Buderus Logamax plus GB142-24 Servicing Instructions page 112

8 Actions
 Remove the plastic cover from the top of the boiler (see fig. 70).
 Remove the float cap (see fig. 71).
 Dismantle the valve case by pulling it upwards through the
opening in the housing (see fig. 72).
 Assemble the new valve case and all other parts in reverse
order of disassembly.
NOTICE
Fill and purge the Logamax plus GB142 as
required.
See installation and maintenance instructions
Logamax plus GB142-24/30/45/60.
 Fit the casing.
 Switch on the power supply of the heating system on the circuit
breaker.
 Set the main switch on the BC10 to "1" (On).
112 Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
fig. 70 Removing the plastic cover of the automatic air
purging system
fig. 71 Removing the float cap
fig. 72 Dismantling the valve case for the automatic air
purging system