9.4 FAULTY FUNCTION IN 4-WAY VALVE

Possible cause 1: Overheat protection of the additional heater has tripped.

Select Acknowledge.

Reset the overheat protection on the additional

heater (ÆChapter 14.6).

14.9.7 T8 HIGH FLOW TEMPERATURE

6 720 641 467-21.1I

Fig. 55

POSSIBLE CAUSE 1: 4-WAY VALVE FAULTY.

Select Acknowledge.

Check the function of the 4-way valve. Manually switch the 4-way valve in the corresponding menu point at the control panel on and off.

14.9.5 T6 HIGH HOT GAS TEMPERATURE

6 720 641 467-22.1I

Fig. 56

POSSIBLE CAUSE 1: OCCASIONALLY EXCESSIVE

TEMPERATURE CAUSED BY UNUSUAL OPERATING

CONDITION.

Select Acknowledge.

Check the temperature differential between temperature sensors T8 and T9 in the heat pump (Æ

chapter 12.4).

POSSIBLE CAUSE 2: EXCESSIVE COMPRESSOR

OPERATING TEMPERATURE.

Select Acknowledge.

Check for overheating.

14.9.6 FAULT ON ELECTRIC ADDITIONAL HEAT

6 720 641 467-24.1I

Fig. 58

Temperature sensor T8 is fitted inside the heat pump.

This stops the compressor for safety reasons as soon as the flow temperature exceeds the selected value.

PROBABLE CAUSE 1; INSUFFICIENT FLOW OVER THE

HEAT PUMP:

Select Acknowledge.

Check whether the primary heating circuit pump has

stopped (Æ Fig. 53, [1], page 41)..

Check that all the valves are open. The thermostat valves in heating systems should be fully open and in floor heating systems at least half of the coils should be fully open.

Select a higher speed for the heat transfer medium pump (G2). Also set a higher speed for the heating circuit pump (G1), as it needs to run with a higher speed than the heat transfer medium pump.

POSSIBLE CAUSE 2; BLOCKED PARTICLE FILTER:

Select Acknowledge.

Check filter.

Clean filter if required (Æchapter 14.7).

14.9.8 LOW TEMPERATURE IN CONDENSER

Fig. 57

6 720 641 467-23.1I

6 720 641 467-25.1I

Fig. 59

The alarm is triggered because the temperature inside the heat pump is too low. Initially, a warning is issued.

Following four warnings within two hours, an alarm is triggered.

POSSIBLE CAUSE 1: AIR IN THE HEATING SYSTEM.

Select Acknowledge.

Check whether air is in the heating system.

42 6 720 641 467 (2010/01)

Fill the heating system and vent if required.

POSSIBLE CAUSE 2; BLOCKED PARTICLE FILTER:

Select Acknowledge.

Check filter.

Clean filter if required (Æchapter 14.7).

POSSIBLE CAUSE 3: PRIMARY HEATING CIRCUIT

PUMP FAULT.

Check whether the primary heating circuit pump has

stopped (Æ Fig. 53, [1], page 41)..

POSSIBLE CAUSE 4: INADEQUATE/NO FLOW RATE

ACROSS THE HEAT PUMP.

Select Acknowledge.

Check whether the primary heating circuit pump has

stopped (Æ Fig. 53, [1], page 41)..

Check that all the valves are open. The thermostat valves in heating systems should be fully open and in floor heating systems at least half of the coils should be fully open.

Select a higher speed for the heat transfer medium pump (G2). Also set a higher speed for the heating circuit pump (G1), as it needs to run with a higher speed than the heat transfer medium pump.

POSSIBLE CAUSE 5: INADEQUATE AMOUNT OF

WATER IN THE DOMESTIC HEATING SYSTEM.

Fill the heating system and vent if required.

14.9.9 TRIPPED MOTOR CUT-OUT

ALARM FUNCTIONS AND DISPLAYS

14.9.10 HEAT PUMP NOT CONNECTED

Communication error between the internal unit and the heat pump.

Check CAN-BUS.

14.9.11 FAULT AT THE I/O BOARD, INTERNAL UNIT

CONTROL BOARD

Internal communication error in the internal unit.

