Related Manuals for Grant Combi 26e
Summary of Contents for Grant Combi 26e
- Page 1 Grant UK Pro External Combi Combi 21e, Combi 26e and Combi 36e Condensing Oil Boiler Range Installation and Servicing Instructions UK | DOC 0089 | Rev 1.0 | November 2016...
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Page 2: Commissioning Report
All good sold are subject to our official Conditions of Sale, a copy of which may be obtained on application. © Grant Engineering (UK) Limited 2016. No part of this manual may be reproduced by any means without prior written consent. -
Page 3: Table Of Contents
Flue System & Air Supply Vortex Pro Combi e Oil Boilers using Class C2 Kerosene Low Level Discharge Flue Flue Gas Analysis Grant Green System Boiler Dimensions Grant Hybrid System Grant Horizontal System Oil Storage & Supply System General Guidance... -
Page 4: Introduction
Grant recommends the operation of these boilers, and by cooling the flue gases to below 90° the use of the Grant ‘Green’ flue is printed inverted at the end of this C, thus extracting more sensible heat system, to provide an insulated twin manual. - Page 5 POWER SUPPLY BEFORE REMOVING COVER WARNING 230V ISOLATE MAINS Heating (CH) pump IMPORTANT IN CABLE CLAMP BELOW PANEL CABLE TO PLUG MUST BE SECURED PLUG AND CLAMP 350mm MAXIMUM CABLE LENGTH BETWEEN Expansion vessel Burner lock-out Hot water button (DHW) pump Figure 1-1: Vortex Pro Combi 21e boiler with front panel removed showing position of control panel Overheat reset button Boiler On / Off switch...
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Page 6: Technical Data
2 Technical Data 2.1 Boiler technical data Table 2-1: Technical Data Combi 21e Combi 26e Combi 36e litres 48.0 48.5 53.5 Boiler water content (including 32 litre primary store) gall 10.6 10.7 11.8 Weight (dry)* 21.0 26.0 36.0 Ma ximum heat output (Kerosene) -
Page 7: Approximate Air Damper Setting
Gas Oil is not suitable for use with a the outputs shown. readings only. Grant Vortex Pro Combi e boiler. • The boiler efficiency and When commissioning, the air damper The net flue gas temperatures given temperature must be taken from must be adjusted to obtain the above are ±... -
Page 8: Oil Storage & Supply System
A galvanised tank must NOT be Grant UK recommend that a fire used. valve with a temperature rating of 95°C be installed on any Grant A plastic tank may be used and must two Pipe System Vortex Pro Combi. comply with OFS T100. - Page 9 Vent pipe Fill pipe Level gauge Fuel Fire valve sensor Shut-off storage valve tank Fire valve Shut-off valve Filter Sludge valve Pump (see section 3.2) Figure 3-1: Single pipe system Fire valve sensor Fire valve Non return valve Supply Filter Shut-off valve Vent Pump (see section 3.2)
- Page 10 (900mm) and ” to ” BSP male From burner adaptor are available to purchase from Grant Engineering (UK) Limited - Part From tank No. RBS36). Figure 3-4: Tiger loop de-aeration device De-aeration device e.g Tiger Loop see Figure 3-4...
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Page 11: Burner Oil Connection
Oil inlet Return connection Flexible fuel lines and adaptors are connection available to purchase from Grant Engineering (UK) Ltd. The burner cover may be left off until Figure 3-5: Burner pump connections the boiler is commissioned. -
Page 12: Boiler Installation Information
4 Boiler Installation Information 4.1 introduction Angle top panel to slope away from wall The boiler is supplied already fully Top panel Top panel using slots provided Top panel fixing screw fixing screw fixing screw assembled with the flue terminal guard supplied loose inside the boiler. -
Page 13: Expansion Vessel
Then unscrew it one complete of the enclosure) to enter through Installation of a Grant VORTEX turn - the cap remains in this position one of the holes located in the Pro External Combi e must be thereafter. -
Page 14: Completion
4.9 Before you Commission 4.11 Pipework materials terminals and accessories. To avoid the danger of dirt and foreign Grant boilers are compatible with both • BS 799:5 Oil storage tanks. matter entering the boiler the complete copper and plastic pipe. Where plastic heating system should be thoroughly pipe is used it must be of the oxygen • BS 1181 Clay flue linings and flue... -
Page 15: Pipe Connections
5 Pipe Connections 5.1 Water Connections all models A drain tap is provided at the bottom on the front of the boiler (and also on A 15mm discharge pipe must be The pipework can exit the boiler the hot water store on the Vortex Pro connected to the safety valve outlet enclosure through the pre-cut openings Combi). -
Page 16: Domestic Hot Water System
The incoming mains water pressure accordance with the manufacturers A water hardness test kit is supplied should be between 1 and 8 bar to instructions. Grant Engineering (UK) with the boiler. Should the total ensure efficient operation. Ltd. cannot be held responsible for any... -
Page 17: Condensate Disposal
6 Condensate Disposal 6.1 General requirements Condensate disposal pipes should nOtE have a minimum ‘nominal’ diameter When in condensing mode the Grant of 22mm ( ”) - e.g. use 21.5mm OD Vortex PRO boilers produce condensate polypropylene overflow pipe. from the water vapour in the flue gases. -
Page 18: Condensate Trap
