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Installing the MPC Open XP
MPC Open XP
MPC Open XP IO48/816
Carrier Proprietary and Confidential
CARRIER CORPORATION ©2017
Installation and Start-up Guide
All rights reserved
20
ZS sensors
You can wire up to 15 ZS sensors to the MPC Open XP's
Rnet
port. ZS sensors can share the Rnet with the devices
listed above.
NOTES
•
A control program can use no more than 5 ZS sensors, so you must use multiple control programs if your
Rnet network has more than 5 sensors.
•
The ZS CO2 model uses 190 mA during sample period. Use auxiliary 12 Vdc, unless it is the only device on
the Rnet port.
SPT sensors
You can wire SPT sensors to the MPC Open XP's
Rnet
port. An Rnet can consist of any of the following
combinations of devices wired in a daisy-chain or star configuration:
•
1 SPT Plus, SPT Pro, or SPT Pro-F
•
1–4 SPT Standards
•
1–4 SPT Standards, and 1 SPT Plus, SPT Pro, or SPT Pro-F
NOTE
SPT sensors cannot share the Rnet with other devices.
Equipment Touch
You can wire an Equipment Touch to the MPC Open XP's Rnet port to view or change the controller's property
values, schedule equipment, view trends and alarms, and more, without having to access the system's server. The
Rnet can have one Equipment Touch, one Wireless Adapter, and up to 15 ZS sensors. SPT sensors cannot share
the Rnet with an Equipment Touch.
CAUTIONS
•
Equipment Touch requires 24 Vac and cannot be powered by Rnet's 12 Vdc. For more details, see the
Equipment Touch Installation and Setup Guide
.
If you exceed 200 mA, then one or more devices need an auxiliary 12 Vdc power supply.
•
Verify that the
Enhanced Access
DIP switch is set to
Off
.
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