COMBAT® UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL
Figure 10: Automatic Burner Control Sequence
If at any stage the flame fails, the control will retry for ignition. The control has four trials for ignition before a one hour lockout.
Figure 11: Gas Valve for Models UHA[S] 150 - 400
| Top View |
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| Regulator |
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End View | ½PSI |
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| C |
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| IN |
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| ON |
Gas Inlet | OFF | Outlet |
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| Pressure | |
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| Description | Part Number |
| Gas Valve 150 - 225 NG | 90032505 |
Inlet Pressure | Gas Valve 150 - 225 LP | 90032506 |
| Gas Valve 250 - 400 NG | 90032520 |
| Gas Valve 250 - 400 LP | 90032521 |
20 |
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