R-1923
Page 5
3. The appliance must be isolated from the gas supply piping system by
closing its individual manual shutoff valve during any pressure
testing of the gas supply piping system at test pressures equal to or
less than 1/2 psig (3.5kPa).
Attention! If one of the above procedures results in pressures in excess
of 1/2 psig (14" w.c.) (3.5kPa) 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
that has a sealed adjustment. Natural gas models will have a manifold
pressure 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. (1.245kPa) for
the purpose of input adjustment to a maximum of 10.5" w.c. (2.61kPa)
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.
Liner and Insulated Liner
When you install a vented room heater into a masonry chimney you must
follow these steps.
1. The chimney must be lined and sized properly. Most masonry
chimneys are over sized and absorb too much heat to be considered
a proper vent. If you have any doubts line the chimney with the right
size liner. If it's unlined you must line it.
2. Use an insulated liner when the chimney is on the outside, three sides
exposed to the weather, and there is no clay liner in the chimney. The
insulation will help keep the flue gases warmer.
Insulated Vent Enclosure
Vented room heaters installed with the vent going directly to the outside
and above the eaves can cause poor venting. The cold pipe will have a
delay in proper venting and cause the room heater to shut "off" by the vent
safety switch. To prevent delayed venting as well as condensation of flue
products an insulated enclosure is recommended.
Use type B 5" (127mm) diameter vent pipe and maintain at least a one inch
(25mm) clearance to combustibles.
Use metal thimble to protect vent pipe as it passes through combustibles.
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. Canadian High Altitudes for locations having an elevation
above mean sea level between 2,000 feet (610m) and 4,500 feet (1370m),
the manifold pressure is to be decreased from 4.0" w.c. (.996kPa) to 3.2"
w.c. (.797kPa) for Natural Gas and from 10.0" w.c. (2.49kPa) to 8.0"
w.c. (1.99kPa) for Propane Gas.
Piezo Pilot Ignitor Instructions
Depressing the red button completely causes a spark to occur at the pilot.
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.
Vent Safety Shutoff System
This heater must be properly connected to a venting system. This heater
is equipped with a vent safety shutoff system.
Warning:
Operation of this heater, when not connected to a properly
installed and maintained venting system or tampering with the
vent safety shutoff system, can result in carbon monoxide (CO)
poisoning and possible death.
This appliance needs fresh air for safe operation and must be installed
so there are provisions for adequate combustion and ventilation air.
This room heater is equipped with a vent safety switch. The vent safety
switch will cause gas flow to the pilot to "shut off" due to improper
venting or a blocked flue.
If the vent safety switch continues to "shut off" the gas flow to the pilot
a qualified service person must be contacted to inspect for improper
venting, blockage in the vent pipe or the vent safety switch for being
defective.
DRAFT DIVERTER CAN BE EITHER A VERTICAL VENT OR HORIZONTAL VENT
Reversible Vertical or Horizontal Draft Diverter
This room heater has a reversible draft diverter. The draft diverter is
installed in the vertical position at the factory. Please use the following
steps to change the draft diverter from the vertical position to the
horizontal position.
1. Remove L280 vent safety switch from the draft diverter.
2. Inside your yellow instruction envelope will be a 1 1/2" x 2 1/4"
(38mm x 51mm) vent safety switch hole cover plate and two (2)
1/2" screws for attachment of vent safety switch hole cover plate to
the draft diverter. Attach vent safety switch hole cover plate over
hole on the draft diverter from which the L280 vent safety switch was
removed.
3. Remove two (2) screws at bottom of draft diverter and lift upward to
remove draft diverter from the draft diverter plate. Rotate draft
diverter into the horizontal position and slide back into the draft
diverter plate. Attach two (2) screws into bottom of the draft
diverter.
4. Remove vent safety switch hole knockout and two (2) knockouts for
screws on opposite side of draft diverter.
5. Attach L280 vent safety switch to the draft diverter.
6. Repositioning of the draft diverter is completed.
3' (.9m)
MORE THAN 10'
(3m)
10' (3m)
2' (.6m)
HEIGHT ABOVE ANY ROOF SURFACE
WITHIN 10' (3m) HORIZONTALLY
