Caution, Death, Upright vertical position – Multiquip Submersible Pump ST-3050D User Manual
Page 13: Voltage phasing, Always
ST-3050D — PARTS & OPERATION MANUAL — REV. 0 (11/18/02) — PAGE 13
ST-3050D SUBMERSIBLE PUMP/CTRL. BOX — INSTALLATION (CB200)
DANGER:
To place the ST-3050D submersible pump into operation
requires the use of a control box. The control box contains the
necessary electronics (electronic overload module, float switch
connections and 230/460 voltage transformer) to operate the
pump. Remember this control box contains hazardous voltages.
Disconnect all sources of power before installing or servicing.
There exists the possibility of electrocution, electric shock or
burn, which can cause severe bodily harm or even
death
!
CAUTION:
This control box should only be installed or
serviced by a licensed electrician or qualified
personnel.
CONTROL BOX MOUNTING
Mount the control box in an
upright vertical position
. Make sure
the control box is securely fastened to a flat surface, that is free
of dust, dirt, moisture or any elements that may contaminate or
erode the electronic components of the control box.
3-Phase Power Installation (Input)
The ST-3050D submersible pump requires 230/460 3-phase
power for normal operation. The pump is shipped from the factory
in the 230 VAC configuration. To change the voltage setting from
230 VAC to 460 VAC refer to the transformer wiring section on
page 16.
If you cannot determine what your pump's power
requirements are, look at the vendor supplied identification
name tag attached to the pump or please contact Multiquip's
Service/Technical Assistance department.
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Applying incorrect power (
voltage phasing
)
to the submersible pump can cause severe
damage to the pump. Please make sure that
the correct voltage and phase are transferred
to the pump at all times.
POWER CORD REQUIREMENTS
When routing the three phase power via a power cord to the
control box,
ALWAYS
use the correct wire size. Please reference
Table 3 below (Cord Length/Wire Size) to determine the correct
wire size. Incorrect wire size can adversely affect the performance
of the pump.
CAUTION:
FLOAT SWITCH INSTALLATION (CB200)
1.
Remove the float switch input connector housing, then
route the float switch wires through the cable gland on the
control box. Attach the wires to the float switch terminal
block as indicated by Table 2. Reference Figures 7 and 8.
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2.
Tighten the connector housing to ensure a tight fit between
the cord and the connector body. This will prevent the cable
from pulling out of the terminal block and also prevent
moisture from entering the control box..
3.
Determine the length of the float switch wires, then secure
float switch wires to pump discharge hose.