Empire Comfort Systems GWT-50-2 用户手册

Page 14 

12426-4-0104

GENERAL   All furnaces have been Þ re-tested to check for 
proper operation.  This includes main burner ß ame, pilot ß ame, 
and gas control operation.  If the furnace fails to function on initial 
installation, it is advisable to re-check the following: 

1.  Inlet gas pressure.
2.  Type of gas being used and that shown on the rating 

plate.

The Service Department at Empire Comfort Systems, Inc. may 
be contacted to assist in servicing furnace.
Servicing the Pilot and Main Burner, Pilot OriÞ ce, Thermopile 
and Main Burner OriÞ ce  
Disconnect the gas supply at the inlet to the control valve.   
Remove the burner assembly to which the above components 
are attached.
Pilot Does Not Light 
With air in the gas line, such as when the furnace is Þ rst installed 
or was "OFF" all summer, the pilot ß ame may be too lean to 
ignite on the Þ rst few trials.  Turn the gas control knob to PILOT 
position and depress the gas control knob.  Hold the gas control 
knob down to bleed the line;

1.  Use lighter rod to light pilot with a match.

1.  Check gas control knob for being in the "Pilot" position.
2.  Check pilot adjustment for being full open (counterclockwise 

to open).

3.  If gas is available in the supply tubing, the pilot oriÞ ce 

and/or pilot burner is probably restricted by a spider web.  
Clean pilot assembly and relight.

1.  Follow instructions and hold gas control knob down longer 

and harder.

2.  Determine if pilot ß ame extends past thermopile; if not, 

adjust pilot ß ame or clean pilot burner.

3.  Replace thermopile if millivolt reading is less than 300 

millivolts when wall thermostat or remote bulb is turned 
OFF.   Replace gas control if magnet dropout millivolt 
reading is over 100 millivolts.

1.  Check input by manifold pressure gauge or gas meter.
2.  Check millivolt output when furnace is in operation.  If 

millivolt output decreases during furnace operation gas 
control may be defective. 

1.  Check millivolt output of thermopile.
2.  Thermostat wires may be broken.
3.  Thermostat may be defective.