Check whether the LED at the I/O board is flashing.

14.9.12 TRIPPED MOTOR CUT-OUT FAN

6 720 641 467-27.1I

Fig. 61

POSSIBLE CAUSE 1: OCCASIONAL FAULT OR

ELECTRICITY NETWORK OVERLOADED.

Select Acknowledge.

Wait until the heat pump starts again.

Notify customer service if the alarm occurs frequently.

Possible cause 2: Power supply to the fan failed.

Contact the dealer.

14.10 WARNING WINDOW

14.10.1 HIGH TEMPERATURE DIFFERENCE HEAT

TRANSFER FLUID

6 720 641 467-26.1I

Fig. 60

POSSIBLE CAUSE 1: OCCASIONAL FAULT OR

ELECTRICITY NETWORK OVERLOADED.

Select Acknowledge.

Wait until the heat pump starts again.

POSSIBLE CAUSE 2: AMPERAGE (A) SET TOO LOW AT

THE OVERLOAD RELAY.

Change setting to its correct value.

POSSIBLE CAUSE 3: CONTACTOR, OVERLOAD RELAY

OR ELECTRICAL CONNECTION FAULT.

Check components for faults.

POSSIBLE CAUSE 4: COMPRESSOR FAULT.

Check the compressor function.

6 720 641 467-28.1I

Fig. 62

This warning window is displayed when the temperature difference between sensors T8 and T9 becomes too high.

PROBABLE CAUSE 1; INSUFFICIENT FLOW OVER THE

HEAT PUMP:

Select Acknowledge.

Check whether the primary heating circuit pump has

stopped (Æ Fig. 53, [1], page 41)..

Check that all the valves are open. The thermostat valves in heating systems should be fully open and in floor heating systems at least half of the coils should be fully open.

6 720 641 467 (2010/01) 43

ALARM FUNCTIONS AND DISPLAYS

Select a higher speed for the primary heating circuit pump (G2). Also set a higher speed for the heating circuit pump, as it needs to run with the same or a higher speed than the primary heating circuit pump.

POSSIBLE CAUSE 2; BLOCKED PARTICLE FILTER:

Select Acknowledge.

Check filter.

Clean filter if required (Æchapter 14.7).

14.11 INFORMATION FROM THE HEAT

PUMP

14.11.1 HEAT PUMP IS NOW WORKING AT ITS

HIGHEST PERMITTED TEMPERATURE

6 720 641 467-29.1I

Fig. 63

Temperature sensor T9 is fitted inside the heat pump.

This stops the compressor for safety reasons as soon as the return temperature is too high. The limit is approx.

59 °C.

PROBABLE CAUSE 1; THE HEAT SETTING IS SET SO

HIGH THAT THE HEATING SYSTEM’S RETURN

TEMPERATURE IS TOO HIGH:

Reduce the temperature setting.

PROBABLE CAUSE 2; THE HOT WATER TEMPERATURE

IS SET TOO HIGH:

Set a lower DHW temperature.

PROBABLE CAUSE 3; THE UNDER FLOOR HEATING

SYSTEM OR RADIATOR VALVES ARE CLOSED:

Open the valves.

PROBABLE CAUSE 4; THE FLOW ACROSS THE HEAT

PUMP IS GREATER THAN THE FLOW IN THE HEATING

SYSTEM:

Check the speed of heating circuit pump (G1). The speed of the heating circuit pump must be higher than the speed of the heat transfer medium pump (G2).

14.11.2 ADD. HEAT IS NOW WORKING AT ITS HIGHEST

PERMITTED TEMPERATURE

Temperature sensor T9 is fitted inside the heat pump.

This stops the compressor for safety reasons and limits the electric additional heater as soon as the return temperature is too high. The limit for the electric additional heater is approx. 58 °C.

PROBABLE CAUSE 1; THE HEAT SETTING IS SET SO

HIGH THAT THE HEATING SYSTEM’S RETURN

TEMPERATURE IS TOO HIGH:

Reduce the temperature setting.

14.11.3 THIS SETTING MEANS THAT ADDITIONAL

HEAT CAN TAKE OVER OPERATION

Information appears if Electric cassette limitation start

temperature, Electric cassette forced shut off, Mixing

valve limitation start temperature or Mixing valve force

close are set more than 1 degree lower than T9 high return temperature.

