Air conditioner set control system and operation method thereof

Abstract

The invention relates to a unit control system for air-conditioner, comprising upper unit consisted of more than one inside machine; more than one lower unit consisted of one main inside machine and more than one assistant inside machine, which belongs to the upper unit; and outside machine controller part, by which cycling cool medium is controlled according to control demand received by inside machine, and when the running rate according to the control demand is not up to the judgment reference value of smallest load, main inside machine is controlled. The running method of unit control system of air-conditioner is that first, outside machine receives control demand from appointed inside machine; second, when the running rate according to control demand is not up to the reference value it is judged as the smallest load; third, when the demand signal is judged as the smallest load, inside machine and one main inside machine run together according to the control demand, here inside machine is controlled as control object. The invention prevents air-conditioner running at the smallest load and energy waste is smallest.

Description

technical field [0001] The present invention belongs to the field of air conditioning, and particularly relates to a group control system of an air conditioner and its operation method. A lower group is formed in the reference group, and a main indoor unit with a capacity exceeding the minimum load reference value is equipped in the lower group. The other indoor units with the minimum load operate along with them when they are running, and also keep running when the corresponding indoor unit is stopped, preventing the air conditioner system from being driven with the minimum load. Background technique [0002] One-to-many air conditioners include multiple indoor units installed in each room; multiple indoor units are connected together, and are composed of an outdoor unit that distributes the amount of refrigerant to each indoor unit and controls the circulation of refrigerant according to control instructions. [0003] Such a one-to-many air conditioner can reduce the space...

AI Technical Summary

Problems solved by technology

[0009] However, in such a conventional group control method, all the indoor units in the same group are operated or stopped at the same time, and the indoor units that do not need to be controlled are also operated or stopped, so the efficiency of energy consumption is low.

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