CHUNLAN FRD50-B - FRD50-B Signal Line Terminals; FR71-B Signal Line Terminals; Signal Line Terminals for FRD23-B and FRD35-B; Numbers and Meanings of each Signal Line & Terminal

Circuit diagrams
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II. Numbers and meanings of each signal line & terminal
1. Signal line terminals for FRD23-B and FRD35-B
(1) Brown Compressor
(2) Blue Power supply line N
(3) Yellow/green Earthing line
(4) Black Outdoor motor
(5) White Reversing valve coil
2. FRD50-B signal line terminals
(1) Brow Compressor
(2) Blue Power supply line N
(3) Yellow/green Earthing line
(4) Black Outdoor motor
(5) Red Reversing valve coil
3. FR71-B signal line terminals
(1) Black Outdoor fan motor
(2) Purple Outdoor fan motor
(3) Red Outdoor fan motor
(4) Gray Reversing valve coil
(5) White Compressor AC contactor coil
L: Phase line feedline of power cable (user supplied)
N: Zero line feedline of power cable (user supplied)
L’: Phase line of indoor-outdoor connecting cable of power connecting cable (user supplied)
N’: Zero line of indoor-outdoor connecting cable of power connecting cable (user supplied)
4. FRD71-B signal line terminals
(1) Indoor-outdoor connecting cable (user supplied) for outdoor fan motor
(2) Indoor-outdoor connecting cable (user supplied) for outdoor fan motor
(3) Indoor-outdoor connecting cable (user supplied) for reversing valve coil
(4) Indoor-outdoor connecting cable (user supplied) for compressor AC contactor coil
L: Indoor-outdoor connecting cable (user supplied) power supply phase line
N: Indoor-outdoor connecting cable (user supplied) power supply zero line