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LGH/LCH036, 048, 060, 072, 074
TABLE 37
MINIMUM / MAXIMUM CFM
LGH/LCH036-060H Unit Parameter Settings
Parameter Name
LCH/LGH Default Factory Settings
036H4E 048H4E 060H4E
SETUP > TEST & BALANCE > BLOWER
COOLING HI SPEED / HEATING MAXIMUM (480 CFM/TON) 1440 1920 2400
COOLING HI SPEED MINIMUM (280 CFM/TON) 840 1120 1400
COOLING LOW SPEED MINIMUM (220 CFM/TON) 660 880 1100
GAS HEAT - STANDARD - MINIMUM CFM 970 970 970
GAS HEAT - MEDIUM - MINIMUM CFM 1120 1120 1120
GAS HEAT - HIGH - MINIMUM CFM 1310 1310 1310
ELECTRIC HEAT - MINIMUM CFM 1080 1280 1600
VENTILATION MINIMUM (150 CFM/TON) 450 600 750
SETUP > TEST & BALANCE > DAMPER
OUTDOOR AIRFLOW CFM MAXIMUM CFM 450 600 750
SETTINGS > RTU OPTIONS > EDIT PARAMETER = 12
In order for the SMOKE CFM change to take effect, go to SETUP > TEST & BALANCE > BLOWER and run the the wizard. Performing this
task will recalculate the output to the desired CFM. No adjustments are required during this procedure.
MSAV SMOKE CFM MAXIMUM 1440 1920 2400
Installer: Configuration ID 1, position 7 needs to be set to either S or L. Circle applicable unit model number and record any CFM changes under
“Field Set CFM Value” column. Settings need to be recorded by installer for use when Unit Controller is replaced or reprogrammed.
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