Wolf ML-126625, ML-126624, ML-126621, ML-126622, ML-126620 User Manual
...
OWNER’S MANUAL
INSTALLATION & OPERATION
WKG SERIES
GAS
CONVECTION OVENS
MODELS
WKG ML-126620
WKGD ML-126621
WKGC ML-126622
WKGX ML-126623
WKGDX ML-126624
WKGCX ML-126625
THE WOLF RANGE COMPANY LLC
19600 S. Alameda St., Compton, California 90221-6291
(310) 637-3737 • FAX (310) 637-7931 • (800) 366-WOLF
FORM 31133 Rev. A (Aug. 2000)
P. O. Box 7050, Compton, California 90240-7050
®
IMPORTANT FOR YOUR SAFETY
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.
IMPORTANT
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 INSTALLING
OR SERVICING THIS EQUIPMENT.
IN THE EVENT OF A POWER FAILURE, DO NOT ATTEMPT
TO OPERATE THIS DEVICE.
© THE WOLF RANGE COMPANY LLC, 1999
– 2 –
TABLE OF CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation Codes and Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installing Basic Oven . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Ovens Mounted on Casters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Assembling the Legs to the Oven . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Assembling the Stand to the Oven . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Assembling Stacked Ovens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Manual Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Gas Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Testing the Gas Supply System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Air Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Vent System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Controls (Models WKG, WKGX, WKGD, WKGDX Without Roast & Hold) . . . . 9
Controls (Models WKG, WKGX, WKGD, WKGDX With Roast & Hold) . . . . . . 10
Before First Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Lighting the WKG Series Ovens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Using the WKG Series Ovens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Conserving Energy — All Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Programmable Controls (Models WKGC, WKGCX) . . . . . . . . . . . . . . . . . . . . . 13
Manually Setting the Temperature and Cook Time . . . . . . . . . . . . . . . . . . . . . . 14
To Program Menu Item and Rack # Cook Times. . . . . . . . . . . . . . . . . . . . . . . . 14
Setting the Oven for Roast & Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Roast and Hold Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Proper Utensils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Operating Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Rack Arrangements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Special Procedures for Baking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
High Limit Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Recommended Temperatures and Times for Roasting. . . . . . . . . . . . . . . . . . . 18
Cooking Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Suggested Cooking Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Guidelines for Maintaining Stainless Steel Surfaces. . . . . . . . . . . . . . . . . . . . . 21
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Vent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Replacing Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Service and Parts Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
IMPORTANT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
– 3 –
Installation, Operation, and Care of
WKG SERIES
GAS CONVECTION OVENS
KEEP THIS MANUAL FOR FUTURE REFERENCE
GENERAL
Models WKG and WKGX are equipped with a mechanical KX thermostat. Models WKGD and WKGDX
feature a solid state temperature control. Models WKGC and WKGCX feature programmable controls.
One hour dial timer and buzzer and two-speed
Porcelain interior is standard on all models; stainless steel interior is optional. The burner input rating
for each oven is 44,000 BTU/hr. Models WKGX, WKGDX and WKGCX have a 4"
cavity. Wolf Range offers a stacking kit for mounting one oven on top of another as an option. Oven
doors open independently (standard); simultaneous door opening is optional. All ovens are furnished
with 5 racks.
The standard 120 Volts, 60 Hertz, 1 Phase ovens include cord and plug. Optional electrical
specifications require hard wire connection. Other available options include: Five-hour timer, 208 / 240
volt electrical service, additional oven racks, an open stand with lower storage rack, and roast and hold.
Wolf Range Gas Convection Ovens are produced with quality workmanship and material. Proper
installation, usage and maintenance of your oven will result in many years of satisfactory performance.
1
/2 HP (0.37 kw) blower motor are standard equipment.
(10 cm) deeper oven
It is suggested that you thoroughly read this entire manual and carefully follow all of the instructions
provided.
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INSTALLATION
Before installing, verify that the electrical service and type of gas supply (natural or L. P. gases) agree
with the specifications on the rating plate located behind the top trim panel on the front of the oven. If
the supply and equipment requirements do not agree, do not proceed with the installation. Contact your
dealer or Wolf Range Company immediately.
UNPACKING
Immediately after unpacking, check for possible shipping damage. If the oven is found to be damaged,
save the packaging material and contact the carrier within 15 days of delivery.
Carefully unpack the oven and place in a work-accessible near to its final installed position.
Do not use the doors or their handles to lift the oven.
– 4 –
LOCATION
The equipment area must be kept free and clear of combustible substances.
When installed, minimum clearance from combustible construction must be 1"
(10 cm) at the right side, and 6" (15 cm) at the rear. Minimum clearance from non-combustible
4"
construction must be 0"
(0 cm) at the left side, 4" (10 cm) at the right side, and 6" (15 cm) at the rear. The
(2.5 cm) at the left side,
oven may be installed on combustible floors.
