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) 69
E9 Communication error between
internal and external unit —
transmission error
Fault display “E9” is shown in the
following cases (on the external unit
only).
• Failed 30 times to receive a “0”
when a “1” is expected.
•The external unit cannot transmit
a signal within 3 minutes because
the lines are busy.
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 “E9” is shown again after the restart.
▶ Check PCBs of the internal and external units and replace if
faulty.
Noise in the voltage system.
Noise in the control cables.
EF Unknown fault
An unknown fault was received and
fault display “EF” is shown.
Noise in the control cables between internal and
external unit.
▶ Switch the supply voltage off and on again (reset system).
▶ Check if fault display “EF” is shown again after the restart.
▶ Check PCBs of the internal and external units and replace if
faulty.
The external unit is not a power inverter model. ▶ Use a power inverter external unit.
Ed Communication error — serial
operating signal
There has been a fault in the
communication between the power
circuit board and the PCB in the
external unit.
Poor connection/contacts or terminal loose at the
terminal of the connection cables between the
PCB and the power circuit board of the external
unit (CN2). Cable break.
▶ Check wiring and plug CN2 and CN4 between the PCBs and
correct if required.
Poor connection/contacts or terminal loose at the
terminal of the connection cables between the
PCB and the power circuit board of the external
unit (CN4). Cable break.
Faulty power circuit board communication circuit. ▶ Check power circuit board.
Faulty PCB communication circuit. ▶Check PCB.
P8 Pipe work temperature TH
Ten seconds after the compressor
start, the “Hot Adjust” heat-up mode
is already completed, fault display
“P8” is shown if the heating
temperature is out of range for at
least 20 minutes.
To identify these faults takes 27
minutes. This check is not
implemented in defrost mode. The
check restarts after the defrost
mode has terminated. Permissible
temperature range in heating mode:
3K pipe work temperature of the
internal unit (TH5) — 18 °C (TH1).
Slow increase of temperature differential between
room temperature and pipe work temperature
(line or heat exchanger) in the internal unit due to:
• Refrigerant shortage
• Temperature sensor in the internal unit
detached from its holder.
• Refrigerant circuit fault.
▶ Check internal unit temperature sensor using the system
monitor (external unit PCB or “PAC-SK52ST” diagnostic
device).
▶ TH1 = 7 K (equals 18 °C)
Capturing error at temperature sensor TH5.
Refrigerant lines reversed. ▶ Check pipe work and wiring.
Control lines reversed.
4-way valve faulty. ▶ Check functioning of 4-way valve.
Code Description Cause Possible solution / check
Table 39 Fault indications, external unit










