Operating Instructions; Servicing - Mr. Heater MH125FAV Operating Instructions And Owner's Manual

NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!

OPERATING INSTRUCTIONS

PREPARING FOR OPERATION
1.­ Check­the­heater­for­possible­shipping­damage.­If­any­is­
found,­immediately­notify­the­factory.
2.­ Follow­all­of­the­"Precautions".­
3.­ Connect­the­POL­fitting­of­hose­and­regulator­assembly­to­the­
propane­cylinder­by­rotating­the­POL­nut­counterclockwise­into­
the­propane­cylinder's­valve­outlet­and­securely­tighten­with­a­
wrench.
4.­ Connect­the­hose­to­the­heater­by­rotating­the­hose­fitting­
clockwise.
5.­ Securely­tighten­all­gas­connections.
6.­ Open­the­cylinder's­gas­valve­and­check­all­gas­connections­
with­a­soap­and­water­solution.­DO­NOT­USE­A­FLAME.
7.­ Connect­power­cord­to­well-grounded­115V,­125­­Hz,­1Ø­
source­of­power.
8.­ When­using­an­extension­cord,­make­certain­that­it­is­a­3-wire­
(grounded)­cord­of­proper­wire­size.
START
1.­ Before­heater­ignition,­always­allow­heater­fan­(blower)­to­run­
for­20­seconds­to­purge­fuel.
2.­ Slowly­open­the­main­valve­at­propane­cylinder.
3.­ Depress­the­fuel­valve­button­to­light­the­heater.
4.­ After­the­heater­lights,­keep­the­gas­valve­button­depressed­
for­15­seconds­then­release­and­the­heater­will­continue­to­
operate.
5.­ Adjust­burn­rate­by­setting­control­knob­to­desired­level.
6.­ Igniter­continues­to­fire­as­long­as­power­cord­is­plugged­in.
­ a)­Igniter­sparks­continually.
7.­ No­thermostat­usable­with­these­units.
STOP
1.­ Securely­close­valve­on­the­propane­cylinder.
2.­ Continue­to­operate­heater­until­all­fuel­in­the­hose­has­
burned.
3.­ Unplug­the­power­cord.
RESTART AFTER SAFETY SHUTDOWN
1.­ Securely­close­valve­at­propane­cylinder.­Unplug­heater.
2.­ Wait­5­minutes.
3.­ Restart­following­"Start"­procedure.
Mr. Heater, Inc.| Forced Air Propane Construction Heater
MAINTENANCE AND STORAGE
1.­ The­heater­should­be­inspected­before­each­use,­and­at­least­
annually­by­a­qualified­person.
2.­ Before­each­use,­check­the­soft­"O"­ring­seal­at­the­bullnose­
of­the­POL­fitting.­If­the­"O"­ring­is­cut,­scuffed,­or­otherwise­
damaged,­replace­it­with­part­number­73786.
3.­ Turn­off­the­gas­at­the­LP-gas­supply­cylinder(s)­when­the­
heater­is­not­in­use.
4.­ When­the­heater­is­to­be­stored­indoors,­the­connection­
between­the­LP-gas­supply­cylinder(s)­and­the­heater­must­
be­disconnected­and­the­cylinder(s)­removed­from­the­heater­
and­stored­out­of­doors­and­in­accordance­with­Chapter­5­of­
the­standard­for­Storage­and­Handling­of­Liquefied­Petroleum­
Gases­ANSI/NFPA­58­and­CSA­B149.1,­Natural­Gas­and­
Propane­Installation­Code.

SERVICING

A­hazardous­condition­may­result­if­a­heater­is­used­that­has­been­
modified­or­is­not­functioning­properly.­When­the­heater­is­working­
properly:
•­ The­flame­is­contained­within­the­heater.
•­ The­flame­is­essentially­blue­with­perhaps­some­yellow­tipping.
•­ There­is­no­strong­disagreeable­odor,­eye­burning­or­other­
physical­discomfort.
•­ There­is­no­smoke­or­soot­internal­or­external­to­the­heater.
•­ There­are­no­unplanned­or­unexplained­shut­downs­of­the­
heater.
The­parts­lists­and­wiring­diagram­show­the­heater­as­it­was­
constructed.­Do­not­use­a­heater­which­is­different­from­that­
shown.­In­this­regard,­use­only­the­hose,­regulator­and­cylinder­
connection­fitting­(called­a­POL­fitting)­supplied­with­the­heater.­
IMPORTANT­Match­the­color­stripe­on­the­hangtag­attached­to­
the­hose­assembly­with­the­color­on­the­label­located­near­the­
propane­inlet­fitting­on­the­heater.­Do­not­use­alternates.­For­this­
heater,­the­regulator­must­be­set­as­shown­in­"specifications".­
If­there­is­any­uncertainty­about­the­regulator­setting,­have­it­
checked.
A­heater­which­is­not­working­right­must­be­repaired,­but­only­by­a­
trained,­experienced­service­person.
In-warranty­products­will­be­repaired­with­no­charge­for­either­parts­
or­labor.­Please­include­a­brief­statement­indicating­date,­place­of­
purchase,­the­nature­of­the­problem­and­proof­of­purchase.
Out-of-warrranty­products­will­be­repaired­with­a­charge­for­parts­
and­labor.
HEATER ELEVATION ADJUSTMENT
This heater is equipped with an elevation adjustment panel
located at the exhaust end of the control box.
1. Do not adjust the heater combustion tube elevation while
heater is running or hot. Adjustments to elevation should
only be made after the heater has cooled to touch.
2. To adjust the heater combustion tube elevation, turn the
adjustment screw knob counterclockwise and lift the
combustion tube to desired position.
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Operating Instructions and Owner's Manual