3401-2A Refrigeration Training System

Transcription

1 3401-2A Refrigeration Training System LabVolt Series Datasheet Festo Didactic en 240 V - 50 Hz 12/2016

2 Table of Contents General Description 2 Topic Coverage 2 Features & Benefits 2 List of Manuals 3 Table of Contents of the Manual(s) 3 Additional Equipment Required to Perform the Exercises 4 Optional Equipment 4 Specifications 4 Module Options Description 5 General Description The Refrigeration Training System is an integrated training system that introduces students to the principles and components of a refrigeration system using industrial and commercial devices. The training system clearly demonstrates the operation of the most common refrigeration system configurations, including dual evaporator systems. Lockable fault-insertion switches allow students to practice troubleshooting skills, which may be conducted at either the schematic control panel or at the suspect devices and components. Fully integrated courseware guides students through alternative modes of system set-up and control. The training system includes all the equipment required to perform the exercises contained in the courseware. Optional equipment adds to the efficiency of the refrigeration, air conditioning, and heating training laboratories. The Refrigeration Training System is supported by correlated courseware employing a competency-based, individualized approach to the study of intermediate refrigeration topics. The courseware consists of a training manual organized in a unit/exercise format with clearly stated objectives. Topic Coverage Introduction to the System Trainer Setup Receiver, Accumulators, Oil Separators Compressor Operation of Metering Devices System Control Services Evaporator and Condenser Principles Refrigeration Systems Variations of System Loading System Troubleshooting Features & Benefits Two forced-air evaporator coils operating individually, in series, or in parallel, enclosed in chambers with clear acrylic windows Variable-speed fans and adjustable damper to simulate changing environmental conditions Schematic panel with multicolored electrical and tubing schematics, as well as indicator lamps and functional duplication of test points Lockable fault-insertion switches to introduce 18 distinct electrical faults Heavy-duty steel mobile stand with heavy-duty casters 2 Festo Didactic

3 Instrumentation including: temperature, watt, volt, and ampere meters, as well as pressure gauges Circuit breakers and safety pressure switch to protect the system R-134a refrigerant Estimated program duration: 65 hours List of Manuals Manual Description number Refrigeration Systems and Controls (Student Manual) Refrigeration Systems and Controls (Instructor Guide) Refrigeration System Setup (User Guide) E0 Table of Contents of the Manual(s) Refrigeration Systems and Controls (Student Manual) ( ) 1 Introduction to the Refrigeration System Trainer 1-1 System Control Panels 1-2 System Configuration 2 Receivers, Accumulators, Oil Separators 2-1 Liquid Receiver 2-2 Suction Line Accumulator 2-3 Oil Separator 3 The Compressor 3-1 Types of Compressors 3-2 Operation of the Compressor 3-3 Compressor Test Equipment 4 Operation of Metering Devices 4-1 Thermostatic Expansion Valve 4-2 Automatic Expansion Valve 4-3 Capillary Tube 5 System Control Devices 5-1 Pressure Controllers 5-2 Thermostatic Controls 5-3 Solenoid Valve Controls 5-4 Back Pressure Regulator 6 Evaporator and Condenser Principles 6-1 Superheating and Subcooling 6-2 Heat Exchanger 7 Refrigeration Systems 7-1 Evaporators in Parallel 7-2 Dual Thermostatic Controls 7-3 Complex Refrigeration System 8 Variations of System Loading 8-1 Heat Loading with Capillary Tubes 8-2 Heat Loading with Thermostatic Expansion Valves 9 System Troubleshooting 9-1 Compressor, Pressure Controller, and Evaporator Fan Faults 9-2 Thermostatic Controller and Condenser Fan Faults Festo Didactic 3

4 9-3 Unknown Faults Additional Equipment Required to Perform the Exercises Model Qty Description number 1 1 Training on Refrigeration Systems and Controls, 1.1 days TF Optional Equipment Qty Description Model number 1 Refrigeration Charging Equipment Vizi-Vapor Charging Accessory Refrigerant Recovery Unit Specifications Parameter Power Requirements Current Service Installation Compressor Type Nominal Power Refrigerant Evaporator Condenser Control Devices Instrumentation Auxiliary Equipment Value 6 A Standard single-phase ac outlet Semi-hermetic 373 W (0.5 hp) R134-a. The help of a refrigeration technican is required to fill the training system with refrigerant. 2 forced-air coils, enclosed in separate chambers, with variable-speed fans. May be operated individually, in series, or in parallel. 1 forced-air coil with variable-speed fan. High-pressure switch Low-pressure switch Thermostatic expansion valve Back-pressure regulator Capillary tube Automatic expansion valve Solenoid valves Thermostatic controllers Temperature meter Watt meter Volt and ampere meters Pressure gauges Indicator lamps Liquid receiver Suction accumulator 1 Optional training at Festo Didactic (Canada or USA). For details or other options, contact "training.didactic.ca@festo.com". 4 Festo Didactic

