20IP18B
45
1 Close the gas service cock and disconnect the burner mani-
8.4
Cleaning
Before using chemicals and cleaning agents in the water
Always read the instructions on the bottle of the cleaning
The heat exchanger may become heavily soiled (soot for
Burner tray
The burner manifold and the gas regulator are connected by
means of a coupling.
Remove the burner for inspection as follows:
fold and gas regulator.
2 Release the two brackets which attach the burner to the
water heater frame.
3 Disconnect the spark plug, ionisation caps, servo-motor
plugs & solenoid value plugs and remove the ‘earth’ lead.
4 Carefully withdraw the burner from the water heater unit.
Inspect for dirt and clean the burner bars if necessary.
heater, please contact your supplier for advise.
agents before using them.
Heat exchanger (external cleaning)
Remove the baffles before cleaning the heat exchanger.
- Use compressed air when the heat exchanger is lightly
soiled.
- Use a stiff brush and soap when the heat exchanger is very
dirty, do not allow the refractory brick-work to get wet.
NB.
example), when the instructions are not followed properly.
This may be caused by:
- insufficient
ventilation
- condensate on the heat exchanger
If this is the case, clean the complete heat exchanger, including
the baffles. Furthermore, the cause of the problem should be
ascertained and rectified.
Heat exchanger (internal cleaning)
Descale the heat exchanger with suitable chemicals.
Filter inspection
When the pressure loss over the gas regulator gets too high,
the burner pressure will decrease noticeably. A dirty gas filter
may be the cause. The filter should be inspected at least once
every year. To allow access to the filter element, first remove
the side cover of the gas regulator assembly. Then remove the
filter and replace it if necessary. Replace the cover and check
for leaks.
Summary of Contents for ECONOPAK R2000
Page 6: ...20IP18B VI ...
Page 65: ...20IP18B 57 ...