Unpacking the MEGA8 System
Your MEGA8 system includes the following items
Install Location
If your water comes from a well or a lake/river etc., the UV should be installed after your pump and pressure tank. To
prevent damage to the MEGA8 system, do not install it between well pump and pressure tank. If you have other water
filters/conditioner installed, such as softener/iron filter etc., the MEGA8 system should always be installed as the last step
of treatment before the water pipes divide into hot and cold (Fig 2).
REVERSIBLE DESIGN:
The MEGA8 system can be installed in two orientations (see Fig 3). Simply position the unit to
follow the water flow direction (left to right or right to left) and attach the electronic ballast in the front using the nuts &
bolts included with the unit. The ballast is not attached to the unit and is shipped in the inside box.
Note:
It is highly
recommended to build a bypass around the system so that you can still have untreated water in the house in case of
unit malfunction or if you need to remove the unit for service.
Fittings Required for Installation (Not Included)
Fittings required for a typical install on 3/4” copper pipe are 1”x ¾” bushing, 3/4” FNPT female adapter. Depending on the
location, you may also need (not necessary) some, ¾” Tees, ¾” elbows, ¾” pipe, ¾” union couplings and ¾” ball valves.
You may need different fittings if your pipe size or material is different. If you are unsure of what fittings to use, please
call Rainfresh.
Note:
UV light can degrade plastics over time. If your water pipe is plastic (such as PEX), it is
recommended that you use at least 6 to 12 inches of UV-resistant material (e.g. copper) on the outlet of the unit to
prevent damage.
MEGA8 UNIT
(Filter cartridges inside
housings)
UV Lamp
R830L
Quartz Dome
R830QD
Ballast
R830B2
Gland Nut
4030
with O-ring
(
515
) inside
Dome O-Ring
4032
Lamp Spring
4036
Ballast Nut &
bolts
4
Fig 2
Wrench
BH010-5
OR
SO
FT
EN
ER
(
O
p
ti
o
n
al)
Iro
n
F
ilte
r
(O
p
ti
o
n
al)
FIG 2
MEGA8
FIG 3