WARNING
Electrical Shock Hazard
•Disconnect power before servicing.
•Replace all parts and panels before operating.
•Failure to do so can result in death or electrical shock.
* ROTATE LEFT (CCW) | SCREW |
TO REMOVE | |
COVER* |
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MOUNTING
BRACKET
FLAMMABLE
VAPOUR SENSOR (PULL TO REMOVE)
Figure 21 Flammable Vapour Sensor (exploded view)
FLAMMABLE
VAPOUR
SENSOR
IGNITER
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| BLOWER | ||
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| FLAME |
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| SENSOR |
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| CONNECTOR |
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| AIR PRESSURE |
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| GAS VALVE | ||
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| SOLENOID | |||
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| SWITCH |
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| HIGH LIMIT | GND | L1 |
| N |
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| POLARITY SENSITIVE DO NOT MIS- | |||
| SWITCH |
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| MATCH WIRING! FAILURE TO CONNECT |
Figure 22 Robertshaw Wiring Diagram - Control |
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| CORRECTLY WILL PREVENT THE UNIT | |
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| FROM FUNCTIONING PROPERLY. | ||
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GAS CONTROL | 3/4” NPT WRAP |
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| INLET |
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WITH TEFLON TAPE |
| PRESSURE |
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SWITCH (ON) |
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2 WRAPS MIN. |
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| PORT |
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| MANIFOLD | |||
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| GAS VALVE |
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| PRESSURE |
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| ADJUSTMENT | |
| SOLENOID |
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| CONNECTOR |
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| DIAL FOR |
| FLAMMABLE VAPOUR | 160F MAX. DIAL |
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| ACCESS) |
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| SENSOR 2 PIN |
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| MOLEX CONNECTOR |
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| QUICK CONNECTS |
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| GAS INLET |
| OUTLET | |
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| PRESSURE | |||
| FOR POWER SUPPLY |
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| 1/2” NPT |
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| AND IGNITER |
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| TERMINAL BLOCK BLOWER |
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| SYSTEM |
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| AND JUNCTION BLOCK 8 |
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| STATUS |
| LED INDICATOR | ||
| PIN MOLEX CONNECTOR | 140F MAX. DIAL |
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| CODES |
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OUTLET TO MANIFOLD |
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GROUND CONNECTION |
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DOOR ASS’Y (UNDER) |
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GAS |
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| GAS | ||
CONNECTORS, WITH COVER REMOVED |
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| WITH TEMPERATURE DIAL REMOVED | ||
Figure 23 Gas Control/Thermostat Details (Robertshaw)
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