Carrier 50KC*A/B0 Series, Installation Instructions Manual

Page: 35 / 48

35
SYSTEM SETUP
INSTALL 01/01/10 N/A Display order = MM/DD/YY
Setting order = DD, MM, then YY.
UNITS DEG F F or C Sets economizer controller in degrees Fahrenheit or Celsius
EQUIPMENT CONV Conventional or HP CONV = conventional;
HP O/B = Ena
b le Heat Pump mode. Use AUX2 I for Heat Pump input from
thermostat or controller.
See Menu Note 4.
AUX2 IN W SD/W or HP(O)/HP(B) In CONV mode:
SD + Ena b les configuration of shutdown (default);
W = Informs controller that system is in heating mode.
NOTE: If using 2-speed fan mode, you must program CONV mode for W.
Shutdown is not availa
b le in 2-speed fan mode. See Menu Note 4.
In HP O/B mode:
HP(O) = energize heat pump on Cool (default);
HP(B) = energize heat pump on heat.
FAN SPEED 2 speed 1 speed/2 speed Sets the economizer controller for operation of 1 speed or 2 speed supply
fan.
NOTE: 2-speed fan option also needs Heat (W1) programmed in AUX 2 In.
See Menu Note 4.
FAN CFM 5000cfm 100 to 15000 cfm;
increment
b y 100
UNIT DESIGN AIRFLOW (CFM)
Enter only if using DCVAL ENA = AUTO
The value is found on the nameplate la
b el for the specific unit.
AUX1 OUT NONE NONE
ERV
EXH2
SYS Select OUTPUT for AUX1 O relay
• NONE = not configured (output is not used)
• ERV = Energy Recovery Ventilator
††
• EXH2 = second damper position relay closure for second exhaust fan
• SYS = use output as an alarm signal
OCC INPUT INPUT or ALWAYS OCCUPIED MODE BY EXTERNAL SIGNAL
When using a set
b ack thermostat with occupancy out (24 vac), the 24 vac
is input “INPUT” to the OCC terminal. If no occupancy output from the ther-
mostat then change program to “ALWAYS” OR add a jumper from terminal
R to OCC terminal.
FACTORY DEFAULT NO NO or YES Resets all set points to factory defaults when set to YES. LCD will b riefly
flash YES and change to NO b ut all parameters will change to the factory
default values.
NOTE: RECHECK AUX2 IN and FANTYPE for re
q uired 2-speed values.
ADVANCED
SETUP
MA LO SET 45°F 35 to 55 F;
Incremented
b y 10
SUPPLY AIR TEMPERATURE LOW LIMIT
Temperature to achieve Freeze Protection (close damper and alarm if tem-
perature falls
b elow setup value).
FREEZE POS CLO CLO or MIN FREEZE PROTECTION DAMPER POSITION
Damper position when freeze protection is active (closed or MIN POS).
CO2 ZERO 0ppm 0 to 500 ppm;
Increment
b y 10
CO
2
ppm level to match CO
2
sensor start level.
CO2 SPAN 2000ppm 1000 to 3000 ppm;
Increment
b y 10
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 hrs or OFF COOLING STAGE 3 DELAY
Delay after stage 2 cool has
b een active. Turns on second stage of cooling
when economizer is first stage and mechanical cooling is second stage.
Allows three stages of cooling, 1 economizer and 2 mechanical.
OFF = no Stage 3 cooling
SD DMPR POS CLO CLO or OPN Indicates shutdown signal from space thermostat or unitary controller.
When controller receives 24 Vac input on the SD terminal in conventional
mode, the OA damper will open if programmed for OPN and OA damper
will close if programmed for CLO. All other controls, e.g., fans, etc. will shut
off.
DA LO ALM 45 F (7 C) 35 to 65 F; (2 to 18 C)
Incremented
b y 5 deg.
Used for alarm for when the DA air temperature is too low. Set lower range
of alarm,
b elow this temperature the alarm will show on the display.
DA HI ALM 80 F (27 C) 70 to 180 F; (21 to 82
C) Incremented
b y 5
deg.
Used for alarm for when the DA air temperature is too high. Set upper
range of alarm, a
b ove this temperature the alarm will show on the display.
DCVCAL ENA MAN MAN (manual) AUTO Turns on the DCV automatic control of the dampers. Resets ventilation
b ased on the RA, OA, and MA sensor conditions. Re q uires all 3 RA, OA,
and MA sensors.
ADVANCED
SETUP (CONT)
MAT T CAL 0.0°F ±2.5 F SUPPLY AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of cali
b ration temperature sen-
sor.
OAS T CAL 0.0°F ±2.5 F OUTSIDE AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of cali
b ration temperature sen-
sor.
OA H CAL 0% RH ±10% RH OUTSIDE AIR HUMIDITY CALIBRATION
Allows for operator to adjust for an out of cali
b ration humidity sensor.
RA T CAL 0.0°F ±2.5 F RETURN AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of cali
b ration temperature sen-
sor.
RA H CAL 0% RH ±10% RH RETURN AIR HUMIDITY CALIBRATION
Allows for operator to adjust for an out of cali
b ration humidity sensor.
DA T CAL 0.0°F ±2.5 F DISCHARGE AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of cali
b ration temperature sen-
sor.
2SP FAN DELAY 5 Minutes 0 to 20 minutes in 1
minute increments TIME DELAY ON 2nd STAGE ECONOMIZING
When in economizing mode this is the delay for the high speed fan to try to
satisfy the call for second stage cooling
b efore the first stage mechanical
cooling is ena b led.
Table 8 — Menu Structure* (cont)
MENU PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT
†
NOTES