Vulcan Hart Convection Oven ECO4C ML 52503 User Manual

INSTALLATION &  
OPERATION MANUAL  
ECO SERIES ELECTRIC  
CONVECTION OVENS  
MODEL  
ECO4S  
ECO4D  
ECO4C  
ECO6D  
ECO6C  
ML-52501  
ML-52502  
ML-52503  
ML-52504  
ML-52505  
ECO4D  
VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. (502) 778-2791  
FORM 30932 Rev. C (2-99)  
 
Installation, Operation And Care Of  
ECO SERIES ELECTRIC CONVECTION OVENS  
KEEP THESE INSTRUCTIONS FOR FUTURE USE  
Your Vulcan Electric Convection Oven is produced with quality workmanship and material. Proper installation,  
usage and maintenance of your oven will result in many years of satisfactory performance.  
The manufacturer suggests that you thoroughly read this entire manual and carefully follow all of the instructions  
provided.  
GENERAL  
The Model ECO Series Convection Ovens feature a 500°F thermostat, timer, porcelain interior, and a 2-speed,  
1
2
H.P. blower motor as standard equipment. Each oven is provided with a standard 208 or 240 volt, 60 Hz, and  
1- or 3-phase electrical service. A 480 volt electrical service is available optionally. The oven doors open  
independently.  
The ECO Series Oven is a single cavity oven. It is furnished with five racks. An open stand with lower storage  
rack is available as an option.  
Stacked ovens are furnished with a stacking kit for mounting one oven on top of the other.  
Features of the models are shown below:  
ROAST &  
OVEN  
STYLE  
THERMOSTAT  
(Each Oven)  
TIMER  
(Each Oven)  
HOLD  
OPTION  
GENTLE  
BAKE  
MODEL  
ECO4S  
ECO4D  
ECO4C  
ECO6D  
ECO6C  
Std. Depth  
Std. Depth  
Std. Depth  
Deep Depth  
Deep Depth  
Mechanical  
Solid State  
Electronic  
Solid State  
Electronic  
1-Hour Dial  
1-Hour Dial  
Electronic  
1-Hour Dial  
Electronic  
X
X
X
X
Additional racks are available as accessories.  
– 3 –  
 
INSTALLATION  
UNPACKING  
Immediately after unpacking the oven, check for possible shipping damage. If this oven is found to be damaged,  
save the packaging material and contact the carrier within 15 days of delivery.  
Prior to installation, verify that the electrical service agrees with the specifications on the oven data plate, located  
on the inside of the bottom front cover.  
Do not use the doors or their handles to lift the oven.  
LOCATION  
The installation location must allow adequate clearances for servicing and proper operation.  
INSTALLATION CODES AND STANDARDS  
Vulcan ovens must be installed in accordance with:  
In the United States of America:  
1. State and local codes.  
2. ANSI/NFPA 96, "Vapor Removal from Cooking Equipment" (latest edition), available from National Fire  
Protection Association, Batterymarch Park, Quincy, MA 02269.  
3. National Electrical Code, ANSI/NFPA-70 (latest edition).  
In Canada:  
1. Local codes.  
2. Canadian Electrical Code CSA Standard C22.2 No. 3 (latest edition), “Electrical Features of Fuel  
Burning Equipment.”  
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. If  
using the modular stand, set the oven on the stand after unpacking.  
Assembling the Legs to the Oven  
1. Unpack the oven and leg set.  
2. Position oven on its back, taking care not to scratch or damage it.  
3. Attach each of the four leg assemblies to bottom of oven with the 24 bolts and lockwashers (furnished)  
(6 per leg). Carefully raise oven to its normal position.  
Assembling Cabinet Base or Stand  
1. Screw two locating studs (found in cabinet base or stand carton) through the cabinet top flange or the stand  
base bottom into bottom of oven (Fig. 1).  
2. Attach each of the four leg assemblies to the bottom of the stand with the 24 bolts and lockwashers  
(furnished) (6 per leg).  
– 4 –  
 
