Coil Removal - Landa MHP4-3000 Operator's Manual

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.
landa Sure fire Oil burner
burner air adjustment: The oil burner on this
machine is preset for operation at altitudes below 1000
feet. If operated at higher altitudes, it may be neces-
sary to adjust the air band for a #1 or #2 smoke spot
on the Bacharach scale.
To adjust, start machine and turn burner ON. Loosen
two locking screws found on the air band and close air
band until black smoke appears from burner exhaust
vent. Note air band position. Next, slowly open the air
band until white smoke just starts to appear. Turn air
band halfway back to the previously noted position.
Tighten locking screws.
burner air adjustment
Reference
Air Band
Air Band Locking Screws
CaUTION: If white smoke appears from burner
exhaust vent during start-up or operation,
discontinue use and readjust air bands.
NOTe: If a flue is installed, have a professional
serviceman adjust your burner for a #1 or #2 smoke
spot on the Bacharach scale.
PReVeNTaTIVe MaINTeNaNCe
Numbers
LANDA MHP • 8.913-925.0 • Rev. 8/13

Coil Removal

Removal of coil because of freeze breakage, or to clean
soot from it can be done quickly and easily.
Step 1 Disconnect hose from pump to inlet side
of the coil.
Step 2 Disconnect electrical connection
to the thermostat.
Step 3 Remove quick coupler from discharge
side of coil.
Step 4 R e m ove bu r n e r a s s e m bl y f r o m
combustion chamber.
Step 5 Remove the 3-3/8" bolts from each side
of coil and tank assembly (these bolts
are used to fasten tank to chassis).
Step 6 Disconnect 1/2" pipe nipples from inlet
and discharge side of coil.
Step 7 Remove top tank wrap exposing
insulation and coil and fold back
insulation.
Step 8 Remove bolts that hold down coil to
bottom wrap.
Step 9 Remove coil.
Replace or repair any insulation found to be torn
or broken.
Coil Reinstallation
Reinstall new or cleaned coil by reversing
the steps above.
final Note —
The DC motors used on 12V DC burners can draw as
much as 20 amps! For the burner to run properly, the
battery and engine charging system must be kept in
good condition, and the engine must run fast enough
to adequately charge the battery. Do not throttle down
the engines for any length of time.
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