Basic Control
SiENBE18-621
66
Function
2.4
Cooling Operation Fan Control
In cooling operation with low outdoor air temperature, this control is used to provide the
adequate amount of circulation air with liquid pressure secured by high pressure control using
outdoor unit fan.
Furthermore, when outdoor temperature
≥
20°C, the compressor will run in Step 7 or higher.
When outdoor temperature
≥
18°C, it will run in Step 5 or higher.
When outdoor temperature
≥
12°C, it will run in Step 1 or higher.
8
50 rpm
715 rpm
5
8
0 rpm
445 rpm
3
60 rpm
2
8
5 rpm
400 rpm
250 rpm
0 rpm
M1F
8
15 rpm
6
8
0 rpm
545 rpm
410 rpm
3
25 rpm
250 rpm
0 rpm
0 rpm
0 rpm
M2F
S
TEP
3
S
TEP4
S
TEP5
S
TEP6
S
TEP7
S
TEP
8
S
TEP2
S
TEP1
S
TEP0
Cooling
F
a
n
S
tep
s
Upper limit of f
a
n
revol
u
tion
s
:
S
tep
8
Upper limit of o
u
tdoor
u
nit
f
a
n revol
u
tion
s
S
tep 7
-1
s
tep on
o
u
tdoor
u
nit f
a
n
+1
s
tep on
o
u
tdoor
u
nit f
a
n
Pc
<2.75MP
a
PI control
Pc
>
3
.24MP
a
L
a
p
s
e of 20
s
ec.
PI control
PI control
L
a
p
s
e of 20
s
ec.
Hold the
c
u
rrent
s
tep on
o
u
tdoor
u
nit f
a
n
Pc: HP pre
ssu
re
s
en
s
or detection v
a
l
u
e
Summary of Contents for BPMKS967B2B
Page 1: ...SiENBE18 621 E Series Service Manual Applied Models Super Multi Plus Heat Pump...
Page 12: ...SiENBE18 621 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 19: ...List of Functions SiENBE18 621 8 List of Functions...
Page 33: ...Specifications SiENBE18 621 22 Specifications...
Page 69: ...Refrigerant Flow for Each Operation Mode SiENBE18 621 58 Refrigerant Circuit...
Page 121: ...Indoor Unit SkyAir Models SiENBE18 621 110 Function...
Page 169: ...Instruction SiENBE18 621 158 System Configuration FTXS 20 25 35C Indoor Unit...
Page 371: ...Method of Replacing The Inverter s Power Transistors Modules SiENBE18 621 360 Troubleshooting...
Page 393: ...SiENBE18 621 vi Index...