Carrier WeatherMaker 48TC Series Installation Instructions Manual page 46

MENU PARAMETER
MAT SET
LOW T LOCK
DRYBLB SET
ENTH CURVE
DCV SET
MIN POS
VENTMAX
With 2-speed fan units VENT-
MAX L (low speed fan) and
VENTMAX H (high speed fan)
settings are required
SET POINTS
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
INSTALL
UNITS DEG
EQUIPMENT
AUX2 IN
FAN SPEED
SYSTEM SETUP
FAN CFM
AUX1 OUT
OCC
Table 12 — Menu Structure* (cont)
PARAMETER PARAMETER
DEFAULT RANGE AND
VALUE INCREMENT
53F (3°C to 18°C);
increment by 1°F
–45°F to 80°F
32F (–43°C to 27°C);
increment by 1°F
63F (9°C to 27°C);
increment by 1°F
ES1,ES2,ES3,ES4,
ES3
500 to 2000 ppm;
1100ppm
increment by 100
2.8 V
2.8 V
100 to 9990 cfm;
increment by 10
2.25 V
2 to 10 vdc or 100 to
9990 cfm increment
100 to 9990 cfm;
increment by 10
††
32°F (–18°C to 10°C);
increment by 1°F
50%
increment by 1
01/01/10
F
CONV Conventional or HP
W SD/W or HP(O)/
2 speed 1 speed/2 speed
5000cfm 100 to 15000 cfm;
increment by 100
NONE
INPUT INPUT or ALWAYS
†
38°F to 65°F SUPPLY AIR set point
Set point determines where the economizer will modulate the OA damper
to maintain the mixed air temperature.
COMPRESSOR LOW TEMPERATURE LOCKOUT
Set point determines outdoor temperature when the mechanical cooling
cannot be turned on. Commonly referred to as the Compressor lockout.
OA DRY BULB TEMPERATURE CHANGEOVER SET POINT
48°F to 80°F Set point determines where the economizer will assume outdoor air tem-
perature 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
or ES5 Enthalpy boundary "curves" for economizing using single enthalpy.
DEMAND CONTROLLED VENTILATION
Displays only if CO
trolled Ventilation of space. Above the set point, the OA 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
cfm) set point. 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
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
2 to 10 vdc 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
cfm) set point. Displays 2 to 10 V if <3 sensors (RA, OA, and MA). Va is
by 10 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
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
2 to 10 vdc speed fan) settings are required. Default for VENTMIN L is 3.2V and
VENTMIN H is 2.8V
0°F to 50°F ENERGY RECOVERY VENTILATOR UNIT OUTDOOR AIR TEMPERA-
TURE SET POINT
Only when AUX1 O = ERV
EXHAUST FAN STAGE 1 SET POINT
Set point for OA damper position when exhaust fan 1 is powered by the
0 to 100%;
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%
N/A Display order = MM/DD/YY
Setting order = DD, MM, then YY.
F or C 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:
HP(B) 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.
NONE Select OUTPUT for AUX1 O relay
ERV • NONE = not configured (output is not used)
EXH2 • ERV = Energy Recovery Ventilator
SYS • 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 as "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.
46
NOTES
sensor is connected. Set point for Demand Con-
2
sensor is NOT connected.
2
sensor is connected. Used for Vbz (ventilation max
2
sensors are connected and DCV CAL ENABLE is
2
sensor is connected. Used for Ba (ventilation min
2
sensors are connected and DCV CAL ENABLE is
2
††