Technical Manual

Product Installation
VITOCELL 300-H 9
Product Installation
Domestic hot water connections
42 and 53 USG / 160 and 200 ltr capacity
These are simplified conceptual drawings
only! Piping and necessary componentry
must be field verified. Proper installation
and functionality in the field is the
responsibility of the heating contractor.
92 and 120 USG / 350 and 450 ltr capacity
These are simplified conceptual drawings
only! Piping and necessary componentry
must be field verified. Proper installation
and functionality in the field is the
responsibility of the heating contractor.
Domestic hot water supply
DHW recirculation line
DHW recirculation pump
Spring loaded flow check valve
Discharge pipe of temperature and
pressure relief valve
Temperature and pressure relief valve
Shut-off valve
Drain
Domestic cold water supply lines
Backflow preventer
Domestic cold water inlet
Precharged expansion tank
(required where backflow preventer is
installed; check local plumbing codes
and requirements)
Thermostatic mixing valve/anti-scald
5
1
6
7
5
3
4
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0
1
IMPORTANT
IMPORTANT