Modular Refrigeration Training System for R134A
(AR-023)
  • Design of compression refrigeration circuit.
  • Charging and discharging of refrigeration systems.
  • Operation of refrigeration components.
  • Cyclic process of cold production.
  • Compare different expansion elements.
  • Design of different simple refrigeration circuits.
  • Design, operation and adjustment of basic circuits experimental modules:
    • Sight glass with filter/drier.
    • Expansion valve.
    • Thermal expansion valve.
  • Electric two-point thermostat with switch hysteresis.
  • Suction line receiver.
  • Setup of different advanced refrigeration circuits.
  • Design, operation and adjustment of advanced circuits experimental modules:
    • Evaporation pressure, intake pressure, capacity and refrigeration controllers.
    • Electric thermostat.
    • Manual valve as expansion element
    • Post-injection valve.
    • Solenoid valve with coil.
    • Four-way reversing valve.
    • Power and auxiliary contactor.
    • Time relay.
    • Defrost timer.
    • Hot gas defrosting.
    • Evacuating moisture in the pipes using the nitrogen cylinder and the digital manifold.
  • Vacuuming the system using the vacuum pump and digital manifold.
  • Charging the refrigeration cycle with refrigerant from the refrigerant cylinder using the recovery machine.
  • Identifying the amount of refrigerant taken from the refrigerant cylinder to the cycle using the wireless scale.
  • Checking and charging the refrigerant using the clamp ampere device.
  • Visualizing pass of the refrigerant through pipes and assure there is no bubbles through the refrigerant in the cycle using the sight glass.
  • Performing the leakage test using the leakage detector.
  • Main Kit Code: (AR - 023.1)
    • Condensing unit
      • Frequency: 50 Hz (Standard)
      • Nominal Refrigerating Capacity: 1412 watts (Standard)
    • Compressor
      • Type: Reciprocating Compressors
      • Product Description: R-134a
      • Voltage/Frequency: 220-240V ~ 50Hz
      • Refrigeration Capacity (R) Btu/h: 5000
      • Input Power (I) W: 637
      • Efficiency (E) Btu/Wh: 7.85
      • Evaporating Temp. Range: -15°Cto 15°C
    • Fan Motor
      • R.P.M: 1300 tr/min
      • Shaft power: 55 W
      • Fan blade dia.: Ø 250 mm
      • Protection: Overload
    • Receiver
      • Volume /Capacity: 0.75 L
      • PMS / Max. service pressure: 32 Bars
      • Fan Guard Grid space < 8mm
    • Evaporator pressure regulator KVP 15
      • Regulating range: 0 – 5.5 bar
      • Maximum working pressure: 18 bar
      • Medium temperature range: -45 – 130 °C
      • Rated capacity [kW]: 2.8
    • Solenoid valve
      • Coil voltage: 220V
      • Frequency: 50 Hz
      • Power: 11 watts.
    • T-connection
    • Filter tank with sight glass
      • Net volume: 0.114L.
      • COT: -40~+70 °C
      • Medium: R-134a
    • High pressure gauge
      • Working pressure: 0~35 bar.
    • Hot gas bypass regulator KVC 15
      • Regulating range Pe = 0.206843 – 5.99844 bar
      • Maximum working pressure MWP = 27.99271 bar
      • Maximum test pressure Pe = 31.02641 bar
      • Medium temperature range -45 ~ 130 °F
      • Maximum P-band= 1.99948 bar
    • Room temperature thermostat and room temperature sensor
      • Temperature sensor: PT100.
      • Evaporator coil area: 2m2.
      • Defrost heater power: 150 W.
    • Measuring sensor
      • Pressure: 2 x pressure sensor
      • Temperature: 3 x pt100
    • Connections Pressure connections
      • 3 x 7/16" UNF+ 1x 5/8“
    • Measurement ranges
      • Pressure measurement range HP/LP: -100…5000 kPa / -0.1…5 Mpa / -1…50 bar (rel) / -14.7…725 psi
      • Temperature measurement range: -50…+150 °C / -58…302 °F
      • Measurement range vacuum (rel): -1…0 bar/ -14.7…0 psi
      • Overload: 52 bar, 5200 kPa, 5.2 Mpa, 754 psi
    • Hoses
      • Max. Working Pressure: 800 Psi / 55 bar
      • Burst Pressure: 4000 Psi / 276 bar
    • Thermal expansion valve
      • Refrigerant: R-134a
    • Capillary tubes
      • Capillary tube 36 → ID = 0.9 mm
      • Capillary tube 44 → ID = 1.1 mm
      • Capillary tube 55 → ID = 1.4 mm
      • Capillary tube 70 → ID = 1.8 mm
      • Length: 1.8 m.
