26
F1
Single-phase circuit breaker 16A
A1
Regulator Siemens ACX 38.030
B1
Heating branch temperature sensor QAD 36/101
B2
Boiler output temperature sensor QAZ 36.526/109
A6
QAA88 device
B5
Fuel feeder temperature sensor QAZ 36.526/109
B9
Outside temperature sensor QAC 34/101
TB
Motor thermal protection
BT1
Safety thermostat
BT3
HW thermostat
H1
Safety thermostat signalling
K1
Fuel feeder motor relay
K2
Heating branch pump relay
K3, K4 Technological relays
M1
Fuel feeder motor
M2
Air fan motor
X10
Air fan motor socket
X10.1
Ventilator plug
Q1
Boiler primary circuit pump
Q2
Heating circuit pump
Q3
HW charging pump
S1
Regulator system reverser
S10
Manual fuel move key
S11
Ventilator manual start key
Y1
Drive of heating circuit three-way
valve
Fig. no. 21 Elementary wiring diagram – Mixing heating circuit
A
C
X
8
4
.9
1
0
/A
L
G
S
E
R
V
IC
E
U
N
IT
F
O
R
S
A
P
H
IR
R
E
G
U
L
A
T
O
R
O
P
E
R
A
T
IO
N
