Main p
art explanation:
No
.
M
ai
n
P
a
rt Nam
e
S
p
eci
fi
cati
o
n
F
o
r w
h
at p
u
rp
o
se?
1
H
ea
te
r
220V
, 35W
Heat
up t
he c
om
pres
so
r w
hen s
ys
tem
s
tops
to
av
oi
d l
iqui
d c
om
pres
si
ng and
li
qui
d f
lood-bac
k
2
C
om
pres
so
r
dc
in
ve
rt
er
Dri
ve t
he s
ys
tem
to
real
iz
e t
he ref
rig
er
ant
c
irc
ul
at
io
n
3
T
d s
ens
or
50
K
@
80
@
F
or t
arget
S
H
c
ont
rol
and hi
gh di
sc
harge t
em
prat
ure prot
ec
tion
4
H
P s
w
itc
h
4.
5 /
3.
7M
pa
Cut
of
f t
he s
ys
tem
w
hen di
sc
harge pre
ss
ure i
s t
oo hi
gh t
o prot
ec
t s
ys
tem
5
4-W
A
Y
v
al
ve
/
Cool
ing /
heat
ing s
w
tic
hi
ng
6
T
oci
s
ens
or
10
K
@
25
@
F
or t
arget
s
uper he
at
ing c
ont
rol
w
hen
heat
in
g
7
T
c s
ens
or
10
K
@
25
@
F
or hi
gh pres
su
re/
f
requenc
y/
out
door f
an s
peed c
ont
rol
w
hen c
ool
in
g
8
T
ao
s
ens
or
23
K
@
25
@
F
or t
arget
f
requency
range and heat
er c
ont
rol
9
T
e s
ens
or
10
K
@
25
@
F
or def
ros
t operat
ion and l
ow
pres
su
re
c
ont
rol
w
hen heat
in
g
10
P
M
V
s
1.
5m
m
, 500P
LS
Ref
rigerant
di
st
ribu
tioi
n and t
arget
S
H
(c
ool
ing) and S
C
(h
eat
in
g) c
ont
rol
11
LP
s
w
itc
h
0.
05 /
0.
15M
pa
Cut
of
f t
he s
ys
tem
w
hen s
uc
tion pres
su
re i
s t
oo l
ow
or s
ys
tem
s
eri
ous
leak
ag
e t
o prot
ec
t s
ys
tem
12
A
ccum
ul
at
or
1.
5L
S
eparat
e t
he l
iqui
d ref
rigerant
and gas
ref
rigerant
in
s
uc
tion l
ine t
o av
oi
d l
iq
ui
d f
lood-bac
k
13
T
s s
ens
or
10
K
@
25
@
T
o c
al
cul
at
e t
he t
arget
S
H
and S
C
, an
d c
ont
rol
the s
tart
u
p of
the c
om
pres
so
r
14
T
c2
10
K
@
25
@
T
o c
al
cul
at
e t
he re
al
s
uper heat
ing v
al
ue t
oget
her w
ith
T
out
to
operat
e t
he PM
V
s,
f
or t
arget
co
m
pres
so
r f
reque
nc
y c
ont
rol
and l
ow
pres
su
re prot
ec
tio
n w
hen c
ool
in
g
15
T
m
10
K
@
25
@
T
o c
al
cul
at
e t
he re
al
s
uper c
ool
ing v
al
ue t
oget
her w
ith
T
in t
o operat
e t
he P
M
V
s,
f
or t
arget
c
om
pres
so
r
fr
equenc
y c
ont
rol
a
nd hi
gh pres
su
re cont
rol
w
hen heat
in
g
16
T
c1
10
K
@
25
@
T
o c
al
cul
at
e t
he re
al
s
uper heat
ing v
al
ue t
oget
her w
ith
T
in t
o operat
e t
he P
M
V
s
17
T
ai
23
K
@
25
@
T
o c
al
cul
at
e t
he t
em
perat
ure di
ff
erence bet
w
een t
he i
nl
et
and out
le
t of
the i
ndoor uni
t t
o c
ont
ro
l t
he
ta
rget
rrequenc
y an
d T
H
E
R
M
O
. O
N
o
r O
F
F
.
-46-
Commercial Air Conditioner
Model: AU18
/22
2XFERA
AS072/092/122XVERA