42
MUH24WN
Outdoor deicer P.C. board
Fuse
3.15A / 250V
Defrost
interval
time short
pin(JPG1,
R871)
(Refer to
page 29.)
}
12V DC
Jumper wire for
change in defrost
setting (JRF, JRG)
(Refer to page 29.)
}
5V
DC
+
+
CN661
1
-
2
Defrost thermistor
(RT61)
(Refer to page 40.)
Temperature(
-
F)
Discharge temperature thermistor(RT62)
Resistance(k
"
)
32 50 68 86 104 122 140 158 176 194 212 230 248
0
100
200
300
400
500
600
700
800
900
Defrost thermistor (RT61)
Ambient temperature thermistor (RT63)
-4
14
32 50
68
86 104
0
10
20
30
40
50
60
70
80
90
100
Temperature(
-
F)
Resistance(k
"
)
CN662
1
-
2
Discharge
temperature
thermistor (RT62)
(Refer to page 40.)
CN662
3
-
4
Ambient
temperature
thermistor (RT63)
(Refer to page 40.)
LEV
connector
(CN724)
Fan motor
connector
(CN711)
CN730
1
-
3
208/230V
AC
}
(Refer to
page 37.)
(Refer to
page 37.)
J101
J401
}
R.V. coil
(CN721)
OB310--2.qxp 04.1.13 9:50 AM Page 42
