Floor standing oil-fired condensing boiler using room sealed flue for fully pumped open vent or sealed central heating systems and domestic hot water cylinders (48 pages)
Summary of Contents for Bosch WORCESTER DANESMOOR UTILITY 12/14
DANESMOOR UTILITY 12/14, 15/19, 20/25, 26/32, 32/50, 50/70 CONVENTIONAL FLUE AND ROOM-SEALED BF FLOOR STANDING OIL-FIRED PRESSURE JET APPLIANCES INSTALLATION AND SERVICING INSTRUCTIONS Worcester supports the Benchmark code of practice THESE INSTRUCTIONS ARE TO BE LEFT WITH THE APPLIANCE This appliance must be installed and serviced by a competent person...
3. Technical Data Table 1 SPECIFICATIONS Model 12/14 15/19 20/25 26/32 32/50 50/70 230V 50 Hz 230V 50 Hz 230V 50 Hz 230V 50 Hz 230V 50 Hz 230V 50 Hz POWER SUPPLY IP RATING IP 20 IP 20 IP 20 IP 20 IP 20 IP 20...
12/14 Table 2. Electro Oil Inter B9A Burner (See Fig. 18) NOMINAL BOILER RATING AT NORMAL OPERATING TEMPERATURE Appliance Pump Fuel Flow Flue Gas Approx. Pressure Rate Temp. Input Output Fuel Nozzle (p.s.i.) (°C)** Setting Kg/h Btu/hr Btu/hr 28 Sec. Kerosene 0.40 60°ES 1.11 1.41...
32/50 Table 7. Electro Oil Inter B20C Burner (See Fig. 22) Conventional Flue Appliance (CF) NOMINAL BOILER RATING AT NORMAL OPERATING TEMPERATURE Appliance Pump Fuel Flow Flue Gas Approx. Pressure Rate Temp. Input Output Fuel Nozzle (p.s.i.) (°C)** Setting Kg/h Btu/hr Btu/hr 28 Sec.
ROOM SEALED BALANCED FLUE MODEL (RS) 4. Siting The Appliance 6.4 The appliance does not require a separate vent for combustion air. 6.5 Installation in cupboards or compartments require 4.1 The appliance is not suitable for external installation unless permanent vents for cooling purposes, one at high level and one a suitable enclosure is provided.
Fig. 2. Conventional Flue Appliance (CF/LLD). 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 High limit thermostat Manual reset overheat thermostat Burner plug-in connector Strain relief bush...
Down-draught conditions will adversely affect the operation of the boil- 7. Flue System er and must be avoided. Where possible the flue should be extended beyond the apex of the roof and should always be taken beyond the eaves of the building. Where down-draught is experienced a suitable A flue system must be provided in accordance with BS5410 and anti down-draught terminal should be fitted to the flue termination.
Fig. 6. Room Sealed Balanced Flue Terminal Installation. X = 180mm Maximum (a) Rear Discharge 4" to 7" Single Skin Wall. For use with non-standard/single skin walls up to 182.mm thick. Where noise emission from the flue terminal is likely to be of concern, it is recommended that the standard 12 in.
5. If a terminal is fitted less than 2 metres above a surface to which people have access, fit a terminal guard as shown in Fig. 8. A suitable guard is available from Worcester, Bosch Group, Part Number 7 716 190 009, or alternatively a proprietary terminal guard may be used provided it has the minimum dimensions shown in Fig.
gns shown in Fig. 8. 8. Oil Supply Fig. 9. Oil Pump. 1 INLET A. Danfoss BFP 41. (See Figs. 9, 10 and 11). 2 RETURN 8.1 Plastic or steel tanks should be installed to BS5410. Cartridge filter A steel tank should also conform to BS799: part 5 and be arranged 3 BLEED AND PRESSURE GAUGE PORT with a slope of 1 in 24 away from the outlet valve with a sludge...
TABLE 14 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.
Fig. 11. Oil Pipe Installation. Fig. 12. Typical Open Vent Fully Pumped System (Honeywell ‘Y’ plan).
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 Expansion Boiler Vessel...
9. Heating And Hot Water System 10. Electrical The heating and hot water system must be provided in accor- (See Fig. 15). dance with the current Building Regulations. 10.1 The wiring between the appliance and the electrical supply 9.1 The appliance is suitable for connection to all conventional shall comply with current IEE wiring regulations (and any local indirect hot water systems utilising an indirect double feed cylinder.
Fig. 15. Wiring Diagram (Standard). Fig. 16. Pre-wired Remote ‘Y’ Plan or ‘S’ Plan. If the system is fully pre-wired at a junction box remotely from the boiler it can be easily connected into the Worcester Utility Oil Boiler. NOTE: If a frost thermostat is required it can be wired to the remote junction box.
5. The primary system should be flushed and treated in 11. Installation accordance with the recommendations of BS 7593. 11.5 Oil supply installation (See Figs. 9 to 11). 11.1 After unpackaging the appliance it is recommended that all NOTE: Never route the oil supply pipe/hose directly below the cabinet panels are removed, as described in Section 5, and combustion chamber base.
7. Draw off at least 2.5 litres of oil until a steady flow of clear Section 10. uncontaminated oil can be seen and turn off the isolating valve. 2. Check the combustion chamber base insulation is positioned Note: This method may not be possible on some installations correctly in the bottom of the boiler.
burner has gone to lockout. In this instance wait two minutes and 12.14 Check that the flue temperature does not exceed the press the lockout reset button to initiate another start sequence. value specified in Tables 2 to 8. If this is the case then check that Repeat the procedure until a flame is established.
Fig. 19. Electro Oil Inter B9B Burner. Locking screw Combustion head (15/19 model) Combustion Head Spark gap 2 mm 2-2.5 mm Photocell 10 mm Adjusting disc Transformer Draught tube Nozzle Nozzle block Pressure Adjustment Output Dimension Screw Head Type Control box PL 6/7/21.5/10 3 mm PL 6/7/21.5/10...
Fig. 21. Electro Oil Sterling Burner. (26/32 model). Combustion Head Spark gap 2.5-3.0mm 7.5mm Draught tube Nozzle Nozzle block Output Dimension Combustion Head 26-32 PL 6/7/21.5/10 x 78 mm 3.5mm Fig. 22. Electro Oil Inter B20C Burner (32/50 model). Combustion Head PL 10/8/10/6/19/10 - E x 78mm Spark gap 2.5 to 3mm...
14.2 Pre-Service Check once per year. 1. Remove the cabinet front and top panels as described in Worcester, Bosch Group will be pleased to discuss and offer a section 5 . comprehensive maintenance contract. 2. On the RS balanced flue model remove the burner box cover 13.4 Set the system controls to the users requirements.
(b) Remove the burner box cover by pulling forwards to Slide the locating bush from the electrical box. release the ball studs. This will be found easier by pulling (d) Feed the electrical lead back through the grommet seal to on one side of the handle first to release two of the ball give sufficient play to allow withdrawal and inspection of studs and then repeating on the other side.
(c) Check that the impeller rotates freely. Fig. 25. Location of cap retainer (32/50 and (d) Clean the air damper which is attached to the fan cover and check that the adjustment mechanism operates 50/70 models) and location of top baffle. (32/50 freely.
14.6 Clean the Boiler located within the appliance case. A fire valve clip is provided for this purpose as shown in Figs 2 & 3. Test the operation of the 1. Remove the boiler top access door by releasing the M10 nuts fire valve to ensure that the mechanism operates and that the oil and check the fibreglass rope seal.
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.