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We reserve the right to make any changes due to technical modifications!
Installation and Servicing Instructions Logamax plus GB142-24/30/45/60 • Version 12/2004
Buderus Hydronic Systems • http://www.buderus.net
Servicing14
14.29 Heat exchanger; replacing
z Disconnect the heating system from the power
supply, remove the main fuse or switch off the circuit
breaker.
z Close the maintenance shut-off valves and drain the
Logamax plus GB142.
z Set the main switch on the BC10 to "0" (Off).
z Remove the casing.
z Close the gas shut-off valve (see fig. 115, pos. 1).
z Remove the cable plug from the gas control valve
(see fig. 116, pos. 1).
z Remove both cable plugs from the fan unit
(see fig. 117, pos. 1).
Fig. 115 Gas shut-off valve closed (1),
gas shut-off valve open (2)
Fig. 116 Replacing the gas control valve
(e.g. HONEYWELL gas control valve)
1
Fig. 117 Disconnecting the cable plug from the fan unit
1
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