Hitachi UTOPIA R32 Series - Page 64

55
PMEN0654 rev.0 - 12/2023
13
RAS-(2-3)HVRC3 TEST RUN PROCEDURE
TEST RUN FROM OUTDOOR UNIT SIDE
Operaon DSW Seng Operaon Remarks
Manual
OFF of
compressor
 Seng:
Compressor Manual OFF: DSW301-4 ON.
Compressor ON: DSW301-4 OFF.
 When DSW301-4 is ON during
compressor operaon, the
compressor stops to operate
immediately and the indoor
unit is under the condion of
Thermo-OFF.
 When DSW301-4 is OFF, the
compressor starts to operate
aer the cancellaon of
3-minutes guard.
•
Do not repeat compressor ON/OFF
frequently.
Manual
defrost
 Manual defrost operaon starts
Press PSW1 for more than 3 seconds
during heang operaon, the defrost
operaon is started aer 2 minutes. This
funcon is not available within 5 minutes
aer starng heang operaon.
 Manual defrost operaon nishes
Defrost operaon is automacally ended
and the heang operaon is started.
 Defrost operaon is available
regardless of frosng condion
and total me of heang
operaon.
 Defrost operaon in not
performed when the
temperature of outdoor heat
exchanger is higher than 10°C,
high pressure is higher than
3.3 MPa (33 kgf/cm
2
G) or
Thermo-OFF.
•
Do not repeat defrost operaon
frequently.