POSSIBLE CAUSE 1: THE INSTALLER SETS A HIGH

VALUE FOR ONE OF THE ABOVE SETTINGS.

Select a lower value.

14.11.4 TEMPORARY STOP OF HOT WATER

PRODUCTION

In case of DHW operation and if the temperature captured ar senor T6 is higher than for envelope stop

(factory-set value: 117 °C), this message is issued until

T3 has fallen 5 K below the temperature which was captured by T3 when the message appeared. This message stops the compressor for DHW heating.

POSSIBLE CAUSE 1: EXCESSIVE TEMPERATURE

DIFFERENTIAL BETWEEN EVAPORATION AND

CONDENSING. THE COMPRESSOR PERMITS THE

ADDITIONAL HEATER TO SUPPLY THE CORRECT

TEMPERATURE IF IT CANNOT DO SO ON ITS OWN.

POSSIBLE CAUSE 2: LOW REFRIGERANT LEVEL.

14.11.5 TEMPORARY STOP OF COMPRESSOR

OPERATION

Could occur for two different reasons:

1. If the temperature captured by sensor T2 is lower than the lowest temperature envelope. Switches back when the temperature captured by sensor T2 is higher than the lowest temperature envelope for 30 minutes.

2. In case of heating operation and if the temperature captured by sensor T6 is higher than for envelope stop (factory-set value: 117 °C). Switches back when the temperature captured by sensor T2 has risen by 2

The compressor stops and the additional heater starts.

44 6 720 641 467 (2010/01)

POSSIBLE CAUSE 1: OUTSIDE TEMPERATURE LOWER

THAN -20 °C.

POSSIBLE CAUSE 2: EXCESSIVE TEMPERATURE

DIFFERENTIAL BETWEEN EVAPORATION AND

CONDENSING. THE COMPRESSOR PERMITS THE

ADDITIONAL HEATER TO SUPPLY THE CORRECT

TEMPERATURE IF IT CANNOT DO SO ON ITS OWN.

POSSIBLE CAUSE 3: LOW REFRIGERANT LEVEL.

ALARM FUNCTIONS AND DISPLAYS

6 720 641 467 (2010/01) 45

TECHNICAL INFORMATION

15 TECHNICAL INFORMATION

15.1 FACTORY SETTINGS

The table displays the factory values (F value) of the settings that you, as a customer, (K) can change via the customer menus Menu and Advanced menu.

The menu points in the installation and service menus (I/

S) listed in the following table become accessible to the installer after changing the Access level, either under menu or under Advanced menu.

Fast restart of heat pump?

Start up

_“_\Setting the clock

_”_\_”_\Set date

_”_\_”_\Set time

_”_\Connected extra sensors

_”_\_”_\T5 confirms (room temperature sensor T5)

_”_\Air/Water pump in operation

_”_\Connection capacity (electric element)

_”_\_”_\State total output

_”_\_”_\Compressor mode, output limitation

_”_\_”_\Additional heat only, output limitation

_”_\Manual operation?

_”_\Additional heat options

_”_\_”_\Additional heat only?

_”_\_”_\Block additional heat?

_”_\Language

_”_\Correct sensor

_”_\Fan defrost interval

_”_\Fan defrost time

_”_\Forced defrost

_”_\Block crankcase heater at high outdoor temperature

_”_\Anti-jamming mode time

_”_\Alarm buzzer signal length

_”_\T1 Set point value maximum

_”_\Display

_”_\_”_\Contrast

_”_\_”_\Brightness

Tab. 7

Level

I/S

F-value

YY-MM-DD hh:mm:ss

Yes

13.5 kW

4.5/6.75 kW

9.0/13.5 kW

02:00

1 min.

80 °C

Selected

1 ggr

1.0 min.

