Yunca Gas TOMMI User manual

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A division of Terry Young Ltd, New Zealand
INSTALLATION INSTRUCTIONS for
TOMMI
WOOD BURNER
• Clean Air Sub 0.6 g/kg • Non Clean Air (Rural).
JUNE 2020
TESTED in compliance with AS/NZS 2918: 2001 by Spectrum Laboratories Limited
SAFETY INFORMATION
GENERAL:
•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 given supervision or instruction concerning use of the appliance by a person
responsible for their safety.
•For the protection of young children, install an effective fire safety screen around your fire.
Always keep children well away from the wood burner when it is alight.
•Supervise young children to ensure they do not play with the appliance.
•During initial burns of the appliance, ventilate the rooms well. It is recommended that
babies, small children, pregnant women and pets should not be present in the area during
initial burns, as this is the firebox paint curing period.
•Do not make any modifications to the unit. Use it only in the manner described in the
Operations Manual. Using it in any manner not recommended by the manufacturer may
result in injury or death.
FOR UNITS INCLUDING ELECTRICAL CONNECTIONS:
•If the wood burner is permanently connected to an electrical source, an isolating switch
(wall switch) must be installed.
•New circuits or modifications may be made, if required, but must be made using the
services of a certified electrician only.
•Ensure that the outlets you use are grounded properly, polarised and provided with fuse
units.
•Ensure that the electrical plug is accessible after installation. The wood burner must not
be located immediately below an electrical socket. The socket should be located to one
side of the wood burner. The electrical outlet should not be installed higher than 300mm
maximum from the floor to the top of the plug socket outlet cover plate.
•Never operate the appliance with a damaged plug or cord. If you observe the fan unit is
malfunctioning or the heater has been damaged in any way, call the authorised service
person immediately for repairs, or to make electrical or mechanical adjustments. Isolate
the electrical supply in order to alleviate any potential risk.
•If the supply cord is damaged, the manufacturer, its service agent or a suitably qualified
person must replace it in order to avoid electrical hazard. Any cord similar to the original
can be used.

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IMPORTANT INFORMATION
I. It is imperative that you familiarise yourself with this entire document, and
also ensure you have sufficient knowledge of relevant building regulations
prior to proceeding with an installation.
II. The appliance and flue system shall be installed in compliance with AS/NZS
2918:2001 and the appropriate requirements of the relevant building code or
codes.
III. Appliances installed in accordance with this standard shall comply with the
requirements of AS/NZS 4013 where required by the regulatory authority i.e.
the appliance shall be identifiable by a compliance plate with the marking
“tested to AS/NZS 4013”.
IV. Any modification of the appliance that has not been approved in writing by
the testing authority is considered to be in breach of the approval granted for
compliance with AS/NZS 4013.
V. Mixing of appliance or flue system components from different sources, or
modifying the dimensional specification of components may result in
hazardous conditions. Where such action is considered, the manufacturer
should be consulted in the first instance.
VI. Cracked and broken components e.g. glass panels or insulation panels, may
render the installation unsafe.
INSTALLATION:
A. Competent Trades Persons are recommended to carry out all installations (e.g. a
NZHHA Registered Installer), to obtain maximum performance and safe, efficient heating.
B. A Consent is required and we suggest you check with Local Authority Building
Inspectors as by-laws do vary from area to area.
Also notify your Insurance Company that a solid fuel heater has been installed.
C. Floor Protector: –Projection of required floor protector may be read off the graph
and/or table on the next page:

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Table 2. Floor Protector Reductions for Tommi Freestanding Installation
Freestanding Elevation (mm)
200
250
300
350
400
475
Hearth Projection (mm)
620
584
541
486
420
300
Note: Floor Protector must:
1. Extend in front of the fuel-loading or ash-removal opening as per the above chart
but must continue to extend a minimum of 300mm at 475mm or higher above the
floor.
2. Extend at least 200mm from each side of the fuel-loading or ash-removal opening
unless it forms an abutment with a wall or heat shield at a lesser distance.
3. Be constructed of 2 sheets of non-combustible materials such as one of the
following examples, or similar. The total combined thickness must not be less than
20mm.
Examples: Hilux (2 x 12mm), Eterpan (2 x 15mm), or Promatect-H (2 x 12mm).
D. Seismic Restraint: –Heater must be restrained from seismic movement as required
by AS/NZS 2918:2001. 10mm diameter bolting holes in the rear corners allow restraint.

