Fitting The Trap - Wolf FGB-K Series Installation And Maintenance Instructions For Contractors

Condensate drain connection
Please note
The trap must be fitted before commissioning the appliance.
The trap included in the standard delivery must be fitted
from underneath the appliance. Before installing, apply
silicone grease to the sealing collar. After insertion, secure
the screw fitting of the trap to the connector and check the
connection is firm. Secure the sealing collar.
Ensure that the sealing collar seals the casing base.
The drain hose must be safely secured above the tundish
(trap).
If the condensate is directly routed to the sewer pipe, provide
a ventilation facility. This is to prevent retroactive effects from
the sewer pipe to the gas condensing boiler.
If installing a neutralising system (accessories), observe the
instructions supplied.
According to Code of Practice ATV-DVWK- A251, no
neutralising system is required for condensing boilers up to
200 kW.
If a neutralising system is used, the national regulations
regarding the disposal of residues from such systems apply.
The trap is filled via the flue; see chapter 18 "Filling the
heating system / trap".
The trap must be filled with water prior to
commissioning. Operating the appliance with
an empty trap presents a risk of poisoning
or asphyxiation due to flue gases escaping.
Unscrew the trap, remove and fill until water
runs out of the drain hole on the side. Refit
the trap and ensure the gasket seals tightly.
Note:
The condensate hose attached to the trap must not form a
loop or roll up, as this could lead to impaired operation.
Before commissioning, carry out a tightness
test on all hydraulic pipework:
Test pressure on the DHW water side max.
10 bar
Test pressure on the heating water side max.
4.5 bar
20

12. Fitting the trap

Fig: Trap
Condensate pan connector
Tundish for drain hose
Sealing collar
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