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d. Verify that the GFCI has not tripped. To verify the operating state of the
GFCI, trip the GFCI manually and reset it manually. The GFCI should
reset. If it does not, it indicates a fault to ground in the electrical circuit
or the ULTRA UV unit itself. Contact your supplier for assistance.
e. The ballasts have internal protection that will power down the lamps
in the case of an electrical event. Power down the unit for 5 minutes.
This will reset the internal protection. When the power is returned, the
internal protection is reset.
THE UV LAMP(S) STAYS ON WHEN THE PUMP IS OFF
The ULTRA UV unit is equipped with a safety pressure switch that turns
the UV lamp(s) OFF when the pump is turned OFF. This function guards
against having the lamp(s) lit accidentally when the electrical enclosure
cover is removed and the electrical power to the ULTRA UV unit is still
ON. This also serves to ensure that there is water flowing in the ULTRA UV
unit’s reactor chamber to cool the lamp(s) and extend lamp life, before the
lamp(s) is/are turned ON.
a. If the top of a ULTRA UV unit is
located below the water level
of the pond or pool, there is a
static head of water that causes
pressure to be found inside the
wet chamber. This static head
of pressure closes the pressure
switch and the lamp(s) stays lit
even when the pump is OFF.
In this instance, you need not
utilize the pressure switch, as the
lamp(s) will always be operating
with the reactor full of water. The
pressure switch may be jumped
by first unplugging the ULTRA
UV unit from electrical power,
removing the electrical enclosure
cover, then moving the insulated
wire pressure connector attached
to the bottom tab of the pressure
switch (Fig. 30) to the unused tab of the brass two prong tab on the
top of the pressure switch (Fig. 31). This then bypasses the pressure
switch. Power can be restored to the ULTRA UV unit once the electrical
cover is reinstalled on the unit. CAUTION: With the pressure switch
removed from the electrical circuit, only remove the electrical enclosure
AFTER the power has been removed from the ULTRA UV unit, as
the lamp(s) will remain ON until electrical power is removed from the
ULTRA UV unit.
Unused Tab
Fig. 30
Fig. 31
