● Fully Operational Water Chiller With Cooling Load
● Evaporator Pressure Regulator to Demonstrate Non-Freeze Cooling
● Optional Data Acquisition Available.
● Optional Student Tool Kit, Test and Service Equipment
● Two year Warranty.
Introduction
The Water Chiller Training Unit 812 is a fully operational, water chiller, which enables the student to adjust and investigate a typical water cooler operating under load, either with or without evaporator pressure regulation.
The cooling of pure water requires that the evaporator surface temperature does not fall below 0°C or the system will freeze and may result in damage. This unit allows students to safely explore the parameters affecting evaporating pressure without danger to the operator or equipment.
As with all Hilton vocational equipment all of the components are clearly arranged on a panel allowing easy identification.
Components include:
Hermetic compressor
Water cooled condenser with adjustable pressure control
Liquid receiver
Water cooling evaporator
Adjustable evaporator pressure regulation
Suction accumulator
Cooling load, adjustable in steps of 1.0 and 0.5kW
Adjustable cooling water flow
Pressure, temperature and flow rate measurement.
Control panel that will accept optional computerised data acquisition.
Description
The 812 is one of a range of trainers designed to provide practical training in the fields of Refrigeration and Air Conditioning.
Each trainer has been carefully designed to provide instruction in specific topic areas that trainees are required to study as part of most Refrigeration and Air Conditioning courses.
The unit is mounted on a steel frame with stainless steel panels and comprises an hermetic compressor with water cooled condenser, liquid receiver, water cooling evaporator with adjustable pressure regulator. A pump circulates the cooled water at an adjustable flow rate through a tank with individually switched heaters that load the refrigeration system. Instrumentation includes condenser and suction pressure gauges, evaporator pressure (service gauge), digital temperature indicator with 10 way selector switch, evaporator and condenser flow rate measurement, optional refrigerant flow meter and optional computerised data acquisition system for all parameters including compressor current.
All the controls and the high and low-pressure switches are adjustable by the student to enable advanced studies in the control of vapour compression refrigeration equipment.
A standard Student Tool Kit and Test and Service Equipment Package are also available as optional extras
Further details available on request.
Specification
DETAILED
The unit is mounted on a steel framework, with stainless steel base and back panels and incorporates:-
Hermetic compressor
Water-cooled condenser.
Liquid receiver
Adjustable condenser pressure regulator
Water-cooling evaporator
Thermostatic expansion valve
Adjustable evaporator pressure regulator with detachable service gauge. Suction accumulator.
Water tank with individual switchable loads of 1kW, 1kW and 0.5kW
Water circulating pump with flow control.
Instrumentation includes:
Digital temperature indicator with 10 way selector switch.
Condenser and evaporator water flow meters.
Condenser and suction pressure gauges and detachable evaporator pressure gauge.
Optional refrigerant flowmeter.
Control panel including:
Overload protection
Contactor
Earth leakage protector
Optional computerised data acquisition system.
Operating Manual
A comprehensive operating manual includes:
Notes on theory and principles
Instructor’s guide notes
Sample test results and worked calculation examples
Separate electrical wiring diagram.
