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Worcester Bosch Danesmoor Utility 12/14 Installation And Servicing Instructions

Floor standing oil-fired pressure-jet boilers when fitted inside outdoor pack
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DANESMOOR UTILITY
12/14, 15/19, 20/25, 26/32
WORCESTER BOSCH
50/70, 70/90, 90/110
FLOOR STANDING OIL-FIRED
PRESSURE-JET BOILERS WHEN FITTED INSIDE
OUTDOOR PACK
INSTALLATION AND
SERVICING INSTRUCTIONS
IMPORTANT: Please discard all previous Installation and Servicing instructions.
Retain ONLY the Worcester Outdoor Pack Installation and Servicing
Instructions.
THESE INSTRUCTIONS ARE TO BE LEFT WITH THE APPLIANCE
This appliance must be installed and serviced by a competent person

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Summary of Contents for Worcester Bosch Danesmoor Utility 12/14

  • Page 1 DANESMOOR UTILITY 12/14, 15/19, 20/25, 26/32 WORCESTER BOSCH 50/70, 70/90, 90/110 FLOOR STANDING OIL-FIRED PRESSURE-JET BOILERS WHEN FITTED INSIDE OUTDOOR PACK INSTALLATION AND SERVICING INSTRUCTIONS IMPORTANT: Please discard all previous Installation and Servicing instructions. Retain ONLY the Worcester Outdoor Pack Installation and Servicing Instructions.

  • Page 2: Table Of Contents

    28 second Kerosene heating oil. relevant requirements of the following British Standards and 2.3 The Worcester Bosch appliances covered in these instructions are regulations in respect of the safe installation of equipment. conventional flued low level discharge appliances, which have been BS 5410: part 1: Code of practice for Oil Fired Boilers.

  • Page 3: Technical Data

    3. Technical Data Table 1 SPECIFICATIONS Danesmoor Utility MODEL 12/14 15/19 20/25 26/32 Worcester Bosch MODEL 50/70 70/90 90/110 230V 50 Hz 230V 50 Hz 230V 50 Hz 230V 50 Hz WER SUPPLY IP RATING IP 45 IP 45 IP 45 IP 45 1 in.
  • Page 4 Flue terminal Flue terminal guard X= 806 (26/32 and 90/110) X= 811 (on all other models) Danesmoor Utility 12/14 Table 2. Electro Oil Inter B9A Burner (See Fig. 29) NOMINAL BOILER RATING AT NORMAL OPERATING TEMPERATURE Appliance Pump Fuel Flow Flue Gas Approx.
  • Page 5 Fig.3. Conventional Flue Appliance (CF/LLD). Fitted within Outdoor Conversion Kit. Control Box Assembly Manual reset over- heat thermostat phial Split pin Automatic reset high limit thermostat phial Control thermostat Top panel phial Fire valve clip Manual reset High limit thermostat overheat thermostat Burner plug-in...
  • Page 6 Fig.4. Outdoor Pack. Top panel Rear panel Top panel bracket Rear panel bracket Open side panel Silencer blanking plate Clamping collar Gasket Handlewheel Brace Clamp Silencer bracket Outdoor control box Frost thermostat phial Water plate Water plate Closed side panel Fire valve plate Front panel Oil plate...

  • Page 7: Siting The Appliance

    7. Flue System 4. Siting The Appliance 7.1 The appliance must be installed in conjunction with the RS 4.1 The appliance is only suitable for external installation. Short Silencer kit, this is available from Worcester Heat Systems, WARNING: This appliance should not be installed where Part Number 7 716 190 002.
  • Page 8 Fig.5. Flue outlet terminating positions for oil-fired appliances NOTE: The dimensions given are for general guidance only. Other surrounding buildings or objects may affect the clearance of combustion products. An alternative flue terminal position should be sought when there is any possibility of a nuisance being caused by inadequate dispersal of flue products.

  • Page 9: Oil Supply

    3. An oil filter should be fitted close to the oil storage tank. If 8. Oil Supply there is doubt about the internal oil line condition, a further filter should be fitted near the boiler. See Figs. 6, 7 and 11). Fig.
  • Page 10 TABLE 8 Single Pipe Suction Lift with De-aerator MAXIMUM ALLOWABLE PIPE RUN FROM TANK TO DE-AERATOR (metres) Fuel Flowrate 2.5 (kg/h) 5.0 (kg/h) 10.0 (kg/h) 10.0 (kg/h) HEAD 6 mm inside dia. pipe 8 mm inside dia. pipe (metres) (8 mm O.D. copper) (10 mm O.D.

  • Page 11: Heating And Hot Water System

    Open Vent Primary System (See Fig. 8). 9. Heating And Hot Water System The following points are for guidance only. The system installation should be carried out in accordance with BS 5449: Part 1. The heating and hot water system must be provided in accor- 1.
  • Page 12 Fig. 9. Typical fully pumped sealed system (Honeywell ‘Y’ plan). Automatic air vent Domestic hot water cylinder Diverting N.B. A drain cock should be valve installed at the lowest point of Pressure the heating circuit Safety valve gauge Boiler Pump Radiator Boiler Expansion...

  • Page 13: Electrical

    10.5 Safety Check 10. Electrical In the event of an electrical fault after the installation of the appliance, the electrical system shall be checked for short circuits, fuse failure or incorrect polarity of connections. (See Figs. 11 to 13). 10.1 The wiring between the appliance and the electrical supply 10.6 Pre-wired Remote Y Plan or S Plan System shall comply with current IEE Wiring Regulations (and any local (See Fig.13).
  • Page 14 Fig. 12. Wiring Diagram (Standard). Boiler Control Box Trailing socket Control Manual reset High limit thermostat thermostat thermostat ( 1 ) ( C ) Outdoor Pack control box Brown Brown Frost thermostat Plug in connector Service Brown Brown switch Green/Yellow Green/Yellow Blue Blue...

