Cycle Stop Valves CSV1A User manual

_Model_ CSV1A
Pump Control Valve
Installation Instructions
PREPARATION and INSTALLATION
1) It is important that the well has been pumped until clean before any valve installations. You do not want to fill the valve with
debris/drilling mud/sand/pvc shavings, etc. (Note: Multiple pump systems need a CSV for each pump). Turn off power to pump and
drain system.
2) The CSV1A must be installed prior to any tee offs. Correct order of installation should be: Pump - CSV1A - All other outlets
including the tank/switch. The only valve allowed between the pump and the Cycle Stop Valve is a check valve. (Always keep in mind
this is a pump control valve. All water pumped/demanded must first go through our valve for it to be able to control the pump).
Direction of flow is indicated by the arrow ºon the valve itself for proper positioning.
3) The diaphragm style pressure tank should be installed downstream of the of the CSV1A.
There are two options: The tank can be installed/plumbed into the 3/4” port on the bottom of the CSV1A valve with the pressure
switch/gauge/presure relief valve installed on the two 1/2” side ports....or the tank can be tee’d off of the main line via a standard
tank Cross or tank tee. Pressure switch and other controls can either be installed on the tank tee or tank cross. (Note: Do not
install pressure switch directly on main line away from pressure tank. Pre-charge pressure in the tank should be 2-5 psi lower than
pressure switch start point.)
4) Install using teflon tape on all threads. Four to seven wraps of teflon tape is usually sufficient. All connections should be
water tight.
SETTING THE VALVE
1) Be sure the adjustment stem is loosened counter clockwise almost all of the way out. (You might have to loosen the lock nut if it
is tight)
2) Turn on enough water to dump your pressure tank and cause your pump to come on.
3) Once the pump has come on, adjust your demand to 2-3 gpm (This reduced demand is important. You do not want to set the
valve with more gpm going through it than this). With the adjustment stem loosened all of the way out, the valve is going to try to
hold a low pressure of 15-25 psi or so. Wait a few moments after each adjustment for the valve to react and the pressure to
level off.
4) The CSV1A is adjusted by turning the adjustment stem clockwise to increase downstream pressure and counter clockwise to
decrease downstream pressure. Adjust the CSV1A until the pressure steadies at your desired working pressure. Tighten the lock
nut. The valve is set.
The CSV1A works with your pump sytem using pressure. The CSV1A has to be set within your existing system pressure parameters
to work correctly. The pressure tank pressure needs to be 2-5 psi lower than your pressure switch cut in pressure. The pressure
switch cut off pressure needs to be higher than the CSV1A working pressure. How much higher depends on your pressure tank size.
See chart below for your specific tank/pressure switch recommendations/examples.
Pressure Tank Air Pressure Pressure Switch CSV1A set
Total Capacity in Tank Cut in and Cut out working pressure
86 Gallon Capacity 38 40/60 58 psi
62 Gallon Capacity 38 40/60 57 psi
44 Gallon Capacity 38 40/60 56 psi
34 Gallon Capacity 38 40/60 55 psi
20 Gallon Capacity 38 40/60 53 psi
10 Gallon Capacity 38 40/60 52 psi
4.4 Gallon Capacity 38 40/60 50 psi Install
options

Symptom Cause
Diaphragm is worn out
Remedy
This is usually due to differential
pressure being higher than 125 PSI.
Use a second valve to reduce differen-
tial pressure to original valve. Replace
diaphragm in original valve.
Pump is Cycling off and on
Waterlogged pressure tank Replace tank
Bad or torn diaphragm Replace pilot diaphragm
Low pressure Valve is not set correctly Reset valve
Demand is more than pump can provide
at desired pressure
Reduce demand so it is within pump
capabilities to maintain desired
pressure.
Chattering valve Too much air pressure in tank Reduce air pressure in tank to 5-10
PSI below cut in pressure.
Pump rapid cycles at
start up and
then begins to function
correctly
Pressure switch is located on the main
line or closer to the main line than the
pressure tank.
Move pressure switch to small line at
the base of the tank on a line no
larger than 1 1/4” in diameter
CSV setting is too close to cut off
pressure
Set pressure switch cut off pressure
at least 10 PSI higher than CSV
setting
Air pressure in tank too high Reduce air pressure in tank to 5-10
PSI below cut in pressure
Multiple check valves in system work-
ing against each other
Remove all but the check valve or foot
valve on the pump itself
CSV1A Troubleshooting
Pressure switch or valve not set
correctly
Cut off pressure must be higher than
valve pressure. Reset pressure switch
or valve.