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Webasto Product N.A., Inc.
DBW 2010/2020/300 COOLANT HEATERS
REPAIR
9.2.17 C
OMBUSTION
C
HAMBER
, R
EPLACEMENT
9.2.17.1 R
EMOVAL
1. Swing burner head open (see Sec. 8.5.1).
2. Withdraw combustion chamber (Fig. 50) from heat
exchanger and remove.
NOTE:
The DBW 2010 burner tube may
require careful prying around the parameter of
the tube to release it from the heat exchanger
(see Fig. 49).
Figure 49:
DBW 2010 Burner tube removal
3. Perform procedures on components after
disassembly (see Sec. 9.1.1).
NOTE: DBW 2010 Only:
In case the
combustion air swirler has been damaged,
distorted or melted by high heat of a burn-back
condition, the complete combustion chamber
and the flame detector must be replaced.
9.2.17.2 I
NSTALLATION
1. Slide combustion chamber fully into the heat
exchanger.
2. Swing burner head closed (see Sec. 8.5.1).
Figure 50:
Burner tube replacement
9.2.18 H
EAT
E
XCHANGER
, R
EPLACEMENT
9.2.18.1 R
EMOVAL
1. Disconnect cables from temperature control
thermostat, temperature limiter and overheat fuse.
2. Detach cables from heat exchanger.
3. Remove burner head (see Sec. 9.2.5).
4. Withdraw combustion chamber from heat
exchanger.
5. Remove heat exchanger.
6. Perform procedures on components after
disassembly (see Sec. 9.1.1).
NOTE:
It is important that the heat exchanger
and combustion chamber are cleaned and
inspected periodically and at least annually.
9.2.18.2 I
NSTALLATION
1. Slide combustion chamber fully into heat exchanger.
2. Install burner head (see Sec. 9.2.5).
3. Attach cables to heat exchanger
4. Install and connect temperature control thermostat,
temperature limiter and overheat fuse.
Figure 51:
Heat exchanger replacement
DBW 2010 burner tube
removal. Carefully pry
out with screw driver.
DBW 2010
DBW 2020/300
DBW 2010
DBW 2020/300
