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Summary of Contents for Grant Vortex Series
- Page 1 Grant Vortex Outdoor Combi Condensing Oil Boiler Range Installation and Servicing Instructions UK | DOC 0123 | Rev 1.0 | November 2019...
- Page 2 This manual is accurate at the date of printing but will be superseded and should be disregarded if specifications and/or appearances are changed in the interests of continued product improve- ment. However, no responsibility of any kind for any injury, death, loss, damage or delay however caused resulting from the use of this manual can be accepted by Grant Engineering (UK) Limited, the author or others involved in its publication.
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Page 3: Table Of Contents
CONTENTS INTRODUCTION Conventional flue systems External vertical conventional flue How a condensing boiler operates Boiler description (Green System) Flue options External horizontal conventional flue Boiler components (Green System) Flue clearances TECHNICAL DATA COMMISSIONING Boiler technical data Burner settings 10.1 Before switching on Flue gas analysis 10.2 Burner settings:... -
Page 4: Introduction
All boilers are supplied with the control panel and burner factory fitted. All the models in the current Grant Vortex Pro Combi range of boilers are designed to comply with the maximum NOx emissions under the Energy-related Products Directive (ErP). -
Page 5: Boiler Components
RBS36XS) and 3/8” to 1/4” BSP male adaptor (product code: Service/Test Switch (External Modules only) Z3003602) are available to purchase from Grant UK, for two-pipe oil supply systems. A Service switch is fitted to the control panel to allow the Service Engineer to test-fire the boiler. -
Page 6: Technical Data
TECHNICAL DATA BOILER TECHNICAL DATA Table 2-1: Boiler technical data Outdoor Units Combi 21 Combi 26 Combi 36 litre 48.0 48.5 53.5 Water content (including 32 litre primary store) 10.6 10.7 11.8 Weight (dry) * Maximum heat output (Kerosene) Btu/h 71,600 88,700 122,800... -
Page 7: Burner Settings
The data given above is approximate only and is based on the boiler being used with a low level balanced flue. The above settings may have to be adjusted on site for the correct operation of the burner. Gas Oil is NOT suitable for use with Grant Vortex boiler range The flue gas temperatures given above are ± 10%. -
Page 8: Oil Storage And Supply System
Oil storage tanks should comply with the following standards: • ¼ʺ isolating valve (product code: ISOLATION1/4) • Plastic tanks OFT T100 These are available to purchase from Grant UK. • Steel tanks OFT T200 Metal braided flexible fuel hoses should be replaced ANNUALLY when the boiler is serviced. - Page 9 Figure 3-1: Single pipe (gravity) system Figure 3-2: Two pipe system Figure 3-3: De-aeration device system Key to oil supply diagrams Oil tank Oil filter (15μm max. filtration size) Non-return valve Isolating valve Fire valve sensor De-aerator* Oil strainer Oil pump Appliance isolation valves Fire valve to BS5410-1 Burner...
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Page 10: Burner Oil Connection
• ¼ʺ isolating valve (product code: ISOLATION1/4) port and that the plastic plug is discarded. These are available to purchase from Grant UK. The burner fuel pump is supplied factory set for use with a single 3.1.5 SINGLE PIPE (SUCTION) SYSTEM WITH pipe (gravity) oil supply system. - Page 11 ¼ʺ isolating valve (product code: ISOLATION1/4) Fit the ¼ʺ isolating valve (supplied with the boiler) to the end These are available to purchase from Grant UK. of the rigid oil supply pipe using a fitting to suit the pipe size and type (not supplied).