  • Page 15: Installation

    open side panel. 11. Installation 7. For ease of installation fix the relevant fittings to the boiler and plug any unused sockets. The outdoor appliance is installed and serviced externally to the 8. Hold the open side panel (with the pipework exit holes) on the property, but the engineer must have access to inside of the side, which the pipework will be protruding from the boiler.
  • Page 16 Fig.16. Water Plate Positions. (Panel viewed from inside) Top of Open Side Panel For 12-25 (50-90) For 26/32 (90/110) models use the bottom models use the top holes to fasten holes to fasten N.B. The plates should be fastened on the inside of the open side panel.
  • Page 17 Fig.17. Assembly of the Base/Side/Rear Panels. Rear panel Brace Open side panel Closed side panel Template Base...
  • Page 18 14. Check the boiler sockets line up with the water plate holes in 8. Blank the top flue hole using the blanking disc as shown in Fig.24. the open side panel and make any adjustments required. 9. Fully tighten the flue silencer outlet plate to the rear panel. 15.
  • Page 19 3. Open the main oil supply valve at the tank and check for any leaks. and remove and clean the oil pump filter to remove any debris collected as a result of installation. 4. Place a suitable container below the bulkhead fitting and open the valve.
  • Page 20 Fig.21. Fastening the Top panel Bracket to the Top Panel Top panel bracket Top Panel (under side) Fig.22. Flue Terminal Assembly. Silencer bracket Gasket Clamping collar locking band Flue terminal Flue outlet plate Gasket No.6 screws supplied with RS Short Silencer Kit Fig.
  • Page 21 Fig.25. Assembling Top panel to the Outdoor Pack. Top panel Fasten the top panel to the brace using two of Rear panel bracket the screws provided. Brace (b) Top panel in position (a) Fitting of the top panel Fig.26. Flue Guard Position. N.B.

  • Page 22: Commissioning The Appliance

    14.3. point indicated in Fig.8 or the pressure gauge port shown in Fig. 31 on the Danesmoor Utility 20/25 and Worcester Bosch 70/90. 12.8 Turn on the electricity to the appliance from within the Benchmark Water Treatment: For optimum performance after property and set the switch to the ‘Run’...
  • Page 23 while holding the burner in a vertical position, fill the nozzle holder 12.16 Allow the burner to run for a further five minutes and with oil and refit the nozzle. Replace the burner and continue to then recheck the CO2 level and adjust the air setting if required. run the boiler for three minute periods until after-spurting stops.
  • Page 24 Fig. 29. Electro Oil Inter B9B Burner. Danesmoor Utility (15/19 Model) Worcester Bosch (50/70 Model) Locking screw Combustion Head Combustion head All Dimensions are in mm Spark gap 2-2.5mm Photocell 10mm Adjusting disc Transformer Draught tube Nozzle Nozzle block To adjust the nozzle position,...
  • Page 25 Air control Screw (4mm hexagonal head) screw indicator Fig. 32. Location of Boiler Flueway Baffles. (c) Danesmoor Utility 20/25 and 26/32 (a) Danesmoor Utility 12/14 (b) Danesmoor Utility 15/19 Worcester Bosch 70/90 and 90/110 Worcester Bosch 50/70 Baffle retainer Baffle...

  • Page 26: Instructions To The User

    13.2 Discard the Danesmoor Utility user instructions (Part in position and withdraw the cover to expose the fan impeller. Number: 8 716 145 137) and Worcester Bosch user instructions (c) Clean both sides of the fan impeller and remove any debris (Part Number: 8 716 145 077).
  • Page 27 Replace the seal if necessary. 2. Remove and check the baffle retainer, where fitted (Danesmoor utility 20/25, 26/32, Worcester Bosch 70/90 and 90/110 models only) as shown in Fig. 32. 3. Remove the baffles, clean and check their condition. Replace any baffles considered to be badly corroded.

  • Page 28: Short Parts List

    15. Short Parts List Part Manufacturers Reference WHS Part No. Burner for 12/14 Bentone B9A 8 716 104 431 0 B9A Combustion Head PL 6/7/21.5/10 E x 78mm 8 716 157 041 0 Burner for 15/19 or WB 50/70 Bentone B9B 8 716 142 705 0 B9B Combustion Head PL 6/7/21.5/10 x 78mm...

  • Page 29: Fault Finding

    LOCKOUT INDICATED BY RED LAMP ON CONTROL BOX To Re-set wait 2 minutes and press re-set button Ignition failure No oil delivery Air adjustment fault. Flame detection fault. Burner motor fails Intermittent Pulsation from nozzle. should be to operate. lockout. on start.
  • Page 32 Worcester Heat Systems Limited (Bosch Group), Cotswold Way, Warndon, Worcester, WR4 9SW. Telephone: (01905) 754624. Fax: (01905) 754619. Technical Helpline: 08705 266241. www.worcester-bosch.co.uk This booklet is accurate at the date of printing but will be superseded and should be disregarded if specifications and/or appearances are changed in the interests of continued improvement.

This manual is also suitable for:

Danesmoor utility 15/19Danesmoor utility 20/2570/9090/110Danesmoor utility 26/3250/70

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