MUNDO CLIMA H9A Series, Installation And Owner'S Manual

Page: 95 / 336

6 . Place f laring t ool on t o t he f or m.
7 . Turn t he handle o f t he f laring t ool clockwise
un t il t he pipe is f ully f lared .
8 . Re m ove t he f laring t ool and f lare f or m , t hen
inspec t t he end o f t he pipe f or cracks and
even f laring .
S te p 4: Connect p i p es
When connec t ing re f rigeran t pipes , b e care f ul
no t t o use excessive t orque or t o de f or m t he
piping in any way . You should firs t connec t t he
low-pressure pipe , t hen t he high-pressure pipe .
MI N IMUM BEND RAD IU S
When b ending connec t ive re f rigeran t piping ,
t he m ini m u m b ending radius is 1 0 c m. See F i g
6.6 .
≥10cm (4in) Radius
TORQ U E REQ UI RE M ENTS
O uter D iameter of P i p e (mm) T i gh tenin g T or
RVF /tDN
A dd . T i gh tenin g T or
RVF /tDN
Ø 6 . 35 (Ø 0 . 25”) 1 ,500 ( 11l b s ft ) 1 ,600 ( 11 . 8 l b s ft )
Ø 9 . 52 (Ø 0 . 375”) 2,500 ( 1 8 . 4 l b s ft ) 2,600 ( 1 9 . 1 8 l b s ft )
Ø 1 2 . 7 ( Ø 0 . 5”) 3,500 LBsFT 3,600 LBsFT
Ø 1 6 ( Ø 0 . 63”) 4,500 LBsFT 4,700 LBsFT
DO NOT U SE EX C ESS I VE TORQ U E
Excessive f orce can
b reak t he nu t or da m age t he re f rigeran t piping . You m us t no t exceed t orque
require m en t s shown in t he t a b le a b ove .
Instructions for Connectin g P i p in g to
Indoor Unit
1 . Align t he cen t er o f t he t wo pipes t ha t you will
connec t. See
F i g. 6.7
.
Indoor unit tubing Flare nut Pipe
2 . Tigh t en t he f lare nu t as t igh t ly as possi b le b y
hand .
3 . Using a spanner , grip t he nu t on t he uni t
t u b ing .
4 . While f ir m ly gripping t he nu t on t he uni t
t u b ing , use a t orque wrench t o t igh t en t he
f lare nu t according t o t he t orque values in t he
T or q ue R e q uirements
t a b le b elow . L oosen
t he f laring nu t sligh t ly , t hen t igh t en again .
R
efri
g
erant
P
i
p
in
g
Connection
95
Fig. 6.6
Fig. 6.8
Fig. 6.7
This unit must be installed by a professional according RD 795/2010, RD 1027/2007 and RD 238/213