RBI Infinity Energy 2, Руководство по установке

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8 - INSTALLATION - IW water connections
CAUTION!!!
Size your water
system in a way to respect the
minimum water flow in function
of the water hardness (See
Figure 8-4) to prevent scaling
inside the heat exchanger.
Figure 8-4 show an example where
you are in possession of a water
heater model 1000 and in presence
of water with hardness of 16 gr/gal. In
this case, as showned by the graph,
the minimum water flow is 65 GPM.
CAUTION!!!
Size your water
system in a way to never
increases above the maximum
water flow expected by Figure
8-4 to prevent erosion inside
the copper pipes of the
appliance.
8.4 - Minimum and
maximum water
flow
The water heater pressure drops
(see Figure 7-3) is based on potable
water with a hardness of 5 to 17.6
grains per gallon and a total dissolved
solids (TDS) not exceeding 310
ppm. Consult the manufacturer when
heating potable water exceeding
these specifications.
CAUTION!!!
Water with a
hardness of less than 5 grains
per gallon will usually have a
pH which can be aggressive
and corrosive causing damage
to the heat exchanger and/or
heater piping.
Figure 8-4 Minimum / maximum Water flow in relation to the water hardness
SOFT
W
ATER
NORMAL
W
ATER
HARD W
ATER
199
399 - 500
750 1000