CHUBU COPORATION NJG-C User manual

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OPERATION MANUAL
NON-DUCTED TYPE
SMOKELESS BBQ ROASTER
MODEL NJG-C
 * Before operating this roaster unit, please read and understand
the instructions specified in this manual for proper and safety
use.
* Retain this manual for your immediate and future references.
Warning
Check your local gas supplier for the proper instructions to follow in the event
the user smells gas. These instructions shall be posted in a prominent location.
Warning
Improper installation, adjustment, alternation and maintenance can cause property
damage, injury or death.
CHUBU COPORATION
463, MORITADA, KUWANA, MIE, 511-0943, JAPAN
PHONE: [phone]

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FAX: [phone]
FOR YOUR SAFETY
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors
or liquids
in the vicinity of this or any other appliance
WANING:
Improper installation, adjustment, alternation, service
or maintenance can cause property damage, injury or
death.
Read the installation, operating instructions thoroughly
before installing or servicing this equipment.
** The following cautions indicate important safety subjects, please
follow   
these directions to prevent injury or property damage.
**Indications and their meanings are as follows:
Danger: Improper operation without following this sign could result
in a dangerous situation and death or injury .
Warning: Improper operation could lead to death or injury.
Caution: Improper operation could lead to injury or physical and property
damage.

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WARNING
Danger
Burning charcoal may emit hazardous levels or carbon monoxide.
Do not perform cooking operations unless the ventilation and exhaust systems
are operating according to the manufacturer’s specification.
Failure to comply may result in death by asphyxiation (carbon monoxide poisoning),
physical and property damage.
Samples of sign
Caution - Electric Shock
Indicates cautions (including warnings).
Contents of the caution are shown in or around with pictures or words.
The sign in the left shows “Caution - Electric Shock”
No Disassembly
Indicates forbiddance.
Contents of the forbiddance are shown in or around with pictures or words.
The sign in the left shows “Do Not Disassemble”.
Check Gas Source
Indicates Compulsion.
Contents of the compulsory are shown in or around with pictures or words.
The sign in the left shows “Check Gas Source”.

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WARNING
Danger
If you smell gas, immediately stop operating the roaster, turn off the gas valve,
open windows and doors to release the gas. Contact the local gas supplier or
fire department from a neighbors phone. Never light a fire, turn on or off the light
switches, plug or unplug any electric appliances (ex. exhaust fan), or use the
telephone.The Leaking gas can catch fire or cause an explosion
No Fire
WARNING
Use only the type of gas specified on the nameplate. Improper gas source will cause
fire, burns, or carbon monoxide poisoning or mechanical troubles. If the gas source
is not clear, contact the distributor of the roaster or the gas supplier.
Out of Order
In case of relocation, check whether the type of supplied gas corresponds to
the gas source named in the plate on the roaster.
Improper gas source will cause the fire, burn, or carbon monoxide poisoning by
abnormal burning, mechanical troubles. If the gas source is not clear, contact the
distributor of the roaster or the gas supplier.
Check Gas Source
Be sure to keep the roasters’ area free and clear from combustible materials.
Combustible materials may cause a fire.
Forbiddance

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Never leave the roaster unattended while in operation.
Abnormal operation may cause a fire.
Never leave the roasters unattended or go to bed with the roaster ignited.
Forbiddance
Follow the installment instructions for the correct clearances to
combustible construction. Improper distance may create a fire hazard.
Installment
Standard
Conduct visual examination the ventilating system during normal maintenance
and clearing.
Warning
For safety reason, before operation, check the clearance to combustible and
non-combustible construction such as floors, walls, counters.
Warning
WARNING
Use the specified type of table.
Improper type of table may create a fire hazard condition.
Installment
Standard
Never remodel the setting around the roaster after installing the roaster.
Remodeling may cause problems or conflicts with the installation standard, and
may cause incomplete combustion or fire.
Forbidden

