Table of Contents
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WALL MOUNTED
DANESMOOR
ROOM SEALED BF WALL MOUNTED
OIL-FIRED PRESSURE JET APPLIANCE
INSTALLATION AND
SERVICING INSTRUCTIONS
THESE INSTRUCTIONS APPLY TO UK MODELS ONLY
THESE INSTRUCTIONS ARE TO BE LEFT WITH THE APPLIANCE
WM 12/19
BOILER OUTPUT
Hot Water and Central Heating
MINIMUM 12 kW (41,000 Btu/h)
MAXIMUM 19 kW (65,000 Btu/h)
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Table of Contents
Related Manuals for Worcester WM 12
Summary of Contents for Worcester WM 12
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Page 1: Servicing Instructions
WALL MOUNTED DANESMOOR WM 12/19 ROOM SEALED BF WALL MOUNTED OIL-FIRED PRESSURE JET APPLIANCE INSTALLATION AND SERVICING INSTRUCTIONS BOILER OUTPUT Hot Water and Central Heating MINIMUM 12 kW (41,000 Btu/h) MAXIMUM 19 kW (65,000 Btu/h) THESE INSTRUCTIONS APPLY TO UK MODELS ONLY... -
Page 2: Table Of Contents
RCD safety unit. 2.11 A colour co-ordinated twin channel programmer can be fit- ted to the appliance facia panel. This is available from Worcester, Bosch Group as an optional extra, Part Number 7 716 192 007. -
Page 3: Technical Data
3. Technical Data Table 1 SPECIFICATIONS MODEL 12/19 POWER SUPPLY 230V 50Hz HEATING FLOW 22mm HEATING RETURN 22mm HEIGHT 600mm WIDTH 420mm DEPTH 315mm standard (285mm optional) 1 /4 inch BSP FUEL LINE FLUE REQUIREMENT Telescopic (Supplied with appliance) MAXIMUM STATIC HEAD 30m (98 ft.) PRIMARY WATER CAPACITY 6.5 litres (1.4 gal) - Page 4 Fig. 2. Internal view of the appliance. Phial retaining spring Manual reset high limit thermostat Split pin Duct manual reset thermostat Automatic reset Phial high limit retaining thermostat spring Control thermostat M6 nut and washer Wall Cabinet mounting duct Optional programmer position Internal...
- Page 5 Fig. 3. External view of the appliance. (a) Exploded view Flue splash plate/seal Flue Flue Telescopic outlet External control gasket flue External duct box locking screws wing nuts and washers Insulation box Fire valve clips Heatexchanger Burner Burner hanging Burner bracket mounting Burner...
- Page 6 Fig. 4. Appliance position relative to standard wall thickness with cabinet in the standard Position. 150mm 130mm* 415mm 315mm 102mm (4 inch) wall with stand off kit 229mm (9 inch) wall 55mm 70mm* *NOTE: For cabinets set at the optional 285mm position (excluding 102 and 460mm wall thickness), add 30mm to...
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Page 7: Siting The Appliance
5. Removal of the Cabinet 4. Siting the Appliance and External Cover 4.1 The appliance may be installed in any room although partic- See Figs. 2, 3 and 7. ular attention is drawn to the requirements of the current I.E.E. Wiring regulations BS 7671 and, in Scotland, the electrical provi- For installation and servicing of the appliance the cabinet should sions of the building regulations applicable to Scotland;... -
Page 8: Flue System
A 7.2 Siting the flue outlet terminal flue terminal guard kit is available from Worcester, Bosch Group, Part Number 7 716 190 017. 1. The flue outlet terminal must be located in a suitable position, as shown in fig.8, such that the products of combustion can be... - Page 9 Fig.8. 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.
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Page 10: Oil Supply
8.6 If a single pipe system is employed then the tank must be 8. Oil Supply positioned such that the oil level does not exceed 4 metres above the level of the burner oil pump and in addition the oil level must be at least 0.3 metres above the level of the oil pump. - Page 11 8.11 The following components should be fitted in the fuel line Fig. 10. Oil pump. between the storage tank and burner: 1. A manual isolating valve installed as close to the tank as pos- A. Danfoss BFP 41. sible. Cartridge filter 1 INLET 2.
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Page 12: Heating And Hot Water System
of 1 metre above the top of the highest point in the heating cir- 9. Heating and Hot Water System cuit. 9.1 The appliance is suitable for connection to fully pumped 2. Filling and Venting conventional indirect hot water systems utilising an indirect Air in the appliance is expelled through the vent pipe or dissipat- double feed cylinder. - Page 13 Fig. 13. 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 Pump Radiator Boiler Expansion Vessel...
