Carrier WeatherMaster 50HC14 Installation Instructions Manual page 30

MENU PARAMETER
EXH2 OUT
ERV
MECH COOL ON
STATUS
or
(CONT)
HEAT STAGES ON
FAN SPEED
W (HEAT ON)
MAT SET
LOW T LOCK
DRYBLB SET
ENTH CURVE
DCV SET
MIN POS
VENTMAX
With 2-speed fan units
VENTMAX L (low-speed
fan) and VENTMAX H
(high- speed fan) settings
SETPOINTS are required
VENTMIN
With 2-speed
fan units VENTMIN L
(low-
speed fan) and VENTMIN
H (high-speed fan) set
ERV OAT SP
EXH1 SET
With 2-speed fan units
Exh1 L (low-speed fan)
and Exh1 H (high-speed
fan) settings are required
EXH2 SET
With 2-speed fan units
Exh2 L (low-speed fan)
and Exh2 H (high-speed
fan) settings are required
Table 8 — Menu Structure (cont)
PARAMETER PARAMETER
DEFAULT RANGE AND
VALUE INCREMENT
OFF ON/OFF
OFF ON/OFF
0 0, 1, or 2
N/A LOW or HIGH
N/A ON/OFF
38 to 65°F;
53 F
increment by 1
-45 to 80°F;
32 F
increment by 1
48 to 80°F;
63 F
increment by 1
ES1,ES2,ES3,ES4
ES3
, or ES5
500 to 2000ppm;
1100ppm
increment by 100
2.8 V 2 to 10 vdc
2 to 10 vdc
100 to 9990 cfm;
2.8 V
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 to 50°F;
32 F
increment by 1
0 to
50% 100%;increment
by 1
0 to 100%;
75%
increment by 1
30
NOTES
EXHAUST STAGE 2 RELAY OUTPUT
Output of AUX terminal; displays only if AUX = EXH2
ENERGY RECOVERY VENTILATOR
Output of AUX terminal; displays only if AUX = ERV
Displays stage of mechanical cooling that is active.
Displays the stage of heat pump heating that is active.
SUPPLY FAN SPEED
Displays speed setting of fan on a 2-speed fan unit.
HEAT DEMAND STATUS
Displays status of heat demand on a 2-speed fan unit.
SUPPLY AIR SETPOINT
Setpoint determines where the economizer will modulate the OA
damper to maintain the mixed air temperature.
COMPRESSOR LOW TEMPERATURE LOCKOUT
Setpoint determines outdoor temperature when the mechanical
cooling cannot be turned on. Commonly referred to as the
Compressor lockout.
OA DRY BULB TEMPERATURE CHANGEOVER SETPOINT
Setpoint determines where the economizer will assume outdoor
air temperature is good for free cooling; e.g.; at 63°F unit will
economize at 62°F and below and not economize at 64°F and
above. There is a 2°F deadband.
ENTHALPY CHANGEOVER CURVE
Enthalpy boundary "curves" for economizing using single
enthalpy.
DEMAND CONTROLLED VENTILATION
Displays only if CO sensor is connected. Setpoint for Demand
2
Control Ventilation of space. Above the setpoint, the OA
dampers will modulate open to bring in additional OA to maintain
a space ppm level below the setpoint.
VENTILATION MINIMUM POSITION
Displays ONLY if a CO sensor is NOT connected.
2
DCV MAXIMUM DAMPER POSITION
Displays only if a CO sensor is connected. Used for Vbz
2
(ventilation max cfm) setpoint. Displays 2 to 10-v if <3 sensors
(RA,OA, and MA). In AUTO mode dampers controlled by CFM.
If OA, MA, RA, and CO sensors are connected and DCV CAL
2
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 VENT L (low-speed fan) and MIN POS H
(high-speed fan) settings are required. Default for VENTMAX L
is 3.2-v and VENTMAX H is 2.8-v
DCV MINIMUM DAMPER POSITION
Displays only if a CO sensor is connected. Used for Ba
2
(ventilation min cfm) setpoint. Displays 2 to 10-v if <3 sensors
(RA, OA, and MA). Va is only set if DCV is used. This is the
ventilation for less than maximum occupancy of the space. In
AUTO mode dampers controlled by CFM.
If OA, MA, RA, and CO sensors are connected and DCV CAL
2
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 MIN
POS H (high-speed fan) settings are required. Default for
VENTMIN L is 3.2-v and VENTMIN H is 2.8-v
ENERGY RECOVERY VENTILATOR UNIT OUTDOOR AIR
TEMPERATURE SETPOINT
Only when AUX1 O = ERV
EXHAUST FAN STAGE 1 SETPOINT
Setpoint for OA damper position when exhaust fan 1 is powered
by the economizer.
With 2-speed fan units Exh1 L (low-speed fan) and Exh1 H
(high-speed fan) settings are required. Default for Exh1 L is 65%
and Exh1 H is 50%
EXHAUST FAN STAGE 2 SETPOINT
Setpoint for OA damper position when exhaust fan 2 is powered
by the economizer. Only used when AUX1 O is set to EHX2.
With 2-speed fan units Exh2 L (low-speed fan) and Exh2 H
(high-speed fan) settings are required. Default for Exh2 L is 80%
and Exh2 H is 75%