Carrier 48LC - Page 49

49
Menu 2: Advanced Setup
Parameter
Project
Value
Parameter
Default
Value
Parameter
Range and Inc rement
Notes
MA LO SET 45_F(7_C) 35 to 55_F;
(2 to 13_C)
incremented by 1_
SUPPL Y AIR TEMPERATRUE LOW LIMIT
Temperature to achieve Freeze Protec ti on (cl ose damper and alarm if
temperature at SAT location falls below setup value)
FREEZE POS CLO CLO or MIN FREEZE PROTECTION DAMPER POSITION
Damper position when freeze protection is active
CL O = clos e d
MIN = MIN POS or VENTMAX
CO2 ZERO 0ppm 0 to 500 ppm:
Increment by 10
CO
2
ppm level to match CO2 Sensor start level.
CO2 SPAN 2000ppm 1000 to 3000 ppm;
Increment by 50
CO
2
ppm span to match CO2 sensor.
STG3 DLY 2.0h 0 min, 5 min, 15 min,
then 15 min intervals.
Up to 4 h
or OFF
COOLIN G ST A G E 3 DE LAY
Delay after stage 2 for cool has been active. Turns on 2nd stage of
coo l ing when ec ono mi zer i s 1s t stage and mechani c al cooli ng is 2nd
SD DMPR POS CLO CLO or OPN Function NOT AV AI LABLE with 2---speed mode
DCVCAL ENA MAN MAN (manual) Turns on the DCV automat ic control of the dampers . Rese ts ventil ati on
MATTCAL 0.0 1.0_F
(or _C)
+/ --- 2 . 5 _F
( +/ --- 1 . 4 _C)
SUPPL Y AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration supply air
tem peratur e (SAT) senso r
OA T CAL 2.0 3.0_F
(or _C)
+/ --- 2 . 5 _F
( +/ --- 1 . 4 _C)
OUTSIDE AIR TEMPERATURE CALIBRATION
All ows for the operator to adjust for an out of cali bratio n outsi de air
tem peratur e (OA T) se nso r
OA H CAL 0% RH + / --- 1 0 % R H OUTSIDE AIR HUMIDITY CALIBRATION
All ows for the operator to adjust for an out of cali bratio n of outsi de air
enthalpy sensor
RA T CAL 4.0 5.0_F
(or _C)
+/ --- 2 . 5 _F
( +/ --- 1 . 4 _C)
RETURN AIR TEM PERA TU RE CALIBRA TI ON
Allows for the operator to adjust for an out of calibration return air
temperature (RA) sensor
RA H CAL 0% RH + / --- 1 0 % R H RETURN AIR HUMIDITY CALIBRATION
Allows for the operator to adjust for an out of calibration return air
enthalpy sensor
DA T CAL 0.0 1.0_F
(or _C)
+/ --- 2 . 5 _F
( +/ --- 1 . 4 _C)
DISCHARGEAIRTEMPERATURECALIBRATION
All ows for the operato r to adjust for an out of calibrati on disc harge air
tem peratur e (DAT) senso r
2SP FAN DELAY 5 Minutes 0to20minutesin
1 minute increments
TIM E D ELAY ON 2ND ST A GE ECONOMI ZI NG
While in the Economizing mode, this is the delay between thermostat
Y2 cal l and Y1---O output to mec hanic al cool i ng st age, to all ow high
speed fan operation to attempt to cool space first.
48HC48LC