Mr. Heater MH50KR Guide D'utilisation page 5

500 HOUR SCHEDULE
1.­ AIR­INTAKE­FILTER.­Remove­and­wash­the­filter­element­
with­a­mild­detergent,­dry­thoroughly­and­replace.­Do­not­
oil­the­filter­element.­If­your­heater­is­used­where­there­
is­considerable­dust­or­dirt,­clean­as­often­as­necessary­
(approximately­every­50­hrs.).
2.­ REMOVE­DUST.­Clean­heater­twice­a­season­(more­often­
under­dusty­conditions).­Remove­accumulated­dust­from­the­
transformer,­burner,­motor­and­fan­blades­with­compressed­
air.­Wipe­area­clean­with­a­clean­dry­cloth.­Inspect­area­to­
insure­all­foreign­materials­are­removed,­especially­around­
the­burner­and­combustion­area.
3.­ CAD­CELL.­Clean­the­glass­portion­of­the­cad­cell­with­a­soft­
dry­cloth.
4.­ NOZZLE.­Accumulation­of­dirt­from­fuel­and­carbon­from­the­
compressor­vanes­will­eventually­fill­up­the­passages­in­the­
nozzle,­resulting­in­reduction­of­fuel­and­air­flow.­Pressure­
will­gradually­increase­giving­improper­fuel-air­mixture­and­
excess­odor­and­smoke.­If­this­occurs,­replace­the­fuel­
nozzle.
5.­ FUEL­TANK.­Clean­twice­a­season­(during­frequently­used­
periods,­clean­twice­a­month).­Drain­and­flush­the­fuel­tank­
with­clean­fuel­oil.
ANNUAL SCHEDULE
1.­ AIR­OUTPUT­FILTER.­Remove­the­air­output­filter­and­tap­
the­contaminated­side­gently­on­a­solid­object­to­remove­
contaminates.­Compressed­air­or­liquids­should­not­be­used­
to­clean­this­filter.­Reinstall­cleaned­filter­in­filter­body­in­the­
same­position­as­it­was­when­removed.­If­the­filter­appears­
extremely­dirty,­replace­it­with­a­new­filter­of­the­same­type.­
When­replacing­the­filter­cover,­be­sure­the­gasket­is­firmly­
in­place­and­the­screws­in­the­filter­cover­are­tight­to­prevent­
air­leaks.
2.­ FUEL­FILTER.­Remove­the­fuel­filter­from­fuel­line­and­direct­
compressed­air­through­the­filter­in­the­opposite­direction­
of­fuel­flow.­Safety­glasses­should­be­worn­when­using­
compressed­air.
3.­ AIR­AND­FUEL­LINES.­If­the­air­or­fuel­lines­are­removed­
during­cleaning,­be­sure­all­connections­are­tight­before­
operating­unit.
STORAGE
Store­the­heater­in­a­dry­location­free­from­fumes­or­dust.
At­the­end­of­each­heating­season,­clean­the­heater­as­described­
in­the­MAINTENANCE­section.­Drain­and­flush­the­fuel­tank­with­
clean­fuel.­The­manufacturer­recommends­completely­filling­the­
tank­with­fuel­for­extended­storage­to­minimize­condensation­
inside­the­tank.
SERVICING
A­hazardous­condition­may­result­if­a­heater­is­used­that­has­been­
modified­or­is­not­functioning­properly.­
When­the­heater­is­working­normally:
*­ The­flame­is­contained­within­the­heater.
*­­ The­flame­is­essentially­yellow.
*­ There­is­no­strong­disagreeable­odor,­eye­burning­or­other­
physical­discomfort.
*­ There­is­no­smoke­or­soot­internal­or­external­to­the­heater.
*­ There­are­no­unplanned­or­unexplained­shut­downs­of­the­
heater.
Mr. Heater, Inc.| Kerosene Forced Air Heater
e-5
Operating Instructions and Owner's Manual