Contact Us




Add:No.88,Huancheng East Road(east),Dongyang City,Zhejiang,China

  • Hot Tags: transport refrigeration unitsFrozen Refrigeration UnitsFresh Refrigeration Unitsrefrigerated truck bodiesrefrigerator truck
  • Home > News > Content
    Fresh Refrigeration Units Low Temperature Environment Oct 27, 2017

    Fresh Refrigeration Units Low temperature environment

    Operation procedure of chiller

    ① before the start of the preparatory work

    1) Verify that the unit and controller are powered on.

    2) confirm the cooling tower fan, cooling water pump, cold water pump are open.

    3) Make sure that the end fan coil units are energized.

    ② start

    1) Press the status key on the keyboard, and then switch the unit ON / OFF switch to the position where the switch is turned on.

    2) The unit will make a self-test, after a few seconds, a compressor starts, after the load increases after another compressor starts.

    3) Once the unit is started, all operations are not automatic. The unit starts automatically according to the change of the cold load (chilled water supply and return water temperature).

    ③ normal operation

    1) The unit will run normally and the controller will monitor the oil pressure, motor current and other parameters of the system. If any problems occur, the control system will automatically take corresponding measures to protect the unit and display the fault information on the unit screen. (See Installation, Operation and Maintenance Manual for details)

    2) During every 24-hour operation period, the crew should record the operating conditions at a fixed time interval.

    ④ downtime

    1) You can stop the unit by switching the unit ON / OFF toggle switch to the disconnected position below the keyboard.

    2) To prevent damage, do not cut off the unit's power even when the unit is shut down.

    3, fan, pump operation

    ① cooling tower fan, cooling water pump, cold water pump are independent control, power supply should be confirmed before the normal power, no reverse, no phase.

    ② Before opening the pump, make sure that the valves in the pipeline are open.

    Air Cooled Low Temperature Chiller - Features

    Low-temperature chiller is designed for special low-temperature environment of the special chiller, its super-cooling capacity for hotels, restaurants, supermarkets and other commercial sites


    Food preservation, large cold storage of meat, seafood frozen, frozen, ice-making areas, food processing refrigeration / refrigeration, pharmaceutical, chemical and other low-temperature environment to provide a reliable guarantee.

    1. Complete product range, including high temperature (water temperature -5 ℃), the temperature (water temperature -10 ℃), low temperature (water temperature -15 ℃) three series.

    2. Structure highly optimized, the use of heat exchanger board to support the body, simple structure, compact and practical.

    3. High-quality screw compressor + the best quality and high efficiency heat exchanger perfect combination, energy efficiency ratio of up to 4.5.

    4. Four or no-stage capacity control, with the load changes.