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Dynamo DPHPW 4000-HD - Operation Winterizing Procedure; After Using Your Pressure Washer; Switching OFF the LPG Hot Water Machine

Dynamo DPHPW 4000-HD
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17
Fuel
Butane or propane gas fired machines operate on 11” (6.36 oz) water column pressure.
This propane (LP) gas machine is equipped with a gas regulator. Therefore, the gas
regulator is of sufficient size and allows for pressure drop from the tank to the machine.
It must be installed on the LP tank properly. USE only original spare parts for this
machine.
Water filters
In order to ensure the lifetime of pressure washer. The machine is equipped with two
inlet filters which are place in the screw connections on the inlet before the LPG heater
and the inlet before the high pressure pump. The machine MUST NOT operate without
these inlet filters which prevent large particles and dirt from entering into the heater and
pump.
6.2 Operation winterizing procedure
FREEZE PREVENTION
The pump, plumbing and wash may burst by freezing water within them. To avoid costly repair:
1. Keep washer in a heated area where temperature exceeds 32 degrees F.
2. Keep all lines leading to the washer from being exposed to freezing temperatures.
3. During extended shutdown periods, thoroughly drain the water system, chemical system
and wash hose. Fill with anti-freeze solution.
4. Disconnect water supply.
5. Operate pump to expel all water from system.
6. Shut off pump and remove hose from pump outlet.
7. Start engine on LOW IDLE SPEED and empty the pump completely.
8. Connect small water inlet hose directly on the pump water inlet.
9. Place hose in RV antifreeze as a pump saver until some comes out the HIGH
PRESSURE outlet. A cut off garden hose and funnel may help.
7. After using your pressure washer
7.1 Switching OFF the LPG hot water machine
1. Move the thermostat to cold on LPG heater
2. Disconnect LPG gas regulator on the gas tank
3. Disconnect water inlet on the LPG heater
4. Disconnect nozzle tip
5. Open gun and run the machine for about 1 minute on LOW IDLE SPEED or until pump
is empty of water