Enviro EG28-120 - Manual (Page 7)

Figure 4: Gas Valve.
Figure 3: Pilot Burning.
tips, are not getting enough air. Open the venturi until the flames clean up. If the venturi is opened, or
closed all the way, and the correct flames cannot be attained, turn off the gas and contact the dealer.
Figure 5: Venturi Adjustment.
Operating Instructions
7
A
DJUSTING
T
HE
V
ENTURIES
:
• Remove the ash shelf by undoing the screw at each end, pull shelf towards you.
• Remove one screw from the cover plate located below the ash shelf. Loosen the other screw (do not
remove) swing the cover plate out of the way and tighten screw down to hold it in place.
• With along screwdriver rotate spring clips to open or close the shutter to the desired setting.
The venturies allows the amount of air coming into the fireplace
to be adjusted in order to accommodate different climates and
venting arrangements. Start the pilot and then the burner. Make
sure the pilot flame is burning normally and none of the burner
ports are plugged. Let the fireplace burn for roughly fifteen
minutes and then examine the flames, compare the flames to
Figure 46.
The ideal flame will be blue at the base and light orange above.
The flames should be of medium height. If the flames look like
this, no venturi adjustment is needed. If the flames are fairly short
and mostly blue, the fireplace is getting too much air. Therefore,
the venturies should be closed slightly until the correct flames are
achieved. Flames that are very orange, with tall, dark, stringy
Table 1: Venturi Setting
NG LP
Venturi Setting 1 /
16
” min. 1⁄4” min.
N
ORMAL
S
OUNDS
D
URING
O
PERATION
:
Table 2: Normal Sounds
Component Sound & Reason
EG28 Creaking when heating up or cooling down.
Burner Light pop or poof when turned off; this is more common with LP units.
Temperature Sensor Clinking when it senses to turn the blower on or off.
Pilot Flame Quiet whisper while the pilot flame in on.
Blower / Fan Air movement that increase and decreases with the speed of the blower. The
blower is pushing the heat from the fireplace into the room.
Gas Control Valve Dull click when turning on or off, this is the valve opening and closing.
Warning: Incorrect venturi adjustment may lead to improper
combustion, which is a safety hazard. Contact the dealer if
there is any concern about the venturi adjustment.