NANO Precision AS T 120 Manuals

Manuals and User Guides for NANO Precision AS T 120. We have 1 NANO Precision AS T 120 manual available for free PDF download: Operating And Maintenance Manual

NANO Precision AS T 120 Operating And Maintenance Manual

NANO Precision AS T 120 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
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
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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