MCZ FC700-715 - 180+180 m3/h - Manual (Page 15)

Chapter 5
INSTALLATION AND USE MANUAL
page
15
Operation Technical service – MCZ S.p.A. all rights reserved - Reproduction prohibited
3.3. AUTOMATIC MODE
Once ventilation is turned on in manual mode, by pressing the red
MAN/AUT of the radio remote control, the device goes to AUTOMATIC
mode. The mode can be recognized by the fact that all the sound
signals emitted by the control unit in this status are long
beeps.
The yellow + and - buttons are used to increase/decrease the speed of
the fan from 1 st to 4 th and vice versa. The control unit responds with a
number of short beeps that corresponds to the selected speed:
1 st speed = 1 long BEEP
2 nd speed = 2 long BEEPS
3 rd speed = 3 long BEEPS
4 th speed = 4 long BEEPS
Ventilation is turned on and off exclusively by the temperature of the
thermostatic probe.
AUTOMATIC START BY MEANS OF THE PROBE:
If the temperature detected by the probe is greater than 45°C, the fan
comes on at the set speed (1 st speed) and an internal timer is activated
that performs a countdown starting from 40 minutes. This period of 40
minutes is called the “ warm-up phase".
After 40 minutes, if the temperature of the probe exceeds 65°C, it
means that the internal temperature is rising because the fireplace
stove is coming up to operating power, and therefore the fan must stay
on. After 40 minutes, if the probe does not reach 65°C, it means that
the power of the fire is low and the ventilation must be shut off.
If the user changes the speed while the system is between 45°C and
65°C, this is interpreted as a request for ventilation. The system goes
back to the warm-up phase; the timer is reset to 40 minutes and the
countdown begins.
AUTOMATIC SHUTDOWN BY MEANS OF PROBE:
If the temperature probe drops below 65°C, ventilation is shut off.
3.4. OTHER FUNCTIONS OF THE CONTROL UNIT FC 715
STAND-BY: The fan is off because the blue ON/OFF button of the
radio remote control has been pressed. Shutdown is signalled by a long
beep.
SAFETY: In STAND-BY status, if the temperature exceeds 150°C, the
fan comes on at speed 1 and the system goes into AUTOMATIC mode.
Ventilation continues until the temperature drops below 65°C.
STATUS RECOVERY: the system automatically saves, in non-volatile
memory, the last power setting made by the user, allowing continuation
at the speed after a power outage.
3.4.1. Setting transmission code of the radio remote
control
The radio remote control and the control unit are set with a neutral
code that makes it possible to check operation of the ventilation kit
immediately, before the cladding is completely installed.