3. Mount the oven on top of the stand or cabinet (Fig. 1).  
Fig. 1  
Assembling the Chimney and Flue Extension  
Remove the oven chimney and flue extension from the rear of the oven (motor compartment) and use the screws  
provided to fasten the chimney to the top rear of the oven. The flanges on the chimney are to be positioned under  
the top cover. Also attach the flue extension.  
Electrical Connections  
WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE  
PORTIONS OF THE NATIONAL ELECTRICAL CODE ANSI/NFPA70 (LATEST EDITION) AND/OR OTHER  
LOCAL ELECTRICAL CODES.  
WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT  
SWITCH TO INDICATE THAT YOU ARE WORKING ON THE CIRCUIT.  
Remove the wiring compartment cover on the front of the oven. Remove the appropriate knockout on the bottom  
of the oven and attach the power supply conduit to the bottom of the oven.  
Comply with the appropriate wiring diagram (included with this manual) when making connections to the  
electrical supply lines.  
Replace the wiring compartment cover and turn on the power supply.  
ELECTRICAL DATA  
208-240V  
3-PHASE LOADING 3-PHASE LOADING  
KW PER PHASE KW PER PHASE  
L1-L2 L2-L3 L1-L3 L1-L2 L2-L3 L1-L3 L1  
480V  
NOMINAL AMPERES PER LINE WIRE  
3-PHASE  
TOTAL  
KW  
1-PHASE  
208V  
L2  
240V  
L2  
480V  
L2  
208V 240V 480V  
L3  
L1  
L3  
L1  
L3  
Single Oven  
11  
22  
3.35 3.35 4.30 3.33 3.33 4.33 32.0 27.9 32.0 27.7 24.2 27.7 13.9 12.0 13.9 52.8 45.8 22.9  
6.70 6.70 8.60 6.66 6.66 8.66 64.0 55.8 64.0 55.4 48.4 55.4 27.8 24.0 27.8 105.6 91.6 45.8  
Stacked Oven  
The 208, 240, and 480 volt ovens covered by this manual are for connection to a 1- or 3-phase power system. Ovens leaving the factory are  
wiredforconnectiontoa3-phasepowersystem.Wirescanbechangedattheinstallationsiteforconnectiontoa1-phasepowersystembyaltering  
the wiring at the terminal block.  
LEVELING  
Adjust the legs to ensure that the oven racks are level in the final installed position.  
– 5 –  
 
CASTERS  
If the oven is to be installed on casters, assemble the casters to the legs provided. Place the locking casters on  
the front legs and non-locking casters on the rear legs.  
ASSEMBLING STACKED OVENS  
1. Unpack the ovens and stack kit. Position one oven on its back for access to the oven bottom, taking care  
not to scratch or damage it. Attach the four leg assemblies with the 24 bolts and lockwashers (furnished)  
(6 per leg).  
2. Place lower oven (with legs) on floor and remove two 716" (11.1 mm) diameter knockouts on each side of  
top cover plus the 138" (35 mm) diameter knockout at the right front of the top cover.  
3. Install the two locating studs (included in leg stack set) into screw plates on underside of upper oven (Fig. 2).  
4. Remove oven chimneys stored at the rear of both ovens. Discard one chimney. Attach the remaining  
chimney to the top of the upper oven (oven without legs) (Fig. 3). The flanges on the chimney are to be  
positioned under the top cover.  
5. Move the oven with legs to the installed position and place the upper oven on top of the lower oven using  
the locating studs. Remove the wiring compartment cover from the front of both ovens. This will facilitate  
routing the power leads (furnished) to the top oven, as well as attaching the 1" (25.4 mm) conduit nipple and  
locknut (furnished).  
6. Attach the short flue extension over the exhaust vent at the rear of the upper oven. Slide the long flue  
extension tube over the exhaust vent at the rear of the lower oven (Fig. 3). These extensions should direct  
the exhaust fumes upward through and above the top oven.  
7. Place the 1" (25.4 mm) conduit nipple through the 138" (35 mm) hole in the bottom of the top oven and the  
top of the bottom oven and clamp the two ovens together with the locknut from the underside.  
Fig. 2  
Fig. 3  
– 6 –  
 
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 ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT  
SWITCH TO INDICATE THAT YOU ARE WORKING ON THE CIRCUIT.  
Ensure that the electrical power supply agrees with the specifications on the oven data plate and complies with  
the wiring diagram on the oven.  
1. Attach the power leads (furnished as part of the stack set) to the line side of the terminal block of the upper  
oven. Then carefully route these leads down through the conduit nipple and behind the control panel of the  
lower oven.  
2. Attach these leads to the lower oven terminal block per the wiring diagram. At the same time, attach the  
power supply conduit to the bottom of the lower oven. Also attach the power supply leads to the line side  
of the terminal block.  
3. Finally, inspect and check all wiring and terminal connections for tightness and proper routing away from any  
moving parts (relay solenoid core), or pinch points (cover on oven frame). Then carefully replace the oven  
control panel for both ovens.  
Refer to Electrical Data chart on page 5.  
LEVELING  
Adjust the legs to ensure that the oven racks are level in the final installed position by turning the bottom hex  
tips on the floor.  
CASTERS  
If the stacked ovens are to be installed on casters, assemble the casters to the legs provided. Place the locking  
casters on the front legs and non-locking casters on the rear legs.  
– 7 –  
 
