Delta ELEKTRA UV EA Serie Instructions De Montage page 28

d. Bulb at end of life (EOL) - Replace the UV bulb if it is nearing the one (1) year useful life. At
one year of operation, the UV bulb is 60% as effective as it was when it was new. This is normal
for all low-pressure type UV bulbs, which are the longest life bulbs used in this type of
application.
e. Pool Chemistry Is Off - If your EA unit is installed on a swimming pool, shock the pool with the
sanitizing chemical you normally use and balance the pool water as per your chemical
manufacturers specifications.
f. Pump Flow Exceeds Unit Design Capacity - Your unit is undersized if the water is not clearing
up on a new installation. Check the flow rate of the pump and compare it to the maximum flow
rate for your unit (available online at www.deltauv.com). Flow rates in excess of the maximum
flow rate of your UV unit will render the system ineffective as there is not sufficient exposure time
of bacterium to the lamp rays. Replace with a properly sized system for your flow rate and the
water will clear up.
The GFCI Has Tripped - The GFCI protects the system from any fault to ground, as the electrical
breaker protects the electrical circuit. When it trips, it is an indication that there is an electrical problem
that must be corrected to provide a safe operating environment in your pool or pond.
a. Test the GFCI - Disconnect the EA unit from the electrical receptacle. Reset the GFCI at the
breaker panel or at the receptacle. If the GFCI does not reset, replace the GFCI. If the GFCI
does reset, plug the EA unit into the electrical receptacle and make sure the pump is on. If the
GFCI trips, it is an indication that there is a ground fault inside the EA unit. Follow instructions
previously given for replacing the bulb.
b. Inspect the EA unit's electrical assembly - If water is present inside the electrical enclosure or
quartz tube, it will trip the GFCI. Following instructions given previously, remove the quartz tube,
inspect it for cracks or breakage or for a bad quartz tube seal. Replace the quartz tube if it is
cracked.
c. UV Bulb is causing GFCI tripping - You can check the UV bulb for GFCI trip cause by
unplugging the bulb from the bulb connector, then plugging the electrical plug back into the
electrified electrical outlet (make sure the outlet is powered). Reset the GFCI and if it does not
trip, it indicates that the UV bulb is causing the fault to ground. Replace the UV bulb. If the GFCI
does not reset, then the problem is with the ballast or the electrical power cord. Replace the
ballast/cord assembly.
The EA Unit Makes Noise When Operating - This is an indication of the EA unit not being properly
attached to a firm mounting base of wood or concrete with the mounting stands and band clamps
provided. It can also indicate that the UV bulb was installed without the required bulb cushion and/or bulb
O-Rings. Attach the EA unit correctly to a firm base as described in Sec. 5.5, or install the bulb cushion
and/or bulb O-Rings as described in Sec. 9.1.
Water Is Coming Out Of Electrical Enclosure - Water exiting the unit through the electrical enclosure
assembly can be attributed to either (a) a bad quartz tube seal (Factory installed), or (b) a broken or
cracked quartz tube. Check the quartz tube for cracks or breakage as instructed in Sec. 7.0 and Sec. 8.0.
Replace the quartz tube assembly if cracks in the quartz tube are found upon inspection.
SPECIFICATIONS:
Due to Delta UV's commitment to product improvement, all product descriptions or specifications are
subject to change without notice.
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