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AGS 230A' AGS 230B
McQuay AGS 230A' AGS 230B User Manual
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Operation M
anual
OM
A
GSB
-5
Group:
Chiller
Part Number:
3313
73201
Date:
June 2005
Supersedes: O
M
A
GSB-4
GeneSys
™
Air-Cooled Screw
C
ompressor Chiller
A
G
S 230A
/B through A
GS 475
A
/B, 60 Hertz
A
G
S 206A
/B through A
GS 41
1A/B, 50 Hertz
Sof
tware V
ers
ion A
GSU30101H
2
Table of Contents
Default Chapter
2
Table of Contents
2
Microtech II™ Features
4
General Description
5
Component Description
6
Unit and Circuit Controller Description
6
Control Operation
10
Circuit Controller
10
Inputs/Outputs
10
Setpoints
11
Compressor Control
15
Condenser Fan Control
19
EXV Control
21
Evaporator Oil Return Line Control
23
Oil Heater Control
23
Interstage Injection
23
Unit Controller
24
Inputs/Outputs
24
Setpoints
24
Unit Enable
26
Unit Mode Selection
27
Evaporator Pump State Control
30
Evaporator Heater Control
30
Leaving Water Temperature (LWT) Reset
30
Alarms and Events
33
Alarm and Event Logging
35
Using the Controller
37
Security
39
Entering Passwords
39
Editing Setpoints
39
Clearing Alarms
39
Unit Controller Menus
40
Screen Definitions
41
SET Screen Definitions
43
Circuit Controller Menus
47
Screen Definitions
47
Sequence of Operation
52
Start-Up and Shutdown
54
Expansion Valve Operation
55
Extended (Seasonal) Shutdown
57
Evaporator Freeze Protection
58
Operating Limits
59
Refrigerant Charging
60
Bas Interface
63
Field Wiring Diagram
64
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McQuay AGS 230A' AGS 230B Specifications
General
Brand
McQuay
Model
AGS 230A' AGS 230B
Category
Air Compressor
Language
English
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