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11

IV.) To Start

DANGER: Do not point the spray wand at yourself or
at any person.  Bodily injury may result from hot
water or water under high pressure.
WARNING: Wear eye, ear, hand, foot, and skin
protection at all times while operating this water
heater.

1.  Turn water supply ON.
2. Squeeze the trigger to allow air to purge from the

system.  This step goes faster with the pressure
nozzle removed.

V.) Turn Your Pressure Washer ON.

1.  Follow your pressure washer’s manual for its start-up

procedure.

VI.) Turn The Water Heater ON

1.  Make sure there is fuel in the fuel tank.
2.  Turn the heat switch ON, and adjust the thermostat to

the desired temperature.

3. The burner will fire when the trigger is squeezed.

You may need to initially adjust your burner for peak
performance.  See the “Oil Burner” section under
INSTALLATION.

4. When the trigger is released or the temp setting is

reached, the burner will automatically turn off.

IMPORTANT: Do not run the machine in hot mode
without any fuel in the fuel tank. The fuel pump will
be damaged if it is run dry.

VII.) To Clean

WARNING: Wear eye, ear, hand, foot, and skin
protection at all times while operating this water
heater.
DANGER: Do not point the spray wand at yourself or
at any person.  Bodily injury may result from hot
water or water under high pressure.
CAUTION: Be careful on painted or delicate
surfaces. The pressure may damage the surface if
the nozzle is too close.
WARNING: Only use NorthStar pressure washer
chemicals or chemicals specifically formulated for
pressure washers. Follow the chemical
manufacturer’s recommendations.  Understand all
safety precautions and first aid for all chemicals.

1. If your pressure washer is equipped with a quick

connect chemical injector, it can be snapped onto the
high pressure water outlet. Then snap the high
pressure hose to the injector and submerge the
suction strainer into the chemical solution.

2. If your chemical injector cannot be moved to the

water heater’s outlet, it is acceptable to run chemicals
through the heating coil.  Only use NorthStar
pressure washer chemicals or chemicals specifically
form-ulated for pressure washers, and make sure
that the coil is flushed completely with clean water
after chemical use.

3.  Spray detergent onto the surface and allow it to soak.

Chemicals need time (dwell time) to work properly.
Follow the chemical manufacturer’s
recommendations for dwell time.

4.  Hold the lance with two hands.  Have a sturdy stance.
5.  Point lance at dirty surface and squeeze trigger.
6.  Wash from the bottom to the top, using side to side

motions.  This washes away heavy dirt and allows the
detergent to soak as you work toward the top.

7.  Use the width of the spray pattern to wash in a wide

path.  Overlap spray paths for complete coverage.

8. The nozzle should be 12” to 24” from the work, closer

for tough areas.

Caution: Be careful on painted or delicate surfaces.
The pressure may damage the surface if the nozzle
is too close.

9. Small parts should be washed in a basket so the

pressure does not push them away.  Larger, light-
weight parts should be clamped down.

VIII.) To Stop

1.  If detergents were used, draw clear water through the

detergent inlet line to purge detergent. Failure to do
so may clog the chemical injector.

2.  If the burner was used, turn off the “Heat” switch and

pump cold water through the coil for 3 minutes.
Insufficient cool down period of high pressure hose
will cause excessive wear and eventual rupturing of
hose.

3.  Turn the pressure washer OFF.
4.  Turn OFF the water supply.
5.  Squeeze the trigger to relieve the system pressure.

Strainer

Chemical Injector

High Pressure Hose

00322

Water Outlet

Diluted
Chemical

Adjustment Knob

Summary of Contents for 157494

Page 1: ...e s life and prepare you for its safe operation Enjoy the exceptional performance of your NorthStar water heater the industry leader The manufacturer reserves the right to make improvements in design...

Page 2: ...eling this machine 7 Keep operating area clear of all persons 8 Do not overreach or stand on unstable support Keep good footing and balance at all times Wear footwear capable of maintaining a good gri...

