126
Procedure
HE
Electronic expansion valve coil
connection on main PCB is loose
1
Yes
Ensure the sensor is connected properly
No
Electronic expansion valve coil has
malfunctioned
2
Yes
Replace the EXV
No
Replace outdoor main PCB
Notes:
1.
For SCV-750EB and SCV-1400EB, electronic expansion valve coil connections are port CN70, CN71 and CN72 on the main PCB (labeled 31, 32, 30 in Part 4,
2.2.1 Main PCB component). For SCV-900EB and SCV-1800EB, electronic expansion valve coil connections are port CN70, CN71 and CN72 on the main PCB
(labeled 22, 20, 21 in Part 4, 2.2.1 Main PCB component).
2.
The normal resistances between EXV coil wiring terminals is 40-50Ω. If any of the resistances differ from the value, the EXV coil has malfunctioned.
Содержание SCV-1400EB
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Страница 46: ...44 1 Electric Control Box Layout For SCV 750EB For SCV 1400EB...
Страница 61: ...59 3 Wiring diagram 3 1 Single unit For SCV 750EB and SCV 1400EB...
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