iNSTALLATiON
Commissioning
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21
12. Commissioning
A WPM heat pump manager is required to operate the appliance.
All necessary adjustments prior to and during operation are made
on this device.
Only a qualified contractor should carry out the settings in the
heat pump manager commissioning instructions, commission the
appliance and instruct the operator in its use.
Carry out commissioning in accordance with these operating and
installation instructions, and the instructions for the heat pump
manager. Our customer support can assist with commissioning,
which is a chargeable service.
f
Observe the accompanying commissioning checklist.
Where this appliance is intended for commercial use, the rules of
the relevant Operational Safety Ordinance must be observed at
commissioning. For further details, check with your local author-
ising body (e.g. TÜV).
12.1 Checks before commissioning
Before commissioning, check the following:
12.1.1 Heating system
- Have you filled the heating system to the correct pressure
and opened the quick-action air vent valve?
12.1.2 Temperature sensors
- Have you correctly positioned and connected the outside sen-
sor and the return temperature sensor (in connection with a
buffer cylinder)?
12.1.3 High limit safety cut-out
At ambient temperatures below -15 °C it is possible that the high
limit safety cut-out of the electric emergency/booster heater may
trip.
f
Check whether the high limit safety cut-out has tripped.
26
0
3
01
1
88
0
1
26
0
3
01
1
88
0
1 Electric emergency/booster heater
f
Remove the cause of the fault.
D
00000
35
38
3
f
Reset the high limit safety cut-out by pressing the reset but-
ton.
12.1.4 Power supply
- Have you correctly connected the power supply?
12.2 Using the appliance with an external second
heat generator
The appliance is factory set for compressor operation with an elec-
tric emergency/booster heater. If the appliance is operated in dual
mode with an external second heat generator, set the DIP switch
to compressor mode with an external second heat generator (see
chapter "Troubleshooting / Checking the IWS DIP switch settings").
12.3 Checking the flow rate
Note
The minimum flow rate and the defrost energy must al-
ways be assured (see chapter "Specification / Data table").
When heating circuit temperatures are very low, in excep-
tional circumstances it is possible that the electric emer-
gency/booster heater will be activated during a defrost
operation in order to provide the required defrost energy.
The appliance is designed in such a way that no buffer cylinder
is required in conjunction with appropriately sized area heating
systems.
Installations with several heating circuits require a buffer cylinder
to be used.
The setting is made in heat pump mode. In order to do this, firstly
make the following settings:
f
Temporarily remove the fuse from the electric emergency/
booster heater to isolate the emergency/booster heater from
the power supply. Alternatively, switch OFF the second heat
generator.
f
Ensure that hydronic balancing has been performed.
f
Check the connected pumps against the hydraulic diagram.
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