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Page 12: Installation
Health and Safety information given in Section 15. Installation of a Grant Vortex boiler must be in accordance with the following recommendations: To achieve the maximum efficiency possible from the Grant Vortex •... -
Page 13: Pipework Materials
4.5 PIPEWORK MATERIALS PREPARATION FOR INSTALLATION The Grant Vortex boiler is compatible with both copper and plastic pipe. Where plastic pipe is used it must be of the oxygen barrier Carefully remove the packaging from the boiler and remove it type and be the correct class (to BS 7291-1) for the application from the transit pallet. -
Page 14: Installing The Boiler
Fernox products visit www.fernox.com. soft copper, routed along the base of the enclosure (either Grant UK strongly recommends that a Grant Mag One in-line between the enclosure and wall or in front of the enclosure) magnetic filter/s (or equivalent*) is fitted in the heating system to enter through one of the holes located in the bottom edge pipework. -
Page 15: Pipe Connections
PIPE CONNECTIONS WATER CONNECTIONS If the boiler is installed against a wall, fit the wall flashing strip. Position the strip with the bottom edge of the wider The flow and return pipework can exit the boiler enclosure either flange 20 mm above the enclosure top panel, with the narrow through the pre-cut openings provided in both sides (under the flange (with the three fixing holes) flat against the wall. -
Page 16: Making The Water Connections
Grant UK cannot be held responsible The boiler may still operate down to a pressure of 1.0 bar but with for any damage or misuse caused by the fitting of any water a reduced flow rate. -
Page 17: Condensate Disposal
CONDENSATE DISPOSAL GENERAL REQUIREMENTS PIPEWORK When in condensing mode the Grant Vortex boilers produce Condensate disposal pipework must be plastic (plastic waste or condensate from the water vapour in the flue gases. overflow pipe is suitable). This condensate is moderately acidic with a pH value of around ! NOTE ! 3.27 (similar to orange juice). -
Page 18: Condensate Soakaway
• If there is any discharge of condensate from the overflow gulley or soil stack, is not covered by the Grant product outlet, this could indicate a blockage (possibly due to guarantee. -
Page 19: Condensate Disposal Pipework
CONDENSATE DISPOSAL INSPECTION AND CLEANING PIPEWORK OF TRAP The condense trap outlet is at an angle of 48° below the The trap must be checked at regular intervals (e.g. on every horizontal. This is to automatically gives a 3° fall on any annual service) and cleaned as necessary to ensure that it is clear ‘horizontal’... -
Page 20: Sealed Systems
The pressure gauge is factory fitted in the boiler control panel. It REQUIREMENTS has an operating range of 0 to 4 bar. Refer to Section 1.4. All Grant Vortex Pro Combi boilers must be used as part of a sealed system complying with the requirements of BS EN 12828, 7.1.3 PRESSURE RELIEF (SAFETY) VALVE BS EN 12831 and BS EN 14336. -
Page 21: Filling The Sealed System
FILLING THE SEALED SYSTEM VENTING THE PUMP Filling of the system must be carried out in a manner approved by For those heating circulating pumps fitted with a vent plug, it is the local Water Undertaking. important that the pump is properly vented to avoid an air lock and also prevent it running dry and damaging the bearings. -
Page 22: Electrical
ELECTRICAL CONNECTING THE POWER ! WARNING ! SUPPLY The Vortex Pro External Combi is supplied fitted with an electrical Ensure that the electrical supply has been isolated before isolation plug, located in the left hand end of the boiler control making any connections to the boiler. - Page 23 BURNER LEAD PLUG/SOCKET CONNECTOR Make the remaining required connections to the control panel, as detailed in this section. On all models, the electrical cable between the boiler control Replace the cover on the plug, refit the two screws and panel and burner is now fitted with an in-line 3-way plug ensure it is securely fitted.
