Circuit diagrams
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L: Power supply phase line
N: Power supply zero line
9. FR125/S signal line terminals
(1) Outdoor fan motor (high speed)
(2) 3-phase power supply phase A
(3) Reversing valve coil
(4) Outdoor fan motor (medium speed)
(5) Outdoor fan motor (low speed)
(6) Power supply zero line
(7) Compressor AC contactor coil
(8) 3-phase power supply phase B
(9) 3-phase power supply phase C
10. FR125-C/S and FRD125/S signal line terminals
(1) Outdoor fan motor (high speed)
(2) Outdoor fan motor (medium speed)
(3) Reversing valve coil
(4) Compressor AC contactor coil
N: Power supply zero line
L1: 3-phase power supply phase A
L2: 3-phase power supply phase B
L3: 3-phase power supply phase C
11. FR(D)180/S and FR(D)260/S signal line/terminal numbers and meanings
A. 6-core wire
(1) Red Compressor small relay coil
(2) Gray Reversing valve small relay coil
(3) Purple Small relay coil of outdoor fan 1
(4) Orange Small relay coil of outdoor fan 2
(5) Brown DC+12V
(6) White GND
B. 7-core wire
(1) Red DC+5V
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