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24
Sentry Tube Heaters
specified on the dataplate? If so, then no further
checking or adjustment is required. Proceed to
section C.
3. If the inlet pressures do not agree with that
specified on the dataplate, then the regulator
controlling gas pressure to the heater requires
adjustment.
4. If the inlet pressure is correct but the burner
manifold pressure does not agree with that
specified on the dataplate, then the pressure
regulator internal to the gas control requires adjust-
ment. Refer to the following instructions.
The burner box will need to be opened and closed/
latched as needed to accurately set the gas control
pressures.
5. If manifold gas pressure is different than dataplate,
remove the internal pressure regulator cap and
adjust the internal pressure regulator clockwise or
counter clockwise. See Fig. 27.
C. Completion
1. Close the fuel supply valve to the heater and allow
the heater to burn off any remaining fuel.
2. Disconnect the heater from its electrical supply.
3. Remove the gauges and associated hardware.
Install plugs in gas control valve and in connector.
Tighten all securely.
4. Reconnect hose and adapter to sediment trap.
tighten securely.
5. Open fuel supply valve and reconnect electrical
supply to heater. Start the heater and check for gas
leaks. Set thermostat to desired temperature.
Owner's Manual • Sentry
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