Daikin RXYQ96PYDN, Руководство по обслуживанию

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Basic Control SiUS34-801A_b
194 VRVIII R-410A Heat Recovery 60Hz
function is used to exert PI control on the electronic expansion valve (Y1E or Y3E) so that the
evaporator outlet superheated degree (SH) will become constant.
Subcooling electronic expansion valve EVT control
In order to make the maximum use of the subcool heat exchanger, this function is used to exert PI
control on the electronic expansion valve (Y2E, Y5E or Y3E) so that the evaporator-side gas pipe
superheated degree (SH) will become constant.
Refrigerant charge electronic expansion valve EVJ control
While in automatic refrigerant charge mode, this function is used to exert PI control on the opening
degree of the electronic expansion valve (Y2E or Y4E) in response to outdoor temperature and
close the valve after the completion of refrigerant charge.
For normal operation, fully open this electronic expansion valve.
6.4 Step Control of Outdoor Unit Fans
Used to control the revolutions of outdoor unit fans in the steps listed in table below, according to condition changes.
*
Figures listed above are all those controlled while in standard mode, which vary when the system is set to high static
pressure or capacity precedence mode.
6.5 Outdoor Unit Fan Control in Cooling Operation
While in cooling operation, if the outdoor temperature is low, this mode provides high-pressure
control using the outdoor unit fan to retain appropriate liquid pressure, thus ensuring refrigerant
SH = Tg - Te SH : Evaporator outlet superheated degree (°F)
Tg : Suction pipe temperature (°F) detected by
the heat exchanger gas pipe thermistor
R2T.
Te : Low pressure equivalent saturated
temperature (°F)
SH = Tsh - Te SH: Evaporator outlet superheated degree (°F)
Tsh:Suction pipe temperature (°F) detected by
the subcool heat exchanger outlet
thermistor R5T
Te: Low pressure equivalent saturated
temperature (°F)
STEP No.
Fan revolutions (rpm)
Single type Multiple type
REYQ72P REYQ96P REYQ120P REYQ144PTJU REMQ72P REMQ96P REMQ120P
0 0 0 0 0 0 0 0
1 285/255 285/255 285/255 285/255 350 350 350
2 315/285 315/285 315/285 360/315 370 370 370
3 360/330 360/330 360/330 395/365 400 400 400
4 430/400 430/400 430/400 480/440 450 450 450
5 590/560 590/560 590/560 560/530 540 560 560
6 690/660 690/660 690/660 760/730 610 680 680
7 820/790 820/790 820/790 960/930 680 710 710
8 920/890 920/890 951/931 1155/1125 710 750 775
9 920/890 920/890 1020/990 1200/1170 796 821 870
Fan1/Fan2 Fan1/Fan2 Fan1/Fan2 Fan1/Fan2