Service Information; Test Procedures; Replaceable Parts List; Network Connection Plug - McQuay MicroTech II Installation And Maintenance Manual

Service Information

Test Procedures

If you can control the unit from its keypad, but you are unable to communicate with it via the
network:
•
•
•
•
If the MicroTech II Chiller LonWorks Communications Module still does not respond, replace the
communications module.

Replaceable Parts List

Network Connection Plug

Generic Replacement Parts
If you lose this terminal block you can replace it with a standard block from a manufacturer. The list
below contains manufacturers part numbers for equivalent parts.
Manufacturer
Phoenix Contact
Altech Corp

Replacement Kit

Component
Kit, Chiller
13600 Industrial Park Boulevard, Minneapolis, MN 55441 USA (800) 432-1342, www.mcquay.com
Check the network wiring
Check that the Control Source setpoint is set to Local. See Unit Setup for Network Control on
page 11.
Check that the Protocol setpoint is set to LonWorks. See Unit Setup for Network Control on page
11.
Check addressing
!
Activate the Service Pin on the communications module to send the service message to the
network.
!
The service-pin message contains the Neuron ID and the program code identification of the
node.
Telephone
(800) 888-7388
(908) 806-9400
Description
Installation Kit for LonMark Communications Module
Order Number
17 57 02 2
37.003
Part No.
350147401