M
Blue
Brown
Yellow
Orange
Red
White
Parts name
Check points
Disconnect the connector then measure the resistance using a tester. (Surrounding temperature 10
:
~30
:
)
Disconnect the connector then measure the resistance using a tester. (Part wiring temperature 20
:
)
•Thermistor (TH1)
<Discharge temperature detection>
•Thermistor (TH2)
<Low pressure saturated
temperature detection>
•Thermistor (TH5)
<Pipe temperature
detection / judging defrost>
•Thermistor (TH6)
<Outdoor temperature detection>
•Thermistor (THHS A/B)
<Radiator panel>
PUMY-125VMA, VMA
1
•Thermistor (THHS)
<IPM radiator panel
temperature thermistor
detection>
PUMY-71VM,VM
1
,VM
2
PUMY-125VM,VM
1
,VM
2
PUMY-125YM,YM
1
PUMY-125YMA
Normal
160k
"
~410k
"
4.3k
"
~9.6k
"
TH1
TH2
TH5
TH6
Abnormal
Open or short
Measure the resistance between the terminals using a tester. (Part wiring temperature 20C
°
)
4-way coil
w
2
(21S4)
Normal
1434
"
Normal
White - Red
Yellow - Brown
Orange - Red
Blue - Brown
Abnormal
Abnormal
150
"
±
10%
Open or short
Normal
1500
"
Abnormal
Open or short
Open or short
Measure the resistance between the terminals using a tester. (Part wiring temperature 20C
°
)
Solenoid coil
w
3
(SV1)
Measure the resistance between the terminals using a tester.
(Part wiring temperature 20C
°
)
Expansion valve
(SLEV
w
1)
Only PUMY-125VMA model
w
1 LEV(A)
w
2 4-way valve (21S4)
w
3 Solenoid valve (SV)
Fan motor (MF1,2)
Normal
107.5
"
±
10%
128.0
"
±
10%
Motor lead wire
Abnormal
Open or short
White — Blue
Blue — Red
Red
White
Blue
Orange
Protector
Opening and closing temperature of protector.
Open:
135
i
5
°
C (Fan motor OFF)
Close:
86
i
15
°
C (Fan motor ON)
THHS A/B
THHS
39k
"
~105k
"
8-7. HOW TO CHECK THE PARTS
PUMY-71VM
PUMY-71VM
1
PUMY-71VM
2
PUMY-125VM PUMY-125VM
1
PUMY-125VM
2
PUMY-125YM PUMY-125YM
1
PUMY-125VMA PUMY-125VMA
1
PUMY-125YMA
87
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