8
B
A
C
D
F
H
E
G
Fig. 4
Back
A
Heating water flow 1 (HV1) to the heating circuits /
air vent valve (EL)
B
Sensor well 1 (SPR1)
for cylinder temperature sensor
C
Heating water flow 2 (HV2)
from the heat generator
D
Sensor well 2 (SPR2)
for cylinder temperature sensor
E
Heating water flow 3 (HV3) / heating water return
1 (HR1)
F
Sensor well (SPR3)
for cylinder temperature sensor
G
Heating water return 2 (HR2)
from the heating circuits
H
Heating water return 3 (HR3) to the heat genera-
tor / drain outlet (E)
Preparing for installation
Connections
(cont.)
5674 554 GB
Installation
