Hatco c-12 用户指南

Form No. PMG-100/200M-0805

1

The Hatco Powermite Gas Booster Heater is
designed to maintain a temperature of 180°F 
(82°C) water required for the rinse cycle of a
commercial dishwasher. An inlet water temperature
of at least 110°F (43°C) will produce optimum
results (See Capacity Chart and Booster Heater
Sizing Chart in SPECIFICATIONS).

After the necessary power, water and gas
connections are completed, start the unit by turning
on the toggle switch located on the lower front base.
The water circulating pump will start at this time.
Providing the operating and safety controls are
satisfied, the ignition module will begin a 20 second
safety pre purge, next it will energize the spark
igniter and turn on the gas for the pilot. The igniter
will spark for about 90 seconds or until proof of fire.
If there is a confirmed pilot fire, and the water
temperature is below the setpoint, the unit will go
into full burn. The unit will stay in full burn until the
desired setpoint temperature is met, then the burner
will shut off. During standby periods of limited use,
the burner will cycle on only to replace standby
water temperature loss. If for some reason the unit
did not ignite there is an automatic 5 minute delay
before the unit attempts to ignite again.

If the unit overheats above the setpoint temperature,
the safety high limit will open, shutting down the
burner, locking out the controller, and turning on the
alarm pilot light. In order to reset the unit, turn the
unit off and depress the reset button on the
appropriate high limit switch, the tank high limit is
located behind front panel on the left hand side of
the vertical control panel. The heat exchanger high
limit is located on the front of the heat exchanger.
The switches will not reset until the temperature has
dropped to a safe level. This unit must remain off for
at least 10 seconds before it can be restarted.

Water enters the booster heater at the inlet water
connection and flows into the stainless steel tank. It
then is pumped through the finned tube heat
exchanger where it is heated to the proper
temperature. The heated water then returns back to
the top half of the stainless steel tank for supply to
the dishwashing machine. Water that is not
immediately used by the dishwashing machine is
recirculated through the heat exchanger by the
water pump.

This system is designed to assure the availability of
the proper temperature water at the heater outlet.

All Hatco booster heaters are warranted to be free
of defects in material and workmanship under
normal use and service, and when installed in
accordance with factory recommendations.