Mitsubishi Electric PURY-HP144, Service Handbook

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[8-13 Parts Replacement Instructions ]
HWE18220_GB chapter 8 -
65
8 Troubleshooting Based on Observed Symptoms
8-13 Parts Replacement Instructions
8-13-1 Ensuring Maintenance Space (Preparation for the Maintenance of Refrigerant
Circuit Parts)
(1) Remove the front panel from the unit by unscrewing the 14 screws. (See Figure 1.) *Figure 1 shows the unit without the
front panel.
(2) Remove the fin guard by unscrewing the 12 screws. (See Figure 1.)
(3) Remove the cable straps holding the weak and strong electrical wirings. (See Figure 2.)
(4) Remove the center pillar by unscrewing the five screws. (See Figure 1.)
(5) Remove the drain pan cover by unscrewing the screw and cutting the cable tie. (See Figures 2 and 3.)
When re-placing the drain pan cover, make sure that the silicon tube is properly placed on the defrost pipe, and then fix the
drain pan cover in place with a cable tie.
(6) Remove the drain pan by unscrewing the two screws. (See Figure 2.)
Be sure to remove the two rod holders holding the check joints to the drain pan. (Figures 2 and 3 show the cable ties to be cut.)
(7) Remove the two cable straps holding the weak electrical wiring and the two cable straps holding the strong electrical wiring
from the control box. (See Figure 4.)
(8) Place the excess weak and strong electrical wirings in the space at the base legs as shown in Figure 5 to keep them from
being caught during maintenance work.
This step completes the procedure for ensuring maintenance space.
Figure 1
Figure 2
Figure 3
Rod holder
Drain pan cover
Fin guard
Center pillar
Control box
Silicon tube (white) and cable tie
Drain pan
Cable strap for holding weak electrical wiring (front)
Figure 4
Figure 5
Base leg
Protective tape
Silicon tube
Defrost pipe
Cable strap for
holding strong
electrical
wiring (back)
Cable strap for holding
strong electrical wiring
Cable strap for holding
weak electrical wiring
Cut the cable tie.