Thermostat Location SG Models | Empire Products GWT-25-2, GWT-35-2

THERMOSTAT LOCATION (SG MODELS)

CAUTION — Do not run wire behind ﬂanges of Header Plate or in any location where it might be damaged.

Millivolt wall thermostats are specially designed for use on self- generating systems. They should never be used on line or low voltage A.C. circuits.

Interior Wall — The thermostat should be installed on an inside wall away from the furnace but in the same room.

Note: Use 16 gauge wire to prevent excessive loss of milli- volts.

Proper operation depends on a good pilot ﬂame. The ﬂame must cover the top of the thermopile. Cleaning of the pilot oriﬁce and burner may be required due to spiders.

System Check (Figure 7)

A millivolt meter is required to check the system. Millivolt readings should be:

•Across the thermopile terminals, 400-450 millivolts with thermostat OFF.

•Across the thermopile terminals, 150-250 millivolts with thermostat ON.

•Across the thermostat wires at the valve, less than 30 millivolts with thermostat ON.

•Across the thermostat wires at the thermostat, less than 5 millivolts with thermostat ON. (Dirty pilot or low pressure will reduce readings.)

Connect thermostat wires to gas valve as shown in Figure 7.

Figure 7

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GWT-35-2, RB), GWT-25-2 specifications

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