3M CWS075ME Installation And Operating Instructions Manual - Section 2: Installation
SECTION 2: INSTALLATION
Figure 2. SOFTENER AND BRINE TANK ASSEMBLY, TOP VIEW
2-2
Step 1. Remove the unit from the shipping box and remove
all packaging. Ensure no freight damage has occurred
since shipment from our manufacturing facility.
Locate the parts package and install the bypass
and adapter fittings on the control valve to facilitate
the connection to the customer’s water supply.
Step 2. NOTE: Extension legs should be installed only
whenever a salt dosage on any model softener
is more than 15 lbs.
Models utilizing 15" x 15" x 34" brine tanks re-
quire salt grid extension legs when salting the
softener above 15 lbs. of salt or more. Grid legs
extension kits are provided for CWS / MCWS 200
ME units. All other models requiring extension
leg kits can be ordered from your dealer, whole-
saler
or
from CUNO Water Treatment.
Verify all packaging materials have been removed
from the brine tank. On all units, legs rest on bottom
of the brine tank.
Step 3. Shut off all water at main supply valve. On a private
well system, turn off power to pump and drain
pressure tank.
Make certain pressure is relieved
from complete system by opening nearest faucet to
drain system.
Step 4. Cut main supply line as required to fit plumbing to
INLET and OUTLET of unit.
Step 6. The controls allow for either a 3/4” NPT connec-
tion or 5/8” poly tubing for use as a drain line
connection.
OVERFLOW
FITTING
BYPASS VALVE
IN
OUT
CONTROL VALVE BODY
DRAIN LINE FLOW
CONTROL ASSEMBLY
BRINE TANK
BRINE WELL
SAFETY BRINE
VALVE ASSEMBLY
BRINE LINE
ELBOW
INJECTOR COVER
OFF
OFF
OFF
OFF
Step 7. Attach DRAIN LINE to DRAIN LINE FITTING. To
prevent back pressure from reducing flow rate below
minimum required for backwash, DRAIN LINE MUST
be sized according to run length and relative height.
Be careful not to bend flexible drain tubing sharply
enough to cause "kinking" (if kinking occurs DRAIN
LINE MUST BE REPLACED). Typical examples of
proper DRAIN LINE diameters are:
(1) 1/2 in. ID up to 15 ft. when discharge is lower than
INLET.
(2) 5/8 in. ID up to 15 ft. when discharge is slightly
higher than INLET.
(3) 3/4 in. ID when drain is 25 ft. away and/or drain
is installed overhead.
IMPORTANT: Failure to follow instructions may void warranty.
To reduce the risk associated with hazardous
voltage due to installation on a home system
that requires use of the cold water system as
a safety ground:
x
To reduce the risk associated with property
damage due to water leakage:
x
Do not use pipe sealant on plastic
fittings.
To reduce the risk associated with property
damage due to water leakage:
x
Do not use pliers or pipe wrenches to
tighten plastic fittings.
CAUTION
CAUTION
WARNING
x
SHUT OFF FUEL SUPPLY TO WATER
HEATER after water is shut off.
IMPORTANT NOTE
If the home electrical system requires
use of the cold water system as an
electrical safety ground, a jumper must
be used to ensure the ground connection
across the softener piping — refer
installation to qualified personnel.
Step 5. Attach plumbing. DO NOT apply heat to any fitting
connected to BYPASS or CONTROL VALVE as
damage may result to internal parts or connecting
adapters. MAKE CERTAIN WATER FLOW ENTERS
THROUGH INLET AND DISCHARGES THROUGH
OUTLET.