Bosch Condens 2000F30 Regular boiler - Sensors; To Remove the Condensate Trap; Gas Valve

REPLACEMENT PARTS | 49
6 720 ... ... (YYYY/MM)Product Name
11.1.3 Sensors
▶ Check that the appliance is electrically isolated.
Flow temperature sensor [1]:
▶ Remove the connector.
▶ Release the sensor clip and withdraw the sensor.
▶ Apply heat transfer paste to the replacement sensor.
Safety temperature limiter [2]:
▶ Remove the connectors.
▶ Unscrew the sensor.
Flue Temperature limiter [3]:
▶ Remove the connector.
▶ Using a small terminal screwdriver, prise the sensor and grommet
from the plastic housing. Take care not to damage the plastic
housing.
Fig. 69 Sensors
11.1.4 To remove the condensate trap
▶ Release the hose clamp [1]
▶ Remove the screw retaining the trap [2]
▶ Pull the trap down to remove the trap from boiler
▶ Remove the end cap [3] and empty the condensate into a suitable
container
Fig. 70 Condensate trap
11.1.5 Gas Valve
▶ Check that the gas cock is turned off.
▶ Remove the air intake pipes, if fitted, pull down from the mixer
assembly to remove.
▶ Undo the union on top of the gas valve [1], within the inner casing.
▶ Push the pipe up into the mixer assembly until the pipe clears the
valve connection.
▶ Pull the pipe towards you, away from the gas valve and slide the pipe
out of the mixer unit.
▶ Remove the solenoid connections [2] at the side of the gas valve.
▶ Remove the two screws [3] securing the gas valve to the chassis
▶ Release the gas inlet union [4] at the valve inlet under the inner
casing.
▶ Remove the gas valve.
▶ Transfer the inlet pipe assembly to the new gas valve.
▶ Insert the end of the gas pipe into the mixer unit.
▶ Ensure that the bonded washer is in good condition, replace if
necessary, and fit between the gas valve and gas union.
▶ Locate the bottom of the gas valve onto the gas inlet union [4] and
hand tighten.
▶ Refit the screws the screws [3], removed earlier, to secure the gas
valve to the chassis.
▶ Tighten the gas union with the appropriately sized spanner
▶ Refit the air intake pipes, if required, push up into the mixer unit.
▶ Reconnect the solenoid plug onto the side of the gas valve.
▶ Check for gas tightness when the new gas valve has been fitted.
▶ Re-check the combustion performance.
▶ After re-assembly check the CO/CO
2
levels are as described in the
section “Setting the air/gas ratio”.
Fig. 71 Gas valve
1
2
3
6720809859-37.1Wo
6720809859-63.1Wo
2
3
1
1
2
4
3
6720809859-39.1Wo