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Control for 6/8 HP Outdoor Unit
SiAF332111E
74
Part 4 Functions and Control
Note(s)
2.5.5 Electronic Expansion Valve Control
Electronic expansion valve Y1E
Cooling: electronic expansion valve is used only at fully closed or fully open condition:
Compressor(s) OFF: fully closed (0 pulse).
Compressor ON:
Fully open (480 pulses)
Normally, the control is used to reduce the PCB temperature.
2.5.6 Step Control of Outdoor Fans
Used to control the revolutions of outdoor fans in the steps listed in table below, according to
condition changes.
* When the system detects that outdoor air temperature (Ta) reaches 41°C or more, the control
of fan revolutions will be changed to 1,060 rpm automatically.
Table shown above is for external static pressure level 0. In case of high external static
pressure, the unit will re-adjust fan revolutions automatically and values may differ.
When capacity priority mode is set, values may differ.
Compressor
Main
Y1E
0 Hz
0
480
pulses
Step No.
Fan revolutions (rpm)
RXMQ6AR
RXMQ8AR
0
0
0
1
200
440
2
250
440
3
300
440
4
360
440
5
420
480
6
490
550
7Y
560
650
7X
630
830
8
700
960*
Summary of Contents for VRV S RXQ4/5ARV1
Page 1: ...Service Manual Cooling Only 50 60 Hz RXQ4 5ARV1 RXMQ6ARV1 RXMQ8 10 12ARY1 SiAF332111E...
Page 369: ...SiAF332111E Wiring Diagrams Part 7 Appendix 363 RXMQ6ARV1 C 3D137051...
Page 370: ...Wiring Diagrams SiAF332111E 364 Part 7 Appendix RXMQ8ARY1 C 3D137060...
Page 371: ...SiAF332111E Wiring Diagrams Part 7 Appendix 365 RXMQ10 12ARY1 3D121610B...
Page 375: ...SiAF332111E Wiring Diagrams Part 7 Appendix 369 FXMQ40 50 63 80 100ARV1 3D127112 04 59...