Amazing Machinery NHP Series, Operator'S Manual, Page: 8 / 26

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AMAZING MACHINERY
2288 Gunbarrel road, Suite 111-151  ChattanooGa, tenneSSee 37421  Phone: 1-800-504-7435 Fax: 1-800-504-7436
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HEAT EXCHANGER COILS

Hard water conditions may eventually cause clogging in the heat exchanger. If
so it may be necessary to descale coil, since scale deposits will compromise
the heating efficiency and produce an unsafe condition.

Scale buildup from certain detergents may eventually clog up the heat
exchanger coil causing an unsafe condition. Use only AMAZING MACHINERY™
recommended detergents for better cleaning efficiency.
COIL DESCALING:

Mix in a 5 gallon pail, one pound of deliming powder for every gallon of water used.

Attach one end of a 4-6 foot length of rubber hose to the water intake connector
and insert the other end into the thoroughly mixed deliming solution.

Remove the trigger gun from the high pressure hose and place the hose end into
the mixed deliming solution.

Turn pump motor switch “ON”, allowing even water flow from the pickup hose in
the deliming solution through the pump, plumbing, coil and hose, returning back to
the solution container. DO NOT TURN THE BURNER ON.

Continue to circulate solution for as long as it takes to clear the build-up
(may require multiple treatments).

Re-install the trigger gun. Flush the system with clean water.
FAILURE TO MAINTAIN HEAT EXCHANGER COIL MAY
RESULT IN A STEAM EXPLOSION WHICH MAY CAUSE
SERIOUS INJURY OR DEATH.
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WARNING
MaintenanCe inStruCtionS
ENGINE MAINTENANCE

Every time (before start): Check oil level.

First 8 hours: Change oil.

Every 25 hours: Change oil if operating under heavy load or high ambient temperature.
Service air cleaner pre-cleaner.

Every 50 hours: Change oil. Clean and inspect spark arrester if equipped.

Every 100 hours: Service air cleaner cartridge, replace oil filter (if equipped),
Clean oil cooler (if equipped), Clean cooling system.
PUMP MAINTENANCE

Fill crankcase to dot on oil gauge window per specifications with 30W Nondetergent Oil.

Change oil after 40 Hour break-in Period.

Change oil every Three Months or at 500 Hour Intervals thereafter.