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

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[8-13 Parts Replacement Instructions (Outdoor Unit) ]
BS_08_L chapter 8 -
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(19) To remove the front heat exchanger, loosen the screws on the right side of the right rear pillar. (4 screws on a standard
model or 3 screws on a high-efficiency model) (See Figure 17.)
To remove the rear heat exchanger, loosen the screws on the back of the right rear pillar. (3 screws on a standard model
or 2 screws on a high-efficiency model) (See Figure 18.)
Remove the screw holding the pillar to the rear heat exchanger support. (See Figure 18.)
Loosen the screws.
Unscrew the screws.
Connection of the pillar to the
front heat exchanger (4 screws on
a standard model or 3 screws on
a high-efficiency model)
Connection of the pillar to the rear
heat exchanger (3 screws on a
standard model or 2 screws on a
high-efficiency model)
Loosen the screws.
Removing the front heat exchanger
(Figure 17)
Removing the rear heat exchanger
(Figure 18)
(20) Remove the heat exchanger by diagonally lifting it up, using caution not to damage the fins or the pipes.
Removing the front heat exchanger
(Figure 19)
Removing the rear heat exchanger
(Figure 20)
Notes for replacing refrigerant circuit components (heat exchanger)
Be sure to perform non-oxidized brazing.
After brazing is done, check that the brazing is done properly and check for leaks before vacuum-drying the pipes.
Direct the brazing torch flame away from the wiring and sheet metals inside the unit not to damage them.
Place the wet felt sheets listed below (or their equivalents) around the areas to be brazed to protect the heat
exchanger, pipes, and pipe covers from being damaged from the brazing torch flame.
Recommended felt sheets: Spatter felt 50CF-11 (5t x 1 m x 1 m) by TRUSCO Nakayama
Felt sheets that meet the JIS standard (JIS A 1323 type A "Flame retardant testing method for spark droplets of
welding and gas cutting on fabric sheets in construction works")
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