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E. Manufacturer’s Recommended Tested Minimum Clearances From
Combustible Walls:
Tested to AS/NZS 2918 : 2001 by SPECTRUM LABORATORIES LIMITED
Clearance
Rear Clearance (with YUNCA TOMMI FLUE GUARD fitted) from the fan
100mm
Side Clearance (with YUNCA TOMMI FLUE GUARD fitted)
400mm
Corner Clearance (with YUNCA TOMMI FLUE GUARD fitted)
400mm
F. YUNCA TOMMI Flue Kit
(Complies with AS/NZS 2918:2001 Appendix F): FIG A, B & E.
1. 4.8m x 175mm stainless steel flue.
2. 3.6m x 225mm galvanised inner liner c/w brackets.
3. 3.6m x 275mm galvanised outer liner c/w brackets.
4. 1 x ceiling trim (500mm x 500mm)
5. 1 x liner support, drop box upper section.
6. 1 x drop box lower section.
7. 1 x weather cap & cowl.
Please Note: All flue joints must be sealed with flue sealing compound. Use stainless
steel screws or rivets to join the active flue pipe (three equally spaced places at each
joint). The first length of active flue must be fixed to the flue spigot on the burner with at
least one stainless steel screw or rivet. The required minimum flue termination height is
4.6m above the floor protector.
G. TOMMI WOODBURNER Flue Mounted Shield (Flue Guard) Kit. Complies
(with heater) to AS/NZS 2918:2001): Refer FIG A.
1 x flue guard mount.
1 x 1200mm length, insulated, flat, back guard, plus an optional extension for
trimming to length, as required.
1 x 1200mm length, “U” section, front guard, plus optional extension as required.
Please Note: The Tommi Flue Shield is to be full height within the room.
H. TOMMI WOODBURNER Main Air Intake Assembly.
1 x Outer wall vent cowl.
1 x Air intake round duct
1 x Outer wall vent flange
1 x Damper duct assy.
1 x Flexi-duct.
2 x Flexi-duct clamp 100mm

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FIG. A: HEATER DIMENSIONS –TOMMI WOODBURNER (Not to Scale.)

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FIG. B: HEATER POSITION –TOMMI WOODBURNER (Not to Scale.)

