MODEL # NSSF6-2 System Feeder
Installation, Operation and Maintenance Instructions
PIPING CONNECTIONS
1. Place the NSSF6-2 on a secure level
base or use the optional wall
mounting brackets
2. Using the appropriate pipe
or tubing, connect the outlet
of NSSF6-2 ball valve to the system
— do not use metallic fittings. Use
an approved thread sealant for PVC
and
do not over tighten. Be sure
to secure the ball valve while
tightening the fitting.
3. If possible, the NSSF6-2 should be
connected to the system
at the point of no pressure change
— where the expansion tank is
connected to the system.
DO NOT
install a check valve,
pressure
reducing valve or a
back flow
preventer between
the NSSF6-2
and the system.
If using a bladder
style expansion tank, be sure to
inflate the tank to the same
pressure as the cold static pressure
of the system. This should be done
with zero system pressure.
4. After piping connections between
the NSSF6-2 and the system have
been completed, the NSSF6-2 can
be been filled with fluid (water or
glycol up to 50% solution).
ELECTRICAL CONNECTIONS
1. Connect the power adapter
to
the right side of the control box
mounted on the NSSF6-2. The
main body of the UL listed power
adapter has two hook and loop
strips on the back and these can
be used to mount the power
adapter to a convenient surface.
1.
The NSSF6-2 is factory set with a
16
PSI cut-out and a 15PSI cut-in.
DO
NOT SET CUT-OUT
PRESSURE
ABOVE 50 PSI.
2.
To adjust these settings, the
pressure switch should be in the
“Off” position (“Run” LED
OFF
).
a.
Push “Set”
button
and the
“Down” LED
will come on. The
number will
flash. Use up and
down arrows
to set the cut in
pressure.
Press set to save the
desired
cut in pressure.
b.
After pressing the set button to
lock cut in pressure, the UP
LED
will come on and the
number
will again flash. Use up
and
down arrow
s
to set cut out
pressure.
DO NOT SET ABOVE
50 PSI.
Press "set" button to
lock
in cut out pressure.
START-UP
1. Press the on off button and open
the ball valve. The pump will come
on and start pumping fluid into
the system. The “Run” LED will
flash while the pump is running
and will be solid when the pump
stops. The “UP” LED will light
when the system reaches pressure
and the pump stops. The “DOWN”
LED will light while the pump is
running.
2. The pump may cycle on and off
until the system pressure settles —
this is normal. Cycling may
continue until all of the air is
eliminated from the system.
3. If the fluid level in the tank
continues to drop for an undue
amount of time, check for leaks
and repair as needed.
FLOAT SWITCH
A dry alarm contact can be accessed
through the blank connector on the
left side of the control box. When the
fluid level gets low, the float switch in
the tank will shut the pump off and
close the alarm contact (no/c/nc) on
the circuit board. External alarm can
have a maximum 1 amp load.
Replacement parts are available.
SETTING PRESSURE UNITS
The pressure switch is factory set to
display “PSI”. To change this setting:
1. Press “Off”
2. Press “Up” to scroll through
pressure units.
3. Press “Set” to save setting.
ELECTRICAL CONNECTIONS
2. With the NSSF6-2 ball valve in
the off position, plug the AC end of
the power adapter into a standard
120 volt outlet.
PRESSURE SWITCH SETTINGS
The pressure switch includes a digital
display, 4 buttons and 7 LEDs.
When power is first applied to
the NSSF6-2 it will default to standby
— the green LED on the power
adapter will light together with the
following red LEDs on the pressure
switch — Power, PSI and Run (“Run”
will flash until system pressure
matches Cut-out setting). The digital
readout will also show a reading close
to zero.
ADJUSTING CUT-OUT AND
CUT-IN
Neutrasafe Corporation
421 Page St., Ste. 1,
Stoughton, MA 02072
781-616-3951
www.neutrasafe.com
