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Vitocell 100-V Installation Instructions
Recirculation Connections
Pipe domestic hot water supply piping with tank as
illustrated. Connections must be accessible for
service (use factory supplied adaptors).
Install recirculation pump, flow check valve and
recirculation timer (for shut-down during off-hours
where feasible) on the recirculation piping side.
Gravity circulation of the recirculation system is
restricted due to the upward-curved domestic hot
water discharge piping inside the tank.
Connect tanks to existing recirculation piping. Cap off
unused recirculation connections of individual tanks.
Saving Energy
A timer on the recirculation pump reduces the heat
loss significantly in commercial applications during
times when no or reduced demand for domestic hot
water occurs.
Connection of a recirculation system in a multiple tank installation for systems utilizing boilers or remote heating
plants without low temperature boiler return water
Connection of a recirculation system in a multiple tank installation for remote heating plants with low temperature
boiler return water limit and/or for multiple recirculation lines
Legend
A
Drawpoints
B
Recirculation piping
C
Circulation pump
D
Spring-loaded flow check valve
Legend
A
Drawpoints
B
Recirculation piping
C
Circulation pump
D
Spring-loaded flow check valve
E
Domestic cold water supply
F
Domestic hot water supply
G
Secondary high limit aquastat location
H
Air vent
E
Domestic cold water supply
F
Domestic hot water supply
G
Secondary high limit aquastat location
H
Air vent
Set-up and Connections
H
H