10.0 °C

_”_\Electrical connection

_”_\Heat pump size

Room temperature setting (T5)

Temperature increase/decrease (T5)

Temperature increase/decrease settings (T5)

_”_\Limit value for V or H

_”_\Change when much colder/warmer

_”_\Change when colder/warmer

Extra hot water

Temperatures

Tab. 7

I/S

Advanced menu

Temperature

_”_\Lowest outdoor temperature

_”_\Heating system temperature

_”_\_”_\Heat curve

Level

I/S

F-value

230V/400V

6-11kW/

12-17kW

20°C

2 °C

0 h

F-value

20 °C

V=20.0 °C

H=45.6 °C

_”_\_”_\Hysteresis

_”_\_”_\Maximum

_”_\_”_\Minimum

_”_\_”_\Time factor

_”_\Room sensor settings (T5)

_”_\_”_\Room temperature setting

_”_\_”_\Room sensor influence

_”_\_”_\_”_\Change factor

_”_\_”_\_”_\Blocking time

_”_\Time limited settings

_”_\_”_\Time control heating

_”_\_”_\_”_\Day and time

_”_\_”_\_”_\Change in temperature

_”_\_”_\Holiday

_”_\_”_\_”_\Date

_”_\_”_\_”_\Change in temperature

_”_\_”_\Remote control

_”_\_”_\_”_\Remote control

_”_\_”_\_”_\Change in temperature

_”_\External control heating

Tab. 8

16 °C

4 °C

20 °C

5.0

4 h

Off

-10 °C

Off

-10 °C

Off

0 °C

Off

46 6 720 641 467 (2010/01)

Advanced menu

_”_\Heating season

_”_\_”_\Heating season limit

_”_\_”_\Delay

_”_\_”_\Direct start limit

_”_\Heating, maximum operating time at hot water demand

_”_\Shut down protection, change over hot water to heating

_”_\Compressor working area settings

_”_\_”_\Delay after temporary stop

Hot water (T3)

_”_\Extra hot water

_”_\_”_\Number of hours

_”_\_”_\Stop temperature

_”_\Hot water peak

_”_\_”_\Interval

_”_\_”_\Start time

_”_\_”_\Stop temperature

_”_\Hot water temperature

_”_\_”_\_”_\T3 Start temperature

_”_\_”_\_”_\T8 Stop temperature

_”_\_”_\_”_\T9 Stop temperature

_”_\_”_\Additional heat only?

_”_\_”_\_”_\T3 Stop temperature

_”_\_”_\_”_\T3 Hysteresis

_”_\_”_\Hot water, maximum operating time at heating demand

_”_\Time control hot water

_”_\Hot water additional heat

_”_\_”_\T3 Start value offset

_”_\_”_\T3 Hysteresis

Temperatures

_”_\Correct sensor

Defrost settings

_”_\T12 - T11 settings (6-11 kW)

_”_\_”_\Time for reached temperature difference

_”_\_”_\Difference at +10 °C

_”_\_”_\Difference at 0 °C

_”_\_”_\Difference at -10 °C

_”_\T12 - T11 settings (12-17 kW)

Tab. 8

Level

I/S

F-value

30 min.

65 °C

0 days

03:00

65.0 °C

52 °C

59 °C

54 °C

60 s

12 °C

8 °C

6 °C

18 °C

4 h

10 °C

20 min.

300 s

56 °C

1.0 °C

30 min.

Off

5.0 °C

2.0 °C

6 720 641 467 (2010/01)

TECHNICAL INFORMATION

Advanced menu

_”_\_”_\Time for reached temperature difference

_”_\_”_\Difference at +10 °C

_”_\_”_\Difference at 0 °C

_”_\_”_\Differential at -10 °C

_”_\Maximum outdoor temperature

_”_\T11 Maximum temperature

_”_\Maximum time

_”_\Delay after compressor start

_”_\Minimum time between defrosts

_”_\Compressor pressure equalisation time

_”_\4-way valve pressure equalisation time

_”_\Forced defrost

_”_\Heating cable time after defrost

_”_\Fan defrost

_”_\_”_\Fan defrost interval

_”_\_”_\Fan defrost time

_”_\_”_\Temperature limit

Timers

Additional heat settings

_”_\Start delay

_”_\Time control additional heat

_”_\Additional heat options

_”_\_”_\Additional heat only?

_”_\_”_\Block additional heat?