    • Temperature monitoring
    • High/low pressure switches
      • Ambient temperature [°C]= -40 - 65 °C
      • Differential left side [bar]= 0,70 - 4,00 bar
      • Differential right side [bar]= 4,0 bar
      • Max. Working Pressure, left side [bar] Pe = 17,0 bar
      • Max. Working Pressure, right side [bar] Pe = 35,0 bar
      • Regulation left side [bar]Pe = -0,20 - 7,50 bar
      • Regulation right side [bar] Pe = 8,0 - 32,0 bar
    • Low pressure gauge
      • Working pressure: -1~25 bar.
  • Modular Refrigeration Training System for R134A (AR - 023)
    • Main Kit (AR - 023.1)
  • Hard Copy User manual
  • Digital Content (BI-01)
  • Digital Refrigerant Manifold (AR - 023.2.1)
  • Refrigerant Leak Detector (AR - 023.2.2)
  • Refrigerant Recovery Machine (AR - 023.2.3)
  • Vacuum Pump (AR - 023.2.4)
  • Wireless Refrigerant Scale (AR - 023.2.5)
  • Digital clamp meters (AR - 023.2.6)
  • Nitrogen Cylinder (AR - 023.2.7)
  • Refrigerant Cylinder (AR - 023.2.8)

The modular refrigeration training system allows trainees to design R134a refrigeration circuits and to perform basic and advanced experiments to theses circuits. The modular refrigeration components used for this trainer are all real components to introduce trainees to refrigeration components in markets to acquire different technical skills such as performing the needed connections, discharging the unit from water vapor, vacuuming the system, charging and discharging the system with freon.

                                     
  • The refrigeration training unit demonstrates the basic cycle used in refrigeration systems as well as different auxiliaries that can be added to the cycle to make it more controllable and increase its overall refrigeration efficiency.
  • The trainer allows trainees to read, use, and perform calculations related to pressure-enthalpy diagrams for R134a Freon and be more familiar with the components of the cycle and the function of each one, as well as the tools used to perform the needed measurements in the cycle.
  • The training system consists of a sturdy frame with racks, a condensing unit, an evaporator unit, experimental modules and refrigeration tools and equipment.
  • The frame helps trainees to construct refrigeration circuits easily by inserting the experimental modules in the racks and connect them using refrigeration pipes and is used also as a workbench for technical practice.
  • The frame also includes the main power module that contains two rows of Line and Neutral terminals, emergency button, circuit breaker, trainer ON/OFF switch, power sockets, USB socket and P-H graph of R134a.
  • The condensing unit consists of a compressor, a condenser, a condenser fan and a liquid receiver.
  • The evaporator unit has a door to isolate the low temperature resulted by the evaporator coil inside the refrigerator and consists of an evaporator coil, room temperature thermostat and room temperature module.
  • The evaporator unit is supplied with inlets and outlets for constructing refrigeration circuits and charging and discharging the refrigerant.
  • The experimental modules are an evaporator pressure regulator module KVP 15, a thermal expansion valve module, solenoid valve module, capillary tubes modules, T-connection module, temperature monitoring module, filter tank with sight glass module, high/low pressure switches module, high pressure gauge module, low pressure gauge module, hot gas bypass regulator module KVC 15, compressor power control module room temperature thermostat and room temperature sensor module. 
  • The trainer allows trainees to learn the sequence of refrigeration cycles creation and maintenance as they are performed in real life.
  • The educational unit allows trainees to gain these skills and much more by safe experimentation.
  • The condensing unit, the evaporator unit and experimental modules are all prepared by inlets and outlets to facilitate connecting hoses and create refrigeration cycles.
  • The whole trainer is completely safe for performing a wide range of refrigeration cycles.
  • The trainer is supplied with hoses and cables at the hose holder at the trainer side.
  • Display: LCD (5 inches diagonal)
  • Backlight: Blue (adjustable duration)
  • Low Battery Indication: is displayed when the battery voltage drops below the operating level.
