Bull 77650 Quick reference guide


MODEL#77650EXTRALARGEPIZZAOVEN,LIQUIDPROPANEGAS(LP)
WITHMODEL#77651CART
ASSEMBLY&OPERATINGINSTRUCTIONS
U.S.A. Edition

OWNER’S MANUAL
FOR USE WITH L.P. (LIQUID PETROLEUM) &
NATURAL GAS
IN CANADA, PROPANE GAS
ANSI Z21.89-2013 / CSA 1.18-2013
CONTENTS
KEEP THIS MANUAL FOR FUTURE REFERENCE.
THIS INSTRUCTION MANUAL CONTAINS IMPORATANT INFORMATION NECESSARY FOR THE
PROPER ASSEMBLY AND SAFE USE OF THE APPLIANCE. READ AND FOLLOW ALL
WARNINGS AND INSTRUCTIONS BEFORE ASSEMBLING AND USING THE APPLAINCE.
FOR ASSEMBLY INSTRUCTION, PLEASE SEE YOUR ASSEMBLY MANUAL
SAFETY……………………………………………………
2
INSTALLATION……………………………………………
2
LP GAS CYLINDER………………………………………
3
OPD EQUIPPED CYLINDER……………………………
4
HOSE & REGULATOR…………………………………..
4
LEAK TESTING…………………………………………...
5
LIGHTING………………………………………………….
6
OPERATION……………………………………………….
6
MAINTENANCE…………………………………………..
7
VENTURI TUBES…………………………………………
7
TROUBLE SHOOTING…………………………………..
8
WARRANTY……………………………………………….
9
PLEASE RECORD YOUR MODEL
NUMBER, SERIAL NUMBER AND DATE
OF PURCHASE HERE.
This information can be found on the black and silver caution sticker on the
back or side of your gas appliance.
Model Number
Serial Number
Date of Purchase
dd
/
mm
/
yyyy
!
DANGER
IF YOU SMELL
GAS:
1.
2.
3.
IF ODOR CONTINUES, KEEP AWAY FROM THE
APPLIANCE AND
IMMEDIATELY CALL YOUR GAS
SUPPLIER OR YOUR FIRE
DEPARTMENT
SHUT OFF GAS TO THE APPLIANCE
EXTINGUISH ANY OPEN FLAME
DANGER
Fax simile
FAILURE TO FOLLOW THESE INSTRUCTIONS
COULD RESULT IN FIRE OR EXPLOSION WHICH
COULD CUASE PROPERTY DAMAGE, PERSONALY
INJURY OR DEATH.
!
1. NEVER OPERATE THIS APPLIANCE
UNATTENDED.
2. NEVER OPERATE THIS APPLIANCE WITHIN 25
FT (7.5M) OF ANY FLAMMABLE LIQUID.
3. IF A FIRE SHOULD OCCUR, KEEP AWAY FROM
THE APPLIANCE AND IMMEDIATELY CALL
YOUR FIRE DEPARTMENT.
FAILURE TO FOLLOW THESE INSTRUCTIONS
COULD
RESULT IN FIRE, EXPLOSION, OR BURN
HAZARD WHICH COULD CUASE PROPERTY
DAMAGE, PERSONALY INJURY OR DEATH.

