COMBAT® UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL
14.4 Combustion Fan Vertical Installation
Rear Panel
Flue Adapter
Hole to Flue Fan screws
Vent Box 
Vent Box | Flue | |
Outlet Adapter | ||
Screws | ||
| Gasket | |
| Flue Fan | |
| Disconnect | |
| electrical connections | |
| at plug in tabs. |
Remove screws securing outlet flange to the flue adapter.
Refit in reverse order.
| Mounting | Vent Box |
|
| |
| Plate |
|
Gasket |
| Mounting Plate |
| to Vent Box | |
|
| Screws |
|
| Gasket |
Mounting Plate |
| Air Plate |
to Flue Fan |
| |
|
| |
Screws |
|
|
Remove screws securing flue fan mounting plate to vent box. Remove screws securing mounting plate to fan.
Refit in reverse. Use new gaskets. Ensure sealed joints.
Ensure mounting plate orifice is clear and not obstructed.
| UHA[S] | UHA[S] | UHA[S] |
MODEL | 150 - 175 | 200 - 300 | 350 - 400 |
|
|
|
|
Exhaust Fan P/N | 90710405 | 90710403 | 90710402 |
|
|
|
|
IT IS IMPORTANT THAT ONLY THE CORRECT COMBUSTION FAN SPECIFIED FOR EACH MODEL TYPE IS USED WHEN REPLACING THESE ITEMS.
Carry out a
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