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Page 24: Connecting The Controls - A1
CONNECTING THE CONTROLS - CONNECTION OF AN EXTERNAL REMOTE TIMER AND ROOM THERMOSTAT HEATING ONLY To control the central heating on / off periods only (and NOT the ! WARNING ! domestic hot water), it is recommended to use a single channel timer and room thermostat. -
Page 25: Connecting The Ocntrols
CONNECTING THE CONTROLS - CONNECTION OF EXTERNAL REMOTE PROGRAMMER HEATING AND HOT WATER Connect the switched live output from the Hot Water channel out If control of both the heating and hot water operation of the boiler of the programmer (DHW ON terminal) to terminal L2 of the boiler is required, it is recommended to use a two channel programmer isolation plug. -
Page 26: Connecting A Remote Frost Thermostat
! NOTE ! detected, i.e. in a room with a radiator. For total system protection against freezing, particularly during extended periods without electrical power, Grant recommend the use of a combined heating system antifreeze and corrosion inhibitor, used in accordance with the manufacturer’s instructions. -
Page 27: Flue System And Air Supply
Grant UK for the purpose of HORIZONTAL: re-directing the flue gases to a higher level (according to the This option allows the extension of the flue system in the minimum clearances shown in Figure 9-5). -
Page 28: Conventional Flue Systems
The external vertical flue (Green system) components available stainless steel flue components should be used. from Grant UK can be found in Figure 9-3 and Table 9-2. If the draught conditions are satisfactory, the flue should terminate with a standard cowl. - Page 29 Vertical Vertical terminal terminal 45 elbow High level 90° terminal Extended wall bracket Maximum vertical Wall bracket 45° elbows length 19 metres Locking band 950 mm High level Extensions 90° terminal 450 mm 195 to 270 mm Extensions 250 mm 150 mm 45°...
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Page 30: External Horizontal Conventional Flue (Green System)
Grant Green system. See Figure 9-4. A complete list of Grant Green system flue components can be It is possible to extend the flue horizontally by a maximum of 3 found in Figure 9-3 and Table 9-2. -
Page 31: Flue Clearances
FLUE CLEARANCES Section 9: Flue System and Air Supply Page 31... - Page 32 2.5 metres from the terminal or patio’s (hard surface area). Further guidance can be obtained from BS 5410-1:2019, OFTEC Book 4 (Installation) and Approved Document J. Grant UK flue products are fully compliant with the CE (Communauté Européenne/European Community) standards having undergone rigorous product testing. Page 32...
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Page 33: Commissioning
10 COMMISSIONING To ensure safe and efficient operation, it is essential that a Grant Vortex Pro Combi boiler is commissioned as detailed in the following procedure. To access the controls, remove the front door from the boiler casing (pull forward at the bottom and then lift off). -
Page 34: Before Switching On
10.1 BEFORE SWITCHING ON Ensure the boiler is isolated from the electrical supply and the boiler On/Off switch is set to OFF. Remove the front casing door. Remove the four screws retaining the top casing panel and remove the top casing panel, then check that the high limit thermostat bulb and boiler thermostat bulb are correctly located in their respective pockets. - Page 35 ! NOTE ! ! NOTE ! The distance between the end of the burner head and the Do not overtighten the fixing screw as this may damage front face of the diffuser (D) MUST be correctly set for the the electrode insulator. burner to operate correctly.
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Page 36: Air Adjuster Disc: Combi 21 Only
Refer to Figure 10-6. temperature is reached. ! NOTE ! Grant Vortex Combi boilers incorporate a “pump overrun” feature, within the control circuit board, that operates as follows: •... -
Page 37: Running The Boiler
10.5 RUNNING THE BOILER 10.7 COMPLETION Relight the boiler and allow it to run for at least 20 minutes. With the system hot, check again for leaks, rectifying where necessary. Drain the system while it is hot to complete the Check the smoke number, if it is 0-1 then it is satisfactory. -
Page 38: Servicing
11 SERVICING To ensure safe and efficient operation it is essential that a Grant ! NOTE ! Combi boiler is serviced at regular intervals of no longer than 12 months. Servicing and replacement of parts must only be carried out by a The top panel has been designed to provide a slight fall suitably qualified engineer. - Page 39 Figure 11-1: Baffles in Vortex Pro External Combi 21 Figure 11-3: Baffles in Vortex Pro External Combi 36 Position in vertical plane IMPORTANT: The ends of the turbulators must be vertical Figure 11-2: Baffles in Vortex Pro External Combi 26 Figure 11-4: Turbulators Section 11: Servicing Page 39...