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While using the roaster, operate the exhaust fan to remove products combustion
and to let fresh air into the room, and never obstruct the flow of combustion
and ventilation air. Ensure the following Air Supply Volume and Exhaust Air
Volume for each roaster unit is provided.
Required Air Supply Volume ……... 300 m3/h per roaster
Required Exhaust Air Volume ……. 300 m3h per roaster
The ventilation and exhaust systems must be in operation for any and all
burner and cooking operations.
Ventilation
Never use the roaster without water in the water tank.
Not enough water may cause overheating.
Forbidden
Never disassemble or remodel the roaster.
Remodeling or disassembling may cause abnormal operation or troubles.
Contact your local service representative or the factory if you have any problems.
No
Disassembly
In the event of an emergency such as earthquake or fire, immediately stop using
the roaster. If you experience abnormal burning, odors or sounds coming from
the roaster, shutoff the gas and discontinue operation until the problem is corrected.
Using the roaster under such improper situation can cause fire, injury of property
damage.
Stop Using
WARNING
In the event of power failure or prolonged power failure, never attempt to
operate the roaster unit. Immediately check that the gas valve is turned to
to the “Close Position”.
Stop Using

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Each roaster unit, when installed, must be electrically grounded.
Warning
Be sure to disconnect power before cleaning, maintenance and repairs.
Warning
Install the roaster on a stable, solid, and level surface.
Failure to do so may cause injury or property damage.
Installation
Never install the roaster to the wet, damp or dusty locations.
Installment under those circumstances will cause the incomplete combustion
or mechanical troubles.
No
Installment
Never use the roaster for any purpose other than the original usage specified
by the manufactures. Improper usage will may cause injury or property damage
and may void the warranty.
Out of Use
Use only the roasting plate, grilling mesh and grate supplied by the manufacturer.
The use of improper parts may cause carbon monoxide poisoning, injury or property
damage and may void warranty.
Forbidden
Never use a large pot that covers the grate. Too large pot may cause carbon
monoxide poisoning, overheating or damage to the roaster.
Forbidden
WARNING

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Adjust the flame and heat according to the size of pot.
Too high of a setting may cause the handle to burn.
Heating Power
Adjustment
Keep your face away from the burner when lighting and while in operation.
Bringing the face close to the fire may cause burns.
Watch Out Heating
Make sure to prevent your customers or anyone from using the roasters for
anything other than the intended use. Never use the space below the roaster to
put anything for storage or safekeeping.
Improper usage may cause the improper operation, property damage, injury or
death
Forbidden
The roasting plate, grilling mesh and roaster body are hot when in operation or
just after using the roaster, never touch them except the control part.
Touching the heated parts may cause burns.
Caution - Hot
As the roasting plate, grilling mesh, water in the water tank are heated while using
or just after using the roaster, use the gripper to carry them and be careful not to
drop the parts or spill the water.
Dropping parts or spilling water will cause the personal injury or burns.
Caution - Hot
For proper operation and safety, inspect the clearances and air openings into
the combustion chamber daily.
.
Warning
Shut off the gas valve at the end of the day or while not in use.
Valve
During lighting storms, shut down the circuit breaker or disconnect the power cord.

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Electric current surges caused by the lightning will cause abnormal operation or
damage.
Pull the Plug
Out
MAIN PARTS
Roasting Plate
Top Ring
Burner Set
Water Tank
F.V. Damper
(under the Outer Case.
Grey color one）
Louver
(small)
焼アミ
Filter
Outer Case
Louver
(Large)
Charcoal Tray
Charcoal Pot
Control
Mesh Gripper Roasting Plate
Gripper
Grilling Mesh
Watering Pot

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PREPARATION
(As for the names of parts, see
page 8.)
SETTING EACH PART
1 Set the “FILTER” into the outer case.
2. Set the “WATER TANK” and “BURNER SET” into the outer
case.
Note: Put a Water Tank in the roaster unit after setting a
Burner Set
to a Water Tank beforehand; can be easily done.
Check whether a projection at leg of the burner is set into a hole on
the water tank , and the burner-set should be set correctly and firmly.
Improper setting of Burner Set will cause to incomplete combustion or
ignition failure
Gripper for Water
Tank
Small Trivet
(Option)
Large Trivet
(Option)
Gripper for
Charcoal
Por
t
Water Tank
Burner
Set

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3. Put the mountain of WATER into the water tank..
Note 1): 1,400 cc is a an appropriate amount.
Note 2): Use the provided WATERING POT.
Note 3): When putting water, pay attention not to splash
water
onto the burner and/or burner-head.
Splashed or wet burner/burner-head will cause to
ignition failure

