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SERVICE AND TECHNICAL SUPPORT MANUAL
Table 3
Airflow Switch Table
NOMINAL AIRFLOW BASED ON 350 CFM/TON (Factory Default - SW1-5 = OFF, SW4-3 = OFF)
SW2 Clg Default SW3 CF Default
Model Size
O
3
2
1 N
1050
060-14
1050
080-14
060-20
1750
1750
080-20
1750
100-22
1750
120-22
SW2 Clg Default SW3 CF Default
Model Size
O
3
2
1 N
1200
060-14
080-14
1200
2000
060-20
2000
080-20
100-22
2000
2000
120-22
SW2 Clg Default SW3 CF Default
Model Size
O
3
2
1 N
976
060-14
976
080-14
060-20
1627
1627
080-20
1627
100-22
1627
120-22
SW2 Clg Default SW3 CF Default
Model Size
O
3
2
1 N
060-14
1116
1116
080-14
1860
060-20
080-20
1860
1860
100-22
120-22
1860
Adjust Thermostat Heat Anticipator
a. Mechanical thermostat. Set thermostat heat
anticipator to match the amp. draw of the electrical
components in the R−W/W1 circuit. Accurate amp.
draw readings can be obtained at the wires normally
connected to thermostat subbase terminals, R and W.
The thermostat anticipator should NOT be in the
circuit while measuring current.
(1.) Set SW1−2 switch on furnace control board to
ON.
(2.) Remove thermostat from subbase or from wall.
440 04 4700 00
COOLING (SW2) AND CONTINUOUS FAN (SW3) AIRFLOW: SET-UP SWITCH POSITIONS
O
O
3
2
1 N
3
2
1 N
3
2
525
525
700
525
525
700
700
700
875
700
700
875
700
700
875
875
700
875
NOMINAL AIRFLOW BASED ON 400 CFM/TON (SW1-5 = ON, SW4-3 = OFF)
COOLING (SW2) AND CONTINUOUS FAN (SW3) AIRFLOW: SET-UP SWITCH POSITIONS
O
O
3
2
1 N
3
2
1 N
3
2
600
600
800
600
600
800
800
800
1000
800
800
1000
800
800
1000
1000
800
1000
NOMINAL AIRFLOW BASED ON 325 CFM/TON (SW1-5 = OFF, SW4-3 = ON)
COOLING (SW2) AND CONTINUOUS FAN (SW3) AIRFLOW: SET-UP SWITCH POSITIONS
O
O
3
2
1 N
3
2
1 N
3
2
488
488
651
488
488
651
651
651
814
651
651
814
651
651
814
814
651
814
NOMINAL AIRFLOW BASED ON 370 CFM/TON (SW1-5 = ON, SW4-3 = ON)
COOLING (SW2) AND CONTINUOUS FAN (SW3) AIRFLOW: SET-UP SWITCH POSITIONS
O
O
3
2
1 N
3
2
1 N
3
2
558
558
744
558
558
744
744
744
930
744
744
930
744
744
930
930
744
930
Specifications subject to change without notice.
O
O
O
1 N
3
2
1 N
3
2
1 N
875
1050
875
1050
1050
1225
1050
1225
1050
1225
1050
1225
O
O
O
1 N
3
2
1 N
3
2
1 N
1000
1200
1000
1200
1200
1400
1200
1400
1200
1400
1200
1400
O
O
O
1 N
3
2
1 N
3
2
1 N
814
976
814
976
976
1139
976
1139
976
1139
976
1139
O
O
O
1 N
3
2
1 N
3
2
1 N
930
1116
930
1116
1116
1302
1116
1302
1116
1302
1116
1302
(3.) Connect an amp. meter as shown in Figure 5
across the R and W subbase terminals or R and
W wires at wall.
(4.) Record amp. draw across terminals when
furnace is in minimum heat and after blower
starts.
(5.) Set heat anticipator on thermostat per thermostat
instructions and install on subbase or wall.
(6.) Turn SW1−2 switch OFF.
(7.) Install blower door.
b. Electronic thermostat: Set cycle rate for three cycles
per hr.
Gas Furnace: (F/G)9MAE
O
O
3
2
1 N
3
2
1 N
3
1225
1225
1225
1225
1225
1225
1400
1750
1750
1400
1750
1750
1400
1750
2100
1400
1750
2100
O
O
3
2
1 N
3
2
1 N
3
1400
1400
1400
1400
1400
1400
1600
2000
2000
1600
2000
2000
1600
2000
2100
1600
2000
2100
O
O
3
2
1 N
3
2
1 N
3
1139
1139
1139
1139
1139
1139
1302
1627
1627
1302
1627
1627
1302
1627
1953
1302
1627
1953
O
O
3
2
1 N
3
2
1 N
3
1302
1302
1302
1302
1302
1302
1488
1860
1860
1488
1860
1860
1488
1860
2100
1488
1860
2100
11
O
2
1 N
O
2
1 N
O
2
1 N
O
2
1 N
L11F092
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