- This heat pump for producing hot and cold water using waste water heat from bathrooms or factories causes
   no environmental pollution and is an energy-saving system actively recommended nationwide for reducing greenhouse
   gases.
- This heat pump system is very economical compared with existing oil or city gas. (about a 70~50% reduction)
- This heat pump is a safe system that is free from the danger of inflammable matters exploding, such as diesel oil and
   petroleum, and gas.
- This heat pump system is very economical because it uses waste heat.
- This heat pump system has a very short payback period compared with other systems.

1) Places of application – Saunas and factories, among others (can be applied to all places discharging waste water
    needing hot water)
2) Convenience – PCB controlling system
3) Maximize safety and efficiency
    (1)Increase longevity through using STS vaporizers or copper vaporizers (applied for a patent)
    (2) Minimize welded parts of STS vaporizers or bronze vaporizers
    (3) Raise efficiency, prevent clogging and adhesion of foreign substances and make cleaning through manholes easier
    (4) Inverter systems
4) Remote monitoring system is possible by connecting Heat Pump and computers
5) Accumulated technology based on rich experience gained in the course of working for about 2,300 companies clients
    across the nation

1) Choose between copper and stainless steel for a vaporizer according to conditions of the construction site
   (1) Copper – Used for places free from foreign substances, such as tap water
        (advantage: thermal conduction rate improved)
   2) Stainless steel – Used for places using underground water containing a little salt and lime powder
        (advantage: highly durable)
2) The heat exchanger, heat pipe, prevents corrosion and damage to vaporizers, which are caused by sludge, through
     using spiral-typed copper pipes and stainless steel pipes developed by the company.
3) Maximize the effect of sludge removal using air bubbles through installing air pumps to the lower part of the waste
     water tank
4) The vaporizer with open structure makes A/S and pipe cleaning easy.
5) Can maximize collection of low-temperature waste water heat (up to 5℃)

1) Brazing plate-type heat exchanger / strengthen durability through using high-pressure STS 316

   * Advantages
   - Stack sheet copper, the material of heat plates, (stainless steel) and weld one by one sequentially, put then into
     a vacuum furnace, raise the temperature and perform the welding after melting sheet copper
   - As welded is performed equally on the whole area of the heat plates, the heat efficiency is high and there are no leaks.

1) PCB control method
   - Function of switch controll
   - Contact points of PCB, ON/OFF function
   - Function of data input
   - Adopt inverter control method: Can maintain temperature of water discharge equally

2) Function of automatic controll
   - Function of setting production temperature
   - Function of calculating accumulated operation time
   - Function of setting operation/stopping time
   - Mark high/ low pressure
   - Function of marking temperature of stored waste water
   - Function of setting operation days
   - Function for raising the alarm about malfunctioning operation