Vam Teplo PION 04 User Manual page 12

Thermoregulator RTR connection for the general pressure more than 3,5 kWt.
Automatic power
L1
phase1
L2
phase2
L3
phase3
N
zero
earth connectionе
N N
Thermoregulator
RTR-E 6121
RTR-E 6163
9
Scheme №3
Magnetic switch
2 1
earth connection
zeroN phase L1
Heater "ПИОН"
earth connection
zeroN phase L1
Heater "ПИОН"
earth connection
zero N
phase L1
Heater "ПИОН"