Carrier WeatherExpert 50LC - Page 47

47
Menu 2: Advanced Setup
Parameter
Project
Value
Parameter
Default
Value
Parameter
Range and Increment
Notes
MA LO SET 45_F(7_C) 35 to 55_F;
(2 to 13_C)
incremented by 1_
SUPPL Y AIR TEMPERATURE LOW LIMIT
Temperature to achieve Freeze Protec ti on (clos e 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 =c los e d
MIN = MIN POS or VENTMAX
CO2 ZERO 0ppm 0 to 500 ppm:
Increment by 10
CO
2
ppm le ve l to matc h CO
2
Sensor start level.
CO2 SPAN 2000ppm 1000 to 3000 ppm;
Increment by 50
CO
2
ppm span to match CO
2
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 DELAY
Delay after stage 2 for cool has been active. Turns on 2nd stage of
coo l ing when econom ize r is 1st stage and mec hanic al cooli ng is 2nd
SD DMPR PO S CLO CLO or OPN Function NOT A V AILABLE with 2--- speed mode
DCVCAL ENA MAN MAN (manual) Turns on the DCV autom ati c control of the dampers . Resets ventil ati o n
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 (SA T) sensor
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 calibratio n outside air
tem peratur e (OAT) sensor
OA H CAL 0% RH + / --- 1 0 % R H OUTSIDE AIR HUMIDITY CALIBRATION
All ows for the operator to adjust for an out of calibratio 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 TEMPERA TU RE CALIBRATI 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 operator to adjust for an out of calibrat ion discharge air
tem peratur e (DA T) sensor
2SP FAN DELAY 5 Minutes 0to20minutesin
1 minute increments
TIM E DELAY ON 2ND ST AG E ECONOMI ZI NG
While in the Economizing mode, this is the delay between thermostat
Y2 call and Y1---O output to mechani c al cool i ng stage, to allow high
speed fan operation to attempt to cool space first.