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FIG. C: TOMMI FREESTANDING WOODBURNER –TYPICAL FLUE
INSTALLATION

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FIG D: FLUE SYSTEM REQUIREMENTS (Not to scale)
IMPORTANT INFORMATION
A. THE APPLIANCE AND FLUE SYSTEM SHALL BE INSTALLED IN COMPLIANCE
WITH AS/NZS 2918:2001 AND THE APPROPRIATE REQUIREMENTS OF THE
RELEVANT BUILDING CODE OR CODES.
B. APPLIANCES INSTALLED IN ACCORDANCE WITH THIS STANDARD SHALL
COMPLY WITH THE REQUIREMENTS OF AS/NZS 4013 WHERE REQUIRED BY THE
REGULATORY AUTHORITY I.E. THE APPLIANCE SHALL BE IDENTIFIABLE BY A
COMPLIANCE PLATE WITH THE MARKING “TESTED TO AS/NZS 4013”
C. ANY MODIFICATION OF THE APPLIANCE ,THAT HAS NOT BEEN APPROVED IN
WRITING BY THE TESTING AUTHORITY, IS CONSIDERED TO BE IN BREACH OF
THE APPROVAL GRANTED FOR COMPLIANCE WITH AS/NZS 4013
D. MIXING OF APPLIANCE OR FLUE SYSTEM COMPONENTS FROM DIFFERENT
SOURCES OR MODIFYING THE DIMENSIONAL SPECIFICATION OF COMPONENTS
MAY RESULT IN HAZARDOUS CONDITIONS. WHERE SUCH ACTION IS
CONSIDERED, THE MANUFACTURER SHOULD BE CONSULTED IN THE FIRST
INSTANCE.
E. CRACKED AND BROKEN COMPONENTS E.G. GLASS PANELS OR FIRE BRICKS,
MAY RENDER THE INSTALLATION UNSAFE.
F. SEISMIC RESTRAINT:
• Secure the heater base to the hearth or sub-framing with Dynabolts or similar.
• Follow local Council’s Specifications.
More than 30003000
or less
600 min.
3000
1000 min. if clear
within 3000 of
flue top
.
3000
Any nearby
structure
.
1000 min. if clear
within 3000 of
flue top
MINIMUM HEIGHT OF FLUE SYSTEM EXIT
NOTE : Dimensions are in millimetres
3000
or less
600 min.
More than 3000
3000
.
Increase from
1000 min. until
clear within
3000 of flue top

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FIG E: MAIN AIR INTAKE DUCT ASSY (Not to scale)

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Yunca Tommi Flue - Installation
1. With the Tommi fire to hand (Preferably in the room) mark the positions of the external air supply hole
and the seismic hold downs. Confirm against the actual Tommi. If there is a severe clash with a column
or stud, the air inlet position may be swapped about the centreline of the fire by removing the rear panel
and reversing it. You may find it easier to cut the hole for the air inlet and drill the holes for the seismic
fasteners before positioning the fire in place.
2. Determine the position of the centre of the Tommi flue horizontally in the room. Mark this on the floor.
Confirm with everyone concerned that this is where the fire should sit.
3. Transfer this floor position mark to the ceiling directly above using a plumb bob, laser or other means.
Mark a line from this point up and down the slope of the ceiling and a line through the point across the
slope forming a cross.
4. Accurately determine the actual slope of your ceiling. Using the numbers from the supplied “Ceiling Tile
Frame Cut Out” chart, mark out the rectangle on the ceiling. (Views are taken from inside the room,
looking up. The ceiling is “see through”.)
5. Ensure that the flue will miss ceiling and roof support members. The minimum rear clearance for the
Tommi fire is 100mm from the wall to the fan housing, at the rear of the fire. If the fire is being set up
parallel to the wall, this clearance will be achieved with a distance of 350mm from the wall to the centre
of the flue. (See Fig. 1 below).
Fig 1 –Plan View - Tommi Installed Parallel to Main Wall

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6. If the fire is to be set up to be diagonally across a corner, the minimum clearance to the walls at each
side is 400mm. This is achieved with a parallel distance from each wall to the centre of the flue of
879mm. (See Fig 2 below).
Fig 2 –Plan View –Tommi Installed Diagonally
Fig 3 –Sloped Ceiling –Frame Opening Dimensions
ANGLE
OPENING
W
x
L
0
335
x
335
5
335
10
340
15
345
20
355
25
370
30
385
35
410
40
435
45
475

