swimming pool

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S-Swimming pool products

S series is part of the YUELLY product line, which indicates the swimming pool and SPA heat pump


  • Swimming pool heat pump can be used for heating or cooling swimming pool, spa or some other open water system.
  • Water system pressure should be less than 3 bar.
  • (Cannot be used for close water system such as air conditioning, ground source heating and so on.)

Product Advantages:

Characteristics -YUELLY HEAT PUMPS

High efficiency

  • Adopt heat pump for heating and the energy comes from ambient air. So its COP can reach 4.0~6.0. 70% can be saved compared with normal electrical heater.


  • Water and electricity are completely separate. ECO friendly gas, no fire, no electricity leakage, safer than fuel burner or electrical heater.

Environmentally friendly

  • Adopt R407C, R410a, R134a, R22 as refrigerant, according to the requirements of EU Montreal Protocol.

Corrosion prevention

  • The condenser uses titanium metal, its corrosion resistance is 4-5 times of ordinary copper tube, the corrosion ability of the unit is significantly improved, while the effective way to prevent fluoride leakage. So the medium of heat exchange can also contain seawater, mild industrial water, etc.

Intelligent defrosting

  • By means of both mechanical and automatic control. Defrosting can be operated in a shorter time to avoid severe attenuation of heating capacity in winter and not run when not necessary.

Various protective measures

  • Lack-phase and anti-phase protection
  • Self memory function when power off
  • Overpressure protection
  • Leakage refrigerant protection
  • Water protection for unit
  • Overcurrent protection
  • Temperature over protection

advanced control system

  • Displaying operating and trouble status.
  • Checking real-time operation parameters etc.
  • The cable length between controller and the unit can be up to 100m for flexible installation.
  • Keep balance running of compressor


  • YUELLY products and the world famous brand compressor manufacturers
  • (COPELAND\MISUBISHI\DAIKIN\PANASONIC\SANYO\GMCC) have good cooperation, so as to ensure the high quality of the machine.