  • Over Range Display: OL for pressure,
  • Auto Power Off: 30 minutes of inactivity (adjustable)
  • Maximum Manifold Pressure: 800 Psig (5500 kPa)
  • Battery Type: 6 x AA alkaline
  • Battery Life: 350 hours typical (without vacuum, backlight, and wireless)
  • Radio Frequency: 2.4 GHz
  • Wireless Range: 1000 feet (305 meters) line of sight – distance decreases through obstructions
  • Data Port: Micro USB (for extracting data logs or updating firmware)
  • Operating Environment: 32°F to 122°F (0°C to 50°C) at <75% RH
  • Storage Environment: -4°F to 140°F (-20°C to 60°C) at <80% RH (with battery removed)
  • Temperature Coefficient: 0.1 x (specified accuracy) per °C (0°C to 18°C, 28°C to 50°C), per 1.8°F (32°F to 64°F, 82°F to 122°F)
  • Weight: 4.03 lbs (1.83 kg)
  • » Water Resistant: Designed to IP54
  • Sensor Type: Infrared (IR)
  • Sensor Life: 10 years typical
  • Sensitivity Levels: High, medium, low, turbo (selectable)
  • Maximum Sensitivity: 0.03 oz/yr (1g/a), stationary; 0.1 oz/yr (3g/a), in motion
  • Detection Feedback: Red tip LED, LCD bar graph, LCD digits, beeper
  • Refrigerants: HFC, HCFC, CFC, HFOs, and blends
  • Response Time: <1 seconds typical
  • Recovery Time: <5 seconds typical
  • Battery Type: 3.7 VDC (nominal) 2550mAh, non-replaceable
  • Charge Time: 6 hours typical with included charger.
  • Battery Life: 10 hours typical, backlight off
  • Auto Power Off: 10 minutes without detection or button press
  • Operating Environment: 32°F to 104°F (0°C to 40°C); < 75% RH (non-condensing)
  • Storage Temperature: -4°F to 140°F (-20°C to 60°C); < 80% RH
  • Water Resistance: Designed to IP54
  • Display: 2 x 10000 count LCD with status messages
  • Backlight: Blue color
  • Measurement rate: 3.3 times per second, nominal
  • Input Port Pressure Sensor Range: -30” Hg to 600 psig
  • Output Port Pressure Sensor Range: - 30” Hg to 600 psig
  • High Pressure Cutoff: 558 psig, nominal
  • Resolution and Units: 1 psig (1” Hg), 0.05 bar (2 cmHg), 0.01 Mpa (2 cmHg), 5 Kpa (2 cmHg)
  • Pressure Sensor Accuracy: ± 0.5 “ Hg (Vacuum) ± (0.6% of reading +2 psig)
  • Final Recovery Vacuum: 14.9” Hg
  • Compressor: Twin cylinder reciprocating (oil-less)
  • DC Motor: 1 HP (variable smart speed)
  • Max Current Draw: 12.0 AAC
  • Valve: Single dual-route ball valve
  • Nominal Flow Rate: 8 CFM (VP85), 5 CFM (VP55)
  • Oil Capacity: 8 oz (237 mL)
  • Oil Compatibility: Vacuum Pump Oil
  • Oil Backlight: Blue LED
  • Oil Drain: Ball valve
  • Port Sizes: (1) 1/4” (8 mm), (2) 3/8” (10 mm), (1) 1/2” (15 mm)
  • Compressor: Rotary vane, two stage
  • Motor: 3/4 HP brushless DC
  • RPM: 2500 (VP85)
  • Power Source: 207 to 253 VAC @ 50/60 Hz (VP85),)
  • Operating Environment: 30°F to 122°F (-1.1°C to 50°C)
  • Over range: "OL" is displayed
  • Maximum load: 252 lbs (114 kg)
  • Auto power off: 30 minutes of inactivity (no change in weight or buttons pressed) 
  • Backlight: Blue, turns off in 60 seconds if no buttons are pressed
  • Accuracy:
    • ±0.03%rdg + 0.25 oz (10 g), 0 to 66 lbs (0 to 30 kg)
    • ±0.05%rdg + 0.25 oz (10 g), 66 to 252 lbs (30 to 114 kg)
  • Resolution and Units:
    • lb oz (0.25 oz), lb (0.1 lb), oz (0.1 oz),
    • kg g (10 g), kg (0.1 kg), g (10 g)
  • Temperature coefficient: 0.1 x (specified accuracy) per °F
  • Wireless Range: 100 feet (30 meters)
  • Radio Frequency: 2400 MHz
  • AC current (A):600A ±(2%+10)
  • DC current (A): 600A
  • AC voltage frequency(Hz):10Hz~10kHz±(1%+5)
  • Resistance (Ω): 60MΩ ±(0.8%+2)
  • Frequency (Hz):10Hz~10MHz ±(0.1%+4)
  • AC current frequency (Hz): 50Hz~100Hz±(1%+5)
  • AC voltage (V): 600V ±(0.8%+5)
  • DC voltage (A): 600V ±(0.5%+2)
  • Capacitance (F): 60mF ±(4%+5)
  • Volume: 20 L
  • Pressure: 200 bar
  • According to system refrigerant type