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SiUS39-602
Field Setting
Test Operation
99
3.2.2
Cool / Heat Mode Switching
Set Cool/Heat Separately for Each BS Unit by Cool/Heat Selector.
Set remote controller change over switch (SS1, SS2) as following:
•
When using COOL/HEAT selector, turn this switch to the BS side.
When using cool/heat selector, connect to the terminal A, B and C on the EC of the electric
parts box.
EXAMPLE OF TRANSMISSION LINE CONNECTION
•
Example of connecting transmission wiring.
Connect the transmission wirings as shown in the Fig. 1.
SS2
SS1
This setting must be completed
before turning power supply ON.
NOTE:
1
2
1
2
F2
B
C
A
F2
F1
F1
F2
F1
Outdoor unit
TO IN/D UNIT TO OUT/D UNIT
F1 F2
F1
F2
F1
F2
F1 F2
IN/D
OUT/D.BS
REMOTE
CONTROLLER
BS unit A
F1
F2
F1
F2
IN/D
OUT/D.BS
BS unit B
COOL/HEAT
selector
Branch wiring
Use 2-core wires.
(There is no polarity.)
B
C
A
REMOTE
CONTROLLER
COOL/HEAT
selector
Cool/heat selector remote
control wiring
Use 3-core wires.
(Keep in mind the polarity.)
F1
F2
F1
F2
IN/D
OUT/D.BS
B
C
A
REMOTE
CONTROLLER
Final BS unit
Indoor unit for cooling
F2
F1
COOL/HEAT
selector
Fig. 1
F2
F1
F2
F1
F1 F2
F1
F2
F1
F2
IN/D
OUT/D.BS
F1 F2
F1
F2
OUT/D.BS
To the indoor unit where
the selection of heating
and cooling is available.
Final BS unit
In case of the indoor unit connect as the cool-only unit, it wire
he terminal
of the last BS unit.
Cooling only
1st unit
Final unit
Summary of Contents for REYQ72
Page 35: ...Specifications SiUS39 602 24 Specifications...
Page 121: ...Field Setting SiUS39 602 110 Test Operation...
Page 129: ...Troubleshooting by Remote Controller SiUS39 602 118 Troubleshooting...
Page 225: ...Troubleshooting OP Unified ON OFF Controller SiUS39 602 214 Troubleshooting...
Page 232: ...SiUS39 602 Piping Diagrams Appendix 221 1 3 BS Unit BSVQ36MVJU BSVQ60MVJU 4D045338...
Page 235: ...Wiring Diagrams for Reference SiUS39 602 224 Appendix REYQ144 168 192MTJU C 3D050354A...
Page 240: ...SiUS39 602 Wiring Diagrams for Reference Appendix 229 2 4 BS Unit BSVQ36M 60MVJU 3D045069A...
Page 249: ...Example of Connection R 410A Type SiUS39 602 238 Appendix...
Page 255: ...Method of Replacing The Inverter s Power Transistors and Diode Modules SiUS39 602 244 Appendix...
Page 265: ...Precautions for New Refrigerant R 410A SiUS39 602 254 Precautions for New Refrigerant R 410A...
Page 269: ...SiUS39 602 iv Index...