6.7 Condensate disposal 6.8 inspection and Cleaning Pipework of trap Grant Vortex PRO boilers are supplied with a factory-fitted condensate trap to The condense trap outlet is at an angle The trap must be checked at regular provide the required 75mm water seal of 48°... -
Page 19: Sealed Systems
The system fill pressure (cold) should operating range of 1 to 4 bar. be 0.2-0.3 bar greater than the vessel All Grant Vortex Pro External Combi charge pressure - giving typical system e boilers are supplied as part of a • Pressure relief safety valve... -
Page 20: Electrical
8 Electrical 8.1 Connecting the Power 3. Connect the electrical supply and Burner Lead Plug/Socket Connector Supply heating / hot water controls to the On all three models, the electrical terminals in the isolating plug as cable between the boiler control panel follows: and burner is now fitted with an in-line WarninG... -
Page 21: Connecting The Controls - Heating Only
• A single channel timer and room controlling the heating operation of thermostat. the boiler only, a link must be fitted • A Grant programmable room between terminals L2 and L3 in the thermostat (Ref. RSKIT). isolation plug. This will enable the boiler Either of these options should be sited... - Page 22 Room thermostat. mains supply Connect the programmable room thermostat as follows: Figure 8-3: Connections for the Grant Programmable Room thermostat (RSKIT) Connect the switched live output from terminal C of the programmable room thermostat to terminal L1 of the boiler isolation plug. Fit a link between terminals L2 and L3 in the isolation plug Refer to Figure 8-3.
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Page 23: Connecting The Controls - Heating And Hot Water
230 V 5A fused mains supply Boiler Isolation plug – located at the left hand end of the boiler control Figure 8-4: Connections for Grant wireless two-channel programmable room panel. thermostat (RFTKIT) 3. Pull the plug to the left to remove it from the socket. - Page 24 • Earth to earth terminal If an alternative two-channel A remote two-channel programmer programmer to the Grant ESKIT is to be must be suitable for 230 V and used, it must be suitable for 230 V and internally linked - for example, use internally linked.
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Page 25: Connecting A Remote Frost Thermostat
8.4 Connecting a remote 3. From rear of control panel, carefully 8. This external frost thermostat will Frost thermostat feed the cable from the Frost operate in parallel with the internal thermostat through the upper frost thermostat. The boiler is fitted with a pre-set internal grommet at the right hand end of 9. -
Page 26: Flue System & Air Supply
Seek guidance from OFTEC Book 3 (Oil Storage and Supply). Clearances advised by Grant Engineering (UK) Limited in accordance with British Standards. Minimum distances to terminals in millimetres as measured from top of the chimney or the outer edge of a low level discharge opening. -
Page 27: Grant Green System
– constructed System Vertical terminal kit using components from the Grant Green system – connects to a Grant Starter elbow and may terminate at high level or vertically (above the roof) 45° elbow kit as required. See Figure 9-2. -
Page 28: Grant Horizontal System
If the draught conditions are system. See Figure 9-4. nOtE satisfactory, the flue should terminate A complete list of Grant Green system with a standard cowl. flue components are given on page 29. To comply with the requirements of Refer to the locally applicable Building... -
Page 29: Commissioning
10 Commissioning It is important that the following commissioning procedure is carried out Overheat reset button to ensure safe and efficient operation of Boiler On / Off switch Indicator lights (under black cap) the boiler. To access the controls, remove the front panel (turn the handle and withdraw it forwards at the bottom). -
Page 30: Before Switching On
C (Vortex Combi 21e nOtE only). Refer to Figure 10-4. 8. Check that the sealed system has Grant Vortex e Combi boilers been vented and pressurised and It is important that the oil pressure is incorporate a “pump overrun”... -
Page 31: Running The Boiler
1. Pump 2. Control box 3. Reset button with lockout lamp 4. Flange with gasket 5. Air damper adjustment screw 6. Air supply tube connection (balanced flue) 7. Pump pressure adjustment screw 8. Pressure gauge connection Figure 10-3: RDB burner components 10.3 running the Boiler 10.4 Balancing the System If the boiler is to be left in service with... -
Page 32: Air Adjuster Disc - Combi 21 Only
10 Commissioning 10.6 air adjuster disc – Combi 10.7 information for the User nOtE 21 only The User must be advised (and The Riello RDB 2.2 burner fitted to this demonstrated if necessary) of the boiler incorporates a secondary air following important points:- Leave this Instruction manual with adjustment shutter located within the air... -
Page 33: Boiler Servicing
Boiler Handbook. cleaning door seal and replace if This information may be required WarninG necessary. to validate the Grant extended 6. Replace the baffles, ensuring they guarantee. are correctly fitted. See Figure Before servicing, set the boiler 11-1, Figure 11-2 or Figure 11-3,... - Page 34 11 Boiler Servicing Right baffles Figure 11-1: Baffles in Vortex Pro Combi 21e Left baffles Figure 11-2: Baffles in Vortex Pro Combi 26e IMPORTANT The ends of the turbulators must be vertical Top set Turbulators Position in vertical plane Figure 11-4: Turbulators in Vortex Pro Combi e boilers...
