AHT Cooling Systems GmbH
page 3
Table of contents
MODEL TYPES - OVERVIEW ................................................................................................................ 2
1 Safety ....................................................................................................................................... 4
General information for the manual and safety ....................................................................... 4
Limitation of liability ................................................................................................................. 4
Explanation of symbols ............................................................................................................ 4
Intended purpose ..................................................................................................................... 5
Staff requirements ................................................................................................................... 6
Personal protective equipment ................................................................................................ 6
Specific hazards ...................................................................................................................... 6
Electricity ................................................................................................................................. 6
Refrigerant circuit..................................................................................................................... 7
Flammable refrigerant ............................................................................................................. 7
Mechanical hazards ................................................................................................................. 8
Residual risks .......................................................................................................................... 9
2 Product description ................................................................................................................ 10
General information ............................................................................................................... 10
Technical data ....................................................................................................................... 10
Serial plate and serial number ............................................................................................... 10
Intended purpose ................................................................................................................... 10
3 Layout and function ............................................................................................................... 10
Automatic defrost ................................................................................................................... 11
4 Operating and display elements ............................................................................................ 11
Temperature display .............................................................................................................. 11
Operating panel and display elements .................................................................................. 11
Electronic controller AHT (SECOP) ....................................................................................... 11
Switch refrigeration function on/off ........................................................................................ 11
Setting selection .................................................................................................................... 11
Semi-automatic defrost .......................................................................................................... 12
Alarm indication and acknowledgment .................................................................................. 12
5 Transport and storage ........................................................................................................... 12
6 Unpacking .............................................................................................................................. 12
7 Setup and installation ............................................................................................................ 13
Electrical connection .............................................................................................................. 14
Electrical protection ............................................................................................................... 14
8 Commissioning ...................................................................................................................... 15
9 Operation (use) ...................................................................................................................... 15
Loading .................................................................................................................................. 16
Decommissioning and Re- commissioning ........................................................................... 16
Decommissioning .................................................................................................................. 16
Re-commissioning ................................................................................................................. 16
Faults in operation ................................................................................................................. 16
10 Maintanance .......................................................................................................................... 17
Cleaning ................................................................................................................................. 17
Basic cleaning ........................................................................................................................ 17
Cleaning steps during operation ............................................................................................ 17
Cleaning steps only with cooling function switched off (manual defrost) ............................. 18
Maintenance, service and repair ........................................................................................... 18
What to do if … ...................................................................................................................... 19
Maintenance services ............................................................................................................ 19
11 Disposal ................................................................................................................................. 19
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