OPERATION  
CONTROLS — MODELS ECO4S AND ECO4D/ECO6D OVENS (Fig. 3)  
P
P
T
O
L
TO  
O
P
O
EN  
P
V
E
EN  
V
N
MASTER SWITCH  
ON LIGHT  
MASTER SWITCH  
ON LIGHT  
T
EN  
T
M
A
S
W
S
IT  
M
SW  
T
AS  
ER  
C
H
TE  
R
IT  
C
H
O
N
O
N
OF  
VENT DAMPER CONTROL  
F
O
FF  
VENT DAMPER CONTROL  
HEAT LIGHT  
HEAT LIGHT  
OVEN COOL SWITCH  
OVEN COOL SWITCH  
O
C
V
O
EN  
O
C
VE  
O
N
L
2
M
O
SPE  
E
O
2
M
SP  
L
D
O
EE  
TO  
D
R
T
O
O
V
O
R
EN  
LA  
M
O
LA  
O
V
EN  
N
O
N
P
S
M
H
I
P
S
H
I
2-SPEED MOTOR  
SWITCH  
O
2-SPEED MOTOR  
SWITCH  
N
O
N
O
FF  
O
FF  
LO  
W
LO  
W
FF  
OF  
F
O
FF  
O
500  
475  
F
OVEN LAMP SWITCH  
500  
OVEN LAMP SWITCH  
150  
450  
40
450  
42
40
225  
250  
350  
250  
300  
300  
350  
300  
TH  
E
RM  
O
S
THERMOSTAT  
T
THERMOSTAT  
AT  
THERMOSTAT  
0
60  
55  
50  
45  
5
0
10  
60  
55  
50  
45  
5
15  
20  
10  
15  
20  
40  
35  
25  
30  
TIMER  
40  
35  
TIMER  
TIMER  
25  
30  
TIMER  
WARNING  
TURN GAS VALVE "ON"  
WARNING  
FUSE HOLDERS  
FUSE HOLDERS  
TURN GAS VALVE "ON"  
PUSH MASTER SWITCH TO  
PUSH MASTER SWITCH TO  
"ON" POSTION. IF OVEN  
"ON" POSTION. IF OVEN  
15 AM  
P
15 AMP  
CLASS  
FU  
G
CLASS  
G
SES  
FUSES  
DISCONNECT SUPPLY B
CHANGING FUSES, CLEANING  
DISCONNECT SUPPLY E  
CHANGING FUSES, CLEANING  
OR ANY OTHER SERVICE  
OR ANY OTHER SERVICE  
FLANGE REMOVED  
FOR CLARITY  
FLANGE REMOVED  
FOR CLARITY  
PL-51828  
PL-51827  
MODEL ECO4S  
MODEL ECO4D/ECO6D  
Fig. 3  
MASTER SWITCH  
ON turns oven control circuits on.  
OFF turns oven control circuits off.  
OVEN COOL SWITCH  
OVEN LAMP SWITCH  
THERMOSTAT  
TIMER  
Allows the fan motor to run with the doors ajar to speed oven cooling.  
Turns lights in the oven on or off.  
Controls oven temperature during cooking operation.  
Use to set cooking cycle time. Alarm sounds continuously when elapsed  
time counts down to 0; oven does not turn off. Turn timer to OFF position  
to stop alarm. When oven is not in use, keep timer at OFF position.  
ON LIGHT (Amber)  
HEAT LIGHT (White)  
Lit when Master Switch is positioned at ON.  
Comes on and goes off when the heating elements cycle on and off.  
– 8 –  
 
