Carrier RTU OPEN 11-808-427-01 - Manual (Page 66)

Appendix A: RTU Open Points/Properties
60 RTU Open
Unit Configuration
Navigation: i-Vu / Field Assistant:
BACview: Properties > Equipment > Configuration > Unit Configuration
HOME > CONFIG > UNIT
Point Name/Description Default/Range
Fan Mode – The supply fan's operating mode.
Options:
Auto - The fan cycles on/off in conjunction with heating or cooling.
Continuous - The fan runs continuously during occupancy & intermittently during
unoccupied periods with heating or cooling.
Always On - The fan runs continuously regardless of occupancy or calls for heating and
cooling.
D:
R: Continuous
Auto
Continuous
Always On
Unit Start Delay – How long the controller delays normal operation after power is
restored. Typically used to prevent excessive demand when recovering from a power
failure.
D:
R: 5 sec
0 to 30 sec
Fan Off Delay – How long the supply fan runs after receiving a valid stop command. D:
R: 90 seconds
0 to 180 seconds
Minimum Cooling SAT – In cooling mode, the cooling outputs are controlled so that the
supply air temperature does not drop below this value.
D:
R: 50°F
45 to 75°F
Maximum Heating SAT – In heating mode, the heating outputs are controlled so the
supply air temperature does not rise above this value.
D:
R: 120°F
85 to 150°F
Vent Dmpr Pos / DCV Min Pos – The minimum outdoor air damper position maintained
during occupied periods.
D:
R: 50% Open
0 to 100% Open
DCV Max Vent Damper Pos – The maximum outdoor air damper position allowed while
DCV is active.
D:
R: 50% Open
10 to 60% Open
Supply Fan Service Alarm Timer – A Supply Fan Runtime alarm is generated when the
supply fan run hours exceed this value. Set to 0 to disable.
D:
R: 600 hr
0 to 9999 hr
Compressor 1 Service Alarm Timer – A Compressor 1 Runtime alarm is generated when
the compressor 1 run hours exceed this value. Set to 0 to disable.
D:
R: 0 hr
0 to 9999 hr
Compressor 2 Service Alarm Timer – A Compressor 2 Runtime alarm is generated when
the compressor 2 run hours exceed this value. Set to 0 to disable.
D:
R: 0 hr
0 to 9999 hr
Filter Service Alarm Timer – The amount of time the fan will run before generating a
Filter Alarm . Set to 0 to disable the alarm and reset accumulated fan hours.
D:
R: 600 hr
0 to 9999 hr
Pushbutton Override – Enables or disables the use of a pushbutton override from a local
space temperature sensor.
D:
R: Enable
Disable/Enable
Cooling Lockout Temp – The outdoor air temperature at which cooling is inhibited. D:
R: 45°F
0 to 80°F
Economizer High OAT Lockout – The outdoor air temperature at which economizer
cooling is inhibited.
D:
R: 75°F
55 to 80°F