Wood Stone WS-GFT-31 User manual

STONE-FIRED COOKING EQUIPMENT
Gas-Fired Tandoor Oven
Installation and Operation Manual
Additional Copies Available Upon Request
1801W.Bakerview Rd. Bellingham WA 98226
Toll-Free 800-988-8103 Tel.[phone] Fx.360-650-1166
www.woodstone-corp.com
Revised August 2006
WS-GFT-31 and WS-GFT-35

Wood Stone WS-GFT-35-(RND,SQR,OCT)-(NG, LP),
WS-GFT-31-(RND,SQR,OCT)-(NG, LP)
Tandoor Installation and
Operating Instructions
DO NOTTHROWTHIS MANUAL AWAY
RETAIN THIS MANUAL FOR FUTURE REFERENCE.
Additional copies of this manual and prompt responses to
service/maintenance questions are available from Wood Stone @ 800-988-8103.
IMPORTANT: Consult your local gas supplier for a statement outlining a procedure to be
followed in the event you smell gas. Post the statement in a prominent location.
FORYOUR SAFETY
Do not store or use gasoline or other flammable vapors or liquids in the
vicinity of this or any other appliance.
Also, always keep the area under and around this appliance free and clear of
any and all combustible materials.
It is recommended that this applinace be installed, maintained and serviced by authorized professionals.
WARNING: Improper installation, adjustment, alteration, service or maintenance can
result in property damage, injury or death. Read the installation, operation and
maintenance instructions thoroughly before installing or servicing this equipment.
Wood Stone's gas-fired Tandoor was tested and approved by Intertek Testing
Services, as specified by ANSI Z83.11a-2004, CSA 1.8a-2004. It was also inspected
for compliance with ANSI/NSF Standard 4. It bears the ETL marks for safety and
sanitation.
Wood Stone Corporation 1801 W. Bakerview Rd. Bellingham WA 98226
WARNING
This product must be installed by a Licensed Plumber or Gas Fitter when
installed within the Commonwealth Of Massachusetts.

Questions? Call Wood Stone at 800-988-8103 www.woodstone-corp.com 3
Tandoor Oven Installation and Operation Manual
August 2006
GENERAL INFORMATION
Utility Specifications
Gas-
1/2 - inch NPT gas inlet (female threaded)
40,000 Btu Natural Gas or
Propane. Gas type must be specified when
ordering.
Gas connection should be made using an ap-
proved flexible connector and the unit must be
restrained in accordance with all relevant local
and/ornationalcodes.Gasconnectionis made
beneath the unit at the rear.
Venting
This appliance should be installed under an
exhaust hood, in accordance with all relevant
local and national codes, and in a manner
acceptable to the authority having jurisdiction.
Please contact Wood Stone for more detailed
information.
Unit ShippingWeight 750 lbs.
Top (Round Model)
Top (Square Model)
Top (Octagonal Model)
Side View
Front
WS-GFT-31

Questions? Call Wood Stone at 800-988-8103 www.woodstone-corp.com 4
Tandoor Oven Installation and Operation Manual
August 2006
UtilitySpecifications
Gas-
1/2 - inch NPT gas inlet (female threaded)
40,000 Btu Natural Gas or
Propane. Gas type must be specified when or-
dering.
Gas connection should be made using an ap-
provedflexibleconnectorandtheunitmustbere-
strainedin accordance withallrelevant local and/
or national codes. Gas connection is made be-
neathunitatrear.
Venting
This appliance should be installed under an
exhausthood,inaccordancewithallrelevantlocal
and national codes, and in a manner acceptable
totheauthorityhavingjurisdiction.Pleasecontact
WoodStoneformoredetailedinformation.
Unit ShippingWeight 1,100 lbs.
Top (Round Model)
Side
Front
Top (Square Model)
Top (Octagonal Model)
WS-GFT-35
GENERAL INFORMATION

