Carrier 59SP6A Installation, Start-Up, Operating, Service And Maintenance Instructions page 55

59SP6A: Installation, Start-up, Operating, Service and Maintenance Instructions
NOTE: If a bypass humidifier is used, setup switch SW1-4
(Comfort/Efficiency) should be in OFF=Efficiency position. This
compensates for the increased temperature in return air resulting from
bypass.
Air Conditioning (A/C) Setup Switches (SW2-6, 7, 8)
The air conditioning setup switches are used to match furnace airflow to
required cooling airflow or high stage cooling airflow when a two-stage
outdoor unit is used. Refer to the Adjustments section for setup switch
configurations.
To set the desired cooling airflow:
1. Remove blower door.
2. Locate A/C setup switches on furnace control.
3. Determine air conditioning tonnage used.
4. Configure the switches for the required cooling airflow.
NOTE: Incorrect airflow caused by improper A/C switch setup may
cause condensate blow-off or a frozen indoor coil in the cooling mode.
5. Replace blower door.
Continuous Fan (CF) Setup Switches (SW2-3, 4, 5)
The CF setup switches are used to select desired airflow when
thermostat is in continuous fan mode or to select low-cooling airflow for
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
two-speed cooling units. Refer to the Adjustments section for setup
switch configurations. To set desired cooling airflow:
1. Remove blower door.
2. Locate CF setup switches on furnace control.
3. Determine air conditioning tonnage used for low-cooling (when
used) or desired continuous fan airflow.
4. Configure the switches for the required airflow.
5. Replace blower door.
Setup Switches (SW2-1, 2)
The furnace control has two additional setup switches labeled SW2-1, 2.
Setup switch SW2-1 is used for twinning on approved models.
SW2-2 is used to adjust airflow. Refer to the Adjustments section for
setup switch configurations.
Refer to
1. Remove blower door.
2. Locate setup switch SW2 on furnace control.
3. Configure the switches as necessary for the application.
4. Replace blower door.
Fig. 61 – Furnace Setup Switch Description
55
Fig. 61 for configuration of SW2 airflow options.
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