Carrier 30MP - Service Configuration; Control Point Selection; Minimum Chillers to Run

Appendix C: 30MP Multi-chiller Points/Properties
30MP Multi-chiller CARRIER CORPORATION ©2018
Installation and Start-up Guide All rights reserved
37
Point Name/Description
Range
High Entering Load Water Temp Alarm Limit
– The
Entering Load Water Temp
must
exceed this value to generate an
Entering Load Water Temperature Alarm
. There is a fixed
hysteresis of 2
°F for return to normal.
D:
R:
125°F
90 to 150°F
Outdoor Air Temperature Alarm
Low OAT Alarm Limit
– The
Outdoor Air Temperature
must drop below this value to
generate an
Outdoor Air Temp Alarm
. There is a fixed hysteresis of 1 °F (.5 °C) for
return to normal.
D:
R:
-65°F
-65 to 40°F
High OAT Alarm Limit
– The
Outdoor Air Temperature
must exceed this value to generate
an
Outdoor Air Temp Alarm
. There is a fixed hysteresis of 1 °F (.5 °C) for return to
normal.
D:
R:
245°F
100 to 245°F
Space Humidity Alarm
Occupied High RH Alarm Limit
– The relative humidity sensor must exceed this value to
generate a
Space Relative Humidity
alarm in the occupied mode if
RH Cooling Setpoint
Reset (Unit Configuration)
is set to
Enable
. There is a fixed hysteresis of 5%rh for return to
normal.
D:
R:
100%rh
45 to 100%rh
Alarm Delay (min/%RH)
– Determines the amount of delay before an occupied RH alarm is
generated when the controller transitions to the occupied mode. The delay time equals this
value multiplied by the difference between the sensor RH value and the occupied RH
setpoint plus 15 minutes.
D:
R:
5 minutes
0 to 30 minutes
Unocc High RH Alarm Limit
– The value that the relative humidity sensor must exceed to
generate a
Space Humidity Alarm
in the unoccupied mode if
RH Control
is set to
Enable
.
There is a fixed hysteresis of 5%rh for return to normal.
D:
R:
100%rh
45 to 100%rh
Service Configuration
Navigation:
i-Vu® / Field Assistant:
Properties
>
Control Program
>
Configuration
>
Service Configuration
Point Name/Description
Range
Control Point
– Defines whether the control monitors and uses
Leaving Water Temp
or
Entering Water Temp
to control this equipment.
D:
R:
Leaving Water Temp
Leaving Water Temp
Entering Water Temp
Minimum # of Chillers to Run
– The least number of chillers you can run at the same
time.
D:
R:
1
1 to 8