Safety Unit (Only For France); Hydraulic Connections; Hydraulic Connection Of The Primary Circuit (Exchanger Circuit); Connecting The Tank To The Domestic Water Circuit (Secondary Circuit) - DeDietrich BPB 150 Installation, User And Service Manual

Fig.11
30
b
a
c
d
e
6.5

Hydraulic connections

300027336 - v06 - 13062019
6.4.4
29 9 28
2 cm
(54)
MW-C000711-F
6.5.1
For the hydraulic connections of 200 L to 500 L tanks to the boiler (on the
left- or right-hand side), use the hydraulic connection kits provided as
optional extras.
For connection using these kits, refer to the instructions delivered with
them.
6.5.2
During connection, it is imperative that the standards and corresponding
local directives be respected. Insulate the pipes to keep heat losses to a
minimum.
Belgium: Make the connections in accordance with Belgaqua technical
instructions.
Before making the connection, flush the drinking water inlet pipes in order
not to allow metal or other particles into the appliance's tank.
Make the connections according to the requirements of the Société Suisse
de l'Industrie du Gaz et des Eaux Comply with local requirements from
water distribution plants.
France: We recommend NF-marked hydraulic diaphragm safety units.

Safety unit (only for France)

9 Isolation valve
28 Domestic cold water inlet
29 Pressure reducer
30 Safety unit
54 End of the discharge pipe free and visible 2 to 4 cm above the flow
funnel
a Cold water inlet with an integrated non-return valve
b Connection at the cold water inlet of the DHW tank
c Stop cock
d Safety valve 0.7 MPa (7 bar)
e Drain opening
Hydraulic connection of the primary circuit (exchanger
circuit)
For more information, see
Hydraulic installation diagram, page 15
Connecting the tank to the domestic water circuit
(secondary circuit)
Specific precautions
Provision for Switzerland
Safety valve
Caution
In accordance with safety rules, a safety valve calibrated to 7 bar
(0.7 MPa) is mounted on the domestic hot water tank's domestic
cold water inlet.
Integrate the safety valve in the cold water circuit.
Install the safety valve close to the DHW tank in a place with easy
access.
Sizing
The diameter of the safety unit and its connection to the tank must be at
least equal to the diameter of the domestic cold water inlet on the tank.
6 Installation
BPB 150...501 17