Wolf CGB-11 Installation Instructions Manual page 16

Condensate connection
First pivot the control unit cover down. Undo the r.h. and l.h.
screw as shown in the figure; unhook the casing cover at the
top and remove. Push the tab on the control unit casing inwards
and remove the casing. Connect the supplied sealed siphon
to the connector on the condensate pan.
The condensate may be routed into the siphon below the safety
valve, if neutralisation is not required.
Connect the supplied sealed siphon to the connector on the
condensate sump.
The condensate may be routed into the siphon below the safety
valve, if neutralisation is not required.
If condensate is directly routed to the public sewer, ensure
ventilation, so that the public sewer cannot affect the con-
densing boiler.
Observe the enclosed instructions if you install a neutralising
system (accessories).
The Code of Practice M251 prescribes no neutralising system
for boilers up to 200 kW.
If a neutralising system is used, the national regulations regar-
ding the disposal of residues from such systems apply.
There is a risk of poisoning through flue gases
being expelled, if the appliance is operated with
an empty siphon. Therefore, fill the siphon with
water prior to commissioning. Undo the siphon,
remove it and fill it until water runs out of the
drain hole on the side. Refit the siphon and
ensure the gasket seals tightly.
Information regarding scaling from the VDI 2035:
Scaling can be strongly influenced particularly through the
method of commissioning. If the system is heated up with a
low output, or slowly in stages, the possibility can arise that the
lime not only settles in the hottest spots, but is also distributed
evenly across the entire system, even forming sludge deposits.
For multiboiler systems it is recommended to commission all
boilers simultaneously to prevent the overall amount of lime
concentrating on the heat exchanger surface of an individual
boiler. If appropriate, start with the screed drying program. The
ÖNORM H5195-1 specifies that a hardness level of 17° dH
is not exceeded.
Connection of a Wolf DHW cylinder
If a DHW cylinder is connected to the gas fired boiler, replace
the pipe bends in the central heating flow with a three-way
diverter valve from the Wolf accessory range, and remove the
dummy plug from the junction of the heating return. A detailed
description is included with the connection set (accessories).
16
Installation
Fig.: Open the rotating locks
Fig.: Push in the tab
Fig.: Siphon
Fig.:
Connection set for Wolf cy-
linder CSW-120
subsurface installation
(accessories)
Siphon
If the boiler is operated with an empty siphon there
is a danger of poisoning by evading flue gas. There-
fore fill siphon with water prior to commissioning.
Unscrew, remove and fill up siphon until water eva-
des from lateral connection. Fit siphon again and
take care for proper position of the gasket.
Fig.:
Connection set for Wolf cylinder
CSW-120
surface installation
(accessories)
rotating lock
Tab
3061344_201509