Indoor Unit (SkyAir Models)
SiENBE18-621
100
Function
8.3
Function Details
Thermostat
Control
Freeze-up
Protection
Control
The thermostat turns OFF under the following temperature conditions to prevent freezing of the
indoor unit heat exchanger.
"
The motorized valve is controlled to maintain the indoor unit heat exchanger temperature
(Te) above 0°C.
"
The outdoor unit fan speed is reduced to prevent freeze-up protection control from activating
during cooling operation under low outside air temperature. (For details, see the section on
cooling operation under low outside air temperature.)
S
et temper
a
t
u
re
Initi
a
l
s
etting
Cooling
thermo
s
t
a
t ON
Cooling
thermo
s
t
a
t OFF
He
a
ting
thermo
s
t
a
t OFF
Cool/He
a
t A
u
tom
a
tic
He
a
ting
Cooling
Di
s
pl
a
y
S
etting
S
etting
Di
s
pl
a
y
Di
s
pl
a
y
He
a
ting
thermo
s
t
a
t ON
O
u
tdoor
u
nit he
a
t exch
a
nger temper
a
t
u
re
(Te)
Freeze prevention control
Re
s
et
a
fter 10 contin
u
o
us
min
u
te
s
Thermo
s
t
a
t OFF
a
fter
40 c
u
m
u
l
a
tive min
u
te
s
Thermo
s
tet OFF
a
fter 1 contin
u
o
us
min
u
te
s
from
8
min.
a
fter
s
t
a
rting (FHQ only)
Thermo
s
t
a
t OFF
a
fter
1 contin
u
o
us
min
u
te
s
from
8
min.
a
fter
s
t
a
rting (FFQ only)
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...
