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Water pressure
Check the water pressure, if it is below 1 bar,fill water
to the system.
Water filter
Clean the water filter.
Water pressure relief valve
Check for correct operation of the pressure relief
valve by turning the black knob on the valve
counter-clockWise:
The following checks must be performed at least once a
year by qualified person.
Carry out a thorough visual inspection of the switch
box and look for obvious defects such as loose
connections or defective wiring.
Check for correct operation of contactors with an
ohm meter. All contacts of these contactors must be
in open position.
Pressure relief valve hose
Check that the pressure relief valve hose is
positioned appropriately to drain the water.
Backup heater vessel insulation cover
Check that the backup heater insulation cover is
fastened tightly around the backup heater vessel.
Domestic hot water tank pressure relief valve (field
supply).
Check for correct operation of the pressure relief
valve on the domestic hot water tank.
Unit switch box
If you do not hear a clacking sound, contact your
local dealer.
In case the water keeps running out of the unit,
close both the water inlet and outlet shut-off
valves first and then contact your local dealer.
35
9 TEST RUN AND FINAL CHECKS
The installer is obliged to verify correct operation of unit
after installation.
9.1 Final checks
Before switching on the unit, read following recommendations:
When the complete installatio n and all necessary
settings have been carried out, close all front panels
of the unit and refit the unit cover.
The service panel of the switch box may only be
opened by a licensed electrician for maintenance
purposes.
9.2 Test run operation (manually)
If required, the installer can perform a manual test
run operation at any time to check correct operation
of air purge, heating, cooling and domestic water
heating, refer to 8.4.11 "TEST RUN" .
10 MAINTENANCE AND SERVICE
In order to ensure optima l availabilit y of the unit, a number
of checks and inspection s on the unit and the field wiring
have to be carried out at regular intervals.
This maintenance needs to be carried out by your local
technician.
In order to ensure optima l availabilit y of the unit, a number
of checks and inspection s on the unit and the field wiring
have to be carried out at regular intervals.
This maintenance has to be carried out by your local
technician.
DANGER
ELECTRIC SHOCK
Before carrying out any maintenance or
repairing activity, must switch off the power
supply on the supply panel.
Do not touch any live part for 10 minutes after
the power supply is turned off.
The crank heater of compressor may operate
even in standby.
Please note that some sections of the electric
component box are hot.
Forbid touch any conductive parts.
Forbid rinse the unit. It may cause electric
shock or fire.
Forbid leave the unit unattended when
service panel is removed.
15 INPUT DEFINE
NO
15.11 PUMP SILENT MODE
38


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