2-SPEED MOTOR LO / HI  
Adjusts air velocity in the oven. Use the HI setting as the usual operating  
speed and the LO setting for delicate product like meringue which might be  
blown around in the oven.  
FUSE HOLDERS  
Replace fuses with appropriate type described on control panel.  
MOISTURE VENT DAMPER  
Located to the upper left of the control panel. Open the damper in order to  
exhaust excess moisture caused by cooking products with a high moisture  
content. Close damper when dry products are being cooked. Settings  
between OPEN and CLOSED permit selection for the best performance.  
BEFORE FIRST USE  
Before using the oven for the first time, it must be "burned in" to release any odors that might result from heating  
the new surfaces in the chamber.  
1. Using a clean damp cloth, wipe the inside of the oven, including the racks.  
2. Close the oven doors, turn the Master Switch ON, turn the Thermostat to 300°F (149°C) and allow the oven  
to cycle for 6 to 8 hours before turning the Master Switch OFF.  
USING THE ECO4S AND ECO4D/ECO6D OVENS  
Preheating  
1. Turn Master Switch ON. Amber ON light will come on, indicating that power to oven is on.  
2. Set Thermostat as desired. Refer to COOKING GUIDELINES for suggested temperatures and times for  
various products.  
3. Prepare product and place in suitable pans. When white HEAT light goes off, oven has reached desired  
preheat temperature.  
Cooking  
1. Open doors and load the product into the oven. Place pans in the center of the racks. Close doors.  
2. Set the Timer. After the preset time lapses, turn timer to OFF position to stop alarm.  
3. When product is done, open doors and carefully remove cooked product from the oven. Wipe up any spills.  
End of Day  
1. Turn thermostat to OFF.  
2. Turn Oven Cool Switch ON. Leave door ajar while the fan is on to cool the oven.  
3. When oven has cooled sufficiently, turn Oven Cool Switch and Master Switch to OFF and clean the oven.  
9 –  
 
CONTROLS MODEL ECO4C/ECO6C OVENS (Fig. 4)  
PULL TO OPEN VENT  
VENT DAMPER CONTROL  
TEM  
P
E
R
A
T
U
R
E
THERMOSTAT  
HE  
A
T
RE  
A
D
Y
HOLD BUTTON  
TIMER  
RO  
A
S
T
HO  
L
D
TEMPERATURE KNOB  
ROAST BUTTON  
TIM  
E
TIMER KNOB  
THERMOMETER BUTTON  
GENTLE BAKE BUTTON  
2 SPEED FAN - HI / LO  
TI  
M
ST  
A
E
R
T
GE  
BA  
N
K
T
LE  
E
ST  
O
P
FA  
N
S
P
E
E
D
LI  
G
H
TIME BUTTON  
T
S
H
I
ON  
OVEN LAMP SWITCH  
START/STOP BUTTON  
LO  
W
OF  
F
PO  
W
E
R
ON / OFF / OVEN COOL  
SWITCH  
ON  
OF  
F
OV  
DO  
E
N
N
W
FUSE HOLDERS  
WARNING  
TURN GAS VALVE "ON"  
PUSH MASTER SWITCH TO  
"ON" POSTION. IF OVEN  
15 AMP  
CLASS  
G
FUSES  
DISCONNECT SUPPLY
CHANGING FUSES, CLEANING  
FLANGE REMOVED  
FOR CLARITY  
OR ANY OTHER SERVICE  
PL-51829  
MODEL ECO4C/ECO6C  
Fig. 4  
THERMOSTAT CONTROL  
Temperature Display (When Not Timing Product)  
Displays set cook temperature while the light in the Roast Button is lit. Will be overridden to  
display actual cavity temperature for 8 seconds when Thermometer Button is pushed.  
1. The light in the Thermometer Button will be lit while the actual temperature is being  
displayed.  
2. The light in the Thermometer Button will extinguish when the display returns to set  
temperature display.  
Temperature Display (When Timing Product)  
Displays set hold temperature while the light in the Hold button is lit. Displays the roast  
temperature when the Roast button is lit. Will be overridden to display actual cavity temperature  
for 8 seconds when the Thermometer Button is pushed.  
1. The light in the Thermometer Button will be lit while actual temperature is being  
displayed.  
2. The light in the Thermometer Button will extinguish when the display returns to set  
temperature display.  
10 –  
 
