14
6.
Never connect a unit to the water supply and return lines without completely
cleaning and flushing out the hydraulic loop beforehand.
After performing these
operations, the units must be connected, with all valves completely open, ready for the system
to be filled with water.
COMMENT:
In order to limit clogging the plate heat exchanger and to optimise unit operation,
it is advisable to equip the system with a
sieve filter
(Ø 0.8 mm) on the unit water inlet pipe work.
This filter should be installed between two isolation valves and should remain accessible to the user
for periodic checks.
7. Use steel, copper or P.V.C. pipes for the condensates drainage pipe. Each unit is supplied with a
connector for condensates drainage.
8. The condensates drainage line must comprise a siphon and run from the unit on a downward slope
of at least 2%. Generally, the siphon is connected directly to the unit’s condensates drainage outlet.
A length of plastic pipe can be used between the siphon and the condensates drainage line.
A complete condensates drainage system with copper or P.V.C. pipe can also be used.
Screw-on connectors shall be fitted to facilitate drainage pipe removal if copper pipe is used for the
drainage pipe work.
9. No point of the condensates drainage pipe work should be located above the level of one of the
units’ condensate drainage outlet connection.
10. The circuits’ high points must be bled of air.
11. Comply with current regulations in terms of dielectric isolation of the connectors and the pipe
work.
40mm
2%mini
40mm
Ø 16mm
Содержание HRW 07
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