Wiring Connections; Connection Procedure - Pentair MYERS MPN Serie Notice D'utilisation

Electrical
Hazardous voltage. Can shock, burn, or
kill. Connect ground wire before connecting power
supply wires. Use the wire size (including the ground
wire) specified in the wiring chart. If possible, connect
the pump to a separate branch circuit with no other
appliances on it.
Explosion hazard. Do not ground to a gas
supply line.

WIRING CONNECTIONS

Fire hazard. Incorrect voltage can cause a
fire or seriously damage the motor and voids the warranty.
The supply voltage must be within ±10% of the motor
nameplate voltage.
NOTICE: Dual-voltage motors are factory wired for 230
volts. If necessary, reconnect the motor for 115 volts, as
shown. Do not alter the wiring in single voltage motors.
Install, ground, wire, and maintain your pump in
compliance with the National Electrical Code (NEC) or
the Canadian Electrical Code (CEC), as applicable, and
with all local codes and ordinances that apply. Consult
your local building inspector for code information.
Motor
Model
MPNC
MPND
MFNC
MFND
Wiring Chart – Recommended Wire and Fuse Sizes
Max.
Load
HP volts Amp
1/2 115 9.4
3/4 115/230 12.2/6.1
1/2 115/230 8.8/4.4
3/4 115/230 12.4/6.2

Connection Procedure:

1. Connect the ground wire first as shown in Figure 7.
The ground wire must be a solid copper wire at least as
large as the power supply wires.
2. There must be a solid metal connection between the
pressure switch and the motor for motor grounding
protection. If the pressure switch is not connected
to the motor, connect the green ground screw in the
switch to the green ground screw under the motor end
cover. Use a solid copper wire at least as large as the
power supply wires.
3. Connect the ground wire to a grounded lead in a
service panel, to a metal underground water pipe, to
a metal well casing at least ten feet (3M) long, or to a
ground electrode provided by the power company or
the hydro authority.
4. Connect the power supply wires to the pressure switch
as shown in Figure 8, Page 7.
DISTANCE IN FEET(METERS) FROM MOTOR TO SUPPLY
Branch
0 - 100 101 - 200
Fuse
(0 - 30) (31 - 61)
Rating
Amp
15 14(2) 10(5.5)
20/15 12/14(3/2) 10/14(5.5/2) 8/14(8.4/2)
15/15 14/14(2/2) 12/14(3/2)
20/15 12/14(3/2) 10/14(5.5/2) 8/14(8.4/2)
201 - 300 301 - 400
(62 - 91) (92 - 122)
AWG WIRE SIZE (mm )
2
10(5.5) 6(14)
6/12(14/3)
10/14(5.5/2) 8/14(8.4/2)
6/12(14/3)
8
401 - 500
(123 - 152)
6(14)
6/12(14/3)
8/12(8.4/3)
6/12(14/3)