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MAINTENANCE AND USE MANUAL
furnace D
EN
The switched-on aspirator (optional) starts/stops automatically during oven operation and/or
shutdown. The operator can, nevertheless, program aspirator shutdown temperature during Data
Programming (see section 7.3.1 point I). In fact, once the third parameter (temperature increase
rate) press
PROG.
(
11
) to save the data that will then be set.
The display (
4
) shows “
FAn
”
300
.
The figure “
300
” indicates the temperature (in °C) at which the fan automatically stops working.
This data is entered by technicians at
Zhermack S.p.A.
during final oven testing. Should the
operator so desire, he/she may vary this setting between a minimum of 0°C and a maximum of
700°C.
As a guideline, this setting should not be any higher than 400°C because, while air flow from the
melting chamber is only minimal, it is good practice to prevent withdrawal of heat as this delays
attainment of high temperatures.
7.4
USING THE ASPIRATION UNIT
Programming of the fan shutdown temperature is only effected, of course,
where the oven has an aspirating flue.
As regards aspirator positioning and connection, observe the instructions in
sections 6.4.1. carefully.
Press
PROG.
(
11
). The on-key LED flashes. The legend “
Pro
” appears on the display (
4
) to
indicate that you now have access to programming.
To change program start data:
- repeat the settings as described in points
A., B., C. and D.
of paragraph 7.3.1.
To change data during the start of the heating cycle:
- repeat the settings described in point
E.
of paragraph 7.3.2.
7.5
CORRECTING DATA ON A PROGRAM THAT IS RUNNING
You can check the programmed temperature at any moment as follows:
- press
TEMP.
(
8
)
- the temperature setting will appear on the display (
4
).
- a few seconds later the display (
4
) reverts to showing the actual temperature in the firing
chamber.
7.6
CHECKS DURING WORK