Temperature Knob (When Not Timing Product)  
1. Sets the roast temperature when the Roast Button light is lit. The Roast Button  
light can be turned on by pressing the Roast Button.  
2. Sets the hold temperature when the Hold Button light is lit. The Hold Button light can  
be turned on by pressing the Hold Button.  
Temperature Knob (When Timing Product)  
1. Sets the roast temperature when the Roast Button light is lit. The Roast Button  
light cannot be changed by pressing the Roast Button.  
2. Sets the hold temperature when the Hold Button light is lit. The Hold Button light  
cannot be changed by pressing the Hold Button.  
Roast Button Light (If On) - (While Not Timing Product)  
Indicates the roast mode is selected. This means:  
1. The displayed temperature settings will be for the roast temperature except for the  
time that the light in the Thermometer Button is lit.  
2. Rotating the Thermostat Knob will change the roast set temperature.  
3. Cook time can be adjusted using the Timer Knob.  
4. The time displayed is the initial set cook time.  
5. It is possible to select the Hold mode using the Hold Button.  
Roast Button Light (If On) - (While Timing Product)  
Indicates the roast mode is selected. This means:  
1. The displayed temperature settings will be for the roast temperature except for the  
time that the light in the Thermometer Button is lit.  
2. Rotating the Temperature Knob will change the roast set temperature.  
3. It is not possible to select the Hold mode using the Hold Button.  
4. The time displayed is the time counted down from the initial cook time set.  
Roast Button  
1. Lights the Roast Button light. See Roast Button Light above.  
2. Selects the Roast mode.  
3. Has no effect if timing in the Hold mode.  
11 –  
 
Thermometer Button  
When pressed, causes actual cavity temperature to display for about 8 seconds, then display  
returns to set temperature.  
Heat Light  
When lit, indicates that power is being supplied to the heating elements.  
Ready Light  
Will be lit any time the actual temperature is within +/- 5°F (+/- 2.7°C) of the set temperature for  
the current mode.  
TIMER CONTROL  
Time Display (While Not Timing Product)  
Displays the set cook time if the light in the Roast Button is lit.  
Time Display (While Timing Product)  
1. Displays the counted down cook time if the Roast Button light is lit and in the  
Roast mode.  
2. Displays the counted up hold time if the Hold Button light is lit and in the Hold  
mode. Count-up of hold time does not begin until cavity temperature reaches the  
hold temperature.  
Time Display Semicolon  
1. Flashing if product is timing.  
2. Not flashing if not timing product.  
Time Button  
Press to set cooking cycle time.  
Time Button Light  
Illuminates when the Time Button is pressed.  
Timer Knob  
Sets the cook time when not already timing and the Cook Time indicator is lit.  
12 –  
 
Gentle Bake Button  
Selects the gentle bake time setting. A roast time must be set first. The gentle bake time can  
then be set equal to or less than the roast time. The gentle bake time will be the portion of roast  
time to operate in the gentle bake mode. Gentle bake mode will start first. When gentle bake time  
elapses, the remainder of the roast time will be in the non-gentle bake mode.  
Use when cooking delicate product, such as strudel, muffins, cupcakes, meringue pies, etc., to  
keep product from forming "waves" on the top.  
Use the Gentle Bake Button to switch between the selection of gentle bake mode and no  
gentle bake mode time setting. A gentle bake mode time of zero means no gentle bake mode will  
occur.  
The light in the Gentle Bake Button will be lit when in the gentle bake mode.  
In Gentle Bake Mode:  
1. The fan cycles (45 seconds ON and 45 seconds OFF) for the duration of the gentle  
bake cycle time.  
2. The fan stays on while the heat cycles in hold mode.  
3. The fan stays on while heat cycles at 100% power when not timing.  
4. Can be switched at any time.  
Stop/Start Button  
1. Initiates timing a product in the mode selected if a cook time has been set.  
2. Stops timing of a product if a timing sequence has already started.  
Hold Button  
Selects Hold mode.  
1. Allows selection of hold temperature.  
2. Temperature indication of ---°F (---°C) indicates no hold mode.  
Hold Button Light  
Is lit when in the Hold mode.  
1. When not timing, allows setting/enabling a hold mode setting of ---°F (---°C),  
meaning no hold will take effect.  
2. Any other temperature means that when the actual cook time has ended, the oven  
will enter the Hold mode and use the hold temperature.  
13 –  
 
TWO-SPEED FAN SWITCH  
Adjusts air velocity in the oven.  
OVEN LAMP SWITCH  
Turns lights in the oven on or off.  
ON / OFF / OVEN COOL SWITCH  
1. ON turns oven control circuits on.  
2. OFF turns oven control circuits off.  
3. OVEN COOL allows the fan motor to run with the doors ajar to speed oven cooling.  
FUSE HOLDERS  
Replace fuses with appropriate type described on control panel.  
MOISTURE VENT DAMPER  
Located to the upper left of the control panel. Open the damper in order to exhaust excess  
moisture caused by cooking products with a high moisture content. Close damper when  
dry products are being cooked. Settings between OPEN and CLOSED permit selection for the  
best performance.  
BEFORE FIRST USE  
Before using the oven for the first time, it must be "burned in" to release any odors that might result from heating  
the new surfaces in the chamber.  
1. Using a clean damp cloth, wipe the inside of the oven, including the racks.  
2. Close the oven doors, push the On/Off/Oven Cool switch to the ON position, turn the Thermostat to 300°F  
(149°C) and allow the oven to cycle for 6 to 8 hours before turning the On/Off/Oven Cool switch OFF.  
USING THE ECO4C/ECO6C OVENS  
Preheating  
1. Turn On/Off/Oven Cool switch to ON position. The Heat light will come on, indicating that power to the  
oven is on.  
2. Set Thermostat as desired. Refer to COOKING GUIDELINES for suggested temperatures and times for  
various products.  
3. Prepare product and place in suitable pans. When Ready light comes on, oven has reached desired preheat  
temperature.  
14 –  
 
