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McQuay MDS 180B

McQuay MDS 180B
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Service Manual
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Engineered for flexibility and performance
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Table of Contents

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McQuay MDS 180B Specifications

General IconGeneral
BrandMcQuay
ModelMDS 180B
CategoryCompressor
LanguageEnglish

Summary

System and Control

PCB and Wiring

MDS Outdoor Unit PCB

Identifies components and connections on the MDS outdoor unit PCBs (MDOM & MDS-M).

MDS Indoor Unit PCB

Identifies components and connections on the MDS indoor unit PCBs (MC200-C & MC201-C).

MDS System Wiring

Details wiring connections between outdoor and indoor units, and among outdoor units.

Commissioning Software

Setup of Smart Commander

Guides users through setting up the communication port for Smart Commander.

Commissioning Procedures

Add in additional refrigerant

Guidance on adding refrigerant based on system design and calculations.

Confirm Indoor Dipswitch Setting

Verifying the dipswitch settings on indoor units for communication and configuration.

Confirm Outdoor Dipswitch Setting

Checking and setting dipswitches on outdoor units for capacity and model.

Monitor Outdoor Parameter

Monitoring outdoor unit parameters to guide refrigerant charging.

Troubleshooting Guide

Locating Error Code

Describes how error codes are displayed on indoor and outdoor units.

Error Code for Decorative Type Indoor

Lists and explains error codes for decorative type indoor units.

Indoor Error Code for Wired Controller MC301

Details indoor error codes displayed via the MC301 wired controller.

Outdoor Error Code for MDOM PCB

Lists and explains error codes specific to the MDOM PCB.

Outdoor Error Code for MDS-M PCB

Lists and explains error codes specific to the MDS-M PCB.

Troubleshooting Flow Chart

Flow charts to diagnose common system malfunctions like sensor failures.

Appendix

Error Code for Phase Protector

Details error codes and LED indicators for the phase protector.

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