Hotsy 1200 Operator's Manual 8.914-366.0 - Ac - Hotsy 1260SS Operator's Manual

Maintenance
PROBLEM
Improper fuel or water in fuel
MACHINE
Improper air adjustment
SMOKES
Fuel pressure is low <140 psi for
WHILE
burner
BURNER UNIT
IS RUNNING
Burner nozzle is plugged or dirty
OR
UNIT SMOKES
Burner nozzle spray pattern is faulty
AT COLD-START
ONLY WHEN Heavy accumulation of soot on coils
and burner assembly
BURNER
IS OFF
Misaligned electrode setting
MACHINE
Obstruction in smoke stack
SMOKES
WHILE
Low engine RPM
BURNER UNIT
IS RUNNING
Fuel Pressure is too high for clean
OR
burn (fuel PSI above 140 and below
200) and smokes when burner is off
UNIT SMOKES
AT COLD-START
Hotsy 1200-series target fuel
ONLY WHEN
pressure 145-170 PSI post-pump
BURNER
(160-185 PSI at bleeder valve).
IS OFF
Target Air band set range 5.5-7.5
CONTINUED
20
POSSIBLE CAUSE

Hotsy 1200 Operator's Manual 8.914-366.0 - AC

SOLUTION
Drain tank and replace contaminated fuel
Readjust air bands on burner assembly
Adjust fuel pump pressure to specifications
Replace nozzle. Check parts breakdown
for nozzle size
Replace nozzle. Check parts breakdown
for nozzle size
Remove coils and burner assembly,
clean thoroughly Call local dealer
Realign electrodes to specifications
Check for insulation blockage or other
foreign objects
Increase RPM to correct specs. See serial plate
Reduce fuel pressure PSI/Increase air band set for
cleaner without max water heat loss