Si39-502A
Field Setting
Test Operation
131
3.2.6 Setting of Vacuuming Mode
In order to perform vacuuming operation at site, fully open the expansion valves of indoor and
outdoor units and turn on some solenoid valves.
[Operating procedure]
c
With
Setting Mode 2
while the unit stops, set “Refrigerant recovery / Vacuuming mode” to
ON. The expansion valves of indoor and outdoor units fully open and some of solenoid
valves open.
(H2P blinks to indicate the test operation, and the remote controller displays "Test
Operation" and "Under Centralized control", thus prohibiting operation.)
After setting, do not cancel “Setting Mode 2” until completion of Vacuuming operation.
d
Use the vacuum pump to perform vacuuming operation.
e
Press Mode button “BS1” once and reset “Setting Mode 2”.
3.2.7 Check Operation
To prevent any trouble in the period of installation at 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) of discharge pipe thermistor and judgment of piping
length, refrigerant overcharging, and learning for the minimum opening degree of motorized valve.
3.2.8 Power Transistor Check Operation
When the inverter system malfunctions (malfunction of inverter, INV compressor), to locate
where the malfunction occurs, switching to the power transistor check mode of inverter in the
service mode setting enables not to judge the position detection signal malfunction but to output
waveform only during inverter operation. (The waveform can be checked by disconnecting the
wiring of compressor.)
Note:
Be sure to disconnect the compressor wiring when conducting the check operation mentioned
above.
When the output voltage is approx. 50 V (10 Hz) and the voltage balance between phases U-V,
V-W, W-U is within ±5%, the inverter PC board is normal.
Unit stopping
Press the TEST button for 5 seconds.
10 sec to 10 minutes
LED display (H1P~H7P) (
8
:
ON
3
:
OFF
9
:
BLINK)
3383333
3933338
Pressure equalizing
Step 1
20 sec to 2 minutes
10 minutes
3 minutes
5 minutes
3933383
Cooling start control
Step 2
3933388
3933888
3938333
Stability waiting operation
Step 3
Pump down residual operation
Step 7
5 minutes
Standby for restarting
Completion
Step 8
•
Stop valve close check
•
Wrong wiring check
•
Refrigerant over change check
•
Piping length check
3933833
3933838
3933883
Judgement function
Step4~6
CHECK OPERATION FUNCTION
Summary of Contents for VRV II RXYQ8MY1K
Page 53: ...Specifications Si39 502A 42 Specifications...
Page 143: ...Field Setting Si39 502A 132 Test Operation...
Page 258: ...Si39 502A Wiring Diagrams for Reference Appendix 247 FXCQ40M 50M 80M 125MVE 3D039557A...
Page 260: ...Si39 502A Wiring Diagrams for Reference Appendix 249 FXKQ25M 32M 40M 63MVE 3D039564A...
Page 264: ...Si39 502A Wiring Diagrams for Reference Appendix 253 FXMQ40M 50M 63M 80M 100M 125MVE 3D039620A...
Page 265: ...Wiring Diagrams for Reference Si39 502A 254 Appendix FXMQ200M 250MVE 3D039621A...
Page 266: ...Si39 502A Wiring Diagrams for Reference Appendix 255 FXHQ32M 63M 100MVE 3D039801C...
Page 267: ...Wiring Diagrams for Reference Si39 502A 256 Appendix FXAQ20M 25M 32M 40M 50M 63MVE 3D034206A...
Page 269: ...Wiring Diagrams for Reference Si39 502A 258 Appendix FXUQ71M 100M 125MV1 3D044973...
Page 270: ...Si39 502A Wiring Diagrams for Reference Appendix 259 FXAQ20MH 25MH 32MH 40MH 50MHV1 3D046348A...
Page 271: ...Wiring Diagrams for Reference Si39 502A 260 Appendix FXLQ20MH 25MH 32MH 40MH 50MHV1 3D046787A...
Page 272: ...Si39 502A Wiring Diagrams for Reference Appendix 261 BEVQ50MVE 3D046579A Notes...
Page 273: ...Wiring Diagrams for Reference Si39 502A 262 Appendix BEVQ71M 100M 125MVE 3D044901A Notes...
Page 285: ...Piping Installation Point Si39 502A 274 Appendix...
Page 293: ...Method of Replacing The Inverter s Power Transistors and Diode Modules Si39 502A 282 Appendix...
Page 307: ...Si39 502A iv Index...
