Page
27
of
35
Procedure 15
15.
COMPRESSOR CHECK / REPLACE
Compressor: Code:
D0020030;
Model:
WHP01900BSV-H8JU
Compressor capacitor: Code:
G0050012;
Model:
CBB65-15UF
Tools:
Screw driver PH2 & PH3; Pliers; El= multimeter; Spanner S8; S10
Risk of electric shock!
Disconnect the HPWH from the main electric supply
Risk of injuries due to refrigerant vapors!
Discharge refrigerant!
Use special protective gloves for refrigerant and eyeglasses!
Risk of burning while brazing copper pipes!
Use special protective gloves and eyeglasses!
3) Switch off the HPWH
4) Open the PCB box as per procedure 1.
5) Tear up the cable bundle containing the cable of Thermal switch
6) With multimeter measure the resistance of the compressor capacitor
(Ω): if the value is 0, proceed with the replacement of compressor itself
Fig: pr.15.2
7) If capacitor is OK, procced with a compressor replacement.
Fig: pr.15.3
8) Discharge the refrigerant as per procedure 9
9) Remove heat insulation
Fig: pr.15.3
10)
U
nscrew the nut M8 and remove protective plastic cap as per picture
Fig: pr.15.4
11) Disconnect cables
Fig: pr.15.4
12) Remove three supporting nuts M10.
13) Dismantle the compressor by unsoldering its supplying copper pipes
14) Replace with a new compressor
15) Assemble everything in the reverse order. Do not forget to connect
compressor ground connection
Fig: pr.15.6.
16) Braze all copper connections. Keep cable bundle away from the
burning flame!
17) Vacuuming as per procedure 9
18) Charge refrigerant 880
– 890g as per procedure 9
19) Check for refrigerant leakage as per procedure 9
20) Check working parameters as per procedure
Fig: pr.15.1:
Fig: pr.15.2:
Compressor
capacitor
