27
- Has the condensate hose been routed correctly?
- Was a vessel placed beneath the safety valve discharge hose?
6.1.2 Ventilation system
- Have the air ducts been installed correctly and sealed if
required?
- Have all air connections been designed correctly?
6.1.3 Heat pump
- Have the insulated air hoses been installed in accordance
with regulations? In particular, the outdoor air and exhaust
air connections must be sealed carefully on both sides.
- Are the exterior wall outlets free from leaves and other
contamination?
Note
Never fit any additional fly screens in the wall outlets.
6.1.4 Cylinder
- Has the cylinder been filled (hot tap open until water flows
out)?
- Has a pressure reducing valve been installed if the water
pressure is above 80% of the permissible pressure?
D0000051625
1
1 Plastic union nut
!
Material losses
The torque of the plastic union nut depends on the gasket
used.
15Nm = prefitted soft rubber gasket.
25Nm = alternative hard gasket.
Keep to the permissible torque.
- Is the plastic union nut tight against leaks? If it is leaking,
tighten the plastic union nut.
6.1.5 Temperature sensor
- Have outside sensors, cylinder temperature sensor and, if
required, mixer circuit sensor and flow sensor for the second
heating circuit been correctly positioned and connected?
6.1.6 Power supply
- Has the power supply been designed correctly and the earth
conductor for the cylinder connected?
- Have all internal cables been connected correctly?
6.1.7 High limit safety cut-out
With ambient temperatures of below -10°C, it is possible that
the high limit safety cut-out of the electric emergency/booster
heater may trip.
Check whether the high limit safety cut-out has tripped.
26_04_01_0621
1
1 Reset button for high limit safety cut-out
Reset the high limit safety cut-out by pressing the reset
button.
6.1.8 Condensate pump
Check the condensate pump before commissioning the
appliance.
Check whether the drain hose of the defrost tray is routed
correctly.
6.2 Filter insertion
!
Material losses
Never operate the appliance without filters.
Insert the supply air filter, included in the standard
delivery, into the appliance.
D0000076369
6.3 Commissioning via the programming unit
337705 Commissioning / Notification list
6.4 Recommissioning
Carry out the work specified in chapter „Maintenance“.
If there has been frost since the appliance was shut down,
check all hydraulic lines for possible frost damage.
Fill the DHW cylinder.
Fill the heating circuit.
Switch on the power supply.
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