4
x
Set-up and installation
4.6.3 Connect the condensate drain
The condensation arising during cooling of combustion gases in
the boiler and in the flue gas system is directed to the storage
tank container via the condensate pipe, is neutralised in it through
permanent neutralisation filling, and is then discharged via the
safety overflow pipe (fig. 4-24) to the drains.
●
Condensation drain pipe (not included) with free inflow to the
drains connection.
●
The complete outlet must not be lockable and must discharge
the condensation and any medium leaking due to damage
(drinking water, buffer or heating water) outwards visibly (e.g.
hose to flow drain or transparent outlet pipe).
●
A siphon filled with water must be used to prevent loss of heat
and water (see fig. 4-24).
●
Check the condensate drain section for leakage.
4.6.4 Installation of the DB connection kit
(
141590)
The optional DB connection kit allows better access for con-
necting the DrainBack pipe (solar feed).
4.6.5 Installation of the P connection kit (
141589)
The optional P connection kit for Biv device types allows better
access for connecting the supply and return lines of a pressurised
solar system or another external heat generator on the storage
tank. The kit contains two thermally insulated corrugated pipes
that are connected to the connections of the storage tank via a
union nut. At the other end of the corrugated pipes there is an
adapter for different connection sizes of the supply and return
pipes.
WARNING!
There is a danger of scalding at hot water temperatures over
60 °C. This is possible when using solar energy if an external
heater is connected, the Legionella protection is activated, or
the target hot water temperature is set to be greater than 60 °C.
●
Install a scald protection (domestic hot water mixer device
(e.g.
VTA32,
15 60 16
)).
Fig. 4-24 Connection of the condensate overflow pipe
A
DB pipe connection (solar
feed)
B
FlowSensor (not part of the
DB connection kit, but includ-
ed with RPS4)
C
Flow limiter (FlowGuard)
D
Solar feed connection
on the storage tank
Fig. 4-25 DB connection kit
(example on GCU compact 5xx)
A
Connection for supply (red)
B
Connection for return (blue)
Fig. 4-26 P-connection kit for Biv device types
(example on GCU compact 5xx Biv)
Summary of Contents for GCU compact 315
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