Hobart CNA - Initial Machine Setup Procedure; Rinse Booster First-Time Filling

Page 6 – CNA Series (rev. 3.00) © HOBART GmbH, Service Training Center
SERVICE TRAINING CENTER
INITIAL OPERATION
FILLING THE RINSE BOOSTER FOR THE FIRST TIME
This is necessary after setting the machine type, when the dishwasher has been initially installed or when the
booster has been drained (to prevent frost damage or to replace heating elements for instance).
– Remove lower front panel and switch on all circuit breakers and motor protection switches in the control box.
– Open shut-off valves at site and switch on main switch.
When switching on the machine, the temperature indicator displays flashing:
This indicates that the booster is empty and requires filling.
For the initial fill of pressure booster, the rinse pump has to be energised. This can be carried out via the test
mode after the break tank is filled (via mechanically operated float valve):
Switch off the machine by pushing the ON/OFF button and open the doors.
Push and hold the drain, conveyor speed and Start / Stop button together.
The temperature indicators display:
S01S01
S01S01
S01
corresponds to the first tested
input (doors) of the control board.
Close the doors. The wash temperature display changes to
--1--1
--1--1
--1
.
Generally the switch settings are displayd with
--1--1
--1--1
--1
when activated (close) and
--0--0
--0--0
--0
when inactive (open).
Push the Conveyor speed button repeatedly until the temperature indicator rinse displays "
A17A17
A17A17
A17
"
(output rinse pump).
Push the start button (
--1--1
--1--1
--1
appears in the wash temperature display) and hold until water sprays
out of rinse nozzles.
Switch off main switch.
Remove electr. control cover and put the provided
jumper on X2 (16/17).
Put the control cover and front panel in place.
Switch on main switch but not the machine.
Open doors, push the drain and conveyor speed button together.
The temperature indicators display:
To clear the message, push the start button . The temperature indicators display:
The wash temperature display will change immediately to
--0--0
--0--0
--0
.
Close the doors. The indicators go out and the machine is now ready for operation.
NOTE:
After setting the machine type or reset of the parameter C28 to "0",
BOFBOF
BOFBOF
BOF
will also be indicated and
the initial booster fill has to be repeated.