NorthStar M157117I.1 Owner's Manual page 40

Maintain burner's
fuel filter/water
separator
Descale heating coil
Maintenance & Repair
Drain water from burner's filter bowl as needed and replace filter after every
500 hours of use or as needed.
1) After each use of the burner, visually check the filter bowl. If any water has
accumulated, drain it via the water drain at the bottom of the bowl.
2) After every 500 hours of operation, empty the burner's fuel tank in order to
remove the filter bowl and inspect the fuel filter/water separator.
Replace filter as needed.
Important: Always drain the diesel fuel tank before removing the filter drain.
WATER DRAIN
Fig157117-10
Descale coil tubing annually or more frequently as needed.
If pressure washer is used where the water source contains a high mineral content,
or is considered "Hard Water", scale can build up inside the heating coil tubing.
Scale deposits will decrease the performance of pressure washer by reducing both
water flow and water pressure. The use of a water softener and an additional
strainer may be needed in areas that have high mineral content in the water supply.
More frequent descaling may be required if higher temperatures or steam mode is
used regularly. Descale the coil tubing more frequently if you detect a decrease in
pressure or temperature.
Choose a well-ventilated area and use the recommended PPE (personal protective
equipment) of the coil cleaning chemical manufacture when descaling the coil
and/or using coil cleaning chemicals. This may include, but is not limited to:
•
Rubber gloves
•
Goggles
•
Apron
Required supplies:
1) Coil cleaner
2) 5-gallon bucket
3) Circulating pump
4) Supply hose A
5) Supply hose B
6) Return hose
7) Hose barb fittings, if applicable
8) Hose clamps, if applicable
FILTER BOWL
DIESEL FUEL TANK
40