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Precision AS T 140
NANO Precision AS T 140 Manuals
Manuals and User Guides for NANO Precision AS T 140. We have
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NANO Precision AS T 140 manual available for free PDF download: Operating And Maintenance Manual
NANO Precision AS T 140 Operating And Maintenance Manual (92 pages)
Brand:
NANO
| Category:
Chiller
| Size: 8.02 MB
Table of Contents
User's Quick Guide
3
Unit Start/Stop
3
Buttons
3
Changing the Set-Point
4
Alarms
4
Table of Contents
5
Contents
5
Installation
7
Foreword
7
Symbols
7
Installation
8
Inspection
8
Location
8
Hydraulic Connections
8
Freeze Protection
12
Electrical Connections
13
Safety
14
General
14
General Precautions
15
Precautions During Lifting and Transport
15
Precautions to be Adopted During Operation
15
Precautions for Maintenance and Repair
15
Refrigerants
17
General Information
18
How to Interpret the Model
18
How to Interpret the Codes
18
Data Plate
18
Performance Data
19
Noise
19
How to Interpret the Alphanumeric String
19
Description
20
Operating Principle
20
Components
20
Compressors
20
Condensers
21
Fans
21
Evaporator
21
Heat Recovery and Desuperheater
22
Hydraulic System (Optional)
22
Cabinet
22
Protection Rating
22
Electrical Circuit
22
Overall Dimensions
22
Functions and Components of the Unit
23
Automatic Restart
23
Set-Point Management
23
Fixed Set-Point
23
Compensated Set-Point
23
Dual Set-Point
24
Time Band Variable Set-Point
24
Variable Set-Point from Digital Input (Multifunction)
24
Temperature Control
24
Compressors Management
25
Unloading Procedure
25
Compressor Protection
25
Fans Management
26
Step Control
26
Variable Speed Control
27
Water Pump Management
27
Automatic/Manual Rotation
27
6.7 Recovery Management
28
Supervision System
28
Modularity
28
Electronic Thermostatic Valve (Optional)
28
High Pressure Switches (HP)
29
Temperature and Pressure Transducers
30
6 . 1 2 . 1 P R es Sur E Tr Ans Duc er S
30
Water Differential Pressure Switch
30
Level Sensor
31
Forced Ventilation of the Electrical Board
32
Function (Optional)
32
Antifreeze Control
32
Electric Panel Heater (Optional)
32
Antifreeze Heater and Tank Heater (Optional)
33
Remote Terminal (if Present)
33
Procedure to Show and Modify the Address of a Display
34
Start - up
35
Electronic Controller
37
Interface
37
Graphic Conventions
38
Navigation
39
Main Mask
40
Other Masks
41
Icons
42
Main Icons
42
Menu Stage Icons
42
Using Stages and Masks
43
Switching on and off the Unit
44
Setting the Language
44
Setting Date and Time
45
Changing the Set-Point
46
Changing the Differential
46
Masks
47
Set-Point Stage
47
I/O Stage Software
48
User Stage
50
Menu Stage
51
Alarm Stage
53
Operation and Maintenance
54
Operation
54
Maintenance
54
Access to the Unit's Internal Compartments
54
Planning of Checks and Maintenance Operations
55
Troubleshooting
56
Alarm Signals
57
Appendix
60
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