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ROTEX GCU compact -

Set-up and installation

4.2.2 Operation partially independent of ambient air

Alternative to set-up variant 5

The ROTEX GCU compact is operated with separately routed
inlet air/ flue gas lines (2 line system).
–

Combustion air inlet is routed from the outside via the ade-
quately sealed inlet air through the external wall. The air inlet
line should be sized so that the

suction resistance

at nomi-

nal power is

less than 50 Pa

–

Flue gas dissipation to the outdoors is via the chimney or an
installation shaft. If the connection line between the ROTEX
GCU compact and the installation shaft is single-walled or is
not completely surrounded by combustion air, a

ventilation

opening

of at least

150 cm

is required.

Appropriate measures must be taken to ensure that the
burner cannot be operated if the ventilation opening is closed.

–

The installation shaft where the flue gas line runs must be rear
ventilated. In the lower area there must be a rear ventilation
opening of at least

150 cm

must be provided.

The cross-section of the installation shaft must be sized so
that

between the external wall of the flue gas line

and the

internal face of the installation shaft

the following

mini-

mum distance

must be maintained:

–

with a rectangular shaft cross-section:

2 cm

–

with round shaft cross-section:

3 cm

The rear ventilation opening must not be in rooms where a
positive pressure is generated (e.g. by controlled apartment
ventilation, a tumble-drier etc.).

4.2.3 Ambient air dependent operation

Set-up version 6

The ROTEX GCU compact can be connected even with venti-
lation and air-conditioning. Thereby, only the inner flue gas pipe
(plastic pipe Ø 60 mm) of the concentric air-flue gas pipe is con-
nected to the flue gas line. The device sucks the combustible air
from the installation room through the ring-shaped gap of the
jacket pipe.

For the flue gas routing to the outdoors, the shaft sizing and the
rear ventilation, the same conditions apply as in section 4.2.2.

ventilation opening

to the outside of

150 cm

imperative

4.3

Transport and delivery

The ROTEX GCU compact is delivered on a pallet. All industrial
trucks, such as lifting trucks and forklift trucks, are suitable for
transporting it.

Scope of delivery

–

ROTEX GCU compact (preassembled),

–

Bag of accessories (see fig. 4-8),

–

Outside temperature sensor (

RoCon OT1

), for weather-con-

trolled regulation.

–

Document pack.

Recommended accessory

–

Safety group (

SGB GCU compact,

15 70 46

) with pres-

sure gauge, safety valve, automatic bleeding, filling cock,
connection fittings).

Additional accessories see ROTEX price list.

4.4

Installing the Gas Combi Unit compact

4.4.1 Selecting the installation site

The place of installation for the ROTEX GCU compact must meet
the following minimum requirements.

Installation surface

–

The base must be level and smooth and have a sufficient

ground load-bearing capacity

, of

1050 kg/m²

plus safety

factor. Install a pedestal if necessary.

–

Observe the set-up dimensions (see section 4.1).

Installation room

–

There are no special conditions for ventilation of the installa-
tion room for operation independent of the ambient air (using
a concentric air/flue system).

–

In the event of limited room-air independent operation and in
the event of room-air dependent operation, the installation
room must have a ventilation opening of at least

150 cm

the outside. If the flue gas line goes via an installation shaft to
the outside, it must be rear ventilated (see section 4.2.2).

–

For partial ambient air-independent and for ambient air-
dependent mode, the installation room must be free from
aggressive vapours (e.g. hair spray, perchloroethylene, car-
bon tetrachloride), heavy dust formation and high atmos-
pheric humidity (e.g. washhouse).

–

Outdoor installation

is only possible to a limited extent. The

storage tank must

not be

exposed

to continuous direct

sunlight

, as the UV radiation and the effects of the weather

will damage the plastic.

–

Installation room must be continuously protected from frost.

In some cases, the resonance in the flue system can
amplify the noise at the mouth of the flue gas pipe. The
noise level can be effectively reduced with the applica-
tion of a silencer (

E8 MSD,

15 45 78

bzw.

E11 MSD,

15 45 79

WARNING!

The ROTEX GCU compact is top heavy when not
filled, it can tilt over during transport. This can pose a
risk to persons or damage the machine.

Correctly secure the ROTEX GCU compact,
transport carefully, use the handles.

Handles (only required for
transport)

Cover screen

Hose connection piece for
safety overflow

Spanner