2

3
If the precautions listed on this page are not taken, a fire causing death or serious injury may occur.

4
OPD EQUIPPED CYLINDER HOSE & REGULATOR
OVERFILL PREVENTION DEVICE
1. The standard for outdoor gas appliances, ANSI Z21.58/
CAN/CGA-1.6, requires that appliances be used with
cylinders equipped with an Overfill Prevention Device (OPD).
2. The OPD is designed to reduce the potential for the overfilling
ofpropanecylinders,thusreducingthepossibility of relief valve
discharges of raw propane. The OPD causes a slower
purge/fill operation. Some consumers have been advised
by filling stations that these cylinders are “defective.” This is
not a defect. Some propane filling stations may not be aware
of this device and its effect on the purge/fill operation.
3. New OPDs coming onto the market have technology that
allows for much greater BTU outputs which will decrease the
amount of time it takes to purge a cylinder.
IDENTIFICATION
To identify these cylinders, the OPD handwheel has been
standardized to the shape shown.
1. All models are equipped with a hose and regulator with a
QCC®-1 Quick Closing Coupling.
2. The QCC® coupling contains a magnetic Flow Limiting Device
which will limit the flow of gas should there be a leak between
the regulator and the appliance valve. This device will activate if
the cylinder valve is opened while the appliance valves are open.
Be sure the appliance valves are off before the cylinder valve
is opened to
prevent accidental activation.
3. The QCC® coupling incorporates a heat sensitive hand wheel
that will cause the back-flow check module in the QCC® cylinder
valve to close when exposed to temperatures between 240°
and 300°F. Should this occur, do not attempt to reconnect the hand
wheel. Remove hose/regulator assembly and replace with a new
one.
4. The pressure regulator is set at 11 inches WC (water column)
and is for use with LP gas only. The hose and hose couplings
comply with CGA Standard CAN 1.83. No modifications or
substitutions should be attempted.
5. Protect the hose from dripping grease and keep the fuel supply
hose away from any heated surface(s), including the base
casting of the barbecue.
6. Inspect the seal in the QCC® cylinder valve when replacing the
LP gas cylinder or once per year whichever is more frequent.
Replace the seal if there is any indication of cracks, creases, or
abrasion.
7. Inspect and clean the hose before each use. If the hose is
cracked, cut, abraded or damaged in any way, the hose must be
replaced prior to the appliance being put into operation.
8. For repair or replacement of the hose/regulator assembly
(see page "component list"),
contact your appliance dealer.
9. CONNECTION
1. Be sure cylinder valve and appliance valves are “OFF.”
2. Center the nipple in the cylinder valve and hold in place. Using
other hand, turn the hand wheel clockwise until there is a
positive stop. Do not use tools. Hand tighten
only. When
making the connection, hold the regulator in a parallel with
the cylinder valve, so as not to cross thread the connection.
3. Leak test connections. See “Leak Testing.” (page 5)
4. Refer to lighting instructions. To avoid activating the Flow
Limiting Device when lighting, open cylinder valve slowly
with the appliance valves off. If the Flow Limiting Device is
accidentally activated, turn off cylinder valve and appliance
valves, wait 10 seconds to allow the device to reset, open
cylinder valve slowly, then open the appliance valve.
DISCONNECTION Always close LP cylinder valve and
remove coupling nut before moving cylinder from specified
operation position.

5
LEAK TESTING
All factory-made connections have been rigorously tested for gas
leaks. However, shipping and handling may have loosened a gas
fitting.
AS A SAFETY PRECAUTION:
• Test all fittings for leaks before using your appliance.
• Test for leaks every time you connect a gas fitting.
• Do not smoke at any time while testing.
• Never test for leaks with a lit match or open flame.
• Test for leaks outdoors.
• Test LP cylinder valve for leaks each time the cylinder is
filled.
• If a leak persists, contact your gas appliance dealer for
assistance. Do not attempt to operate appliance if a leak is
present.
LEAK TESTING ON NATURAL GAS:
TO TEST FOR LEAKS BETWEEN THE NATURAL GAS
SUPPLY AND GAS VALVE:
1. Extinguish any open flame or cigarettes in the area.
2. Be sure gas supply and
appliance valves are “OFF.”
3. Prepare a soap solution of
one-part water, one-part
liquid detergent.
4. Brush the soap solution on
each connection.
5. Slowly open the natural gas supply valve.
6. A leak is identified by a flow of bubbles from the area of
the leak.
7. If a leak is detected, close the natural gas supply valve,
tighten the connection and retest.
TO TEST FOR LEAKS BETWEEN THE ORIFICE AND GAS
VALVE:
1. Follow steps 1 - 5 above.
2. Place fingertip over the opening in the orifice.
3. Turn and hold burner control knob at “HIGH.”
4. A leak is identified by a flow of bubbles from the area of
the leak.
5. If a leak is detected, turn burner control knob to “OFF”,
tighten the connection and retest.
6. When finished, return burner control knob to “OFF”.
IF THE GAS SUPPLY SYSTEM IS PRESSURE
TESTED:
1. The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of ½ psi (3.5 kPa).
2. The appliance must be isolated from the gas supply
piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than ½
psi (3.5 kPa).
LEAK TEST WITH AN LP CYCLINDER:
TO TEST FOR LEAKS BETWEEN THE LP CYCLINDER
AND GAS VALVE:
1. Extinguish any open flame or cigarettes in the area.
2. Be sure that cylinder and appliance valves are “OFF.”
3. Connect LP gas cylinder. See “Hose and Regulator.”
4. Prepare a soap solution of one-part water, one-part
liquid detergent.
5. Brush the soap solution on each connection.
6. With a full gas cylinder, open cylinder slowly.
7. A leak is identified by a flow of bubbles from the area of
the leak.
8. If a leak is detected, close the gas cylinder “shut-off”
valve, tighten the connection and retest.
TO TEST FOR LEAKS BETWEEN THE ORIFICE AND
GAS VALVE:
1. Follow steps 1 - 6 above.
2. Place fingertip over the opening in the orifice.
3. Turn and hold burner control knob at “HIGH.”
4. A leak is identified by a flow of bubbles from the area of
the leak.
5. If a leak is detected, turn burner control knob to “OFF”,
tighten the connection and retest.
6. When finished, return burner control knob to “OFF

