Vulcan Hart Oven VB 21 ML 052312 User Manual

INSTALLATION &  
OPERATION MANUAL  
HEAVY DUTY ELECTRIC BROILER SERIES  
MODELS  
VB 21  
VB 21C  
VB 25  
ML-052312  
ML-052312  
ML-052313  
ML-052249  
ML-052315  
ML-052315  
ML-052316  
ML-052314  
ML-052314  
VB 73  
VB 221  
VB 221C  
VB 225  
VTMB 221  
VTMB 221C  
VTMB22  
VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. (502) 778-2791  
FORM 31065 (5-98)  
 
Installation, Operation and Care of  
MODELS VTMB22, VTMB2, VB2S & VB21  
HEAVY DUTY ELECTRIC BROILERS  
KEEP THESE INSTRUCTIONS FOR FUTURE USE  
GENERAL  
Your Vulcan-Hart Heavy Duty Electric Broiler is produced with quality workmanship and material.  
Proper installation, usage and maintenance of your broiler will result in many years of satisfactory  
performance.  
Vulcan-Hart Company suggests that you thoroughly read this entire manual and carefully follow all of  
the instructions provided.  
Model VB Ovens are provided with one rack as standard equipment.  
MODEL  
VB 21  
DESCRIPTION  
Single section broiler with standard oven below  
Single section broiler with storage space below  
Double section broilers with storage space below  
Modular single section broiler  
VB 25  
VB 225  
VTMB 2  
VTMB 22 Modular double section broiler  
VB 73  
Backshelf broiler for mounting over a 3-ft. (91 cm) range  
VB 21C  
VB 221  
VB 221C  
Single section broiler with convection oven below  
Double section broiler with standard oven below  
Double section broilers with convection oven below  
– 3 –  
 
INSTALLATION  
UNPACKING  
Immediately after unpacking, check for possible shipping damage. If the broiler is found to be  
damaged, save the packaging material and contact the carrier within 15 days of delivery.  
Remove all shipping wire, wood blocking, and accessories.  
Before installing, verify that the electrical service agrees with the specifications on the rating plate  
located as follows: VTMB units - on the control panel front; VB21 - behind the oven door on the breaker  
box cover; and VB2S - behind the door panel of the storage cabinet base. If the supply and equipment  
requirements do not agree, contact your dealer or Vulcan-Hart immediately.  
INSTALLATION CODES AND STANDARDS  
Your Vulcan broiler must be installed in accordance with:  
1.  
2.  
State and local codes, or in the absence of local codes, with:  
National Electrical Code ANSI/NFPA-70 (latest edition).  
LOCATION  
Position the broiler in its installation position. The area around the broiler should be kept free and clear  
of all combustible materials.  
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.  
Bring conduit containing the proper supply wire (size and type in accordance with latest edition of the  
National Electrical Code ANSI/NFPA-70) to the broiler. Use wire suitable for 167°F ( 75°C) on broilers  
carrying more than 80 amps. On Models VB2S, VB22S, VB21 and VB221, the conduit enters into the  
broiler through the 2" (51mm) hole located in the bottom of the broiler. On Models VTMB2 and  
VTMB22, the conduit enters through the clearance hole provided in the back and is terminated on the  
vertical panel behind the terminal block.  
Connect the supply leads to the terminal block and the green grounding lead to the labeled ground lug.  
Broilers designed for 220/380 or 240/415 volts require voltage supplies with grounded neutral  
(3 phase, 4 wire; or 1-phase, 3-wire).  
– 4 –  
 
