Technical data
Table Of Contents
- Table of contents
- 1 Key to symbols and safety instructions
- 1.1 Explanation of symbols
- 1.2 Safety instructions
- 2 About the appliance
- 2.1 Designated use
- 2.2 EU Declaration of Conformity
- 2.3 Data plate
- 2.4 Standard delivery
- 2.5 Accessories
- 2.6 Tools, materials and miscellaneous parts
- 2.7 General information on energy use and heat production
- 2.8 Function description of the hybrid manager
- 2.9 Handling circuit boards
- 2.10 Refrigerant circuit
- 2.11 Combi boiler with serial buffer tank, bypass valve and unmixed heating circuit
- 2.12 System boiler with serial buffer tank, bypass valve and unmixed heating circuit
- 2.13 Combi boiler with serial buffer tank, bypass valve, unmixed heating circuit and independently controlled mixed heating circuit
- 2.14 System boiler with serial buffer tank, bypass valve, unmixed heating circuit and independently controlled mixed heating circuit
- 2.15 Overview of components
- 2.16 Dimensions
- 2.17 Technical Data
- 3 Regulations
- 4 Transport
- 5 Mounting and installation
- 5.1 Preparing for installation
- 5.2 System component configuration
- 5.3 Pre-installing pipes
- 5.4 Mounting the hybrid manager
- 5.5 Installing the external unit
- 5.6 Installing the refrigerant circuit
- 5.7 Making the electrical connection
- 5.8 Installing the outside temperature sensor
- 5.9 Setting the DIP switches of the external unit
- 6 Commissioning
- 6.1 Before commissioning
- 6.2 Commissioning the system for the first time
- 6.2.1 Providing the external unit with a power supply ahead of commissioning
- 6.2.2 providing the external unit with a power supply during commissioning
- 6.2.3 Connecting the CANBUS cable to the hybrid manager unit
- 6.2.4 Making the power supply connection
- 6.2.5 Switching on the hybrid system
- 6.2.6 Connecting the programming unit to the hybrid control module
- 6.2.7 Connecting the heat source to the hybrid manager
- 6.2.8 Communication error from External unit on initial power ON of External Unit and Hybrid Manager
- 6.2.9 Adjusting the Hybrid manager circulating pump in the hybrid manager
- 6.2.10 System with series buffer tank
- 6.2.11 Venting the hybrid manager
- 6.2.12 Setting the bypass valve
- 6.2.13 Setting parameters for optimising energy use and costs of the hybrid system
- 6.2.14 Explanation of the parameters for energy and cost optimization of the hybrid system (control strategy)
- 6.2.15 Control Strategy: Option CO2 Optimised and co2 :cost mix
- 6.2.16 Control Strategy: Co2 optimised (environmental factors)
- 6.2.17 Control Strategy: CO2: Cost mix
- 6.2.18 Control Strategy: Option changeover temperature
- 6.2.19 Control Strategy: Cost optimised
- 6.2.20 Control strategy: hydraulic connection
- 6.2.21 Control strategy: Delay time for boiler heating
- 6.2.22 Control strategy: Temperature diff for boiler switch ON
- 6.2.23 Setting parameters at the hybrid control module
- 6.2.24 Commissioning of the air to water heat pump at outside temperatures outside the standard operating range
- 6.2.25 Informing the customer and handing over the technical documents
- 7 Operation
- 8 Environmental protection/disposal
- 9 Inspection and maintenance
- 10 Faults
- 10.1 Faults that are not displayed
- 10.2 Displayed faults
- Overview of internal hybrid fault indicators locations
- 10.2.1 Fault displays on the hybrid control module
- 10.2.2 Check temperature sensor of hybrid manager
- 10.2.3 Faults of the FW200 programming unit
- 10.2.4 Fault display on the FW 200 weather-compensated controller at user level
- 10.2.5 Fault display on the rear of the hybrid manager
- 10.2.6 External unit faults
- 10.2.7 Check components
- 10.2.8 DC fan motors/check PCB
- 10.2.9 Check external unit temperature sensor
- 10.2.10 Check linear expansion valves (LEV)
- 11 Replace components
- 11.1 Pumping refrigerant back into the external unit
- 11.2 Removing the casing from the external unit
- 11.3 Replacing the fan motor
- 11.4 Replacing the PCB housing
- 11.5 Replacing PCBs
- 11.6 Replacing faulty temperature sensors TH3, TH6 or TH33
- 11.7 Replacing outside temperature sensor TH7
- 11.8 Replacing temperature sensors TH4 and TH32
- 11.9 Fitting and removing the linear expansion valve
- 11.10 Removing the transformer (ACL)
- 12 Filling the refrigerant circuit
- 13 Appendix
- 13.1 Cost weighting electricity price — gas price
- 13.2 System wiring (heatronic III boiler connections) with a bypass valve and one unmixed heating circuit
- 13.3 System wiring (CUS boiler connections) with a bypass valve and one unmixed heating circuit
- 13.4 Wiring to PCB in the external unit (heat pump)
- 13.5 Controller circuit board in external unit
- 13.6 Alternative pipe work lengths and T
- 14 General details
- 15 Assembly and installation report for the installer
- 16 Commissioning report for the commissioning engineer

FAULTS
6 720 803 687 (2012/11)68
UL Low pressure fault
Fault “UL” is shown if the following
conditions are met for 3 minutes in
10 following compressor start in
heating mode.
