MYERS 7MPB Serie Manual Del Usuario página 6

Install, ground, wire, and maintain your pump in
comliance 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.
NOTICE: Clamp the power cable to prevent strain on
the terminal screws.
NOTICE: Do not change motor wiring if line voltage
is 230 volts. Connect power supply as shown for
your supply voltage.
To Check For Proper Rotation – 3 Phase Motors
Risk of electrical shock.
1. Be sure power is disconnected to motor when
working on electrical connections.
2. Remove the motor end cover, exposing motor shaft.
Momentarily start pump. If hookup is correct, the
shaft will rotate clockwise.
3. If rotation is not clockwise, reverse any two leads to
the starter. The rotation will now be correct.
TABLE II - RECOMMENDED FUSING AND WIRING
Motor
Horsepower Phase
1/2 115/230/1
3/4 115/230/1
1 115/230/1
1-1/2 115/230/1
2 115/230/1
3 208-230/1
Max.
Volts/ Load
Amps
12.4/6.2
14.8/7.4
19.9/10
24/12
26/13
15.0
GROUNDING THE MOTOR
Ground the pump permanently using a wire of size and
type specified by local or National Electrical Code.
Models (7MPB50-01 and 7MPB75-01 Series Only)
with factory installed cord and plug:
Risk of electric shock. This equipment is
only for use on 115V and is equipped with an approved
3-conductor cord and 3-prong, grounding-type plug. To
reduce the risk of electric shock, be certain that it is
connected to a properly grounded, grounding-type
receptacle. Do not modify or remove plug. Make sure
pump circuit meets National Electrical Code. To avoid
dangerous electrical shock hazard, keep cord dry at all
times.
Models without cord and plug:
1. Connect ground wire first. Connect the ground first,
then to green grounding terminal provided under
motor canopy (see Figures 6 and 7) identified as
GRD. Make ground connection to this terminal. Do
not connect motor to electrical power supply until
unit is permanently grounded; otherwise serious or
fatal electrical shock hazard may be caused.
2. For best ground connection, connect to a grounded
lead in the service panel or to a metal underground
water pipe or well casing at least 10 ft. long. If
plastic pipe or insulated fittings are used, run ground
wire directly to the metal well casing or use ground
electrode furnished by the power company.
Branch
Fuse
Rating 0'-100'
Amps
20/15 12/14
20/15 12/14
25/15 10/14
30/15 10/14
35/20 8/12
20 12
6
Wire Length
101-200' 201-300'
AWG Wire Size
10/14 8/14
8/14 6/14
8/14 6/12
6/12 6/12
6/12 4/10
12 10