Lennox Hearth 1000 - Manual (Page 10)

10
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
14.0 CHECKING THE BURNER
There are no imitation fuel bed components, such as logs or
rocks, to install. The appliance features a ribbon burner which is
designed to produce a continuous band of flame over its length.
The burner should be visually inspected to ensure it is free from
any foreign matter. If it is necessary to clean or dust off the
burner then the glass door should be removed by removal of
the four retaining screws. Re-fit the glass door after cleaning or
inspection, ensuring a good seal.
15.0 CONNECTING A GAS LINE
A qualified gas appliance installer must connect the gas room
heater to the gas supply. Consult all local codes.
The installer must provide an ANSI approved manual shut off
valve, flex connector and 3/8" NPT fitting.
Route gas line using techniques and materials prescribed by
local and/or national codes. Only use pipe of 1/2" or greater size
to allow full gas volume to the gas fireplace. Undue pressure
loss will occur if the pipe is too small.
An external regulator must be used on all propane (L.P.G.)
heaters, in addition to the regulator fitted to the heater, to reduce
the supply tank pressure to 13" w.c. (maximum).
Regulator
Manual
Shut-Off
Valve
Union
Sediment
Trap
Fireplace or
Firebox Wall
Wall
Shut-Off
Key
Fireplace or
Firebox Wall
Down
3"
Figure 6
WARNING
Connecting directly to a unregulated propane (L.P.G.)
tank may cause an explosion.
An ANSI approved manual shut-off valve and union must be
installed upstream of the heater within the fireplace cavity
when rigid pipe is used. Ensure that a sediment trap is installed
upstream of the heater (Figure 4) within the structure’s piping
system to prevent moisture and contaminants from passing
through the pipe to the heater controls and burner. Failure to do
so could prevent the heater from operating reliably.
The heater gas inlet connection is 3/8” NPT at the regulator,
located below the burner, in the right hand side of the heater.
When tightening up the joint to the regulator hold the regulator
securely with a wrench to prevent the regulator from moving.
IMPORTANT
Hold heater regulator with a wrench to prevent move-
ment when connecting to inlet piping.