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Control Specification
SiENBE04-512A
56
Function and Control
3.7
Heating Peak-cut Control
Outline
Heat Pump Only
During heating operation, the signals being sent from the indoor unit allow the operating
frequency limitation and prevent abnormal high pressure. (The signal from the indoor unit must
be divided as follows.)
Detail
Conditions for Start Controlling
Judge the controlling start with the indoor heat exchanger temperature after 2 sec. from
operation start.
Control in Each Zone
The heat exchange intermediate temperature of indoor unit controls the following.
3.8
Fan Control
Outline
Fan control is carried out according to the following priority.
1. Fan control when defrosting
2. Fan OFF delay when stopped
3. ON/OFF control when cooling operation
4. Tap control when drooping function is working
5. Fan control when forced operation
6. Fan control in low noise mode
7. Fan control during heating operation
8. Fan control in the quiet mode
9. Fan control in the powerful mode
10. Fan control for pressure difference upkeep
Detail
Fan OFF Control when Stopped
Fan OFF delay for 60 seconds must be made when the compressor is stopped.
3.9
Liquid Compression Protection Function 2
Outline
In order to obtain the dependability of the compressor, the compressor must be stopped
according to the conditions of the temperature of the outdoor air and outdoor heat exchanger.
Detail
Operation stop depending on the outdoor air temperature
Compressor operation turns OFF under the conditions that the system is in cooling operation
and outdoor air temperature is below –10°C (0°C for (A)RK(X)H, R(Y)N models).
He
a
t exch
a
nger
thermi
s
tor
temper
a
t
u
re
S
top zone 65°C
46°C
56°C
5
3
°C
51°C
Re
s
et zone
(R1
38
0)
Drooping zone
Up zone
Keep zone
SiENBE04-512A.book Page 56 Friday, October 5, 2007 1:49 PM
Summary of Contents for ARKH20CVMB7
Page 1: ...SiENBE04 512A Service Manual Inverter Pair Wall Mounted Type C Series D Series ...
Page 17: ...List of Functions SiENBE04 512A 8 List of Functions ...
Page 37: ...Specifications SiENBE04 512A 28 Specifications ...
Page 73: ...Control Specification SiENBE04 512A 64 Function and Control ...
Page 103: ...Instruction SiENBE04 512A 94 System Configuration ...
Page 147: ...Check SiENBE04 512A 138 Service Diagnosis ...
Page 225: ...Outdoor Unit RK X H C ARK X H C R Y N C SiENBE04 512A 216 Removal Procedure ...
Page 229: ...Others SiENBE04 512A 220 Others ...
Page 241: ...Wiring Diagrams SiENBE04 512A 232 Appendix ...