Water
Tank
Burner Set
Watering
Pot
Flame
Rod
Flame
Detectin
g
Element
Put water in an aim at this line of
the part catching a burner.
(1,400 cc is an appropriate amount.)
（

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4. Set the CHARCOAL POT, CHARCOAL TRAY AND TOP
RING.
5. Put CHARCOAL onto the charcoal tray. (500 grams. are
appropriate amont.) When supplying charcoal, try to use
the used charcoal on
a bottom for earlier igniting.
Warning: This Roaster is designed for use with charcoal.
Do not attempt to burn any other solid fuels.
DIRECTION FOR USE
Igniting , Lighting Charcoal and Flame Adjustment
Warning
Operate the exhaust fan before igniting.
Without ventilation, the roaster will burn incompletely and
cause carbon monoxide poisoning, injury or fire.
If the table cover (table-lid) is equipped on the roaster,
remove
the cover before igniting.
Ventilation
1. Turn OFF the Burner Assist Blower Fan
Switch.
2. Press the ignition switch knob and slowly turn
it to
the “High Setting”.
Turn and Hold burner knob for a few seconds.
The roaster will make ‘tweet-tweet-tweet’ sound and be ignited.
When the roaster is ignited, the burning lamp lights in red.

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Low
Medium
High
Burning
Blower Fan
Low High
Blower Fan Switch
During the initial operation, or if the roaster has not been used
for a long time, it may take a couple of attempts to light.
If the roaster fails to ignite after a few attempts, turn the
switch back to
the “Closed Position”, wait 15 seconds and try to ignite again.
Work of the re-ignition within 15 seconds can not be done due
to a
mechanism of the safety device's working.
3. After igniting the gas, turn ON the Blower Fan
Switch.
Turn the Blower Fan Control Knob to the right to the position of
‘Medium“ (direction of 12 o’clock).
Keeping the blower fan control switch to the position of
“Medium”
and burner control valve to the position of “High”, will ease
1)
Press
2) Turn
counter-clockwise

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charcoal
to be ignited faster
4. After igniting the charcoal, turn off the burner
control valve.
Standard time is approx. 5 to 8 minutes after starting ignition of
gas.
Turn the burner control valve clockwise to the fully ‘Closed’
position.
The burning lamp (red) will go off.
5. Adjustment of Blowing Power (Heat Power of
Charcoal)
For adjusting blowing power, turn the Blower Fan Control Knob.
For the High power, turn the knob clockwise, and for the Low
power, turn
the knob counter-clockwise.
When customers are using the roasters for cooking, pay close
attention to the
condition of charcoal flame.
(When charcoal is burned out and/or the charcoal heat power comes
to be low,
put and add charcoal.)
Pay attention not to add charcoal with exceeding more than 500
grams.

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Cautions and requests
When the grilling mesh is replaced on the occasion of
customers flow, check the amount of the water in the
water tank
and add the water if necessary.
In case of incorrect water level, a warning buzzer will
sound and
the unit shut off the gas.
Grilling Mesh, Charcoal Tray, Charcoal Pot, Water Tank
are heated while using or just after using the roaster,
use the Gripper or Holder to carry them. Never touch
them.
Touching the heated parts will cause burns.
Do not shut off ventilation and exhaust fans until
the charcoal has been removed or completely
extinguished
EXTINGUISHING (after operation) 
1. Turn OFF the blower fan switch.
Check the gas control valve is turned fully to the right
“Closed” position.
2. After cooling, turn off the exhaust fan switch.
This is to cool the internal body of roaster, devices, etc.
3. Pay careful attention to handling the remaining
charcoal
and ash.
Careless or Improper handling of the remaining (charcoal) and
ash will create a fire hazard, burns or carbon monoxide poisoning.
Dispose of hot ash in accordance with local codes.
Ashes should be placed in a designated hot ash disposal
accessible.

