Jet Pumps - A.O. Smith ST1302 Manual

Pump Motors

JET PUMPS

The two most popular types of home water sys-
tems have their water delivered and pressure
developed by either a jet pump or submersible
pump.
As the name implies, the submersible
pump/motor unit is located in the water supply
and connected to a waterproof electrical supply.
The jet pump/motor unit may be located in the
home, or outside if there is little risk of freezing.
In freezing areas, the pump may be located out -
side in a pit which is covered and protected from
freezing.
Most jet pumps use open drip proof motors
(ODP). When used in a vertical application out-
doors, a different or additional rain canopy is
required. A separate "dog house" or motor cover
such as the Blue Devil™ unit shown here provide
protection from the elements and improves motor
life. Motor covers must allow free air flow so that
hot air from the motor is not recirculated, short-
ening motor life.
Jet pumps are called single stage if they have
one impeller and multi-stage if there are two or
more impellers.
The motor shaft is parallel to the ground in a
horizontal jet and vertical in a vertical jet.
All jet pump motors are two-pole (3450 RPM)
designs.
Level 2
13
Jet Pumps
8200 MC-200
UNIVERSAL MOTOR COVER
(fits 1/3 HP to 2 HP motors)
A.O.Smith