21
308219
Troubleshooting –
Electrical Resistance Checks
Heater Wiring Schematics
Heater No. 235840 is shown in Fig. 10. The wiring for
Heater No. 235839 is identical
except
the second set
of elements (wires 9, 10, 19, 20) are not used.
RESIN HEATER
ISO HEATER
Fig. 10
OPTIONAL ATC
P1
OPTIONAL
P1
STANDARD
P2
CONNECTOR
N.T.C
TEMP DIAL
A
B
J2
J1
G
MT2
MT1
M–
M+
WHT
WHT
BLK
BLK
4
3
2
1
–
–
+
+
LAMP
BOARD
A
B
C
LIMIT
THERMOSTAT
ELEMENTS
CIRCUIT BREAKER
1
2
3
4
5
6
A
A
B
B
CAL
POWER IN
TERMINAL BLOCK (TB)
OPTIONAL ATC
P1
OPTIONAL
P1
STANDARD
P2
CONNECTOR
N.T.C
TEMP DIAL
A
B
J2
J1
G
MT2
MT1
M–
M+
WHT
WHT
BLK
BLK
4
3
2
1
–
–
+
+
LAMP
BOARD
A
B
C
LIMIT
THERMOSTAT
ELEMENTS
CIRCUIT BREAKER
1
2
3
4
5
6
A
A
B
B
CAL
POWER IN
TERMINAL BLOCK (TB)
TRIAC
SENSOR
PROBE
10
8
9
1
2
11
12
7
D
C
T1
+ +
+ +
TRIAC
D
C
T1
+ +
+ +
SENSOR
PROBE
3
4
21
22
19
18
20
Summary of Contents for FOAM-CAT 200 Series
Page 33: ...33 308219 Notes...
