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INSTALLATION
Commissioning
13. Commissioning
Only qualified contractors may carry out adjustments on the heat
pump manager commissioning report, commission the appliance
and instruct the owner in its use.
Commissioning should be carried out in accordance with these
operating and installation instructions. Our customer service can
assist with commissioning, which is a chargeable service.
Where this appliance is intended for commercial use, the rules of
the relevant Health & Safety at Work Act may be applicable for
commissioning. For further details, check your local authorising
body.
13.1 Checks before commissioning
Before commissioning check the points detailed below.
13.1.1 Heating system
- Have you filled the heating system to the correct pressure?
- Have you closed the quick-action air vent valve of the multi
function assembly (MFG) again after venting?
!
Material losses
Observe the maximum system temperature in underfloor
heating systems.
13.1.2 Heat source
!
Material losses
With an underfloor heating system, never use the heat
pump to dry the screed as this places such a high demand
on the heat source that the frost protection function may
kick in. See menu "PROGRAMS / HEAT-UP PROGRAM".
13.1.3 Temperature sensor
- Have you correctly positioned and connected the outside
temperature sensor and the return temperature sensor (in
conjunction with a buffer cylinder)?
13.1.4 High limit safety cut-out
At ambient temperatures below -15 °C the high limit safety cut-out
of the multi function assembly may respond.
Check whether the high limit safety cut-out has tripped.
2
1
D0000037504
1 Electric emergency/booster heater
2 High limit safety cut-out reset button
Reset the high limit safety cut-out by pressing the reset
button.
13.1.5 Power supply
- Have you correctly connected the power supply?
- If no fault message is displayed when voltage is applied to
the heat pump power supply (mains), then the rotating field
is correctly connected. If the fault message NO OUTPUT ap-
pears, reverse the rotational direction of the compressor.
13.2 Heating curve adjustment during
commissioning
The efficiency of a heat pump decreases as the flow temperature
rises. Therefore adjust the heating curve with care. A heating
curve that is set too high leads to the zone or thermostatic valves
closing and the minimum flow rate required for the heating circuit
may not be achieved.
The following steps will help you to adjust the heating curve cor-
rectly:
Fully open thermostatic or zone valves in a lead room (e.g.
living room or bathroom).
We do not recommend installing thermostatic or zone valves
in the lead room. Control the temperature for these rooms
via remote control.
At different outside temperatures (e.g. -10 °C and +10 °C),
adjust the heating curve so the required temperature is
achieved in the lead room.
Standard values to begin with:
Parameter Underfloor heating
system
Radiator heating
system
Heating curve 0.4 0.8
Control dynamic 5 15
Room temperature 20°C 20°C
If the room temperature in spring and autumn is too low (outside
temperature approx. 10 °C ), the SET ROOM TEMP parameter must
be raised.
Note
If no remote control is installed, raising the SET ROOM
TEMP parameter leads to a parallel offset of the heating
curve.
If the room temperature is not high enough at low outside tem-
peratures, increase the heating curve parameter.
If the heating curve parameter has been raised, adjust the zone
valve or thermostatic valve in the lead room to the required tem-
perature when outside temperatures are high.
Note
Never reduce the temperature in the entire building by
closing all zone or thermostatic valves, instead use the
setback programs.
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