Operation Manual

28
♦ Therm EL 38 boiler connection to the power supply
REKAS1
PT BT NU TL TB TV OT
BL
HDO
L1 L2 L3
N
Pe
VENTIL
N TUV TO
C
A+
1 2
GND
OR
REKZOB
REKREL
REKCPU
B-
1,25A
K7K6
K5
h
K2
K4K3
K1
1 2 3
4 5
2
4
1
5
3
Re1
Re1
Re2
Re2
Re3
Re3
Re6
Re6 Re7 Re8 Re9
Safety
thermostat
Night moderation
DHW
Heating water
sensor
Relief relay 1 Relief relay 2 Storage tank thermostat DHW sensor Outdoor temperature sensor OT communication
Three-way
valve
Blocking element
MRC
Heating
Circulation
pump
Cascade
Contactor
Room thermostat
Pressure
sensor