Mitsubishi Electric City Multi PURY-EM200YNW-A1, Service Handbook

Page: 439 / 503

[8-15 Main-HBC Maintenance Instructions ]
172
- chapter 8 BS_08_L
8 Troub
le
sho
o
ting Bas
e
d on Ob
ser
ved
Sy
mp
toms
Operation procedures Illustrations
Operation
location
36) Rotate the plate heat exchanger toward
the back, and then pull it forward and out
of the unit.
37) Braze the new plate heat exchanger to
the unit in the reverse order as it was re-
moved.
Points to note when re-placing the parts in
the unit are explained below.
Installation
location
1. Re-brazing the pipe that was re-
moved in step 32
Replace the φ 44.5 pipe (indicated with
an arrow in the right figure) on the dis-
charge-side pump ASSY of the plate
heat exchanger with the supplied pipe.
2. Timing of re-placing the terminal
block cover
Re-place the terminal block cover of the
pump after installing the Victaulic joint.
3. Brazing the pipe explained in step 30
Before brazing the pipe, hold the pipe in
place with clips to determine the angle
of the pipe to be brazed.
4. Brazing the double-tube pipe and the
pipe with a sensor that were ex-
plained in step 24
 Braze the double-tube pipe at an angle
shown in the figure at right.
 Fix the pipe with a sensor on the sheet
metal before brazing the pipe.
Rotate to avoid contact
with the surrounding pipes.
Pull forward and out.
Terminal block cover
Victaulic joint
First, hold the pipe in place with clips on the right and left.
Braze here.
Double-tube pipe
Pipe with a
pressure sensor
Fix the pipe to the
sheet metal before
brazing the pipe.
10.4°
0000006416.BOOK 172 ページ ２０２１年１０月２６日 火曜日 午後５時３０分