Daikin RXQ18P7W1BA Specifications Page 22

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VRV SERIES (DAIKIN PID Controls)
ON/OFF controlled air conditioner (2.5HP)
Time
Cooling
Suction air temp.
Note: the graph shows the data, measured in a test room assuming actual heating load.
The thermostat can control stable room
temperature at ± 0.5°C from set point.
Inverter AC
Non inverter AC
Set point
Smaller
temperature
difference
Large temperature
difference
Repeats hot and cold cycles
Keeps temperature stable
Start-up time reduced
by about 1/3
Slow start-up
Frequency
30 116 30+on 116+on
Capacity
50%
60%
55%
65%
An electronic expansion valve, using PID control, continuously adjusts the refrigerant volume in respond
to load variations of the indoor units. The VRV system thus maintains comfortable room temperatures at a
virtually constant level, without the temperature variations typical of conventional ON/OFF control systems.
Smart Control Brings Comfort
9
the technique adopted by Daikin, of regulating the capacity using
multiple compressors clearly results in minimum switching losses and
power surges because of the overlap in capacity and frequency
9
since Daikin utilises small 5HP inverter compressors, the influence of
harmonics is less than that generated by a single large compressor
9
the use of multiple compressors by Daikin also ensures a 50 %
standby facility
9
smaller compressors are cheaper and faster to replace
Less Frequent Start/Stop Cycle
The refrigerant recovery function enables all expansion valves to be opened. In this way the refrigerant can
be drained from the piping system.
Refrigerant Recovery Function
p. 22
Environmental Consciousness
7
8
9
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