Instruction Manual - Rehau P HKV-D Notice De Montage

2

INSTRUCTION MANUAL

Instructions for use and important information.
A
Important information about function. Failure to heed can
V
impair function.
Legal information.
U
Personnel requirements
U
Prior to starting work, the fitter must read, understand and
heed these installation and operating instructions.
P HKV-D manifolds for underfloor heating may only be installed,
adjusted and maintained by trained specialists. Trainees may
only work on the product under the supervision of an experienced
person. Only if the above instructions have been adhered to will the
manufacturer accept any liability in line with statutory provisions. Every
instruction contained in these installation and operating instructions is
to be heeded when using the P HKV-D manifolds.
Correct use
V
P HKV-D manifolds are used for distributing and regulating
the volume of flow in low temperature underfloor heating systems
and underfloor cooling systems inside buildings. The installation of
P HKV-D manifolds must take place inside buildings, sheltered from
weather conditions.
P HKV-D manifolds are to be operated using heating water as per VDI
2035. In the case of systems, the heating water of which contains
corrosive particles or other contaminants, dirt traps or filters with a
mesh size of no more than 0.8 mm are to be fitted in order to protect
the measuring and control devices.
The max. permissible continuous operating pressure is 6 bar. The
max. permissible test pressure is 9 bar.
Using the manifolds for any purpose other than that set out in these
instructions constitutes improper use. The manufacturer accepts no
liability for damage resulting from improper use of the manifolds.
For safety and guarantee reasons, no conversion or modification is
permitted.
The manufacturer accepts no liability if connections and accessories
made by other manufac-turers are used.
Installation / Commissioning
A
Installation in manifold cabinet:
The manifold headers are fitted to the sliding C profile rails, using the
supplied bolts. Please heed the relevant installation instructions.
Hydraulic connections:
P HKV-D manifolds are supplied with a 1" ball valve set plus a flush-
and-fill unit.
The manifold headers each have a G 1" male thread for fitting the
ball valve and the flush-and-fill unit, with flat joints. Tighten the
compression nut with an SW 27 open-ended spanner/ring spanner,
holding the manifold. When connecting pipes to connections, please
see our pipe installation instructions.
Flushing and filling the heating circuits:
Hoses with 3/4" connections tubes are screwed to the hose of the
feed taps to fill the heating circuit manifold. Slowly open and close the
valves connections to operate the flush-and-fill unit.
Flushing
V
During the filling and flushing process, the 1" ball valves on the
flow and return headers must remain closed, otherwise the high water
pressure might damage the heating system or might acti-vate the
safety valve. Only fill and flush the manifold in the direction of flow!
Please avoid high differential pressure (> 1 bar) and pressure shocks.
Flushing
V
If a mixing unit (art. 218138-001 or 218139-001) with or
without high temperature breaks is installed at the manifold, you must
remove the brackets on which the manifold is installed and use the
collars provided in the packaging of the mixing unit, in order to get the
right interaxle spacing.
5