Cooking  
1. Open doors and load the product into the oven. Place pans in the center of the racks. Close doors.  
2. Set Roast temperature and time. Set Hold temperature and Gentle Bake time, if desired. Gentle Bake time  
may not be more than roast time. Gentle Bake will cycle the fan during the set time at the beginning of the  
cooking cycle.  
3. Press the Start/Stop button to start the cooking cycle.  
4. At the end of the cooking cycle, the buzzer will sound continuously if the Hold mode is OFF. If the Hold mode  
is ON, there will be a short beep at the beginning of Second Stage Cooking (oven temperature will begin to  
decline to the Hold temperature), and a long beep (20 seconds) at the end of the cooking cycle. (See ROAST  
AND HOLD OPERATION.)  
5. When product is done, open doors and carefully remove cooked product from the oven. Wipe up any spills.  
End of Day  
1. Push On/Off/Oven Cool switch to OVEN COOL. Leave door ajar while the fan is on to cool the oven.  
2. When oven has cooled sufficiently, push On/Off/Oven Cool switch to OFF position and clean the oven.  
ERROR MESSAGES ECO4C/ECO6C OVENS  
E-01 High limit error. Contact your local Vulcan authorized service representative.  
E-02 Low limit error. Contact your local Vulcan authorized service representative.  
E-03 High ambient temperature (215°F/101.7°C). Contact your local Vulcan authorized service representative.  
E-04 Low ambient temperature (32°F/0°C). Let control warm up after cold storage.  
E-06 Thermocouple probe open. Contact your local Vulcan authorized service representative.  
When calling for service, please advise what error code was displayed.  
15 –  
 
ROAST AND HOLD OPERATION  
Roast and Hold cooks the product in two stages. During First Stage Cooking, the oven temperature is regulated  
by the Roast thermostat for the amount of time set on the Timer. After the lapsed time counts down to 00:00,  
Second Stage Cooking begins. During Second Stage Cooking, the heating elements are off as the temperature  
in the oven declines to the Hold Temperature. The doors should remain closed during Second Stage Cooking.  
When the Hold temperature is reached, cooking is done. The Time Display counts up the Hold time and flashes  
"Hold." Temperature in the oven will be maintained at the Hold temperature until the oven is turned off.  
ROAST AND HOLD DIAGRAM - Time vs. Temperature  
OVEN TEMPERATURE  
SHORT BEEP.  
400ºF  
300ºF  
200ºF  
100ºF  
TIMER DISPLAY COUNTS DOWN,  
COLON FLASHES.  
TIMER DISPLAY FLASHES 00:00.  
ROAST THERMOSTAT OFF.  
HEATERS OFF UNTIL HOLD  
TEMPERATURE IS REACHED.  
COOKING FROM  
STORED HEAT  
LONG BEEP (20 SEC.)  
HEATERS MAINTAIN  
HOLD TEMPERATURE.  
TIMER DISPLAY COUNTS UP  
HOLD TIME AND FLASHES  
"HOLD."  
LOAD PRODUCT  
INTO OVEN  
PRODUCT TEMPERATURE  
TEMP.  
PREHEAT  
FIRST STAGE COOKING  
SECOND STAGE  
HOLDING  
COOKING  
(DO NOT OPEN  
DOORS)  
TIME  
PL-51887  
PROPER UTENSILS  
The use of proper utensils can enhance oven operation. Medium and light weight pans allow the product to warm  
faster. Roast meats in shallow pans deep enough to hold all juices yet allow free air circulation.  
OPERATING HINTS  
When using the convection oven for the first time with a particular food, check the degree of doneness  
periodically before the suggested time has elapsed, to make sure the desired doneness is achieved.  
Record your temperature and time settings for various products. The convection oven can provide consistent,  
repeatable results.  
The convection oven is faster than conventional deck-type ovens; temperature settings are lower and cook  
times are shorter. Since recipes and foods are subject to many variations and tastes, the guidelines regarding  
Times and Temperatures in this manual are SUGGESTIONS ONLY. Experiment with your food products to  
determine the cooking temperatures and times that give you the best results.  
16 –  
 