The installation location must allow adequate clearances for servicing and proper operation.
The oven must be installed so that the flow of combustion and ventilation air will not be obstructed.
Adequate clearance for air openings into the combustion chamber must be provided. Make sure there
is an adequate supply of air in the room to allow for combustion of gas at the oven burners.
Do not permit fans to blow directly at the oven. Wherever possible, avoid open windows next to the
oven. Avoid wall-type fans which create air cross currents within the room.
INSTALLATION CODES AND STANDARDS
In the United States, Wolf ovens must be installed in accordance with: 1) State and local codes;
2) National Fuel Gas Code, ANSI-Z223.1 (latest edition), available from American Gas Association,
1515 Wilson Boulevard, Arlington, VA 22209; 3)
NFPA-96,
Vapor Removal from Cooking Equipment
(latest edition) available from National Fire Protection Association, Batterymarch Park, Quincy,
MA 02269; and 4) National Electrical Code, NFPA-70 (latest edition).
In Canada, Wolf ovens must be installed in accordance with: 1) Local codes; 2) CAN/CGA-B149.1,
Natural Gas Installation Code
(latest edition) or CAN/CGA-B149.2,
Propane Installation Code
(latest
edition), available from Canadian Standards Association,178 Rexdale Boulevard, Etobicoke, Ontario,
Canada M9W1R3; and 3) Canadian Electrical Code, CSA Standard C22.2 No.3,
of Fuel Burning Equipment
(latest edition).
Electrical Features
,
INSTALLING BASIC OVEN
The basic oven must be installed on legs or be mounted on a modular stand. Installations on concrete
bases or other supports restricting air circulation underneath the oven is not advisable and may void
the warranty.
Ovens Mounted on Casters
If the oven is to be installed on casters, you must use a flexible
connector (not supplied ) that complies with the Standard for
Connectors for Movable Gas Appliances, ANSI-Z21.69 (latest
edition) and CAN/CGA 6.16 (latest edition), and a quick-disconnect
device that complies with the Standard for Quick-Disconnect
Devices for Use With Gas Fuel, ANSI-Z21.41 (latest edition) and
CAN1-6.9 (latest edition). Provide a restraining device for the gas
line to limit movement of the oven without depending on the
connector and/or any quick-disconnect device or its associated
CONNECT
GAS LINE
STRAIN RELIEF
HERE
PL-53563
piping to limit oven movement. Remove two screws from the rear
of the oven and install the tie down strap shipped with the casters
Fig. 1
using these screws (Fig. 1). Attach the gas line strain relief to the
tie down strap at the rear of the oven (Fig. 1).
If disconnection of the restraint is necessary, turn off the gas supply before disconnection. Reconnect
this restraint prior to turning the gas supply on and returning the oven to its installation position.
Separate instructions for installing casters to the oven are included with the casters.
– 5 –
Assembling the Legs to the Oven
STACKING FLUE
PL-53564
The legs must be installed on the bottom of the oven. Gently position the
oven on its side, taking care not to scratch or damage it.
Attach each of the four leg assemblies to the bottom of the oven with the
24 bolts and lockwashers (6 per leg). Carefully raise the oven to its normal
position.
BACK
ASSEMBLING THE STAND TO THE OVEN
Attach each of the four leg assemblies to the bottom of the oven with the
24 bolts and lockwashers (6 per leg). Carefully raise the oven to its normal
position. Attach the undershelf to the legs with 8 bolts and lockwashers (2
per leg).
Install the rack guides into the shelf at desired locations (for pan or flat
rack), then attach the rack supports to the top end of the rack guides. Attach
rack supports to the leg assembly by removing one middle bolt and
reattaching back through the end holes in the rack support (Fig. 2).
ASSEMBLING STACKED OVENS (OPTIONAL)
Unpack the ovens and stack kit. Position the oven to be
used as the bottom oven on its back for access to the
oven bottom, taking care not to scratch or damage it. The
gas pipe protrudes beyond the back; provide for this
when the oven is tipped back by resting it on suitable
spacers (2 x 4's, etc.). Attach the four leg assemblies with
the 24 bolts and lockwashers (6 per leg).
Place the lower oven (with legs) on the floor and remove
7
two
⁄16" (1.1 cm) diameter knockouts on each side of the
top cover. Remove vent guard and discard it.
FRONT
PL-53274
Fig. 2
Move the oven with legs to the installed position and
place upper oven on top of lower oven using the locating
studs.
Install the stacking flue (Fig. 3) with the four screws
provided.
Connect the piping between the top oven and bottom
oven. For all gas supply connections, pipe joint compound
must be resistant to the action of propane gases.