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Page 35: Cleaning The Burner
11.4. Cleaning the Burner CaUtiOn WarninG The procedure is: 1. Combustion head - Loosen the two screws securing the combustion The use of an ill-fitting spanner will To ensure safe and efficient head and withdraw the head. damage the nozzle and could lead to operation of the boiler it is important an incorrect flame pattern. -
Page 36: Fault Finding
12 Fault Finding 12.1 initial Checklist - for installer or Service Engineers if the Boiler Fails to Light First follow the procedure below Power Supply Check that fused spur for heating system and boiler is switched on. Check that fuse has not blown. Check that electricity supply has not failed: check circuit breaker in consumer unit. -
Page 37: Main Fault Finding Procedure
For night time Hot Water Function – aLL the following indicator lights mUSt be lit POWER If NOT lit this indicates a problem with power supply to the boiler - switched off or possibly a blown fuse. DHW PUMP If FLASHING this indicates either a store thermistor or PCB fault. Refer to ‘Is the “DHW PUMP”... - Page 38 12 Fault Finding B. no Hot Water - but Central Heating OK First - Set Heating switch to OFF Is the “DEMAND” Check programmer is calling for hot water. indicator lit? If no programmer is fitted: Check ‘Hot Water’ switch is set to ‘CONSTANT’.
- Page 39 B. no Hot Water - but Central Heating OK continued Is the “DHW PUMP” Check electrical connections at the pump. indicator lit? PCB is supplying voltage to Check for 230V at the pump terminals. the DHW pump – but pump Check if CH pump is stuck: is not working.
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Page 40: Poor Hot Water Checklist
Hot Tap from burner Combi 21e – 12 ltrs/min maximum Excessive flow rate=poor hot water! Combi 26e – 15 ltrs/min maximum Combi 36e – 18 ltrs/min maximum Water Pressure Excessive pressure has a major Check standing and operating water pressure. -
Page 41: Riello Rdb Burner Fault Finding
12.4 riello rdB Burner Fault Finding... -
Page 42: Spare Parts
13 Spare Parts Figure 13-1 is an exploded view of the Riello RDB burner as used in the Grant VORTEX Pro Combi 21e, 26e and 36e boilers, and the associated parts list follows the figure. Figure 13-1: Riello RDB burner exploded view... - Page 43 Pressure gauge connector 3008876 RBS138 High voltage lead 3008794 RBS129 Drive coupling 3000443 RBS16 Air damper assembly 3008647 RBS116 Solenoid 3008648 RBS117 Fan (Combi 26e) 3005708 RBS39 Motor RBS102 3002836 RBS102 Fan (Combi 21e/36e) 3005788 RBS151 Cover 3008649 RBS118 Photocell 3008646 RBS115...
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Page 44: Health & Safety Information
14 Health and Safety Information Under the Consumer Protection Act 14.1 insulation materials 14.3 Kerosene and Gas Oil Fuels (mineral oils) 1987 and Section 6 of the Health Material Types: Ceramic fibre board, & Safety at Work Act 1974, we are mineral wool. -
Page 45: Ec Declaration Of Conformity
15 EC Declaration of Conformity We declare that the Grant Vortex in EU Countries in non-EU Countries range of Oil Boilers equipped with The following information is provided In non-EU countries, dispose of Riello RDB burners approved to to enable regulatory compliance with... -
Page 46: Guarantee
The manufacturer’s guarantee does NOT Guarantee could result. Grant Engineering (UK) cover the following: You are now the proud owner of a Grant Limited will not be liable for any charges • If the boiler has been installed for Vortex condensing boiler from Grant arising from this process. - Page 47 Ask your installer for advice. installation and servicing instructions. terms of manufacturer’s guarantee: • The boiler is registered with the • The Company shall mean Grant Company within thirty days of Engineering (UK) Limited. Foot notes: installation. Failure to do so does not •...
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Page 48: A High Efficiency Circulating Pump
This is the default setting of the pump simply pull the plug off the socket on selector knob must be set to the LEFT and as such is recommended by Grant the pump. of the mid position. Refer to Figure A-2. - Page 49 a High Efficiency Circulating Pump selector knob at a pressure that represents the maximum pressure Indicator LED (head) loss for the heating system in question. Constant Speed Variable Pressure Mode settings: Mode settings: I, II, III Fault diagnosis 1 to 7m head The Indicator LED, located around the circumference of the red control knob, can assist in diagnosing and rectifying...
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Page 50: B Product Fiche
B Product Fiche Vortex Pro Combi Models Condensing boiler Low temperature boiler B1 Boiler Combination heater Prated Rated heat output Useful heat output At rated heat output and high temperature regime 10.8 At 30% of rated heat output and low temperature regime Auxiliary electricity consumption elmax 0.158... - Page 51 Notes...
- Page 52 Notes...
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