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Field Settings from Outdoor Unit
SiUS331708EA
127
Field Settings and Test Operation
Note:
• The outdoor air temperature must be between 18.3°C (65°F) and 40.6°C (105°F).
• The operation is not possible when a vessel is attached to the liquid piping.
• The compressor rotation speed must be at or above that of charge mode.
(Confirm with the LED display on the outdoor unit PCB.)
• The maximum added refrigerant for subcooling matching is 1 kg (2.2 lbs).
• Reduce the refrigerant when the subcooling degree is high.
• Refrigerant charge mode ends in 60 minutes. If 60 minutes is not long enough, begin the procedure again from
step (1).
• When the discharge pipe superheat degree is low, or if the low pressure is too low, forcibly end refrigerant
charge mode.
2.10 Check Operation
To prevent any trouble in the period of installation on site, the system is provided with a test operation mode
enabling check for incorrect wiring, stop valve left in closed, coming out (or misplacing with suction pipe
thermistor) or discharge pipe thermistor and judgment of piping length, refrigerant overcharging, and learning for
the minimum opening degree of electronic expansion valve.
Unit stopping
Press the
TEST (BS4)
button for 5
seconds.
10 seconds to 10 minutes
LED display (H1P~H7P) (
k
:
ON
h
:
OFF
l
:
BLINK)
h h k h h h h
h l h h h h k
Pressure equalizing
Step 1
20 seconds to 2 minutes
10 minutes
3 minutes
15 minutes
h l h h h k h
Cooling start control
Step 2
h l h h h k k
h l h h k k k
Stability waiting operation
Step 3
Refrigerant overcharge judgment
Step 7
•
Stop valve close check
•
Wrong wiring check
•
Piping length check
h l h h k h h
h l h h k h k
h l h h k k h
Judgment function
Step4~6
5 seconds
h l h k h h k
h l h k h k h
Pump down residual operation
Step 8
2 minutes
Standby for restarting
Completion
Step 9
Summary of Contents for RXSQ24TAVJU
Page 1: ...Service Manual SiUS331708EA RXSQ24 36 48 60TAVJU Heat Pump 60 Hz...
Page 290: ...Wiring Diagrams SiUS331708EA 277 Appendix RXSQ48TAVJU 3D109546A...
Page 291: ...SiUS331708EA Wiring Diagrams Appendix 278 RXSQ60TAVJU 3D109547A...
Page 295: ...SiUS331708EA Wiring Diagrams Appendix 282 FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Page 298: ...Wiring Diagrams SiUS331708EA 285 Appendix FXEQ07 09 12 15 18 24PVJU 3D098557A...
Page 300: ...Wiring Diagrams SiUS331708EA 287 Appendix FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU 3D110467B...
Page 301: ...SiUS331708EA Wiring Diagrams Appendix 288 FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...
Page 302: ...Wiring Diagrams SiUS331708EA 289 Appendix FXHQ12 24 36MVJU 3D048116C...
Page 303: ...SiUS331708EA Wiring Diagrams Appendix 290 FXAQ07 09 12 18 24PVJU 3D075354C...
Page 309: ...SiUS331708EA Wiring Diagrams Appendix 296 VAM1200GVJU 3D073270D...