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centage of motor output using the Unit Controller settings
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located on the inside of the compressor access panel.
CAUTION
The BLOWER CALIBRATION process starts the
indoor blower at operational speeds and moves
the economizer damper blades. Before starting this
process, replace any access panels and close all
unit doors except compressor compartment door.
Blower calibration is required only on units that are newly
after installation..
Use the mobile service app to navigate to the SET-
After the new
-
will display CALIBRATION SUCCESS and go back to the
blower calibration screen.
IMPORTANT - The default value for Cooling Low motor
speed is lower than a traditional singe- or two-speed unit.
If operating the unit with a 2- or 3-stage controller (2- or
3-stage thermostat, DDC controller, etc.), it is recom-
mended to increase the Cooling Low CFM default value
to a suitable level for part load cooling (typically 60% of
full load CFM).
TABLE 5
DIRECT DRIVE PARAMETER SETTINGS - 581102-01
Parameter
Setting
Description
Note: Any changes to Smoke CFM setting must be adjusted before the other CFM settings. Use SETTINGS > RTU OPTIONS >
EDIT PARAMETERS = 12 for EBM, 6 for ECM
Percentage of RPM for blower smoke speed.
SETUP > TEST & BALANCE > BLOWER
Percentage of RPM for blower heating high speed.
Percentage of RPM for blower heating low speed (P volt gas
heat only).
Percentage of RPM for blower cooling high speed.
Percentage of RPM for blower cooling low speed and vent
speed for standard static blowers.
Percentage of RPM for high static blower ventilation speed.
SETUP > TEST & BALANCE > DAMPER
Minimum damper position for high speed blower operation.
Minimum damper position for low speed blower operation. De-
Minimum damper position for low power exhaust operation.
SETTINGS > RTU OPTIONS > EDIT PARAMETERS = 216
SETTINGS > RTU OPTIONS > EDIT PARAMETERS = 10 (Applies to Thermostat Mode ONLY)
sec
Number of seconds to hold blower at low speed before switching
Installer:
when Unit Controller is replaced or reprogrammed.
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