Related Manuals for Lauda RA 8
Summarization of Contents
Safety notes
General safety notes
Guidelines for operating units with non-flammable liquids according to DIN EN 61010-2-010.
Other safety notes
Crucial safety precautions before operation, including checking for damage and proper connection.
Brief operating instructions
Assemble unit and add items as appropriate
Steps for assembling the unit and attaching necessary components.
Fill the unit with corresponding heat transfer liquid
Procedure for filling the bath with the correct heat transfer liquid.
Connect the unit only to a socket with a protective earth (PE) connection
Instructions for connecting the unit to a grounded power supply.
Switch the unit on with the front switch
The process of powering on the thermostat using the main switch.
Now the display shows the current bath temperature, for example
Observing the initial display reading of the bath temperature.
Control and functional elements
Temperature controller with four segment LED display
Description of the primary control unit with its LED display.
Heater active (yellow LED is lit)
Indicates the status of the heating element via an LED indicator.
Menu functions, select and Enter keys
Explains the navigation and selection keys for menu operations.
Mains switch
The main power switch for turning the unit on and off.
Screw clamp
Component used for securing the thermostat to the bath.
Tubular heater
The heating element immersed in the bath.
Temperature probe Pt100
Sensor for accurate measurement of the bath temperature.
Pump outflow with pump outflow reducer
The liquid outlet from the pump, including the reducer.
Unit description
Environmental conditions
Specifies the operating environment requirements for the thermostats.
Types of unit
Explains the product naming convention for Alpha thermostats.
Baths
Details the construction, volume, and features of the baths.
Pump
Description of the integrated centrifugal immersion pump.
Materials
Information on the high-quality materials used in unit construction.
Temperature indication, control and safety circuit
Explanation of the display, controls, and safety mechanisms.
Refrigeration system
Overview of the refrigeration system components and operation.
Standard accessories
Lists accessories that are typically supplied with the units.
Preparations
Assembly and Setting Up
Instructions for physically setting up the thermostat and its components.
Heat transfer liquids and hoses
Approved heat transfer liquids
Lists and describes approved liquids, their properties, and catalogue numbers.
Hoses
Details on tubing types, specifications, and applications for connecting hoses.
Connection of external circuits
Operation as circulation thermostat
Guidance on connecting the unit for external circulation applications.
Starting up
Connection to the supply
Instructions for connecting the unit to the main power supply.
Switching on
Procedure for powering up the thermostat and initial checks.
General key functions and pilot lamps
Explanation of button functions and status indicator lights.
Temperature setpoint setting SEL
How to set and adjust the desired temperature setpoint.
Automatic Shutdown Timer ASd
Details on configuring and using the automatic shutdown timer.
Defining temperature limits Hı and Lo
Setting upper and lower temperature limits to protect the system.
Refrigeration unit submenu Cool
Configuration options for the refrigeration system modes.
Offset for the internal temperature probe CAL
Procedure for calibrating the internal temperature probe.
Restoring works settings DEF
How to reset unit settings to factory defaults.
Standby 5669
Explanation of the standby mode and how to exit it.
Safety functions
Overview of safety mechanisms and how to address alarms/errors.
Overtemperature and low level protection
Details on the built-in safety features against overheating and low liquid levels.
Overtemperature and low level protection testing
Procedure for testing the overtemperature and low-level protection systems.
Unlock the overtemperature protection
Steps to reset the overtemperature protection after it has been triggered.
Pump-motor supervision: Overload
Information on monitoring pump motor overload and blockages.
Fault list "Alarms and Errors"
A comprehensive list of error codes and their meanings for troubleshooting.
Maintenance
Cleaning
Instructions for cleaning the thermostat unit safely.
Maintenance
General guidelines and precautions for performing maintenance.
Service intervals
Recommended schedule for servicing different parts of the unit.
Testing the heat transfer liquid
Procedure for testing the condition and usability of the heat transfer liquid.
Maintenance of the refrigeration unit
Specific maintenance tasks for the refrigeration system's condenser.
Note on repair
Important advice regarding sending units for repair and packaging.
Disposal information
Guidelines for the environmentally responsible disposal of the unit.
Disposal of refrigerant
Specific instructions for the disposal of refrigerants by qualified personnel.
Disposal of packaging
Instructions for disposing of product packaging materials.
Ordering spares and rating label
How to order replacement parts and locate the unit's rating label.
Accessories
Accessories for Class Alpha thermostats
Listing of optional accessories available for Alpha thermostats.
Technical data and diagrams
Common technical data of Alpha Thermostats
General technical specifications applicable to all Alpha thermostat models.
Alpha Immersion Thermostat
Specific technical data for the Alpha Immersion Thermostat series.
Alpha Heating and Cooling Thermostats
Detailed technical specifications for Alpha heating and cooling models.
Power consumption
Table detailing power consumption based on supply voltage and frequency.
Refrigerant and filling quantity
Information on refrigerants, quantities, and environmental impact.
Pump characteristics Alpha Immersion Thermostat
Graph illustrating the pump's performance characteristics.
Heating up curves from Alpha A 6, A 12 and A 24 (230 V~)
Graphs showing the heating performance of specific Alpha models.
Cooling characteristics Alpha RA 8, RA 12 and RA 24 (230 V~)
Graphs illustrating the cooling performance of specific Alpha RA models.
Declaration of Conformity and Product Returns
EU DECLARATION OF CONFORMITY
Official declaration of compliance with European directives for Alpha thermostats.
EU DECLARATION OF CONFORMITY
Official declaration of compliance with European directives for Alpha RA thermostats.
Product Returns and Clearance Declaration
Forms and procedures for product returns, repairs, and clearance.
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