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User manual
Hydrobox module AQMS80X1i
EN
PART 1. OWNER’S MANUAL
The described checks must be executed at least once a year.
• Water pressure
When the pointer of the water pressure gauge is in the red area or check if the water pressure is above 0.5
bar. If necessary add water.
• Water filter
Clean the water filter.
• Water pressure relief valve
Check for correct operation of the pressure relief valve by turning the red knob along the valve coun-
ter-clockwise:
1. If you do not hear a clacking sound, contact your local dealer.
2. 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.
• Pressure relief valve hose
Check that the pressure relief valve hose is positioned appropriately to drain the water.
If the drain pan kit is installed, make sure that the pressure relief valve hose end is positioned in the drain
pan.
• Auxiliary heater vessel insulation cover
Check that the auxiliary heater insulation cover is fastened tightly around the auxiliary heater vessel.
• Indoor unit control box
1. Carry out a through visual inspection of the control box and look for obvious defects such as loose
connections or defective wiring.
2. Check for correct operation of contactors by the use of an ohmmeter. All of these contactors must be
in open position.
NOTE:
1. Regular cleaning and maintenance is required, otherwise it may the failure rate and shorten the service life. Ef-
fective cleaning and maintenance can not only remove the dust in the machine, extend the service life, but also
reduce the power consumption of the system.
2. According to the local winter climate and installation location, it is necessary to determine whether to drain the
water in the water module to prevent the water module from frost cracking.
3. The unit must be powered uninterruptedly to ensure the normal operation of anti freezing function. It is forbid-
den to close the valve on the hot water side and the stop valve on the pipeline on the air conditioning side to
prevent blocking the operation of anti freezing function. In case of power failure or long-term non use, the water
in the pipeline and heat exchanger must be drained
