Midea MAD020T1N1S1 Technical Manual page 48

MCAC-PDSM M-2013-04
pro ocess, it nee
 Ma ake sure the
 Ma ake sure the
 Fil l refrigerant
 Th he pipeline p
sh ould be con
 If o one way equ
ou tdoor units i
wh hether need
Outdoo
Outdoo
 Ins stall grease
 Th he suggested
elb bow and the
to the site con
Outd
liquid
 Wh hen the unit
ou tdoor unit is
ma aterials befo
 Wh hen welding
va lve before w
an d side pane
eds to charg ge nitrogen i
e right conne ecting pipe s
e outdoor un nit installation
and add ref frigerant and
pressure dro ps, compres
sidered duri ing the desig
uivalent leng gth is longer
is higher tha an the numb
to add the e extended co
R Relative posi
or unit installe ed level is hi
or unit installe ed level is low
traps (oil loo op) every 7.5
d pipeline si zes in the fo
e valve have counted. Th
ditions.
door diamete er of
d pipe (Inch )
90° B
3/8
1/2
5/8
3/4
7/8
1-1/8
leave the fa actory, it will
s filled with n nitrogen gas
ore connect t the indoor u
g the copper pipe with th
welding. Duri ing welding,
el of unit.
Midea a Precision AC
nto the pipe eline for prot
size.
n height of u unit pipeline
d add refrige erant oil of u
ssor oil retu rn, noise red
gn and cons struction pro
r than 30m, o or the vertic
berical show ed in followi
omponents b before instal
ition
gher than ind door unit
wer than ind door unit
5 meters of the all vertic
ollowing tab le are equiv
he installer w will confirm w
Equiva alent length (
Bend 45° B Bend
0.2 21 0 0.1
0.2 24 0. .12
0.2 27 0. .15
0. .3 0. .18
0.4 44 0. .24
0.5 56 0.3 0
has a smal l amount of
s to stay the pressure, a
unit and outd door unit at s
he indoor an nd outdoor u
pay attentio on to do not
Technical Ma anual-Down D
ection.
installation. .
unit pipeline installation.
duction and vibration re
ocesses.
al height de efference of
ng table, the en it needs
lation.
Value e
Max. 2 20m
Max. -5 5m
cal height tu ubes.
alent length , the friction
whether it is s appropriate
(Meter)
T-sh hape three-w way
0.76
0.76
0.76
0.76
1.1
1.4
refrigerant i in the indoor
nd must be put off all th
site.
nit, pack the e wet cloth o
burn the lab bels near the
elivery Series
duction
indoor and
to confirm
n losses of
e according
r unit, the
hese
on the ball
e base pane el
47 7