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Grant 50/70 User, Installation And Servicing Instructions

Kerosene or gas oil
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Part No. DOC 02 Rev.12 October 2004
USER, INSTALLATION
and
SERVICING INSTRUCTIONS
MULTI PASS
Kitchen and Boiler House Models
50/70, 70/90, 90/140, 140/160 and 160/200
For use with Kerosene or Gas Oil
For System boiler installation and wiring refer to separate Supplement
After installing the boiler leave these instructions with the User
This appliance is deemed a controlled service and specific regional statutory
requirements may be applicable

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  • Page 1 SERVICING INSTRUCTIONS MULTI PASS Kitchen and Boiler House Models 50/70, 70/90, 90/140, 140/160 and 160/200 For use with Kerosene or Gas Oil For System boiler installation and wiring refer to separate Supplement After installing the boiler leave these instructions with the User...

  • Page 2: Table Of Contents

    LIST OF CONTENTS Section Subject Page User instructions ........3 Technical information ......6 General boiler information ....... 10 Boiler installation ........26 Commissioning ......... 33 Information for the user ......35 Boiler servicing ........36 Wiring diagrams ........43 Fault finding ..........

  • Page 3: User Instructions

    1 - USER INSTRUCTIONS Lighting your boiler (see Fig. A or B) About your boiler The boiler will provide domestic hot water and central 1 Ensure that - There is sufficient fuel, of the heating and is fully automatic once switched on. Kitchen correct type, in the supply tank and all fuel supply models have a 'boiler on' neon, see Fig.

  • Page 4: Points To Check If Burner Fails To Light

    1 - USER INSTRUCTIONS Turning off your boiler (see Fig. A or B) Note: Balanced flue models (flue terminal through the wall) must only be used with Kerosene, unless the Kitchen models for short periods - Set the On/Off to flue terminal is more than 2.0 m above ground level.
  • Page 5 1 - USER INSTRUCTIONS 5 Ventilation - Always ensure that the boiler has Sealed central heating system adequate ventilation. Any ventilation openings provided by the Installer must not be obstructed. If your boiler is operating on a sealed heating system, Periodically check that they are clear.
  • Page 6 2 - BOILER TECHNICAL INFORMATION Boiler technical data 50/70 70/90 90/140 140/160 Model 160/200 36.0 36.0 Water content litre 117 (98)* 148 (125)* 210 (197)* 210 (197)* ** Weight (dry) 258 (216)* 326 (275)* 462 (433)* 462 (433)* 21.4 27.6 43.7...
  • Page 7 10 When downrating the 50/70 model to 50 000 or 60 000 Btu/h, an LD2 head must be fitted. 11 *** Flue gas temperatures taken at combustion door test point will be approximately 25°C higher.
  • Page 8 2 - BOILER TECHNICAL INFORMATION Multi Pass oil boilers using Class D gas oil Model Heat Output Net Heat Input Nozzle Smoke Burner Fuel flow Flue gas Flue gas mass eff * press. head rate temp.** flow rate (Btu/h) (kW) (Btu/h) (kW) (Btu/h)
  • Page 9 Kitchen models Boiler House models Fig. 1 Model Dimension (mm) Dimension (mm) Model (Kitchen) (Boiler House) 70/90 50/70 90/140 70/90 140/160 410 690 1000 550 580 765 145 700 240 90/140 1080 160/200 140/160 1196 530 835 148 175 700 245...

