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Cycle Gard® I Installation Instructions
Model C152EHF 1-¼”
NOTICE: Annual inspection and maintenance is required of all plumbing
system components. To ensure proper performance and maximum life, this
product must be subject to regular inspection, testing and cleaning.
Regulators in series: Where the desired pressure reduction is more then a 4
to 1 ratio (i.e.. 200psi to 50psi), multiple regulators in series should be
installed.
DIAPHRAGM WARNING: Loosen jamb nut and adjustment screw slowly.
Look for any trapped water pressure under the diaphragm. Relieve pressure
before removing cover.
CAUTION: Anytime a reducing valve is adjusted, a pressure gauge must be
used downstream to verify correct pressure setting. To properly adjust the
downstream pressure there needs to be flow through the valve in the
direction of the flow arrow on the body. Do not bottom out adjustment
screw on cover. Valve may be installed in any position.
NOTE: Motor manufacturers recommend using a flow sleeve to be sure the motor is properly cooled at low flow
rates. Do not exceed 125 psi pressure differential across the valve.
INSTALLATION INSTRUCTIONS:
1. Before installing reducing valve, flush out line to remove loose dirt and scale which might damage disc and seat and
turn power off. Install valve in line with arrow on valve body pointing in direction of flow.
2. Install the valve downstream of the pump and before
the pressure switch and tank. Note: If there are any
water outlets such as yard hydrant of supply
between the pump and Cycle Gard ® I install a bypass with a check valve around the valve. Warning-
This pressure will be unregulated pressure. Not
recommended for high capacity and pressure
pumps. The check valve shall be installed with flow
going in the opposite direction of the Cycle Gard® I.
this allows for free flow around the Cycle Gard® I
unit to provide tank pressure to the yard hydrant or
outlet (see illustration).
3. Pre-charge pressure in the tank should be 5 to 10 psi lower than pressure switch turn on pressure. All valves are
factory pre-set to 50 psi. To re-adjust reduced pressure loosen outer jam nut and turn adjustment screw clockwise (into
cover) to increase downstream pressure, or turn counterclockwise (out of cover) to lower downstream pre ssure. Valve
may be installed in the horizontal or vertical position. Open a line downstream and allow pump to turn on, then slowly
close supply valve downstream until demand is roughly around 2 to 3 GPM. Then adjust the valve until the downstream
pressure is constant, at about 10 psi lower then the cut off pressure of the pressure switch setting. Close off
downstream valve and the pressure tank will fill up at about 1 GPM.
4. The tank fill rate can be easily adjusted with the external by pass on outside of valve. Adjust the by pass valve to full
open to lower the run time of pump or close valve slightly to increase run time (A minimum of 2 GPM is recommended
for tank fill rate.) NOTE: Do not totally close the by pass valve.
Note: In systems using a small tank with 5 gallons or less of drawdown, adjust the regulated downstream valve
pressure to the same as the cut in (pump on) pressure setting of the pressure switch. For example if your system is
using a 40/60 pressure switch setting set your regulated downstream valve pressure at 40 psi. For longer run rimes set
your regulated pressure closer to the cut on (pump on) pressure setting on the pressure switch.
Flomatic Corp, 15 Pruyn’s Island, Glens Falls, New York 12801
Phone: 518-761-9797 Fax: 518-761-9798 www.flomatic.com
Flomatic Corporation
FLOMATIC
VALVES
FLOMATIC
VALVES
C152EHF
Rev. 4
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Cycle Gard® I Installation Instructions
Model C152EHF 1-¼”
General Trouble Shooting
Pipe lines in a water supply system must be of sufficient carrying capacity to maintain adequate pressure at the most
remote or highest fixture. Under the maximum probable fixture use, minimum adequate pressure is generally 8 to 15
lbs., but may be more, depending on the equipment being supplied.
Relatively high service pressures which can create high water velocities in pipe lines would allow use of smaller pipes
to satisfy fixture use. However, high velocities tend to cause whistling and humming. Reductions of pressure by the use
of a pressure reducing valve, in an attempt to eliminate the undesirable condition, may reduce pipe line capacities below
what is adequate for maximum probable use.
When high service pressures are in effect, either continuously or periodically, the application of a pressure re ducing
valve will be successful only when the installed pipe line is of adequate size to satisfy the system demand at the lower
pressure. When actual water demands are unknown, the valve size should be no less than the existing pipe size.
PROBLEM
1. Pressure and fixture flow unsteady.
A. Low water supply pressure in main supply line caused
B. Heavy periodic demands by appliances in the house.
SOLUTION:
A. Pump my need to be serviced.
B. Alternate appliance usage to reduce over usage.
C. Increase pressure.
D. House service lines may at times be inadequate for the load. Size of some pipes may need to be increased.
PROBLEM
2. Pump continues to cycle on and off
B. Valve regulated pressure is set to close to the shut off
SOLUTION:
A. Readjust pressure switch setting higher than the regulated set pressure.
B. Readjust the regulated pressure setting on the valve to the cut in pressure of the pressure switch setting. For example
40/60 switch set the valve at 40 psi
C. Replace sealing disc in valve.
D. Replace diaphragm in valve.
E. Recharge tank or replace.
PROBLEM
3. Valve appear to be noisy, hums, whistles or
chatters
A. High velocity of flow in pipelines causing vibration due to
B. Chatter usually originates with worn small washer or
SOLUTION:
A. Use a second valve to reduce the differential pressure to the original valve.
B. Replace the small washer and sealing disc.
C. Reset the air pressure in the tank to 6 to 10 psi below the cut in (pump on) pressure setting on the pressure switch.
Limited Three Year Warranty: Flomatic Regulators are guaranteed against defects of material or workmanship when
used for the services recommended. If, in any recommended service a defect develops due to material or workmanship,
and the regulator is returned, freight prepaid, to us within 36 months from date of shipment from our factory, it will be
repaired or replaced free of charge. The Flomatic Corporation liability shall be limited to our agreement to repair or
replacement of regulator only. The Flomatic regulator described in this Bulletin is suitable for water service only.
POSSIBLE CAUSE OR CAUSES
possibly by inadequate pump pressure.
POSSIBLE CAUSE OR CAUSES
A. Pressure switch may not be set correctly.
pressure of the pressure switch.
C. Sealing disc in valve is wore or damaged.
D. Damaged or torn diaphragm in valve.
E. Water tank has become waterlogged.
POSSIBLE CAUSE OR CAUSES
excessive pressure drop across valve.
loosely installed disc.
C. Air pressure in tank is set too high.
Flomatic Corporation
Flomatic Corp, 15 Pruyn’s Island, Glens Falls, New York 12801
Phone: 518-761-9797 Fax: 518-761-9798 www.flomatic.com
C152EHF
Rev. 4
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