A) the control of air conditioning units

(A) monitoring functions:

(1) monitor and record fan running, return air temperature, fan failure, blocking filters and antifreeze alarm.

(2) manually or by default the procedure start and stop time fan.

(3) fan with wind and water valve control valve chain.

(4) confirmed that fan running, control of water valves, to ensure that the temperature in the set range.

(5) in the winter, when the antifreeze alarm, stop fans and open the water valve to prevent coil freezing.

(6) in accordance with outdoor temperature and indoor temperature comparison, the new return air control valve opening ratio, so as to achieve energy-saving effect.

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