Mitsubishi Split-Type, Heat Pump Air Conditioner PUHZ-P100YHA3

Disconnect the connector, TH3 (WHT), and TH32 (BLK) on the controller circuit board in the electrical parts box

Loosen the fastener for the lead wire on the controller circuit board in the electrical parts box

Loosen the clamp for the lead wire on separator

Pull out the thermistor <Liquid> (TH3) from thermistor holder

Remove the top damper, then pull out the thermistor <Comp. surface> (TH32) from thermistor holder

Upload a photo of the disassembled thermistors

Sign off on the thermistors disassembly

Refrigerant recovered from the unit completely

Refrigerant not released in the air

Cycle charged with specified amount of refrigerant after service

Filter drier installed during service

Cylinder for R410A is a syphon type

Charging performed with the cylinder of syphon stood vertically

(1) Remove the service panel. (See Figure 1, 2)

(2) Remove the top panel. (See Figure 1, 2)

(3) Disconnect the connector TH7/6 (RED) on the controller circuit board in the electrical parts box. (Refer to procedure 3)

(4) Loosen the fastener for the lead wire in the electrical parts box.

[Removing the thermistor <2-phase pipe> (TH6) for V model]

(5) Remove the cont. box top fixing screws (4 on top/4 × 10) to remove the cont. box top.

(6) Loosen the lead wire from the edge cover in the electrical parts box.

(7) Loosen the clamp for the lead wire in the electrical parts box.

(8) Pull out the thermistor <2-phase pipe> (TH6) from thermistor holder.

Remove the electrical parts box

Remove the welded part of the accumulator (2 positions)

Remove the receiver leg fixing screws (2 for front/4 x 10), then slide the accumulator forward to remove it

Note: Recover refrigerant without spreading it in the air.

Warning: This procedure requires trained personnel with PPE!

Remove the electrical parts box

Remove the cont. box base fixing screws (2 for front/4 × 10) to remove the cont. box base

Disconnect the connector, DCL (WHT)(*10) on the power circuit board

Release the lead wire from the hole on cont. box base

Loosen the cable strap for the lead wire

Remove the screws for reactor (4 for rear/4 × 10) to remove the reactor

Sign off on the reactor disassembly