Viessmann VITODENS 222-F Installation Instructions Manual page 11

Vitodens 222-F, B2TA 19 and 35 Installation
Connections
Min. 6"
(Min. 152 mm)
Legend
A Heating supply NPT ¾"
B DHW NPT ¾"
C Pressure relief valve discharge pipe NPT ¾"
D DCW NPT ¾"
E Heating return NPT ¾"
F Temperature and pressure relief valve discharge
pipe NPT ¾"
Boiler water connection and piping
Use an approved pipe sealant or teflon tape when
connecting the following installation fittings.
This section constitutes an overview only! Refer to
subsequent sections for detailed information on individual
piping connections.
Note: See installation fitting sets on page 54.
Min. 6"
(Min. 152 mm)
Boiler Connections
11