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Page 14: Electrical
A plug in, colour co-ordinated, 2 channel electronic programmer is avail- ed during the burner testing can be dissipated. However, in the event able from Worcester, Bosch Group. Full instructions covering installation that the controls cannot be accessed a service position is available on and operation of the programmer are included with the kit. - Page 15 (iii) Honeywell "S" plan. (See Fig. 20, 21, 22) Only the burner will fire. This will allow approximately 3 minutes test time if the boiler is cold and the boiler thermostat is set to maximum. After servicing the appliance the Service engineer must leave the appliance in the run mode.
- Page 16 Fig. 16. Basic control (Room thermostat). NOTE: Remove link 2 to 4. Programmer Conections: Grey (7) - Central Heating White (8) - Domestic hot water Brown (9) - Permanent live Blue (10) - Neutral blue brown white grey...
- Page 17 Fig. 17. Honeywell ‘Y’ Plan - external programmer. NOTE: Remove link 2 to 4. NOTE: Honeywell wiring centre (Part No. 42005748-001) should not be used.
- Page 18 Fig. 18. Honeywell ‘Y’ Plan - facia mounted programmer. NOTE: Remove link 2 to 4. Remove orange wire from 9 and relocate to 6. Set the switch on the rear of the programmer to "P". Wire from "L" to Honeywell junction box con- nection 1 only required if the optional frost thermostat is fitted.
- Page 19 Fig. 19. Honeywell ‘Y’ Plan - 10 way junction box. V4073A Mid position zone valve. blue green/yellow white L641A T6160B Cylinder stat. Room stat. Optional frost thermostat. Time controller. NOTE: When using a Worcester facia mount- ed programmer do not wire in this time con- troller.
- Page 20 Fig. 20. Honeywell ‘S’ Plan - external programmer. NOTE: Remove link 2 to 4. NOTE: Honeywell wiring centre (Part No. 42005748-001) should not be used.
- Page 21 Fig. 21. Honeywell ‘S’ Plan - facia mounted programmer. NOTE: Remove link 2 to 4. Set the switch on the rear of the programmer to "P". NOTE: Honeywell wiring centre (Part No. 42005748-001) should not be used. blue brown white grey...
- Page 22 Fig. 22. Honeywell ‘S’ Plan - 10 way junction box.
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Page 23: Installation
13. Remove the internal control box by undoing the two screws 11. Installation holding the facia to the internal control box and pivot the facia down. 14. There is an earth loom that connects the internal control box to the wall mounting duct, release the wire from the earth rivet The Wall Mounted appliance is installed within the wall of the inside the internal control box and push back through the hole in property and is serviced from outside the property, but the engi-... - Page 24 11.3 Reassembling the Appliance rectly. Make any necessary adjustments to the external duct. Remove the cover and wall trim being careful not to move the external duct. 1. From the outside of the property carefully insert the external duct into the wall mounting duct with the oil connection block on NOTE: Ensure a minimum gap of 5mm (see fig.6) between the the bottom edge of the duct.
- Page 25 Fig. 24. Wall mounting bracket positions. Wall mounting Wall Mounting bracket Bracket Wall mounting Wall mounting duct duct (a) Standard 315mm Position (b) Optional 285mm Position (for fitting appliance within a 300mm unit) Fig. 25. Wall mounting duct / external duct assembly. External Wall mounting 'D' Shaped...
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Page 26: Commissioning The Appliance
22. Insert the baffle into the heat exchanger ensuring the baffle is cause a hazard in the case of a fire. pushed hard against the back of the heat exchanger (see fig. 26). 11.6 Flue Installation 23. Check the three rope seals in the insulation box as shown in 1. -
Page 27: Instructions To The User
In this instance press the lockout reset 13.4 Worcester, Bosch Group will be pleased to discuss and button mounted in the burner control box. Another start sequence is offer a comprehensive maintenance contract. -
Page 28: Routine Cleaning And Inspection
The electrical service lead is available from Worcester, 14.3 Cleaning the Burner Bosch Group as an optional extra, Part Number 7 716 192 301. IMPORTANT – Disconnect the electrical supply at the mains before commencing any servicing. Remove the burner electrical 1. - Page 29 for this purpose on the base of the external duct to the right of 4. Turn on the oil supply at both the oil tank and between the the burner as shown in fig. 30. burner and oil filter. 5. Re-commission the burner as described in Section 12. 14.8 Re-commission the Burner.
- Page 30 Fig. 29. Service switch positions Service Note: Always set the switch to run after servicing. Fig. 30. Hanging of burner during commissioning / service Fire valve clips Burner hanging bracket Burner Fig. 31. Mechanical shut-off valve.
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Page 31: Short Parts List
Frost thermostat Seibe K36-P1363 8 716 142 393 0 Lockout reset switch Arcolectric H83001AB 8 716 146 161 0 Accessories for Danesmoor WM 12/19 Part Worcester Part No. Stand-off kit (4 inch wall) 7 716 192 256 Electrical service lead... -
Page 32: Fault Finding
16. Fault Finding... - Page 36 Technical Helpline 08705 266241. Worcester, Bosch Group is a trading name of BBT Thermotechnology UK Limited. 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.