Carrier Fan Coil User Manual

Appendix A: Fan Coil Network Points List
Fan Coil CARRIER CORPORATION ©2020
Integration Guide All rights reserved
29
BACnet System
Points Display
Name
Valid Range
BACnet/
Modbus
/N2 Default Value*
LonWorks
Default Value*
Recommended Write
Rrefresh
Time
(min/max)
3 = BAS On/Off (third
party control)*
4 = Remote Occ Input
through BACnet)
BAS On/Off*
(Occupancy)
Occupancy control
configuration ust be
set for 3 = BAS
On/Off
1=Inactive
2=Occupied
3=Unoccupied
Inactive (1)
Inactive (1)
On change of state
* Modbus, N2, and LonWorks default values only apply to multi-protocol controllers.
† Points do not apply to multi-protocol controllers.
Reading System Points
To verify that the system point is being written to within the refresh time specified (value varies by point), the i-
Vu® Open controller clears any value that is written, once it has been processed by the controller and returned
the system point to its default value. Therefore, a BAS should never read back the system point's value to confirm
the commanded value was successfully received. To confirm a write, refer to the table below for the corresponding
control point that should be read.
NOTE A confirming “read” should take place at least 30 seconds following the “write” to verify that the write has
been processed by the controller.
Commanded Points
Control Points
Display Name
Type /
Instance
Object Name
Display Name
Type /
Instance
Object Name
System Space
Temperature
av:1902
system_spt
Space Temperature
- Prime Variable
av:2007
space_temp
System Space
RH
av:1904
system_rh
Space Relative
Humidity
av:1011
space_rh
System Space
AQ
av:1903
system_iaq
Indoor Air Quality
CO2 (ppm)
av:1009
iaq
System OA
Temperature
av:1901
system_oat
Outdoor Air
Temperature
av:1003
oa_temp
[OA] Enthalpy
(BACnet)
bv:1901
oae
[OA] Enthalpy
Status
bv:1002
enthalpy_status
System Outdoor
AQ
av:1908
system_oaq
Outdoor Air Quality
CO2 (ppm)
av:1012
oaq
System Water
Temperature
av:1905
system_water_t
emp
Changeover Mode
av:1014
chgovr_mode
†System
Fire/Smoke
bv:1907
fire_shutdown
Fire/Smoke
Shutdown
bv:7007
fire_alarm

Carrier Fan Coil Specifications

General

Control Type	Electronic
Input Voltage	24 VAC
Display	LCD
Communication Protocol	BACnet MS/TP
Mounting	Wall Mount
Operating Temperature	32°F to 122°F (0°C to 50°C)
Humidity Range	non-condensing