McQuay WMF series User Manual

Installation & Maintenance Data IM 447-9
Group: WSHP
Part Number: 107225603
Date: June 2006
Installation & Maintenance Data
Console Water Source Heat Pump
Models WDA, WDB, WDD, WDE, WDF, WDG, WDH, WDS, WLA, WLB, WLC, WLL
WMA, WMB, WMC, WMD, WME, WMF, WMG, WMH, WMU, WMK, WML
Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Checking for Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3,4
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Cabinet Power Connections . . . . . . . . . . . . . . . . . . . . . . . 5
Water Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cleaning & Flushing System . . . . . . . . . . . . . . . . . . . . . . . 7
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Unit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Wiring Diagrams – Mark IV/AC-Units . . . . . . . . . . . . . . 9,10
Control Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Thermostats – Mark IV/AC-Units . . . . . . . . . . . . . . . . . . 12
Pump Restart Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
MicroTech Control Units . . . . . . . . . . . . . . . . . . . . . . . 14,15
Field Installed Options . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Optional Outside Air Damper . . . . . . . . . . . . . . . . . . . . . 18
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18,19
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Contents
©2006 McQuay International
®

McQuay WMF series Specifications

General

Brand	McQuay
Model	WMF series
Category	Heat Pump
Language	English

Summary

Model Nomenclature

Product Nomenclature Explained

Product Identifier Definitions

Unit Receipt and Installation

Damage Inspection and Handling

Steps for inspecting the unit upon receipt for visible damage and handling claims.

Installation Requirements and Location

Physical Installation Procedure

Step-by-step instructions for physically installing the unit, including securing it.

Electrical Connections

Standard Electrical Wiring

Details the factory-provided junction box and field wiring for standard electrical connections.

Cord and Plug Wiring

Explains how to connect units using a cord and plug, including optional disconnect switches.

Cabinet Power Connection

Specific instructions for field-installing power connections for the unit cabinet.

Water Connections and Piping

Unit Water Connections

Details unit piping, hose kits, shutoff valves, and condensate hose connection.

Piping and System Preparation

Piping Configuration and Materials

System Cleaning and Flushing

Instructions for cleaning, flushing, filling, and preparing the water system before operation.

System Information

Operating Limits

Electrical Data and Specifications

Unit Operation Modes and Controls

Typical Wiring Diagrams

60 Hz Mark IV MCO Boilerless Constant Fan Wiring

Illustrates wiring connections for a 60 Hz Mark IV MCO unit with boilerless fan.

50 Hz Mark IV MCO Boilerless Constant Fan Wiring

Illustrates wiring connections for a 50 Hz Mark IV MCO unit with boilerless fan.

Thermostat Connection Diagrams

7-Day Programmable Thermostat Wiring

Non-Programmable Thermostat Wiring

MicroTech Network Control System

MicroTech System Overview

MicroTech Unit Control Features

Troubleshooting Common Issues

Unit Start-up and Operation Failures

Addresses issues where the unit or compressor does not run, or compressor cycles short.

Performance and System Problems

Covers insufficient cooling/heating, water flow, dripping, and noisy operation.

Maintenance

Routine Maintenance Schedule

Performance Monitoring and Lockouts