6
OVEN COMPONENTS PARTS LIST AND DRAWING
DWG ID
DESCRIPTION
BULL PART #
A
BURNER CONTROL KNOB
66102
B
IGNITER
66105
C
DOOR HANDLE, SILICONE
66103
D
DOOR
66106
E
OVEN HOSE & REGULATOR
66108
F
FLUE
66107
G
TEMPERATURE GAUGE
66104
WARRANTY PERIOD FOR THESE PARTS IS 1 YEAR
LIGHTING INSTRUCTIONS
1. The appliance must be assembled as per the assembly
instructions.
2. Ensure the gas supply is properly connected to the appliance. LP
installations see: “Hose and Regulator.” (page 4) NG installations
see: “Natural Gas Conversion Kit” manual.
3. Ensure there are no gas leaks in the gas supply system. See:
“Leak Testing.” (page 5)
4. Ensure that Burner ignition wires are connected.
5. WARNING: Always open door before lighting.
6. Set control knobs to “OFF” and turn on the gas supply.
LIGHTING THE BURNER:
a. Open door (D) and leave open until lit.
b. Check that the battery has been installed in the electronic
ignition (A).
c. Push and turn burner control knob (B) to “HIGH.”
d. Push and hold down the igniter button (A).
e. Burner should ignite within 5 seconds; turn off gas source
immediately if ignition does not occur in this timeframe.
CAUTION Check oven
burner flames after
lighting. All burner ports
should show a 2.5cm / 1”
flame on “HIGH.” If flames
are lazy yellow or lifting off
burner, adjust air shutter
until the flames are mostly
blue and are not lifting.
IF BURNER DOES NOT IGNITE:
Push and turn control knob to “OFF.” Wait 5 minutes then try
again with control knob set at “MEDIUM.”
•If any burner will not light, see page 8 “Troubleshooting”
•If problem persists, do not attempt to operate the
appliance; contact your dealer or an approved service
center.
OPERATION
WARNING: The use of Prescription drugs may impair the
consumer’s ability to properly assemble or safely
operate the appliance.
TIPPING HAZARD: Place the gas cylinder in the appropriate hole
to avoid overturns and accidents
First Time Use: Before cooking with your gas appliance for
the first time, burn it off (see page 7) to rid it of any odors
or foreign matter in the following manner:
Preheating: Preheat the appliance on MEDIUM/HIGH with
the door closed for ten minutes. Reduce heat as appropriate
for your application.
Door Position: The position of the door during operation is a
matter of personal preference, but the appliance cooks faster,
uses less fuel, and controls the temperature best with the
door closed. A closed door also imparts a smokier flavor and
is essential for smoking and convection cooking.
Shutdown:
1. Turn off cylinder valve/main gas supply.
2. Turn control knobs to “OFF.”

