18
2
3
G
W
3
2
Y
1
BK
1
BK
G
W
(PS-122)
LWCO
Y
W
G
Y
BK
ON/OFF SWITCH
NEUTRAL (L2)
HOT (L1)
GROUND
W
24V THERMOSTAT
60 HZ, 1 Ø
120 VAC
R
PUMP
CIRCULATOR
COMMON
W
VAC
120
24 VAC
Y
EAEF03801
TRANSFORMER
CONTROL
BK
GAS VALVE
RECTIFIER PLUG
Y
2
DIAGNOSTIC INDICATOR LIGHTS
FLAME
VALVE
IGNITOR
PURGE
POWER
R
R
R
G
R
120VAC
3
2
1
P7
IGNITER
TO
CASTING
2
1
BLOWER
BLOWER
P10
G
3
W
2
BK
1
TRANSFORMER
PRIMARY
R
R
3
2
P1
1
1
P6
BLOWER
G
2
4
3
1
P5
W
BK
CASTING TEMPERATURE SAFETY SWITCH (MANUAL RESET)
BR
BL
W
V
BR
SET AT
+ 3.5" WC
SWITCH (N.C.)
AIR PRESSURE
DIFFERENTIAL
CONTROL
HI LIMIT
AQUASTAT
SET AT
+ 0.5" WC
BL
BR
AIR PRESSURE
DIFFERENTIAL
SWITCH (N.O.)
V
CIRCULATOR
2
4
3
1
P4
9
3
6
Y
24 VAC
SECONDARY
TRANSFORMER
1
4
7
8
5
2
BR
CONTROL
P3
1
2
V
1
3
P2
Y
2
Y
1
1013-10 INTEGRATED BOILER CONTROL
W
BK
(NOTE: USE COPPER CONDUCTORS ONLY)
NOTE: If any of the original wire as supplied with this appliance must be replaced, it must be replaced with type 150°C
Thermoplastic wire or its equivalent
.
ELECTRICAL WIRING
Figure 14A - Schematic Wiring Connections
Содержание UB90 125
Страница 30: ...30 SERVICE HINTS DETAILED SEQUENCE OF OPERATION ...
Страница 36: ...36 Troubleshooting Chart 2 TROUBLESHOOTING ...
Страница 39: ...39 Troubleshooting Chart 5 TROUBLESHOOTING ...
Страница 42: ...42 This Page Intentionally Left Blank ...
Страница 44: ...UTICA BOILERS 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com ...