  • Page 10: Technical Information

    BS 2869:1998. Four blue cased Boiler House models are available and are listed below together with their maximum outputs. All models, except the 50/70, are also suitable for use 70/90 26.4 kW (90 000 Btu/h) with Class D gas oil to BS 2869:1998.
  • Page 11 3 - GENERAL BOILER INFORMATION The boiler casing door is factory fitted with the hinges The installation should also be in accordance with the on the left hand side. If required, the door may be latest edition of the following British Standard Codes hinged on the right hand side as follows:- of Practice:- Remove the hinge pin from the top of the door and the...
  • Page 12 " to " BSP micronic filter must be fitted in the fuel supply line. male adaptor are available from Grant Engineering A shut-off valve should be fitted before the filter, (UK) Limited). See Section 3.3.6. to allow the filter to be serviced.
  • Page 13 3 - GENERAL BOILER INFORMATION Fig. 2 - Single pipe system Fig. 3 - Two pipe system Multi Pass Oil Boilers...
  • Page 14 " to " BSP alternative to a two pipe system can be achieved using male adaptor are available from Grant Engineering the Tiger Loop oil deaerator. This effectively removes (UK) Limited). See Section 3.3.6. the air from the oil supply on a single pipe lift.
  • Page 15 6 Connect the " to " BSP adaptor to the flexible fuel line. 7 Flexible fuel lines and adaptors are available from Grant Engineering (UK) Ltd. 8 Boiler House models - Fit the burner as described in Section 4.6. shaped washer...
  • Page 16 3 - GENERAL BOILER INFORMATION Electricity supply Air supply 1 A 230/240 V ~ 50 Hz mains supply is required. See Figs. 9 and 10 The boiler must be earthed. A sufficient permanent air supply to the boiler should be provided: 2 The supply must be fused at 5 Amp and there must a For proper combustion of fuel and effective only be one common isolator for the boiler and...
  • Page 17 3 If an existing chimney is used, it must be lined with a stainless steel liner for use with fuel oil. The top Grant boilers have high operating efficiencies. Care and bottom of the annular space must be sealed and...
  • Page 18 'OH' or similar type cowl where The Grant External flue system connects to the Tee downdraughting occurs. and may terminate at high level or vertically as 10 Refer to the locally applicable Building required.
  • Page 19 3 - GENERAL BOILER INFORMATION Fig. 11 - Typical conventional flue with brick chimney Multi Pass Oil Boilers...
  • Page 20 3 - GENERAL BOILER INFORMATION Fig. 12 - External flue (Green system) Multi Pass Oil Boilers...
  • Page 21 Min. Max. Min. Max. 70/90 Boiler House 90/140 Boiler House 140/160, 160/200 Boiler House 50/70, 70/90 Kitchen & System 90/140 Kitchen & System 140/160, 160/200 Kitchen Standard Kit 70/90 Boiler House 90/140 Boiler House 140/160, 160/200 Boiler House 50/70, 70/90 Kitchen & System 90/140 Kitchen &...
  • Page 22 Distances measured to rim of terminal. A Below a gutter or sanitary pipework * 600 Horizontal from an opening, air brick or window Clearances recommended by Grant Above ground or balcony level **300 Engineering (UK) Limited in accordance with D Below eaves or balcony *600 British Standards and Building Regulations.
  • Page 23 1 A high level flow and low level return connection are provided on each side of the boiler. See Fig. 1. Failure to implement the guidelines may invalidate the 1" BSP connections are used on the 50/70 and 70/90 warranty. models.
  • Page 24 Fig. 15 - Fully pumped system 3.12.3 Sealed system - (See Fig. 16) 2 The system must be provided with the following items:- Grant sealed system kits and sealed system boilers, a Diaphragm expansion vessel complying with incorporating factory fitted systems and circulating BS 4814.
  • Page 25 Pipework materials 3.14 highest point of the system. General - Grant boilers are compatible with both 8 All fittings used in the system must be able to copper and plastic pipe. Where plastic pipe is used it withstand pressures up to 3 bar.