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Page 40: Cleaning The Burner
11.4 CLEANING THE BURNER Photocell The photocell is a push-fit in the front of burner body. Refer to RDB2.2 BX BURNERS Section 11.8 (burner components). With the burner removed from the boiler: Holding the body of the photocell (4) and NOT the cable, Burner head, nozzle and diffuser/electrode assembly carefully pull the photocell out of the burner. -
Page 41: Adjusting The Diffuser
11.5 ADJUSTING THE DIFFUSER 11.6 AIR ADJUSTER DISC: COMBI 21 ONLY Adjust the diffuser position. Refer to Figure 10-5. Refer to Section 10.3. ! NOTE ! 11.7 RECOMMISSIONING The distance between the end of the burner head and the front face of the diffuser (D) MUST be correctly set for the ! WARNING ! burner to operate correctly. -
Page 42: Burner Components
11.8 BURNER COMPONENTS COMBI 21, COMBI 26 AND COMBI 36 (RIELLO RDB 2.2 BX) Item Description Item Description Oil pump Air inlet Air damper adjustment screw Motor Reset button with lockout lamp Motor ignition capacitor Photocell Fuel suction line Control box Return line Pump pressure adjustment screw Combustion head adjustment handle... -
Page 43: Fault Finding
12 FAULT FINDING 12.1 INITIAL CHECKLIST - FOR INSTALLERS OR SERVICE ENGINEERS 12.1.1 IF THE BOILER FAILS TO LIGHT First follow the procedure below Check that the fused spur for the heating system is switched on. Power supply Check that the fuse has not blown. Check that the electricity supply has not failed;... -
Page 44: Main Fault Finding Procedures
12.2 MAIN FAULT FINDING PROCEDURES NO CENTRAL HEATING - BUT HOT WATER OK First, set the hot water switch to OFF Check programmer/timer and room thermostat are calling for heating. Is the ‘DEMAND’ indicator lit? Checking ‘heating’ switch is set to ‘TIMED’. Check electrical connections at the pump. - Page 45 NO HOT WATER - BUT CENTRAL HEATING OK First, set the heating switch to OFF Check programmer is calling for hot water. Is the ‘DEMAND’ indicator If no programmer is fitted: check ‘hot water’ switch is set to ‘CONSTANT’. lit? Check ‘heating’...
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Page 46: Poor Hot Water Checklist
BURNER NOT OPERATING First, set either hot water or heating to ON Refer to ‘initial checklist’ for guidance. Is the ‘BURNER’ indicator lit? Continue to next check. First, set boiler ‘ON/OFF’ switch to ‘OFF’. Is the ‘BURNER’ indicator Wait 5 seconds flashing? Fast or slow flash. -
Page 47: Burner Fault Finding - Riello Rdb Burners
12.4 BURNER FAULT FINDING - RIELLO RDB BURNERS Section 12: Fault Finding Page 47... -
Page 48: Spare Parts
13 SPARE PARTS 13.1 BOILER PARTS LIST Table 13-1: Boiler parts list Description Grant UK product code Cleaning door nut and washer set EFBS14 Double pole switch EFBS19 Baffle set (complete) - Combi 21 VBS93 Baffle set (complete) - Combi 26... -
Page 49: Riello Rdb 2.2 Bx Burners
13.3 RIELLO RDB 2.2 BX BURNERS This section gives exploded views of the Riello burners in the Grant Vortex boilers, and parts lists associated with them. Section 13: Spare Parts Page 49... - Page 50 Page 50 Section 13: Spare Parts...
- Page 51 Section 13: Spare Parts Page 51...
