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18 

6.7 Conditions of Catalytic Combustor  
 

Rakaia combustor pictures in different states: 
 

New 

combustor 

 

Combustor 

fitted 

inside the 

firebox 

 

Flame 

arrestor 

plate 

installed 

 

Glowing 

combustor 

inside the 

firebox 

 

The tool 

provided 

for 

removal of 

arrestor 

plate 

 

Damaged 

combustor 

 

Clogged 

combustor 

 

 
 
 
 
 

Summary of Contents for RAKAIA

Page 1: ...factured in New Zealand by GLEN DIMPLEX NEW ZEALAND LIMITED P O Box 58473 Botany Manukau 2163 Ph 0800 666 2824 Fax 09 274 8472 Email sales glendimplex co nz Web www glendimplex co nz 5th Nov 2019 Part No 599086 V1 2 Glen Dimplex New Zealand Ltd reserves the right to change specifications the content of this manual or the design of its product without prior notice ...

Page 2: ...ONAL SEQUENCE 13 5 1 BEFORE FIRST LIGHT UP 13 5 2 COLD START UP 13 5 2 1 KINDLING INTERMEDIATE LOAD 1 13 5 2 2 INTERMEDIATE LOAD 2 13 5 2 3 MAIN LOAD 14 5 2 4 RE FUELING SHUT DOWN 14 6 0 CATALYTIC COMBUSTOR MAINTENANCE 15 6 1 HOW IT WORKS 15 6 2 BEST PRACTICES TO ENHANCE LIFE OF COMBUSTOR 15 6 3 INSPECTING CATALYTIC COMBUSTOR 16 6 4 REMOVAL OF CATALYTIC COMBUSTOR 16 6 5 CLEANING OF CATALYTIC COMBU...

Page 3: ...ion gases The catalyst will then rise in temperature up to approximately 5000C and reaches it s optimum stage During the initial light up phase with the damper in the open position the combustion gases are allowed to pass over and through the catalyst preheating the catalyst After approx 20 minutes the catalyst will reach the required temperature At this stage the damper is closed and all combusti...

Page 4: ...ex New Zealand The catalytic combustor used in the Rakaia burner must be inspected and maintained periodically Read section 6 0 on monitoring and maintenance of catalyst carefully and follow the instructions 1 4 Caution This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been ...

Page 5: ...uth of Canterbury we recommend extending 200 outer casing within 250 300 from termination of flue Floor Protector Requirement Ash Floor Protector Clearances to Combustibles Parallel Installation Corner Installation A Rear Panel to Rear Wall 100 mm C Glass to Floor Protector Front 300 mm B Cooktop Edge to Side Wall 260 mm E Cooktop Corner to Wall 100 mm C Glass to Floor Protector Front 300 mm H Flu...

Page 6: ... the ridge If the flue exits further than 3 meters out from the roof ridge then it must project at least 1000mm above roof penetration This dimension may need increasing to ensure that the top of the flue is at least 3 meters away from the roof or other obstruction when measured horizontally The flue pipe shall extend not less than 4 2m above the top of the burner Due to factors such as roof pitch...

Page 7: ...ified in section 2 0 of this manual can be safely reduced by following guidelines specified in AS NZS 2918 2001 table 3 1 3 2 Heatshield should be made of non combustible material like metal or masonry Installed between the burner and the combustible wall With an air gap behind it and vented top and bottom The shield should extend a minimum of 450mm beyond the top of the appliance and extend width...

Page 8: ...he figure below gives the holes that can be pre drilled on the floor protector with respect to the flue center We recommend a minimum size of 8mm DynaBolts on the concrete floor or 8mm coach screws or toggle fasteners for wooden floors of appropriate length Two holes are located at the rear of the burner ...

Page 9: ...urations First install 3 full bricks on the rear wall of the firebox by locking under the brick retainer Then install one full brick on each left and the right side wall of the firebox on its side edge Push these bricks towards the rear of the firebox In the end install one cut brick each on the left and right side wall towards the front of the firebox Step 2 The Main baffle is already in place Ma...

Page 10: ...you slide it as far back as it will go then lower the front to rest on the supports Ensure the end notches have locked into the tabs of the side support Again check that the combuster is positioned fully on the left side of the firebox Step 5 Take the stainless steel flame arrestor plate and orient it in such a fashion that the flange with the slots are at the bottom Hold it vertical Lift in the f...

Page 11: ...tab on front baffle and top is resting on the rear of front air deflector Step 6 Refer schematic below to check the configuration of all firebox internal components Before the first light up make sure that the burner is correctly installed and signed off by an approved installer All local council s wood fire permission or permit requirements have been completed satisfactorily ...

