Carrier CRECOMZR085A00, Installation Instructions Manual

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14
Table 9 — Menu Structure
1
MENU PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT 2
NOTES
STATUS
ECON AVAIL NO YES/NO
ECONOMIZING AVAILABLE
YES = economizing available; the system can use outside air for free cooling when
required
ECONOMIZING NO YES/NO
ECONOMIZING ACTIVE
YES = Outside air being used for first stage cooling
NO = Economizing not active
OCCUPIED NO YES/NO
OCCUPIED
YES = OCC signal received from space thermostat or unitary controller
YES = 24 vac on terminal OCC.
NO = 0 vac on terminal OCC.
HEAT PUMP n/a
COOL
HEAT
HEAT PUMP MODE
(Not available on 2-speed configuration)
COOL Y1-IN OFF ON/OFF
FIRST STAGE COOLING DEMAND (Y1-IN)
Y1-I signal from space thermostat or unitary controller for cooling stage 1.
ON = 24 vac on terminal Y1-I
OFF = 0 vac on terminal Y1-I
COOL Y1-OUT OFF ON/OFF
FIRST STAGE COOLING RELAY OUTPUT
ON = 24 vac on terminal Y1-O; Stage 1 mechanical cooling called on
OFF = 0 vac on terminal Y1-O; no mechanical cooling
COOL Y2-IN OFF ON/OFF
SECOND STAGE COOLING DEMAND (Y2-IN)
Y2-I signal from space thermostat our unitary controller for second stage cooling.
ON = 24 vac on terminal Y2-I
OFF = 0 vac on terminal Y2-I
COOL Y2-OUT OFF ON/OFF
SECOND STAGE COOLING RELAY OUTPUT
ON = 24 vac on terminal Y2-O; stage 2 mechanical cooling called on
OFF = 0 vac on terminal Y2-O; no stage 2 mechanical cooling
MA TEMP _ _ . _°F (or °C)
0°F to 140°F
(–18°C to 60°C)
MIXED AIR TEMPERATURE, Cooling Mode
Displays value of measured mixed air from MAT sensor. Displays _ _ . _ if not
connected, short or out-of-range.
DA TEMP _ _ . _°F (or °C)
0°F to 140°F
(–18°C to 60°C)
DISCHARGE AIR TEMPERATURE, after Heating section
(Accessory sensor required)
Displays when Discharge Air sensor is connected and displays measured discharge
temperature. Displays _ _ . _ if sensor sends invalid value, if not connected, short or
out-of-range.
OA TEMP _ _ . _°F (or °C)
–40°F to 140°F
(–40°C to 60°C)
OUTSIDE AIR TEMPERATURE
Displays measured value of outdoor-air temperature. Displays _ _ . _ if sensor sends
invalid value, short or out-of-range.
OA HUM _ _% 0 to 100%
OUTSIDE AIR RELATIVE HUMIDITY
Displays measured value of outdoor humidity from OA sensor. Displays __% if not
connected, short, or out-of-range.
RA TEMP _ _ . _°F (or °C)
0°F to 140°F
(–18°C to 60°C)
RETURN AIR TEMPERATURE
Displays measured value of return air temperature from RAT sensor. Displays _ _ . _
if sensor sends invalid value, if not connected, short or out-of-range
RA HUM _ _% 0 to 100%
RETURN AIR RELATIVE HUMIDITY
Displays measured value of return air humidity from RA sensor. Displays __% if
sensor sends invalid value, if not connected, short or out-of-range
IN CO2 _ _ _ppm 0 to 2000 ppm
SPACE/RETURN AIR CO
2
(CO
2
sensor required, accessory or factory option)
Displays value of measured CO
2
from CO
2
sensor. Invalid if not connected, short or
out-of-range
DCV STATUS n/a ON/OFF
DEMAND CONTROLLED VENTILATION STATUS
(CO
2
sensor required, accessory or factory option)
Displays ON if above set point and OFF if below set point, and ONLY if a CO
2
sensor
is connected.
DAMPER OUT 2.0V 2.0 to 10.0-v
Displays voltage output to the damper actuator.
0% = OA Damper fully closed
100%= OA Damper full open
ACT POS _ _% 0 to 100%
Displays actual position of outdoor air damper actuator
2.0-v = OA Damper fully closed
10.0-v = OA Damper full open
ACT COUNT n/a 1 to 65535
Displays number of times actuator has cycled.
1 cycle equals accrued 180° of actuator movement in any direction
ACTUATOR n/a
OK/Alarm
(on Alarm menu)
Displays Error if voltage or torque 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
ON = relay closed
OFF = relay open
ERV 3 OFF ON/OFF
ENERGY RECOVERY UNIT RELAY OUTPUT
Output of AUX terminal; displays only if AUX = ERV
ON = relay closed
OFF = relay open
MECH COOL ON 0 0,1, or 2 Displays stage of mechanical cooling 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.