Installation (continued) – Flint & Walling Pressure Booster Pumps Instructions User Manual

Page 6

flintandwalling.com

Installation (Continued)

5. A pressure gauge installed in

the inlet pipe close to the inlet
port, (See Figure 6) will show if
enough water is being supplied
to the pump. See Operation
Section - Priming, Pressure Boost
Installations.

6. On installations that are using

nozzles for mist spraying, install
a filter in the discharge plumbing
to prevent the nozzles from
becoming plugged. Multiple filters
should be plumbed in parallel.

Install a pressure
relief valve on any
installation where

pump pressure can exceed the pressure
tank’s maximum working pressure or
on systems where the discharge line
can be shut off or obstructed. Extreme
over pressure can result in personal
injury or property damage.

This unit is not
waterproof and is
not intended to be

used in showers, saunas or other
potentially wet locations. The motor is
designed to be used in a clean dry
location with access to an adequate
supply of cooling air. Ambient
temperature around the motor should
not exceed 104ºF (40ºC). For outdoor
installations, motor must be protected
by a cover that does not block airflow
to and around the motor. This unit is
not weatherproof nor is it able to be
submersed in water or any other
liquid.

To avoid dangerous or fatal

electrical shock, turn off power to
motor before working on electrical
connections.

Supply voltage must be within ±

10% of nameplate voltage. Incorrect
voltage can cause fire or seriously
damage motor and voids warranty. If
in doubt, consult a licensed electrician.

Use wire size specified in wiring

Chart F. If possible, connect pump
to a separate branch circuit with no
other appliances on it. If motor wiring
diagram differs from diagram shown
below, follow diagram on motor.

Figure 6

IMPORTANT: A contained air pressure tank and pressure switch is required to
keep the pump from rapid cycling and prevent the motor from over heating.
Install the tank and switch on the house side of system.

Pump used to boost water pressure in mist spray applications (automatic
operation).

NOTE: Install solenoid valve on discharge side of pump.

Pump used to boost incoming city pressure (automatic operation).

IMPORTANT: Clean all filters and strainers on a regular schedule.

IL0423

IL0422

Street Supply

Union

Check Valve

Gate/Ball
Valve
(Normally
open)

Main Power Box

Fuse
Box or
Switch

Union

Pressure
Gauge

Drain

To size tank
properly - Match
drawdown of
tank to capacity
of pump

Union

Pressure
Relief
Valve

Pressure
Switch

Pressure Switch

Gate/Ball
Valve
(Normally
open)

Inlet

Pressure
Gauge

Check
Valve

Outlet

Service Tee

Fuse Box
or Switch

Thermostat

Gate/Ball Valve

From Water Source

Gate/Ball Valve
(Normally open)

To Nozzles

To Drain

Pressure Gauge

Line Filter

Solenoid
Valve

Pressure
Relief
Valve

Figure 7