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Page 52: Declaration Of Conformity
Domestic oil boilers Model Name/Number: Grant Vortex Outdoor Combi 21, 26 and 36 Note: All Grant Combi variants are supplied with glandless high efficiency integrated circulators In accordance with the following Directives: 2006/95/EEC Conforms with the safety objectives of the Low Voltage Directive and its amending directives. -
Page 53: Health And Safety Information
15 HEALTH AND SAFETY INFORMATION 15.3 KEROSENE AND GAS OIL Under the Consumer Protection Act 1987 and Section 6 of the Health & Safety at Work Act 1974, we are required to provide FUELS information on substances hazardous to health (COSHH Regulations 1988). -
Page 54: End Of Life Information
16 END OF LIFE INFORMATION GENERAL Grant oil boilers incorporate components manufactured from a variety of different materials. The majority of these materials can be recycled whilst the smaller remainder cannot. Materials that cannot be recycled must be disposed of according to local regulations using appropriate waste collection and/or disposal services. -
Page 55: Product Fiche
17 PRODUCT FICHE Product fiche concerning the COMMISSION DELEGATED REGULATIONS (EU) No 811/2013 of 18 February 2013 (EU) No 813/2013 of 2 August 2013 Vortex Pro Combi Symbols Unit Condensing boiler Low temperature boiler B1 boiler Combination heater Rated heat output Prated Useful heat output At rated heat output and high temperature regime... -
Page 56: Guarantee
18 GUARANTEE You are now the proud owner of a Grant Vortex condensing boiler Free of charge repairs from Grant Engineering (UK) Limited which has been designed to During the two year guarantee period no charge for parts or give years of reliable, trouble free operation. - Page 57 • The balance of the guarantee is transferable providing the installation is serviced prior to the dwelling’s new owners taking up residence. Grant Engineering (UK) Limited must be informed of the new owner’s details. • The Company will endeavour to provide prompt service in the unlikely event of a problem occurring, but cannot be held responsible for any consequences of delay however caused.
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Page 58: Wilo Yonos Para Rs Rkc Circulating Pump
Constant Speed Mode (I, II, III) This is the default setting of the pump and as such is recommended by Grant for heating systems. In this mode the pump speed is not automatically regulated (as with the Variable Pressure Mode), but operates constantly at one of the three possible speeds (set using the red selector knob on the pump control panel). - Page 59 A1.2 CIRCULATING PUMP FAULT DIAGNOSIS - WILO YONOS PARA RS RKC The indicator LED, located around the circumference of the red control knob can assist in diagnosing and rectifying a fault with the pump. See the table below: Table A1-2: Pump fault diagnosis LED condition Meaning Diagnostic...
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Page 60: Wilo-Para 25-130/7-50/Sc-6#Gra Circulating Pump
APPENDIX A2 WILO-PARA 25-130/7-50/SC-6#GRA CIRCULATING PUMP A2.1 WILO-PARA 25-130/7-50/SC- A2.1.2 THERMAL PROTECTION FUNCTION 6#GRA CIRCULATING PUMP The pump is equipped with a thermal self-protection mode. If the fluid temperature exceeds the maximum value at a specific A2.1.1 PUMP SPECIFICATION ambient temperature, e.g. 90°C at an ambient of 62°C, the pump will automatically reduce the power consumption, reducing the Table A2-1: Pump specification speed and performance of the pump. - Page 61 This is the default setting of the pump and as such is sequence, until the required pump mode and pump curve are recommended by Grant for heating systems. set: In this mode the pump speed is not automatically regulated (as...
- Page 62 To activate the key lock function press and hold the green operating button for 8 seconds until the LEDs for the selected pump settings briefly flash, then release. Both circulating pumps on all Grant Vortex Combi boilers • LEDs flash constantly at 1 second intervals to show that key come factory set at Constant Speed Mode - Pump Curve III lock is activated.
- Page 63 NOTES Notes Page 63...
- Page 64 GRANT ENGINEERING (UK) LIMITED Hopton House, Hopton Industrial Estate, Devizes, Wiltshire, SN10 2EU Tel: +44 (0)1380 736920 Fax: +44 (0)1380 736991 Email: info@grantuk.com www.grantuk.com...
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