Carrier WeatherMaster 48HC04 Series Installation Instructions Manual page 34

MENU PARAMETER
MIN POS
VENTMAX
SETPOINTS
(cont)
VENTMIN
ERV OAT SP
EXH1 SET
EXH2 SET
INSTALL
UNITS DEG
EQUIPMENT
AUX2 IN
FAN SPEED
SYSTEM
SETUP
FAN CFM
AUX1 OUT
OCC
FACTORY DEFAULT
MA LO SET
ADVANCED
SETUP
FREEZE POS
CO2 ZERO
Table 10 — W7220 Menu Structure* (cont)
PARAMETER PARAMETER
DEFAULT RANGE AND
VALUE INCREMENT
2.8 V 2 to 10 vdc
2 to 10 vdc
2.8 V
100 to 9990 cfm;
increment by 10
2 to 10 vdc
2 to 10 vdc or 100
to 9990 cfm
increment by 10
2.25 V 100 to 9990 cfm;
increment by 10
2 to 10 vdc
0°F to 50°F
(–18°C to 10°C);
†† 32°F (0°C)
increment by
0 to 100%;
50%
increment by 1
0 to 100%;
75%
increment by 1
01/01/10
°F
CONV
Shutdown (SD)
Heat (W1)
W
2 speed 1 speed/2 speed
100 to 15000 cfm;
5000 cfm
increment by 100
NONE
INPUT INPUT or ALWAYS
NO NO or YES
35°F to 65°F
(2°C to 18°C);
45°F (7°C)
Increment by
CLO CLO or MIN
0 to 500 ppm;
0ppm
Increment by 10
EXPANDED PARAMETER NAME
†
VENTILATION MINIMUM POSITION
Displays ONLY if a CO
DCV MAXIMUM DAMPER POSITION
Displays only if a CO
Used for Vbz (ventilation max cfm) set point. VENTMAX is the
same setting as MIN POS would be if unit did not have CO
sensor.
If OA, MA, RA, and CO
ENABLE is set to AUTO mode, the OA dampers are controlled
by CFM and displays from 100 to 9990 CFM.
With 2-speed fan units, VENTMAX L (low speed fan) and
VENTMAX H (high speed fan) settings are required. Default for
VENTMAX L is 3.2V and VENTMAX H is 2.8V
DCV MINIMUM DAMPER POSITION
Displays only if a CO
(ventilation min cfm) set point. This is the ventilation for less than
maximum occupancy of the space.
If OA, MA, RA, and CO
ENABLE is set to AUTO mode, the OA dampers are controlled
by CFM and displays from 100 to 9990 CFM.
With 2-speed fan units VENTMIN L (low speed fan) and
VENTMIN H (high speed fan) settings are required. Default for
VENTMIN L is 2.5V and VENTMIN H is 2.25V
ENERGY RECOVERY VENTILATOR UNIT OUTDOOR AIR
TEMPERATURE SETPOINT
Only when AUX1 O = ERV
1 degree
EXHAUST FAN STAGE 1 SETPOINT
Set point for OA damper position when exhaust fan 1 is powered
by the economizer.
EXHAUST FAN STAGE 2 SETPOINT
Set point for OA damper position when exhaust fan 2 is powered
by the economizer. Only used when AUX1 O is set to EHX2.
Display order = MM/DD/YY
N/A
Setting order = DD, MM, then YY.
°F or °C Sets economizer controller in degrees Fahrenheit or Celsius
CONV CONV = conventional;
or HP O/B = Enable Heat Pump mode. Use AUX2 I for Heat Pump
HP input from thermostat or controller.
In CONV mode:
SD = Enables configuration of shutdown (default);
W = Informs controller that system is in heating mode.
HP(O) In HP O/B mode:
HP(B) 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. The controller does not control the fan, but
positions the OA and RA dampers to heating or cooling mode.
UNIT DESIGN AIRFLOW (CFM)
Enter only if using DCVCAL ENA = AUTO
This is the capacity of the RTU. The value is found on the
nameplate label for the specific unit.
Select OUTPUT for AUX1 O relay
NONE • NONE = not configured (output is not used)
ERV • ERV = Energy Recovery Ventilator
EXH2 • EXH2 = second damper position 24 vac out for second exhaust
SYS 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.
SUPPLY AIR TEMPERATURE LOW LIMIT
Temperature to activate Freeze Protection (close damper or
modulate to MIN POS if temp falls below set value).
1 degree
FREEZE PROTECTION DAMPER POSITION
Damper position when freeze protection is active (closed or MIN
POS).
CO ppm level to match CO
2
34
Notes
sensor is NOT connected.
2
sensor is connected.
2
sensors are connected and DCV CAL
2
sensor is connected. Used for Va
2
sensors are connected and DCV CAL
2
††
sensor start level.
2
2