Product Name: Constant Temperature and Humidification, 

                  Air-Conditioner Experiment Trainer

Model Name: YESR-4000

Technical Description

• It is able to experiment for 4 strength type of ventilation system and air 

 conditioning system by heat pump.

• Consist of auxiliary heater with heat pump and humidification device is usable 

 for both cold and hot water.

• Humidification device has a sprinkler system that makes air-acrossing is available, 

 can evaluate and compare its performance and can adjust its damper of 

 intake/exhaust.

• Temperature of hot and cold water for humidification can be adjustable by user.

• Whole equipment is designed to check the operation from the outdoor and to 

 indoor temperature is adjustable.

• Whole equipment has auto control system by the organic temperature 

 and humidity

• Sequence panel is consist of automatic control of graphic device, and it is able to 

 experiment and train the controls of temperature, pressure and humidity 

 adjustment by connecting circuit to power.

• It is able to protect the overload and operate the pressure switch, 

 alarm bell and a pilot lamp while problem occurs in thermo-hygrostat.

• Operating Control(ON,OFF) of monitoring and machine using data saving Function 

 and electric control board in the PC via YESR-DAQ (optional accessory)

• Fault insertion & simulation, Data acquisition and P-I diagram drawing via 

 YESR-DAQ (optional accessory)

• Manual with theory and experiments

Machine

• Compressor : 1/2HP, single-phase 220V, Control Box

• Condenser : Air-cooled type

• Heat exchanger for cool and warm water (2EA)

• Evaporator for heat pump : pin, Tube Air-cooled type (welding type)

• Liquid receiver : 1/2HP

• Accumulator : 1/2HP

• Expansion Valve(2EA): manual expansion valve

• Electronic Valve (4EA): : 3/8" nut clamp type or welding type

• Filter dryer : 3/8" nut clamp type or welding type

• Manometer: High Pressure, Low Pressure

• Charging nipple : Attached to a nipple for Charging

• Sight Glass : welding type or nut clamp type

• Transportation pump(３EA) : 220V, 60Hz,

• Sealing valve : 220V, 60Hz

• Exhaust valve : 220V, 60Hz

• Humidifier device: spray type and atmospheric crossing type

• High and Low pressure switch : LPS, HPS, VOLT, AMPER METER

• Temperature Sensor : 14EA

• Pressure Sensor : 4EA

• Humadity Sensor : 1EA




Optional

• HVAC with DAC[Model name : YESR-DAQ]

• Sequence Control Unit [Model Name : YESR-SEC]

• Refrigerant : R-22, R-134a, R-401a, R-404a, R-600a