CIAT LJA Series User Manual

LJA - LJAH
Installation
Fonctionnement
Mise en service
Maintenance
Installation
Operation
Commissioning
Maintenance
Notice d’utilisation
User’s brochure
Gebrauchsanweisung
01 - 2005
N 99.21 C
Groupe de production
d’eau glacée
à condensation par air
Packaged water
chillers with
air-cooled condenser
Montage-
Betriebs-und
Wartungs-
Anleitung
Kaltwassersätze
Radialventilator
Ciatcooler

CIAT LJA Series Specifications

General

Brand	CIAT
Model	LJA Series
Category	Chiller
Language	English

Summary

Introduction

Equipment Reception

Check unit and delivery compliance upon arrival at site.

Safety Recommendations

Unit Location Choice

Requirements for indoor installation, level surface, accessibility, and air circulation.

Handling and Installation

Vibration Isolators

LJAH Units

Frost Protection with Glycol Solution

Adjustment of Hot Gas Valve

Electrical Connections

Electronic Control and Display Panel

Main Functions

Control and Safety Equipment

Details how safety devices are managed by the electronic module and reset procedures.

Location of Thermistors and Safety Devices

Commissioning

Verifications Before Commissioning

Checks required before starting the unit, including leaks, water flow, and electrical connections.

Commissioning Sequence

Technical Characteristics

Frost Protection Option

Electrical Characteristics

Setting of Control and Safety Devices

Maintenance

Customer Connection of Remote-Controlled Functions

Automatic Control

Analysis, Main Repair Remedies

1 - Suction pressure too low

Discusses causes like air presence or low pump flow and their remedies.

2 - Discharge pressure too high

Covers issues like incorrect ventilation or warm intake air and their fixes.

3 - Motor coil fault

4 - Chilled fluid outlet temperature too high

Explains problems like high thermal load or incorrect setpoints and their solutions.

Communication