Months - Mi-T-M Corporation HHM Serie Manual Del Operador

STORAGE & MAINTENANCE
MAINTENANCE-EVERY 3 MONTHS:
BURNER AIR ADJUSTMENT: The air shutter has been factory preset for
proper operation between sea level and 2000 feet elevation at
standard conditions (60°F ambient water and air temperatures).
In colder temperatures or higher altitudes, it may be necessary to
adjust the air supply to the combustion chamber. This adjustment
will maximize burner efficiency and avoid inefficient operation or
excessive sooting of the heat exchanger coil. A smoke spot test
is recommended during any air shutter and band adjustment. If
you do not have the equipment to perform a smoke spot test,
follow the procedures listed below.
. Turn the power switch on.
2. Loosen the Locking Screw (#3 at left) on the shutter.
3. Check for smoke from the heat exchanger exhaust. If smoke is
not present, slowly close the Air Shutter (#1 at left) by moving the
dial counterclockwise to a lower number. Continue moving the
dial until smoke appears.
4. Record this setting.
5. Open Air Shutter (# at left) two increments. Example: If Air
Shutter was set at 2, move it to 4.
6. Slowly trigger the gun on and off. This will cause the burner to
turn on and off. Look for a smoke puff when the burner ignites.
7. Repeat steps 5 and 6 until a smoke puff is noticed. Record the
Air Shutter Setting.
8. The difference between the recorded settings in steps 4 and 7
is the combustion window. Set the dial /2 way between these
settings.
NOTE: If you are unable to detect a setting on either step 3 or 7, more or less
air may be needed to achieve a proper combustion window. Loosen
the Bolt (#4 at left) and open the Air Band (#2 at left) in 1/4" increments.
Repeat steps 3-8 until proper combustion window is achieved.
TEST WATER & FUEL PRESSURE:
performed by an authorized service technician.
TEST WATER TEMPERATURE: This procedure should be performed by
an authorized service technician.
MAINTENANCE-EVERY 6 MONTHS:
REPLACE FUEL FILTER: Follow the instructions specified on the fuel
filter for correct procedures.
Operator's Manual
These procedures should be
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