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6

Operating Instructions and Owner’s Manual

valve knob. If pilot does not remain lighted, repeat
the lighting operation allowing a longer period of
time before releasing the gas valve knob.

NOTE: In cases where long runs of gas supply lines
have been installed ahead of the appliance, it may be
necessary to bleed trapped air out of the supply lines
before lighting the pilot. New installations generally
require bleed of supply lines. Wait a minimum of five
minutes after bleeding the supply lines before
attempting to light the heater.

Adjust pilot if necessary as noted under “Pilot Burner
Adjustment.”

8.

Turn the gas valve knob counter-clockwise to the
“ON” position (see Fig. 1). The burner will light. 

DO

NOT operate the heater in any other than the full
“ON” position.

9.

IMPORTANT: DO NOT attempt to adjust the main
burner input using the main gas supply valve,

 for

this may cause the pilot and thermocouple to shut
down the burner (Fig. 2).

Shut-down instructions:

To turn the heater OFF,

For short periods of time, turn the main burner off by
rotating the gas valve knob clockwise to the “PILOT”
position.

For extended periods of non use, turn the appliance
completely off by rotating the gas valve knob clockwise
to the “PILOT” position, depress the knob slightly, then
rotate the knob fully clockwise to the “OFF” position.
(Note: For Model 125-R, also turn off the gas
supply cylinder.)

Pilot burner adjustment:

1.

Remove the pilot adjustment cap. The pilot adjustment
cap is a slotted screw located in front of  the “Pilot”
designation stamped on top of valve body just below
the gas valve knob.

2.

Adjust the pilot key to provide properly sized flame.
Rotate the key “clockwise” to decrease or “counter-
clockwise” to increase flame.

3.

Replace the pilot adjustment cap.

MAINTENANCE INSTRUCTIONS

This heater (including hose and regulator assembly if applicable)
must be inspected before each use. If the hose for the
Model 125-R shows evidence of excessive abrasion or
wear, or if the hose is cut, it must be replaced prior to the

heater being put into operation. The replacement hose
assembly shall be that specified by the manufacturer. See
the parts list.

The appliance area must be kept free and clear of
combustible materials, gasoline and other flammable
vapors and liquids at all times.

The flow of combustion and ventilation air must not be
obstructed.

Cleaning the heater:

Periodically, the heater must be cleaned of all dirt and dust
particles.

DANGER

DO NOT ATTEMPT TO CLEAN THE HEATER
WHILE IT IS OPERATING OR WHILE IT IS STILL
HOT.

Turn the heater off and wait until it has completely cooled (at
least 20minutes) before cleaning.

Clean the outside of the heater using a damp cloth. DO NOT
clean the heater by spraying water on it. Wipe the outside of the
heater off with a dry cloth after cleaning.

Clean the inside of the heater using compressed air. Blow air
back and forth along all inside surfaces until all dust has been
dislodged.

Clean the orifice of each burner with a #69 drill bit (for LP-Gas).
Clean the orifice manually (by hand) – DO NOT use power drill.

Clean the thermocouple lead.

DO NOT operate this heater if any part has been under
water. 

Call a qualified service person to inspect the

appliance and to replace any part of the control system or
gas control valve which has been under water.

This heater must be inspected at least annually by a qualified
service person.

WARNING

Do not exceed ½ PSI gas pressure to
appliance gas control valve.

Summary of Contents for 125-R

Page 1: ...ONSPROVIDEDWITHTHISHEATER CANRESULTINDEATH SERIOUSBODILYINJURYANDPROPERTYLOSSORDAMAGEFROM HAZARDSOFFIRE EXPLOSION BURN ASPHYXIATION CARBONMONOXIDEPOISONING AND OR ELECTRICALSHOCK ONLYPERSONSWHOCANUNDERSTANDANDFOLLOWTHEINSTRUCTIONSSHOULDUSEOR SERVICETHISHEATER IFYOUNEEDASSISTANCEORHEATERINFORMATIONSUCHASINSTRUCTIONMANUALS LABELS ETC CONTACTTHEMANUFACTURER WARNING FIRE BURN INHALATIONANDEXPLOSIONHAZ...

Page 2: ...e this heater in a space where gasoline or other liquids having flammable vapors are stored or used WARNING DONOTEXCEED psi 14 w c GAS PRESSURETOTHEGASCONTROLVALVE SPECIFICATIONS MODEL NO 125 R 125RN GAS TYPE LP Gas Natual Gas MAX INLET PRESSURE 14 IN W C 14 IN W C MIN INLET PRESSURE 13 5 IN W C 7 IN W C MANIFOLD PRESSURE 12 5 IN W C 6 IN W C VENTILATION WARNING THISAPPLIANCEISUNVENTEDANDMUSTBE US...

Page 3: ...ping water Use of this heater in a draft windy area decreases its efficiency If possible operate the unit in a draft free area PIPING For Model 125 R for use with LP Gas This model may be connected to a self contained LP Gas supply system using the hose and regulator assembly supplied with the appliance OR it may be connected to a permanentlyinstalledLP Gassupplysystem If connected to a self conta...

Page 4: ...t your sensitivity to that particular odor Odors present in animal confinement buildings can mask fuel gas odor The odorant in propane LP gas and natural gas is colorless and the intensity of its odor can fade under some circumstances If there is an underground leak the movement of gas through the soil can filter the odorant Propane LP gas odor may differ in intensity at different levels Since Pro...

Page 5: ...ntial for physical damage to the appliance is reduced to a minimum The owner operator of this appliance must ensure that precautions are taken to protect the appliance from physical damage LIGHTINGANDSHUTDOWN Lighting the Heater 1 Before attempting the light the heater smell all around the heater area for gas Be sure to smell next to the floor because LP Gas is heavier than air and will settle on ...

Page 6: ... provide properly sized flame Rotate the key clockwise to decrease or counter clockwise to increase flame 3 Replace the pilot adjustment cap MAINTENANCEINSTRUCTIONS This heater including hose and regulator assembly if applicable must be inspected before each use If the hose for the Model 125 R shows evidence of excessive abrasion or wear or if the hose is cut it must be replaced prior to the heate...

Page 7: ...TION REF ITEM DESCRIPTION 1 00332 Manual Control Valve 2 04466 Filter Diffuser 3 05363 Orifice Pilot 125 R 4 09352 Thermocouple 5 11357 Pilot Burner 6 11695 Regulator 125 R 7 11666 Regulator 125 RN 8 05374 Orifice Pilot 125 RN 9 CR805 Ignitor 10 CR835 Piezo 11 CR820 Axle 12 CR815 Axle Brackets 13 CR810 Wheel Figure 2 Figure 1 ...

Page 8: ...ions and Owner s Manual GAS FIREDINFRA REDPORTABLECONSTRUCTIONHEATER MODELS 125 RN 125 R 4 3 2 1 5 6 7 8 9 10 11 12 13 Combustion Chamber Mounting Bracket PilotSupplyTube PressureTestPort PropaneHose TopPlate FrameAssembly ...

Page 9: ...manufactured and sold will be free from defects in material and workmanship Parts assemblies controls etc furnished by Scheu Products Co will carry a one 1 year warranty on the applicable warranties of the suppliers The sole responsibility of Scheu Products Co under this warranty shall be to replace or repair any part for which a written claim is made to Scheu Products Co within the time limit of ...

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