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32˚F
0˚C
20
STORAGE & MAINTENANCE
through the system. Allow process to continue for 2-4 hours (Consult
deliming agent package directions for exact time).
4. Once process is complete, turn off engine. Drain and clean the float tank,
remove the nylon stocking, and clean the gun and wand assembly.
5. Flush the entire system with clean, fresh water and place the nozzle in the
wand assembly.
6. Dispose of deliming solution according to local, state, and federal regulations.
TEST VOLTAGE AND AMP DRAW - Use a voltmeter and amp meter to test
the machine for correct voltage and amperage. If you do not have these
instruments or are unsure of how to perform these tests, this procedure
should be performed by an authorized service technician.
INSPECT BURNER FUEL PUMP INTERNAL FILTER – This procedure should
be performed by an authorized service technician.
CHECK BURNER ELECTRODES - This procedure should be performed by
an authorized service technician.
REPLACE FUEL NOZZLE - This procedure should be performed by an au-
thorized service technician.
MAINTENANCE-SEASONAL:
NOTE: Proper winterizing is based on the recommended manufacturer's
instructions listed on the "Protection Chart" shown on the back label
of most antifreeze containers.
WINTERIZING: For storage and transportation purposes in subfreezing am-
bient temperatures, it will be necessary to winterize this unit. This unit must
be protected to the lowest incurred temperature for the following reasons:
1. If any part of the pumping system becomes frozen; excessive pressure
may build up in the unit which could cause the unit to burst resulting in
possible serious injury to the operator or bystanders.
2. The pumping system in this unit may be permanently damaged if frozen.
FREEZE DAMAGE IS NOT COVERED BY WARRANTY.
If you must store your unit in an area where the temperature may fall below
32°F, you can protect your unit by following one of the procedures listed
below.
WARNING RISK OF UNIT BURSTING. DO NOT STORE / OPERATE
UNIT IN A FREEZING ENVIRONMENT!
AIR BLOWOUT:
1. Remove the nozzle from the wand assembly. Squeeze the trigger until
water ceases to exit the wand assembly.
2. Connect an air fitting from an air hose to the strainer fitting in the float tank.
3. Run compressed air into the system to remove all water from the system.
ANTIFREEZE SOLUTION:
1. Pour a mixture of antifreeze and water into the float tank.
2. Place the detergent strainer into 100% antifreeze solution
3. Turn the switch to the "Pump" position. Allow antifreeze to siphon throughout
the system until antifreeze solution exits the outlet. (To ensure the coil is
winterized, antifreeze solution must exit the outlet. Add more antifreeze
solution mixture to the float tank if necessary.)
4. Store antifreeze solution for future use or dispose of according to state
EPA laws.
HDC-SERIES Operator's Manual
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