Carrier WeatherExpert 48LC Installation Instructions Manual page 53

Menu 2: Advanced Setup
Project
Parameter
Value
MA LO SET
FREEZE POS
CO2 ZERO
CO2 SPAN
STG3 DLY
SD DMPR POS
DCVCAL ENA
0.0
MAT T CAL
OA T CAL 2.0
OA H CAL
RA T CAL 4.0
RA H CAL
DA T CAL 0.0
2SP FAN DELAY
Parameter
Parameter
Default
Range and Increment
Value
45_F (7_C) 35 to 55_F;
(2 to 13_C)
incremented by 1_
CLO CLO or MIN
0ppm 0 to 500 ppm:
Increment by 10
2000ppm 1000 to 3000 ppm;
Increment by 50
2.0h 0 min, 5 min, 15 min,
then 15 min intervals.
Up to 4 h
or OFF
CLO CLO or OPN
MAN MAN (manual)
1.0_F +/--- 2.5_F
(or _C) (+/---1.4_C)
3.0_F +/--- 2.5_F
(or _C) (+/---1.4_C)
0% RH +/--- 10% RH
5.0_F +/--- 2.5_F
(or _C) (+/---1.4_C)
0% RH +/--- 10% RH
1.0_F +/--- 2.5_F
(or _C) (+/---1.4_C)
5 Minutes 0 to 20 minutes in
1 minute increments
SUPPLY AIR TEMPERATURE LOW LIMIT
Temperature to achieve Freeze Protection (close damper and alarm if
temperature at SAT location falls below setup value)
FREEZE PROTECTION DAMPER POSITION
Damper position when freeze protection is active
CLO =closed
MIN = MIN POS or VENTMAX
CO ppm level to match CO Sensor start level.
2 2
CO ppm span to match CO sensor.
2 2
COOLING STAGE 3 DELAY
Delay after stage 2 for cool has been active. Turns on 2nd stage of
cooling when economizer is 1st stage and mechanical cooling is 2nd
Function NOT AVAILABLE with 2---speed mode
Turns on the DCV automatic control of the dampers. Resets ventilation
SUPPLY AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration supply air
temperature (SAT) sensor
OUTSIDE AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration outside air
temperature (OAT) sensor
OUTSIDE AIR HUMIDITY CALIBRATION
Allows for the operator to adjust for an out of calibration of outside air
enthalpy sensor
RETURN AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration return air
temperature (RA) sensor
RETURN AIR HUMIDITY CALIBRATION
Allows for the operator to adjust for an out of calibration return air
enthalpy sensor
DISCHARGE AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration discharge air
temperature (DAT) sensor
TIME DELAY ON 2ND STAGE ECONOMIZING
While in the Economizing mode, this is the delay between thermostat
Y2 call and Y1---O output to mechanical cooling stage, to allow high
speed fan operation to attempt to cool space first.
53
Notes