10.1.3 Filter In Cold Water Pipe; 10.1.4 Plate Heat Exchanger - Worcester GREENSTAR 24 Installation, Commissioning And Servicing Instructions

Clean the heat exchanger with the brush as follows:
1. Move the brush up and down as far as possible
2. Rotate the brush in both directions
3. Undo screws from inspection cover and remove cover.
Fig. 72
▶ Remove any residue and refit inspection cover.
▶ Refit the baffles.
▶ Undo the condensation trap and place a suitable container
underneath.
▶ Flush out the heat exchanger with water from the top.
Fig. 73
▶ Remove the inspection cover again and clean the condensate pan
and connection.
▶ Refit the components in reverse order.
▶ Reconnect the power cable and earth to the fan.
▶ Reconnect the ignition and flame monitoring electrode leads.
▶ Check the fan pressure ( page 40)
▶ Adjust the gas-air ratio ( page 39).
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1.
3.

10.1.3 FILTER IN COLD WATER PIPE

▶ Undo cold water pipe and check filter for debris.
1. Release the clip securing the cold water pipe.
2. Disconnect the cold water pipe.
3. Remove the gauze filter, check for debris and clean if necessary
1.
3.
Fig. 74 Cold water filter

10.1.4 PLATE HEAT EXCHANGER

If the DHW output is inadequate:
▶ Check filter in cold water pipe for debris ( Fig. 74).
▶ Remove plate heat exchanger and replace
-or-
▶ Desolate with a product that has been approved for stainless steel.
To remove plate heat exchanger:
1. Remove screw at the top of the heat exchanger.
2. Remove the heat exchanger.
▶ Fit new heat exchanger with new seals and secure with screw.
1.
2.
Fig. 75
Inspection/Maintenance
2.
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