Mitsubishi Electronics PCA-A.KA4 Drainage piping work, Electrical work, Electric wiring

5. Drainage piping work







•For left side tubing, be sure to insert the rubber plug into the right drain port. (Fig. 5-1)

•Use VP-20 (O.D. ø26 (1”) PVC TUBE) for drain piping and provide 1/100 or more downward slope.

•After completion of work, check that correct drain is available from the outfl ow port of the drain tubing.

Drain pan  Plug

 Insert the driver etc.in the plug deeply.

  

Fig. 5-1

Installing procedures (Fig. 5-2)



		1. Attach the joint socket  supplied with the unit to the drain port on the unit with a
		vinyl chloride adhesive.
		2. Fasten the socket cover  supplied with the unit to the joint socket .

3. Attach the fi eld drain tubing (VP-20) to the joint socket  with a vinyl chloride

		adhesive.
		4. Wrap the drain tubing cover  supplied with the unit. (Seam taping)


	 Drain pan
Fig. 5-2	 Drain tubing
	 Socket cover 
	 Joint socket 
	 Drain tubing cover 

 Insertion length 1-15/32 in. (37mm)

5. Check for correct drainage. (Fig. 5-3)

* Fill the drain pan with water of about 1/4 gal (1 L) from the air outlet.

Fig. 5-3

6. Electrical work

   









6.1. Electric wiring

Wiring procedures

1.Remove the tapping screw  then remove the beam.

2.Remove the (2) tapping screws  then remove the electric part cover .

3.For radio frequency interface.

Connect the electric cord of radio frequency interface securely to CN105 (RED) on indoor controller board.

For wired remote controller

Connect the electric wires securely to the corresponding terminals (Fig. 6-1)

4.Replace the removed parts.

5.Tie the electric wires with the local wiring clamp located in the right side of the junction box.

 Cover  Grounding cable connector

Set screws (2 pcs)  Terminal block for wired remote controller

Set screws (Beam) 7 Secure with the wiring clamp.  Wiring clamp

 Indoor controller board  Wire service entrance

 Terminal block for indoor and outdoor units connection

7

Fig. 6-1

CN105

(RED)

Fig. 6-2



6