Operator`s manual

PUREHEAT™ HYDRONIC AIR HEATER OPERATOR’S MANUAL – SECTION 3
V. 2, Rev. 09/01/06 © 2006 Ground Heaters, Inc. 3- 5
6. Once the Burner lights, sample the exhaust. Adjust the air band and shutter until combustion
parameters fall within the above outlined values.
7. Lock the air band and shutter in place by tightening the locking screws.
Do not exceed 150 psi fuel pressure
Do not set below 125 psi fuel pressure
3.2.2 Burner Shutdown
1. Shut down the Burner by turning the BURNER Switch OFF.
2. Turn both MAIN BREAKERS OFF.
3. Separate the fuel Quick-Connects and remove the fuel pressure gauge. Reinstall the pressure tap
plug.
4. Reconnect the fuel Quick-Connects.
NOTE: You may need to install a smaller nozzle at high elevations or if the ambient temperature falls below
10ºF (-12ºC). The table below shows the approximate firing rate at various fuel pressures with the
5.0 GPH nozzle:
Fuel
Pressure
psi
Firing
Rate
GPH
125 - 5.59
130 - 5.70
140 - 5.92
150 - 6.12
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