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INSTALLATION &
SERVICING INSTRUCTIONS
FOR THE
G. C. APPLIANCE No. 47 333 06/07/08
Supplied By www.heating spares.co Tel. 0161 620 6677
HALSTEAD
EC 0063/AT/5304
0 0 8 6
Finest
Finest
Finest Gold
Finest Gold
FULLY AUTOMATIC FAN ASSISTED
BALANCED FLUE COMBINATION BOILER
FOR USE WITH NATURAL GAS OR PROPANE
TO BE LEFT WITH THE USER ADJACENT TO THE GAS METER
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Summary of Contents for Halstead Finest
- Page 1 Finest INSTALLATION & Finest HALSTEAD SERVICING INSTRUCTIONS FOR THE Finest Gold Finest Gold FULLY AUTOMATIC FAN ASSISTED BALANCED FLUE COMBINATION BOILER FOR USE WITH NATURAL GAS OR PROPANE G. C. APPLIANCE No. 47 333 06/07/08 EC 0063/AT/5304 TO BE LEFT WITH THE USER ADJACENT TO THE GAS METER 0 0 8 6 Supplied By www.heating spares.co Tel.
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Page 2: Table Of Contents
Concentric air/flue duct specifications ... .3 provides a higher flow rate. The Finest Propane, as its name suggests is Optional twin pipe air/flue duct specifications ..6 Exploded diagram . -
Page 3: Technical Specifications
(4.4 psi) Min. mains water inlet pressure for max heat output 1.4 bar (20.4 psi) Finest, Finest Gold: I (G20 with a governed gas supply at 20 Max. gas rate (after 10 mins operation i.e. hot) 3.6 m (127 ft mbar (8 in.wg) inlet pressure) - Page 4 • EXAMPLES OF ALTERNATIVE FLUE SYSTEMS TERMINAL VERTICAL DUCT COWL 2(a) HORIZONTAL • 2(b) HORIZONTAL • EXTENSION STRAIGHT FLUE STRAIGHT FLUE DUCT SUPPLIED AS STANDARD STANDARD • TELESCOPIC • EXTENSION FLUE DUCT FLANGED ELBOW • STANDARD • EXTENSION DUCT • DUCT FLANGED ELBOW EXITS APPLIANCE...
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Page 5: Concentric Air/Flue Duct Specifications
The maximum permissible allowable length of the flue system is: 45° Elbow (Allows an additional bend in the flue and has an Halstead Finest-horizontal flue-maximum 4655mm (183in) ‘equivalent length’ of 384mm.) This elbow is mechanically Halstead Finest-vertical flue-maximum 6152mm (242in) - Page 6 SPECIFICATION FOR FLUE SYSTEMS WITH AN EXTRA 90° ELBOW (Refer to section 2.6(b) for maximum allowable lengths) • • Fig 4a - Use of the flanged elbow, one 4(a) extension kit, 90° elbow, and standard flue assembly. • Equivalent length Shown is 3045mm Where ‘Lb’...
- Page 7 Measured from the top of the appliance to the underside of the air inlet cowel. NUMBER FLUE LENGTHS OF EXTENSION ‘L’ KITS NONE 1550 • 2317 3084 THREE 3851 FINEST FOUR 4618 GOLD FIVE 5385 6152 FINEST Supplied By www.heating spares.co Tel. 0161 620 6677...
