McQuay AGR 100AS manuals

Mcquay AGR 100AS Installation Manual (100 pages)

Brand: Mcquay | Category: Small kitchen appliances | Size: 5.20 MB |

English

Table of contents

AGR 070AS through 100AS

1

60 Hertz, English and Metric

1

Global Chiller Line

1

Table of Contents

2

Introduction

3

Installation

4

Location

5

Service Access and Clearances

5

DISCHARGE

6

Vibration Isolators

7

Water Piping

8

Flow Switch

9

Water Connections

9

Refrigerant Charge

9

Glycol Solutions

10

Figure 8, Pressure Drop Curve

12

Physical Data

13

Table 8, AGR 090A – AGR 100A

14

Electrical Data

15

Voltage Limitations:

19

See legend on page 34

32

Dimensional Data

36

2 REFRIGERANT CIRCUITS

37

AGR Unit Start-Up

38

Start-Up

39

Shutdown

39

AGR Unit Operation

40

Hot Gas Bypass (Optional)

41

Filter Driers

41

UNT Controller Operation

43

115 VAC power wiring

44

Analog input signals

44

Digital input signals

44

Digital output signals

44

Controller Inputs /Outputs

45

Digital Inputs

46

Relay Outputs

46

Reset Options

46

Outside Air Reset

46

(OALL=OAHL - OARB)

47

(RWLL=RWHL - RWRB)

47

ZTLL ZTHL

48

Remote Stop/Start

49

Unoccupied Mode

49

Soft Start

49

Compressor Staging

49

Pumpdown Control

49

Freezestat Control

50

Starting Timers

50

Head Pressure Control

51

Circuit Alarm Conditions

51

System Alarm Conditions

51

ZONE TERMINAL (optional)

52

INSTALLING THE PLASTIC LABELS

53

CONNECTING THE ZONE TERMINAL

54

ALARM STATUS

54

Zone Terminal Glossary

55

General Description

58

Optional Sensor Packages

58

Interlock wiring

59

Modem kit

59

Optional sensors

59

Field Wiring

59

PC Connection

61

Telephone line

61

Software Identification

61

Soft Loading

64

Manual Operation

64

Safety Systems

65

Sequence of Operation

66

Start - Up

67

Low Ambient Start

67

Pumpdown

67

Start-Up and Shutdown

68

Keypad / Display

69

Display Format

70

MicroTech Menu Structure

70

Password Information

70

Keypad Key Functions

71

Menu Descriptions

72

Control Menus

73

Lvg Evap = 21 + 2 + 1.5

74

Lvg Evap = 24.5

74

Alarm Menus

76

Table 43, MENU 20 Schedule

81

Table 45, MENU 22 Alarm Spts

81

Table 46, MENU 22 Alarm Spts

81

Table 47, MENU 23 Misc Setup

82

Hex switches

83

Communication Ports

85

Output Board

85

Test Procedures

86

9 8 7 6 5 4 3 2 1

88

Troubleshooting Analog Inputs

89

Troubleshooting Output Boards

89

Contact Chatter

91

Unit Maintenance

93

Unit Service

95

Refrigerant Charging

96

Evaporator

96

AGR Troubleshooting Chart

98

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