Enviro G39L, Owner'S Manual

Page: 9 / 54

9
Operating Instructions
Convection fan operation is optional, it will come on only when the fireplace is up
to temperature (approximately 15 minutes). The speed of the fan can be changed
by turning the fan control knob. The blower will continue to operate automatically
after the unit has been shut off (approximately 25 minutes).To turn the blower off,
turn the knob counter-clockwise until it “clicks” off (Figure 5).
It is advisable not to operate the blower below
1
/
3
speed as it puts a strain on the
windings of the blower which could also cause premature fan failure.
Figure 5. Fan Control
n
oRmaL
s
ounDs
D
uRinG
o
PeRation
:
Table 1: Normal Sounds
Component Normal Sound Description
Main Unit Creaking when heating up or cooling down
Burner Light pop or poof when turned on or off
Temperature Sensor Clinking when it senses to turn the blower on or off
Pilot Flame Quiet whisper while the pilot flame is on
Blower / Fan Air movement that increase and decreases with the speed of the blower
Gas Control Valve Dull click when turning on or off, this is the valve opening and closing
b
LoweR sPeeD
:
For Your Safety, Read Safety Precautions And
Lighting Instructions Before Operating
a
iR
s
hutteR
(V
entuRi
):
The air shutter plays a very important role in flame appearence and combustion quality. The shutter
adjusts how much air gets mixed with the gas before it ignites; adjustments can be made to accomodate
various climates and vent configurations.
Remove surround to access the air shutter. Find the lever underneath the firebox (see Figure 6). Moving
the lever right (closed) will make the flame appear more yellow and tall; moving the lever left (open) will
make the flames appear more blue and short.
Typically natural gas flames will require
the shutter to be more closed.
Typically LP flames will require the
shutter to be more open.
If you cannot attain a healthy flame by making
air shutter adjustments, you may have the
incorrect restrictor setting or venting problem.
If the flame is very flickery, fast moving, and
low then increase the restriction.
If the flame is very tall, lazy, and dirty then
decrease the restriction.
More details can be found in the venting section
of this manual.
Caution: Wear heat resistent gloves when
making adjustments to the air shutter.
Perform adjustments after 15 minutes.
Figure 6. Air Shutter Location
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_
A
DETAIL
A
SCALE 1 : 2
Air Shutter Lever