_
Techrlloal
GAS UNITS
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_:_bic=lo.s
KITS AND ACCESSORIES
Litho U,S.A,
©1997 Lennox
industries
inc.
Datlas, Texas
503,770M
10/97
FURNACE TRANSITION
KIT
INSTALLATION
INSTRUCTIONS
FOR FURNACE
TRANSITION
KIT CAT# 16L23
(LB-89657A),
CAT# 16L24 (LB-89657B),
AND CAT# 16L25 (LB-89658A),USED
WHEN
CONVERTING
FROM G14 UNITS TO G26 UNITS
(UPFLOW)
Package 1 of 1 contains:
1 - Supply airtransition
1 - External Filter rack (used with kit CAT# 16L23 and
16L24)
1 -
Internal filter rack top piece (used with kit CAT#
16L25)
1 -
Internal
filter
rack bottom
piece (used with
kit
CAT# 16L25)
1 -
Filter rack door
1 -
Roll of adhesive-backed
foam tape (1/8" thick x
5/16" wide)
8-
Insulation
pins
8-
Insulation
washers
1 -
1/2" CPVC x 1/2"PVC bushing
2 - Wire ties (used with kit CAT# 16L25)
Check all components
for shipping
damage. Consult
last carrier immediately
if damage is found.
Table 1 shows furnace transition
kit usage. These kits
are used when
replacing
an existing
G14 upflow
furnace
with
a G26
upflow
furnace.
It allows
installation
of the G26 furnace without
modification
of the existing
supply
and side return air plenums.
Bottom
return
air applications
do not require
the
provided
filter rack,
G14 installations
with air conditionh_g - G 14 removal
may
require
raising
of coil,
or partially
or fully
removing
the coil. If coil needs to be removed,
line
sets may need to be cut, which in turn requires system
pump-down
or refrigerant
recovery
depending
on
type of service valves provided
on condensing
unit or
ambient
outdoor temperatures.
Refer to figure
1 for typical G14 installation.
A - G14 units without air conditioning
1 - Set the thermostat
to the lowest setting,
2 - Disconnect
electrical
power to G14 unit,
3-
Shut off gas to G14 unit.
4 - Disconnect
supply air plenum at unit top.
5 - Remove control access panel,
6 - Cut combustion
air intake pipe and exhaust pipe
in
location(s)
which
will
allow
convenient
reconnection
of
pipes
to
G26
unit,
and/or
removal
of
muffler(s)
(if
installed).
Remove
muffler(s)
(if
installed),
Support
intake
and
exhaust
pipes to prevent damage to pipe joints,
7 - Cut condensate
drain line in a location which will
allow convenient
reconnection
with G26 unit.
8 - Disconnect
gas line at unit.
9 -
Disconnect
power wiring
at unit.
10 -Disconnect
low voltage wiring
at unit.
11 -Remove
blower
access panel.
TABLE 1
G14
CABINET WIDTH
G26
CABINET WIDTH
KIT CAT# (LB#)
inches (mm)
inches (mm)
Q3-40
21-1/4 (540)
Q2/Q3-50
16-1/4 (413)
16L23 (LB-89657A)
Q3-60
21-1/4 (540)
Q3-50 or Q3-75
16-1/4 (413)
16L23 (LB-89657A)
Q4-60
21-1/4 (540)
Q4/5-75
21-1/4 (540)
16L25 (LB-89658A)
Q3-80
21-1/4 (540)
Q3-75
16-1/4 (413)
16L23 (LB-89657A)
Q4-80
21-1/4 (540)
Q4/5-75
21-1/4 (540)
16L25 (LB-89658A
Q5-80
26-1/4 (667)
Q4/5-75
21-1/4 (540)
16L24 (LB-89657B)
Q3-100
26-1/4 (667)
Q3/4-100
21-1/4 (540)
16L24 (LB-89657B)
Q4/5-t00
26-1/4 (667)
Q4/5-100
21-1/4 (540)
16L24 (LB-89657B)
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