FMI GWRN18TC Gas Heater User Manual


 
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125311-01A 15
10. To shut off burners only and leave pilot
lit, turn control knob clockwise to
the PILOT position.
WARNING: Always operate
manual control heaters at the
locked positions. Operation
between these positions may
create a possible health hazard
if used in a poorly ventilated
room. Read owner’s manual for
complete instructions.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
Figure 21 - Pilot
OPERATION
Continued
Thermocouple
Ignitor Electrode
Pilot Burner
LOW
OFF
Control 16,000 & 26,000 &
Knob 18,000 Btu/Hr
30,000 Btu/Hr
LOW
HIHI
OFF
MEDMED
Control 16,000 & 26,000 &
Knob 18,000 Btu/Hr 30,000 Btu/Hr
OFFOFF
ONON
THERMOSTAT MODELS
Turn thermostat control knob counterclock-
wise to the desired heating level. The main
burner should light. Set control knob to any
heat level between 1 and 5 (see Figure 23).
Figure 22 - Burner Patterns for Manual
Control Models
Figure 23 - Burner Patterns
TO TURN OFF GAS
TO APPLIANCE
1. Turn control knob clockwise to the
OFF position.
2. Turn off all electric power to the appliance
if service is to be performed.
3. Close equipment shutoff valve (see Figure
16, page 13).
TO SELECT
HEATING LEVEL
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
MANUAL CONTROL MODELS
WARNING: When running
heater, set control knob at LOW,
MED or HI locked positions.
Never set control knob between
locked positions. Poor combus-
tion and higher levels of carbon
monoxide may result.
Slightly press in control knob and turn coun-
terclockwise to the LOW, MED or HI positions
(see Figure 22).
IMPORTANT: Release downward pressure
while turning control knob. Control knob will
lock at the desired position.