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18 UH-SVX01A-EN
Installation
Piping
To provide proper coil operation,
follow all piping recommendations
listed in this manual.
Threaded pipe headers are provided
on all Vertical Units for piping
connections. See Figure 25.
Connections are given in Figure 18
and Figure 19 and Table 27 and
Table 28.
Follow standard practices and codes
when installing the piping. Provide
swing joints for expansion purposes,
unions and shut-off valves for
servicing purposes and as illustrated
in Figure 6 through Figure 9, valves
and traps for control purposes. Use
45 degree angle run-offs from all
supply and return mains.
Dirt pockets should be the same pipe
size as the return tapping of the unit
heater. Also, pipe size in the
branchoff should be the same size as
the tapping in the traps. Beyond the
trap, the return lateral pipe should be
increased one size up to the return
main.
Properly support all piping to unit!
Do not allow piping to place a strain
on the coil or unit. Noise or coil
failure may occur.
It is assumed that the type of system
to be used has been selected by
design engineer. The sketches shown
are for different type of steam
systems or hot water systems. For
sizing of piping, traps, filter, etc.,
consult ASHRAE guides of the
manufacturer’s literature on these
products.
Figure 16.
Figure 17.