Page 12: ...s dioxin which is damaging to the burner and the environment Most importantly the use of such materials will invalidate your warranty 4 1 Testing Your Wood Moisture There are a number of ways to confirm if the wood is dry enough The wood moisture meter is the best way to check the moisture content of the wood fuel Split a piece of wood and then press the metering prongs firmly into the long side o...

Page 13: ...ogs at the base of the firebox 3 Stack around 15 16 very small kindling pieces on top of these logs This is the Top Down Start Up method which reduces the particle emission during the start up phase considerably 4 Place the firelighters on top of kindling and light the fire We recommend green firelighters made of wood waste 1 2 3 4 5 2 2 Intermediate load 2 5 Keep the door ajar slightly 6 Close th...

Page 14: ...ion air slide to HIGH setting and wait for at least 30 secs 2 Unlatch the door and keep it slightly ajar for 15 20 seconds 3 Then open the door fully Always switch the damper handle gently and gradually This practice is important to avoid puff of smoke coming into room or damage to the catalytic combustor 5 2 4 Refueling and Shut down 14 Before opening the door for reloading make sure that the dam...

Page 15: ... the catalytic combustor becomes sufficiently hot approximately 20 25 mins During the start up phase the lower firebox temperature creates a larger volume of unburnt particles These particles will tend to adhere to the combustor s surfaces due to insufficient temperature If the damper is closed during start up these may block the combustor and make it less efficient Avoid leaving the door open for...

Page 16: ...stor If the clogging is due to tarry or granular brown substance use the Hot Burn technique described in section 6 5 to burn off the clogging 6 4 Removal of Catalytic Combustor The first step is to remove the flame arrestor plate Use special tool supplied with your burner to remove the flame arrestor plate Insert the tool into the holes which are at the center of the flame arrestor plate and push ...

Page 17: ... output Increased fuel consumption Visual deterioration of the combustor plates Visual increase in emissions Before concluding that the combustor needs replacement ensure that you are using your burners with all the tips given in section 6 2 Mainly the correct fuel and the damper operation Further inspect the combuster carefully by following steps in section 6 3 6 4 and if needed clean the combust...

Page 18: ...kaia combustor pictures in different states New combustor Combustor fitted inside the firebox Flame arrestor plate installed Glowing combustor inside the firebox The tool provided for removal of arrestor plate Damaged combustor Clogged combustor ...

Page 19: ... the performance of the fire and subsequently can continue to be used The bricks should be replaced only when they are damaged enough in place and cannot perform their intended task Refer Fig 6 1 for location and sequence of assembly of bricks in the firebox of the Rakaia burner After removing the old bricks remove all the ash from the firebox by removing the ash plug and collect it in the ash dra...

Page 20: ...combustor related parts Catalytic Combustor St St Flame Arrestor Plate Front Baffle Damper plate Front air deflector Main Baffle Glass Main Door Glass Other Spare Parts Kits available Damper Handle Kit Main Door Handle Kit These consumable parts should be replaced as soon as they show signs of wear Running your burner with worn or broken parts may result in reduced output an increase in fuel consu...

Page 21: ...the house when they are operating This negative pressure works against the flue system draft In severe cases the negative pressure in the house overcomes the flue system draft and the appliance begins to spill smoke especially when a fire is started or when it dries down to coals Also it can starve fire from air needed resulting in poor performance To prevent this extreme negative pressure open a ...

Page 22: ...te extra heat 1 It is important to CLOSE the damper when the burner has reached sufficiently hot temperature Refer section 5 2 and follow correct start up loading and re fuelling steps 2 Carry out visual inspection and cleaning of combustor by following section 6 3 6 4 6 5 Check emission coming out of your chimney by following steps in section 6 6 Consult your dealer about the other possible cause...

Page 23: ...welcome your feedback on the following questionnaire Question Please tick appropriate remark 1 General presentation of Product Excellent Good Ok Needs to Improve 2 Styling and Looks Excellent Good Ok Needs to Improve 3 Packaging Excellent Good Ok Needs to Improve 4 Is documentation easy to follow and informative Excellent Good Ok Needs to Improve 5 Fixtures Fittings Loose parts In order Items miss...

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Page 25: ...transport or travel costs Consumers may have additional rights under the Consumer Guarantees Act 1993 New Zealand or the Australian Trade Practices Act 1974 including the Australian Consumer Law Conditions This warranty does not apply and will be void where The Wood Burner is not installed in accordance with AS NZS2918 2001 or any building code or consent The Wood Burner is not installed by a qual...

Page 26: ... left the control of Glen Dimplex Direct indirect or consequential losses or special damages of any kind including costs of collection and delivery other than repair or replacement of products or components under this warranty where any goods are acquired or used for the purposes of a business How to obtain warranty service Completed Warranty registration form previous page needs to be mailed with...

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