SiENBE12-713
Control Specification
Function and Control
89
3.6
Freeze-up Protection Control
Outline
During cooling operation, the signals being sent from the indoor unit allow the operating
frequency limitation and then prevent freezing of the indoor heat exchanger.
Detail
Conditions for Start Controlling
Judge the controlling start with the indoor heat exchanger temperature after 2 sec from
operation start and after 30 sec from changing number of operation room.
Control in Each Zone
The zone is determined by the commands from indoor units.
In drooping zone, the frequency decreases 2Hz/20 seconds.
3.7
Heating Peak-cut Control
Outline
Heat Pump Only
During heating operation, the signals being sent form 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 min from
operation start and after A sec from changing number of operation room.
Control in Each Zone
The maximum value of heat exchange intermediate temperature of each indoor unit controls the
following (excluding stopped rooms).
In drooping zone, the frequency decreases 6Hz/40 seconds.
In up zone, the frequency increases 2Hz/60 seconds.
(R4561)
Ret
u
rn from
s
top
Re
s
et zone
He
a
t exch
a
nger
thermi
s
tor temper
a
t
u
re
Up zone
Keep zone
Drooping zone
S
top zone
0°C
3
°C
5°C
7°C
1
3
°C
A
30
2
When increase
When decrease
(R60
3
4)
Re
s
et zone
He
a
t exch
a
nger
thermi
s
tor
temper
a
t
u
re
Up zone
Keep zone
Drooping zone
S
top zone
50°C
52°C
54°C
55°C
65°C
Содержание FTKS20D3VMW
Страница 11: ...Introduction SiENBE12 713 x...
Страница 47: ...Specifications SiENBE12 713 36 Specifications...
Страница 113: ...Control Specification SiENBE12 713 102 Function and Control...
Страница 122: ...SiENBE12 713 Instruction System Configuration 111 Names of Parts FTK X S 20 25 35 C Indoor Unit...
Страница 235: ...Instruction SiENBE12 713 224 System Configuration...
Страница 297: ...Check SiENBE12 713 286 Service Diagnosis...
Страница 316: ...SiENBE12 713 Outdoor Unit Removal Procedure 305 Step Procedure Points...
Страница 330: ...SiENBE12 713 Others 319 Part 8 Others 1 Others 320 1 1 Test Run from the Remote Control 320 1 2 Jumper Settings 321...