Owner`s manual

10
Attach the check valve assembly to the ozone generator cartridge. Be sure
the check valve bevels are pointed towards the spa and away from the
DELZONE unit - you should be able to blow air through the tubing in
one direction. See ELECTRICAL CONNECTION to complete installation.
When the final electrical connections are completed, refill the spa to its
normal operating level (check for leaks as the spa is filling), and turn the
power back on. Proceed to the DEL SUCTION TEST section before final
connections of ozone supply tubing are made.
INSTALLATION FOR LOCATION “E” (SINGLE-SPEED PUMPS)
For the location “E” connection, a DEL ADJUSTABLE INJECTOR MANIFOLD
(DEL Part Number IU-206) is required. The injector manifold must be installed
on the spa return line after all the spa equipment (See Figure 5). Refer to the
instructions for installing a DEL RIGID INJECTOR MANIFOLD, Installation for
Location “D”, above.
ELECTRICAL CONNECTION
The electrical cord should be wired to the pump controller so that the genera-
tor comes on only when the pump is on (for two speed pumps the generator
should be wired to the low speed control). Ozone generators supplied with a
special plug should be connected to the appropriate electrical outlet on the
spa pack on ozone-ready spas.
Some units require the addition of a minimum 8 AWG grounding wire, to
comply with local requirements. This wire must be connected from the open
ground lug of the power supply cartridge to a grounding point.
DEL SUCTION TEST
The DEL suction test is used to determine if the selected venturi location will
provide enough suction for proper ozonation of the spa, and for setting the
position of the ball valve on the DEL adjustable injector manifold in location
“E”. To test the suction, disconnect the ozone supply tubing from the ozone
generator. With the spa running, place your thumb over the end of the tubing
and check how much suction is applied to your thumb. The suction should be
strong enough to lightly “suck” your thumb to the end of the tubing.