Carrier 50HCQ12 Installation Instructions Manual page 35

MENU PARAMETER
INSTALL
UNITS DEG
EQUIPMENT
AUX2 IN
FAN SPEED
SYSTEM
SETUP
FAN CFM
AUX1 OUT
OCC
FACTORY DEFAULT
MA LO SET
FREEZE POS
CO2 ZERO
CO2 SPAN
STG3 DLY
ADVANCED
SETUP SD DMPR POS
DA LO ALM
DA HI ALM
DCVCAL ENA
MAT T CAL
OAS T CAL
Table 12 — Menu Structure* (cont)
PARAMETER PARAMETER
DEFAULT RANGE AND
VALUE INCREMENT
01/01/10 N/A
F F or C
CONV Conventional or HP
SD/W or HP(O)/
W
HP(B)
2 speed 1 speed/2 speed
100 to 15000 cfm;
5000cfm
increment by 100
NONE
ERV
NONE
EXH2
SYS
INPUT INPUT or ALWAYS
NO NO or YES
35 to 55 F;
45°F
Incremented by 10
CLO CLO or MIN
0 to 500 ppm;
0ppm
Increment by 10
1000 to 3000 ppm;
2000ppm
Increment by 10
0 min, 5 min, 15
min, then 15 min
2.0h
intervals. Up to 4
hrs or OFF
CLO CLO or OPN
35 to 65 F; (2 to
45 F (7 C) 18 C) Incremented
by 5 deg.
70 to 180 F; (21 to
80 F (27 C) 82 C) Incremented
by 5 deg.
MAN (manual)
MAN
AUTO
0.0°F ±2.5 F
0.0°F ±2.5 F
†
Display order = MM/DD/YY
Setting order = DD, MM, then YY.
Sets economizer controller in degrees Fahrenheit or Celsius
CONV = conventional;
HP O/B = Enable Heat Pump mode. Use AUX2 I for Heat Pump input
from thermostat or controller.
See Menu Note 4.
In CONV mode:
SD + Enables 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 available 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.
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
AUX2 IN See Menu Note 4.
UNIT DESIGN AIRFLOW (CFM)
Enter only if using DCVAL ENA = AUTO
The value is found on the nameplate label for the specific unit.
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
OCCUPIED MODE BY EXTERNAL SIGNAL
When using a setback thermostat with occupancy out (24 vac), the 24
vac is input "INPUT" to the OCC terminal. If no occupancy output
from the thermostat then change program to "ALWAYS" OR add a
jumper from terminal R to OCC terminal.
Resets all set points to factory defaults when set to YES. LCD will
briefly flash YES and change to NO but all parameters will change to
the factory default values.
NOTE: RECHECK AUX2 IN and FANTYPE for required 2-speed
values.
SUPPLY AIR TEMPERATURE LOW LIMIT
Temperature to achieve Freeze Protection (close damper and alarm if
temperature falls below setup value).
FREEZE PROTECTION DAMPER POSITION
Damper position when freeze protection is active (closed or MIN
POS).
CO ppm level to match CO
2
CO ppm span to match CO
2
COOLING STAGE 3 DELAY
Delay after stage 2 cool has been 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
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.
Used for alarm for when the DA air temperature is too low. Set lower
range of alarm, below this temperature the alarm will show on the
display.
Used for alarm for when the DA air temperature is too high. Set upper
range of alarm, above this temperature the alarm will show on the
display.
Turns on the DCV automatic control of the dampers. Resets
ventilation based on the RA, OA, and MA sensor conditions. Requires
all 3 RA, OA, and MA sensors.
SUPPLY AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration temperature
sensor.
OUTSIDE AIR TEMPERATURE CALIBRATION
Allows for the operator to adjust for an out of calibration temperature
sensor.
35
NOTES
††
sensor start level.
2
sensor.
2