13
General Installation Information
Please review the following items thoroughly to ensure an
efficient and safe installation of the water treatment
system. The typical installation line drawings for the
Magnum valves are shown in Figure 19.
WARNING:
Filter media may need to be
properly conditioned before the filter is placed
into full operation. Consult the original equipment
manufacturer for proper procedure.
Operating Conditions -
A minimum dynamic
operating water pressure of 25 psig (172 kPa) is
required for the Magnum control valve to operate
properly.
Water pressure is not to exceed 100 psig
(688 kPa). In Canada, water pressure is not to exceed
100 psig (688 kPa). Water temperature is not to exceed
100
o
F (36
o
C). Do not subject the valve to freezing
conditions.
Space Requirements -
Allow adequate space for the
water treatment system and associated piping. A
minimum of 4 1/2 inches (11.5 cm) front and rear
clearance is required for cartridge assembly and removal.
Plumbing -
Always follow good plumbing practices and
conform to local codes. Check existing pipes for lime and/
or iron buildup. Replace piping if heavy buildup exists and
initiate the proper treatment to prevent additional
occurrences. Locate the equipment close to a drain that is
capable of handling the maximum drain flow rate during
backwash.
Flexible Connectors -
Some tanks expand and contract
over the acceptable range of operating water pressures of
the Magnum control valve. The use of flexible connectors
is recommended on polywound or fiberglass tank
installations of 24-inch (60.96-cm) diameter and larger.
Follow the tank manufacturer’s instructions for more
information.
Inlet and Outlet Piping -
Inlet and outlet plumbing should
be adequately supported to avoid excessive loads on the
valve. Install a manual bypass system to provide for
occasions when the water conditioner must be bypassed
for servicing.
Drain LIne Piping -
To prevent mineral loss during
backwash, and to ensure proper operation of the control
valve,
A DRAIN LINE FLOW CONTROL
must be plumbed
into the drain line prior to placing the valve in the service
mode. Flow controls from 5 to 40 gpm (18.92 to 151.4 Lpm)
are available from GE Water Technologies and can be
easily installed in the drain line. Flow controls greater than
40 gpm (151.4 Lpm) must be plumbed externally. Selection
of the proper drain line flow control depends on the tank
size and media used for the installation.
The following general drain line piping guidelines should
be observed:
•
1-1/2 inch (3.81 cm) or larger piping
•
Should not exceed 20 feet (6.1 m)
•
Should not be elevated higher than five feet above the
control valve
•
No shut-off valves should be installed in drain line
•
Minimal number of elbows and fittings should be
installed in drain line
•
Piping must be self-supporting
•
Flow control should be installed as close to the
Magnum Series control valve as possible if an external
flow control is used.
Figure 17
Brining System -
The Magnum control valve utilizes
timed water refill to add water to the salt tank. A refill tube
with check ball is required in the brine tank that does not
restrict the refill or brine draw flow rate capabilities of the
valve. Although not required, a separate brine valve (safety
float) system is recommended for use with Magnum
installations. Select a “High-Flow” brine valve that does not
restrict the refill or brine draw flow rate capabilities of the
valve. The “Performance Injectors and Magnum Flow
Controls” section of this manual contains flow rate
information for various size injectors and refill controllers.
Pilot Drain -
During regeneration, a small amount of
water (200 ml or 1 cup) is discharged from the 1/4-inch
(6.3-mm) tube fitting on the back of the valve marked
DRAIN (Figure 18). To prevent this water from being
discharged to the floor, plumb this connection to a non-
pressurized drain or to the brine tank.
Do not plug or
apply back pressure to the pilot drain at any time.
Crimping the pilot drain line or installing the line to go up,
which causes backpressure, prevents the diaphragm
cartridges from shifting properly through the cycles of
regeneration or backwash.
SU
MO
TU
WE
TH
FR
SA
DAYS
Time & Day
Regen Time & Day
Salt Amount
Capacity
Hardness
Drain Line Flow Control Disk
