Product Name: Eco-friendly Air Handling Unit Trainer

Model Name: YESR-4000ECO

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) : nipple clamp type

• 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




Accessories

• Banana jack red 20EA, black 20EA,

• High, low pressure hose, with power cable

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