Hamworthy Weymouth Advanced Installation, Commissioning And Servicing Instructions Download

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IMPORTANT NOTE

THESE INSTRUCTIONS MUST BE READ

AND UNDERSTOOD BEFORE INSTALLING,

COMMISSIONING, OPERATING OR

SERVICING EQUIPMENT

Weymouth Series Pressurisation

Units

Installation, Commissioning

and Servicing Instructions

Weymouth Standard & Advanced Models

Summary of Contents for Weymouth Advanced

Page 1: ...UCTIONS MUST BE READ AND UNDERSTOOD BEFORE INSTALLING COMMISSIONING OPERATING OR SERVICING EQUIPMENT Weymouth Series Pressurisation Units Installation Commissioning and Servicing Instructions Weymouth...

Page 2: ...ating safely and efficiently Maintenance Agreements 01202 662555 Regular routine servicing of equipment by Hamworthy service engineers inspects the safety and integrity of the plant reducing the risk...

Page 3: ...PLICATIONS THESE PRESSURISATION UNITS COMPLY WITH THE ESSENTIAL REQUIREMENTS OF THE MAHINERY DIRECTIVE 89 392 EEC AMENDED BY 91 368 EEC THE LOW VOLTAGE DIRECTIVE 73 23 EEC AMENDED BY 93 68 EEC AND THE...

Page 4: ...F THE PRESSURISATION UNIT 4 4 1 Unit Operation 4 4 2 Safety Functions Advanced Only 4 5 0 GENERAL REQUIREMENTS 4 5 1 Related Documents 4 5 2 Mains Water Connections 5 5 3 Expansion Vessels 5 5 4 Safet...

Page 5: ...Only 11 7 7 4 Hi Pressure Switch Advanced Only 11 8 0 FAULT FINDING 12 9 0 SERVICING SCHEDULE 13 9 1 6 Monthly 13 9 2 12 Monthly 13 9 3 4 Yearly 13 10 0 SERVICING AND REPLACEMENT OF COMPONENTS 14 10...

Page 6: ...andard 9 Figure 14b Float Adjustment Advanced 9 Figure 15a Priming Screw Standard 10 Figure 15b Priming Screw Advanced 10 Figure 16 Pressure Switch Adjustment 10 Figure 17 Pressure Switch Adjustment A...

Page 7: ...is the header tank with a float valve In the front of the cabinet is the systems pressure indication gauge The range has 2 models 1 The Standard with the following features 2 The Advanced with Pump c...

Page 8: ...To suit system conditions Maximum water flow temp C 82 Maximum static height m 30 Minimum system operating pressure bar 3 3 Maximum system operating pressure bar 6 3 Safety relief valve setting Not HH...

Page 9: ...ure drops If there has been some fluid loss the pressurisation provides replacement Figure 4 Expansion Vessel Operation 1 Diaphragm position at the cold fill charge pressure The vessel is empty of sys...

Page 10: ...ssure system appliances are installed by competent persons in accordance with the above regulations Failure to install appliances correctly could lead to prosecution It is in your own interest and tha...

Page 11: ...ce with BS6644 BS7074 SALES REF NO HAMWORTHY PART NO TYPE TOTAL VOL DIAPHRAGM PART NO CONNECTION WT kgs HOT WATER APPLICATIONS EPDM DIAPHRAGM 0 100 C MAX HAF 60V 532712002 VERTICAL 60 532712030 R1 BSP...

Page 12: ...gure 9 1 Mains water connection BSP Male The units have a type AF air gap to prevent backflow in accordance with Water Supply Water Fittings Regulations 1999 The water supply connection must conform t...

Page 13: ...tion must be via a fused isolator rated at 13 Amps and positioned locally to the unit 6 3 2 Safety Switches Circuits On Advanced Only The SPDT hi and lo pressure switches can be incorporated into circ...

Page 14: ...check the expansion vessel charge pressure the lock shield valve between the Weymouth unit and the vessel must be closed The drain cock fitted on the base of the expansion vessel must be open to allo...

Page 15: ...P restrictor red see fig 12 The HP restrictor is fitted in the inlet side of the float valve assembly This should be unscrewed in order to change the restrictor see fig 13 The LP Restrictor is clipped...

Page 16: ...e at which they are set This scale is to be used for indication only As all the pressure switches and the pressure gauge take readings from the same place the unit s pressure gauge can be used to give...

Page 17: ...solate the Weymouth unit from the mains electrical supply from the boiler circuits 3 Introduce a small leak until the unit s pressure gauge reading equals the required Lo pressure setting 4 Stop the l...

Page 18: ...ng Pressure switches set incorrectly Non return valve not sealing correctly System Leak Adjust pressure switches see section 7 Clean valve seat or replace valve if necessary see section 10 7 Trace lea...

Page 19: ...y slightly opening the expansion vessel drain 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 in...

Page 20: ...Gauge 557002009 Pressure Gauge 557002009 Pressure Switch Assembly 533925005 Pressure Switch Assembly 533925005 Non return valve cartridge 531911039 Non return valve cartridge 531911040 NOTE For any s...

Page 21: ...unit The connections are shown in Figure 25 below Figure 25 Weymouth Advanced Pump Wiring Terminal 10 3 1 Pump Fitting On Both Units Pump fitting for each unit is basically the reverse of pump removal...

Page 22: ...ich can be reconnected any way round The Hi and Lo pressure switches Advanced only must be reconnected as shown in fig 27 3 Pressure switch must be set to correct level Setting instructions are given...

Page 23: ...el and serial n Consult Hamworthy Heating for details 1 Turn off the boiler and electrically isolate the unit 2 Close the system isolating valve and isolate the mains water supply to the header tank 3...

Page 24: ...HAMWORTHY HEATING LTD 18 WEYMOUTH 500001112 C APPENDIX Contents Page Figure A1 Wiring Diagrams 19 Figure A2 Heating System Calculation Sheet 20...

Page 25: ...HAMWORTHY HEATING LTD 19 WEYMOUTH 500001112 C Figure A1 Wiring Diagrams...

Page 26: ...e the Hi pressure switching 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 Vv...

Page 27: ...Notes...

Page 28: ...y reserves the right to make changes and improvements which may necessitate alteration to the specification without prior notice Connect direct Direct Dial Telephone and Fax Numbers Direct Email Addre...

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Hamworthy Weymouth Advanced, Installation, Commissioning And Servicing Instructions

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