Service Instructions

SERVICING
96
Model Switch 5 Switch 6 CFM
OFF
OFF
1,200
ON
OFF
1,000
OFF
ON
800
ON ON 600
OFF
OFF
1,600
ON
OFF
1,400
OFF
ON
1,200
ON ON 1,000
OFF
OFF
2,000
ON
OFF
1,800
OFF
ON
1,600
ON ON 1,200
MBE1200
MBE1600
MBE2000
Cooling/Heat Pump Operation
Table 3
THERMOSTAT “FAN ONLY” MODE
During Fan Only Operations, the CFM output is 30% of the cooling
setting.
Dipswitch Functions
The AEPF air handler motor has an electronic control that con-
tains an eight (8) position dip switch. The function of these
dipswitches are shown in Table 9.
Dipswitch Number Function
1
2
3N/A
4 Indoor Thermostat
5
6
7
8
Electric Heat
Cooling & Heat Pump CFM
CFM Trim Adjust
Table 9
CFM Delivery
Tables 10-Electric Heat and 11-Cooling/Heat Pump show the CFM
output for dipswitch combinations 1-2, and 5-6.
1278
OFF OFF OFF OFF 1100 1210
ON OFF OFF OFF 890 935
OFF ON OFF OFF 700 770
OFF OFF OFF OFF 2050 2150
AEPF3036
ON OFF OFF OFF 1750 1835
AEPF3137
OFF ON OFF OFF 1600 1680
AEPF4260
ON ON OFF OFF 1200 1260
ON ON OFF ON 1020 1070
Model
Switch Switch
Emergecny
(Electric)
Heat
Heat Pump
w/Backup
Heat
AEPF1830
Table 10
5678
OFF OFF OFF OFF 2 ½ 1100
ON OFF OFF OFF 2 800
OFF ON OFF OFF 1 ½ 600
OFF OFF OFF OFF 5 1800
AEPF3036 ON OFF OFF OFF 4 1580
AEPF3137 OFF ON OFF OFF 3 ½ 1480
AEPF4260 ON ON OFF OFF 3 1200
ON ON OFF ON 2 ½ 1020
Model
Switch Switch
Nominal
Cooling
Tonnage
CFM
AEPF183
0
Table 11
Thermostat “Fan Only Mode”
During “Fan Only Mode” operation, the CFM output is 30% of the
cooling setting.
CFM Trim Adjust
Minor adjustments can be made through the dip switch combi-
nation of 7-8. The following Table 12 shows the switch position
for this feature.
CFM Switch 7 Switch 8
+10% ON OFF
-15% OFF ON
Humidity Control
When using a Humidistat (normally closed), cut jumper PJ6 on the
control board. The Humidistat will only affect cooling airflow by
adjusting the Airflow to 85%.