H Series
Installation, Operation, and Maintenance Manual
ELECTRICAL INSTALLATION:
GENERAL GUIDELINES
All electrical work shall be carried out under the
supervision of an authorized, licensed
electrician. The present state adopted edition
of the National Electrical Code as well as all
local codes and regulations shall be
complied with.
VERIFICATION OF POWER SUPPLY
Prior to making any electrical connections or
applying power to the pump, compare the power
supply available at the pump station to the data
on the unit's nameplate. Confirm that both
voltage and phase match between pump and
control panel. The voltage supplied at the pump
shall be plus or minus 10% of the nameplate
value, frequency shall be plus or minus 5% of
the nameplate value, the voltage phase balance
shall be plus or minus 1% and the maximum
corrected power factor shall be 1.0.
POWER LEAD WIRING
The ends of the cable leads are marked. Please
refer to wiring diagram in the appendix for
connection details. The pump must be
connected electrically through a motor starter
with proper circuit breaker protection in order to
validate warranty. Do not splice cables.
THERMAL SWITCH WIRING:
Pumps are equipped with thermal switches
embedded in the stator windings. They are
normally closed, designed to open under a high
temperature condition and close when the
temperature drops below the set point. THEY
MUST BE WIRED TO A CURRENT
REGULATED CONTROL CIRCUIT.
Identify leads marked T1 and T3 and connect
these wires to the thermal overload relay located
in the control panel. Thermal switch leads must
be connected to validate warranty.
SEAL PROBE WIRING (OPTIONAL)
The probe utilized in the pump is a conductive
sensor and is normally open. Only one lead is
required to be connected to the seal fail relay
located in the control panel. Probe is grounded
to pump.
CAPACITORS AND RELAYS:
All single phase motors require start and/or run
capacitors to operate. Refer to the wiring
schematics in the appendix. Capacitors and
relays must be sized for the specific motor.
Please refer to nameplate for verification of
capacitor sizing.
(13 pages)
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