Broilers wired for 3-phase service may be changed to 1-phase (or vice versa) by simply relocating two  
of the four broiler leads on the terminal block as shown in the wiring diagram. (1-phase not available  
on 480 volt models.)  
All required broiler wiring diagrams are packaged separately in a clear plastic ziplock bag and shipped  
with the broiler.  
ELECTRICAL DATA CHART  
STANDARD VOLTAGES - 208 VOLTS OR 240 VOLTS 60 Hz 1 PHASE - 480 VOLTS 60 Hz 3 PHASE ONLY  
3-PHASE  
LOADING  
KW PER PHASE 208V 240V  
NOMINAL AMPS PER LINE  
3-PHASE  
TOTAL  
KW  
CON.  
1-PHASE  
VOLTS  
60 Hz  
208V  
Y
240V  
Y
480V  
Y
MODEL DESCRIPTION  
X-Y Y-Z  
X-Z  
3
6.7  
6
X
Z
X
Z
X
Z
VB2S Broiler w/Storage Base 208-240-480 12.0  
VB21 Broiler w/Oven 208-240-480 18.7  
VB22S Dbl.Broiler w/Storage 208-240-480 24.0  
VB221 Dbl.Broiler w/Oven 208-240-480 30.7  
3
6
58  
90  
50  
78  
25 37 37 22 32 32 16 11 16  
53 50 53 45 43 45 23 21.5 23  
62 74 62 54 65 54 32 27 27  
86 91 78 74 79 67 40 37 34  
6
6
9
9
115  
148  
100  
128  
12  
10  
8.7  
STANDARD VOLTAGES - 208 VOLTS OR 240 VOLTS 60 Hz 1 PHASE OR 3 PHASE - 480 VOLTS 60 Hz 3 PHASE ONLY  
3-PHASE  
LOADING  
KW PER PHASE 208V 240V  
NOMINAL AMPS PER LINE  
3-PHASE  
TOTAL  
KW  
CON.  
12.0  
12.0  
24.0  
1-PHASE  
VOLTS  
60 Hz  
480  
208-240  
480  
208V  
Y
240V  
Y
480V  
Y
MODEL DESCRIPTION  
VTMB2 Single Broiler  
VTMB2 Single Broiler  
VTMB22 Double Broiler  
VTMB22 Double Broiler  
X-Y Y-Z  
X-Z  
6
3
9
6
X
Z
X
Z
X
Z
3
3
9
9
3
6
6
9
58  
50  
16 11 16  
25 37 37 22 32 32  
32 27 27  
208-240  
24.0  
115  
100  
62 74 62 54 65 54  
BROILERS WITH CONVECTION OVENS  
”N/A” BROILERS NOT AVAILABLE IN 480V 1 PHASE  
NOMINAL AMPS PER LINE WIRE  
3-PHASE LOAD 3-PHASE LOAD  
KW PER PHASE KW PER PHASE  
3 PHASE  
1 PHASE  
TOTAL  
KW  
208 & 240V  
480V  
208V  
Y
240V  
Y
480V  
Y
208V 240V 480V  
XYZ XYZ XYZ  
MODEL  
VB21C  
CONN.  
X-Y Y-Z X-Z X-Y Y-Z X-Z  
X
Z
X
Z
X
Z
19.0  
31.0  
4.2 7.2 7.6 7.2 7.2 4.6 65  
10.2 10.2 10.6 7.2 13.2 10.6 87  
53  
54  
87  
43  
75  
41  
53  
75  
21  
26  
21  
91  
79  
40  
VB221C  
85  
74  
32 337 43 149 129 N/A  
– 5 –  
 
ELECTRICAL TESTS  
Turn each switch from LOW through HIGH and verify that it controls the heating elements correctly.  
Free Standing Models - 208V & 240V  
Left switch controls front element, LOW-HIGH  
Right switch controls rear element, LOW-HIGH  
Free Standing Models - 480V  
Left switch controls two front elements  
Right switch controls two rear elements:  
LOW = 2 elements on LOW  
MED = 1 element on HIGH and 1 element OFF  
HIGH = 2 elements on HIGH  
Model VB73 - 208V & 240V  
Top switch controls left element, LOW-HIGH  
Bottom switch controls right element, LOW-HIGH  
Model VB73 - 480V  
One switch controls 2 elements:  
LOW = left and right elements on LOW  
MED = left element OFF, right element on HIGH  
HIGH = left and right elements on HIGH  
LEVELING  
Using a carpenter's level placed on top of the broiler, adjust the feet of the broiler so that the broiler  
is level front-to-back and side-to-side.  
– 6 –  
 
