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213
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'15 • HM-T-246
6) Dismount the water heat exchanger
If the center pillar cannot be removed, pull out the water heat
8) Mount new water heat exchanger
①
Inlet side of refrigrant pipe
②
Outlet side of refrigrant pipe
Be sure to do masking around the brazing place.
(The places not only around inlet side of refrigrant pipe but also
around outlet side of refrigrant pipe)
N ote: Be careful to braze pipes without any gas leak later on,
because the pipe is thicker and pipe insertion depth is deeper
and then working space is rather tight for brazing work.
7) Clean the internal of new gas-cooler
Before replacement, supply water(about 3L or more) to the internal of new gas-cooler.
Tilt it several times to the left and right, and drainage.
If the water color is brown, repeat the above operation until the water will be clear
.
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