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Weal the pipe end with adhesive tape or
the stopper to increase the resistance3 fill
up the pipe with nitrogen5
CR9E
taping
Snly nitrogen gas can
be used
brazing
Tlease don.t let the pipe and the parts in the unit collide each other5
Xhe connection between outdoor liquid pipe and the distributing pipe is flared type5 Tlease expand
the pipe with the special tool for V;87F after installing the expanding nut5 Gut if the projecting pipe
length has been adjusted with the copper pipe gauge3 you can use the original tool to expand the pipe5
Wince the unit is with V;87F3 the expanding oil is ester oil3 not the mineral oil5
Xhe outdoor gas pipe and the refrigerant distributing pipe3 as well the refrigerant distributing pipe and the
branch pipe should be welded with hard solder5
[eld the pipe at the same time charge the nitrogen5 Sr it will cause a number of impurity /a film of
oxidation0 to clog the capillary and the expansion valve3 further cause the deadly failure5
F
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V
SVTZ
\TY[
_T[X
WXT]
W[T^^
_TW
WYTX
W\T\
W_T]
Jxpanding pipeAF/mm0
G
\TY[
_T[X
WXT]
W[T^^
when it is hard pipe
V
4
VT[
WTV
4
WT[
pipe outer
diameter
Trojecting length of pipe to be expandedAG/mm0
pipe outer
diameter special tool for
V;87F
the former
tool
[hen connecting the pipes3 close the valves fully5
Trotect the pipe end against the water3 impurity into the pipes /welding after being flat3 or being sealed
with adhesive tape05
Gend the pipe as large semi4diameter as possible/over ; times of the pipe diameter05
[hen connecting the expanding pipe3 fasten the pipes with double4spanner5 Xhe torque refers to the
former information5
Nlonqs`ms2
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Содержание MRV II AV48NMVERA
Страница 112: ...112 5 Wiring connection among units ...