Firenzo Contessa AG10 WET User manual

Please read this booklet and keep for future reference for the safe
installation of your:
FREESTANDING CLEAN AIR WOODBURNER
This fire conforms with Ecan Requirements
All installations must be in accordance with these instructions. Consult
with the building authority having jurisdiction to determine the need for a
permit prior to commencing the installation. Failure to follow these
instructions may also void your fire insurance and warranty.

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INDEX
Page No: Item No: Topic
3 1 Warnings
4 2 Installation Responsibilities
4 3 Floor Protector Requirements
5 4 Installation Clearances
6 5 Assembly Instructions
7 Fitting Seismic Restraints
8 6 Hot Water Booster
9 Position of Triangular Baffles
10 7 Flue Installation
11 Minimum Height of Flue Exit
Edited 14/11/2012

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1. WARNINGS
THIS APPLIANCE SHOULD BE MAINTAINED AND OPERATED AT ALL
TIMES IN ACCORDANCE WITH THESE INSTRUCTIONS.
The Contessa AG10 WET is tested to N.Z. Standards AS/NZS 2918:2001.
If this heater is incorrectly installed a house fire may result. For your safety follow
the installation instructions carefully.
Do NOT connect the heater to a chimney serving another appliance.
Although the exterior of the heater may appear cool, contact with the unit may cause
burns, warn children and others of the possibility of injury should they touch the
heater.
Do NOT dry clothing or unseasoned wood directly in contact with the heater.
Keep all household combustible materials at least 600mm away from front of the
heater. This includes clothing, furniture, wood, newspaper, plastic, matches, etc.
DO NOT USE FLAMMABLE LIQUIDS OR AEROSOLS IN THE VICINITY
OF THIS APPLIANCE WHEN IT IS OPERATING.
Use caution when reloading with fuel. Do NOT attempt to load fuel into the heater
when the fire inside the stove is at or near its peak.
Do NOT burn large quantities of paper or combustible material that would create an
extremely hot/quick fire.
Do NOT burn highly coloured paper or brochures (junk mail).
USE ONLY DRY WOOD. AVOID BURNING WET OR GREEN WOOD.
THE USE OF SOME TYPES OF PRESERVATIVE TREATED WOOD AS A FUEL
CAN BE HAZARDOUS.
TIMBER TREATED WITH COPPER CHROMIUM AND ARSENIC TYPE
PRESERVATIVES WILL LEAVE TOXIC RESIDUES IN THE ASH, FIREBOX
OR WITHIN THE FLUE; TIMBER OFFCUTS FROM BUILDING
CONSTRUCTION WILL OFTEN CONTAIN BORIC SALTS. THE
COMBUSTION OF THIS MATERIAL OVER PROLONGED PERIODS CAN
PRODUCE ADVERSE EFFECTS ON REFACTORY LINING IN SOLID FUEL
APPLIANCES. EMISSION OF POISONOUS GASES CAN ALSO BE
EXPERIENCED WITH THE BURNING OF TREATED WOOD.
Driftwood with salt content will also cause rapid deterioration of the heater and
should not be used.

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2. INSTALLATION RESPONSIBILITIES
WARNING: THE APPLIANCE AND FLUE SYSTEM SHALL BE
INSTALLED IN ACCORDANCE WITH AS/NZ 2918:2001 AND THE
APPROPRIATE REQUIREMENTS OF THE RELEVANT BUILDING CODE
OR CODES.
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.
CAUTION: 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.
Strict adherence to these instructions will meet these standards.
Any variation from these installation instructions or any doubt about them must be
checked against the requirements of the Standards.
WARNING:
Care must be taken to protect the wetback coil and associated pipework if being
installed in a hard/corrosive water area. Damage caused to the Wetback coil if fitted
in a hard/corrosive water area will not be covered under the manufacturer’s warranty.
Please leave this manual with the owner when installation is complete.
3. FLOOR PROTECTOR REQUIREMENTS
The heater should always be installed on top of its base due to high temperatures
sustained over long periods. The base must be anchored to both the floor protector
and the floor for seismic restraint. Anchor points are provided in the base or on the
rear legs.
PEDESTAL, DRAWER BASE & LEGS MODELS:
If the heater is to be placed on or within 500mm of a heat sensitive floor,
an insulated floor protector with a minimum thickness of 40mm is required
consisting of 20mm of an approved insulation material i.e. 2 sheets of 10mm
micorboard or superlux, 10mm tile backing board and 10mm tiles or similar on the
top surface. All joints on the upper surface should be sealed to prevent spilt ash from
contacting any heat-sensitive material.