5 Parameter Protection Fault Insertion Switches Number 18 Physical Characteristics Intended Location Dimensions (H x W x D) Net Weight Value Module Options Description Filter dryer Refrigeration Charging Equipment Oil separator Manual valves Heat exchanger Safety pressure switch Mains and compressor breaker switch On the floor (stands on casters) 1900 x 2200 x 800 mm (74.8 x 86.6 x 31.5 in) 281 kg (619.5 lb) The Refrigeration Charging Equipment is an accessory kit in refrigeration and air conditioning. The Refrigeration Charging Equipment is designed to enable students to evacuate and charge refrigeration training systems. It consists of a manifold, a charging hose kit, a vacuum pump, an automatic refrigerant charging meter, and a heater blanket. Features & Benefits Easy-to-read gauges Forged-brass body with metal valve handles Color-coded hoses Hose cover pin-pricked to resist bubbling and bursting Two-stage vacuum pump for great efficiency Refrigerant charging meter automatically shuts off when charging is completed Compatible with refrigerants R-12, R-134a, R-404A, R-502, and R-507 Specifications Festo Didactic 5

6 Parameter Refrigeration Charging Equipment Value Manifold Charging hose kit Vacuum pump Automatic refrigerant charging meter Heater blanket Vizi-Vapor Charging Accessory The Vizi-Vapor Charging Accessory is an accessory in refrigeration and air conditioning. It transforms liquid refrigerant into saturated vapor visible in the transparent cylinder. This helps ensuring the system is properly charged. The Vizi-Vapor Charging Accessory requires the Refrigeration Charging Equipment, Model Refrigerant Recovery Unit The Refrigerant Recovery Unit enables students to recover refrigerant for storage or recycling. A low-pressure indicator on the unit monitors the pressure condition on the suction side of the recovery system. A filter dryer and an oil separator are used to condition the refrigerant before it enters the recovery system compressor. At the high-pressure side of the recovery system compressor, a second oil separator ensures good lubrication by returning the oil at the suction side of the compressor, thus avoiding oil migration to the storage tank. A high-pressure indicator is also provided to monitor the pressure conditions on the discharge side of the compressor. A high-pressure controller will automatically shut off the compressor if the discharge pressure exceeds a preset limit. A forced-air condenser is used to transform the high-pressure refrigerant vapor to a highpressure liquid refrigerant. 6 Festo Didactic

7 List of Manuals Manual Description number Refrigeration System Setup (User Guide) E0 Refrigerant Recovery Unit (Instruction Manual) D0 Features & Benefits Hermetically sealed compressor Compressor oil drain conveniently located at the bottom of the unit Easy access to filter at the back of the unit, after removal of the access door Forced-air coil condenser Low-and high-pressure gauges High-pressure safety device Compatible with refrigerants R-134a Specifications Parameter Power Requirements Current Service Installation Compressor Type Nominal Power Oil Condenser Type Refrigerant Compatibility Filter/Dryer Type Instrumentation Safety Device Physical Characteristics Intended Location Required Floor Space (H x W x D) Net Weight Value 1.25 A Standard single-phase ac outlet Hermetically sealed 186 W (1/4 hp) Polyolester, 280 ml (9.5 oz) Forced-air coil R134a 82 ml (5 in³), 6.35 mm (0.25 in) flare x 6.35 mm (0.25 in) flare Low- and high-pressure gauges High pressure On a table able to support the weight of the equipment 345 x 490 x 255 mm (13.6 x 19.3 x 10 in) 50 kg (110 lb) Festo Didactic 7

8 Reflecting the commitment of Festo Didactic to high quality standards in product, design, development, production, installation, and service, our manufacturing and distribution facility has received the ISO 9001 certification. Festo Didactic reserves the right to make product improvements at any time and without notice and is not responsible for typographical errors. Festo Didactic recognizes all product names used herein as trademarks or registered trademarks of their respective holders. Festo Didactic Inc All rights reserved. Festo Didactic SE Rechbergstrasse Denkendorf Germany P. +49(0)711/ F. +49(0)711/ Festo Didactic Inc. 607 Industrial Way West Eatontown, NJ United States P F Festo Didactic Ltée/Ltd 675 rue du Carbone Québec QC G2N 2K7 Canada P F Festo Didactic