Elson coral e Installation, Servicing And User Instructions Manual Download Page 7

7

Coral E

9. FAULT FINDING

8. WIRING DIAGRAMS

8.1 Upper immersion heater

8.2 Lower immersion heater

Note: The mains supply to the upper heater must be via
a suitable controller which will not allow the heater to be
left on continuously. See Important Note 2 on page 3.

Item

Limit thermostat ................................................... 10010002
Control thermostat ............................................... EP051016
Standard immersion heater - complete (2 off) ...... 90100001
Blending valve - complete .................................... EP100071
Runback timer ..................................................... EP09101

Part No.

7. SPARE PARTS LIST

The following specialist spare parts for the Coral E are readily available from Elsy & Gibbons Limited:-

7.

Check that the control thermostat setting is correct for maximum performance (top at 75°C and bottom
at 85°C). The bottom thermostat may have been reduced slightly (not below 75°C) where it is known that hot
water demand will not be high.

8.

Replace the covers.

Summary of Contents for coral e

Page 1: ...e instructions with the User ForTechnical Help or Sales queries contact 0191 4270777 COMPLIES WITH PART L BUILDING REGULATIONS Elson is a member of the Benchmark initiative and fully supports the aims of the programme Benchmark has been introduced to improve the standards of installation and commissioning of central heating systems in the UK and to encourage the regular servicing of all central he...

Page 2: ...ng the blending valve see section 5 2 The blending valve is fail safe in the event of a mains water supply failure The unit is designed to provide maximum performance and efficiency with the thermal store being heated overnight via the bottom immersion heater using the low price off peak tariff The top immersion heater used for daytime Boost is fitted directly underneath the coils allowing for fas...

Page 3: ...event of thermostat failure therefore preventing permanent damage to the unit Note If a runback timer is not fitted and the unit is damaged due to boiling the damage will not be covered by the product guarantee 3 For optimum performance we recommend a dedicated 22 mm mains cold water supply to the unit and a 15 mm hot water outlet If the mains cold water supply pressure is less than 1 bar we recom...

Page 4: ...recommended 4 2 Electrical connection Refer to wiring diagrams in section 8 All electrical wiring must be carried out by a qualified electrician and must be in accordance with BS 7671 Regulations for Electrical Installations IEE Wiring Regulations and any local regulations which apply The mains supply required is 230 240 V 50 Hz each heater fused at 13 A Ensure the electricity supply has been isol...

Page 5: ...work turn on the mains water supply and the thermal store will fill with water via the internal feed and expansion tank 2 Vent the hot water pipework by opening a hot tap 3 Check the immersion heaters and all connections for water soundness rectifying where necessary 4 Check the water level in the feed and expansion tank is to the marked water line If necessary adjust the float operated ball valve...

Page 6: ...ssemble the valve and re set the temperature as described in section 5 2 6 2 To replace the overheat limit thermostat 1 Switch off the electricity supply to the unit 2 Remove the four screws securing the lower immersion heater cover and lift off the cover 3 Disconnect the two leads from the thermostat positioned above the immersion heater and remove the two fixings securing the thermostat Take car...

Page 7: ...ermostat EP051016 Standard immersion heater complete 2 off 90100001 Blending valve complete EP100071 Runback timer EP09101 Part No 7 SPARE PARTS LIST The following specialist spare parts for the Coral E are readily available from Elsy Gibbons Limited 7 Check that the control thermostat setting is correct for maximum performance top at 75 C and bottom at 85 C The bottom thermostat may have been red...

Page 8: ...d to make the most of low price off peak electricity you should contact your electricity supplier asking for details of your particular supply and advice for economical use 4 For the most economical use of the Coral E you should restrict your main use of hot water baths etc to such a time that the water in the unit will be re heated during the off peak period 5 IMPORTANT The Boost immersion heater...

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