Rehsler Kuhlsysteme TAE K15

Questions and Answers

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Jonathan MuellerAug 17, 2025
Why is the Rehsler Kuhlsysteme TAE K15 tank water outlet temperature too high?
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  Kelly LeeAug 18, 2025
  The tank water outlet temperature might be higher than expected due to several reasons: * The thermal load might be too high. Try restoring the thermal load to within the preset limits. * The ambient temperature may be too high. If installed in a closed space, increase the air flow to lower the ambient temperature. * The condenser fins could be dirty. Clean the condenser fins. * The front surface of the condenser might be obstructed. Clear any obstructions. * There might be a refrigerant leak. In this case, a technician should check for leaks, eliminate them, and refill the unit. * The compressor protection may be tripping. If so, a technician should check for leaks, eliminate them, and refill the unit.
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Andrea MarshallAug 20, 2025
What to do if Rehsler Kuhlsysteme TAE K15 Chiller displays high pressure switch tripped (HP) Alarm A01?
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  crystalmartinezAug 20, 2025
  If the high pressure switch has tripped and Alarm A01 is displayed, consider the following possible causes: * The fan might not be working. Repair or replace the fan and verify its heat protection. * The ambient air temperature could be too high. Reduce the ambient temperature by increasing local ventilation. * Warm air might be recirculating due to incorrect installation. Change the unit's position or remove obstructions to prevent recirculation. * The condenser fins could be dirty. Clean the condenser fins. * The front surface of the condenser might be obstructed. Clean the front surface of the condenser. * The thermal load might be too high. Reduce the thermal load if possible.
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ghouseAug 22, 2025
What to do if Rehsler Kuhlsysteme Chiller compressor protection trips and Alarm A09 or A10 appears?
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  Gregory KlineAug 22, 2025
  If the compressor protection trips and Alarm A09 or A10 is displayed, it could be due to: * A thermal load that is too high combined with a shortage of refrigerant. In this case, call a qualified refrigeration engineer to check for leaks and replenish refrigerant charge. * The rotation direction of the scroll compressor being wrong (only on three-phase units). If so, invert two phases of the power supply.
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Yolanda CunninghamAug 26, 2025
What to do if Rehsler Kuhlsysteme TAE K15 Chiller displays Water differential pressure switch FLOW alarm A08?
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  carlosponceAug 26, 2025
  If the water differential pressure switch FLOW alarm trips and A08 is displayed, check the following: * If installed, the filter upstream from the unit may be obstructed. Clean the upstream filter. * The pump might be defective or rotating in the wrong direction (for three-phase supplies). Check the pump's electrical supply and, if necessary, invert two phases. * If the unit lacks a hydraulic kit, the water inlet and outlet might be inverted. Invert the water inlet and outlet.
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Chris GrantAug 27, 2025
How to fix low pressure drop at pump outlet in Rehsler Kuhlsysteme TAE K15 Chiller?
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  Andrew NavarroAug 27, 2025
  A low pressure drop (water pressure) at the pump outlet may be caused by: * Water flow being too high or the pump working incorrectly (high flow, low discharge head, high absorption). Reduce water flow to within the preset limits, for example, by partially closing a pump outlet cock. Reset the pump thermal protection and check the electrical absorption. * The evaporator being obstructed by dirt transported by the utilization water. Depending on the type of dirt, clean the evaporator by running a detergent solution which is not aggressive for steel, aluminum, and copper, or run a high water flow against the stream. Consider installing a filter upstream from the unit.
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Justin HesterAug 30, 2025
What to do if Rehsler Kuhlsysteme TAE K15 displays low pressure switch tripped (LP) Alarm A02?
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  ashley76Aug 30, 2025
  If the low pressure switch has tripped and Alarm A02 is displayed, the possible causes are: * Lack of refrigerant. Call a qualified refrigeration engineer to check for leaks and replenish the refrigerant charge. * The filter upstream from the unit is dirty, if installed. Clean or replace the water inlet filter, if installed.
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flynngregorySep 1, 2025
What causes the Rehsler Kuhlsysteme TAE K15 Chiller digital display and LEDs to turn off?
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  Amber BennettSep 2, 2025
  If the digital display and all LEDs are off on your Rehsler Kuhlsysteme Chiller, even when the main switch is on, it could be due to: * The auxiliary circuit fuse tripping. Check the causes of the fuse tripping and replace the fuse. * Abnormal power consumption by one or more of the control board components. Try turning the unit off and on again. If this doesn't solve the problem, contact the nearest service center.
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Stacy LeachSep 4, 2025
What to do if Rehsler Kuhlsysteme TAE K15 shows Alarm P1, P2, P3, P4?
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  Jacob WardSep 4, 2025
  If Alarm P1, P2, P3, or P4 is displayed on your Rehsler Kuhlsysteme Chiller, it indicates that the BEWOT, BTWOT, or BAT1 probe is damaged. Check that the temperature probe is correctly connected to the control board terminals and that the cable is undamaged. If necessary, replace the probe.
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Amy WoodsSep 7, 2025
How to resolve the Rehsler Kuhlsysteme TAE K15 Chiller Alarm A08 pump thermal protection?
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  ugarciaSep 7, 2025
  If the Rehsler Kuhlsysteme Chiller shows Alarm A08 for pump thermal protection, it may be due to: * The pump's thermal protection device tripping because the water flow is too high. Reset the thermal protection device and increase the pressure drop in the hydraulic circuit, for example, by partially closing the pump output valve. * The grille through which the pump cooling air passes being obstructed. Reset the thermal protection device and free the grille. * The pump being defective. Reset the thermal protection device and replace the pump.
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dkellySep 9, 2025
What causes Alarm A04 on Rehsler Kuhlsysteme TAE K15 and how to fix it?
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  Tammie SuttonSep 9, 2025
  If your Rehsler Kuhlsysteme Chiller displays Alarm A04, it indicates a low water outlet temperature. This can be due to: * The value fixed by the parameter is lower than the one measured by the probe. Identify and remove the cause which provoked BTWOT temperature decreasing to a value lower than Ar03. * Too low water flow. Increase the water flow.

