North Star NSC30UD1 Installation Operation & Maintenance page 9

" If making a soldered copper installation, do all
sweat soldering before connecting pipes to the
softener fittings. Torch heat will damage plastic
parts.
" When turning threaded pipe fittings onto plastic
fittings, use care not to cross--thread.
" Use pipe joint compound on all external pipe
threads.
" Support inlet and outlet plumbing in some man-
ner (use pipe hangers) to keep the weight off of the
valve fittings.
5.
INSTALL GROUNDING WIRE (IF NEEDED):
" To maintain electrical ground continuity in the
house cold water piping, install a #4 copper wire
across the removed pipe section, securely clamping
it at both ends (see Figure 2) -- parts not included.
FIGURE 2
hose clamp
ground (2)
FIGURE 3
drain fitting
adaptor
valve drain
hose
overflow
drain hose
INSTALLATION STEPS, continued
ground wire
inlet -- outlet
pipes
To adapt a copper drain tube to the softener, buy a compression fit-
PULL OUT
ting (1/4 NPT x 1/2"O.D. minimum tube) and needed tubing from
for soft water
your local hardware store.
''service''
PUSH IN
for bypass
Cut barbs from valve drain elbow (pull clip
and remove drain valve elbow from valve)
valve drain
hose
1- -1/2"
air gap
FLOOR DRAIN
6.
CONNECT AND RUN THE VALVE DRAIN
HOSE:
" Take a length of 3/8" inside diameter hose and
attach to the valve drain fitting.
" Locate the other end of the hose at a suitable
drain point...floor drain, sump, laundry tub, etc.
Check and comply with local codes.
IMPORTANT: If a longer length of hose is needed,
buy and use high quality, thick--wall hose that will
not easily kink or collapse. The water softener will
not work if water cannot exit this hose during regen-
erations.
" Tie or wire the hose in place at the drain point.
Water pressure will cause it to whip during the back-
wash and fast rinse cycles of regeneration. Also pro-
vide an air gap of at least 1--1/2" between the end of
the hose and the drain point. An air gap prevents
possible siphoning of sewer water, into the softener,
if the sewer should back up.
" If raising the drain hose overhead is required to
get to the drain point, do not raise higher than 8'
above the floor. Elevating the hose may cause a
back--pressure that could reduce brine draw during
regenerations.
CONNECTING A RIGID VALVE DRAIN TUBE
1/4" NPT thread
barbs
Clip
To standpipe, sump,
laundry tub or other
approved drain.
1- -1/2"
air gap
LAUNDRY
TUB
1- -1/2" air gap
continued
Compression fitting 1/4 NPT x
1/2" O.D. tube
1/2" outside diameter
copper tube
1- -1/2"
SUMP
air gap
STANDPIPE
9