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5
Fan
Motor
F7
15A
SC-
15
F8
15A
SC-
15
24 0 VAC
24 0 VAC
BACK-UP
SWITCH
BACK-UP STEAM
SWITCH
OVER TEMP
SWITCH
CONTROL CIRCUIT BOARD
HEATER RELAYS
F4
20A
SC-
20
F5
20A
SC-
20
F6
20A
SC-
20
HR2
F1
20A
SC-
20
F2
20A
SC-
20
F3
20A
SC-
20
LIGHT GUARD
INTERLOCK SWITCH
MR1
LR1
LR1
MR2
LAMP2
LAMP1
10
14
16
13
15
11
MR3
PUR
YEL
PUR
YEL
12
24
20
21
19
18
RED
BLK
WHT
GND
GND
60
62
T1
24 VAC CT
33
JP35
JP21
36
36
36
36
JP12
JP1
JP14
JP15
JP11
JP13
JP2
VENT SOLENOID
VS1
44
SW7
DOOR SWITCH #2
24 VAC CT
T2
GND
10
31
32
FWD/REVERSE
MOTOR RELAY -
LIGHT RELAY
DOOR SWITCH #1
WATER SOLENOID
BACK-UP T-STAT
BACK-UP SWITCH
SW2
SW4
SW2
MR1
MR2
LR1
SV1
36
35
32
30
45
47
MR3
HI/LOW SPEED
MOTOR RELAY-RUN
35
SW6
35
SW3
SW1
46
BACK-UP SWITCH
34
36
36
39
36
35
42
43
38
41
62
46
JP40
60
RTD
48
17
LAMP4
LAMP3
HR2
37
34
HR1
2
4
HEATER6
1
HEATER5
6
HEATER4
3
HEATER3
HEATER2
5
HEATER1
208-240V SINGLE PHASE
208-240V THREE PHASE
L1 L2 L3
L1 L2 L3
SERVICE ENTRANCE TERMINAL BLOCK CONNECTIONS
1A,3A,5A
2A,4A,6A
1A,4A
2A,5A
3A,6A
2A
6A
HR2
HR1
2
4
6
4A
55
54
53
50
51
52
1A
5A
3
5
1
HR1
HR1
HR2
3A
2A
1A
CAPACITOR
GP3
GP4
GP4
GP3
40
SW5
42
14
COOLING FAN
CF1
ECSF-EZ (OCE) ENVIRO ZONE 208-240V THREE PHASE
146-799-04 Rev. D
WIRING DIAGRAM