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Page 8: Optional Twin Pipe Air/Flue Duct Specifications
Important: This flue system is only available for use with the M/F 45° SWEPT ELBOW EQUIV. LENGTH 0.8M Finest. The flue system IS NOT suitable for the Finest Gold. PART No. 840510 If an installation requires that the boiler is sited in an unusual or... -
Page 9: Exploded Diagram
EXPLODED DIAGRAM 50 100 96 49 79 94 80 36 107 59 123 Drawing amended 7/2/99 Supplied By www.heating spares.co Tel. 0161 620 6677... -
Page 10: Hydraulic Circuit
HYDRAULIC CIRCUIT AUTOMATIC AIR VENT EXPANSION VESSEL PUMP Filling Loop Overheat Stat Heating Flow Heating 3 bar Return Pressure Relief Valve Cold Water IN PRESSURE GAUGE Plate Heat Exchanger CENTRAL HEATING MODE By-Pass AUTOMATIC AIR VENT EXPANSION VESSEL PUMP Filling Loop Overheat Stat Heating... -
Page 11: Installation Requirements
INSTALLATION REQUIREMENTS STATUTORY REQUIREMENTS FLUE TERMINAL POSITION • GAS SAFETY (INSTALLATION AND USE) REGULATIONS 1996 (AS AMENDED) It is the law that all gas appliances are installed by a registered • person, in accordance with the rules in force. Failure to install •... -
Page 12: Ventilation Requirements
Finest - 298cm (46in Finest Gold - 337cm (52in If the ventilation is direct to air from outside the building, the necessary areas quoted above may be halved. If the cupboard or compartment is full room height (2.3 m min.) then NO purpose made ventilation is required. -
Page 13: Domestic Hot Water Systems
The final 600mm (24in) of the mains supply pipe to the boiler EXTERNAL CONTROLS must be copper. c) A domestic hot water regulator is fitted within the Finest group The appliance may be used with any Certificated mains voltage set to control the maximum water flow rate. This may be room thermostat as described in section 4. - Page 14 TYPICAL SYSTEM DESIGN PRESSURE RELIEF VALVE OUTLET TO DRAIN APPLIANCE • GAS SUPPLY CH FLOW DOMESTIC HOT WATER OUT MAINS WATER IN CH RETURN • • • RADIATOR WITH • 2 LOCKSHIELD VALVES • • IN OPEN POSITION • • DOMESTIC HOT WATER •...
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Page 15: Installing The Appliance
INSTALLING THE APPLIANCE A special feature of the Finest and Finest Gold is the multi- INSTALLING THE MULTIFUNCTIONAL functional boiler chassis (MBC) which serves as a wall mounting BOILER CHASSIS bracket to support the boiler, and provides all water service... -
Page 16: Service Connections
DETERMINING THE POSITION OF THE AIR/FLUE DUCT HOLE • • 18(a) REAR FLUE 18(b) SIDE FLUE • 95mm • • • POSITION OF DUCT HOLE 200mm • 225mm • 95mm • • 225mm • POSITION POSITION OF MBC OF MBC SERVICE CENTRAL MAINS WATER... -
Page 17: Air/Flue Duct Installation
AIR FLUE DUCT INSTALLATION MEASURING THE EXACT FLUE LENGTH If the wall thickness is less than 800mm (31 in) the air/flue duct may be fitted without access to the external wall providing that the TOTAL FLUE LENGTH FROM FLUE OUTLET CENTRE TO optional wall liner is used. - Page 18 ACHIEVING THE CORRECT FLUE LENGTH • • MAX. 319mm MIN. OVERLAP 50mm (2in) • • • • • • 425mm • • • 76mm • 17mm INSIDE EDGE OF EXTERNAL SEAL IN • POSITION ON AIR DUCT 767mm EXTENSION • ASSEMBLING THE FLUE SYSTEM SLIDE EXTERNAL SEALING RING UPTO FLUE TERMINAL •...
- Page 19 may constitute a safety hazard. 4.7.2 FLUE RESTRICTOR (iii) Failing to comply with these instructions will invalidate the A flue restrictor is supplied with the appliance for use, only if appliance Certification and therefore may contravene the no extensions or additional flue extension elbows are fitted. appropriate EC legislation and local statutory requirements.
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Page 20: Wiring Instructions
then fit the air duct to the elbow, drill and secure with the two 4.7.4 INSTALLING THE AIR/FLUE DUCT screws. FROM OUTSIDE THE BUILDING d) Pull the flue system towards the boiler to seat the external (Flue hole diameter 100mm - wall liner not necessary) sealing ring against the outside wall and secure the air duct to the elbow using the two screws provided. -
Page 21: Commissioning And Testing
FILLING THE WATER SYSTEMS including the meter MUST be purged and tested for gas A special feature of the Finest and Finest Gold is that the water soundness in accordance with BS 6891:1988. systems can be completely filled prior to fitting the boiler. It is... -
Page 22: Commissioning The Central Heating Circuit
COMMISSIONING THE CENTRAL HEATING CIRCUIT VALVE POSITIONS FOR • NORMAL OPERATION • • • Check that the boiler connections are tight and open the valves by turning them to the position shown. If it is necessary to top up the pressure, connect the hose and repeat the procedure in section 5.1 Check the operation of the pressure relief valve (Fig. -
Page 23: Dhw Flow Rate
DHW flow rate is low. If modulation is suspected, open all IGNITION LOCKOUT DHW taps to maximise flow and re-check burner pressure) In the event of an ignition failure, the safety lockout LED will flash. If it is necessary to adjust the DHW burner pressure the Turn off the electrical power supply to the appliance (or remove method is described in section 9.6 Gas valve replacement. -
Page 24: Routine Servicing Instructions
ROUTINE SERVICING To ensure continued efficient operation of the appliance, it is the grommet in the bulkhead below the burner to release the recommended that it is checked and serviced as necessary at earth, ignition, and detection wires. regular intervals. The frequency of servicing will depend upon the g) Remove the burner by sliding it forwards with reference to particular installation conditions and usage but in general once a Figure 34. - Page 25 d) Inspect the fan assembly (especially the impeller) for dirt, HEAT EXCHANGER damage, or signs of wear. If necessary clean the impeller a) Inspect the heat exchanger from both above and below the using a soft brush or vacuum cleaner. Spin the impeller and check that it rotates freely, without noise, and without fins.
