Lauda RA 12 User Manual

4 / 52 Alpha 7/2022
Table of content
Prefixed safety notes ..................................................................................................................................................................... 3
1 SAFETY NOTES............................................................................................................................................................................ 6
1.1 GENERAL SAFETY NOTES ....................................................................................................................................................... 6
1.2 OTHER SAFETY NOTES ........................................................................................................................................................... 7
2 BRIEF OPERATING INSTRUCTIONS .................................................................................................................................... 8
3 CONTROL AND FUNCTIONAL ELEMENTS .................................................................................................................... 10
4 UNIT DESCRIPTION ............................................................................................................................................................... 15
4.1 ENVIRONMENTAL CONDITIONS ......................................................................................................................................... 15
4.2 TYPES OF UNIT ..................................................................................................................................................................... 15
4.3 BATHS .................................................................................................................................................................................. 15
4.4 PUMP ................................................................................................................................................................................... 15
4.5 MATERIALS ........................................................................................................................................................................... 16
4.6 TEMPERATURE INDICATION, CONTROL AND SAFETY CIRCUIT .......................................................................................... 16
4.7 REFRIGERATION SYSTEM .................................................................................................................................................... 16
4.8 STANDARD ACCESSORIES................................................................................................................................................... 16
5 UNPACKING ............................................................................................................................................................................. 17
6 PREPARATIONS ...................................................................................................................................................................... 18
6.1 ASSEMBLY AND SETTING UP............................................................................................................................................... 18
6.2 FILLING AND EMPTYING...................................................................................................................................................... 21
6.3 HEAT TRANSFER LIQUIDS AND HOSES ............................................................................................................................... 22
6.4 CONNECTION OF EXTERNAL CIRCUITS .............................................................................................................................. 24
7 STARTING UP ........................................................................................................................................................................... 25
7.1 CONNECTION TO THE SUPPLY ........................................................................................................................................... 25
7.2 SWITCHING ON .................................................................................................................................................................... 25
7.3 GENERAL KEY FUNCTIONS AND PILOT LAMPS ................................................................................................................... 26
7.4 TEMPERATURE SETPOINT SETTING SET............................................................................................................................. 27
7.5 AUTOMATIC SHUTDOWN TIMER ASD ............................................................................................................................... 27
7.6 DEFINING TEMPERATURE LIMITS HI AND LO ................................................................................................................... 28
7.7 REFRIGERATION UNIT SUBMENU COOL ............................................................................................................................ 28
7.8 OFFSET FOR THE INTERNAL TEMPERATURE PROBE CAL ................................................................................................ 29
7.9 RESTORING WORKS SETTINGS DEF ................................................................................................................................... 29
7.10 STANDBY STBY ................................................................................................................................................................... 30
7.11 SAFETY FUNCTIONS ............................................................................................................................................................ 30
7.11.1 Safety functions and removal .................................................................................................................................... 30
7.11.2 Overtemperature and low level protection .............................................................................................................. 31
7.11.3 Overtemperature and low level protection testing .................................................................................................. 31

Lauda RA 12 Specifications

General

Brand	Lauda
Model	RA 12
Category	Thermostat
Language	English