OPERATION  
WARNING: THE BROILER AND ITS PARTS ARE HOT. BE CAREFUL WHEN OPERATING,  
CLEANING OR SERVICING THE BROILER.  
CONTROLS  
Broiler  
Infinite Load Switches  
— Twoswitchesindependentlycontrolthefrontandrearheatingelements  
in 208 and 240 volt models. The switch located on the left-hand side  
of the switch panel controls the percent on-time of the two front  
elements, and the switch located on the right-hand side of the switch  
panel controls the two rear elements. The percent on-time of the  
infinite load control varies from approximately 10% in the VERY LOW  
position to 100% in the HIGH position.  
3-Heat, 4-Position Switch  
On 480 volt models, each of the two non-cycling 3-heat, 4-position  
switches control independently the front and rear sections of the  
broiler. Input varies from full power at the HIGH position (both  
elements connected in parallel) to MED position (one element only  
on) to LO position (both elements connected in series).  
Grid Handle  
— The distance of the grid surface from the elements is controlled by the  
pull-and-release grid handle at the right of the broiler. This grid handle  
locks in 13 positions over the 6" (152 mm) grid travel.  
The operator can, by independent setting of each switch, provide a wide range of broiler temperatures  
depending on the type and location of the broiling product.  
Oven  
3-Heat Switches  
— Two switches (located on the right side of the switch panel, on each  
side of the thermostat) independently control the top and bottom  
heating elements. At HIGH position, the maximum element power  
is utilized (elements connected in parallel); at MED position, only one  
1
of the two elements is on (about /2 power); at LO position, the two  
1
elements are connected in series (about /4 power); at the OFF  
position, both elements are completely turned off.  
Thermostat  
— Controls the temperature of the oven from 175°F to 550°F (79°C to  
288°C).  
Indicator Light  
— (Mounted next to the thermostat.) When lit, the thermostat is calling  
for heat, and when off, indicates the desired temperature is  
reached.  
– 7 –  
 
When the thermostat is turned on, it provides power to the two 3-heat switches, which in turn, according  
to their setting, independently turn the top and bottom heating elements on and off. Thus, while the  
thermostat controls and maintains the oven temperature around the desired set temperature, the  
3-heat switches control the rate of temperature build-up.  
BEFORE FIRST USE  
Before using for the first time, clean the broiler or oven with detergent and water. Rinse thoroughly and  
wipe dry with a soft clean cloth.  
Seasoning (Oven Models Only)  
Lightly, but thoroughly, coat the oven steel deck with cooking oil and allow it to season in the oven at  
450°F (232°C) for 30 minutes to 1 hour. This seasoning will lessen sticking of spillage and inhibit rust.  
USING THE BROILER  
Preheating  
At full input, the elements will heat to broiling radiance in approximately 5 minutes. The broiler will  
saturate for full loading in 10 to 15 minutes at full input.  
Grid  
The grid is the V bar type, which permits easy scraping with a steak turner during operation. Drippings  
from the broiling food go through the grid onto the drip shield and into the grease collector.  
Grease Collector  
The grease collector collects grease and waste which is diverted by the tilt of the drip shield. DO NOT  
allow the grease collector to overflow. The grease collector should be emptied when three-quarters  
full to reduce the possibility of spillage.  
USING THE OVEN  
Preheating  
Set top and bottom 3-heat switches to HIGH. Set thermostat to desired baking temperature. The  
indicator light will light and remain lit until the oven reaches temperature. The oven may be loaded  
when the indicator light goes off the first time; however, it is desirable to allow the indicator light to go  
on and off at least twice so the oven is thoroughly heated and will brown baked products evenly. After  
the first cycle (oven indicator light on and off), set the 3-heat switches as desired for baking. (Refer  
to TIME, TEMPERATURE & SWITCH SETTING CHART FOR BAKING.)  
– 8 –  
 