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Page 26: Internal Wiring Diagrams
INTERNAL WIRING DIAGRAMS 7.1 : FUNCTIONAL FLOW WIRING DIAGRAM Supplied By www.heating spares.co Tel. 0161 620 6677... -
Page 27: 7.2 : Illustrated Wiring Diagram
7.2 : ILLUSTRATED WIRING DIAGRAM AIR PRESSURE SWITCH VALVE PUMP FUSE F2 PRIMARY FLOW 1Amp GQB SWITCH (Glass) DOMESTIC HOT WATER THERMISTOR • CENTRAL • HEATING • THERMISTOR • • DOMESTIC HOT WATER FLOW SWITCH FUSE F1 2Amp HRC (Ceramic) •... -
Page 28: Fault Finding
FAULT FINDING DHW FAULT FINDING GENERAL When the hot water tap is turned on, the controls should carry out Before looking for a fault condition, check that: a set of start up checks (flow chart 1) followed by an ignition The mains electrical supply is turned on. - Page 29 FLOW CHART 1: START/POWER UP FAULT FINDING START Gain access to boiler control box then switch on electrical On power up the PCB should supply power the fan and pump for around 15 seconds to prove the APS, pump flow switch and Is 230v present Re-check mains supply across pins 2 &...
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Page 30: Replacement Of Parts
PARTS REPLACEMENT Before commencing any service operation, ISOLATE the mains electrical FAN ASSEMBLY supply, and TURN OFF the gas supply at the main service cock. a) Gain access to the fan assembly by following section 9.1 It is the law that any service work must be carried out by a registered person. -
Page 31: Multifunctional Gas Control
3) Using a 10mm spanner, turn brass nut ‘B’ to attain the b) Disconnect the pressure sensing pipes from the pressure required minimum burner pressure (as stated in section 2.2 or switch (note that the short pipe (from the flue gas sampling on the data plate. -
Page 32: Thermistors D.h.w. Or Heating
b) Unclip the pressure gauge and the PCB connector plugs from 9.11 THEMISTORS - DHW OR HEATING the control box, disconnect the mains electrical connection The thermistors are immersed in the waterways hence slight water (and external controls, if fitted) unclip the controls housing loss is likely during this operation. -
Page 33: Pump
f) Remove the switch body by sliding to the right. 9.19 CH EXPANSION VESSEL g) Replace the flow switch and re-assemble in reverse order. In the unlikely event of failure of the expansion vessel diaphragm Ensure that the alignment pin is correctly aligned. it is acceptable to leave the vessel in position and to fit a Recommission the hot water system as explained in section 5. -
Page 34: Supplementary Instructions For Flue Systems With A Vertical Outlet
SE-DUCT APPLICATIONS SHORT PARTS LIST These supplementary instructions must be read in conjunction with the 1, 2 Installation and Servicing Instructions supplied with the appliance. The entry of the concentric air/flue duct should be as close to the 3, 4 centre of the entry face of the SE-DUCT as possible. -
Page 35: Supplementary Instructions For Flue Systems Incorporating An Additional 90° Elbow
SUPPLEMENT 2 Supplementary instructions for flue systems incorporating d) Using the information and dimensions in Figure 41 and an additional 90° elbow. earlier in this booklet calculate the lengths required for each duct. a) Read and follow the installation procedure described in the main section of the installation instructions up to section 4.2. - Page 36 Tel: (01787) 475557 Fax: (01787) 474588 SERVICE HOTLINE (01203) 351424 Halstead Boilers are continuously improving their products and therefore reserve the right to change specifications without prior notice and accept no liability for any error or omission in the information contained in this document.
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