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4. INSTALLATION CLEARANCES
When installing the Contessa AG10 on a leg base ADD 70mm to vertical
measurements.
If the heater is to be placed on or within 500mm of a heat sensitive floor an insulated floor protector will be required.
HEATER MUST BE INSTALLED WITH FLUE PIPE SHIELD
CLEARANCES A B C D E F G H J K L M N O
ON PED OR
DRAWER
130* 280
420
110 100 260* 600 420 860
1055* 1380
1200 795
600
ON LEGS
130* 280
350
110 100 260* 600 420 860
985* 1310
1130 725
600
*Clearance A, F & K:
Can be reduced
BY
30
mm provided
a Contessa
cooktop grill is fitted onto the rear cast top of the fire.

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5. ASSEMBLY INSTRUCTIONS
1. Remove all packaging and timber.
2. Remove parts from inside the firebox.
3. Position the base with angle steel down onto the floor protector, taking the
necessary final clearance into consideration. The base has the flue centre indicated on
the anchoring bracket. Check clearances as per section 4 on page 5.
4. At this point a hole in the ceiling to accommodate the flue may be cut and the
liners installed.
5. Remove both front and rear top castings.
6. Place firebox on base.
7. Plumb in the wetback in accordance with accepted plumbing practises refer to
section 6 page 8. Ensure the wetback is not pushed down or comes into contact with
the baffle bricks or flue gas deflectors. This will cause premature wear to the wetback
and will not be covered by the manufacturer’s warranty.
8. Check that the two triangular bricks on top of the baffles are sitting correctly –
refer diagram on page 9.
9. Replace the rear top casting and refit the front top casting ensuring it fits neatly
into the rear sealed channel.
10. Refit the stainless steel spigot in the top rear section of the firebox.
11. Assemble and fit flue as per instructions (page 10 & 11). A flue shield must be
fitted.
12. If the option of reducing dimension A to 100mm was used
then the optional cooktop grill should be fitted on the top rear casting
of the fire at this stage. Secure to the rear heatshield on the fire with the
bolts provided.
13. Secure the both the wood-burner and floor protector to the floor for seismic
restraint as shown on page 7. DUE TO NZ BEING AN EARTHQUAKE PRONE
COUNTRY, IT IS IMPORTANT TO ANCHOR THE CONTESSA DOWN IN
CASE OF EARTH MOVEMENT.
14. Assemble and fit the gold/chrome plated or black rails.
15. Fit door knob as shown »» »»
16. Fit the control knob - place the flat on the knob to the flat on the air
control shaft situated on the right hand side of the fire. Press home firmly.

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FITTING SEISMIC RESTRAINT BRACKETS ON CONTESSA AG
PEDESTAL OR DRAWER BASE MODELS
1. Remove bolts at rear of fire box
2. Fit Seismic Restraint brackets
3. Secure both the floor protector
and the appliance to the floor,
using a dyna bolt or similar.
LEG MODELS
1. Place firebox on leg assembly
and fit brackets.
2. Locate as per appropriate clearances
3. Secure both the floor protector and the
appliance to the floor, using a dyna bolt
or similar.

