FMI GWRN18TC Gas Heater User Manual


 
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125311-01A18
We also recommend that you keep the burner
tube and pilot assembly clean and free of dust
and dirt. To clean these parts we recommend
using compressed air no greater than 30 PSI.
Your local computer store, hardware store or
home center may carry compressed air in a
can. If using compressed air in a can, please
follow the directions on the can. If you don’t
follow directions on the can, you could dam-
age the pilot assembly.
1. Shut off unit, including pilot. Allow unit to
cool for at least thirty minutes.
2. Inspect burner, pilot and primary air inlet
holes on orice holder for dust and dirt
(see Figure 30).
3. Blow air through the ports/slots and holes
in the burner.
4. Never inset objects into the pilot tube.
5. Blow air into the primary air holes on the
orice holder.
Clean pilot assembly also. A yellow tip on the
pilot ame indicates dust and dirt in the pilot
Figure 30 - Pilot Inlet Air Hole
CLEANING AND MAINTENANCE
Continued
Pilot
Assembly
Pilot Air
Inlet Hole
CABINET
Air Passageways
Use pressurized air to clean.
Exterior
Use a soft cloth dampened with a mild soap
and water mixture. Wipe the cabinet to re-
move dust.
SPECIFICATIONS
GWRN18TC, VSHRN18T
Natural Gas Only
18,000 Btu/h
Pressure Regulator Setting: 6" W.C.
Inlet Gas Pressure* (in. of water):
Maximum - 10.5" W.C., Minimum - 7" W.C.
GWRN30TC, VSHRN30T
Natural Gas Only
30,000 Btu/h
Pressure Regulator Setting: 6" W.C.
Inlet Gas Pressure* (in. of water):
Maximum - 10.5" W.C., Minimum - 7" W.C.
GWRN18C, VSHRN18M
Natural Gas Only
6,600/12,000/18,000 Btu/h
Pressure Regulator Setting: 6" W.C.
Inlet Gas Pressure* (in. of water):
Maximum - 10.5" W.C., Minimum - 7" W.C.
GWRN30C, VSHRN30M
Natural Gas Only
6,600/18,000/30,000 Btu/h
Pressure Regulator Setting: 6" W.C.
Inlet Gas Pressure* (in. of water):
Maximum - 10.5" W.C., Minimum - 7" W.C
GWRP16TC, VSHRP16T
Propane/LP Gas Only
16,000 Btu/h
Pressure Regulator Setting: 8" W.C.
Inlet Gas Pressure* (in. of water):
Maximum - 14" W.C., Minimum - 11" W.C.
GWRP26TC, VSHRP26T
Propane/LP Gas Only
26,000 Btu/h
Pressure Regulator Setting: 8" W.C.
Inlet Gas Pressure* (in. of water):
Maximum - 14" W.C., Minimum - 11" W.C.
GWRP16C, VSHRP16M
Propane/LP Gas Only
6,000/11,000/16,000/ Btu/h
Pressure Regulator Setting: 8" W.C.
Inlet Gas Pressure* (in. of water):
Maximum - 14" W.C., Minimum - 11" W.C.
GWRP26C, VSHRP26M
Propane/LP Gas Only
6,000/16,000/26,000 Btu/h
Pressure Regulator Setting: 8" W.C.
Inlet Gas Pressure* (in. of water):
Maximum - 14" W.C., Minimum - 11" W.C.
* For purposes of input adjustment.
assembly. There is a small pilot air inlet hole
about 2" from where the pilot ame comes out
of the pilot assembly (see Figure 30). With the
unit off, lightly blow air through the air inlet
hole. You may blow through a drinking straw
if compressed air is not available.