Part Number 550-
SCHEMATIC WIRING DIAGRAM
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| (NOTE 6) |
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| MANUAL RESET | MANUAL RESET | |||||
| PRESSURETROL |
| PROBE LWCO | ||||
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| FLOAT LWCO | ||||
PRESSURETROL | & PUMP | ||||||
CONTROL | |||||||
| BK |
| BK |
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| BK |
IMPULSE
RELAY
R
R
MOMENTARY
SWITCH
R R
R
W
G
R
D
D
TH TR W
ROBERTSHAW GAS VALVE
W
BK
PILOT
SOLENOID
VALVE
BK W R
UNIVERSAL SPARK
IGNITION CONTROL
MV
MV/PV
EQUIPMENT | OPERATING | BK | |
GROUND | CONTROL |
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(NOTE 7) |
| (NOTE 9) |
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| Y | Y |
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Y
GR
R
R
PV
ALARM
ALARM
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| BK |
| THERMOSTAT |
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| OR EMCS |
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| G | |
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| BK | BK | (NOTE 5) |
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SERVICE |
| Y | W |
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SWITCH |
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G | G |
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(BY OTHERS) |
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| G |
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| G |
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H |
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| C | R |
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| BK |
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| BK | ||
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| TRANSFORMER |
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| 120/24 V.A.C. |
| G | |
N |
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| W |
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WIRE NUTS (2) |
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| DPST |
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| RELAY |
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| JUNCTION BOX |
| CABLE |
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| TO |
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| DAMPER |
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Y
R
G | R |
1 2 A 1
Y |
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DAMPER | CONNECTOR |
R
TERMINAL
BLOCK
A2
NOTE 10
Y
24V
G
24V (GND)
SENSE
SPARK
W O
PILOT
(NOTE 8)
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