Haier MRV II AV48NMVERA, Руководство по установке

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:9
welding
adhesive tape
flat
[hen welding the valve and the pipes3 use the wet cloth to cool down the valve
and the pipes5
Xhe refrigerant pipe should be clean5 Xhe nitrogen should flow under the pressure of about 7579Qpa
and when charging the nitrogen3 stop up the end of the pipe by hand to enhance the pressure in the
pipe3 then loose the hand /meanwhile stop up the other end05
source valve
8st side
9nd side
hand
7579QTa
?8C8 Qd`j`fd sdrshmf
Hharge nitrogen/to test the leakage condition0
Xo prevent the nitrogen into outdoor system3 charge nitrogen to the indoor respectively5 Honnect the
connection pipe to checking joint of the indoor gas pipe stop valve3 and seal all the other joints except
for outdoor.s3 charge the nitrogen3 the gas pressure should be ;7Of6cm95
80 Xhe outdoor unit has been executed the leakage test in the factory5 Ffter connecting the distributing
pipe3 execute the leakage test from the outdoor check valve and the indoor5 Gesides3 while testing3 the
valves should be close5
90 Vefer to the below figure to charge the nitrogen into the unit to take a test5 Rever use the chlorin3
oxygen3 flammable gas in the leakage test5 Fpply pressure both on the gas pipe and the liquid pipe5
:0 Fpply the pressure step by step to the target pressure5
a5 Fpply the pressure to 75<QTa for more than < minutes3 confirm if pressure goes down5
b5 Fpply the pressure to 85<QTa for more than < minutes3 confirm if pressure goes down5
c5 Fpply the pressure to the target pressure /95?QTa03 record the temp5 and the pressure5
d5 Peave it at 95?QTa for over 8 day3 if pressure does not go down3 the test is passed5 Qeanwhile3
when the temp5 changes for 8degree3 pressure will change 7578QTa as well5 Horrect the pressure5
Trotect the pipe end against the water3 impurity into the pipes /welding after being flat3 or being sealed
with adhesive tape05
[hen connecting the pipes3 close the valves fully5