— 13 —
POWER CORD
1. Follow the LOCKOUT/TAGOUT procedure
using the procedures provided in the Lockout/
Tagout Procedures section of this manual.
2. Remove the Power Head Lid following the
instructions provided in the Panels and
Covers section of this manual.
3. Disconnect the Power Cord from the Contactor
and remove the ground screw securing the
green ground wire to the unit’s chaise.
4. Refer to the unit’s schematic, connect the new
power cord.
5. Restore power to the unit.
6. Verify unit is working properly.
7. Remove the unit from its power supply.
8. Reattach the Power Head Lid
9. Restore power to the unit and ensure unit is
operating correctly.
POWER BOARD COMPONENTS
The Power Board Components include the Solid
State Relay, Contactor, 230VAC Float Board and
the Electrical Filter. Under normal circumstances
it should not be necessary to replace either the
Contactor or Electrical Filter.
Electrical
Filter
Power
Board
Contactor
230VAC
Float
Board
Solid State
Relay
Figure 11: Power Board Component Locator
NOTICE: The Power Board is mounted on plastic
risers that allow for air flow on the underside of
the board. It is not necessary to remove the board
when replacing one of its components; however
it may be necessary to loosen the screws that
secure the Power Board to the unit. Loosen the
screws but do not remove them as they will hold
the plastic risers in place.
WARNING
Before removing any sheet metal panels
or servicing this equipment, always
perform the Electrical LOCKOUT/TAGOUT
Procedure. Be sure all circuits are
disconnected. Failure to comply with this
procedure can cause property damage,
injury or death.
WARNING
Certain components may be hot if the
unit was in operation prior to performing
a procedure. Allow the unit to cool before
beginning work.
Solid State Relay
1. Follow the LOCKOUT/TAGOUT procedure
using the procedures provided in the Lockout/
Tagout Procedures section of this manual.
2. Remove the Power Head Lid following the
instructions provided in the Panels and
Covers section of this manual.
3. Tag and disconnect the wires mounted to the
Solid State Relay.
4. Remove the Solid State Relay by removing the
four screws securing it to the Power Board. It
may be necessary to loosen screws securing
the Power Board to gain access to the screws
at the front of the relay.
Summary of Contents for 1600NDNL
Page 28: ...28 WIRING SCHEMATIC CE Standard Wiring...
Page 29: ...29 CE Standard Wiring TCB41 Controller...
Page 30: ...30 Wiring CE ZYTRON...
Page 32: ...32...
