McQuay ACZ 055A manuals

Mcquay ACZ 055A Installation Manual (138 pages)

Brand: Mcquay | Category: Small kitchen appliances | Size: 5.81 MB |

English

Table of contents

ACZ 030B through 155B

1

AGZ 026BM through 130BM

1

60 Hertz, R-22

1

Table of Contents

2

Installation

4

Location

5

Restricted Air Flow

6

General

6

Chiller 1 Chiller 2 Chiller 3

9

Case 4, Open Screening Walls

10

Sound Isolation

12

Vibration Isolators

12

Water Piping (Model AGZ-BM)

14

THERMOWELL

15

Flow Switch (Model AGZ-BM)

16

Water Connections

16

Variable Speed Pumping

17

Glycol Solutions

17

Altitude Correction Factors

18

Fouling Factor

19

ACZ Compressor Staging

21

Rib Attachment (First)

24

Top Panel Attachment (Last)

24

Top Cover 330409401 2

25

Front Panel 330409501 3

25

Physical Data

26

NOTES:

27

(Up to 105°F)

32

Electrical Data High Ambient

41

(106°F to 125°F)

42

(106°F to 125°F

45

NOTE: ALL FIELD WIRING TO BE

48

INSTALLED AS NEC CLASS 1

48

WIRING SYSTEM WITH CONDUCTOR

48

RATED 600 VOLTS

48

AGZ 026BM – 070BM

50

AGZ 075BM – 090BM

51

REFRIGERANT CONNECTIONS

52

Remote Evaporators

53

Optional Features

54

Electrical

56

AGZ MicroTech II¥

57

¥ Controller

57

Overview

58

AGZ-B Inputs/Outputs

58

Table 39, Digital Inputs

59

Table 40, Digital Outputs

59

Setpoints

60

Shutdown Alarms

61

Logging

62

Control Logic

63

Chilled Water Pump Control

64

Compressor Control

64

Leaving Water Reset

66

Pumpdown

68

Fantrol

68

RIGHT ARROW KEY

80

Screen Definitions:

81

View Menus

81

ACZ Microtech II

91

 Controller

91

ACZ-B Inputs/Outputs

92

Table 49, Digital Inputs

93

Table 50, Digital Outputs

93

Automatic Adjusted Ranges

95

Unit Mode Selection

97

Compressor Start/Stop Timing

98

Condenser Fan Control

100

What is an Inverter?

102

Inverter Output to the Motor

102

Inverter Front Panel Keypad

103

Key and Indicator Legend

103

Keypad Navigational Map

104

Troubleshooting Tips

105

Symptom

105

Condition

105

Probable Cause Solution

105

Fault Detection and Clearing

106

Frequency

108

Month Year

108

Inspection Method Criteria

108

Important Messages

109

Introduction

109

Unit identification

109

Standard Functions

110

Fine Tuning Functions

111

Getting Started

112

VIEW UNIT STATUS

113

Unit = COOL

113

Compr. #1/#2=OFF/OFF

113

Evap Pump = RUN

113

Screen Definitions

115

Start-up

123

Shutdown

124

Water Piping Checkout

124

Refrigerant Piping Checkout

124

Operation

125

Crankcase Heaters

127

Unit Maintenance

128

Service

130

Refrigerant Charging

131

Warranty Statement

132

Mcquay ACZ 055A Installation Manual (106 pages)

