OPERATING PROCEDURE

PHOTOS

10. Removing the bypass valve

Photo 9

(1)Remove the service panel. (See figure 1.)

(2)Remove the top panel. (See figure 1.)

(3)Remove the electrical parts box. (See photo 3.)

(4)Remove 3 right side panel fixing screws (5 ✕ 10) in the rear of the unit and remove the right side panel.

(5)Remove the bypass valve coil. (See photo 7.).

(6)Recover refrigerant.

(7)Remove the welded part of bypass valve.

Note 1: Recover refrigerant without spreading it in the air.

Note 2: The welded part can be removed easily by removing the right side panel.

Bypass valve

Bypass valve

fixing screw

 

11. Removing the high pressure switch (63H)

Photo 10

(1) Remove the service panel. (See figure 1.)

Bypass valve coil

 

(2)Remove the top panel. (See figure 1.)

(3)Remove the electrical parts box. (See photo 3.)

(4)Remove 3 right side panel fixing screws (5 ✕ 10) in the rear of the unit and remove the right side panel.

(5)Pull out the lead wire of high pressure switch.

(6)Recover refrigerant.

(7)Remove the welded part of high pressure switch.

Note 1: Recover refrigerant without spreading it in the air.

 

 

 

 

 

 

Note 2: The welded part can be removed easily by

 

 

 

 

 

 

removing the right side panel.

 

 

 

 

 

 

Note 3: When installing the high pressure switch, cover it

 

 

 

 

 

 

with a wet cloth to prevent it from heating (210˚F

 

 

 

 

 

 

or more), then braze the pipes so that the inside

 

 

 

 

 

 

of pipes are not oxidized.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4-way

 

Linear expansion

High pressure

 

 

 

valve

 

valve coil (LEV-A)

switch (63H)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12. Removing the reactor (ACL)(A24)

Photo 11

 

 

 

(1) Remove the service panel. (See figure 1.)

 

 

 

 

 

 

 

 

 

(2) Remove the top panel. (See figure 1.)

 

Reactor fixing screw

 

 

(3)Remove the electrical parts box. (See photo 3.)

(4)Remove 3 reactor fixing screws (4 ✕ 16) and remove the

reactor.

wThe reactor is attached to the rear of the electrical parts box.

Reactor

(ACL)

Reactor fixing screws

Electrical parts box

 

114

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Image 114
Mitsubishi Electronics PUY-A30NHA2-BS, PUZ-A42NHA2-BS 114, Removing the bypass valve, Removing the reactor ACLA24
Page 113 Page 115

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