While it is recommended that you set the 3-heat switches to the HIGH position in order to preheat the  
oven to the desired temperature, it is necessary for some baking products to turn the 3-heat switch  
controlling the top elements to the MED or LO position in order to reduce the amount of radiant heat  
applied to the particular product. This will eliminate burning of the top portion of the product.  
Loading  
Load the oven as rapidly as possible to prevent excessive heat loss. Place pans directly on the deck  
and in rows back to front, beginning on the right, then the next row, etc., until oven deck is full. Do not  
place pans closer to the door than 3" (76 mm). Do not let the pans touch the sides or back of the oven  
or each other.  
Baking  
Approximate cooking times are given in recipe directions or are shown on the TIME, TEMPERATURE  
& SWITCH SETTING CHART FOR BAKING shown below. When baking on the rack, it may be  
necessary to set the bottom switch at HIGH.  
Meat Roasting  
Meat roasting is best performed in a balanced oven. Switch positions of HIGH and HIGH are  
suggested, with the temperature control setting at the low temperature recommended by the American  
Meat Institute and the Department of Agriculture. Top heat results in a well colored or carmelized finish  
to meats. When roasting fowl and a heavily browned appearance is not desired, the top oven switch  
should be set at MED or LO. The use of a meat thermometer is strongly recommended for all meat  
roasting operations.  
– 9 –  
 
TIME, TEMPERATURE & SWITCH SETTING CHART FOR BAKING  
This baking chart is a guide only. Recipes, mixing procedures, utensils and individual standards of  
doneness, browning, etc., can result in variations in the precise time, temperature and switch settings  
necessary to produce a satisfactory product.  
High product quality can be obtained and maintained only if all phases of the baking operation are  
properly performed. Variation in ingredients, under or overmixing, holding time before baking, etc., can  
affect the texture, consistency and the basic quality of the product.  
TEMPERATURE  
TIME  
SWITCH SETTINGS  
PRODUCT  
(F°)  
(C°)  
(MIN.)  
TOP  
BOTTOM  
Bread  
Rolls  
375 – 425  
375 – 425  
191 – 218  
191 – 218  
35 – 50  
20 – 30  
MED  
MED  
MED  
MED  
Cake, Layer  
Cup Cakes  
350 – 375  
375 – 400  
350 – 375  
300 – 335  
400 – 425  
400 – 425  
425 – 450  
400 – 425  
177 – 191  
190 – 204  
177 – 191  
149 – 168  
204 – 218  
204 – 218  
218 – 232  
204 – 218  
20 – 30  
15 – 20  
20 – 30  
35 – 50  
25 – 30  
40 – 60  
5 – 8  
MED  
MED  
MED  
MED  
HI  
MED  
MED  
MED  
MED  
MED  
MED  
OFF  
MED  
Cake, Loaf  
Angel Cake  
Corn Bread  
Fruit Pies  
MED  
HI  
Meringue Pies  
Browning Biscuits  
12 – 18  
MED  
– 10 –  
 
CLEANING  
WARNING: DISCONNECT ELECTRICAL POWER SUPPLY BEFORE CLEANING.  
Do not use Dawn dish detergent to clean the interior or exterior of the unit.  
Stainless steel oven fronts may be cleaned with a damp cloth. Stubborn soil may be removed with a  
detergent and water. Rinse thoroughly and wipe dry with a soft clean cloth.  
Porcelain oven linings and door linings may be cleaned with a cloth dampened with detergent or oven  
cleaners.  
Empty the grease collector and clean in a sink.  
Silvertone surfaces may be cleaned with a cloth dampened with a detergent solution. An occasional  
application of silicone base auto polish will help to maintain a "like new" appearance.  
Steel decks may be removed and scoured at the sink. After scouring, the steel decks should be  
reseasoned (see BEFORE FIRST USE in this manual).  
– 11 –  
 
MAINTENANCE  
WARNING: THE BROILER AND ITS PARTS ARE HOT. BE CAREFUL WHEN OPERATING,  
CLEANING OR SERVICING THE BROILER.  
SERVICE AND PARTS INFORMATION  
To obtain service and parts information concerning these broilers, contact the Vulcan-Hart Service  
Depot in your area (refer to listing supplied with the broiler), or Vulcan-Hart Company Service  
Department at the address or phone number shown on the front cover of this manual.  
FORM 31065 (5-98)  
PRINTED IN U.S.A.  
– 12 –  
 

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