Page 15
LHT/LDT024, 036, 048, 060
TABLE 4
DIRECT DRIVE PARAMETER SETTINGS - 581102-01
024-072 Parameter Settings
Parameter Field 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
BLOWER SMOKE CFM %
Percentage of torque for blower smoke speed.
SETUP > TEST & BALANCE > BLOWER
BLOWER HEATING HIGH CFM %
Percentage of torque for blower heating high speed.
BLOWER HEATING LOW CFM %
Percentage of torque for blower heating low speed (P volt gas heat only).
BLOWER COOLING HIGH CFM %
Percentage of torque for blower cooling high speed.
BLOWER COOLING LOW CFM %
Percentage of torque for blower cooling low speed and vent speed for standard
static blowers.
BLOWER VENTILATION CFM %
Percentage of torque for high static blower ventilation speed.
SETUP > TEST & BALANCE > DAMPER
BLOWER HIGH CFM DAMPER POS % %
Minimum damper position for high speed blower operation. Default 0%.
BLOWER LOW CFM DAMPER POS % %
Minimum damper position for low speed blower operation. Default 0%.
POWER EXHAUST DAMPER POS % %
Minimum damper position for low power exhaust operation. Default 50%.
SETTINGS > RTU OPTIONS > EDIT PARAMETERS = 216
POWER EXHAUST DEADBAND % %
Deadband % for power exhaust operation. Default 10%.
SETTINGS > RTU OPTIONS > EDIT PARAMETERS = 10 (Applies to Thermostat Mode ONLY)
FREE COOLING STAGE-UP DELAY sec
Number of seconds to hold blower at low speed before switching to blower at high
speed. Default 300 seconds.
Installer: Record any parameter changes under “Field Setting” column. Settings need to be recorded by installer for use when Unit Controller is replaced or
reprogrammed.
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