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OPERATING INSTRUCTIONS
7. If use of the auxiliary outlet is desired, plug in auxiliary equipment and move
auxiliary switch to the ON position.
8. Do not allow the machine to operate in the bypass mode (with the trigger
gun closed) for more than three minutes without triggering the gun. Failure
to follow this simple rule can cause premature failure of the pump packings.
HOT WATER OPERATION:
WARNING RISK OF BURN! THE WATER TEMPERATURE COULD
BECOME VERY HOT DURING HOT WATER OPERATION.
CAUTIOUS WHEN ADJUSTING PRESSURE OR CONTROLLING
THE TRIGGER GUN/LANCE ASSEMBLY.
1. Follow preceding steps 1-7 for "Start-up / Cold water operation".
2. Move the Burner switch to the ON position and trun the adjustable thermostat
to the desired setting.
3. Recheck the system for fuel leaks. If a fuel leak is found, TURN MACHINE
OFF IMMEDIATELY! See "Risk of Explosion or Fire" warnings. Be sure
that all damaged parts are replaced and that all mechanical problems have
been corrected prior to operation of the unit. Contact Customer Service
if necessary.
Note: Upon initial start-up, water will begin turning hot in approximately
20 seconds and will reach maximum temperature within 2-1/2 min-
utes providing that the trigger gun remains open. The burner will not
fire when the trigger is released.
STEAM OPERATION:
STANDARD UNITS:
On standard units, the 25° (GREEN) steam nozzle is used for 250°F Wet
Steam operation. This nozzle is sized for operation with the unloader and
steam valve (where applicable) to provide high pressure wet steam. Replace-
ment of this nozzle with an improperly sized nozzle may cause operational
problems with the machine.
STANDARD UNITS - HDS-3005/3505/3506:
1. Install 25° (GREEN) steam nozzle into dual lance assembly.
2. Follow "Hot Water Operation" start-up procedures.
3. Turn steam valve completely counterclockwise to achieve maximum outlet
temperature (250°F).
STANDARD UNITS - HDS-4005 (AND UNITS WITH HX-0150, HX-0151 AND
HX-0152 OPTIONS):
1. Install 25° (GREEN) steam nozzle into dual lance assembly.
2. Follow "Hot Water Operation" start-up procedures.
Note: Upon initial start-up, water will begin turning hot in approximately
20 seconds and will reach maximum temperature within 2-1/2 min-
utes providing that the trigger gun remains open. The burner will not
fire when the trigger is released.
STEAM OPTION
STEAM OPTION - 300°F OUTLET TEMPERATURE:
1. Remove the high pressure hose and replace it with the steam hose. Install
steam nozzle assembly into dual lance.
2. Gently turn unloader knob counterclockwise to minimum factory setting.
3. Follow "Hot Water Operation" start-up procedures.
4. Move Steam switch to the ON position.
5. Turn adjustable thermostat clockwise to the maximum setting. If a lower
Operator's Manual
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17
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