Carrier 50HCQA07 Installation Instructions Manual page 38

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
Table 10 — Menu Structure* (cont)
PARAMETER PARAMETER
DEFAULT RANGE AND
VALUE INCREMENT
01/01/10 N/A
F F or C
CONV Conventional or HP
W SD/W or HP(O)/
HP(B)
2 speed 1 speed/2 speed
5000cfm 100 to 15000 cfm;
increment by 100
NONE NONE
ERV
EXH2
SYS
INPUT INPUT or ALWAYS
NO NO or YES
45°F 35 to 55 F;
Incremented by 10
CLO CLO or MIN
0ppm 0 to 500 ppm;
Increment by 10
2000ppm 1000 to 3000 ppm;
Increment by 10
2.0h 0 min, 5 min, 15 min,
then 15 min intervals.
Up to 4 hrs or OFF
CLO CLO or OPN
45 F (7 C) 35 to 65 F; (2 to
18 C) Incremented
by 5 deg.
80 F (27 C) 70 to 180 F; (21 to
82 C) Incremented
by 5 deg.
MAN MAN (manual) AUTO Turns on the DCV automatic control of the dampers. Resets ventilation based
†
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 AUX 2 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 tem-
perature 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 pro-
grammed 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.
on the RA, OA, and MA sensor conditions. Requires all 3 RA, OA, and MA
sensors.
38
NOTES
††
sensor start level.
2
sensor.
2