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HVAC
SPECIFICATIONS
Locke#
Model#
Input
(BTUH)
Output
(BTUH) AFUE
Nominal
Cooling
Capacity
Gas
Inlet
Volts/Hz/
Phase
Min. Time delay
Breaker or
Fuse
Nominal
F.L.A.
Trans.
(V.A.)
Weight
(lbs.)
Motor
HP
L7951
A80DS2V070A12
66,000 52,800 80% 3 tons ½" 120/60/1
15
7.7
40 130 1/2
L7952
A80DS2V090B16
88,000 70,400 80% 4 tons ½" 120/60/1
20
12.8
40 153
1
L7953
A80DS2V110C20
110,000 88,000 80% 5 tons ½" 120/60/1
20
12.8
40 173
1
80% DOWNFLOW TWO STAGE GAS FURNACE
HEAT EXCHANGER DESIGN
• Crimped no-weld aluminized clam shell
heat exchanger construction
CABINET DESIGN
• Compact 33” height
• Standardized widths for easy coil fit
AIR DELIVERY SYSTEM
• ECM™ Variable speed blower motor
• Easily removable slide out blower design
CONTROLS
• Two stage gas valve
• Self diagnostics saves last 5 fault codes
regardless of power interruption
VENTING
• Rotatable draft inducer for venting
flexibility
INSTALLATION FEATURES
• Left and right utility connections
• Removable floor base in Upflow /
Horizontal models
• "L" designated models comply with
California's South Coast Air Quality
Management district Low NOx
requirements
WARRANTY
• 10 year limited parts warranty / lifetime
heat exchanger warranty available. See
limited warranty document for details.
80% Effic ency Two
Stage Gas Furnaces
Downflow
A80DS2V
DIMENSIONS
Locke#
A B C D
L7951
14½" 13
a
"
13"
4¾"
L7952
17½" 16
a
"
16"
6¼"
L7953
21"
19
a
" 19½"
8"