Installing an MPC Open XPIO expander
Carrier® ChillerVu™
(OPN-PSM-MPCXPE)
Carrier Proprietary and Confidential
CARRIER CORPORATION ©2017
Installation and Start-up Guide
15
All rights reserved
To set the expander's address
You must give the expanders an address that is unique on the expander network.
1
If wired for power, turn off the expander's power and the attached controller's power.
2
Set the expander's address on the rotary switch.
EXAMPLE
If the controller’s address is 2, point the arrow on the switch to 2.
NOTE
The Carrier® ChillerVu™ can have a maximum of 6 expanders. You MUST address the expanders as 1
through 6. Higher addresses will not work.
3
Turn on the expander's power and then turn on the attached controller's power. The controller reads the
powered expander's address each time you turn on the controller.
CAUTION
The first time the controller communicates with an expander, it triggers a software download. This
may occur if the expander(s) are blank (not a normal condition) and in cases where the controller’s driver has
been updated. During that time, the red
Error
LED and the green
Run
LED on the expander(s) flash in sequence.
This process may take several minutes to complete. Do not disconnect power or communications wiring during
this download.
