Installation Guide
PROFLO 3300 SERIES PUMPS
Operational and Installation Guidelines
Please read these Operational and Installation Guidelines before installing the ProFlo™
Series Pumps. If additional help is needed, please consult the Factory.
CAUTIONS
y Water pipe connections and fixtures directly connected to a potable water supply
shall be sized, installed and maintained in accordance with Federal, State, and local
codes.
y Do not operate the pump above the pressure limitations specified on the data label.
y Never operate the pump in a harsh environment or hazardous atmosphere, since
motor brush and switch may cause electrical arcing.
y Do not pump gasoline or other flammable liquids. Do not use with petroleum
products.
y Do not assume fluid compatibility. If the fluid is improperly matched to the
pumps’ elastomers, a leak may occur
y As long as there is inlet water pressure, the pump will not stop forward flow of
water even if the motor is turned o. Be sure the system has positive means of
shutting o water supply.
y Always consider electrical shock hazard when working with and handling electrical
equipment. If uncertain, consult an Electrician. Electrical wiring should only be
done by a qualified Electrician per Local and State Electrical Codes.
MOUNTING
y The pump should be mounted in a dry place and away from any source of heat. If
an enclosure is used, special instructions for cooling the motor may be necessary.
Consult the Factory.
y Do not subject the pump to extreme high or low (freezing) temperatures while in
operation. (Operating ambient temperature range is 32ºF to 115ºF).
y The pump may be mounted horizontally with the outlet port on the right when
viewed from the pump end or with the pump above the mount; or vertically with
the pump above or below the motor.
PLUMBING
y The pump is equipped with either a pressure sensing demand switch, a bypass
relief valve, or both which controls the maximum safe operating pressure.
y We recommend use of flexible tubing with proper pressure rating.
y Pump will prime only if all pressure is relieved from outlet port.
y It is recommended that debris-free liquid be pumped or an in-line sediment filter
(50 mesh) be installed at the inlet side to keep foreign debris out of the system.
y The pump should always be mounted prior to any components which could
introduce particles to the liquid; thus, preventing them from entering the pump
chambers and possibly causing clogging.
y Avoid any sharp bends which may crimp tubing and restrict flow. Use 90º elbow
fittings if necessary. REMCO provides pumps with dierent kinds of fittings. Please
consult Factory for your needs.
ELECTRICAL
y The ProFlo™ Series Pumps are designed for intermittent duty, but may run
continuously if the motor temperature does not exceed the recommended limit.
Some ProFlo™ Series Pumps are equipped with thermally protected motors and in
case motor temperature exceeds thermal cut-out rating, pump will shut down and
will not restart until motor cools down to specified temperature. Please consult
the appropriate Data Sheet for continuous running parameters, noting the eect of
rapid On/O Cycling (See section below).
y If a power supply is used with the system and the supply is not furnished by
REMCO, it will need to be reviewed for correct application and approval by REMCO.
Installation Procedure
The basic demand pump is controlled by a built-in pressure sensing demand switch.
When a faucet or valve is opened down stream of the pump, line pressure drops, thus
starting the pump automatically. Conversely, when the valve shuts, the line pressure
increases turning the pump o automatically. The pressure switch actuates in response
to the pump outlet pressure at a predetermined and preset pressure. The pump label
indicates the pre-set OFF pressures. Typically, the OFF pressure is accurately set at the
FACTORY and the ON pressure is within an allowable range below that value. In response
to the characteristics of the system in which the pump is installed, such as the flexibility
and length of the tubing, and the faucet or valves and the duration that they are open,
these pressure settings may vary. Therefore, change in pressure settings is expected
with use and over time. If the pump does not have an integral pressure sensing demand
switch (i.e. pump is operated with an external control), pump will be equipped with a
bypass relief valve (bypass is factory preset).
Read the OPERATIONAL AND INSTALLATION GUIDELINES on the other side carefully
before starting to install the pump. Consult the Factory if there is any question.
Determine the optimum location for your pump before proceeding.
y Turn o the fluid supply.
y Cut the flexible tubing in suicient length to avoid any stress on the tubing or hose
where it connects to the pump or the fitting on any accessory or hose.
y Insert tubing or hose into pump ports. If compression fittings with threaded nuts
are used, insert tubing until it bottoms out in the port and hand tighten the
compression nut until the connection is tight. Then use a wrench to tighten the
nut 1/2 turn clockwise or follow the wrench tightening instructions provided by the
fitting manufacturer.
y The ProFlo™ Series pump is now ready for operation. Open the inlet valve if any to
allow fluid to flow to the pump.
y If the power source is a transformer, plug the appropriate REMCO
supplied or approved transformer into the receptacle and connect the pump to the
transformer. If the power source is not a transformer,
connect the pump to the appropriate power source. Open the discharge or
dispensing valve. Allow water to circulate, purging any entrapped air.
y The pump will now start building pressure. Operating pressure will vary with flow
rate, flow valve, feed-water pressure and line voltage. Check for fitting leaks.
y If compression fittings with threaded nuts are used, observe any leaks after pump
has run for approximately 15 minutes. Further tighten
compression nuts approximately 1/8 to 1/4 of a turn on all fittings in the system.
Wait 15 minutes and repeat the leak check.
NOTE: Further adjustments should not be necessary although it may take several
days of operation before all the air has been purged and the system is stabilized.
y Rapid On/O Cycling must be limited to no more than 6 times per minute,
even if the pump is operating in the Continuous Duty zone. Cycling could
cause the motor to heat beyond the recommended maximum temperature,
and reduce the operational life of the pump and pressure-sensing switch.
Servicing
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EVERY USE
Run clean water through the pump and
system.
EVERY YEAR
Check system against operating stan-
dards. If continuous duty, replace lower
housing assembly
EVERY OTHER YEAR
Check against operating standards. If
continuous duty, replace motor
EVERY FIFTH YEAR
Replace valves