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HAMWORTHY HEATING LTD 

 

WEYMOUTH 

 

500001112/C 

5.2  Mains Water Connections. 

 
 All connections to local water mains must comply with WRAS Regulations including any local requirements.  

The 

System temporary fill connection must be as per water supply bylaws & must be removed after initial 
filling. 

 

5.3  Expansion Vessels. 

 
 System expansion vessels must be constructed to BS4814 or BS6144. 
  The required expansion vessel size is detailed in the  contract documents. If these are not available refer to 
section 5.3.1, otherwise if in any doubt contact Hamworthy Heating Limited for comprehensive system sizing 
information. Hamworthy Heating Ltd supply a range of suitable expansion vessels details are shown below. A 
calculation sheet which can be used to determine a suitable volume for an expansion vessel can be found in the 
Appendix. 
 

Figure 6 Hamworthy Heating Expansion Vessels 

 
5.4  Safety Relief Valve. 

 
 Must comply with BS6759 part 1, and be sized and installed in accordance 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 BSPT MI 

 

13 

 

HAF 80V 

 

532712003 

 

VERTICAL 

 

80 

 

532712031 

 

R1 BSPT MI 

 

14 

 

HAF 100V 

 

532712004 

 

VERTICAL 

 

100 

 

532712032 

 

R1¼ BSPT MI 

 

15 

 

HAF 200V 

 

532712005 

 

VERTICAL 

 

200 

 

532712033 

 

R1¼ BSPT MI 

 

40 

 

HAF 300V 

 

532712006 

 

VERTICAL 

 

300 

 

532712034 

 

R1¼ BSPT MI 

 

50 

 

HAF 500V 

 

532712007 

 

VERTICAL 

 

500 

 

532712035 

 

R1¼ BSPT MI 

 

80 

 

HAF 750V 

 

532712008 

 

VERTICAL 

 

750 

 

532712036 

 

R1½ BSPT MI 

 

120 

 

HAF 1000V 

 

532712009 

 

VERTICAL 

 

1000 

 

532712037 

 

R1½ BSPT MI 

 

150 

 

HAF 1200V 

 

 

VERTICAL 

 

1200 

 

 

R1½ BSPT MI 

 

530 

 

HAF 1600V 

 

 

VERTICAL 

 

1600 

 

 

R1½ BSPT MI 

 

10 

 

HAF 2000V 

 

 

VERTICAL 

 

2000 

 

 

R1½ BSPT MI 

 

700 

 

* REFER TO HAM-

WORTHY HEATING 

 

 

 

 

 

 

 

HAF 8 

 

532712056 

 

H/V 

 

 

 

 

R¾ BSPT MI 

 

 

 

HAF 16 

 

532712057 

 

H/V 

 

16 

 

 

 

R¾ BSPT MI 

 

 

 

HAF 25H 

 

532712010 

 

HORIZONTAL 

 

25 

 

532712029 

 

R1 BSPT MI 

 

 

HAF 60H 

 

532712011 

 

HORIZONTAL 

 

60 

 

532712030 

 

R1 BSPT MI 

 

14 

 

HAF 80H 

 

532712012 

 

HORIZONTAL 

 

80 

 

532712031 

 

R1 BSPT MI 

 

15 

 

HAF 100H 

 

532712013 

 

HORIZONTAL 

 

100 

 

532712032 

 

R1¼ BSPT MI 

 

16 

 

HAF 200H 

 

532712014 

 

HORIZONTAL 

 

200 

 

532712033 

 

R1¼ BSPT MI 

 

41 

 

HAF 300H 

 

532712015 

 

HORIZONTAL 

 

300 

 

532712034 

 

R1¼ BSPT MI 

 

51 

Содержание Weymouth Advanced

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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...

Страница 27: ...Notes...

Страница 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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