Heating Water Connections - Viessmann Vitodens 200-W 19 WB2B Series Installation Instructions Manual

Connections
(continued)

Heating water connections

AV
PRV
BD
BWS
Fig. 14
Legend
AV Air Vent (inside boiler)
BD Boiler Drain
BF Boiler Fill
PRV Pressure Relief Valve
BWS Boiler Water Supply
BWR Boiler Water Return
BF
BWR
Boiler Connections
1. Thoroughly flush heating system
(particularly before connecting the
boiler to an existing system).
2. Connect boiler to the heating
system.
Max. operating
pressure 3 bar / 45 psig
. . . . . . . . . . . . . . . . . . . . . . . .
Test pressure 4 bar / 60 psig
. . . . . . . . . . . . . .
IMPORTANT
Damage resulting from pressure
exceeding those values stated is not
covered by Viessmann warranty.
19