_”_\Electric additional heat settings

_”_\_”_\Power guard

_”_\_”_\_”_\Power guard

_”_\_”_\_”_\Supply voltage

_”_\_”_\_”_\Main fuse

_”_\_”_\_”_\Display/Correction of Current transformer

Level

I/S

_”_\_”_\_”_\Current margin

_”_\_”_\_”_\Time from tripped power guard to possible reconnection

_”_\_”_\Connection capacity (electric element)

I/S

_”_\_”_\_”_\State total output

_”_\_”_\_”_\Compressor mode, output limitation

_”_\_”_\_”_\Additional heat only, output limitation

Tab. 8

I/S

F-value

60 s

0 s

15 min.

1 ggr

1.0 min.

-5 °C

60 min.

Off

400 V

16 A

.0 A

0.5 A

60 s

13.5 kW

4.5/6.75 kW

9.0/13.5 kW

8 °C

4 °C

2 °C

13 °C

20 °C

15 min.

10 min.

30 min.

60 s

TECHNICAL INFORMATION

Advanced menu

_”_\_”_\Ramp time increase

_”_\_”_\Ramp time decrease

_”_\Mixing valve settings

_”_\_”_\Mixing valve delay

_”_\_”_\Neutral zone

Level

I/S

_”_\_”_\Running time extension

_”_\_”_\_”_\Increase signal extension

_”_\_”_\_”_\Mixing valve limitation start temperature

I/S

_”_\_”_\_”_\Decrease signal extension

_”_\_”_\Additional heat maximum temperature

I/S

_”_\_”_\_”_\Mixing valve force close

_”_\_”_\Limitation at temperature increase

_”_\_”_\Limitation time

Setting the clock

Set date

Set time

Display

Contrast

I/S

K, I/S

K, I/S Brightness

Alarm

_”_\Alarm log

_”_\_”_\Delete alarm log?

_”_\Warning log

_”_\_”_\Delete warning log?

Access level

Return to factory settings

I/S

Deactivate alarm buzzer

Tab. 8

I/S

K, I/S

F-value

20 min.

10 min.

20 min.

1.0 °C

57 °C

58 °C

Yes

20 s

YY-MM-DD hh:mm:ss

K(0)

48 6 720 641 467 (2010/01)

TECHNICAL INFORMATION

15.2 TECHNICAL DATA

Heat pump

Output/input at +7/35°

Output/input at +2/35°

COP at +7/35º

COP at +2/35º

Nominal flow rate, refrigerant

Internal pressure drop, refrigerant

Air flow rate

Power consumption, fan motor

Power supply

Fuse rating

3) kW kW l/s kPa m

5,43 / 1,50

4,56 / 1,45

3,62

3,15

0.19

7,27 / 2,20

6,13 / 2,16

3,31

2,83

0.29

2200

0.44

230V 1N~ 50Hz

9.5

8,36 / 2,45

7,14 / 2,41

3,41

2,96

0.34

Starting current (softstart)

Compressor

Compressor oil

Lowest/highest outgoing heat carrier temperature

Refrigerant mass R-407C

Connection, refrigerant

23,43 30,56

Scroll

FV 50S

20/65

32,05

°C kg 2.5

2.6

Hose 1 inch internal thread

2.95

Defrost system

Operating temperature

Dimensions (WxDxH)

Weight

°C mm kg 140

Hot gas with 4-way valve

-20 – +35

840 x 665 x 1223

144

Outer casing Zinc-plated painted sheet steel

Tab. 9 Specification

1) Output details in accordance with EN 14511.

2) Output details in accordance with EN 14511.

3) Safety fuse type gL-gG or MCB type C.

4) Global warming potential; GWP

100

=1526

5) Tested at -17°C according to the European standard EN 14511-4.

6) Dimensions excl. adjustable feet; subject to adjustment plus 20 mm (minimum) - 30 mm (maximum).