•TH7 - TH3 4 K
• TH5 - Room temperature 2K.
This means:
TH3: liquid line temperature in the
external unit in °C.
TH5: evaporator/condenser
temperature in the internal unit in
°C.
TH7: outside temperature in °C.
Shut-off valves closed. ▶ Open shut-off valves.
Insufficient refrigerant or leak. ▶ Check amount of refrigerant and additional charge.
▶ Check pipe system for leaks and eliminate any leaks.
▶ Check increased heat through superheating.
Faulty linear expansion valve (LEV). ▶ Check linear expansion valve (LEV).
Refrigerant circuit blocked by foreign objects or
contaminated by water.
▶ Vacuum out refrigerant.
▶ Subject the refrigerant circuit to the vacuum for at least one
hour to remove the water.
▶ Refill with clean refrigerant.
UP Compressor overcurrent — safety
device has responded
If the protective equipment is
tripped 30 seconds after the
compressor start due to DC
overcurrent, fault display “UP” is
shown.
Ball valve closed in operation. ▶ Check and completely open all ball valves.
Reduced supply voltage (mains side). ▶ Check supply voltage (mains side).
Poor connection/contacts or terminal loose on
compressor supply cables.
▶ Check and correct compressor wiring.
Fan faulty. ▶Check fan.
Air short circuit on internal or external unit. ▶ Eliminate air short circuit.
Faulty input circuit (voltage) on the external unit
PCB.
▶ Replace faulty PCB.
Faulty compressor. ▶ Check compressor and replace external unit if required.
Inverter board faulty. ▶ Replace faulty PCB.
DIP switch settings incorrect on the external unit
PCB.
▶ Check DIP switches and correct settings.
E6 Signalling error between the
internal and external units
(reception error)
The internal unit cannot receive any
signals within 6 minutes from start
or after 3 minutes in operation. Fault
display “E6” is shown.
Poor connection/contacts or terminal loose on the
control cables, cable break.
▶ Check and correct wiring for all control cables between
internal and external unit.
Faulty transmitter/receiver circuit on external unit
PCB.
▶ Check whether the fault display E6 will still be issued after a
restart.
▶ Check PCBs of the internal and external units and replace if
faulty.
Faulty transmitter/receiver circuit on internal unit
PCB.
Noise in the control cables.
Fan motor faulty. ▶ Isolate the external unit from the power supply, and undo
terminal CNF1 on the fan motor. Restart external unit.
– Replace fan motor if the fault message is no longer
displayed.
– Replace the external unit PCB if the fault message
continues to be displayed.
Faulty starting current limiter on the external unit
PCB.
▶ Check starting current limiter and replace if required.
E7 Signalling error between the
internal and external units
(transmission error)
Fault display “E7” will be shown if it
has been recognised 30 times that
“1” is being received constantly,
however the internal unit sends “0”.
Faulty transmitter/receiver circuit on internal unit
PCB.
▶ Check whether the fault display E7 will still be issued after a
restart.
▶ Check PCBs of the internal and external units and replace if
faulty.
Noise in the voltage system.
Noise in the control cables.
E8 Communication error between
internal and external unit —
reception error
If the external unit cannot receive
any signals within 3 minutes, fault
display “E8” is shown.
Poor connection/contacts or terminal loose on the
control cables, cable break.
▶ Check and correct wiring for all control cables between
internal and external unit.
Faulty transmitter/receiver circuit on external unit. ▶ Switch the supply voltage off and on again (reset system).
▶ Check if fault display “E8” is shown again after the restart.
▶ Check PCBs of the internal and external units and replace if
faulty.
Faulty transmitter/receiver circuit on internal unit.
Noise in the control cables.
Code Description Cause Possible solution / check
Table 39 Fault indications, external unit