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CLEANING &
MAINTENANCE
For the proper operation and safety, make sure to carry out
daily cleaning
of the following parts:.
1. Grilling Mesh
Wash the grilling mesh with soaking it in the neutral detergent each
time
it becomes dirty every day.
2. Top Ring, Charcoal Tray, Charcoal Pot and Water
Tank
Wash the top ring, charcoal tray, charcoal pot and water tank with
neutral detergent each time it becomes dirty every day.
Use caution when handling these parts. Rough or careless
handing will cause cracks or chips to appear in the enamel and will
allow penetrating water to cause rust.
3. Burner Set
Burner Set
(Viewing from
the backside)
Burne
r
Weight Spring
for Flame Rod
Weight
Plate
for Flame
Rod

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a) For Burner
Remove the dirt with metal brush.
As the burner is casting, never wash the burner in the water,
or it will gather rust.
In case the burner is immersed or washed in water, dry the burner
completely.
b) For Burner Head
Check the clogging of the burner ports. Remove the dirt with
metal brush.
(Clogging of the burner/burner head will cluster the flame on one
side and will cause incomplete combustion.)
In case the burner is immersed or washed in water, dry the burner
head completely.
c) For Flame Rod
Please clean regularly.
In case the flame rod is immersed or washed in water, dry it
completely.
Stuck oil, dirt or wet on around the area will cause error
(temperature failure) to detect the temperature of the Burner, and
will cause malfunction of
the safety device.
４. Filter
Soak the filter in the solution of detergent (for 2 hours) more than
once a week, wash the filter with clean water, and then dry it
completely.
※Dirty filter will restrict the ventilating capacity.
※Never use an alkaloid solution or detergent.
5. Outer Case
Wipe inside of the outer tank with soft cloth or rag regularly.
Stuck oil, dirt, cooked meats, etc. may cause a fire.
Flame Rod
Burner Head

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6. Electrode Spring (Flame Failure Safety Device)
For safety (Flame Failure Safety Device), a Flame Rod is installed
in the roaster unit. The electrode spring is a point of contact part
receiving a signal of a frame rod on a burner.
When this electrode spring is stained and dirty, it will cause error
(temperature failure) to detect the temperature of the Burner.
The Flame Rod is designed to detect incorrect flame temperature,
and will shut off the gas automatically as “FLAME FAILURE
SAFETY DEVICE”.
Therefore, always keep the area around the detector clean with
wiping regularly.The electrode spring is transformed easily and
handle it carefully.

7 F. V. Damper (Fire Volume Damper)
Wipe the damper with soft cloth (or rag) regularly.
Soiled damper with stuck oil will be an obstacle for correct
operation
of fire-protection, and will cause the fire.
In case the F. V. Damper is operated (shut), turn the holder for
temperature
fuse (thermal fuse) counter-clockwise, and remove the thermal
fuse
for changing. Set the holder for temperature fuse for recovery.
The F. V. Damper (Fire Volume Damper) is designed to shut
automatically
Electrode
Spring
Inside of “OUTER CASE”

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in case the flame tries to flow into the exhausting-pipe.
SPECIFICATION
Model No.:NJG-C (Non-Ducted Charcoal Type with a Gas
Burner)
Electrical: 220V, 1Ph, 50/60Hz.
Electric Consumption: 300 W
Water Tank Capacity: 2,500 cc
Required Exhaust Air Volume: 300 m3/h
Required Fresh Air Supply Volume: 300 m3/h
Cooing Load: 6.63 kW
Gas Consumption: City Gas 3.95 kW (3,400 kcal/h)
L.P. Gas 3.95 kW (0.28 Kg./h)
Ignition: Pilot Light Ignition
Thermal
Fuse
F.V.
Damper

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Safety Devices:
1)Automatic Gas Shut-Off (Flame Failure)Safety Device
2)Back-Fire Protection Device
3)Electric Leakage Protection Device
CHUBU COPORATION
463, MORITADA, KUWANA, MIE, 511-0943, JAPAN
PHONE: [phone]
FAX: [phone]-
How to change Thermal Fuse
This photograph shows
a normal state.
This photograph shows
the state that a thermal fuse blows out.
Thermal
Fuse
Pull out a Fuse Holder.
Fuse Holder
Thermal Fuse
Set the thermal fuse into the fuse-holder as shown
in the above photograph.
Insert the fuse-holder into the FVD.