Hei-CHILL - Chiller - Operating instructions - 250-1200

Nov 4, 2026

Operating instructions for Hei-CHILL chillers covering models 250, 350, 600, and 1200, including a version overview and translation references. The manual explains symbols, safety instructions, intended use, and EU declaration of conformity. It provides installation guidance such as site requirements, permitted personnel qualifications, device modifications, and safe operation and disposal. It also documents device description, start-up steps, filling and temperature settings, menu navigation, RS 232 interfaces and commands, alarm output, and autostart. Further sections address cleaning, maintenance intervals, thermal-fluid checks, troubleshooting, and assembly with electrical and peripheral connections, including calibration of the temperature sensor.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages96

Reading Time4 h 2 min

AccessFree to download

About this Document

Version and variants

About this manual

Symbols and keywords

Safety Instructions

General safety instructions

EU Declaration of Conformity

Intended use

Installation

Qualifications of personnel

Operating company’s obligations

Installation site

Modifications to the device

Safety of personnel

Safety during use

Disposal

Device Description

Device overview

Device overview Hei-CHILL 250 / 350 / 600 / 1200

Hei-CHILL control panel

Start Up

Setting up the device

Connecting/disconnecting the power cord

Switching the device on and off

Filling with thermal fluid

Filling for the first time

Menu navigation

Entering the temperature setting

Setting the temperature limits

Setting the temperature setpoint

Operation

Overview of menu structure

Temperature control operation

Interfaces

RS 232 interface

Interface commands

Cable and interface test for RS232

Alarm output

Autostart

Restoring the factory settings

Cleaning and Maintenance

Cleaning

Cleaning the device

Cleaning the air filter

Maintenance

Maintenance intervals

Checking the thermal fluid

Troubleshooting

Malfunctions and troubleshooting

Assembly

Electrical connection

Peripheral connections

Overview of connections

Connecting the alarm output

Temperature control hoses

Connecting the chiller to the external consumer

Calibrating the temperature sensor

Hei-CHILL Chiller Betriebsanleitung Operating instructions Hei-CHILL 250 Hei-CHILL 350 Hei-CHILL 600 Hei-CHILL 1200 Translation of the original instructions Page 4 – 45 Originalbetriebsanleitung Seite 48 – 90 Certifications / Zertifikate Page/Seite 91 – 94 Contents About this Document 4 Version and variants ...........................................................................................4 About this manual ..............................................................................................4 Symbols and keywords........................................................................................5 Safety Instructions 6 General safety instructions...................................................................................6 EU Declaration of Conformity.........................................................................6 Intended use...............................................................................................6 Installation .................................................................................................7 Qualifications of personnel ............................................................................7 Operating company’s obligations...........................................................................8 Installation site ...........................................................................................8 Modifications to the device ............................................................................8 Safety of personnel ......................................................................................8 Safety during use ...............................................................................................9 Disposal ............................................................................................................9 Device Description 10 Device overview ............................................................................................... 10 Device overview Hei-CHILL 250 / 350 / 600 / 1200 ........................................ 10 Hei-CHILL control panel .............................................................................. 11 Start Up 12 Setting up the device ........................................................................................ 12 Connecting/disconnecting the power cord ............................................................ 13 Switching the device on and off .......................................................................... 13 Filling with thermal fluid .................................................................................... 14 Filling for the first time ............................................................................... 15 Menu navigation ............................................................................................... 17 Entering the temperature setting ........................................................................ 18 Setting the temperature limits ..................................................................... 18 Setting the temperature setpoint ................................................................. 20 Operation 21 Overview of menu structure ...............................................................................21 Temperature control operation............................................................................22 Interfaces........................................................................................................23 RS 232 interface........................................................................................ 23 Interface commands .................................................................................. 24 Cable and interface test for RS232 ............................................................... 25 Alarm output..........................................

FAQs

What safety topics does the manual cover for Hei-CHILL chillers?

It covers general safety instructions, EU Declaration of Conformity, intended use, installation safety, safety for personnel, safe operation during use, and disposal guidance.

How does the manual describe starting up and operating the chiller?

It explains setup steps, power cord connection, switching on/off, filling with thermal fluid, first-time filling, menu navigation, entering temperature settings, and configuring temperature limits and setpoints.

What interface and control features are documented for operation?

It documents the RS 232 interface, interface commands, cable and interface testing for RS232, alarm output, autostart, and restoring factory settings.

Nov 4, 2026

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