Questions? Call Wood Stone at 800-988-8103 www.woodstone-corp.com 5
Tandoor Oven Installation and Operation Manual
August 2006
INSTALLATION CLEARANCES
TheWoodStone gas-firedtandoorshould beinstalled
with at least 1-inch side clearance to combustible
construction. The unit should be installed on a non-
combustible floor, or one provided with a non-
combustible covering that extends at least 36-inches
in all directions. Any combustible construction above
(overhanging) the appliance should be protected in a
manneracceptableto theauthorityhavingjurisdiction.
ENCLOSURES
If the appliance is enclosed, provisions should be
made so that the appliance can easily be removed
from the enclosure.
The shaded area in the figure must be left
unobstructed, for critical combustion air, and easily
accessible, for removal of the drip/debris pan and
operationof the pilotsafety valve.If thisarea must be
covered, the cover should be easily removable and
heavily perforated.
INSTALLATION
VENTING
TheWoodStone gas-firedtandoor must beinstalled underan appropriate NFPA 96approved
exhaust hood. Refer to local and/or national codes for hood specification requirements.The
hood must be designed for the removal of the combustion products of gas, as well as the
cooking vapors related to the intended use of the oven.
Some jurisdictions may require that theTandoor be interlocked to the hood ventilation system
topreventoperation oftheappliance whentheventilation systemisnot turnedon.If aninterlock
is required, use an approved gas solenoid (supplied and installed by others), wired so that the
gas supply to the appliance is turned off whenever the ventilation system is turned off.
Noncombustible floor, or one protected in a manner
acceptable to the authority having jurisdiction,
extending 36 inches in all directions
1-inch side clearance to combustible construction
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Combustible construction overhanging the
appliance should be protected in a manner
acceptableto the authorityhavingjurisdiction.

Questions? Call Wood Stone at 800-988-8103 www.woodstone-corp.com 6
Tandoor Oven Installation and Operation Manual
August 2006
GAS CONNECTION
The gas connection is made at the lower rear of the appliance - see below for details.
This appliance is equipped with casters; it must be installed with the casters supplied, a
connector complying with ANSI Z21.69 or CAN/CGA 1-6.9 and a quick disconnect device
complying with ANSI Z21.41 or CAN 1-6.9 . It must also be installed with restraining means to
guard against transmission of strain to the connector.
IMPORTANT: Thegassupply tothisappliance shouldbeequippedwithan individualappliance
shutoff valve that is capable of completely isolating the appliance from the main gas supply.
This valve should be installed in such a manner as to be readily accessible to the operator of
the appliance.
The Wood Stone gas-fired tandoor is equipped with a 1/2 - inch NPT female gas connection,
located on the underside of the rear of the unit. Anchor points for the restraining means are
provided on the underside of the tandoor; they are holes punched in the rear portion of the
drip/debris pan rails.
GAS RATINGS
TheWS-GFT-35-NG israted for40,000 BtuNaturalGas inputat a4.0"W.C.manifoldpressure.
TheWS-GFT-31-NG is rated at 40,000 Btu Natural Gas Input at 4.0"W.C.manifold pressure.
The WS-GFT-35-LP is rated for 40,000 Btu Propane input at a 10.0"W.C.manifold pressure.
The WS-GFT-31LP is rated for 40,000 Btu Propane input at a 10.0"W.C.manifold pressure.
THIS APPLIANCE IS NOT FOR USE WITH SOLID FUEL
Gas Code Limitations
The installation of this appliance must conform with local codes, or in the absence of
local codes, with the National Fuel Gas Code, ANSI Z223.1, The Natural Gas installation
Code CAN/CGA-B149.1 or the Propane Installation Code, CAN/CGA-B149.2, as applicable
including:
Theappliance anditsindividual shutoffvalve (suppliedbyothers) mustbedisconnected
fromthe gas supplypiping systemduring anypressure testing ofthat systemat testpressures
in excess of 1/2 psi (3.45 kPa).
The appliance must be isolated from the gas supply piping system by closing its
individual manual shutoff valve (supplied by others) during any pressure testing of the gas
supply piping system at test pressure, equal to or less than 1/2 psi (3.45 kPa).
INSTALLATION