  • Page 26: Boiler Installation

    The pack contains the burner and combined boiler control /overheat thermostat. Refer to Section 3.7 to fit a conventional flue. Model Dimension (mm) Kitchen & System models - 50/70, 70/90 Kitchen & System models - 90/140 Kitchen models - 140/160, 160/200 1065 Boiler House models - 70/90...
  • Page 27 4 - BOILER INSTALLATION Model Dimension (mm) A (dia) B (min) B (max) C (side) Kitchen & System models - 50/70, 70/90 1215 2115 Kitchen & System models - 90/140 1465 2205 Kitchen models - 140/160, 160/200 1585 2325 Boiler House models - 70/90...
  • Page 28 4 - BOILER INSTALLATION Make the water connections 1 Fit the thermostat pocket (supplied with the burner) into one of the tappings on the top of the boiler - If both heating flow and return connections are on one side, position the pocket on that side. Use a small amount of jointing compound on the threads.
  • Page 29 4 - BOILER INSTALLATION Fit the burner Kitchen models are supplied with the burner fitted. 2 Check that the 'O' ring is in position (around the collar To fit the burner to a Boiler House model proceed of the burner combustion head). Position the burner as follows:- on the boiler by sliding the combustion head into the mounting flange on the boiler.
  • Page 30 4 - BOILER INSTALLATION EOGB Sterling 90 burner - see Fig. 22 2 Tighten the single mounting bolt so that the burner is securely attached to the boiler mounting flange. 1 Position the burner gasket over the base of the combustion head and insert the burner mounting bolt so that it passes through the burner lug.
  • Page 31 Grant logo (in the centre of the black square) 3 Remove the wiring cover and open the cable until it is detached from the rear of the fascia.
  • Page 32 (not supplied). Refer to Section 8. For other systems not covered, contact Grant Engineering (UK) Ltd. DO NOT connect the neutral wires to either of the two thermostats. 5 Connect a link between terminal 2 on the overheat thermostat and terminal C on the control thermostat.

  • Page 33: Commissioning

    5 - COMMISSIONING Refer to Figs. 23 or 24 for boiler controls Fig. 23 - Kitchen models It is important that the following commissioning procedure is carried out to ensure safe and efficient operation of the boiler. °C If the boiler output is to be adjusted from that which is factory set, refer to Section 2.2 or 2.3 for the required settings, Section 7.4 for burner head/ nozzle change instructions and Figs.
  • Page 34 5 - COMMISSIONING 7 With the burner alight, check the fuel pressure. Re-check the smoke number if the air damper has Refer to the Technical Information, Sections 2.2 been moved. and 2.3. Adjust the pressure if necessary - see Fig. Under no circumstances must the smoke number be 6 or 8.

  • Page 35: Information For The User

    5 - COMMISSIONING 18 With the hot water system hot, check again for IMPORTANT NOTE: leaks, rectifying where necessary. Drain the system To allow the boiler to be commissioned and serviced while it is hot to complete the flushing process. correctly a combustion test point is provided on the front Refill and vent (and pressurise if a sealed system) cleaning door.

  • Page 36: Boiler Servicing

    3 Remove the burner fixing nut (top of mounting instructions. This information may be required to flange) and withdraw the burner. validate the Grant extended warranty. If required, disconnect the flexible oil pipe(s), use a suitable container to prevent any oil spillage.
  • Page 37 Check the electrode settings Riello burner - Electrode tips approximately 4 mm Clamp screw apart and 2 to 2.5 mm (50/70) or 3 to 3.5 mm (70/90, 2 to 2.5 mm (50/70) 90/140) in front of the nozzle, see Fig 27.
  • Page 38 7 - BOILER SERVICING 1.7 to 3.7mm 0.0 to 2.0mm 9.5 to 11.5mm 36 mm Measured from the face of the nozzle IMPORTANT: to the front edge of the blast tube The electrode settings given MUST be observed Fig. 28 - EOGB Sterling 90 burner head/electrode settings 4 Riello burner photocell - The photocell is a push- 6 Pump filter - With the burner cover removed fit in the burner body.
  • Page 39 Secure plates in position B for 60 000 Btu/h output Secure plates in position C for 50 000 Btu/h output Fig. 30 - 50/70 Baffle arrangement Note: Secure plates in position A for 70 000 Btu/h output Secure plates in position B for 80 000 Btu/h output Secure plates in position C for 90 000 Btu/h output Fig.
  • Page 40 7 - BOILER SERVICING Note: Secure plate in position as shown for 140 000 Btu/h output Remove plate completely for 110 000 Btu/h output Fig. 32 - 90/140 Baffle arrangement Left Right Fig. 33 - 140/160 Baffle arrangement Multi Pass Oil Boilers...
  • Page 41 7 - BOILER SERVICING Right Left Fig. 34 - 160/200 Baffle arrangement Multi Pass Oil Boilers...

