User Manuals: McQuay ACZ 050A Scroll Condensing Units

Manuals and User Guides for McQuay ACZ 050A Scroll Condensing Units. We have 1 McQuay ACZ 050A Scroll Condensing Units manual available for free PDF download: Installation, Operation And Maintenance Manual

McQuay ACZ 050A Installation, Operation And Maintenance Manual

McQuay ACZ 050A Installation, Operation And Maintenance Manual (104 pages)

AIR-COOLED, SCROLL COMPRESSOR, SPLIT SYSTEMS

Brand: McQuay | Category: Chiller | Size: 1 MB

Table of Contents

Table of Contents
2
Introduction

3
- Inspection
  3
Installation

4
- Handling
  4
- Location
  5
- Service Access
  5
- Vibration Isolators
  7
- Water Piping
  8
- Flow Switch
  9
- Glycol Solutions
  10
- Evaporator Flow and Pressure Drop
  12
- Refrigerant Piping
  13
- Liquid Lines
  16
Physical Data

18
Electrical Data

21
- Field Wiring
  21
- Electrical Data AGZ-AM
  22
- Electrical Data ACZ
  22
- Electrical Notes
  23
- Wiring Diagrams
  25
Dimensional Data

36
Startup

38
- Pre Start-Up
  38
- Shutdown
  38
- Water Piping Checkout
  39
- Refrigerant Piping Checkout
  39
- Refrigerant Charging
  40
- Electrical Check out
  41
Operation

42
- Sequence of Operation
  42
- Hot Gas Bypass (Optional)
  43
- Filter Driers
  44
- System Adjustment
  44
- Liquid Sightglass and Moisture Indicator
  44
- Thermostatic Expansion Valve
  44
- Crankcase Heaters
  45
- Water Cooler
  45
Global UNT Controller, AGZ-AM

46
- General Description
  46
- Optional Sensors
  46
- Controller Inputs /Outputs
  48
- Additional UNT Features
  51
- Soft Start
  52
- Alarms
  53
- ZONE TERMINAL (Optional)
  54
- Operating Modes
  55
- Zone Terminal Glossary
  58
- Global UNT Controller Troubleshooting Chart
  60
Microtech Controller, AGZ-AM

62
- General Description
  62
- Optional Sensor Packages
  62
- Installation
  62
  - Interlock Wiring
    63
  - Chilled Water Flow Switch
    64
  - Manual Operation
    69
- Sequence of Operation
  71
- Start-Up and Shutdown
  73
- Keypad / Display
  74
- Menu Descriptions
  77
- Trouble Analysis for the AGZ Microtech Controller
  87
- Test Procedures
  91
Unit Maintenance

98
- Preventative Maintenance Schedule
  99
Service

100
- Liquid Line Solenoid Valve
  100
- Evaporator
  101
- Refrigerant Charging
  101
- Troubleshooting Chart
  103

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