32
NOTE
Before repair and maintenance, ensure that the hydro module is powered off.
8 MAINTENANCE
● Water pressure
Check if the water pressure is above 0.3 bar. Add water if necessary.
● 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 counter-clockwise:
1. If you do not hear a clacking sound, contact your local dealer.
2. If 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.
● Sanitary hot water tank pressure relief valve (field supply)
Applies only to installations with a sanitary hot water tank. Check for correct operation of the pressure relief valve on the
sanitary hot water tank.
● Sanitary hot water electric heater
Applies only to installations with a sanitary hot water tank. It is advisable to remove lime buildup on the electric heater to
extend
its life span, especially in regions with hot water. To do so, drain the sanitary hot water tank, remove the electric heater from
the sanitary hot water tank and immerse in a bucket (or similar) with lime-removing product for 24 hours.
● 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.
Important information for the used refrigerant
This product has the fluorinated gas, it is forbidden to release to air.
Refrigerant type: R410A/ Kg or R134a / Kg
Volume of GWP: 2088 or 1430; tonnes CO2 equivalent
GWP=Global Warming Potential
ATTENTION:
Frequency of Refrigerant Leak Checks
1) For equipment that contains fluorinated greenhouse gases in quantities of 5 tonnes of CO
2
equivalent or more,but of less
than 50 tonnes of CO
2
equipment,at least every 12 months , or where a leakage detection system is installed, at least every
24 months.
2) For equipment that contains fluorinated greenhouse gases in quantities of 50 tonnes of CO
2
equivalent or more,but of less
than 500 tonnes of CO
2
equipment,at least every six months , or where a leakage detection system is installed, at least every
12 months.
3) For equipment that contains fluorinated greenhouse gases in quantities of 500 tonnes of CO
2
equivalent or more,at least
every three months ,or where a leakage detection system is installed, at least every six months.
4) This air-conditioning unit is a hermetically sealed equipment that contains fluorinated greenhouse gases.
5) Only certificated person is allowed to do installation, operation and maintenance.