(b) Outdoor unit side
1) Operating conditions :
2) Detail of operation
H
13
90(75)rps
30(40)rps
30(40)rps
than that after fuzzy calulation, the speed is kept to 30(40)rps. However, when the thermo becomes OFF, the
or 17
㪸)
㪹)
㪺)
speed is
Note (1) Values in ( ) are for outdoor air temperature at 17ºC.
(7) Heating low outdoor temperature protective control
(a) Operating conditions:
When the outdoor air temperature (TH2) is 4ºC or lower continues for 30 seconds while the
compressor command speed is other than 0 rps.
(b) Detail of operation:
The lower limit compressor command speed is change as shown in the gure below.
(c) Reset conditions:
When either of the following condition is satised.
1)
The outdoor air temperature (TH2) is higher than 6ºC.
2)
The compressor command speed is 0 rps.
(8) Compressor overheat protection
(a) Purpose:
It is designed to prevent deterioration of oil, burnout of motor coil and other trouble resulting from the
compressor overheat.
(b) Detail of operation
1) Speeds are controlled with temperature detected by the sensor mounted on the discharge pipe.
Discharge pipe temperature (˚C)
Lower limit
(4)
After lapse of 3 min. or over
(3)
After lapse of 3 min. or over
(3)
After lapse of 3 min. or over
(3)
4 rps
4 rps
(1)
0 rps
(Example) Fuzzy
95
105 115
Notes (1) When the discharge pipe temperature is in the range of
105~115ºC, the speed is reduced by 4 rps.
(2) When the discharge pipe temperature is raised and continues operation for 20 seconds without changing, then the speed is reduced again by 4 rps.
(3) If the discharge pipe temperature is in the range of
95~105 even when the compressor command speed is maintained for 3 minutes when the tem-
perature is in the range of 95~105ºC, the speed is raised by 1 rps and kept at that speed for 3 minutes. This process is repeated until the command
speed is reached.
To Next Page
Loading...
Need help?
General
