MONTAGUE Legend 12 User manual

1
NOTICE
This manual is prepared for the use of Service Technicians
and should not be used by those not properly qualified.
This manual is not intended to be all encompassing. You
should read, in its entirety, the repair procedure you wish
to perform to determine if you have the necessary tools,
Instruments and skills requiredrequired to perform the procedure.
RETAIN THIS MANUAL FOR FUTURE REFERENCE.
The MONTAGUE Company
1830 Stearman Ave. • P.O.Box 4954 • Hayward, CA 94540-4954
Tel: [phone]
Fax: [phone]
1-888-875-2722
WWW.MONTAGUECOMPANY.COM

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THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED TO INSTALL
GAS EQUIPMENT, WHO SHOULD PERFORM THE INITIAL FIELD START-UP AND
ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS MANUAL.
POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED
IN THE EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE
OBTAINED FROM THE LOCAL GAS SUPPLIER.
WARNING
IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWN
UNITS AT MAIN SHUTOFF VALVE AND CONTACT THE
LOCAL GAS COMPANY OR GAS SUPPLIER FOR SERVICE.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER
FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF
THIS OR ANY OTHER APPLIANCE.
WARNING
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR
MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY, OR DEATH.
READ THE INSTALLATION, OPERATING, AND MAINTENANCE INSTRUCTIONS
THOROUGHLY BEFORE OPERATING THIS EQUIPMENT.
SAVE THESE INSTRUCTIONS FOR FUTURE USE.
IMPORTANT FOR YOUR SAFETY

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SHIPPING DAMAGE CLAIM PROCEDURE:
For your protection, please note that equipment in this shipment was carefully
inspected and packed by skilled personnel before leaving the factory. The
transportation company assumed full responsibility for safe delivery upon acceptance
of this shipment.
IF SHIPMENT ARRIVES DAMAGED:
1. VISIBLE LOSS OR DAMAGE—Be certain this is noted on freight bill or express
receipt, and signed by person making delivery.
2. FILE CLAIM FOR DAMAGES IMMEDIATELY—Regardless of the extent of
damage.
3. CONCEALED LOSS OR DAMAGE—If damage is unnoticed until merchandise is
unpacked, notify transportation company or carrier immediately, and file
―concealed damage‖ claim with them. This should be done within fifteen (15) days
of date that delivery was made to you. Be sure to retain container for inspection.
We cannot assume responsibility for damage incurred in transit. We will, however, be glad to furnish you with necessary
documents to support your claim.
IMPORTANT

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GENERAL
The gas fired heavy duty ranges covered in this
manual are manufactured for use with the type
of gas indicated on the nameplate.
The Montague heavy duty ranges are produced
with the best possible material and workmanship.
Proper installation is essential for safe, efficient
trouble-free operation.
MANIFOLD PRESSURE
Natural Gas: 6‖ W.C.
Propane Gas: 10‖ W.C.
PILOT ORIFICES
Natural Gas: .021
Propane Gas: .011
ORIFICES
Fixed for specified Gas type
Natural Gas:
Standard oven 136: 37
Convection Oven V136: 36
Propane Gas:
Standard Oven 136: 49
Convection Oven V136: 47
ELECTRICAL SPECIFICATIONS
VOLTAGE AMPS PH FREQ HZ CONNECTIONS
115 4.4 160 6-Feet (183 cm) 3-wire cord with plug
INTRODUCTION

