17
1
2
1
2
1
2
1
2
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Tap A
Tap B
Cooling Airflow Speed Tap (*indicates factory setting)
Tap C
Tap D*
Figure 22
3
4
OFF
OFF
OFF
OFF
ON
ON
ON
ON
+5%
-5%
Airflow Adjust Taps (*indicates factory setting)
+10%
-10%
3
4
3
4
3
4
Figure 23
12
13
12
13
12
13
12
13
OFF
OFF
OFF
OFF
ON
ON
ON
ON
25%
50%*
Fan Only Selection (*indicates factory setting)
75%
100%
12
13
12
13
12
13
12
13
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Fan Only Selection (*indicates factory setting)
Figure 24
Dip Switches - Cooling Airflow and Airflow Adjust Taps
4. Locate the blower speed selection DIP switches on the
integrated control module. Select the desired “cooling”
speed tap by positioning switches 1 and 2 appropriately.
If airflow adjustment is required, set dip switch S8 (trim
enable) to ON (trim enable default is off). Then select the
desired “adjust” tap by positioning switches S3 and S4
appropriately. Refer to the following Airflow Adjust Taps
figure for switch positions and their corresponding taps.
Verify CFM by counting the number of times the green CFM
LED blinks.
5. Continuous fan speeds that provide 25, 50, 75, and 100% of
the air handler’s maximum airflow capability are selectable
via dip switches S12 and S13.
If the air handler’s maximum airflow capability is 2000 CFM
and 25% continuous fan speed is selected, the continuous
fan speed will be 0.25 x 2000 CFM = 500 CFM.
6. The multi-speed circulator blower also offers several custom
ON/OFF ramping profiles. These profiles may be used to
enhance cooling performance and increase comfort level.
The ramping profiles are selected using DIP switches 5
and 6. Refer to the following Dip Switches - Cooling Airflow
Ramping Profiles figure for switch positions and their
corresponding taps. Refer to the bullet points below for a
description of each ramping profile. Verify profile selection
by counting the green CFM LED blinks and timing each step
of the ramping profile.
S9
S10
OFF
OFF
OFF
OFF
ON
ON
ON
ON
21 kW* or
25 kW*
19 kW or
20 kW
Electric Heating Airflow (*indicates factory setting)
15 kW
10 kW
OFF
OFF
OFF
OFF
ON
ON
ON
ON
8 kW
6 kW
5 kW
3 kW
S11
S9
S10
S11
S9
S10
S11
S9
S10
S11
S9
S10
S11
S9
S10
S11
S9
S10
S11
S9
S10
S11
NOTE:
Upon start up in communicating mode the circuit board may display an “Ec” error. This is an indication that the dip switches
on the control board need to be configured in accordance with the Electric Heating Airflow Table. Configuring the dip switches and
resetting power to the unit will clear the error code.
Within the thermostat user menu, will display 20 kW for OFF-OFF-ON dip switch selection and 21 kW for OFF-OFF-OFF dip switch
selection.
Figure 25