LEVELING
Fig. 3
Make sure that the oven racks are level in the final installed position. If the oven is installed on legs,
turn the adjustable feet in or out to level the oven front-to-back and side-to-side. If the oven is installed
on casters, loosen set screws and turn casters in or out to level the oven front-to-back and side-to-side.
Retighten set screws after leveling.
MANUAL GAS VALVE (ALL MODELS)
The manual gas valve, located behind the small door in the lower front panel, should remain off until
all electrical and gas connections are made and the ovens are ready to be used.
– 6 –
GAS CONNECTION
GAS DATA
INPUT RATING MANIFOLD PRESSURE
MODEL
WKG
WKGD
WKGC
WKGX
WKGDX
WKGCX
Natural
44,000 BTU/hr 44,000 BTU/hr
L. P. Gases
(Propane)
Natural
3.5" W.C.
(0.87 kPa)
L. P. Gases
(Propane)
10" W.C.
(2.49 kPa)
Gas supply connections and any pipe joint compound must be resistant to the action of propane gases.
Location of the gas inlet is at the rear of the oven. Codes require that a gas shutoff valve must be
installed in the gas line ahead of the oven.
Connect gas supply after leveling the oven. The gas supply line must be at least the equivalent of
3
⁄4" (1.9 cm) iron pipe. Make sure the pipes are clean and free of obstructions, dirt, or pipe joint compound.
The ovens are equipped with fixed burner orifices which coincide with installation elevation.
The oven is provided with a regulator integral to the gas solenoid valve and requires no external
regulator.
Natural gas pressure regulators are preset for 3.5" W.C. (Water Column)
pressure regulators are preset for 10" W.C.
(2.5 kPa).
(0.9 kPa); propane gas
WARNING: PRIOR TO LIGHTING, CHECK ALL JOINTS IN THE GAS SUPPLY LINE FOR LEAKS.
USE SOAP AND WATER SOLUTION. DO NOT USE AN OPEN FLAME.
After piping has been checked for leaks, all piping receiving gas should be fully purged to remove air.
TESTING THE GAS SUPPLY SYSTEM
When gas supply pressure exceeds
1
⁄2 psig (3.45 kPa), the oven and its individual shutoff valve must be
disconnected from the gas supply piping system.
When gas supply pressure is
1
⁄2 psig (3.45 kPa) or less, the oven should be isolated from the gas supply
system by closing its individual manual shutoff valve.
AIR ADJUSTMENT
Although main burner air is adjusted before shipment, it should be checked at the time of installation.
Excessive air will cause flames to lift off a burner when cold or may cause flash-back during normal
cycling of oven, particularly when propane gas is used.
Insufficient air will cause flames to burn with a yellow tip and result in carbon accumulation in the flame
chamber and heat exchanger tubes.
Contact your local Wolf Range servicer if required.
– 7 –
VENT SYSTEM
DO NOT obstruct the flow of flue gases from the flue located on the rear of the oven. It is recommended
that the flue gases be ventilated to the outside of the building through a ventilation system installed by
qualified personnel.
Ovens may use an optional down draft diverter flue method. This optional down draft diverter must be
purchased from the oven manufacturer and vented to the outside; otherwise, the installation of any
such device will void all oven certifications and warranties. When the diverter is supplied, it may be
connected to a Type “B” vent.
From the termination of the flue to the filters of the hood venting system, a minimum clearance of
(45 cm) must be maintained.
18"
Information on the construction and installation of ventilating hoods may be obtained from
Removal from Cooking Equipment
, NFPA Standard No. 96 (latest edition), available from the National
Vapor
Fire Protection Association, Batterymarch Park, Quincy, MA 02269.
ELECTRICAL CONNECTIONS
WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE
APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND/OR OTHER LOCAL
ELECTRICAL CODES.
WARNING: DISCONNECT THE ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE
DISCONNECT SWITCH TO INDICATE THAT YOU ARE WORKING ON THE CIRCUIT.
WARNING: APPLIANCES EQUIPPED WITH FLEXIBLE ELECTRICAL POWER SUPPLY CORD ARE
PROVIDED WITH A THREE-PRONG GROUNDING PLUG. THIS PLUG MUST BE CONNECTED
INTO A PROPERLY GROUNDED THREE-PRONG RECEPTACLE. IF THE RECEPTACLE IS NOT
THE PROPER GROUNDING TYPE, CONTACT AN ELECTRICIAN. DO NOT REMOVE THE
GROUNDING PRONG FROM THE PLUG.
WKG series ovens with120 Volt / 60 Hertz / 1 Phase electrical specification are equipped with a cord
and plug as standard equipment.
A wiring diagram is located on the inside of the control housing.
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