Yunca Gas WEGJ 2000 User manual

Wegj Install - Mar2007 Page 1 of 4
A division of Terry Young Ltd , New Zealand
INSTALLATION INSTRUCTIONS for
WEGJ 2000 FREESTANDING WOODBURNER
APRIL 2007
TESTED in compliance with AS/NZS 2918: 2001
A. Yunca recommends that competent trades persons carry out all installations (e.g. NZHHA
Registered Installer), to obtain maximum performance and safe, efficient heating.
B. A permit is required and we suggest you check with local 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 –
1. Must extend a minimum of 300mm in front of the door aperture.
2. Must extend at least 100mm from each side of the heater.
3. Ash Floor Protector must be constructed of non-combustible materials, with a
minimum thickness of 12mm.
D. Seismic restraint – Heater must be restrained from seismic movement as required by NZS
7421. 10mm diameter bolting holes in the rear corners allow restraint.
E. Manufacturers recommended tested minimum clearances from combustible walls.
Tested to AS/NZS 2918 : 2001 by APPLIED RESEARCH SERVICES Clearance
Rear Clearance (with YUNCA flue shield fitted) 100mm
Side Clearance (with YUNCA flue shield fitted) 200mm
Corner Clearance (with YUNCA flue shield fitted) 30mm
Rear Clearance (without YUNCA flue shield) 350mm
Side Clearance (without YUNCA flue shield) 200mm
Corner Clearance (without YUNCA flue shield) 140mm
F. YUNCA Flue Kit (Tested to AS/NZS 2918:2001 Appendix F): FIG A, B & E
1. 4.2m x 150mm stainless steel flue. 4. 1 x insulation boundary shield.
2. 2.4m x 250mm galvanised liner. 5. 3 x spider brackets.
3. 1 x ceiling tile. 6. 1 x weather cap & cowl.
Please Note: All joints must be sealed with flue sealing compound. Use stainless steel
screws or rivets to join the flue pipe (three equally spaced places at each joint). The first
length of flue pipe must be screwed to flue spigot. The required minimum flue termination
height is 4.6 m above the floor protector.
G. WEGJ Flue Mounted Shield (Flue Guard) Kit (Tested to AS/NZS 2918:2001): FIG A
1 x 1200mm length lined back guard, plus an optional adjustable 900mm extension.
1 x 1200mm length perforated front guard.
1 x 1200mm length tertiary back guard with spacers.
1 x top front deflector shield (half round shaped, angled when installed).
Please Note: The minimum Flue Guard Height Is 1200mm.

Wegj Install - Mar2007 Page 2 of 4
WEGJ – TYPICAL FLUE INSTALLATION (drawings on the following pages are not to scale)
FIG A FIG B
5mm Max
300
570
100
50
LINER POSITIONED BY SPIDER
BRACKETS. TOP/BOTTOM FLUE
TOP CAP (Fits inside flue)
FLASHING
25 MM BETWEEN LINER
AND ANY TIMBER.
TIMBER RAILS
SUPPORT ANGLES
25 mm min BETWEEN LINER
& ANY TIMBER
LINER POSITIONED BY SPIDER
BRACKETS TOP & BOTTOM.
SUPPORT ANGLES
300mm sq TIMBER FRAME
CEILING
1200mm LINED
BACK GUARD
TERTIARY
BACK GUARD
TWO SEISMIC RESTRAINT
attachment points.
cover with caps.
600mm ABOVE THE RIDGE LINE (MIN) *
* If within 3.0m of ridge line*
1200mm FRONT GUARD
4.6 M. MINIMUM
Note: All Dimensions are in millimetres.
ASH FLOOR
PROTECTOR
Top Front
Angled
Deflector
CONDITIONS FOR FLUES
(Refer Fig. E)
1. The FLUE shall extend to:
Not less than 600mm above the highest point on the
roof if within 3.0m of that point.
Not less than 1000mm above the intersection
point with the roof and not lower than any point
of the roof within 3.0m.
In any case the length of the flue shall not be
less than 4.6m from the ash floor protector.
In some situations the Local Council may vary
the above requirements.
2. All parts of the chimney exposed to the outside
air shall be suitably insulated in accordance with
the manufacturers' recommendations.
When loose- fill insulation is used in the
adjacent ceiling space, maintain clearance
between the secondary shield and the loose-fill
insulation by provision of a boundary extending
200mm above the ceiling top surface.
This non-combustible boundary shield shall be
capable of preventing accidental migration of
the loose-fill by any action of wind or by
persons moving in the ceiling space.
CEILING PLATE
25mm min. BETWEEN LINER & ANY TIMBER
ENLARGEMENT OF CEILING ASSEMBLY
300
300mm Sq. TIMBER FRAME
TIMBER RAILS
SUPPORT ANGLES
LINER POSITIONED BY SPIDER
BRACKETS. TOP/BOTTOM
LOOSE FILL BOUNDARY
SECONDARY SHEILD.
CUT CEILING MATERIAL
BACK 25mm CLEAR
OF BOUNDARY SHEILD.
CEILING
25
300

Wegj Install - Mar2007 Page 3 of 4
FIG.C: WEGJ HEATER DIMENSIONS AND WATER BOOSTER POSITIONS (not to scale)
Ash Floor Protector
300
750 225
535
600
760
Right Hand std. water booster position
Left Hand std. water booster position
130
393
471
FIG.D: HEATER POSITION (not to scale)
950 Min
25 mm AIR GAP
300
100
585
50
885
A
F
BG
O
J
DD
C
N
K
J
P
C
DD
O
K
C
N
H
M
L
E
E
D
DH
Above: Non combustible wall clearances
. Brick lining
from floor to within 25mm of ceiling. Leave air vents at the
bottom to allow airflow in the cavity. If Yunca flue mounted
shield is fitted, brickwork may be 1200mm high as long as
all vertical joints in top and bottom of brickwork are left out to
allow airflow when brickwork is capped.
FIG D: MINIMUM FIRE TO COMBUSTABLE WALL CLEARANCES - WEGJ
(WITH YUNCA FLUE MOUNTED SHIELD FITTED). Measurements in millimetres.
A B E F G H
100 200 30 325 575 454
FIG D: MINIMUM FLOOR PROTECTION MEASUREMENTS
(WITH YUNCA FLUE MOUNTED SHIELD FITTED). Measurements in millimetres.
C D J K L M N O P
300 100 950 935 1247 1147 610 750 635

Wegj Install - Mar2007 Page 4 of 4
FIG E: FLUE SYSTEM REQUIREMENTS (not to scale)
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
IMPORTANT INFORMATION
A. The appliance and flue system shall be installed in compliance with AS/NZS 2918 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.
IF A WATERBOOSTER IS FITTED:
Note: A water booster cannot be fitted in some Clean Air zones (check local council regulations)
A. Do not connect to an unvented hot water system
B. Install in accordance with AS 3500.4.1 or NZS 4603 and the appropriate requirements of the
relevant building codes.
Seismic Restraint
Secure the heater base to the hearth or sub-framing with Dynabolts or similar.
Follow local Council’s Specifications.