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THE INSTALLATION INSTRUCTIONS CONTAINED HEREIN ARE FOR THE USE OF QUALIFIED
INSTALLATION AND SERVICE PERSONNEL ONLY. INSTALLATION OR SERVICE BY OTHER
THAN QUALIFIED PERSONNEL MAY RESULT IN DAMAGE TO THE RANGE AND/ OR INJURY
TO THE OPERATOR.
Qualified installation personnel are individuals, a firm, corporation or company which either in person
or through a representative are engaged in, and are responsible for:
A. The installation or replacement of gas piping or the connection, installation, repair or servicing of
equipment, who is experienced in such work, familiar with all precautions required, and has
complied with all requirements of state or local authorities having jurisdiction. Reference:
National Fuel Gas Code Z223.1-1984, Section 1.4.
B. The installation of electrical wiring from the electric meter, main control box or service outlet to
the electric appliance. Qualified installation personnel must be experienced in such work, be
familiar with all precautions required and have complied with all requirements of state or local
authorities having jurisdiction. Reference: National Electrical Code, ANSI/ NFPA No. 70-1984
CAREFULLY READ AND FOLLOW THESE INSTRUCTIONS
THE RANGE(S) MUST BE INSTALLED IN ACCORDANCE WITH LOCAL CODES, OR IN THE
ABSENCE OF LACAL CODES, WITH THE NATIONAL FUEL GAS CODE, ANSI.1-1984,
INCLUDING:
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 1/2 psig
(3.45 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 1/2 psig (3.45 kPa).
THE UNIT WHEN INSTALLED MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH
LOCAL CODES, OR IN ABSENCE OF LOCAL CODES, WITH THE NATIONAL ELECTRICAL
CODE, ANSI / NFPA NO. 70-1984.
INSTALLATION

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CAUTION
Provisions must be made to assure
adequate air supply to unit for proper burner
operation.
CLEARANCES
Adequate clearance must be provided in the
aisle, side and back to allow the doors to open
wide enough to remove the racks and for
service. Adequate clearance must be provided
for air clearance.
A minimum of one inch (2.54 cm) clearance
must be maintained behind the motor to provide
air circulation and motor cooling.
The following is the minimum clearance from
combustible material and noncombustible
material.
Location Combustible
Construction
Noncombustible
Construction
Back Wall 2‖ (5.88 cm) **0‖ (0 cm)
Left Side *6‖ (15.2 cm) 0‖ (0 cm)
Right Side *6‖ (15.2 cm) 0‖ (0 cm)
With 6‖ (15.2 cm) legs: Suitable for installation
on combustible floors
Without legs: for use only on noncombustible
floors.
Counter model: For installation on non combus-
tible counter only.
*15‖ (38.1 cm) when installed with 30,000 BTU/
HR burners.
**2‖ (5.88 cm) for convection ovens.
VENTILATING HOOD
The range(s) must be installed under a properly
designed ventilating hood. The hood should
extend at least 6‖ beyond all sides of the unit.
The hood should be connected to an adequate
mechanical exhaust system.
Information on construction and installation of
ventilating hoods may be obtained from the
―Standard for the Installation of Equipment for
the Removal of Smoke and Grease Laden
Vapors from Commercial Cooking Equipment‖,
NFPA No. 96-1987, latest addenda, available
from the National Fire Protection Association,
Batterymarch Park, Quincy, Ma 02269.
It is also necessary that sufficient room air
ingress be allowed to compensate for the
amount of air removed by the ventilating system.
Otherwise, a subnormal atmospheric pressure
will occur and may interfere with burner
performance or may extinguish the pilot flame.
In case of unsatisfactory oven performance,
check the exhaust fan. Make sure it is in the ON
position.
ASSEMBLY
1. Uncrate range as near to final location as
possible. Remove all shipping wire from
burners and all packing material and
accessories from oven interior.
2. Screw the adjustable feet of the legs in all
the way. Then tightly screw the complete leg
assembly into the mounting holes at each corner
of the range. If the unit is intended for curb
installation, no legs are provided. The curb must
be noncombustible material.
3. Install door handle and secure with screws
that are provided. Observe ―UP‖ marking on
handle for correct orientation.
4. If top castings are removed, identify castings
so they are replaced in the same position
and on same range as when received from
the factory.
SETTING IN PLACE
Battery Arrangement
Floor mounted Ranges:
1. Place the first range in the exact position it
will occupy in the battery.
2. Using a carpenter’s level, level range from
front to rear and side to side.

