3
Vertical
Horizontal
GENERAL SAFETY INFORMATION
Protect yourself and others by observing all safety information. Shut off
power and drain pressure from system prior to service.
Mounting
The FLOJET 2840 Series Water Pressure System should be mounted in
a dry and adequately ventilated area.
Select a location where the plumbing is as direct as possible and the
inlet strainer is visible and accessible for cleaning.
The unit can be deck or bulkhead mounted. If bulkhead mounted, the
pump head should be down or lower than the motor.
Fasten base securely with the four rubber mounting feet assembled to
base as shown below.
Plumbing
Fasten strainer in a visible and accessible location for future cleaning.
Use 3/4” (19 mm) I.D. hose between pump inlet & strainer. Connect
strainer inlet to water supply line from tank and clamp all hose connec-
tions securely to avoid air leaks.
City water supply may be connected at any location in the pressurized
cold water line.
City water inlet
Autofill tank valve,
plumb to tank
Do not plumb auto fill
to pump suction line
Water heater
Check valve
Water Pressure
System
Water
tank
ELECTRICAL
W A R N I N G
W A R N I N G
W A R N I N G
RISK OF AN ELECTRICAL SHOCK!
When wiring an electrically driven pump, follow all electrical and safety
codes, as well as the most recent National Electrical Code (NEC) and
the Occupational Safety and Health Act (OSHA).
RISK OF PRODUCT DAMAGE!
Make certain the power source conforms to the pump voltage. Be sure
all power is disconnected before installation or removal.
For 12 VDC, 24 VDC and 32 VDC models, the red wire is positive and
black is negative. Use the maximum recommended fuse for pump pro-
tection. Recommended fuse amp rating is located on pump label. Fail-
ure to provide correct overload device may result in motor failure.
For 115 VAC models plug AC cord into a conventional 115V AC outlet.
OPERATION
IMPORTANT −
For correct operation, the tank must be properly pres-
surized on the air side before pump is started. Follow instructions on
the tank label and check air pressure after filling and before starting the
pump. The air valve is standard tire valve. Compressed air hose or hand
pump may be used to pressurize. Pressure can be reduced by pressing
the center pin in the valve.
To start up the Water Pressure System, make sure water supply tank is
at least 1/4th full and is open to pump inlet. Open all valves or taps on
outlet side to purge air from the system. Turn power on to the pump,
pump will start up. Allow to pump for a minute or until all the air has
been purged from the system. Close all valves in the system, the pump
will pressurize the tank, shut off and operate automatically to maintain
pressure in the system.
To completely fill the pressure tank for maximum volume, shut off pow-
er to pump and open faucet (or valve) closest to tank. Trapped air will
be expelled. Turn on power to pump.
DO NOT USE PUMP IN A FLAMMABLE ENVIRONMENT. DO NOT PUMP GASOLINE, PET-
ROL OR FLUIDS WITH FLASH POINT BELOW 100°F (37.8°C). DOING SO MAY RESULT IN
EXPLOSION WHICH COULD CAUSE PERSONAL INJURY, DEATH OR PROPERTY DAMAGE.
Do not use Water Boost System if it presents some damage such as burned or broken
pressure switch, exposed wire and/or contacts.
WARNING: DISCONNECT POWER TO PUMP AND OPEN VALVE TO
RELIEVE WATER PRESSURE PRIOR TO SERVICING PUMP
2
1
4
6
9
3
A
5
B
A
B C
D
C
7
Includes items 1 thru 4
8
