35
Field provided and installed water treatment
program must be compatible with stainless
steel, copper, aluminum, ABS plastic, and
PVC. Batch feed processes must never be
used as concentrated chemicals can cause
corrosion. Never use hydrochloric acid
(muriatic acid) or chlorine as it will corrode
stainless steel.
Heating Coils
Factory installed one or two row hot water
and steam heating coils can be factory
mounted. These coils are supplied from a
source through separate piping from the
condenser water source. All controls for
heating operation are field supplied and field
installed.
Always connect the supply to the top of the
coil and the return to the bottom. Water coils
must not be subjected to entering air
temperatures below 3.3°C (38°F) to prevent
coil freeze-up. If air temperature across the
coil is going to be below this value, use a
glycol solution to match the coldest air
expected.
Table 13 -Min and Max Water Pressure and Temps
Energy Recovery Units
Some SB units have been equipped with an
energy recovery wheel. This section is
provided to assure the energy recovery
feature will be properly setup to perform in
accordance with the job specifications for
your particular application.
Hot Water
Min. Entering Air
4.4 °C (40°F)
Max Entering Air
26.7°C (80°F)
60°C (140°F)
93.3°C (200°F)
0 kpa (15 psig)
Pipi
ng shall be in accordance with
national and local codes. Pressure
limiting devices, backflow preventers
and all other safety requirements must
be verified by a qualified technician.
P
roper sealing of the water piping
entries into the unit must be verified by
a qualified technican. Failure to seal
the entries may result in damage to
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