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Adjust as follows:
FLOOR
INSTALLATION
ON LEGS
Adjust by turning
Foot on adjustable leg.
CURB
INSTALLATION
ON LEGS
Place shim under the low
side. It is very important to
compensate for the variation
in floors and curbs because
unless ranges are level, they
will not butt together tightly
and it will be difficult to align
the gas ranges with the gas
supply manifold, which may
affect proper operation,
performance, and safety.
3. Remove the upper valve panel from range.
4. Move the next range into position.
5. Engage union nut on manifold with male
fitting on next range and draw up union nut
hand tight. Be sure appliances butt together,
both front and rear. If manifolds do not align,
then ranges are not level. In extreme cases,
it may be necessary to loosen manifold bolts
and adjust.
6. Continue leveling and connecting gas supply
manifolds together until all appliances in
battery are connected.
7. Tighten front manifold pipe union gas tightly.
Use back up wrench to prevent manifold
from rotating.
CAUTION
Failure to do this may result in damage to pi-
lot and gas valves.
Modular Ranges:
Assemble modular base and set in place. Adjust
feet as explained above. Connect ranges as
shown for battery arrangement.
Fry Top Ranges
Fry Top Plate Adjustment: Leveling bolts are at
the rear of the range under the fry top plate.
Adjust the leveling bolts so that the plate is
pitched to the front to provide for grease runoff as
shown in Figure 2.
High Shelves and Salamander Broilers
Lift high shelf or broiler above the range and slide
legs into position as shown in Figure 3.
Leveling Bolt
Exposed View
W/O Plate
Figure 2. Pitch of Fry Top Plate
Channel Legs
Figure3. Mounting High Shelf

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GAS APPLIANCE REGULATOR
At the time of installation, a gas appliance
pressure regulator suitable for the battery
application and adjusted for the manifold
pressure specified on the range nameplate must
be installed.
NATURAL GAS
This gas pressure regulator should be adjusted
for 6.0‖ W.C. manifold pressure. The maximum
rated inlet pressure to the regulator is 1/2 psig
(3.45 kPa).
PROPANE GAS
This gas pressure regulator should be adjusted
for 10.0‖ W.C. manifold pressure. The maximum
rated inlet pressure to the regulator is 1/2 psig
(3.45 kPa).
The oven is equipped with fixed orifices for use
with a manifold pressure of 6.0‖ W.C. for natural
gas and 10.0‖ W.C. for propane gas.
Mount the gas pressure regulator as near to the
range as possible but located outside the heat
zone to prevent damaging it. Mount horizontally
with the arrows pointing toward the manifold
Input.
The gas pressure regulator furnished by the
manufacturer complies with the following:
1. Have a maximum regulation capacity for the
total connected load.
2. Must be listed by a nationally recognized
testing agency.
3. Must have a pressure adjustment range to
allow adjustment.
Note: Unless the manifold pressure on all
connected appliances is the same, a separate
pressure regulator must be supplied for each
appliance with a different manifold pressure.
EXTERNAL GAS SHUTOFF VALVE
Codes require that a gas shutoff valve be
installed in the gas line before the range.
Adjustment
Cover
Vent
Limiter
Direction of gas flow
Figure 4. Gas Pressure Regulator

