24
Instructions for the installer
3.13 – HYDRAULIC AND ELECTRICAL WIRING DIAGRAMS
Introduction!
The diagrams below, are diagrams of principle and are subject to customization.
For special requirements, please contact our after-sales service.
Water production for heating plant with temperature controlled on the system by mixing valve with manually control.
Key:
Pr = Recirculation pump (the lack of installation will void the warranty)
VM = Zone mixing valve (lack of proper management will void the warranty)
Pi = C.H. pump
VE = Open expansion tank
IR = Central heating circuit
TKS = Microswitch controlling the loading door opening
TA = Room thermostat
fig. 22
The AIREX Standard panel board operates automatically
the shut off of the fan and the recirculation pump, if the boiler
temperature (after 30 minutes from the closing of the loading
door, for the boiler ignition purposes) does not reache 65 ° C
(minimum temperature).
The panel board (and the cycle) can be reset only after ope-
ning the loading door for a new ignition, or by the switching off
and on of the main switch pos. 11.
The same logic of the panel board will stop the fan and the
recirculation pump at the end of the loaded wood.
The pump system will operate only after passing the minimum
temperature of 65 °C in the boiler.
If the temperature decreases below the threshold of 65 °C, the
pump system will be shut down.
fig. 23
CALDAIA A LEGNA
Pr
VE
VM
Pi
IR
VENTILATORE
VENTILATORE
TKS
M
M
Pr
VE
VM
Pi
IR
TA
ALIMENTAZIONE
230V ~ 50Hz
L1
N
C
WOOD FIRED BOILER
Mains supply
230V – 50Hz
Fan
Fan