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7. Unpack the Ceiling Tile Frame and confirm that the notched out arrows, four positions, align with the
laser cut numbers for the actual slope of your ceiling in degrees. (E.g. 10 degrees being halfway
between “0” and “20” degrees.) Loosen the clamping/retaining screws and make any necessary
adjustments until the frame is sized to match the slope of your ceiling.
Fig 4 –Sloped Ceiling - Angles
8. Confirm that your rectangle marked out on the ceiling will take the correctly adjusted Ceiling Tile Frame,
and is correctly positioned up and down slope.
9. Cut out the ceiling rectangle. - You can cut around the outside of the line.
10. Confirm the Ceiling Tile Frame will fit in the hole and looks appropriate.
11. Frame out the sides of the cut-out from within the room, or from the ceiling cavity (if you have access)
to support the sides of the Ceiling Tile Frame when installed.
12. Install the Ceiling Tile Frame up against the ceiling and attach it to the blocking, using screws through
the long slots in the predrilled/slotted mount tabs (You may yet wish to slide the Ceiling Tile Frame up
or down the slope of the ceiling). Caution: The edges of the frame are sharp.
ANGLE
L
0
558
5
559
10
562
15
568
20
576
25
588
30
603
35
622
40
646
45
677

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13. Take the painted Drop Box and conduct a trial fitting of it up into the Ceiling Tile Frame. Confirm that:
13.1. It can be made vertical. (Perpendicular to the floor.)
13.2. It can be positioned at the correct height vertically to cope with: Floor Protector + height of
Plinth + height of Tommi + length of available Flue Guard and still have the Flue Guard lap
neatly onto the lower portion of the Drop Box.
13.3. The Drop Box is centralised over the floor mark position for the fire.
14. Mark the midpoint of each side of the Drop Box and use masking tape across to find the centre.
15. Check position with plumb bob or laser etc. You have some latitude to enlarge the hole and move the
Ceiling Tile Frame up or down the ceiling slope as required. You may temporarily install the two halves
of the Ceiling Tile –as described below –to determine where the Drop Box has to sit.
16. Put a couple of temporary screws through the centre holes of the Drop Box and Ceiling Tile frame
flanges, allowing for perpendicular adjustment front to back (Caution: These centre screws must be
removed once rivets are fixed in the outer holes, as they would otherwise inhibit the flue from sitting in
the proper position).
17. Mark position of Drop Box relative to Ceiling Tile Frame –vertically and up and down slope.
18. When everything is positioned correctly, remove Drop Box and permanently install Ceiling Tile Frame
with 3 screws through round holes in each tab, each side into blocking timber.
Fig 5

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19. Reinstall Drop Box to marked position, confirm vertical, correct height and centralised and fix in place
using rivets through predrilled holes in side flanges of Ceiling Tile Frame both sides.
Fig 6
20. Remove temporary screws from centre holes once rivets have been fixed in place (in outer holes).
21. Place the Inner REAR Ceiling Tile in position against the Ceiling Tile Frame from the down slope side
of the flue (or the side closest to the wall) and press push pin into the socket (Note: There is no sliding
flange on rear/inner ceiling tile –it may droop slightly).
21.1. Slide the Outer (upper) Ceiling Tile into the slots of the Ceiling Tile Frame on the upper side
of the flue. Move the two halves together such that the outer half slides over the inner.
21.2. Once you have the inner half captured inside the outer, push the two halves firmly together
so the push pins on both halves engage in their sockets.

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Fig 7
22. Establish the centre point of the flue on the roof above and cut a clearance hole for the outer liner.
23. Lower the first section of Inner Liner down through the roof and insert it into the saw toothed, square
support frame in the Drop Box.
24. Lower the first section of Outer Liner down through the roof over the Inner Liner and insert it into the
Drop Box. Drill and place a rivet or screw through the Drop Box and Outer Liner, on all four sides, where
the Liner touches the Drop Box. You can do this from within the ceiling cavity, above the ceiling, if you
have access, otherwise do it from within the room below the ceiling.
25. Before installing any more sections of Liner and while you can still see the spacers, connect the first
sections of Inner and Outer Liner together by drilling right through the Outer Liner and spacers and
installing screws or rivets. This connects the Liners together and prevents the Inner Liner from moving
out of place during any wind or seismic events.
26. Complete Liner install and install flue.
27. Install Tommi Flue Guard over flue within the room, lapping it over base of Drop Box and fastening to
it.
28. Install any remaining parts; Flashing around Outer Liner, Flue Cowl, etc.