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For grounding purposes, one or two metallic clip(s) is/are
attached to the cabinet drain connection stub (s. fig. aside)
making contact to the pump drain hose end (14) and the HyFlow
drain hose (66), if present. When water flows through the pump
drain hose during blow-down or in case of a HyFlow overflow,
any stray current that might have built up in the drain water is
grounded.
Between the pump drain hose jacket and the inner surface of the
cabinet drain connection, a gap exists due to the diverging dia-
meters. If water collects on the base plate, it will flow through
this gap into the drain hose and then into the drainage system.
6.4 HyFlow Provision (Special order unit types)
HygroMatik HyLine and CompactLine humidifiers are available
featuring the certified plastic HyFlow system separator (DVGW
CERT AS-0625CP0094 for HyLine, DVWG CERT AS-
0625CP0095 for CompactLine).
The functions of the HyFlow cup are:
•
cylinder filling
•
separation of feed water supply and cylinder water,
according to DIN EN 1717
•
overflow protection in case of cylinder intake blocking
Cylinder filling
When the solenoid valve opens, water flows into the HyFlow cup
and then into the cylinder base.The cylinder is filled by the static
pressure of the water column.
Overflow protection
If the water level in the HyFlow cup gets too high, water flows
over a partition panel into the draining system. In the unlikely
case of both the cylinder intake and the drain being blocked, the
water flows out through the overflow breakout and leaves the
device through the wastewater hose. Contamination of the drink-
ing water is thus excluded.
Grounding clip(s)
Drain hose (14)
from pump
Cabinet drain
connection stub
for HyFlow
overflow
hose
connection
Ø 10 Overflow/drain to
wastewater system
Ø 14 Drain to cylinder
base
Ø 8 Filling from
solenoid valve
Overflow in case of
blocking