70
MUH-24RV -
MUH-30RV -
Outdoor deicer P.C. board
E1
E1
Varistor
(NR62)
Fuse
3.15A / 250V
Defrost
interval
time short
pin(JPG1,
R871)
(Refer to
page 50.)
}
12V DC
Jumper wire for
change in defrost
setting (JRF, JRG)
(Refer to page 50.)
}
5V
DC
+
+
CN661
1
-
2
Defrost ther-
mistor (RT61)
(Refer to
page 66.)
Temperature(
:
)
Discharge temperature thermistor(RT62)
Resistance(k
"
)
0 10 20 30 40 50 60 70 80 90 100 110 120
0
100
200
300
400
500
600
700
800
900
Defrost thermistor (RT61)
Ambient temperature thermistor (RT63)
-20 -10
0
10
20
30
40
0
10
20
30
40
50
60
70
80
90
100
Temperature(
:
)
Resistance(k
"
)
<MSH-30RV only>
CN662
1
-
2
Discharge temper-
ature thermistor
(RT62)
(Refer to page 66.)
CN662
3
-
4
Ambient tempera-
ture thermistor
(RT63)
(Refer to page 66.)
LEV
connector
(CN724)
Fan motor
connector
(CN711)
Varistor
(NR61)
CN730
1
-
3
220-240V AC
}
(Refer to
page 61,
62, 64 or
65.)
}
R601
10V DC
(Refer to
page 64 or
65.)
(Refer to
page 61 or
62.)
J101
J401
+
}
R.V. coil
(CN721)
OB272-3.qxp 02.1.26 1:24 PM Page 70