User guide

Recirculating coolers
3
Table of Contents
1. Intended use ............................................................................................... 4
1.1. Description ......................................................................................... 4
2. Operator responsibility – Safety instructions .............................................. 4
2.1. Disposal .............................................................................................. 6
2.2. EC Conformity .................................................................................... 7
2.3. Warranty conditions ............................................................................ 7
2.4. Technical specifications ..................................................................... 8
2.5. Cooling water connection ................................................................. 11
3. Safety notes for the user .......................................................................... 12
3.1. Explanation of safety notes .............................................................. 12
3.2. Explanation of other notes ................................................................ 12
3.3. Safety instructions ............................................................................ 12
4. Operating controls and functional elements ............................................. 14
5. Operation .................................................................................................. 17
5.1. Preparations ..................................................................................... 17
5.2. Return flow safety device ................................................................. 18
5.3. Bath fluids ......................................................................................... 19
5.4. Tubing ............................................................................................... 19
5.5. Power connection ............................................................................. 20
5.6. Filling ................................................................................................ 20
5.7. Draining ............................................................................................ 21
6. Manual operation ..................................................................................... 22
6.1. Switching on ..................................................................................... 22
6.2. Start .................................................................................................. 22
6.2.1. Automatic / non-automatic start mode.......................................... 23
6.3. Setting the setpoint temperatures .................................................... 24
6.3.1. Setting the temperature ................................................................ 24
6.3.2. Setting the control ratio for feed/return flow temperature ............. 25
6.3.3. Setting the safety temperatures ................................................... 26
6.3.4. Low liquid level protection ............................................................ 26
6.4. PID control parameters .................................................................... 27
7. Trouble shooting guide ............................................................................. 29
7.1. Other error messages ...................................................................... 30
8. Electrical connections .............................................................................. 30
9. Remote control ......................................................................................... 32
9.1. Communication with a PC or data system ....................................... 32
9.2. List of commands ............................................................................. 33
9.3. Status messages .............................................................................. 34
9.4. Error messages ................................................................................ 34
10. Menu functions ......................................................................................... 35
10.1. Selecting/exiting the configuration level ........................................... 35
10.2. Setting the parameters ..................................................................... 35
10.3. Adjustable parameters ..................................................................... 36
11. Cleaning / repairing the unit ..................................................................... 37