Installation Examples - Viessmann VITODENS 222-F Installation Instructions Manual

Vitodens 222-F, B2TA 19 and 35 Installation

Installation Examples

Please note that in the following piping layout examples
all pumps external to the boiler are field supplied.
IMPORTANT
DHW tank, heat exchanger, diverting valve and DHW
circulating pump are installed in the unit with all the
connections between components.
DHW connecting fittings inlet and outlet are c in. NPT.
DHW tank is protected with temperature pressure relief
valve at 150 psi and discharge outlet of the valve is c in.
NPT.
Operation of the DHW system is controlled by the boiler
control.
IMPORTANT
The examples on the following pages depict possible
piping layouts of the Vitodens 222-F boiler equipped
with Viessmann System Technology.
Please note that the following examples are simplified
conceptual drawings only!
Piping and necessary componentry must be field verified.
A low water cut-off (LWCO) must be installed where
required by local codes.
Proper installation and functionality in the field is the
responsibility of the heating contractor.
Installation Examples
31