;
zs
09:D=;9D5AF C=C9 7BAA97F=BA
\hen fasteningand loosingthe nut2
operate with double spanners2
because only one spanner cannot
execute firmly4
Nf threadingthe nut as not aiming
at the center2 the screw thread will
be damaged2 further it will cause
leakage4
spanner
spanner
connector
nut
Yo ensure the efficiency2 the pipe should be
as short as possible4
Iaub the refrigerant oil on the connector and
the flare nut4
\hen bendingthe pipe2 the bendingsemi3
diameter should be as large as possible
against the pipe being broken or bent4
\hen connectingthe pipe2 aim at the center
to thread the nut by hand and tighten it with
the double spanners4
Ion-t let the impurity such as sand2 water etc
into the pipe4
/=C9 7BAA97F=BA @9F<B8
y
74 \hen welding the connector with hard solder2 charge nitrogen into the pipe against oxidation4
Tr the oxygen film in the pipe will clog the capillary and the expansion valve2 even caue the
deathy accident4
84 Yhe refrigerant pipe should be clean4 Nf the water and the other impurity enter the pipe2
charge the nitrogen to clean the pipe4 Yhe nitrogen should flow under the pressure of about
64;Rpa and when charging the nitrogen2 stop up the end of the pipe by hand to enhance the
pressure in the pipe2 then loose the hand .meanwhile stop up the other end/4
94 Yhe pipinginstallation should be executed after the stop valves are closed4
:4 Gefore weldingthe valve and the pipes2 use the wet cloth to cool down the valve and the
pipes4
;4 \hen the connection pipe and the branch pipe need to be cut down2 please use the special
shears and cannot use the saw4
|
5GF=BAE =A C=C=A; =AEF5??5F=BA
y
/=C9 @5F9D=5? 5A8 EC97E E9?97F=BA
74 Ulease select the refrigerant pipe of the below material4
Raterial@ the phosphoric oxidize seamless copper pipe2 model@ H7886Y3758M .diameter is
over 7?46;/A H7886Y36.diameter is below 7;4>>/4
84 Yhickness and specs@
Honfirm the pipe thickness and specs accordingto the pipe selection method.the unit is with
W:76F2 if the pipe over 7?46; is 63type2 the pressure preservation will be bad2 thus it must be
758M type and over the min4 thickness4
94 Yhe branch pipe must be from Maier4
:4 \hen installingthe stop valve2 refer to the relative operation instruction4
;4 Yhe pipe installation should be in the allowable range4
<4 Yhe installation of branch pipe and gather pipe should be performed according to the relative
manual4
Nnstallation procedure
Summary of Contents for MRVII-S AU282FHERA
Page 2: ......
