Filling The Condensate Trap - Bosch 520PN Applications Manual

28 | Installation instructions
Fig. 33 Plumbing Connections (with shutoff valves) and Pressure Relief
Valve
[1] Pressure relief valve

4.11 Filling the condensate trap

The condensate trap can be filled before or after connecting the vent
pipe.
Filling the condensate trap before vent pipe installation
WARNING:
▶ Prior to initial start up, and after appliance has been
out of use for a long time or after cleaning the siphon,
make sure that you fill the condensate trap with
water. This is to prevent dangerous exhaust gases
from entering the building.
▶ Fill the condensate trap by pouring approx.14 oz. (400ml) of water
into the exhaust accessory on the top of the appliance, see fig. 34.
Fig. 34 Filling the condensate trap at start up
Filling the condensate trap after vent pipe installation
After appliance has been out of use for a long time or after cleaning
siphon, refill the condensate trap with water.
Please proceed as follows:
▶ Remove front cover, see fig. 4, page 8.
▶ Open the four clips and remove the combustion cover, see fig. 5, page
9.
6 720 644 887 (2013/02)
▶ Remove the clip and disconnect the drain tube, see fig. 35.
Fig. 35 Disconnect drain tube
▶ Fill the condensate trap by pouring approx.14 oz. (400ml) of water
into the top of the drain tube. To avoid damage to the appliance use a
funnel in this operation, see fig. 36, page 28.
Fig. 36 Filling the condensate trap after installation
▶ Loosen the three screws of the control unit.
Fig. 37
▶ Put the control unit in service position by engaging its tabs with the
holes in the bottom horizontal sheet metal, see fig. 38.
C 1210 ES/ESC