12
13
SERVICE
AND MAINTENANCE
There are two regular maintenance
requirements common to all UV
systems: lamp replacement and
sleeve cleaning.
Lamp Replacement
The lamp’s UV intensity decreases
over time. You can safely use your
lamp for 12 months, after which it
must be replaced. For instance, if you
use your system for 12 continuous
months, you must replace your lamp
at the end of this period. If you use
the system only six months each year,
you would need to change your lamp
at the end of the second six-month
period.
Sleeve Cleaning
Minerals in the water will
eventually coat the quartz sleeve
that protects the lamp. This
coating must be cleaned off
periodically because it reduces the
UV intensity reaching the water. Once
a month, check the sleeve and clean
it if you can see a mineral coating
starting to form. You can use a soft
cloth with acid solutions or cleaners
such as Lime-A-Way
TM
, CLR
TM
or
regular vinegar to clean the sleeve.
INSTALLATION OR
REPLACEMENT OF UV
LAMP/SLEEVE
Lamp Removal
1. Shut off water supply to (upstream
of) the UV system.
2. Open a tap downstream of the UV
unit to release pressure, then
close this tap.
3. Unplug the power supply.
4. Let the lamp cool for 5 minutes.
5. Remove the lamp harness:
Release the safety clips by gently
applying outward pressure on the
finger tabs and push off the grey
plastic cover (see Figure 1 on
p.15) or gently squeeze the sides
of the cover adjacent to the snap
fingers (Figure 2). When the cover
is removed you can pull the lamp
plug off the lamp end (Figure 3).
Caution:
Do not pull on the lamp
harness cord to remove the plug.
6. Unscrew the lamp/sleeve assembly
and carefully remove it from the
reactor (Figure 4). Handle
lamp/sleeve at ends only. If
required, a wrench can be placed
on the flat sides of the sleeve bolt,
just below the snap ridges.
CAUTION:
Be sure to remove all
traces of cleaning
solution by thoroughly
rinsing the sleeve prior
to replacing it into
the reactor. Follow the
lamp/sleeve replacement
instructions.
CAUTION:
UV-C rays are present
when the unit is
operating. Follow the
instructions carefully to
avoid injury to eyes and
skin. Only qualified
persons should install
or replace UV lamps
or sleeves.
7. To remove the lamp from its
sleeve (Figure 5), use a glove or
cloth to support and hold on to
the sleeve. Unscrew the lamp
from the sleeve bolt. Be careful
not to drop the sleeve. If
required, place an adjustable
wrench on the flats at the side of
the sleeve bolt and a screw driver
shaft into one of the slots in the
top of the lamp end (Figure 6).
Lamp Installation
1. Ensure O-ring and seating area
are clean prior to assembly.
Place the O-rings and the sleeve
bolt on the quartz sleeve and put
the lamp into the quartz sleeve
(Figure 7). Be careful not to
angle the lamp while inserting it
into the quartz sleeve. If
excessive force is applied, the
outward pressure on the inside
edge of the quartz sleeve will
cause it to fracture. Slide the
lamp into the quartz sleeve until
the top of the sleeve meets the
bottom of the groove in the lamp
end. Screw the lamp end and
sleeve bolt together while
ensuring that the quartz sleeve
remains at the bottom of the
groove in the lamp end (Figure 7).
Once the O-ring begins to sit in
position, place a screwdriver
shaft in one of the slots in the
top of the lamp end and an
adjustable wrench on the flats at
the side of the sleeve bolt
(Figure 6). Further tighten the
lamp end 1/5
th
of a revolution.
Caution: Do not over -
tighten. Over tightening will
break the quartz sleeve.
Caution: Do not lubricate
any of the O-rings.
2. Ensure O-ring and seating area
are clean prior to assembly.
Carefully place the lamp/sleeve
assembly into the reactor.
Centre it with the spring in the
opposite end of the reactor and
screw the assembly into the
reactor. Once the O-ring begins
to sit in position, place an
adjustable wrench on the flats
of the sleeve bolt and tighten
sleeve bolt
1
/
4
turn (Figure 8).
Caution: Over-tightening the
sleeve bolt will break the
quartz sleeve.
3. If you are attaching the harness
for the first time, place the
eyelet of the green/ yellow
ground wire and the red strain
relief wire onto the ground stud
of the reactor (Figure 9). Screw
the lock nut provided onto
the ground stud to secure the
connectors of the ground wire
and strain relief wire.
Note: while tightening the lock
nut ensure that the eyelets are
turned sideways toward the
sleeve bolt. This is to ensure
that the eyelets and wires are
not sticking out and will be
covered by the grey plastic
cap.
4. Push the plug onto the end of
the lamp while ensuring that
the male tab on the lamp end
meets with the female tab on
the plug (Figures 10 and 11).
Ensure the green/yellow
ground wire and the red
strain relief wire are tight
against the sleeve bolt so that
they will be covered by the
cap. Push or snap on the grey
plastic cap while ensuring that
the wires are not in the way of
the snap fingers or the
support ridges that are on the
inside of the cap (Figure 12).
5. If the sleeve required
cleaning, the UV sensor will
also need cleaning (if so
equipped). Refer to Cleaning
the UV Sensor section of
instructions (p.17).