Questions? Call Wood Stone at 800-988-8103 www.woodstone-corp.com 7
Tandoor Oven Installation and Operation Manual
August 2006
PILOT LIGHTING PROCEDURE
Itis recommended thattheTandoor’s mainburnercontrol knob (ontop of unit)be turned tothe
OFF position when attempting to light the pilot flame.
1.Turn the gas control knob on the safety valve to the PILOT position.
2.Push down on the knob and light the pilot immediately by pressing the red button of the spark igniter.
Press the igniter every 2 seconds until a pilot flame is established. Hold the knob down for one full
minute after lighting the pilot.
3. Release the gas control knob; the pilot flame should continue to burn. If the pilot flame does
not remain lit, turn the gas control valve to the OFF position, wait 5 minutes, and then repeat
the steps above.
4. Once pilot is established, turn the gas control knob on the safety valve (counterclockwise)
from the PILOT to the ON position. NOTE: failing to turn the gas control knob to the full ON
position will reduce the flow of gas, and could result in poor ignition of the main burner.
5. Use the control knob on top of the tandoor to control the height of the cooking flame.
FIRST FIRING
The first time the tandoor is fired, the heatup should be slow and steady. Hold the burner at a
very low flame (control valve set at '1' on models that are marked) for at least 5 hours before
graduallyincreasingtheflame intensity.Followingthis procedurewill safelysaturatethe vessel
with heat.You may notice some small "crazing" cracks in the ceramic vessel after a few heat-
ups and cool-downs; don't be alarmed; this is normal, and will not affect the longevity or
performance ofthe tandoor.
OPERATION
Front View
spark igniter button
gas control knob
DAILY OPERATION
The Tandoor will need to be heated for approximately one hour at full
flame height with the lid on. Once the vessel is at the desired
temperature, remove the cover and set the control valve to 1and 1/3
(1.3) This should maintain a good starting temperature for cooking
breads and proteins.Note that this setting may vary slightly depending
on gas type (NG or LP) and other factors.The burner control knob will
need to be used to adjust the heat, depending on the amount of
production required.The tandoor will overheat if the lid is left on after
heat-up.
Use of ceramic briquettes is unnecessary and will void the warranty.
Seasoning for the vessel is unnecessary and will void the warranty.
Plain water may be applied with a damp cloth to the vessel before
each use.
CLEANING
Debris that falls into the tandoor will accumulate in the drip/debris tray under the unit.This tray
should be checked periodically and emptied as necessary. Any accumulation of soil on the
ceramicvessel canberemoved (ifdesired)by operatingthe tandooratfull flameuntilthebuildup
is gone. The stainless cabinet, and granite top of the unit should be cleaned as necessary,
using a mild detergent and a nonabrasive scouring pad.
First Firing Setting
Typical Cooking Flame Setting
Top View
Main Burner Control
Knob

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Tandoor Oven Installation and Operation Manual
August 2006
Wood Stone warrants its equipment to the original purchaser against defects in
material or manufacture for a period of one year from the original date of purchase,
subject to the following exclusions and limitations.
LIMITED WARRANTY
EXCLUSIONS
The warranties provided by Wood Stone do not apply in the following instances:
1. In the event that the equipment is improperly installed. Proper installation is the responsibility of the
installer; proper installation procedures are prescribed by theWood Stone installation manual.
2. In the event the equipment is improperly maintained. Proper maintenance is the responsibility of the
user;proper maintenance procedures are prescribed in theWood Stone installation manual.
3. In the event that the failure or malfunction of the appliance or any part thereof is caused by abnormal
use or is otherwise not attributable to defect in material or manufacture.
4. In the event that the appliance, by whatever cause, has been materially altered from the condition in
which it left the factory.
5. In the event that the rating plate has been removed, altered or obliterated.
6. On parts thatwouldbe normally worn or replacedunder normal conditions.
7. Normal cracking due to expansion and contraction stress relief in the cooking vessel.
8. In the event that pressed log products of any type have been burned in the equipment.
Ifanyoralstatementshavebeen maderegardingthisappliance,suchstatementsdonotconstitutewarranties
and are not part of the contract of sale.This LimitedWarranty constitutes the complete, final and exclusive
statementwith regard to warranties.
THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHERWARRANTIES WHETHER
WRITTEN, ORAL OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE ORWARRANTY AGAINST LATENT
DEFECTS.
LIMITATIONS OF LIABILITY:
In the event of warranty claim or otherwise, the sole obligation of Wood Stone shall be the repair and/or
replacement, at the option of Wood Stone, of the appliance or component or part thereof. Such repair or
replacementshallbe at theexpenseofWood Stone with theexceptionof travelover100 miles or twohours,
overtime, and holiday charges which shall be at the expense of the purchaser. Any repair or replacement
underthis warranty doesnot constitute an extensionof the originalwarranty for anyperiod of the appliance
orforanycomponent or part thereof.Partsto be replaced underthiswarrantywill be repairedorreplaced at
the option ofWood Stone with new or functionally operative parts.The liability ofWood Stone on any claim
ofanykind,includingclaims based onwarranty, expressedor implied, contract, negligence, strict liability or
anyother theories shallbe solely andexclusively the repairor replacement ofthe product asstated herein,
and such liability shall not include, and purchaser specifically renounces any rights to recover, special,
incidental, consequential or other damages of any kind whatsoever, including, but not limited to, injuries to
persons or damage to property, loss of profits or anticipated profits, or loss of use of the product.
TO SECURE WARRANTY SERVICE:
If you claim a defect covered by this LimitedWarranty, direct your claim to
WoodStoneCorporation1801W.BakerviewRd. Bellingham,WA98226 USA Attn:NationalServiceManager