8
(
Q
J
OLV
K
8
6
4.2 Adjusting the pressure switch
1. Turn nut #1 (large nut) clockwise to raise
cut-on/off pressures.
2. Turn nut #2 (small nut) clockwise to raise off
pressure only.
4.3 Tank pressure setting
* With no water pressure
5. Electrical connection
In fixed installations, safety standards require
the use of isolating switches with a fuse-carrier
base.
Single-phase motors are provided with built-in
thermal overload protection with automatic reset
and may be connected directly to the power
supply.
1RWH
See the wiring diagram on the
inside of the protective cover fitted
on the Square D pressure switch.
1RWH
A full turn of adjustment nut is
equal to 2 1/2 psi.
Switch cut-on
pressure
Tank air pre-charge *
20
18
30
28
40
38
Warning
All electrical work should be
performed by a qualified electrician
in accordance with the latest
edition of the National Electrical
Code, local codes and regulations.
Warning
Ensure that the voltage on the
power supply is the same as the
voltage shown on the motor
nameplate. A faulty motor or
winding can cause electrical shock
that could be fatal, whether touched
directly or conducted through
standing water. For this reason,
proper grounding of the pump to
the power supply’s grounding
terminal is required for safe
installation. The above-ground
metal plumbing should be
connected to the power supply as a
ground as described in Article
250-80 of the National Electrical
Code or Section 26-954 of the
Canadian Electrical Code.
1RWH
See the wiring diagram on the
inside of the protective cover fitted
on the Square D pressure switch.