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GAS CONNECTION
NOTE: Pipe joint compound or thread sealant
that is used should be resistant to action of
liquefied petroleum gases.
Before connecting the range(s) to the gas
supply line, be sure that all new piping has been
cleaned and purged to prevent any foreign
matter from being carried into the controls by the
gas. In some cases, filters or drops are
recommended. A separate gas shut off valve
must be installed upstream from the gas
pressure regulator adjacent to the oven and
located in an accessible area.
It is important that adequately sized piping be
run directly to the point of connection at the
range with as few elbows and tees as possible.
Consult local gas company for proper piping
size and gas pressure. Each range has a 1 1/4‖
NPT manifold input located at the front of the
range for battery connection, Figure 5. A 1 1/4‖
union is located at either end of the manifold.
WARNING
CAP ALL UNUSED OPEN ENDS OF THE GAS
SUPPLY MANIFOLD.
WARNING
DO NOT USE A DOMESTIC TYPE GAS
FLEXIBLE CONNECTOR.
NOTE: If flexible or semi-flexible connectors
are used, use only AGA listed flexible
connectors with an I.D. equal to 1‖ pipe.
1 1/4‖ Male Union 1 1/4‖Female Union
Figure 5. Gas Supply Connections
Install the gas pressure regulator with gas
flowing as indicated by the arrow on the
regulator. The arrow must be pointing toward the
unit. Using pipe compound or thread sealant,
carefully thread regulator to pipe so that there is
no cross threading, etc., which could cause
leakage.
1. Apply wrench only to the flat areas around
the pipe tapping at the end being threaded to
the pipe to avoid possible regulator body
damage, which could result in leakage.
2. Connect the gas supply line from the service
gas shut off valve to the inlet side of the gas
pressure regulator using 1‖ pipe. Avoid kinks
or sharp bends that could restrict gas flow.
WARNING
TEST ALL PIPE JOINTS FOR LEAKS
BEFORE OPERATING RANGE. THIS
INCLUDES ALL GAS CONNECTIONS THAT
MAY HAVE LOOSENED DURING SHIPMENT.
USE A RICH SOAP SOLUTION (OR OTHER
ACCEPTED LEAK TESTER) AROUND ALL
PIPE CONNECTIONS AND ALL OTHER
JOINTS. DO NOT USE AN OPEN FLAME.
ABSOLUTELY NO LEAKAGE SHOULD
OCCUR, OTHERWISE, THERE IS A DANGER
OF FIRE OR EXPLOSION DEPENDING UPON
CONDITIONS. DO NOT USE UNIT IF
LEAKAGE IS DETECTED.
3. Before attempting to operate the oven, turn
gas shut off valve on and immediately check
for gas leaks. After piping has been checked
for leaks, all piping receiving gas should be
fully purged to remove air.

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ELECTRICAL CONNECTION
Unless otherwise specified, the range is
equipped with a 6 ft. flexible supply cord for 115
VAC, 60 or 50 Hertz, single phase units. The
wiring diagram is located on the back of the
range.
NOTE: THIS APPLIANCE WHEN
INSTALLED, MUST BE ELECTRICALLY
GROUNDED IN ACCORDANCE WITH LOCAL
CODES, OR IN THE ABSENCE OF LOCAL
CODES, WITH THE NATIONAL ELECTRICAL
CODE, ANSI/NFPA NO. 70-1984.
I. 115 VAC - 60 Hz - SINGLE PHASE
Ranges with this electrical rating are factory
supplied with a three wire cord and three prong
plug which fits any standard three prong
grounded receptacle. a separate 15 amp. supply
is needed for each oven.
WARNING
ELECTRICAL GROUNDING INSTRUCTIONS
THIS APPLIANCE IS EQUIPPED WITH A
THREE PRONG (GROUNDING) PLUG FOR
YOUR PROTECTION AGAINST SHOCK
HAZARD AND SHOULD BE PLUGGED
DIRECTLY INTO A PROPERLY GROUNDED
THREE PRONG RECEPTACLE. DO NOT CUT
OR REMOVE THE GROUNDING PRONG
FROM THIS PLUG.
ll. 208-240 VAC - 60 Hz - SINGLE PHASE
(2 WIRE)
Ranges with this electrical rating are factory
equipped with a terminal block. To connect
supply wires, remove cover from connection box
at right rear of range. Route supply wires and
ground wire through hole with strain relief fitting
at top of connection box. Attach supply wires to
proper terminal of terminal block. Attach ground
wire to ground lug inside connection box. See
wiring diagram for proper connection.
lll. 220 VAC - 50 Hz - SINGLE PHASE
(2 WIRE)
Follow steps outlined in ( ll. ) Refer to wiring
diagram for proper connection.