Hobart AM14TC Dishwasher User Manual


 
11
ELECTRICAL CONNECTIONS
WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE
PORTIONS OF THE NATIONAL ELECTRICAL CODE AND/OR OTHER LOCAL ELECTRICAL CODES.
WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT
SWITCH TO INDICATE THAT YOU ARE WORKING ON THE CIRCUIT.
Refer to the wiring diagram attached inside the control box and to the machine data plate for service
size requirements when connecting the dishwasher.
NOTE: On models AM14T and AM14TC, the
7
/8" plugged holes in the side of the control box are for
detergent and chloritizer / rinse feeder connections only. On model AM14F, the holes for the chloritizer
/ rinse feeder electrical connections are at the rear of the control box, located on top of the machine.
Dishwasher
There is no provision for automatically controlling any other external devices.
The dishwasher electrical service connection can be made through the 1
1
/8" diameter hole for
3
/4 inch
trade size conduit located at the bottom of the right side of the control box. By removing a knockout,
this hole can be enlarged to 1
3
/4" diameter for 1 inch trade size conduit. On model AM14F, the electrical
service connection can be made through the same size hole (with knockout for enlargement) located
at the rear of the control box on top of the machine.
A fused disconnect switch or circuit breaker (not supplied) must be installed in the electrical service
line supplying this dishwasher and should meet the requirements of your local electrical code.
All power supply connections are made at the terminal block 1TB in the control box. The machine
must be grounded according to electrical code(s); a grounding lug is provided in the control box.
Check Rotation (Three-Phase Machines Only)
Three-phase motors must rotate in the direction of the arrow on the pump housing. In order to check
rotation, observe the motor fan through the vent holes. Close the machine doors and press the power
switch to ON. When the machine is completely filled, place the M
ANUAL/AUTO switch (located on the side
of the control box) on MANUAL and place the WASH / RINSE switch (located under the M
ANUAL/AUTO
switch) on WASH. The motor fan must rotate in the direction of the arrow on the pump housing.
If the rotation is incorrect, DISCONNECT ELECTRICAL POWER SUPPLY and interchange any two
of the incoming power supply leads. Reconnect the power supply and verify correct rotation.
Electric Booster Water Heater
NOTE: Electric Booster electrical connection is separate from the dishwasher electrical connection.
Before making electrical connection, test the electrical service to assure that it agrees with the
specifications on the Electric Booster portion of the data plate. Also, refer to the wiring diagram
attached inside the cover of the control box.
A fused disconnect switch or circuit breaker must be installed in the electrical service line supplying
this booster and should meet the requirements of your local electrical code.
The electric booster service connection is made through the 1
3
/4" hole for 1 inch trade size conduit
located at the bottom of the control box. On three phase machines, the electrical connection is made
to the contactor 3CON in the control box. On single phase machines, the electrical connection is made
to the terminal block 4TB in the control box. The machine must be grounded according to electrical
code(s); a grounding lug is provided in the control box.