COOKING GUIDELINES MODELS ECO4S AND ECO4D/ECO6D OVENS  
PRODUCT  
TEMPERATURE  
TIME  
(MIN.)  
NUMBER OF RACKS  
°F (°C)  
BREAD PRODUCTS  
Bread (24, 1-lb. loaves) (454 gr.)  
340 (171)  
30  
3 (every other rack  
starting with bottom rack)  
Hamburger Rolls  
Corn Bread  
Yeast Rolls  
300 (149)  
335 (168)  
325 (163)  
400 (204)  
15  
25  
25  
6
5
5
5
5
Baking Soda Biscuits  
PASTRIES  
Frozen Berry Pies (22 oz.) (624 gr.)  
Frozen Fruit Pies (46 oz.) (1.3 kg)  
Fresh Apple Pie (20 oz.) (567 gr.)  
Sheet Cake (5 lb. per pan) (2.3 kg)  
Sugar Cookies  
Cherry Crisp  
Chocolate Cake  
Cinnamon Buns  
Brownies  
Danish  
Angel Cakes  
Cream Puffs  
Pumpkin Pie  
Fruit Cakes  
Apple Turnovers  
350 (177)  
350 (177)  
350-375 (177-190)  
315 (157)  
300 (149)  
300 (149)  
335 (168)  
335 (168)  
350 (177)  
335 (168)  
250 (121)  
350 (177)  
300 (149)  
275 (135)  
350 (177)  
34  
45-50  
25-30  
20-22  
15  
25  
20  
20  
15  
5 (30 pies)  
5 (20 pies)  
5 (30 pies)  
5
5
5
5
5
5
5
3
5
5
3
5
12  
25-30  
20-25  
30-35  
70  
15  
MEAT  
Hamburger Patties (5 per lb. [454 gr.] well done)  
Steamship Round (80 lb. quartered) (36 kg)  
Steamship Round (whole 60-80 lb.) (27-36 kg)  
Rolled Beef Roast (20 lb. avg.) (9 kg)  
Prime Ribs  
Baked Stuffed Pork Chops  
Boned Veal Roast (15 lb.) (7 kg)  
Lamb Chops (small lean)  
400 (204)  
275 (135)  
275 (135)  
300 (149)  
275 (135)  
275 (135)  
300 (149)  
400 (204)  
450 (232)  
325 (163)  
10-12  
23/4 hrs. (well done)  
8 hrs. (med.)  
4 hrs. (med.)  
3 hrs. (med.)  
25-30  
11 (264)  
2 (2 pans ea. rack)  
1
3 (2 roasts per pan)  
2 (2 roasts per pan)  
5
3 hrs., 10 min.  
6
2
5 (24 per pan)  
5 (16-18 per pan)  
5 (2 pans per rack)  
Shell Steaks (10 oz.) (283 gr.)  
Meat Loaf  
7-8  
40-45  
FISH  
Fish Stix  
Baked Stuffed Shrimp  
Baked Stuffed Lobster (11/2 lb.) (680 gr.)  
Halibut Steaks (frozen 5 oz.) (142 gr.)  
335 (168)  
400 (204)  
400 (204)  
350 (177)  
16-18  
6-7  
10  
11  
5
3
30  
5
FOWL  
Chicken Breast Thigh  
Chicken Back Wing  
Chicken (21/2 lb. quartered) (1 kg)  
Turkey Rolled (18 lb. rolls) (8 kg)  
350 (177)  
350 (177)  
350 (177)  
310 (154)  
33-35  
30-33  
30  
5
5
5 (26 per pan)  
3 (6 pan - 2 rolls ea. rack)  
3 hrs., 45 min.  
OTHER  
Macaroni and Cheese  
Beef Pot Pies  
Turkey Pot Pies  
Stuffed Peppers  
Melted Cheese Sandwiches  
Pizza (7" frozen) (18 cm)  
Idaho Potatoes (120 count)  
350 (177)  
400 (204)  
400 (204)  
350 (177)  
400 (204)  
435 (224)  
440 (227)  
30  
30-35  
30-35  
15-20  
10  
5
5
5
3
5 (120)  
11  
50  
6
5
Where the number of racks is 5, insert the first rack on the 2nd from bottom position and place the others on every other rung.  
17 –  
 