7
REGULAR MAINTENANCE
The following components should be inspected and cleaned (as necessary) before every usage of your gas appliance to ensure
optimal performance, safety andefficiency.
GENERAL CLEANING / Perform a Burn-Off (see below). When appliance is cool, clean the interior of the appliance (if necessary)
by scraping the bottom of the cooking plane and vacuuming.
BURN-OFF / Ignite the burners as per “Lighting” (page 6). Operate gas appliance on HIGH with door closed for 10 min. or until
smoking stops. Turn the gas source off then turn control knobs to OFF
ANNUAL MAINTENANCE
The following components should be inspected and cleaned at least once a year or after any period of storage over 30 days to ensure optimal
performance, safety and efficiency.
BURNER / Remove burner and inspect for cracks and deterioration. Clean venturi tubes using a pipe cleaner to eliminate any blockages. See
“Venturi Tubes.” While the burner is removed, clean the interior of appliance by scraping the bottom of the cooking plane and vacuuming.
HOSE / Inspect and replace if necessary. For propane see “Hose and Regulator.” (Page 4)
ORIFICE / Inspect the orifice to make sure it is not blocked, misaligned, or loose.
STAINLESS STEEL ORIFICE
Wash with soap and water. Use stainless steel cleaner to polish and remove stains or marks.
Extreme heat can cause the stainless-steel door to turn color. This is discoloration is not considered
a manufacturing defect.
REPLACEMENT PARTS
If a problem is found with the regulator, hose, burner, or control valves, do not attempt repair. See your dealer,
approved service center, or contact the factory for repairs or replacement parts. To ensure optimum performance, use
only original replacement parts.
LEAK TEST
When reconnecting that appliance to a gas supply, be sure to check for leaks. See “Leak Testing.” (Page 5)
VENTURI TUBES
Always keep venturi tubes clean. Blockages in the venturi tubes caused by spiders, insects and nests can cause a flashback fire.
In fact, although the gas grill may still light, the backed-up gas can ignite and cause a fire around the venturi tubes at the control panel or the
side burner.
If a flashback fire occurs, turn off gas at the source immediately. Inspect and clean the venturi tubes if any of the following
symptoms occur:
1. You smell gas.
2. Your appliance does not reach temperature.
3. Your appliance heats unevenly.
4. The burners make popping noises.
INSPECTING & CLEANING VENTURI TUBES
1. Turn off gas by closing the propane cylinder valve.
2. When appliance is cool, clean the venturi tubes with a pipe cleaner.
3. Turn off gas by the propane cylinder valve.

TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
SMELL OF GAS
SHUT OFF GAS SUPPLY VALVE AT ONCE.
DO NOT USE THE APPLIANCE UNTIL LEAK ISSEALED.
Leak detected at
cylinder,
regulator or
other connection.
1. Regulator fitting loose.
2. Gas leak in hose/regulator or control valves.
1. Tighten fitting and “Leak Test.” (page 5)
2. See authorized service center.
Flames Beneath Control
Panel (Flashback Fire)
1. Venturi blocked. 1. Remove burner and clean venturi. See “Venturi Tubes” (page 7)
for assistance.
Flickering Burner
Flame or
Low Temperatures on
HIGH Setting
1. Excess flow safety device has been
activated in
connection between cylinder and
barbecue.
2. Improper air shutter adjustment
1. Turn LP cylinder valve off then turn all burners to OFF
position. Disconnect the regulator from the cylinder. Wait two
minutes. Re-attach regulator to the cylinder. Open the cylinder
valve slowly. Wait one minute. Light smoker oven as per
“Lighting” (page 6)
Burner Not Lighting
1. Out of LP Gas/Gas Supply Valve Off.
2. Igniter issue.
3. Excess flow safety device has been activated.
4. Regulator is not fully connected to the cylinder
valve.
5. A leak in the system causing the excess flow
device to activate.
6. Venturi blocked or misaligned with valve orifice.
7. Orifice blocked.
8. Hose is twisted.
9. Improper air shutter adjustment.
1. Refill LP Gas Cylinder/turn on main gas supply valve.
2. It is an igniter issue. See “Igniter Not Working” below
3. Follow “Flickering Flame or Low Temperatures on HIGH setting”
solution above.
4. Tighten the regulator hand wheel.
5. Leak test connections to determine loose fitting. Tighten fitting.
Leak test system.
6. Clean venturi See page 5 for assistance.
7. Clean orifice with a pin or fine wire. Do not drill orifices.
8. Straighten hose.
9. Adjust air shutter.
Igniter Not Working
1. Igniter battery is dead
2. Igniter wire(s) not connected
3. Electrode misaligned on burner
4. Igniter malfunction
1. Replace battery
2. Ensure main burner and side burner electrode wires are all
connected
3. Realign electrode and clear any surrounding debris from area
4. Contact dealer for replacement igniter.
Decreasing Heat,
“Popping
Sound”
1. Out of LP Gas.
2. Venturi blocked.
1. Refill LP Gas Cylinder.
2. Remove burner and clean venturi. See “Venturi Tubes” (page 7) for
assistance.
Hot spots on Cooking Surface
1. Venturi blocked
2. Burner ports partially blocked by debris
3. Improper air shutter adjustment
1. Remove burner, clean venturi. See “Venturi Tubes” (page 7) for
assistance.
2. Remove burner & clean with soft bristle brush (e.g. toothbrush).
3. Adjust air shutter.
Regulator Humming Noise 1. Cylinder valve opened too quickly. 1. Open cylinder valve slowly.
Yellow Flame
1. Some yellow flame is normal. If it is excessive,
the venturi may be blocked.
2. Burner ports partially blocked by debris.
1. Clean venturi. See “Venturi Tubes” (page
7) for assistance.
2. Remove burner & clean with soft bristle brush (e.g.
toothbrush).
If troubleshooting fails to solve any of these or any other issues, please contact your dealer or approved service center.
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Bull Outdoor Products continues to be the industry’s leader in Warranty Durations with our product line. Warranty
Durations can be located in the Parts Section of each manual. Components such as doors, drawers, and non-mechanical
items are covered under a one year warranty from the date of purchase on invoice or purchase order.
Warranty Claims must be filed on line through the Bullbbq.com Website. Warranty Claims will not be accepted via email,
fax, or phone.
Bull Outdoor Products, Inc. warrants to the original purchaser at the original site of delivery with proof of purchase of each
Outdoor Gas Grill that when subject to normal residential use, it is free from defects in workmanship and materials for the
periods specified below. This warranty excludes grills used in rental or commercial applications. It does not apply to rust,
corrosion, oxidation, or discoloration, which may occur due to moisture, overheating, or packaging, unless the affected
product becomes inoperable. Warranty Claims do not include shipping charges of item(s), labor or any labor related
charges. There will be a shipping and handling charge for the delivery of the warranty part(s).
Our obligation under this warranty is limited to repair or replacement, at our option, of the product during the warranty
period. The extent of any liability of Bull Outdoor Products, Inc., under this warranty is limited to repair or replacement. This
warranty does not cover normal wear of parts, damage resulting from any of the following: negligent use or misuse of the
product, use on improper fuel/gas supply, use contrary to operating instructions, or alteration by any person other than our
factory service center. The warranty period is not extended by such repair or replacement. Product repair as provided
under this warranty is your exclusive remedy. Bull Outdoor Products, Inc. shall not be liable for any incidental or
consequential damages for breach of any express or implied warranty on its products.
Product repair as provided under this warranty is your exclusive remedy. Bull Outdoor Products, Inc. shall not be liable for
any incidental or consequential damages for breach of any express or implied warranty on its products. Except to the
extent prohibited by applicable law, any implied warranty or merchantability or fitness for a particular purpose on this
product to the duration of the above warranty. Some states do not allow the exclusion or limitation of incidental or
consequential damages, or allow limitations on how long an implied warranty lasts, so the above limitations or exclusions
may not apply to you. This warranty gives you specific legal rights, and you may have other rights, which vary from state to
state.
Based on country or geographical area, the following methods are used to file a Warranty Claim:
https://www.bullbbq.com/support-warranty
United States of America / Canada / Central America / South America
https://www.bullbbq.eu/en/warrantyform.htm
Belgium / Denmark / France / Germany / Italy / Latvia
Malta / Netherlands / Norway / Portugal / Romania / Spain
Sweden / Switzerland / United Kingdom
Mail= Exim International PTY LTD PO Box 70 Helensvale, Queensland 4212 Australia
Australia
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