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Chesil - Electronic Pressurisation Unit Equipment For Commercial/Light Industrial Central Heating Installations. Installation, Commissioning and Servicing Instructions IMPORTANT NOTE THESE INSTRUCTIONS MUST BE READ AND UNDERSTOOD BEFORE INSTALLING, COMMISSIONING, OPERATING OR SERVICING EQUIPMENT...
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IN COMMERCIAL/LIGHT INDUSTRIAL APPLICATIONS. THESE PRESSURISATION UNITS COMPLY WITH THE ESSENTIAL REQUIREMENTS OF THE MACHINERY DIRECTIVE 89/392/EEC AMENDED BY 91/368/EEC, THE LOW VOLTAGE DIRECTIVE 2006/95/EC AND THE ELECTROMAGNETIC COMPATIBILITY DIRECTIVE 2004/108/EC. PUBLICATION NO. 500001181 ISSUE ‘K’ FEBRUARY 2015 HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
1.0 INTRODUCTION The WSE, FSE & FTE models in the Hamworthy Chesil range of pressurisation unit are designed to maintain the minimum pressure requirement of modern low/medium temperature, sealed central heating systems. The pressurisation units also provide replacement water for losses from the system.
Figure 3 - Technical Data Floor Standing Wall Mounted Hamworthy Heating Part Number 563216020 563216021 563216016 Weight (empty) Weight (full) 30.6 36.6 28.6 Tank capacity litres Minimum cold fill pressure Maximum cold fill pressure Maximum operating pressure Maximum Flow Rate...
3. Diaphragm position at high system pressure. The boiler system is shut down by the system pressure switch on. 4. Diaphragm at the safety valve lift pressure. Caused by boiler temperature limiter failure for example. Acceptance factor = 0.5 maximum (recommended). HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
For small systems the user can select that the unit fills the heating system from empty. For commercial systems Hamworthy Heating Ltd recommends that this ‘fill-function’ is only used near the end of filling the system which should be filled with a suitable device such as an RPZ valve.
System expansion vessels must be constructed to BS4814 or BS6144. The required expansion vessel size is detailed in the contract documents. If in any doubt contact Hamworthy Heating Limited for comprehensive system sizing information. Hamworthy Heating Ltd supply the ‘Burstock’ range of suitable expansion vessels, details are shown below.
In the event of the unit not coming on when mains normal menu, plus added functions, with the facility to is applied, then please return the unit to HHL for make adjustments where appropriate. Structure of HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
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0000. cut in pres and coldfillpres are very close together. PUMP1 HRS XX.XX: This is Pump 1 hours run since pump 1 hrs was last reset. PUMP MAX RUN X.X: This is Pump maximum run HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
FILL will flash on the possibly at fault. You can press enter when screen. To return the unit back to normal this displays, and the pump will come back HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
Check the integrity of the pipe-work. Ensure the lock-shield valve between the Chesil unit and the expansion vessel is open and the drain valve is closed. Ensure the air purge plug is fitted (near the top of the expansion vessel). HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
3) Check for any leaks within the unit, if OK open system isolation valve. 4) The unit will now monitor the system and keep it at the required pressure. Figure 15 - Priming Screw HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
A Ø20mm hole has been added to the right hand side panel of the back plate to allow for screw driver access to the pump drive spindle. This hole may be utilised following the removal of a rubber bung. HAMWORTHY HEATING LTD CHESIL-ELECTRONIC...
8.0 FAULT FINDING General fault finding is shown in Figure 17. If the Chesil unit still does not operate satisfactorily, consult Hamworthy Heating for assistance. Figure 17. Fault Finding Guide. Fault Possible Causes Action Pump will not run Unit up to pressure...
Inspect the internal surface of the vessel for corrosion. Significant corrosion can lead to failure of the vessel; replacement of the entire vessel should be considered. If necessary replace the diaphragm as described in section 10.9. HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
The unit should also be isolated from the pressure alarm circuits. When remaking screwed connections use a thread sealant. The cover on the unit is secured by one screw at the lower edge of the front panel only. 10.1 Hamworthy Heating Recommended Spares Part Part N°...
PCB. Refer to the wiring diagram in Appendix A1. Reassemble the lid of the box , reconnect the electrical supply to the unit and replace the sheet metal front cover on the unit. HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
Replace the display PCB to the stand offs in the lid and secure using the nuts. Replace the earth lead connection. Reconnect the new display PCB ribbon cable plug to the main PCB and reassemble the lid. Replace and secure the sheet metal front cover & reconnect the electrical supply. HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
Undo the nut on the outside of the tank securing the float switch to the tank and remove the defect float switch. Refer to Figure 32. Replace the level switch and secure the bulkhead nut, ensuring the seal on the inside of the tank is cor- rectly located and the float is operating correctly. HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
The valve is inside the brass quick release fitting shown in figure 34. Unscrew the brass fitting from pump. Push the valve out from the brass fitting (see fig 33). Figure 33 - Non Return Valve Assembly Figure 34 - Non Return Valve Fitting Location On Pump HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
11.0 Frost Protection Kit (Optional Extra) This is an optional extra kit available from Hamworthy Heating Ltd - Part No. 563605663 The Frost Protection kit consists of a small heating element, a thermostat, 5M of trace cable and all wiring required to retro-fit the frost protection kit to any Chesil Electronic pressurisation unit.
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YELLOW YELLOW EARTH wire attached with trace cable PANEL WHITE CONNECTOR ORANGE HEATER BROWN WHITE CONNECTOR BLUE THERMOSTAT GREEN/ YELLOW EARTH GREEN/YELLOW BLACK BLUE BLACK ORANGE BROWN Figure A1 - Frost Protection Kit Wiring Diagram HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
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GENER AL ALARM NC (PU POWERED) Brown GENERAL AL ARM COMMON Blue PUMP 2 NEUTR AL Brown PUMP 2 LIVE Brown PUMP 1 LIVE Blue PUMP 1 NEUTR AL Blue MAINS NEUTRAL Brown Black MAINS LIVE Black HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
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3 6. Lo Pressure Alarm Setting Calculation, P = 2.05 - 0.3 = - 0.3 7. Hi Pressure Alarm Setting Calculation, P si - - 0.35 = - 0.35 = 3.0 HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
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USEFUL USER INFORMATION INSTALLER SITE ADDRESS HAMWORTHY HEATING LTD CHESIL-ELECTRONIC 500001181/K...
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Customer Service Centre Hamworthy Heating Limited, Fleets Corner, Poole, Dorset BH17 0HH Telephone: 0845 450 2866 Fax: 01202 662522 Email: aftersales@hamworthy-heating.com Website: www.hamworthy-heating.com Hamworthy reserves the right to make changes and improvements which may necessitate alteration to the specification without prior notice.