Hatco HWBI Série Manuel D'installation page 24

OPTIONS AND ACCESSORIES
Converting a Unit to 3-Phase
HWBI-2, -3, -4, -5 and -6 units without optional cord can be
converted to a 3-phase electrical configuration. Use the
following procedure to convert a single phase unit to the
3-phase option.
WARNING
ELECTRIC SHOCK HAZARD:
• Turn power switch OFF, disconnect unit from the power
source, and allow unit to cool before performing any
maintenance or cleaning.
• This unit must be serviced by qualified personnel only.
Service by unqualified personnel may lead to electric
shock or burn.
1. Make sure the Power I/O (on/off) switches to the O (off)
position and the main power supply is disconnected.
2. Remove the trim cover from the control enclosure.
• For HWBI-4, HWBI-5, and HWBI-6 units with two
control enclosures, only remove the trim cover from the
enclosure on the right (when facing the operator side of
the unit) to perform the 3-phase conversion.
3. Locate the terminal block in the control enclosure and
perform the appropriate wiring changes to convert the unit
to 3-phase. Refer to the proper wiring diagram (supplied with
unit) listed below for the details regarding the wiring changes.
• Wiring Diagram 10-01-549 = All HWBI-2 and HWBI-3
units as well as HWBI-4, HWBI-5, and HWBI-6 units
with two control enclosures.
• Wiring Diagram 10-01-565 = All HWBI-4, HWBI-5, and
HWBI-6 units with a single control enclosure.
NOTE: To obtain a wiring diagram, contact an Authorized
Service Agent or Hatco for assistance (refer to the back
page of this manual).
4. After the 3-phase conversion is complete, apply the
"CONVERTED TO 3 PHASE" label to the inside of the
control enclosure, next to the terminal block. The label is
included in the information packet with this manual.
5. Replace the trim cover on the control enclosure.
6. Reconnect the power supply and test the unit for proper
operation.
24
English
Form No. HWBIM-0820