152

6 720 641 467 (2010/01) 49

TECHNICAL INFORMATION

Internal unit

Output of the internal unit

Circulation pump rating

Power supply kW kW

HWDU

4.5

0.2

230V 1N~

50Hz

Maximum power consumption

Fuse rating

1) kW 4.7

Maximum operating pressure

AT bar

(MPa)

2.5

(0.25)

Available capacity, DHW cylinder

CH buffer volume

Expansion vessel l l l

151

Expansion vessel, pre-charge pressure bar

(MPa)

°C

(0.1)

90 Overheat protection

Min. flow rate, heating system

Heating circuit pump, secondary G1"

Heating circuit pump, primary

G2" l/s 0

Wilo Star RS 25/6-3

Dimensions (W×D×H)

2) mm

600×615×

1660

122 Dry weight kg

Wet weight kg 347

Tab. 10 Internal unit 290 A/W

1) aM type fuse, D characteristic MCB. Both units require a means of electrical isolation.

2) Dimensions excl. feet, supplied min 20 mm - max 30 mm depending on adjustment.

15.3 SOUND PRESSURE LEVEL

sound pressure level (dB(A))

64.9

7 64.9

9.5

64.9

Tab. 11

1) Measured in accordance with EN ISO 3743-1

15.4 TEMPERATURE SENSOR RESISTANCE

VALUES

Temperature ( °C)

– 40

– 35

– 30

– 25

– 20

– 15

– 10

– 5

0.696

0.59

85 0.503

Tab. 12 Temperature sensor test values

0.43

3.070

2.51

2.055

1.696

1.405

1.17

0.98

0.824

19.77

15.28

11.90

9.33

7.37

5.87

4.70

3.79

k Ω

154.30

111.70

81.70

60.40

45.10

33.95

25.80

50 6 720 641 467 (2010/01)

TECHNICAL INFORMATION

15.5 SUPPLEMENTARY TECHNICAL

INFORMATION

Maximum water supply pressure to the pressure reducing valve

Operating pressure DHW

Expansion vessel charge pressure

Expansion valve setting

Maximum primary working pressure

Set opening pressure of the combined temperature and pressure relief valve

Expansion vessel, 19 Litres

Tab. 13 Supplementary technical information

Cylinder reheat times, Inner cylinder 151 Litres of DHW.

Full volume heat-up from 15°C to 55°C with a primary flow temperature of 60°C takes 2 hours and 15 minutes.

Full volume re-heat to 55°C after 70% of the cylinders contents were drawn off takes 1 hour and 50 minutes

Manufacturer

Appliance: IVT Värmepumpar, part of Bosch

Thermotechnik GmbH Box 1012, SE-57343 Tranås,

Sweden

Cylinder: BoRö Pannan AB Bangårdsv. 1, SE-95231 Kalix,

Sweden

16 bar

3 bar

6 bar

2,5 bar

7 bar / 95°C

3 bar

Important note:

Only genuine Bosch Thermotechnology spare parts can be used with these products.

6 720 641 467 (2010/01) 51

COMMISSIONING REPORT

16 COMMISSIONING REPORT

Customer/system user:

System installer:

Type of heat pump:

Commissioning date:

Other system components:

Outdoor sensor T2

Hot water cylinder temperature sensor T3

Heat pump serial number:

HWDU serial number:

Room temperature sensor T5

Others:

Points to be checked prior to commissioning

Heating system: Filled Checked

Electric heater set to 4.5 kW: Set Checked

Filters: Checked Cleaned

Sight glass: Checked Comments:

Heating system pump G1A/G1B working correctly: Heat carrier pump G2 working correctly:

Operating temperature after 10 minutes in heating/DHW mode:

Heat flow out T8:.................. °C

Sensor condensor temp T10:................... °C

Heat return in T9:.................. °C

Refrigerant temp T11:.................. °C

Defrost sensor T12:................... °C

System pressure levels checked ...............................................................................................................................

Functional test carried out ........................................................................................................................................

Ensure that primary circuit has been correctly flushed .............................................................................................

Check fan operation on outdoor unit ........................................................................................................................

Check for insulation of pipe work .............................................................................................................................

Check that CANbus is fitted correctly .......................................................................................................................

Check term switches positioned correctly ................................................................................................................

Check condensation drain operates .........................................................................................................................

Hot water peak set ....................................................................................................................................................

Electricity reading on the house taken ......................................................................................................................

The instructions about how to use the heat pump have been given to the client / to the user

...................................................................................................................................................................................

Documentation about the heat pump has been handed over:......................................................................................

