MAINTENANCE
To guarantee trouble free operation of this heater, the manufacturer suggests following these guidelines. Most problems associated with fan failures are directly related to poor service and maintenance.
Please record any maintenance or service performed on this fan in the documentation section located at the end of this manual.
WARNING: DO NOT ATTEMPT MAINTENANCE ON THE HEATER UNTIL THE ELECTRICAL SUPPLY HAS BEEN COMPLETELY DISCONNECTED AND THE MAIN GAS SUPPLY VALVE HAS BEEN TURNED OFF.
General Maintenance
1.Fan inlet and approaches to ventilator should be kept clean and free from any obstruction.
2.Motors are normally permanently lubricated. Check bearings periodically. If they have grease fittings lubricate each season. Use caution when lubricating bearings, wipe the fittings clean, the unit should be rotated by hand while lubricating. Caution: Use care when touching the exterior of an operating motor. Motors normally run hot and may be hot enough to be painful or cause injury.
3.All fasteners should be checked for tightness each time maintenance checks are preformed prior to restarting unit.
4.Blowers require very little attention when moving clean air. Occasionally oil and dust may accumulate causing imbalance. If the fan is installed in a corrosive or dirty atmosphere, periodically inspect and clean the wheel, inlet and other moving parts to ensure smooth and safe operation.
If the flame safety control is locked out (alarm light on), reset the unit by:
1.Turn OFF Power to the unit.
2.Turn Power to the unit back ON.
Emergency shutdown of unit
To shut down the unit in the event of an emergency do the following:
1.Turn power OFF to the unit from main building disconnect.
2.Turn the external disconnect switch to the OFF position.
3.CLOSE the inlet gas valve located on the heater.
Prolonged shutdown of the unit
For prolonged shutdown the following steps should be done:
1.Turn the external disconnect switch to the OFF position.
2.CLOSE the inlet gas valve located on the heater.
To
1.Turn the external disconnect switch to the ON position.
2.OPEN the inlet gas valve located on the heater.
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