North Star 157394 - Manual (Page 8)

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HOT WATER OPERATION
1. Fill fuel tank with 1.8 gallons of #l or #2 Diesel.
2. Be sure trigger gun is locked in the “OFF” position and remove the nozzle/wand assembly.
3. Turn the unit on by pushing the pump switch on the control panel. Once the unit starts, squeeze
the trigger gun “ON” for 2 minutes to purge all air and mineral deposits from the system.
4. Turn the pump switch to “OFF” position, release the trigger gun and lock in the “OFF” position.
Connect the nozzle-wand assembly to the gun assembly. To ensure you are in the high pressure
mode, turn the nozzle to the right.
5. Turn the pump switch to “ON” position, turn the burner knob located on the control panel to “ON”
(position 1) Squeeze the trigger gun to spray, burner only fires when the trigger is squeezed.
6. Do not allow the unit to operate in the bypass mode (trigger not squeezed) for more than 3
minutes. Failure of pump packing may result
7. The unit is now ready to be used as a hot water pressure washer. Squeeze the trigger-gun to spray
a high pressure stream, and release the trigger to stop the stream.
8. Cool down the heat exchanger by turning the burner knob “OFF” (0 position). Allow unit to run
with trigger in the squeezed, “ON” position for at least 3 minutes.
NOTE:
On initial startup, water will begin turning hot in 30 seconds, reaching maximum temperature in 3 minutes with
trigger squeezed. Burner stops firing when the trigger is released or when water exceeds the temperature setting.
!
CAUTION!
EXPOSED METAL EXHAUST OUTLET AND HOSE
CONNECTIONS DURING HOT OPERATION ARE EXTREMELY
HOT!