8.917-208.0 • HOT • Rev. 05/17
15
PRESSURE W
ASHER
OPERA
TOR’S MANU
AL
To Adjust: Start machine and turn burner ON.
Loosen two locking screws found in the air shutter
openings (refer to illustration) and close air shutter
until black smoke appears from burner exhaust vent.
Note air band position. Next, slowly open the air
shutter until white smoke just starts to appear. Turn
air shutter halfway back to the black smoke position
previously noted. Tighten locking screws.
If the desired position cannot be obtained using
only the air shutter, lock the air shutter in as close a
position as can be obtained, then repeat the above
procedure on the air band setting.
Initial Air Adjustments: Allow sufficient air to obtain
a clean burning flame by loosening the lock screws
and moving the air shutter and if necessary the bulk
air band. Reduce the air supply until the flame tips
appear slightly smoky, then increase the air just
enough to cause the flame tips to appear absolutely
clean.
Removal of Soot and Heating Coil
In the heating process, fuel residue in the form of
soot deposits may develop between the heating
coil pipe and block air flow which will affect burner
combustion. When soot has been detected on visual
observation, the soot on the coil must be washed off.
Follow these steps to remove the coil.
1. Disconnect hose from pump to inlet side of the coil.
2. Disconnect electrical connection to the thermostat.
3. Remove quick coupler from inlet and discharge side
of coil.
4. Remove burner assembly from combustion
chamber.
5. Remove the 3-3/8" bolts from each side of coil and
tank assembly (these bolts are used to fasten tank
and handles to chassis).
6. Disconnect 1/2" pipe nipples from inlet and discharge
side of coil.
7. Remove top tank wrap exposing insulation and coil
and fold back insulation.
8. Remove bolts that hold down coil to bottom wrap.
9. Remove coil.
10. Replace or repair any insulation found to be torn or
broken.
Coil Reinstallation
Reinstall new or cleaned coil by reversing Steps 9
through 1 above.
MAINTENANCE & SERVICE
Summary of Contents for Landa HOT 2-1100
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