Friedrich D70D 사용자 설명서
IMPORTANT POINTS ON SERVICE OPERATING SAFETY
Please follow these instr uctions carefully :
FLOW CHART FOR INSPECTING AND REPAIRING THE UNIT
- 1 -
Unplug the unit to avoid any danger from electric shock before disassembling the unit for
repair.
If there is any sound of the refrigerant circulating when in operation, avoid touching the
cooling coils.
If you need to perform any welding or soldering, be sure you are in a well ventilated area.
Only a qualified professional should perform any welding on the unit.
When repairing the unit, the specifications listed in this manual must be strictly adhered
to when replacing any components.
When replacing any electrical components they should be factory approved units.
Be sure that any electrical components are properly wired and in place.
repair.
If there is any sound of the refrigerant circulating when in operation, avoid touching the
cooling coils.
If you need to perform any welding or soldering, be sure you are in a well ventilated area.
Only a qualified professional should perform any welding on the unit.
When repairing the unit, the specifications listed in this manual must be strictly adhered
to when replacing any components.
When replacing any electrical components they should be factory approved units.
Be sure that any electrical components are properly wired and in place.
Electricity shutdown
Dehumidifier
doesn't work
doesn't work
Check if drain bucket
water level switch
is broken
Check fuses on
main switch
Can not dehumidify
Humidity sensor
is broken
Humidity setting on
continuous operation
Over load protector is
faulty
Check if air filter is
clogged
Capacitors are faulty
Compressor doesn't
work
Refrigerant is leaking
Maintain
&
repair system
Supply Nitrogen 15Kg/cm² from low
pressure side and locate the leakage
pressure side and locate the leakage
Use oxygen acetylene and 5% silver
iron to fill cracks and holes
Pump vacuum for at
least 15 minutes
After filling with
refrigerant proceed to test run