Page 3: ...eater is provided with a ground fault circuit interrupter GFCI built into the plug of the power supply cord This device provides additional protection from the risk of electric shock Should replacemen...

Page 4: ...Rise 190 F 2GPM 190 F 3GPM 140 F 4GPM Maximum Temperature 250 F Approved Fuels 1 or 2 Diesel Kerosene Fuel Oil Fuel Capacity 4 gal Power Requirements NEMA Receptacle 5 15R Volts 115V Amps 5A Hertz 60H...

Page 5: ...Description Ref Description 1 Water Outlet 6 Fuel Tank 11 Safety Relief Valve 2 Control Box 7 Burner 12 Heating Coil 3 Heat Switch 8 Fuel Filter 13 Water Inlet pressure washer 4 Thermostat 9 Exhaust...

Page 6: ...n Instructions I Unpack Separate and identify all components Use the assembly instructions in this manual for assembly Handle Grip Qty 2 Hardware Bag Qty 1 Wheel Qty 2 Water Heater Qty 1 Remove 2 reta...

Page 7: ...7 Hardware Bag Owner s Manual 4X 5 16 X 75 Flange Bolt 4X 5 16 Flange Nut 2X 5 8 X 3 5 Hex Bolt 2X 5 8 Hex Nut 2X 5 8 Jam Nut...

Page 8: ...the Moving and Handling section on page 16 Do not try to lift the unit by the hook on the heating coil inside the heat exchanger The heating coil is not secured to the frame To attach handles use 5 16...

Page 9: ...for the amount of fuel being burned If it is necessary to install a unit in a poorly ventilated area outside fresh air may have to be piped to the burner and a fan installed to bring sufficient air i...

Page 10: ...ceptacle 5 15R 2 Connect outlet of your pressure washer to inlet of the water heater Your NorthStar Water Heater is equip ped with quick connect fittings as are all NorthStar pressure washers Slide th...

Page 11: ...e snapped onto the high pressure water outlet Then snap the high pressure hose to the injector and submerge the suction strainer into the chemical solution 2 If your chemical injector cannot be moved...

Page 12: ...valve will open and relieve system pressure WARNING If the safety relief valve ever discharges water turn the unit off and do not use the machine See a dealer or call Customer Service at 1 800 270 08...

Page 13: ...ng Description Part Number Flow Switch 37537 Inlet Hose 37538 Electrode Kit RWB5780U Fuel Pump RWB21844U Ignitor RWB51771U Fuel Filter Element RCR12T Pressure Gauge MV32154 II Maintenance Mode Before...

Page 14: ...strainer when finished VIII Coil Desooting Poor grades of fuel oil or inadequate combustion air will cause heavy soot build up on the outside surface of the heating coil These deposits will insulate t...

Page 15: ...to disconnect the fuel lines or the electric cords but be careful not to subject them to excessive strain Also make sure the fuel filter does not get damaged 3 Let the burner fall away from the heat...

Page 16: ...it outdoors before starting Follow these instructions to prevent the heat exchanger coil from freezing during storage Winter Storage Items needed 12 piece of garden hose or equivalent funnel and RV a...

Page 17: ...lity fuel Use Kerosene for the cleanest burn Water Not Heating Sufficiently Causes Solutions Scale build up in coil See Coil Descaling under Maintenance Instructions Coil is full of soot See Coil Deso...

Page 18: ...18 157494H 157494 Parts Breakdown...

Page 19: ...4 Leather Washer 4 24 37524 Left Handle 1 25 4045 Fuel Cap 1 26 777319 Fuel Tank 4 Gallon 1 27 2263 Hose Clamp 1 2 1 28 777340 1 4 NPT x 1 4 Hose Barb 3 29 171410 Hose Clamp 1 4 4 30 777345 Fuel Line...

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Page 21: ...21...

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