58
17.4
CLEANING THE HEAT EXCHANGER
To clean the heat exchanger, the following procedure should be carried out:
1.
Remove the burners as above.
2.
Use a vacuum cleaner to remove any accumulation on the heating surfaces.
3.
Inspect the heat exchanger to ensure that the 1 mm flue way is clear between all coils.
4.
If any debris is still present, brush the heat exchanger with a non-metallic brush taking care not to damage the insulation panel on the
rear wall of the heat exchanger.
A kit of components to aid with cleaning the heat exchanger is available from Lochinvar Limited. For models SHW35-
245 use part number KIT30062 for SHW46-325CE– SHW116-410CE use part number KIT30063, for model SHW146-
410CE use part number KIT30064.
It is very important to inspect and remove all deposits from the heat exchanger. If all deposits cannot be removed
from the heat exchanger, contact Lochinvar Technical support for further guidance.
5.
Once the heat exchanger has been brushed it should be rinsed with fresh water to remove all residues.
6.
Remove the condensate water trap and clean out any debris.
7.
Refit the condensate drain and fully recharge by pouring 1 litre of water through the heat exchanger coils.
8.
Reinstall the burner.
9.
Restart the heater as detailed in Section 15.4.3:
PROCEDURE FOR INITIAL LIGHTING.
17.5
DRAINING THE WATER HEATER SYSTEM
Maintenance and service procedures for the storage vessel require draining the water heater. The water heater must also be drained if it is to
be shut down and exposed to freezing temperatures.
1.
Turn off the water heater by pressing and holding the Up button for 5 seconds.
2.
Connect a hose to the system drain valve.
3.
Locate hose’s discharge in an area where hot water will not cause any damage or injury.
4.
Close the cold-water inlet valve to water heater system.
5.
Open a nearby hot water outlet to vent the system.
6.
Open the drain valve.
7.
If the water heater is being drained for an extended shutdown, it is suggested the drain valve be left open during this period.
Note: The heat exchanger cannot be completely drained of water without purging with compressed air at a pressure
of 1 bar.
17.6
STORAGE VESSEL: INSPECTION AND CLEANING
1.
Drain the heater. Refer to Section 17.5: DRAINING THE WATER HEATER SYSTEM.
2.
Remove outer cover plate from lower side of water heater jacket.
3.
Remove cover and gasket from cleanout opening.
4.
Remove scale or sediment using care not to damage the vitreous enamel lining.
5.
Inspect cleanout plate gasket and replace if necessary.
6.
Install gasket and cleanout plate. Draw plate up square by tightening screws evenly.
Summary of Contents for EcoShield SHW116-410CE
Page 2: ...2 ...
Page 9: ...9 EXPLODED VIEW DRAWINGS ...
Page 27: ...27 Max distance between brackets ...
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Page 34: ...34 ...
Page 47: ...47 13 9 LADDER DIAGRAM LADDER DIAGRAM ...
Page 71: ...71 NOTES ...
Page 72: ...72 N ...