Brand: Mcquay | Category: Small kitchen appliances | Size: 2.84 MB |

English

Table of contents

DX Evaporators, CDE

1

Table of Contents

2

Introduction

3

Installation

4

Location

5

Service Access

5

6 IOMM ACZ/AGZ

6

Vibration Isolators

7

Water Piping

8

Flow Switch

9

Glycol Solutions

10

IOMM ACZ/AGZ 11

11

12 IOMM ACZ/AGZ

12

Refrigerant Piping

13

14 IOMM ACZ/AGZ

14

IOMM ACZ/AGZ 15

15

Liquid Lines

16

Liquid Line Components

17

18 IOMM ACZ/AGZ

18

Physical Data

19

ACZ Condensing Units

20

Table 10, ACZ 045A - 055A

21

Electrical Data

22

Electrical Data AGZ-AM

23

Electrical Data ACZ

23

24 IOMM ACZ/AGZ

24

Electrical Notes

25

Electrical Legend

26

Wiring Diagrams

27

28 IOMM ACZ/AGZ

28

IOMM ACZ/AGZ 29

29

30 IOMM ACZ/AGZ

30

IOMM ACZ/AGZ 31

31

32 IOMM ACZ/AGZ

32

IOMM ACZ/AGZ 33

33

34 IOMM ACZ/AGZ

34

IOMM ACZ/AGZ 35

35

36 IOMM ACZ/AGZ

36

IOMM ACZ/AGZ 37

37

Dimensional Data

38

IOMM ACZ/AGZ 39

39

Pre Start-up

40

Start-Up

40

Shutdown

40

Water Piping Checkout

41

Refrigerant Piping Checkout

41

Electrical Check Out

43

Operation

44

Hot Gas Bypass (Optional)

45

Filter Driers

46

System Adjustment

46

Thermostatic Expansion Valve

46

Crankcase Heaters

47

Water Cooler

47

Global UNT Controller, AGZ-AM

48

IOMM ACZ/AGZ 49

49

Controller Inputs /Outputs

50

Digital Inputs

51

Relay Outputs

51

Reset Options

51

Outside Air Reset

51

RWLL RWHL

52

Additional UNT Features

53

Unoccupied Mode

54

Soft Start

54

Compressor Staging

54

Pumpdown Control

54

Freezestat Control

55

Starting Timers

55

Head Pressure Control

55

Circuit Alarm Conditions

55

ZONE TERMINAL (optional)

56

OPERATING MODES

57

INSTALLING THE PLASTIC LABELS

58

IOMM ACZ/AGZ 59

59

Zone Terminal Glossary

60

IOMM ACZ/AGZ 61

61

62 IOMM ACZ/AGZ

62

MicroTech Controller, AGZ-AM

63

Remote 4-20 milliamp signals

64

Interlock wiring

64

Modem kit

64

Lead-Lag

64

IOMM ACZ/AGZ 65

65

66 IOMM ACZ/AGZ

66

Soft Loading

69

Manual Operation

70

Safety Systems

71

Sequence of Operation

72

Start - Up

73

Low Ambient Start

73

Pumpdown

73

Start-Up and Shutdown

74

Keypad / Display

75

Display Format

76

MicroTech Menu Structure

76

Password Information

76

IOMM ACZ/AGZ 77

77

Keypad Key Functions

78

Menu Descriptions

79

Control Menus

80

82 IOMM ACZ/AGZ

82

Alarm Menus

83

84 IOMM ACZ/AGZ

84

IOMM ACZ/AGZ 85

85

86 IOMM ACZ/AGZ

86

IOMM ACZ/AGZ 87

87

Table 47, MENU 20 Schedule

88

Table 49, MENU 22 Alarm Spts

88

Table 50, MENU 22 Alarm Spts

88

Table 51, MENU 23 Misc Setup

89

Hex switches

90

Keypad/LCD Display Connection

91

Hex Switches

91

* Hex switch setting 01 shown

92

Test Procedures

93

94 IOMM ACZ/AGZ

94

IOMM ACZ/AGZ 95

95

Troubleshooting Analog Inputs

96

Troubleshooting Output Boards

96

IOMM ACZ/AGZ 97

97

Contact Chatter

98

Output Board

99

Unit Maintenance

100

IOMM ACZ/AGZ 101

101

Liquid Line Solenoid Valve

102

Evaporator

103

Refrigerant Charging

103

104 IOMM ACZ/AGZ

104

Troubleshooting Chart

105

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