Slant/Fin VGH-299-CH Installation And Service Manual page 122

System Example 8
BOILER 1
managing
OS
SNV
Low Voltage Connections
RT
OS
FS
ST
T
SNV
LLH
High Voltage Connections
P1
P2
P3
Figure 21-8
122
RT
BOILER 2 BOILER 3
depending 1 depending 2
P1
P1
SNV
SNV
Name
Room thermostat
outdoor temperature sensor
System temperature sensor
Tank thermostat or sensor
DHW indirect Tank
non-return valve (low resistance type)
low loss header
boiler circulator
HWS primary circulator
System heating circulator
E93.1601EN032.C VGH installation manual
BOILER 4
depending 3
P1
P1
SNV
LLH
FS
T
ST
Wire terminal
12-13
1-2
3-4
5-6
4-PE-5
2-3-PE
6-PE-7
HEATING
ZONE
P3
SNV
SNV
P2