Lauda UC-140SP - User Manual

23 pages

Save Page as PDF

To Next Page

To Next Page

Loading...

OPERATION MANUAL

ultracool mini

0140 Indigo

Ref: MI-080 Rev: 1 Date: 30.04.03

50/60 Hz

Table of Contents

Questions and Answers

C
Christopher ClarkAug 9, 2025
Why is my Lauda UC-140SP Chiller alarming due to high refrigerant pressure?
- K
  kimmargaretAug 9, 2025
  The Lauda Chiller may alarm due to high refrigerant pressure for several reasons. The lateral panels of the housing might be open, so close them. There may be low airflow into the condenser, so clean the condenser. The ambient temperature could be too high, in which case you should wait until it lowers. The water temperature might be too high; try to cool down the water in the circuit while the chiller is stopped. Finally, the motor fan may not be working; check the motor fan fuses, and if the problem persists, contact authorised technical service.
A
Amy ElliottAug 15, 2025
What to do if the Lauda Chiller displays LO HI E0, Er2, EE codes?
- T
  Troy GordonAug 15, 2025
  If your Lauda Chiller's control thermostat displays LO HI E0, Er2, or EE codes, it could mean the temperature has been below the setpoint for some time. If the compressor is stopped, the water temperature will rise to normal eventually. It could also mean the temperature has been above the setpoint for some time; if the compressor is still running, contact authorised technical service. The thermostat or temperature sensor might also be faulty; check that the cold water setpoint is within the indicated limits, and if the problem persists, contact authorised technical service.
E
Erik BergAug 20, 2025
What to do if Lauda Chiller's low flow/temperature control operates continuously?
- R
  riveravincentAug 21, 2025
  If the low flow/temperature control of your Lauda Chiller operates continuously, the water circuit may be blocked. Clean the water circuit and check for closed valves. Freezing could also be a factor, so check the proportion of ethylene glycol. Another possibility is a circuit break in the pump; reset the circuit breaker of the pump, and if the problem persists, contact authorised technical service.
J
Jacob SanfordAug 27, 2025
What to do if there is a water level alarm on my Lauda Chiller?
- T
  Travis HillAug 27, 2025
  If your Lauda Chiller is showing a water level alarm, it is likely due to water leakage. Check the water circuit and refill the tank.
J
Jeanette RobbinsSep 1, 2025
How to fix a Lauda UC-140SP with an alarm due to low refrigerant pressure?
- M
  mayerkaitlynSep 1, 2025
  If your Lauda Chiller is alarming due to low refrigerant pressure, this could be caused by a gas leakage. Contact authorised technical service.

Summary

Safety Warnings

Introduction

Operational Safety Regulations

Outlines critical safety rules, protective measures, and proper handling procedures during operation and maintenance.

Installation Guide

Receiving and Inspecting the Unit

Selecting the Installation Site

Installation and Environmental Conditions

Water Inlet and Outlet Connections

Instructions for installing water filters and connecting the unit to the water supply system.

Electrical Supply and Connections

Information on electrical design compliance, supply voltage, and connection requirements.

Unit Start-up Procedure

Operating Temperature and Conditions

Pre-Start Checklist

Initial Chiller Start-up and Checks

Detailed procedure for initial unit startup, including compressor heating and pump rotation verification.

Control Panel Overview

Control Panel Elements and Functions

Control Thermostat Operation

Details on the control thermostat's display, settings, and operational adjustments.

Setting the Temperature

Maintenance Schedule

Routine Maintenance Tasks

Routine tasks to be performed weekly, monthly, and yearly to ensure unit performance.

Troubleshooting Guide

Alarm Identification and Resolution

Chart detailing common alarms, their causes, solutions, and restart procedures.

Diagnostic Codes and Troubleshooting

Spare Parts Listing

Replacement Parts Identification

Summary

Safety Warnings

Introduction

Operational Safety Regulations

Outlines critical safety rules, protective measures, and proper handling procedures during operation and maintenance.

Installation Guide

Receiving and Inspecting the Unit

Selecting the Installation Site

Installation and Environmental Conditions

Water Inlet and Outlet Connections

Instructions for installing water filters and connecting the unit to the water supply system.

Electrical Supply and Connections

Information on electrical design compliance, supply voltage, and connection requirements.

Unit Start-up Procedure

Operating Temperature and Conditions

Pre-Start Checklist

Initial Chiller Start-up and Checks

Detailed procedure for initial unit startup, including compressor heating and pump rotation verification.

Control Panel Overview

Control Panel Elements and Functions

Control Thermostat Operation

Details on the control thermostat's display, settings, and operational adjustments.

Setting the Temperature

Maintenance Schedule

Routine Maintenance Tasks

Routine tasks to be performed weekly, monthly, and yearly to ensure unit performance.

Troubleshooting Guide

Alarm Identification and Resolution

Chart detailing common alarms, their causes, solutions, and restart procedures.

Diagnostic Codes and Troubleshooting

Spare Parts Listing

Replacement Parts Identification

Lauda UC-140SP Specifications

General

Refrigerant	R404A
Pump Capacity	22 L/min
Weight	35 kg
Pump capacity pressure	0.5 bar
Temperature Stability	±0.1°C
Power Supply	230 V / 50 Hz

Related product manuals

Lauda ULTRACOOL UC 14

Preview: Lauda ULTRACOOL UC 8

Lauda ULTRACOOL UC 8

Lauda ULTRACOOL UC 24

Lauda ULTRACOOL UC 50

Lauda ULTRACOOL UC 65

Preview: Lauda Ultracool Superplus series

Lauda Ultracool Superplus series

Preview: Lauda MC 250