Publicité
Les langues disponibles
Les langues disponibles
ATTENTION! If one of the above procedures results in pressures in
excess of 1/2 psig (14" w.c.) (3.5 kPa) on the appliance gas valve,
it will result in a hazardous condition.
CHECKING MANIFOLD PRESSURE
Both Propane and Natural Gas valves have a built-in pressure
regulator in the gas valve. Natural Gas models will have a manifold
pressure of approximately 4.0" w.c. (.996kPa) at the valve outlet
with the inlet pressure to the valve from a minimum of 5.0" w.c.
(1.24kPa) for the purpose of input adjustment to a maximum of
10.5" w.c. (2.615kPa). Propane Gas models will have a manifold
pressure approximately 10.0" w.c. (2.49kPa) at the valve outlet
with the inlet pressure to the valve from a minimum of 11.0" w.c.
(2.739kPa) for the purpose of input adjustment to a maximum of
13.0" w.c. (3.237kPa).
A 1/8" (3mm) N.P.T. plugged tapping, accessible for test gauge
connection, is located on the outlet side of the gas control.
The built-in regulator comes on at approximately 1/4th pressure
and full on in 10 seconds.
HIGH ALTITUDES
For altitudes/elevations above 2,000 feet (610m), input ratings should
be reduced at the rate of 4 percent for each 1,000 feet (305m) above
sea level. For Canadian high altitude applications, this appliance is
suitable for installation at elevations between 0 feet (0m) and 4,500
feet (1,372m) without change.
PIEZO PILOT IGNITOR INSTRUCTIONS
Depressing the red button completely causes a spark to occur at the
pilot. This is a substitute for a match which requires opening the pilot
hole cover. To light the pilot, it is important that the electrode be 1/8"
(3mm) from the thermocouple. The spark must occur at the point
the burner flame hits the thermocouple. The end of the electrode
will be red hot with the pilot on.On a new installation with air in the
gas line, it is suggested that a match be used. The match will light
the pilot faster than the piezo under this condition.
PROPER PILOT FLAME
The correct pilot flame (Figure 10) will be blue, extending past
the thermocouple. The flame will surround the thermocouple just
below the tip.
Natural Gas pilots require adjusting when the inlet gas pressure
is above 5" w.c. (1.245kPa). Remove the pilot cover screw on the
control valve (Figure 9), and turn the adjustment screw clockwise to
reduce flame. Replace pilot cover screw to eliminate gas leakage.
Propane Gas will not require adjustment.
After use, cleaning may be required for the proper flame.
PROPER MAIN BURNER FLAME
The correct flame will be a short, blue inner flame with a much
larger, light blue, outer flame. The burner does not have a primary
air adjustment. The flame will be correct if the factory-set pressure
and orifice opening are used. After the furnace has been operating,
the burner ports may be blocked by foreign matter carried in by
combustion air. Therefore, cleaning of the burner may be needed
for proper flame.
37134-6-0520
Figure 9
To clean burner port disconnect the gas supply to the valve, and
remove the screws fastening the burner door. After removing the
burner door from the burner box, remove each main burner. Pilot
mounting bracket will need to be unscrewed and moved out of
the way to remove all burners. Burners can be blown out using
compressed air or by blowing through them. Be sure there is no lint
or foreign debris blocking the burner ports. Reassemble using the
same screws earlier removed and locate pilot in the same position
as before and noted above.
THERMOCOUPLE
BURNER
SPARK
PILOT
ELECTRODE
STANDING PILOT
STANDING PILOT
3/8" TO 1/2"
PILOT FLAME
PILOT
HOT SURFACE
IGNITOR
IP-MODEL PILOT
IP-MODEL PILOT
CLEANING COMBUSTION (EXCHANGER) ASSEMBLY
A QUALIFIED SERVICE PERSON should remove the combustion
(exchanger) assembly and flue baffles. Apply air pressure to the
inside of the combustion (exchanger) assembly and flue baffles in
order to clear all passageways.
OILING THE MOTOR
The fan motor should be cleaned and oiled once each heating
season. Oil holes are located on the top at each end of the motor.
Use a few drops of #10 motor oil. To clean the motor, blow air
through its ventilation openings with a vacuum cleaner or low
pressure air source.
WIRING
The appliance, when installed, must be electrically grounded in
accordance with local codes or, in the absence of local codes, with
the National Electrical Code, ANSI/NFPA 70 or Canadian Electrical
Code, CSA C22.1, if an external electrical source is utilized. This
appliance is equipped with a three-prong [grounding] plug for
THERMOCOUPLE
SPARK
ELECTRODE
PILOT LOCATION END VIEW
PILOT LOCATION END VIEW
STANDING PILOT SHOWN
STANDING PILOT SHOWN
GROUND
ELECTRODE
BURNER
FLAME
ROD
Figure 10
Figure 11
PILOT SHIELD
Page 9
Publicité
