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3.2 Outdoor frequency control
3.2.2 Defination of high-efficiency operation and its frequency control
In order to meet the cooling request at high ambient temperature and the heating request at low ambient
temperature, we set the high-efficiency operation.
Entering condition: cooling mode, Tao
≥
33
℃
(E), heating mode, Tao
≤
5
℃
(E).
3.3 Electronic expansion valve (EEV) control
3.3.1 Electronic characteristic
Max. open angle
500 pulse
Driving speed
PPS
Pipe system for 5U34HS1ERA
Co
m
p-
re
sso
r
Dis
ch
ar
ge
te
m
p.
se
nso
r
O
il
separa
tor
C
ap
illa
ry
tu
be
Ø2
.7
*Ø1
.0*140
0
H
igh pr
es
sur
e
sw
tich
4-w
ay
v
alv
e
P
ipe s
ens
or
To
ci
S
uc
tion t
emp
.
se
nso
r
Low
pres
sure
sw
itch
A
ccum
ula
to
r
G
as
stop
valve
Out
do
or
hea
t
ex
chan
ger
te
m
p.
se
ns
or
FAN
-OU
T
Out
do
or
ambi
en
t
te
mp
erat
ure
sens
or
D
efr
os
t
se
ns
or
D
is
tri
but
or
Str
ain
er
Che
ck va
lv
e
Re
ce
iv
er
Li
qui
d s
to
p v
av
le
5/
8
3/
8
S
tra
iner
U
nit
A
liqui
d pi
pe
te
mp
. s
en
sor
Indo
or uni
t A
S
tra
iner
U
nit
B
liqui
d pi
pe
te
mp
. s
en
sor
Indo
or uni
t B
S
tra
iner
U
ni
t C
liqui
d pi
pe
tem
p.
s
ens
or
Indo
or uni
t C
S
tra
iner
U
ni
t D
liqui
d pi
pe
tem
p.
s
ens
or
Indo
or uni
t D
Un
it A g
as p
ipe
te
mp
. s
en
so
r
Un
it B g
as p
ipe
te
mp
. s
en
so
r
U
ni
t C
g
as
pi
pe t
em
p.
s
ens
or
U
ni
t D
g
as
pi
pe t
em
p.
s
ens
or
Indoor uni
t A
Indoor uni
t B
Indoor uni
t C
Indoor uni
t D
4-
w
ay v
alv
e co
il:
OFF
ON
Re
frig
er
an
t flo
w
in
c
oo
lin
g
Re
frig
er
an
t flo
w
in
he
atin
g
Indo
or uni
t E
U
nit
E
liqui
d pi
pe
te
mp
. s
en
sor
S
tra
iner
Un
it E g
as p
ipe
te
mp
. s
en
so
r
Indoor uni
t E
FA
N
-IN
In
door
am
bi
ent
te
mperat
ure
sens
or
In
do
or
heat
ex
changer
tem
p.
sens
or
-
79
-
EEV A
E
EV B
EEV C
EEV D
E
EV E
E
E
V
O
3.2.1 Compressor running frequency range: 20~95RPS
