3
MCD
Installation & Operations Manual
d. Where possible, route the power cord away from other electrical
lines. Do not run the power cord parallel to any low voltage signal
wires.
e. Secure the power cord as required to prevent damage.
9. Operation
a. With the spa filled to the proper level, run the spa controller
through several cycles.
b. Verify that the Ozone Generator turns on and off as required by
the controller: Depending on your model, one or two LED lights
should be visible through the cover and should illuminate when
the ozone generator is turned on.
c. Verify that gas is flowing into the injector (there should be no
water in the tubing, and very small bubbles entering the spa
through the return).
d. Verify that water does not push past the check valve during any
spa cycle.
e. Check for and correct any leaks.
10. Installation Complete
a. Once properly installed, the Ozone Generator requires no further
user operation. It will operate automatically with the spa system.
SECTION 2 Maintenance Instructions
The MCD is equipped with a replaceable ozone cell and power
supply. For optimum performance, we recommend the ozone
cell and power supply be replaced every five years. It is also
recommended that the o-ring, hose barb insert, and be replaced at
the same time. New replacement parts can be ordered from your
local dealer.
Follow the steps below to replace the old ozone cell, power supply,
o-ring, and hose barb insert. REFER TO FIGURE 2 ON PAGE 5.
1. Remove the MCD from your spa
a. Shut off power to the MCD or to the spa, and disconnect the
MCD power cord from the spa control pack.
b. Disconnect the ozone tubing from the MCD ozone outlet hose
barb.
