34
4
Ensure that the O-ring is seated at the lip of the external
prelter housing. Screw the external prelter housing into the
external prelter head. Tighten the connection with the
housing wrench.
5
The plumbing must be compatible with the inlet and
outlet ports of the external prelter.
6
Install the mini ball valve with plug at the bottom of the
external prelter housing.
When external prelter housing needs to be removed for
servicing (e.g. to change the lter cartridge), close the inlet
valve and depressurize the external prelter by draining the
water inside. To drain the water inside, open the mini ball valve
at the bottom of the external prelter housing. Depress the
red button on the external lter head to speed up draining. A
length of 1/4" tubing can be inserted into the port of the mini
ball valve to direct water into a drain or a large pail.
NOTE: Before installing or replacing the external prelter
housing on the external prelter head, inspect the O-ring to
ensure that it is clean and in good condition. Lubricate the
O-ring sparingly with DOW CORNING 111 silicone lubricant.
WARNING: In surface water
applications, failure to install and/or properly maintain
the external prelter cartridge may cause premature
fouling of the system and therefore, shorten the
system’s life or damage the system membrane, causing
personal injury and/or death.
Surface Water Option Kit Installation
WARNING: For all surface water
installations, the Homespring Certied Technician must
inform the homeowner and home occupants that the
entire water supply and distribution system of the
dwelling must be disinfected prior to use.
1” x ¾”
MNPT
Adapter
Housing
Wrench
External
Prefilter
housing
External
Prefilter
cartridge
Wall
Bracket
O-ring
External
Prefilter
head
1” x ¾”
MNPT
Adapter
Mini Ball
Valve
with Plug
Figure 60
The surface water kit is purchased separately from the system.
Install this kit in surface water applications.
For convenience of servicing, install the external prelter
between the inlet valve and the inlet tting assembly.
The inlet solenoid valve (normally open) must be installed
as part of the water inlet line and the check valve must be
installed as part of the water outlet line. Refer to Step 2 in the
Pipe Assembly and Installation section.
1
Mount the wall bracket to the wall.
2
Attach the external prelter head to the wall bracket
using the four supplied lag bolts.
3
Remove the plastic wrap on the external prelter
cartridge and insert the cartridge into the external prelter
housing.