NGW 300 / LGW 300 / GBW 300
9 Repair
911
9.2.9 Replacing the heat exchanger
9.2.9.1 Dismantling
1. Dismount the heater (see 8.7.1.1).
2. Dismount the burner head (see 8.5.1.1).
3. Dismantle the temperature limiter (see 9.2.1.1).
4. Dismantle the regulating thermostat (see 9.2.2.1).
5. Pull the combustion chamber (1, fig. 909) out of the
heat exchanger (2).
6. Remove the heat exchanger (2).
7. Implement the measures for components, when the
system is disassembled (see 9.1.1).
9.2.9.2 Extension
1. Push the combustion chamber (1, fig. 909) into the
heat exchanger (2).
2. Install the temperature limiter (see 9.2.1.2).
3. Install the temperature regulator (see 9.2.2.2).
4. Mount the burner head (see 8.5.1.2).
5. Install the heater (see 8.7.1.2).
9.2.10 Replacing the combustion chamber
9.2.10.1 Disassembly
1. Dismount the burner head (see 8.5.1.1).
2. Pull the combustion chamber out of the heat
exchanger (2) and remove.
3. Implement the measures for components when the
heater is disassembled (see 9.1.1).
9.2.10.2 installation
1. Push the combustion chamber (1, fig. 909) into the
heat exchanger (2).
2. Mount the burner head (see 8.5.1.2).
Fig. 909 Replacing the heat exchanger and the combustion chamber
2
1
1 Combustion
chamber
2 Heat
exchanger
