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Carrier CRECOMZR103A00 - Page 27

Carrier CRECOMZR103A00
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27
Table 21 — Parameter Settings — Advanced
PARAMETER DESCRIPTION VALUE/RANGE DEFAULT
3FREEZE POS Anti-freeze protection damper position (closed or minimum).
CLO
MIN
CLO
3STG3 DLY Highest stage cooling delay time. 0...240m; increment by 5 15m
3SD ACT POS Damper position during shutdown (open or closed).
CLO
OPN
CLO
3DIF T LOC
MAT sensor location:
Choose MAT if the sensor is installed before the DX (Direct Expansion) coil.
Choose LAT if the sensor is installed after the DX coil.
Choose AUTO to let the economizer controller automatically detect the
location.
MAT
LAT
AUTO
LAT
3LAT LOW
Low limit of leaving air temperature.
Dynamic item: Appears only if LAT or AUTO is selected for 3DIF T LOC.
35...65°F, increment by 1 45°F
3LAT HIGH
High limit of leaving air temperature.
Dynamic item: Appears only if LAT or AUTO is selected for 3DIF T LOC.
70...180°F, increment by 1 80°F
3OAT CAL OAT sensor calibration.
–2.5...2.5°F, increment by
0.5
0°F
3RAT CAL
RAT sensor calibration.
Dynamic item: Appears only if an RAT sensor is configured.
–2.5...2.5°F, increment by
0.5
3OAH CAL
OAH sensor calibration.
Dynamic item: Appears only if an OAH sensor is configured.
–10...10%, increment by 0.5 10%
3RAH CAL
RAH sensor calibration.
Dynamic item: Appears only if an RAH sensor is configured.
3MAT CAL MAT or LAT sensor calibration.
–2.5...2.5°F, increment by
0.5
0°F
3MAT SET Setpoint of MAT or LAT sensor. 38...70°F, increment by 1 53°F
3FRZ PROT Anti-freeze protection setpoint of MAT sensor. 35...55°F, increment by 1 45°F
3OAT LOCK OAT lockout setpoint for anti-freeze protection. –45...80°F, increment by 1 32°F
Table 22 — Parameter Settings — I/O Configurations
PARAMETER DESCRIPTION VALUE DEFAULT
6OCC
Configures if occupancy status receives signal from the connected thermostat or
is displayed as ALWAYS in the economizer controller.
T-STAT ALWAYS T-STAT
6AUX1-I
Auxiliary DI-1. Configurable as:
None
Cooling stage 3 (Y3) from thermostat
Heat Conventional (W1) from thermostat
Heat pump (reversing valve O)
Heat pump (reversing valve B)
Pre-occupancy signal from thermostat
Shutdown signal from unit
NONE
Y3 IN W1
HP(O)
HP(B)
PREOCC
SHUTDWN
W1
6AUX2-I
Auxiliary DI-2. Configurable as:
None
Cooling stage 3 (Y3) from thermostat
Heat stage 1 (W1) from thermostat
Heat pump (reversing valve O)
Heat pump (reversing valve B)
Pre-occupancy signal from thermostat
Shutdown signal from unit
NOTE: Whichever is chosen for 6AUX1-I does not appear in the list of 6AUX2-I.
NONE
Y3 IN
W1
HP(O)
HP(B)
PREOCC
SHUTDWN
NONE
6OAT SIG Configures signal type of OAT sensor.
0-10V
NTC10K
NTC10K
6RAT SIG Configures signal type of RAT sensor.
0-10V
NTC10K
NONE
NONE
6OAH SIG Configures signal type of OAH sensor. 0-10V
4-20mA
NONE
NONE
6RAH SIG Configures signal type of RAH sensor.
6MAT SIG Configures signal type of MAT or LAT sensor.
0-10V
NTC10K
NTC10K
6AUX-AI1
Auxiliary AI-1. Configurable as:
•CO
2
sensor
Static pressure (temporarily for CFM commissioning) sensor
None
PRESSURE
CO2
NONE
NONE
6X-AI1 SIG Configures CO
2
sensor type.
0-10V
2-10V
0-5V
0-10V
6CO2 Rng L Configures the low limit of CO
2
measuring range. 0...500; increment by 10 0
6C02 Rng H Configures the high limit of CO
2
measuring range.
1000...3000;
increment by 50
2000
6AUX-AI2
Choose ACT FB if feedback signal is available from the connected damper
actuator. Otherwise, choose NONE.
ACT FB
NONE
ACT FB

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