Hydraulic Connections; Installation On The Hot Water Side - SenerTec Dachs MSR2 Instrucciones Para El Montaje, Puesta En Marcha Y Manejo

4. Hydraulic connections

4.1 Installation Hot Water Side
The hot water supply is connected to the couplings
at the top of the hot water module.
All fittings installed in the pipes must comply with
DIN 1988 (Technical Regulations for Drinking Water
Installations) and DIN 4753 (Water Accumulator and
Water Heating Systems for Drinking and Service
GB
Water). The fittings are shown in Fig. 4.1.
Shut-off valves to enable fittings or filter elements
to be replaced.
Drain valve in the cold water supply.
Pressure reducer to ensure that the permitted
operating pressure of the components (10 bar)
is not exceeded. It is recommended to install the
pressure reducer behind the water meter to ensure
that approximately the same pressure conditions
are maintained in the cold and hot water pipes of
the building.
Note: It is not only static pressure that is deci-
sive for the installation of the pressure reducer.
Pressure surges (e.g. due to flush valve) can
considerably exceed the static pressure in the
water.
*
**
*** flow rate regulation valve for 30 l/min is recommended
The safety valve has to be installed. We recommend to install it higher than
the top edge of the buffer vessel because it is protected from dirt and
calcination.
Fig. 4.1: Drinking water installation
24
Installation of the pressure reducer acc. to DIN 1988
For reasons of safety of the drinking water a filter is recommended
english
In accordance with DIN 4109, the line pressure
(static pressure at the tap) must not exceed 3.5 bar
in order to avoid unnecessary noise.
The cold water coupling must be equipped with a
type tested membrane safety valve. The safety
valve must not be closable. The drain pipe outlet
may not be plugged and must be arranged in such
a way that escaping water can be drained safely
and visibly. The safety valve should be mounted
in such a way that it is protected from dirt and
calcification.
The backflow preventer stops the reverse flow of
heated water into the cold water pipe.
A pressure gauge and a measuring point are
to be fitted in the supply pipe to the hot water
module.
We recommend fitting a flow control valve to
limit the max. water flow to 30 l/min.
cold water
Safety group acc. to DIN 1988
safety
valve