3.6 HEAT EXCHANGER INSPECTION / CLEANING
1. Refer to Section 2.33.
2. Remove the front panel. Refer to Section 3.2.
3. Remove the fan and gas assembly. Refer to Section 3.3.
4. Remove the burner. Refer to Section 3.5.
5. Remove the ignition and detection electrodes. Refer to
Sections 3.12 & 3.13.
6. Inspect the heat exchanger for signs of aluminium oxide
deposits. If necessary clean the heat exchanger by
spraying water down the ue ways.
7. Reassemble in reverse order replacing all gaskets.
8. Check the operation of the boiler. Refer to Section 2.33.
1. Refer to Section 2.33.
2. Remove the front panel. Refer to
Section 3.2.
3. Prepare boiler for possible condensate
spillage during the process.
4. Remove the two screws from the
helmholtz / sump cover and pull away
from the boiler.
5. Scrape out any deposits.
6. Reassemble in reverse order replacing
all gaskets.
7. Check the operation of the boiler.
Refer to Section 2.33.
3.7 REMOVAL OF CONDENSATE TRAP
Models 30 / 80 / 100
Models 40 / 60 / 120 / 150
3.8 REMOVAL OF SUMP COVER
1. Refer to Section 2.33.
2. Unscrew the nut and disconnect the exible pipe.
3. Unscrew the top nut and remove the condensate trap.
4. Remove the ball from the condensate trap and ush out with
water to remove any debris.
5. Reassemble in reverse order.
6. Check the operation of the boiler. Refer to Section 2.33.
3
4
2
PLAN VIEW
30/40kW shown
54
Installation & Servicing
SECTION 3 - SERVICING
SERVICING
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