
Installing the MPC Open XP
MPC Open XP
MPC Open XPIO48/816
CARRIER CORPORATION ©2019
Installation and Start-up Guide
All rights reserved
20
Rnet wiring specifications
NOTE
Use the specified type of wire and cable for maximum signal integrity.
Description
4 conductor, shielded or unshielded, CMP, plenum rated cable
Conductor
22 AWG (7x0096) bare copper if Rnet has only sensors
Maximum length
500 feet (152 meters)
Insulation
Low-smoke PVC (or equivalent)
Color Code
Black, white, green, red
Shielding
If shielded, Aluminum/Mylar shield (100% coverage) with TC drain wire, terminated
at controller
UL temperature rating
32–167°F (0–75°C)
Voltage
300 Vac, power limited
Listing
UL: NEC CL2P, or better
To wire ZS sensors to the controller
ZS Sensors are thermistor-based temperature sensors that may optionally sense humidity, CO
2
, or VOC. ZS
Sensors are wired to the Rnet port on i-Vu® Open controllers. You can use the following ZS sensors:
•
ZS Standard
•
ZS Plus
•
ZS Pro
•
ZS Pro-F
NOTES
•
The ZS CO2 model uses 190 mA during sample period. Use auxiliary 12 Vdc, unless it is the only device on
the Rnet port.
•
A control program can use no more than 5 ZS Sensors
•
SPT sensors cannot share the Rnet with other devices.
•
For detailed instructions, see the
ZS Sensor Installation Guide
.
1
Remove power from the MPC Open XP.