GSZH5 Service Manual

82
SERVICING
Dipswitch Functions
The MBE / AEPF air handler motors have an electronic
control that contains an eight (8) position dip switch. The
function of these dipswitches are shown in Table 1.
Dipswitch
Number
1
2
3 N/A
4 Indoor Thermostat
5 Cooling & Heat
6 Pump CFM
7
8
Function
Electric Heat
CFM Trim Adjust
Dipswitch Functions
Table 1
CFM Delivery
and show the CFM output for dipswitch
combinations 1-2, and 5-6.
Model Switch 1 Switch 2 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
Electric Heat Operation

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

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
contains an eight (8) position dip switch. The function of
these dipswitches are shown in Table 9.
Dipswitch Number Function
1
2
3 N/A
4 Indoor Thermostat
5
6
7
8
Electric Heat
Cooling & Heat Pump CFM
CFM Trim Adjust
Table 9