Carrier WeatherMaster 48HC Series Installation Instructions Manual page 45

MENU
STATUS
(cont)
SETPOINTS
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Table 13 — W7220 Menu Structure* (cont)
PARAMETER
PARAMETER DEFAULT
VALUE
DAMPER OUT 2.0v
ACT POS N/A
ACT COUNT N/A
ACTUATOR N/A
EXH1 OUT OFF
EXH2 OUT OFF
ERV OFF
MECH COOL ON
or 0
HEAT STAGES ON
FAN SPEED N/A
W (HEAT IN) N/A
MAT SET 53°F (12°C)
LOW T LOCK 32°F (0°C)
DRYBLB SET 63°F (17°C)
ENTH CURVE ES3
DCV SET 1100ppm
MIN POS 2.8 V
VENTMAX 2.8 V
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PARAMETER
RANGE AND
INCREMENT †
2.0 to 10.0v Displays voltage output to the damper actuator.***
0 to 100% Displays actual position of actuator
Displays number of times actuator has cycled.
1 to 65,535 1 cycle equals 180 degrees of actuator movement in any
direction.
OK/Alarm (on
Displays ERROR if voltage or torque is below actuator range.
Alarm menu)
EXHAUST STAGE 1 RELAY OUTPUT
Displays ON when damper position reaches programmed
percentage set point.
ON/OFF
Output of EXH1 terminal:
ON = relay closed
OFF = relay open
EXHAUST STAGE 2 RELAY OUTPUT
Output of AUX1 O terminal
Displays ON when damper position reaches programmed
ON/OFF percentage set point.
ON = 24 vac output
OFF = No output
Displays only if AUX1 O = EXH2
ENERGY RECOVERY VENTILATOR
Output of AUX1 O terminal; displays only if AUX1 O = ERV
ON/OFF
ON = 24 vac output
OFF = No Output
Displays stage of mechanical cooling that is active.
0, 1, or 2
Displays the stage of heat pump heating that is active.
SUPPLY FAN SPEED
LOW or HIGH
Displays speed setting of fan on a 2-speed fan unit.
HEAT DEMAND STATUS
ON/OFF
Displays status of heat demand on a 2-speed fan unit.
38°F to 70°F
SUPPLY AIR SETPOINT
(3°C to 21°C);
The economizer will modulate the OA damper to maintain the
increment by 1
mixed air temperature at the set point
degree
COMPRESSOR LOW TEMPERATURE LOCKOUT
–45°F to 80°F
Set point determines outdoor temperature when the mechanical
(–43°C to 27°C);
cooling cannot be turned on. Commonly referred to as the
increment by 1
Compressor lockout. At or below the set point, the Y1-O and Y2-
degree
O will not be energized on the controller.
OA DRY BULB TEMPERATURE CHANGEOVER SETPOINT
48°F to 80°F Dry bulb set point will only appear if using dry bulb changeover.
(9°C to 27°C); Set point determines where the economizer will assume outdoor
increment by air temperature is good for free cooling; e.g.; at 63°F unit will
1 degree economize at 62°F and below and not economize at 64°F and
above. There is a 2°F deadband.
ENTHALPY CHANGEOVER CURVE
ES1,ES2,ES3,ES4, ES curve will only appear if using enthalpy changeover.
or ES5 Enthalpy boundary "curves" for economizing using single
enthalpy. See page 51 for description of enthalpy curves.
DEMAND CONTROLLED VENTILATION
Displays only if CO
500 to 2000 ppm;
Controlled Ventilation of space. Above the set point, the OA
increment by 100
dampers will modulate open to bring in additional OA to maintain
a space ppm level below the set point.
VENTILATION MINIMUM POSITION
2 to 10 vdc
Displays ONLY if a CO
DCV MAXIMUM DAMPER POSITION
Displays only if a CO
2 to 10 vdc 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
100 to 9990 cfm;
ENABLE is set to AUTO mode, the OA dampers are controlled
increment by 10
by CFM and displays from 100 to 9990 CFM.
With 2-speed fan units, VENTMAX L (low speed fan) and
2 to 10 vdc VENTMAX H (high speed fan) settings are required. Default for
VENTMAX L is 3.2V and VENTMAX H is 2.8V
45
EXPANDED PARAMETER NAME
Notes
sensor is connected. Set point for Demand
2
sensor is NOT connected.
2
sensor is connected.
2
sensors are connected and DCV CAL
2
2