3
MODEL NUMBER NOMENCLATURE
P
95
X
A
T
30
040
A
A
AA
Product
S - Std./PSC
X - High Eff.
Brand
Major Series
T - Two-stage
S - Single-stage
Minor Series
1
Brand
2
Product
Effy.
3 - 4
5
Voltage/Motor
6
Major Series
Htg. Stages
7
Cooling Cap.
8 - 9
10 - 12
Heating Cap.
13
Width/Variation
14
Minor Series
Variations
15 - 16
G
Efficiency
A - 14.2” Std.
B - 17.5” Std.
C - 21.0” Std.
D - 24.5” Std.
Variations
Cooling Cap.
040=40,000 BTU
060=60,000 BTU
080=80,000 BTU
100=100,000 BTU
120=120,000 BTU
Not all familes have these models.
A11166
FURNACE COMPONENTS
RATING PLATE NOT SHOWN
(LOCATED ON BLOWER DOOR)
GAS VALVE
MAIN LIMIT SWITCH
(BEHIND GAS VALVE)
REPRESENTATIVE DRAWING ONLY, SOME MODELS MAY VARY IN APPEARANCE.
ELECTRICAL JUNCTION
BOX (IF REQUIRED,
LOCATION MAY VARY)
OPERATING INSTRUCTIONS
NOT SHOWN (LOCATED ON
MAIN FURNACE DOOR, SEE
OPERATING INSTRUCTIONS
INSIDE DOOR FIGURE).
FURNACE
CONTROL
BOARD
MANUAL RESET
ROLLOUT SWITCH
FLAME
SENSOR
MANUAL RESET
ROLLOUT SWITCH
GAS BURNER
HOT SURFACE
IGNITER
INDUCER MOTOR
ASSEMBLY
BLOWER AND
MOTOR
CAPACITOR/
POWER CHOKE
(IF USED)
BLOWER DOOR
SAFETY SWITCH
A11485
