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ADJUSTING THE BURNER- Continued
If difficulty in adjusting the burner is experienced, it may be the result of incorrect gas supply pressure or manifold pressure.
Pressure can only be checked and adjusted by a trained selaTicetechnician using instrmnents desiNled for that purpose.
WARNING: Do not attempt to change pressure settings without proper training and instruments.
To do so may cause your floor furnace to malfunction resulting in property damage, bodily injury, or
death.
The t\_llowing information is provided t\_ruse by a trained selaTicetechnician with measuring instruments.
Minflnum Inlet Pressure,Natural Gas.............................................................
Minhnum Inlet Pressure, Liquefied Petroleum (L.P) Gas ......................................
4.5 Inches Water Column
11.0 Inches Water Column
Maxhnum Inlet Pressurefor Natural Gas......................................................... 7.0 Inches Water Column
Maxhnum Inlet Pressure, Liquefied Petroleum (L.P) Gas ..................................... 14.0 Inches Water Column
(If the inlet pressure is found to exceed 14.0 inches water column, check the performance of the control valve thoroughly as
damage may have occurred. If manifold pressure cannot be adjusted, replace the control valve).
Manllbld Pressure,NaturalGas ....................................................................
Manifold Pressure, Liquefied Petroleuln (L.P) Gas ............................................
3.5 Inches Water Column
10.0 Inches Water Column
OPTIONAL OPERATION
Your floor furnace has been designed to meet all safety requirements of the American National Standards Institute and
government re_lations by offering two modes of operation.
OPTION 1. Place the furnace key on the damper control
rod (See Figure 21) and turn counterclockwise
until the warning flag is concealed and the damper is
open. Your floor furnace wilt now cycle on and off
maintaining a moderate grill temperature and an even
room temperature. Your floor furnace wilt function best
on this setting during mild weather.
OPTION 1
In mild weather,
operate furnace
with damper open.
Furnace will cycle
on and offmain-
taining a moderate
grill temperature
and an even rooln
temperature.
FIGURE 21
WARNING
FLOOR FURNACE GRILLS BECOME
HOT WHEN FURNACE IS IN
OPERATION. CONTACT OF BARE
SKIN WITH GRILL MAY RESULT IN
SEVERE BURNS. KEEP CHILDREN
OFF, PROVIDE FENCE OR REGISTER
GUARD FOR THEIR PROTECTION.
OPTION 2. Turn the furnace key cloc_vise _ until the
warning flag reading "WARNING - GRILL IS HOT Keep off
can cause burns" is visible and the damper is closed. The limit
control will now cease to function and the floor furnace will now
put out the maximum amount of heat until the rooln temperature
reaches the thermostat setting. Use this option only in extremely
cold weather. If furnace continues to cycle on limits, assure that
damper door is 100% closed by adjusting damper door pin if
necessary.
OPTION 2
In extremely cold
weather, close damper
(which exposes warning
plate). Furnace wilt then
put outmaximum
amount of heat until
room temperature Closed
reaches setting on walt
thermostat.
FIGURE 22
LIMIT SWITCH
TEMPERATURE SETTINGS
90{N,P}30A.......................... 140o
90{N,P}50A.......................... 1600
90{N,P}65A.......................... 180o
90{N,P}75A.......................... 170o
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