MAINTENANCE
Prior to starting any maintenance work, wait until unit cools down fully and fan shuts off
before unplugging unit and beginning any maintenance work.
(Shut Down Procedures page 6)
To ensure the proper function of the unit, it must be serviced on regular basis. Maintenance can
be performed, (excluding the control devices and safety limit controls), by an authorized trained &
certified Heat Wagon dealer. The control devices and safety limit controls do not need routine
maintenance. If these items fail they must be replaced.
- Do not use any aggressive cleaning agents (which are harmful or environmentally
unfriendly), when cleaning the unit.
- Do not use water jet when cleaning the unit.
- Pressurized air may be used for maintenance. Be careful not to damage the fan blower wheel
with too much pressure.
- Check whether the unit is free from mechanical damage. Replace faulty parts as necessary.
- Check fan blower wheel at regular intervals and clean it when needed.
- Check functionality of control and safety devices regularly.
- Have the flue gas values of the burner checked regularly by authorized agents.
- Be sure to store the unit in a dust free and dry place when it is not used for a long period of
time. Cover the exhaust flue to prevent entry of foreign objects.
SERVICE
• The complete unit, including heat exchanger, combustion chamber and burner should be
cleaned from dust and dirt after every heating period, at a minimum of once per year.
-Removal of combustion chamber/heat exchanger:
For proper cleaning of the unit, manufacturer recommends removal of the complete
combustion chamber with heat exchanger. Clean combustion chamber and heat exchanger tube
with a brush. Vacuum all loose ash and soot. Close all cleaning flanges carefully to avoid damage
to gasket material.
-Disassembling of burner:
1. Disassemble four tightening bolts on the combustion chamber flange and remove burner’s
mounting flange. Take care not to damage the flange seal.
2. Pull out the burner. Take care not to damage the burner head and power cable. Clean blower
wheel, ignitor electrodes, and photocell. Replace fuel nozzle and fuel filter.
Refer to seperate burner manual for adjustment of burner.
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