15
5813 312 - 01
Vitocell 300-W/V, EVIA/EVIB Installation, Operating and Service
Installation
Domestic Water Connections
Note:
- Connect all pipe work with detachable fittings.
-
Seal connections that are not required with brass
caps.
-
Equip the DHW circulation pipe with circulation
pump, check valve and time switch. Gravity
operation is only feasible to a limited degree.
-
Always install DHW group of tanks with
connected DHW circulation.
1. Pipe together boiler and tank as illustrated. Connections
must be accessible for service (use factory supplied
adaptors).
2. Insulate domestic hot water supply piping.
Legend
A
Spring-loaded flow check valve
B
Discharge pipe
C
Anti-scald tempering valve (field supplied)
SV Shut-off
valve
FV
Flow check valve
PR
Pressure reducing valve
D Drain
DCW Cold water supply lines
PGC Pressure gage connection
E
Precharged expansion tank (required where backflow
preventer is installed; check local plumbing codes
and
requirements)
BP1 Backflow
preventer
BP2 Backflow
preventer
T&P Temperature and pressure relief valve
DW Water
filter
DHW Domestic hot water supply
RP Recirculation
pipe
RPU Recirculation
pump
IMPORTANT
This is a simplified conceptual drawing only! Piping and
necessary componentry must be field verified. Proper
installation and functionality in the field are the responsibility
of the heating contractor.
