Removal Of Burner; Heat Exchanger Inspection / Cleaning; Removal Of Condensate Trap - Keston HEAT 2 45 Installation & Servicing

3.5 REMOVAL OF BURNER

1. Refer to Section 2.32.
2. Remove the front panel. Refer to Section 3.2.
3. Remove the fan and gas valve assembly. Refer to
Section 3.3.
4. Remove the four or six screws and the two extended
nuts securing the burner to release the burner body.
5. Lift the burner body by lifting out of its recess.
6. The burner can now be cleaned on the back face
only, the metal fibre surface must not be touched. The
burner must be replaced if it shows signs of damage.
7. After cleaning the burner replace it in the recess and
check the burner body seal for signs of damage.
If damage is apparent it must be replaced. The
upstream (stainless steel) side may be cleaned of dust
and debris.
8. Reassemble in reverse order. Ensure the notch in
the burner aligns with the up-stand feature in the
heat engine. The four or six screws and 2 extended
nuts should be fitted following a diagonal tightening
sequence twice. All fittings should be secured firmly.
9. Check the operation of the boiler (Refer to Section
2.32).

3.6 HEAT EXCHANGER INSPECTION / CLEANING

1. Refer to Section 2.32.
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.
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 flue ways.
7. Reassemble in reverse order replacing all gaskets.
8. Check the operation of the boiler. Refer to Section 2.32.

3.7 REMOVAL OF CONDENSATE TRAP

1. Refer to Section 2.32.
Unscrew the nut and disconnect the flexible pipe.
2.
3. Unscrew the top nut and remove the condensate trap.
Remove the ball from the condensate trap and flush out with
4.
water to remove any debris.
5. Reassemble in reverse order.
6. Check the operation of the boiler. Refer to Section 2.32.
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SECTION 3 - SERVICING
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PLAN VIEW
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Installation & Servicing