CIAT LD 900 User Manual

LD 100 - 1000
Installation
Fonctionnement
Mise en service
Maintenance
Installation
Operation
Commissioning
Maintenance
Notice d’utilisation
User’s brochure
Gebrauchsanweisung
Manual del usuario
09 - 2003
N 99.15 C
Groupe Monobloc extérieur de
production d’eau glacée
à condensation par air, version
froid seul ou réversible
Air cooled packaged water
chiller or heat pump,
outpoor installation
Montage-
Betriebs-und
Wartungs-
Anweisung
Luftgekühlter Kaltwassersatz für
Aussenaufstellung, Kühlbetrieb oder umkehrbar
AQUACIAT
Grupo Monobloque exterior de producción de agua fría
de condensación por aire, versión sólo frío o reversible
Instalación
Funcionamiento
Puesta en marcha
Mantenimiento

CIAT LD 900 Specifications

General

Brand	CIAT
Model	LD 900
Category	Chiller
Language	English

Summary

Introduction

Safety Recommendations

Choice of Unit Location

Vibration Isolators (Option)

Glycol Solution Antifreeze Protection

Electrical Connections

Power Circuit

Electronic Control and Display System

Main Functions

Control

Control and Safety Devices

Low Pressure Switch

Safety function monitoring low pressure in the refrigerant circuit.

High Pressure Switch

Safety function monitoring high pressure in the refrigerant circuit.

Evaporator/Condenser Antifreeze Probe

Safety probe preventing freezing by monitoring fluid temperature.

Water Flow Switch Device

Safety device monitoring water circulation to prevent damage.

Internal Compressor Protection

Built-in protection for electric motors against overheating.

Outlet Probe

Start-up

Checks Before Start-up

Essential checks to perform before initial unit operation.

Start-up Sequence

Step-by-step procedure for safely starting the unit.

Immediate Checks

Insufficient Suction Pressure

Troubleshooting low suction pressure issues and their causes.

Excessively High Condensation Pressure

Troubleshooting high condensation pressure issues and their causes.

Setting of Control and Safety Devices

Water Inlet/Outlet Probes

Defrosting Probe Setting

Outside Air Probe Setting

Outlet Probe Setting

High Pressure Switch Setting

Setting and function of the high-pressure safety switch.

Low Pressure Switch Setting

Setting and function of the low-pressure safety switch.

Compressor Safety Device Setting

Condensation Pressure Transmitter Setting

Setting electronic transmitters for condensation pressure regulation.

Pressure Switch Setting (R22 & R407c)

Setting specific pressure switches for R22 and R407c refrigerants.

Condensation Pressure Control Setting

Setting condensation pressure control for year-round operation.

Customer Connection for Remote Functions

General Failure Alarm Connection

Display for Full Output Operation

Mode and Setpoint Selection Control

Setpoint Selection Control

Heating/Cooling Mode Selection

Connection Precautions

Fan Wiring

Troubleshooting

Low Suction Pressure Issues

Diagnosing and resolving issues related to low suction pressure.

High Discharge Pressure Issues

Diagnosing and resolving issues related to high discharge pressure.

Motor Coil Faults

Troubleshooting motor coil faults.

High Chilled Fluid Outlet Temperature

Diagnosing and resolving issues with high chilled fluid outlet temperature.