Field Wiring Si39-303
186 Installation Manual
Field line connection: transmission wiring and cool/heat selection
[In case of RXYQ5-16MY1B]
1.Cool/heat selector
2.Outdoor unit P.C. board (A1P)
3.Take care of the polarity
4.Use the conductor of sheathed
wire (2 wire) (nopolarity)
5.Terminal board (field supply)
6.Indoor unit
[In case of RXYQ18-48MY1B]
A B C
ABCF1 F2 F1 F2 Q1 Q2
A B C F1 F1F2 F2 Q1 Q2
F1 F2 F1 F2 F1 F2
F1 F2 F1 F2 F1 F2
F1 F2 F1 F2 F1 F2
4
5
6
1
2
C/H SELECTOR
TO IN/D UNIT
TO OUT/D UNIT TO MULTI UNIT
A1P
3
A BCF1F2F1F2Q1Q2 Q1Q2 Q1Q2
A1P
1
4
7
8
9
56 6 6
23
1. Unit A (Base unit)
2. Unit B
3. Unit C
4. TO IN/D UNIT
5. TO OUT/D UNIT
6. TO MULTI UNIT
7. To cooler/heater selector
8. To indoor unit
9. To other systems
ABCF1
X1M
F2 F1 F2
1
2
3
4
Heating/cooling switching
remote control
(Outdoor –Outdoor)
(Indoor –Outdoor)
1. Heating/cooling switching remote control cord
(when a heating/cooling switch remote
comtrol (sold separately) is connected)
2. Secure to the lock plate using the included
clamping material.
3. Wiring between the units (Outdoor - outdoor)
4. Wiring between the units (Indoor - outdoor)
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