16
NARVON
6.8.1 Mechanical thermostat
It is possible to regulate the temperature of machines
provided with a mechanical thermostat when they
operate in “cold drink” mode. To do so, simply adjust the
refrigeration power using the potentiometer. To obtain a
higher refrigeration power (lower product temperature)
turn it clockwise towards higher power values.
1
3
4
5
6
7
0
2
1
3
4
5
6
7
0
2
Fig. 22
Note: When the machine is working in
critical conditions, there can sometimes
be insufficient air supply to the condenser
due to dirt accumulating. This can cause an
increase of temperature at the cold circuit. To
avoid this, a sensor will flash red when this
situation occurs.
To reset the machine it must be disconnected,
the left panel removed, and the condenser
cleaned (see Section 7.9).Reconnect the
machine and press the restart button (R)
situated on the right panel. The red pilot light
(PR) on the front panel will turn off.