Summary

General Information

Model Interpretation

Explains how to interpret the model designation for TAE chillers.

Symbols and Indicators

Defines the meaning of various symbols used on the unit and in the manual.

Safety

General Safety Precautions

Provides essential safety rules for handling and operating the unit.

User Circuit Liquids

Discusses compatibility and handling of liquids used in the unit's process circuit.

Lifting and Carriage Safety

Outlines safe procedures for lifting and transporting the chiller unit.

Installation Precautions

Details essential safety measures for the correct installation of the unit.

Operating Precautions

Lists safety guidelines to follow during the normal operation of the chiller.

Maintenance and Repair Safety

Emphasizes safety procedures for performing maintenance and repair tasks.

Refrigerant Gas Safety

Covers safety information, handling, and first aid for the refrigerant R134a.

Technical Data

Machine Dimensions

Provides dimensional specifications for the TAE K15-K20 models.

Pump Characteristics

Details the specifications and performance of the unit's pump.

Description

Unit Components Overview

Lists and briefly describes the main components of the water chiller.

Cooling Circuit Details

Explains the configuration and components of the refrigerant cooling circuit.

Compressor Information

Describes the type, features, and protection of the hermetic compressors.

Condenser Description

Details the construction and function of the condenser unit.

Evaporator Description

Explains the evaporator type and its anti-ice protection features.

Tank Features

Describes the storage tank, its protection, and level sensing.

Pump Specifications

Provides details on the centrifugal pump, seals, and installation notes.

Fan Details

Describes the axial fans, their protection rating, and insulation class.

Casing Construction

Details the materials and design of the unit's casing for access and durability.

Materials in Contact with Liquid

Lists the materials used for components in contact with the cooled liquid.

Installation Clearance Requirements

Specifies minimum distances required around the unit for installation.

Electrical Circuit Overview

Refers to installation chapter for electrical connection details.

Installation

Initial Inspection Procedures

Steps to follow for inspecting the unit immediately after uncrating.

Unit Positioning Guidelines

Recommendations for optimal and safe placement of the chiller.

Antifreeze Protection Measures

Guidance on adding antifreeze for cold season protection based on temperature.

Hydraulic Connections

Instructions for connecting the unit to the water piping system.

Electrical Connections Requirements

Details electrical connection standards, voltage, and wiring recommendations.

Start Up

Pre-Startup Checks

Checklist of essential items to verify before powering on the unit.

Unit Power On Procedure

Step-by-step guide to switch on the unit and initiate operation.

Electronic Board

Display and Iconography

Explains display zones, icons, symbols, and their meanings.

Control Button and Terminal Functions

Details the functionality of control panel buttons and the remote terminal interface.

Alarm Display and Silencing

Covers how alarms are displayed, icons, and procedures for silencing audible alerts.

Initial Start Up Procedures

Guides for the first start-up of the unit.

Keyboard Programming Guide

Guides for accessing and modifying unit parameters via the keyboard.

Displayed Value Configuration

Explains how to configure parameters to customize displayed values.

Unit On;Off and Stand-by Modes

Instructions for powering the unit on/off and placing it into stand-by mode.

Function Menu Operations

Instructions for accessing and using the unit's function menu for alarms and history.

Operating Hours Management

How to view and reset operating hours for unit components.

Other Keyboard Functions

Additional functions like displaying and modifying the set point.

Probe Key Information

Identifies probes and their descriptions for refrigerant drawing consultation.

Other Components Setting

Compressor Integral Protection

Explains the thermistor-based protection system for compressors.

Refrigerant Pressure Switches

Details the function of high and low pressure switches in monitoring refrigerant circuits.

Compressor Operation Logic

Explains the proportional thermoregulation logic for compressor start/stop.

Compressor Regulation Graphic

Visual representation of compressor operation based on set points.

Operation and Maintenance

General Operation Mode

Describes the automatic operation of the chiller and its self-shutoff feature.

Maintenance Overview

General introduction to maintenance procedures and safety.

Unit Access for Maintenance

Instructions on how to access internal components by removing panels.

Scheduled Maintenance Tasks

A schedule outlining maintenance checks required at different intervals.

Trouble Shooting

Common Problems and Solutions

A guide to diagnosing and resolving common issues encountered with the chiller unit.

Setting Tables

Parameter Setting Overview

Introduces tables listing adjustable parameters and their settings.

Thermoregulation Parameters

Lists parameters for controlling temperature regulation and differentials.

Configuration Parameters

Details parameters related to display settings and unit configuration.

Dynamic Set Point Parameters

Lists parameters for dynamic set point functionality.

Energy Saving Parameters

Lists parameters for energy saving features.

Compressor Parameters

Lists parameters related to compressor operation settings.

Fan Parameters

Lists parameters controlling fan operation.

Antifreeze Resistance Parameters

Lists parameters for antifreeze alarm set points.

Defrost Parameters

Lists parameters for defrost cycle control.

Alarm Parameters

Lists parameters related to alarm configuration.

LASER Parameters

Lists parameters for LASER functionality (if enabled).

Alarms

Alarm Codes and Actions

Provides a comprehensive list of alarm codes, their meanings, causes, and actions.

Outlet Blocking Alarm Conditions

Details which alarms relate to outlet blocking conditions in the unit.