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6. WETBACK
The Contessa AG10 Wet is fitted with a wetback to supplement the hot water system.
Looking at the FRONT of the fire the left side is the cylinder to wetback pipe and the
right pipe is the hot water flowing back from the wetback to the cylinder.
WARNING:
DO NOT CONNECT TO AN UNVENTED HOT WATER SYSTEM.
DO NOT USE THIS FIRE WITHOUT WATER RUNNING THROUGH THE
WETBACK.
INSTALL IN ACCORDANCE WITH AS 3500.4.1 OR NZS 4603 AND THE
APPROPRIATE REQUIREMENTS OF THE RELEVANT BUILDING CODE
OR CODES.
For best performance apply the following rules:
1. Keep it simple with the shortest and straightest possible pipe run.
2. The heater should be within 6 metres of the hot water cylinder, the closer the
better.
3. Keep all flow pipes rising - the cylinder should be at least 300 mm above the
wetback outlet.
4. Use only 25mm supply and return pipes.
5. Where possible the pipes should be insulated.
WARNING:
Care must be taken to protect the wetback coil and associated pipework if being
installed in a hard/corrosive water area. Damage caused to the Wetback coil if fitted
in a hard/corrosive water area will not be covered under the manufacturer’s warranty.

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CONTESSA AG 10 WET
IMPORTANT
BAFFL
ES
UPON
INSTALLATION
CHECK THAT THE
TRIANGULAR
BRICK ON TOP OF
THE BAFFLES IS
PLACED AS
SHOWN

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7. FREESTANDING FLUE SYSTEM
INSTALLATION INSTRUCTIONS
1. Position heater on floor protector ensuring all heater
clearances are correct as per clearances on page 5.
2. Once the location is confirmed, the appliance and floor
protector shall be fixed to the floor itself (refer to
page 6 & 7 .
3. Extend a plumb line from the centre of the fire flue pipe
spigot to the ceiling. Mark position on ceiling and roof.
4. Trim hole and nog as required ensuring that a 25mm
safe clearance between combustible materials and flue
components are maintained. Fix with non combustible
spacers and screws or clouts on all four sides.
5. Cut and frame (when required an opening in the roof,
position the outer casing through the roof until it is flush
with the under side of the ceiling, making sure as with
the ceiling there is a 25mm safe clearance between
non-combustible materials and the flue components.
Fix as in step 4.
6. Fix appropriate flashing around outer casing to the
roof to ensure a weatherproof seal.
7. Assemble flue pipe sections ensuring all seams are in
line, the assembly is straight and crimped. Ends are
pointing downwards. Fix each joint with three stainless
rivets or self-tapping screws.
8. Place ceiling plate with folded edges upwards over
heater spigot.
9. Position the flue pipe into the heater spigot. The flue
pipe can either lowered from the top as a single unit or
fed up from the room a length at a time, ensuring that
all joints are fixed properly.
10. Slide the inner casing into place, between the outer casing
and the flue pipe.
11. The flue pipe must extend 200mm above the outer casing.
Note: Extra lengths of flue pipe, inner and outer casing
may be required to achieve the minimum clearance from
the roof.
12. Slide top spreader over flue pipe down into outer and inner
casing and tighten.
13. Slide cowl over flue pipe until it rests on spreader. Secure
with rivets or self-tapping screws.
14. Fit rainhat. Do not fasten as it must be removable for flue
pipe cleaning.
15. Fix ceiling plate to ceiling maintaining an even gap all around the flue pipe.
Note: Ensure ceiling plate is spaced off from the ceiling with ceramic spacers supplied.
CAUTION: Mixing of appliance or flue system components from different sources or modifying the
dimensional specifications of components may result in hazardous conditions. Where such action is
considered the manufacturer should be consulted in the first instance.
WARNING: The appliance and flue system shall be installed in accordance with AS/NZS 2918:2001
and the appropriate requirements of the relevant building code or codes.

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FIRENZO
FIRENZOFIRENZO
FIRENZO
WOODFIRES
by
HEWITSONS LIMITED
Manufacturers of:
Lady Kitchener
Contessa
Coaster
Bronte
Dante
Royale
Viking
Encore
Zealandia
Aqualux
Athena
Forte
Plaza
Deco
98 Niven Street
PO Box 3231
Onekawa
Napier
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.firenzo.co.nz