Lennox Hearth ELITE EDVI25 - Manual (Page 11)

11
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Make gas line connections. All codes require a
shut-off valve mounted in the supply line. Figure
18 illustrates two methods for connecting the
gas supply. The fl ex-line method is acceptable
in the U.S., however, Canadian requirements
vary depending on locality. Installation must
be in compliance with local codes.
Step 9. CONNECTING GAS LINE
Gas
Stub
¹ ₂" x ³ ₈" Flare
Shut-Off Valve
³ ₈" Flex Tubing
³ ₈" NPT x
Flare Fitting
³ ₈
³ ₈" 5NION
³ ₈
³ ₈
¹ ₂ x ³ ₈ "
Reducer
Gas
Valve
Gas Flex Line Connector
3EDIMENT

Figure 18 - GAS CONNECTION
When fi rst lighting the appliance, it will take
a few minutes for the line to purge air from
the appliance. Once purging is complete, the
pilot and burner will light and operate as indi-
cated in the instruction manual. Subsequent
lightings of the appliance will not require such
purging. Inspect the pilot fl ame (remove logs,
if necessary, handling carefully).
Damper
Gear Clamp
Liner
Connector
Plate
Combustion
Air (inlet) Exhaust (outlet)
Figure 16
Figure 17
Screw
Notes:
• Final gas connection should be made after
unit is in place to avoid damage to line when
pushing the unit into position.
• Mill-pac, high temperature silicone and/or
screws may also be used to secure the liners
to the collars (gear clamps must also be
used).
These appliances are equipped with a gas
fl ex line for use (where permitted) in con-
necting the unit to the gas line. A gas fl ex
line is provided to aid in attaching the appli-
ance to the gas supply. The gas fl ex line
can only be used where local codes permit.
See Figure 18 for fl ex line description. The
fl ex line is rated for both natural and pro-
pane gas. A manual shut off valve is also
provided with the fl ex line. The gas control
valve is located in the lower control compart-
ment. The millivolt control valve has a 3/8"
(10 mm) NPT thread inlet port fi tting.
Purging Air from Supply Line
a. Turn gas supply line valve off.
b. Loosen setscrew at inlet pressure tap on
control valve (see Figure 36).
c. Turn gas supply line valve on.
d. When gas fl ows, turn supply valve off.
e. Close the inlet pressure tap.
Figure 19
Step 11. INSTALLING LOGS, VERMICU-
LITE AND EMBERS
The packaged log set, vermiculite and embers
are located within the fi rebox of the insert.
Note: The EDVI25/EDVI30 log set is shown
in fi gures 20-28 and the EDVI35 log set is
shown in fi gures 29-34.
Installation Instructions:
Purging Air from Appliance
Purge air from appliance by holding gas
control valve down in the pilot position
until pilot will light (see Figure 19). DO NOT
LIGHT A MATCH IF YOU SMELL GAS. Light
a match then allow gas fl ow to pilot. If the
Match “blows”, there is air in the line (purge
line). If the fl ame is straight and tall, there is
no gas pressure.
Liner
Connector
Plate
Note: If an optional Brick Liner Kit was
purchased, intall it now, per instructions
provided in kit.
Flex Liner Installation (see Figure 14 for
Masonry Fireplace Installations and Figure
15 for Factory Built Fireplaces):
Note: Refer to Vent Manufacturer Instal-
lation Instructions.
1) Cut the fl ex liners as required (mark both
ends of one of the fl exible liners as INLET).
2) Connect the liner marked INLET to the inlet
side of the termination adaptor. Connect the
other liner to the exhaust side. Secure liner
to INLET collar with hose clamp.
3) Install fl ashing.
4) Insert both liners into chimney, passing
through the damper opening.
5) Install termination cap.
6) Remove the liner connector plate from the
insert top (by removing the screw shown in
Figure 17, then sliding plate backward until it
clears the retaining breackets). Liners should be
streched just enough to prevent the possibility
of sagging or coiling in the fl ue. Cut off excess
liner (see collar locations on pages 5 & 6).
7) Connect the liner marked INLET to the inlet
collar on the liner connector plate (marked
with an "I"). Connect the remaining liner to
the exhaust collar (marked with an "E") on
the liner connector plate.
Note: Both con-
nections should be secured to collars using
gear clamps.
8) Slide the liner connector plate all the way
forward and secure into place with a screw
(provided) as shown in Figure 16 & 17.
WARNING: If logs are not installed accord-
ing to the directions shown here, fl ame
impingement and improper combustion
could occur and result in soot and/or exces-
sive production of carbon monoxide (CO),
a colorless, odorless, toxic gas.
AIR PURGING PROCEDURES MUST BE
PERFORMED BY A QUALIFIED TECHNICIAN
ONLY.
Step 10. PURGING AIR