Date and signature of system installer:

Tab. 14

52 6 720 641 467 (2010/01)

BENCHMARK LOG BOOK

17 BENCHMARK LOG BOOK

Fig. 64

AIR TO WATER HEAT PUMP COMMISSIONING CHECKLIST

This Commissioning Checklist is to be completed in full by the competent person who commissioned the heat pump and associated equipment as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.

Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.

Customer Name

Address

Heat Pump Make and Model

Telephone Number

Heat Pump Serial Number

Commissioned by (print name)

Company Name & Address

Building Regulations Notiﬁcation Number

(if applicable)

[2]

Certiﬁed Operative Reg. No.

[1]

Commissioning Date

Telephone No.

CONTROLS - SYSTEM AND HEAT PUMP

Tick the appropriate boxes if applicable

1. Time & Temperature

Control to Heating

2. Time & Temperature

Control to Hot Water

Room Thermostat &

Programmer/Timer

3. Heating Zone Valves (including underﬂoor loops)

4. Hot Water Zone Valves

Programmable

Roomstat

5. Thermostatic Radiator Valves

6. Heat Pump Safety Interlock

[3]

7. Outdoor Sensor

8. Automatic Bypass System

9. Buffer Vessel Fitted

Load/Weather

Compensation

Cylinder Thermostat &

Programmer/Timer

Fitted

Optimum Start

Control

Combined with Heat pump main controls

Not Required

Fitted Not Required

Provided

Fitted

Not Required

Yes No If YES, Volume Litres

ALL SYSTEMS

The heating system has been ﬁlled and pressure tested

Expansion vessel for heating is sized, ﬁtted & charged in accordance with manufacturer’s instructions

The heat pump is ﬁtted on a solid/stable surface capable of taking its weight

Yes

The system has been ﬂushed and cleaned in accordance with BS7593 and heat pump manufacturer’s instructions

What system cleaner was used?

What inhibitor was used?

Yes

Qty litres

Is the system adequately frost protected?

Yes

OUTDOOR UNIT

Are all external pipeworks insulated?

Is the fan free from obstacles and operational?

Has suitable consideration been made for waste water discharge?

Yes

CENTRAL HEATING MODE

Heating Flow Temperature °C Heating Return Temperature °C

DOMESTIC HOT WATER MODE

Measure and Record

Is the heat pump connected to a hot water cylinder? Unvented Vented Thermal Store Not Connected

Hot water has been checked at all outlets Yes Have Thermostatic Blending Valves been ﬁtted? Yes Not required

ADDITIONAL SYSTEM INFORMATON

Additional heat sources connected: Gas Boiler Oil Boiler Electric Heater Solar Thermal Other

ALL INSTALLATIONS

The heating, hot water and ventilation systems complies with the appropriate Building Regulations

All electrical work complies with the appropriate Regulations

The heat pump and associated products have been installed and commissioned in accordance with the manufacturer’s instructions

The operation of the heat pump and system controls have been demonstrated to the customer

The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer

Yes

Commissioning Engineer’s Signature

Customer’s Signature

(To confirm demonstration of equipment and receipt of appliance instructions)

Notes: [1] Installers should be members of an appropriate Competent Persons Scheme. [2] All installations in England and Wales must be notiﬁed to Local Area Building Control (LABC) either directly or through a Competent Persons Scheme. A Building Regulations Compliance

Certiﬁcate will then be issued to the customer. [3] May be required for systems covered by G3 Regulations

6 720 641 467-81.1I

6 720 641 467 (2010/01) 53

BENCHMARK LOG BOOK

Engineer Name:

Company Name:

Telephone No.

Operative ID No.

Comments:

Signature:

Engineer Name:

Company Name:

Telephone No.

Operative ID No.

Comments:

Signature:

Engineer Name:

Company Name:

Telephone No.

Operative ID No.

Comments:

Signature:

Service Record

It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed.

Service Provider

Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.

Always use the manufacturer’s speciﬁed spare part when replacing controls.

Engineer Name:

Company Name:

Telephone No.

Operative ID No.

Comments:

Engineer Name:

Company Name:

Telephone No.

Operative ID No.

Comments:

Signature: Signature: