manualshive.com logo in svg

DORCHESTER DR-SE 18, Installation, Commissioning And Maintenance Instructions

Share
Download
DORCHESTER DR-SE 18 Installation, Commissioning And Maintenance Instructions Download Page 1

IMPORTANT NOTE

THESE INSTRUCTIONS MUST BE READ 

AND UNDERSTOOD BEFORE INSTALLING,

COMMISSIONING, OPERATING OR 

SERVICING EQUIPMENT

DORCHESTER 

DR-SE 18 & DR-SE 20 P/P 

HOT WATER 

STORAGE HEATERS 

 

 

Installation, Commissioning 

and Maintenance Instructions 

 

(Minisit 710 gas control valve) 

Heaters with serial numbers from 80000000 

Summary of Contents for DR-SE 18

Page 1: ...TOOD BEFORE INSTALLING COMMISSIONING OPERATING OR SERVICING EQUIPMENT DORCHESTER DR SE 18 DR SE 20 P P HOT WATER STORAGE HEATERS Installation Commissioning and Maintenance Instructions Minisit 710 gas...

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: ...FROM LIVING ROOMS AND PROVIDED WITH APPRORIATE VENTILATION DIRECTLY TO THE OUTSIDE IF IT IS TO BE INSTALLED IN A LIVING ROOM THE HEATER MUST BE FITTED WITH AN ADDITIONAL COMBUSTION PRODUCTS DISCHARGE...

Page 4: ...AL DATA 2 5 0 LOCATION 3 6 0 GAS SUPPLY 3 6 1 Service Pipes 6 2 Meters 6 3 Gas Supply Pipes 6 4 Boosted Supplies 7 0 FLUE SYSTEM 4 7 1 Flue Construction 7 2 Waste Gas Volume 8 0 AIR FOR COMBUSTION AND...

Page 5: ...4 Living Space Installation FIGURES PAGE Figure No 1 Dimensioned Views 14 Figure No 2 Typical Schematic Pipework Arrangement Single Heater 15 Figure No 3 Typical Schematic Pipework Arrangement Multi H...

Page 6: ...ximum heat transfer to water The draught diverter supplied must be fitted in an unmodified condition to the spigot around the top of the fire tubes where it provides a connection to a vertical flue Th...

Page 7: ...arning lamp or alarm circuit For details see Section 15 2 of the manual 2 2 5 Top to Bottom Circulation In order to give enhanced temperature control to aid compliance with the HSE guidance and the DH...

Page 8: ...e table 3 and sufficient space allowed around the heater for servicing see figure 1 The heater must normally be installed in a room separate from a living room If the heater is to be installed in a li...

Page 9: ...as near to the chimney as possible the nearest heater being not more than 2 m away 7 1 4 The flue system must be designed to achieve a suction condition at the draught diverter at all times the heater...

Page 10: ...ate of the heater system and any other system requirements The hot water flow pipe from each heater must be fitted with a 25 mm diameter vent pipe and a 19 mm relief valve The vent should rise to disc...

Page 11: ...and fill the heater Open the hot water taps and allow air to escape from the system When the system is free of air close the hot water taps and check for leaks on all the water heater connections incl...

Page 12: ...ewdriver turning the metal adjusting screw beneath clockwise to increase anti clockwise to decrease the pressure Turn control knob back to pilot only remove manometer and tighten test point screw Retu...

Page 13: ...e burner assembly Full withdrawal may be de pendant on disconnection of cabling to solenoid valve and or pressure switch if fitted Time Clock and Flame Failure Alarm options only 13 2 Servicing Burner...

Page 14: ...er with new sealing gasket Note On no account should a metal scraper be used to remove deposits since this may result in damage to the glass lining 13 5 Assembly Following Servicing Close drain valve...

Page 15: ...heater with tee vertical and to the left Mark mid point of tee on 4 mm pilot supply tube and cut tube Using the nuts and olives provided insert cut ends of tube into either side of tee and tighten Lo...

Page 16: ...water flow connection prior to any connec tion to system pipework NOTE 2 All jointing compound used should be suit able for potable water systems 15 3 2 Assembly Locate the non return valve Tee sub as...

Page 17: ...en securing nut and replace cover knob Connect the loose end of the bridging cable to termi nal 1 of the thermostat and the thermocouple lead from the gas control valve to terminal 2 Carefully unwind...

Page 18: ...62 D 13 15 2 An alarm raised by either the combustion products discharge safety device or the overheat safety device can be differentiated since the former is a thermal rest device and the latter has...

Page 19: ...HAMWORTHY HEATING LTD Page DORCHESTER DR SE 500001062 D 14...

Page 20: ...HAMWORTHY HEATING LTD Page DORCHESTER DR SE 500001062 D 15...

Page 21: ...point 4 Gas valve control knob 5 Piezo unit button 6 Gas valve setting scale 7 Pressure regulator cover screw 8 Temperature sensing phial 9 Input pressure test point 10 Thermocouple 11 Burner feed pi...

Page 22: ...HAMWORTHY HEATING LTD Page DORCHESTER DR SE 500001062 D 17 Fig 5a Gas Control Valve Adjustments Pilot adjustment screw Pressure adjustment screw...

Page 23: ...ssure regula tor adjusting screw wound fully in clockwise until there is an audible click This effectively removes the pressure regulating facility the regulator being locked fully open In addition th...

Page 24: ...ne d Ensure that the LPG reaches the heater in a fully gaseous state since liquid gas is detri mental to the control valve and results in poor combustion e Check all joints on the gas pipework includi...

Page 25: ...ee Installation Commissioning and Maintenance Manual Appendix 3 On DRSE UV heaters the 3 4 BSP Nabic temperature and pressure relief valve is fitted in the 1 BSP socket 6 ref Figure 1 this normally be...

Page 26: ...HAMWORTHY HEATING LTD Page DORCHESTER DR SE 500001062 D 21...

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...

Reviews:

No comments

Brands by name

Popular brands

Load more brands