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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 

Summary of Contents for 563216016

Page 1: ...nt For Commercial Light Industrial Central Heating Installations Installation Commissioning and Servicing Instructions IMPORTANT NOTE THESE INSTRUCTIONS MUST BE READ AND UNDERSTOOD BEFORE INSTALLING C...

Page 2: ......

Page 3: ...FOR USE ONLY 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 D...

Page 4: ...Mechanical Installation 12 7 2 System Flushing 12 7 3 Electrical Installation 12 7 4 System Expansion Vessel 12 7 5 Initial Setting of Unit 13 7 6 Filling the Unit 13 7 7 Pump Spindle Access Hole 14 8...

Page 5: ...15 Figure 18 Pump Removal 17 Figure 19 Pump Removal 17 Figure 20 Pump Removal 17 Figure 21 Pressure Sensor 18 Figure 22 Location Of Sensor 18 Figure 23 Control Box 18 Figure 24 Controller Terminals 18...

Page 6: ...th a float valve to be connected to the water mains The pump draws the make up water pressurising the system from this tank In the wall mounted unit the user interface for the controller is accessed t...

Page 7: ...6 To suit system conditions Maximum water flow temp C 82 Maximum static height m 16 5 Minimum system operating pressure bar 0 7 Maximum system operating pressure bar 7 0 Safety relief valve setting N...

Page 8: ...d by the vessel When the system cools the pressure drops If there has been some fluid loss the pressurisation provides replacement 1 Diaphragm position at the cold fill charge pressure The vessel is e...

Page 9: ...ing the system which should be filled with a suitable device such as an RPZ valve 5 0 GENERAL REQUIREMENTS 5 1 Related Documents Pressure Systems and Transportable Gas Containers Regulations 1989 It i...

Page 10: ...l 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 e...

Page 11: ...are shown in fig 9 below 6 1 Location 6 2 Pipework Connections Shown in Figure 10 1 Mains water connection BSP Male The units have a type AF air gap to prevent backflow in accordance with Water Supply...

Page 12: ...HAMWORTHY HEATING LTD 7 CHESIL ELECTRONIC 500001181 K Figure 10 Pipework Connections Wall Mounted Figure 11 Pipework Connections Floor Standing...

Page 13: ...revert to this unless it is in alarm condition 6 6 Trouble Shooting In the event of the unit not coming on when mains is applied then please return the unit to HHL for full investigation Once powered...

Page 14: ...ce pump ops was last reset By pressing the enter button this will be reset to 0000 PUMP1 HRS XX XX This is Pump 1 hours run since pump 1 hrs was last reset By pressing the enter button this will be re...

Page 15: ...n stop and FILL will flash on the screen To return the unit back to normal operation the enter key needs to be pressed again Once any required modifications have been made under Maintenance Menu it is...

Page 16: ...hat Pump 2 has not increased the pressure in the system within the allowed time Same remedy as for Pump 1 Timed Out alarm There are volt free relays on the unit to give audible visual or BMS signals t...

Page 17: ...the expansion vessel charge pressure the lock shield valve between the Chesil unit and the vessel must be closed The drain cock fitted on the base of the expansion vessel must be open to allow any wa...

Page 18: ...suitable isolation valve 5 Check that the mains lead has been connected to a suitably fused and switched isolator 6 The cold fill pressure on the units are factory set to the levels listed in figure 3...

Page 19: ...factory set operating parameters can be made following the instructions detailed in the maintenance section 6 8 7 7 Pump Spindle Access hole A 20mm hole has been added to the right hand side panel of...

Page 20: ...ge Pump cuts in and out rapidly hunting Value of cut in coldfill pressure set incorrectly Non return valve not sealing correctly System Leak Adjust values Clean valve seat or replace valve if necessar...

Page 21: ...valve to initiate a leak Note Ensure that the drain valve is closed after this operation 9 2 12 Monthly 1 Check the ball float valve diaphragm seat for integrity and replace if necessary Also check t...

Page 22: ...inside the unit MUST be quoted For service or spares contacts please refer to the inside front cover of this guide 10 2 Pump Removal part n 530905053 530905054 1 Isolate unit from electrical water su...

Page 23: ...he screw at the base of the sheet metal front cover of the unit and lift off the cover from the unit 3 Unscrew the 4 screws shown in figure 23 and remove the lid of the box 4 Disconnect the terminal c...

Page 24: ...mbling the nuts 6 Reconnect the wires to the correct terminal of the PCB as defined in the wiring schematic of Appendix A1 7 Reassemble the lid of the box and reconnect the power to the unit 10 6 Repl...

Page 25: ...l supply to the unit 10 8 Replacement Of Low Water Level Switch Part No 531203006 The tank contains a water level switch for general alarm indication 1 Isolate the unit from the mains water electrical...

Page 26: ...e fig 14 1 Isolate the unit from the water supply 2 Undo 1 2 BSP connection to remove supply pipe 3 Unscrew the lock nut from the inlet tube The valve and float are now free to be removed 4 On the sta...

Page 27: ...it could be subjected to ambient temperatures approaching 0 C At a set temperature determined by the thermostat supplied a small heating element affixed to the baseplate of the unit will be activated...

Page 28: ...2 Main Wiring Diagram 24 Figure A3 Heating System Calculation Sheet 25 Figure A1 Frost Protection Kit Wiring Diagram CONNECTOR CONNECTOR BLUE BROWN 6 5 4 3 2 1 4 3 2 1 THERMOSTAT GREEN YELLOW BLACK BL...

Page 29: ...11 12 13 14 15 16 17 PUMP 2 PUMP 1 1 2 Black Black WATER LEVEL SWITCH LOW ALARM NO PU POWERED LOW ALARM NC PU POWERED LOW ALARM COMMON HIGH ALARM NC PU POWERED HIGH ALARM NO PU POWERED HIGH ALARM COMM...

Page 30: ...Hi pressure alarm level 3 Cold Fill Pressure Switch Setting Calculation Pf Ph Pf 0 2 0 2 Pf bar 10 2 10 2 4 Safety Valve Lift Pressure Calculation Ps Actual fitted expansion vessel volume Vva Vva litr...

Page 31: ...HAMWORTHY HEATING LTD 26 CHESIL ELECTRONIC 500001181 K NOTES...

Page 32: ...HAMWORTHY HEATING LTD 27 CHESIL ELECTRONIC 500001181 K INSTALLER SITE ADDRESS USEFUL USER INFORMATION...

Page 33: ......

Page 34: ...Road Glasgow Scotland G33 4AG tel 0141 336 8795 fax 0141 771 9635 North East England Service Allison Heating Products 12 Sunnyside Lane Cleadon Village Sunderland SR6 7XB tel 0191 536 8833 fax 0191 53...

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