Description; Dimensions And Individual Component Description Ddv 25 / Ddv 32 - GDD DDV 25 Mode D'emploi

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Description

The DDV dual differential pressureless manifold functions like an
interface between the heat pump, the heating distribution sys-
tem, the buffer tank and, in some cases, even the domestic hot
water cylinder. In order to simplify the installation, a compact sys-
tem is used rather than multiple different components.
Consisting of 2 stop-cocks, 2 bypass pipes with return flow inhib-
itor (2000 Pa start-to-leak pressure), safety module with pressure
gauge and connection options for expansion vessel. Installation
2 Dimensions and Individual Component Description
DDV 25 / DDV 32
Scope of Delivery DDV 25
1) Connection heating circuits 1 1/2" F
2) Connections for heat pump 1 1/4" external thread
3) Position charge pump DN 25 (not contained within the
scope of delivery)
4) Connectors buffers 1 1/4" F
5) Connections for hot water storage system 1 1/4" external
thread
6) Turn cock 1"
6.1) Stop cock 1" with non-return flap valve
7) Pressure gauge
8) Safety valve 3/4" F
9) T-piece for assembly of the expansion tank 3/4" external
thread
10) One-way valve
11) Immersion sleeve for return sensor (observe sensor charac-
teristics)
12) Insulation
13) Double nipple 1"
Temperature sensor NTC 10 and NTC 2 is included in the scope
of supply!!!
Scope of Delivery DDV 32
1) Connection heating circuits 1 1/2" F
2) Connections for heat pump 1 1/4" external thread
3) Position charge pump DN 32 (not contained within the
scope of delivery)
4) Connectors buffers 1 1/4" F
5) Connections for hot water storage system 1 1/4" external
thread
6) Turn cock 1 1/4"
6.1) Stop cock 1 1/4" with non-return flap valve
7) Pressure gauge
8) Safety valve 3/4" F
9) T-piece for assembly of the expansion tank 3/4" external
thread
10) One-way valve
11) Immersion sleeve for return sensor (observe sensor charac-
teristics)
12) Insulation
13) Double nipple 1 1/4"
Temperature sensor NTC 10 and NTC 2 is included in the scope
of supply!!!
EN-2
option for circulating pump (pump not included in the scope of
supply).
To reduce the pump operating times, the heat circulating pump is
only operated with the compressor. In this case, the return flow
sensor included in the scope of supply must be installed in the
immersion sleeve provided, and connected. The consumer cir-
cuit requires a separate circulating pump due to the hydraulic iso-
lation.