Carrier 50HCQD07, Installation Instructions Manual

Page: 37 / 52

37
Table 10 — Menu Structure* (cont)
MENU PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT
†
NOTES
STATUS
(CONT)
ACT COUNT N/A 1 to 65535 Displays number of times actuator has cycled.
1 cycles e
q uals 180 deg. of actuator movement in any direction.
ACTUATOR N/A OK/Alarm (on Alarm
menu) Displays ERROR if voltage or tor q ue is below actuator range.
EXH1 OUT OFF ON/OFF EXHAUST STAGE 1 RELAY OUTPUT
Output of EXH1 terminal:
ON = relay closed
OFF = relay open
EXH2 OUT OFF ON/OFF EXHAUST STAGE 2 RELAY OUTPUT
Output of AUX terminal; displays only if AUX = EXH2
ERV OFF ON/OFF ENERGY RECOVERY VENTILATOR
Output of AUX terminal; displays only if AUX = ERV
MECH COOL ON
or
HEAT STAGES ON 0 0, 1, or 2 Displays stage of mechanical cooling that is active.
Displays the stage of heat pump heating that is active.
FAN SPEED N/A LOW or HIGH SUPPLY FAN SPEED
Displays speed setting of fan on a 2-speed fan unit.
W (HEAT ON) N/A ON/OFF HEAT DEMAND STATUS
Displays status of heat demand on a 2-speed fan unit.
SETPOINTS
MAT SET 53F
38 to 65 F; increment
by 1
SUPPLY AIR SETPOINT
Setpoint determines where the economizer will modulate the OA damper to
maintain the mixed air temperature.
LOW T LOCK 32F
-45 to 80 F;
increment by 1
COMPRESSOR LOW TEMPERATURE LOCKOUT
Setpoint determines outdoor temperature when the mechanical cooling cannot
be turned on. Commonly referred to as the Compressor lockout.
DRYBLB SET 63F
48 to 80 F; increment
by 1
OA DRY BULB TEMPERATURE CHANGEOVER SETPOINT
Setpoint determines where the economizer will assume outdoor air tempera-
ture 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.
ENTH CURVE ES3
ES1,ES2,ES3,ES4,
or ES5 ENTHALPY CHANGEOVER CURVE
Enthalpy boundary “curves” for economizing using single enthalpy.
DCV SET 1100ppm
500 to 2000ppm;
increment by 100
DEMAND CONTROLLED VENTILATION
Displays only if CO
2
sensor is connected. Setpoint for Demand Controlled
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.
MIN POS 2.8 V 2 to 10 Vdc
VENTILATION MINIMUM POSITION
Displays ONLY if a CO
2
sensor is NOT connected.
VENTMAX
With 2-speed fan units
VENTMAX L (low speed
fan) and VENTMAX H
(high speed fan) settings
are re
q uired
2.8 V
2 to 10 Vdc
DCV MAXIMUM DAMPER POSITION
Displays only if a CO
2
sensor is connected. Used for Vbz (ventilation max cfm)
setpoint. Displays 2 to 10 V if <3 sensors (RA,OA, and MA). In AUTO mode
dampers controlled by CFM.
100 to 9990 cfm;
increment
by 10 If OA, MA, RA, and CO
2
sensors are connected and DCV CAL ENABLE is set
to AUTO mode, the OA dampers are controlled by CFM and displays from 100
to 9990 CFM.
2 to 10 Vdc
With 2-speed fan units VENT L (low speed fan) and MIN POS H (high speed
fan) settings are re
q uired. Default for VENTMAX L is 3.2V and VENTMAX H is
2.8V
VENTMIN
With 2-speed
fan units VENTMIN L (low
speed fan) and VENTMIN
H (high speed fan) set 2.25 V
2 to 10 Vdc or 100 to
9990 cfm increment
by 10
DCV MINIMUM DAMPER POSITION
Displays only if a CO
2
sensor is connected. Used for Ba (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.
100 to 9990 cfm;
increment
by 10 If OA, MA, RA, and CO
2
sensors are connected and DCV CAL ENABLE is set
to AUTO mode, the OA dampers are controlled by CFM and displays from 100
to 9990 CFM.
2 to 10 Vdc
With 2-speed fan units VENTMIN L (low speed fan) and MIN POS H (high
speed fan) settings are re
q uired. Default for VENTMIN L is 3.2V and VENT-
MIN H is 2.8V
ERV OAT SP
††
32°F
0 to 50 F; increment
by 1
ENERGY RECOVERY VENTILATOR UNIT OUTDOOR AIR TEMPERATURE
SETPOINT
Only when AUX1 O = ERV
EXH1 SET
With 2-speed fan units
Exh1 L (low speed fan) and
Exh1 H (high speed fan)
settings are re
q uired
50%
0 to 100%;increment
by 1
EXHAUST FAN STAGE 1 SETPOINT
Setpoint for OA damper position when exhaust fan 1 is powered by the econo-
mizer.
With 2-speed fan units Exh1 L (low speed fan) and Exh1 H (high speed fan)
settings are re
q uired. Default for Exh1 L is 65% and Exh1 H is 50%
EXH2 SET
With 2-speed fan units
Exh2 L (low speed fan) and
Exh2 H (high speed fan)
settings are re
q uired
75%
0 to 100%; increment
by 1
EXHAUST FAN STAGE 2 SETPOINT
Setpoint for OA damper position when exhaust fan 2 is powered by the econo-
mizer. 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 re
q uired. Default for Exh2 L is 80% and Exh2 H is 75%