Unit installation
User, Installation and Service Manual for F1 Gas Unit Heaters  23
Ed. 05/2009 
WIRING DIAGRAM FOR MULTIPLE UNIT INSTALLATIONS 
230 V
50 Hz
GND
Figure 20 
WIRING DIAGRAM FOR MULTIPLE HEATERS INSTALLATION WITH ONE PROGRAMMER AND MORE ROOM THERMOSTATS 
P programmatore
TA termostato ambiente
RL1-2-3 relè comando 
 programmato
230 V
50 Hz
Figure 21 
WIRING DIAGRAM FOR MULTIPLE HEATERS INSTALLATION WITH ONE PROGRAMMER AND ONE ROOM THERMOSTATS (MULTIPLE RELAY 
SOLUTION) 
P Programmer 
TA ambient thermostat 
RL 1-2-3 programming 
command relay 
P Programmer 
TA ambient thermostat 
RL 1-2-3 programming 
 relay 
GND 










