Carrier CRECOMZR067A00, Installation Instructions Manual

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6
Table 5 ─ Menu Structure
a
IMPORTANT: Table 5 illustrates the complete hierarchy. Your menu parameters may be different depending on your configuration.
For example if you do not have a DCV (CO
2
) sensor, then none of the DCV parameters appear.
Menu Parameter
Parameter
Default
Value
Parameter
Range and Increment
b
Notes
STATUS ECON AVAIL NO YES/NO YES = economizing available; the system can use
outside air for free cooling when required
ECONOMIZING NO YES/NO YES = outside air being used for 1
st
stage cooling
OCCUPIED NO YES/NO 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
c
COOL
HEAT
Displays COOL or HEAT when system is set to heat pump
(Non-conventional)
COOL Y1─IN OFF ON/OFF 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 Cool stage 1 Relay Output to stage 1 mechanical cooling
(Y1─OUT terminal)
COOL Y2─IN OFF ON/OFF 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 Cool Stage 2 Relay Output to mechanical cooling
(Y2─OUT terminal)
MA TEMP _ _ . _
o
F 0 to 140
o
F Displays value of measured mixed air from MAT sensor.
Displays _ _ . _
o
F if not connected, short or out-of-range.
DA TEMP _ _ . _
o
F 0 to 140
o
F Displays when Discharge Air sensor is connected and
displays measured discharge temperature.
Displays _ _ . _
o
F if sensor sends invalid value, if not con-
nected, short or out-of-range.
OA TEMP _ _ . _
o
F -40 to 140
o
F Displays measured value of outdoor air temperature.
Displays _ _ . _
o
F if sensor sends invalid value, short or
out-of-range.
OA HUM _ _% 0 to 100% Displays measured value of outdoor humidity from OA
sensor.
Displays _ _% if not connected short, or out-of-range.
RA TEMP _ _ . _
o
F 0 to 140
o
F Displays measured value of return air temperature from
RAT sensor.
Displays _ _ . _
o
F if sensor sends invalid value, if not
connected, short or out-of-range
RA HUM _ _% 0 to 100% Displays measured value of return air humidity from RA
sensor.
Displays _ _% if sensor sends invalid value, if not con-
nected, short or out-of-range
IN CO2 _ _ _ppm 0 to 2000 ppm 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 Displays ON if above setpoint and OFF if below setpoint,
and ONLY if a CO
2
sensor is connected.
DAMPER OUT 2.0V 2.0 to 10.0V Displays voltage output to the damper actuator.
EXH1 OUT OFF ON/OFF Output of EXH1 terminal:
ON = relay closed
OFF = relay open
EXH2 OUT OFF ON/OFF Output of AUX terminal; displays only if AUX = EXH2
ERV OFF ON/OFF Output of AUX terminal; displays only if AUX = ERV
MECH COOL ON 0 0,1, or 2 Displays stage of mechanical cooling that is active.