Connections
21
Recirculation Connections
H
Pipe domestic hot water supply piping
with tank as illustrated. Connections
must be accessible for service (use
factory supplied adaptors).
Connection sizes are provided in
section entitled Orientation and
Dimensions on
page 12.
H
Install recirculation pump, flow-check
valve and recirculation timer (for
shut-down during off-hours where
feasible) on the recirculation piping
side.
H
Gravity circulation of the recirculation
system is restricted due to the
upward-curved domestic hot water
discharge piping inside the tank.
H
Connect tank battery to existing
recirculation piping. Cap off unused
recirculation connections of individual
tanks.
Connection of a recirculation system in a multiple tank installation
for systems utilizing boilers or remote heating plants
without
low temperature boiler return water
and for steam heating operation with 15 psi and one recirculation line (Fig 18.)
Fig. 18.
Domestic hot water
Recirculation piping
Domestic cold water
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 remote heating plants
with
low temperature boiler return water limit
and/or for multiple recirculation lines (Fig 19.)
Domestic hot water
Recirculation circuit
Domestic cold water
Fig 19.
5167
535
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