SiBE12-816_D
Control Specification
Function and Control
90
4.9
Liquid Compression Protection Function
Outline
In order to obtain the dependability of the compressor, the compressor is stopped according to
the outdoor temperature and temperature of the outdoor heat exchanger.
Detail
Operation stops depending on the outdoor temperature
Compressor turns off under the conditions that the system is in cooling operation and outdoor
temperature is below 0°C.
4.10 Defrost Control
Outline
Defrosting is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor
heat exchanger temperature must be more than a certain value to finish.
Detail
Conditions for Starting Defrost
The starting conditions is determined with the outdoor temperature and the outdoor heat
exchanger temperature.
The system is in heating operation.
The compressor operates for 6 minutes.
More than 30 minutes of accumulated time pass since the start of the operation, or ending
the previous defrosting.
Conditions for Canceling Defrost
The target heat exchanger temperature as the canceling condition is selected in the range of
E
°C according to the outdoor temperature.
Frequency
Compressor
Four way valve
Fan
ON
OFF
ON
OFF
ON
OFF
0 Hz
Hz
5 sec.
450 pulse
350 pulse
450 pulse
Initial opening
0 pulse
pulse
140 pulse
Initial opening
PI control
5 sec.
30 sec.
60 sec.
530 sec.
120 sec.
pulse
(R12739)
Hz
40 class
70
86
350
160
4 ~ 12
50 class
48
70
300
200
4 ~ 15
(Hz)
(Hz)
(pulse)
(pulse)
(˚C)
Electronic expansion
valve opening
(operating room)
Electronic expansion
valve opening
(stop room)
A
C
D
B
A
C
D
E
B
Содержание 2MKS40G2V1B
Страница 12: ...SiBE12 816_D 1 List of Functions Part 1 List of Functions 1 Functions 2 1 1 Cooling Only 2 1 2 Heat Pump 5 ...
Страница 180: ...SA Indoor Unit FFQ Series SiBE12 816_D 169 Operation Manual 2 Start 5s 5s 5s 5s 5s End ...
Страница 290: ...Outdoor Unit SiBE12 816_D 279 Removal Procedure 15 Lift and remove the electrical box Step Procedure Points R12537 ...