Lennox Cold Weather Kit -- TG/KG 024-072 Installation guide

Lennox
Brand
Lennox
Model
Cold Weather Kit -- TG/KG 024-072
Type
Installation guide
Page 1
505,163M
*P505163M*
12/07
*2P1207*
INSTALLATION INSTRUCTIONS FOR COLD WEATHER KIT
USED ON TG/KG 024−072 GAS PACKAGED UNITS
Litho U.S.A.
505,163M
12/2007
Supersedes 9/2006
©2007
COLD WEATHER KIT
PACKAGED UNITS KITS
AND ACCESSORIES
Shipping and Packing List
Package 1 of 1 contains:
1 Cold weather kit assembly
4− #10 Self drilling screws
Application
The cold weather kit heats the compressor compartment
to allow gas valve operation during low outdoor
temperatures.
See table 1 for usage.
TABLE 1
Unit Voltage Kit
P, Y LB−112427A; 19W53
G, M LB−112427B; 19W54
JLB−112427C; 19W62
WARNING
Improper installation, adjustment, alteration, ser-
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser-
vice must be performed by a qualified installer, ser-
vice agency or the gas supplier
CAUTION
Danger of sharp metallic edges. Can cause injury.
Take care when servicing unit to avoid accidental
contact with sharp edges.
Installation
1− Disconnect all power to unit and open compressor
access panel.
2− Install the cold weather assembly in the compressor
compartment as shown in figure 1. Secure with four
provided screws.
3− Route the wires labeled S18 from the cold weather
assembly to the heat section. See figure 1.
4− Make wire connections in heat section as shown in
figure 3. Make wire connections in control as shown
in figure 4.
COLD WEATHER KIT
COMPRESSOR
SECTION
COLD
WEATHER
KIT
Route wires labeled S18
through hole in divider wall.
FIGURE 1
FIGURE 4
S18 S18
Blower Proving
Switch
To P1−5
S18
To S47
Rollout
Switch
1−Disconnect insulated,
braided wire from S18
To S47
Rollout
Switch
S18 S18
Cold
Weather
Kit
S18
2−Connect insulated, braided wire
to Cold Weather Kit S18 (lead will
only fit one of the two wires).
3−Connect the other
Cold Weather Kit
lead to the open ter-
minal on S18 blower
proving switch.
S18
To P1−5
S18
HEAT SECTION WIRING
Page 2
FIGURE 4
COLD WEATHER KIT WIRING
A3
C1 or C12
K8 or
K72
K10
K58
N
K3
K1
T3
TB1
T4
S42
T1
Ground
T1 LINE OR 240
T1−C
TB1−R TB1−C
RC Cold
Weather Kit
Operation
When ambient temperature drops below 20°F (−7°C), S61
closes. When ambient temperature drops below −10°F
(−23°C), S60 closes to energize K125 and bring on HR6
heater.
When ambient temperature rises to 20°F (−7°C), S60
opens to de−energize HR6 heater.
When ambient temperature drops below −20°F (−29°C),
S59 opens to disable GV1 gas valve. S59 closes to allow
heating when temperature rises to 10°F (−12°C).
  • Page 1 1
  • Page 2 2

Lennox Cold Weather Kit -- TG/KG 024-072 Installation guide

Lennox
Brand
Lennox
Model
Cold Weather Kit -- TG/KG 024-072
Type
Installation guide
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