Erie water treatment SOF-WHF series, Technical Manual, Page: 4 / 24

OPERATING CONDITIONS & REQUIREMENTS
Page 4

OPERATING PRESSURE MIN-MAX: 2,0-8,3 bar / 29-120 psi

check water pressure regularly; it may fluctuate severely
depending on the time of day, the day of the week or even the
season of the year.

take into account that night time water pressure may be
considerably higher than day time water pressure.

install a pressure reducer ahead of the appliance if necessary.

install a pressure booster, if it is likely that water pressure may
drop below the minimum.

OPERATING TEMPERATURE MIN-MAX: 2-48 °C / 36-120 °F

do not install the appliance in an environment where high
ambient temperatures (e.g. unvented boiler house) or freezing
temperatures can occur.

the appliance cannot be exposed to outdoor elements, such as
direct sunlight or atmospheric precipitation.

do not install the appliance too close to a water heater; keep at
least 3 m (10 ft) of piping between the outlet of the appliance
and the inlet of the water heater; water heaters can sometimes
transmit heat back down the cold pipe into the appliance;
always install a check valve at the outlet of the appliance.

ELECTRICAL CONNECTION:

the appliance only works on 24 VAC; always use it in
combination with the supplied transformer.

make sure to plug the transformer into a power outlet, which is
installed in a dry location, with the proper rating and over-
current protection.