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How to install the Del MCD-50 Renewal Kit

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The Del MCD-50 Ozonator is equipped with a replaceable ozone cell and power supply. For optimum performance, we recommend the ozone cell and power supply be replaced every two years or when the green LED light is not lit. It is also recommended that the o-ring, hose barb insert, and fuse be replaced at the same time.



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Steps

Things You'll Need

MCD-50 Renewal Kit

Step by Step

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Step 1

Shut off power to the MCD or to the spa.

Step 2

Disconnect the MCD power cord from the spa control pack.

Step 3

Disconnect the ozone tubing from the MCD ozone outlet hose barb.

Step 4

Remove the screw from the bottom mounting tab.

Step 5

Back the upper mounting tab screw out about two turns and lift the MCD up and off of the spa.

Step 6

Remove the cover screw on the back side of the base of the MCD.

Step 7

Using a flat head screwdriver or fingers, pry the two cover tabs outward to release the cover from the base.

Step 8

Lift the cover up and slide the cover forward and off.

Step 9

Remove power supply mounting screws and disconnect power supply connector (red and black wires).

Step 10

Lift ozone cell and power supply up and out. O-ring and hose barb insert may remain attached to ozone cell.

Step 11

Remove and discard ozone cell (with o-ring), power supply, and hose barb.

Step 12

Carefully pull circuit board out of the base slot.

Step 13

Remove old fuse from the circuit board. Dispose of old fuse.

Step 14

Insert new fuse into circuit board and carfully push circuit board back into the base slot.

Step 15

Insert new hose barb insert making sure to align the hose barb correctly and insert it completely into it's slotted hole.

Step 16

Install new power supply and mounting screws. Route power supply wires through pegs.

Step 17

Place new oring onto ozone cell outlet.

Step 18

Install new ozone cell by inserting into hose barb and gently pushing into cradle.

Step 19

Connect power supply connector.

Step 20

Slide cover into position while lifting the bottom of the cover up.

Step 21

Lower cover over ozone cell and snap cover tabs into place.

Step 22

Replace cover screw.

Step 23

Reinstall the MCD to the spa, reconnect ozone supply tubing to hose barb, and reconnect the power cord.

Step 24

Finally, turn the power to the spa back on.

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