  • Page 42: Wiring Diagrams

    8 - WIRING DIAGRAMS Kitchen boiler control panel wiring diagram (50/70, 70/90, and 90/140) Fig. 35 Kitchen boiler control panel wiring diagram (140/160 and 160/200) Fig. 36 Multi Pass Oil Boilers...
  • Page 43 8 - WIRING DIAGRAMS Typical control system wiring diagram (Kitchen models) Kitchen model with Honeywell S Plan (HW & CH controlled by two valves) Grey Grey Blue Blue Motor Motor Orange V4043H V4043H Zone Valve Zone Valve Orange Green/Yellow 240 V 50 HZ L641 Cylinder...
  • Page 44 8 - WIRING DIAGRAMS GRAVITY HOT WATER & PUMPED C/HEATING HONEYWELL C PLAN WIRING DIAGRAM HW controlled by valve Fig. 40 Fig. 41 Control system wiring diagram (Boiler house models) HONEYWELL Y PLAN WIRING DIAGRAM HW controlled by mid position valve V4073A Mid Position Zone Valve...

  • Page 45: Fault Finding

    8 - WIRING DIAGRAMS Dual thermostat wiring diagram (Boiler house models) Overheat thermostat Control thermostat Note: Note: No connection No connection to terminal 1 to terminal 2 Mains Supply to supply burner Connector to link neutral wires (not supplied) Fig. 43 9 - FAULT FINDING Riello RDB burner fault finding Multi Pass Oil Boilers...
  • Page 46 9 - FAULT FINDING EOGB Sterling 90 burner fault finding BURNER FAILS TO START Fault Possible causes Remedies Motor runs Flame instability Check nozzle to burner head dimension Burner pre-purges Incorrect head settings and electrode position Flame occurs Low oil pressure Check oil pressure Burner locks out Adjust air damper...

  • Page 47: Boiler Fault Finding

    9 - FAULT FINDING Boiler fault finding Warning: Always isolate the electricity supply to the boiler before working on the boiler. Faults Remedies Boiler will not start No fuel supply. Ensure that an adequate supply of fuel is available and that the fuel supply valve is open.
  • Page 48 10 - BURNER SPARE PARTS Riello RDB burner - exploded view 10.1 Description Riello Grant Description Riello Grant Part No. Part No. Part No. Part No. Not applicable Pump seal 3000439 RBS14 Flange 3005786 RBS28 Pump 3008654 RBS101 Combustion head LD2...
  • Page 49 10 - BURNER SPARE PARTS EOGB Sterling 90 burner - exploded view 10.2 14, 15 EOGB Grant Description Part No. Part No. Control box S01-TF830-2B SBS01 Photocell S01-MZ7705-80 SBS02 Pump D01-071N0142 SBS03 Solenoid coil E01-071N-0010 SBS04 Motor M02-1-125-02 SBS05 Transformer...

  • Page 50: Health And Safety Information

    11 - HEALTH AND SAFETY INFORMATION Under the Consumer Protection Act 1987 and Section 6 of the Health & Safety at Work Act 1974, we are required to provide information on substances hazardous to health (COSHH Regulations 1988). Adhesives, sealants and paints used in the manufacture of the product are cured and present no known hazards when used in the manner for which they are intended.
  • Page 51 Multi Pass Oil Boilers...

  • Page 52: Ec Declaration Of Conformity

    All goods sold are subject to our official Conditions of Sale, a copy of which may be obtained on application. © Grant Engineering (UK) Limited 2004. No part of this manual may be reproduced by any means without prior written consent.

This manual is also suitable for:

70/9090/140140/160160/200Multi pass 50/70Multi pass 70/90 ... Show all

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