TIMER SETTINGS FOR ROLLED BEEF ROASTS MODEL ECO4C/ECO6C OVENS  
ROAST TEMPERATURE  
HOLD TEMPERATURE  
DONENESS  
200°F (93°C)  
250°F (121°C)  
300°F (149°C)  
140°F (60°C)  
RARE  
MEDIUM  
RARE  
MEDIUM  
RARE  
MEDIUM  
WEIGHT OF ROAST  
POUNDS  
HOURS:MINUTES  
8
2:40  
2:50  
3:00  
3:10  
3:20  
3:30  
3:40  
3:45  
3:55  
4:00  
4:10  
4:15  
4:25  
4:30  
4:40  
4:45  
4:55  
5:00  
5:05  
5:15  
5:20  
5:25  
5:30  
3:45  
3:58  
4:15  
4:25  
4:40  
4:50  
5:05  
5:15  
5:30  
5:40  
5:50  
6:00  
6:10  
6:20  
6:30  
6:40  
6:50  
7:00  
7:10  
7:20  
7:25  
7:35  
7:45  
1:45  
2:20  
2:25  
2:35  
2:45  
2:50  
3:00  
3:10  
3:15  
3:20  
3:30  
3:35  
3:40  
3:50  
3:55  
4:00  
4:05  
4:15  
4:20  
4:25  
4:30  
4:35  
4:40  
4:45  
1:20  
1:25  
1:30  
1:35  
1:40  
1:45  
1:50  
1:55  
2:00  
2:00  
2:05  
2:10  
2:15  
2:15  
2:20  
2:25  
2:25  
2:30  
2:35  
2:35  
2:40  
2:45  
2:45  
1:40  
1:50  
1:55  
2:00  
2:05  
2:15  
2:20  
2:25  
2:30  
2:35  
2:40  
2:45  
2:50  
2:55  
2:55  
3:00  
3:05  
3:10  
3:15  
3:20  
3:20  
3:25  
3:30  
9
1:50  
2:00  
2:05  
2:15  
2:20  
2:25  
2:30  
2:35  
2:40  
2:45  
2:50  
2:55  
3:00  
3:05  
3:10  
3:15  
3:20  
3:25  
3:30  
3:35  
3:35  
3:40  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
18 –  
 
POWER OUTAGE  
In case of a power outage, the oven will automatically shut down. When power is restored to the lines, the oven  
will resume its normal operation. However, if the oven is to be left unattended during a power outage, push the  
master switch to the OFF position. When power is restored to the lines, push master switch to the ON position,  
wait for the oven to preheat, then resume normal cooking operations.  
CLEANING  
WARNING: TURN OVEN OFF AND DISCONNECT ELECTRICAL SUPPLY BEFORE CLEANING.  
Clean outside of the oven daily by wiping with a clean damp cloth.  
Clean porcelain oven interior daily with soap or detergent and water. Rinse thoroughly and wipe dry with a soft  
clean cloth.  
Optional Stainless Steel Oven Interior  
Soap or detergent and water usually handle routine cleaning. Rinse thoroughly, dry with a soft clean cloth.  
For burned-on foods and grease which resist simple soap and water cleaning, an abrasive cleanser (scouring  
powder) mixed into a paste may be used. Apply with stainless steel wool or sponge, always rubbing with the  
"grain."  
This treatment is equally effective for "heat tint" (slightly darkened areas caused by oxidation). Again, remember  
to rub in the direction of the polish lines. Rinse with clear water and dry with a soft cloth.  
19 –  
 
MAINTENANCE  
WARNING: TURN OVEN OFF AND UNPLUG POWER SUPPLY CORD BEFORE PERFORMING ANY  
MAINTENANCE.  
The fan motor comes with sealed bearings and requires no lubrication.  
Annually check the flue, when cool, to be sure it is free of obstructions.  
REPLACING LAMPS  
Allow oven to cool.  
Remove all racks by pulling forward, lifting up and out.  
Remove the right rack support by lifting up.  
Unscrew glass dome(s) from light body.  
Replace the bulb(s).  
Reassemble glass dome(s), rack support and racks by reversing the disassembly procedure.  
SERVICE AND PARTS INFORMATION  
To obtain service and parts information concerning your ECO Series Oven, contact the Vulcan-Hart Service  
Depot in your area (refer to listing supplied with this oven), or Vulcan-Hart Company Service Department at the  
address or phone number shown on the front cover of this manual.  
FORM 30932 Rev. C (2-99)  
20 –  
PRINTED IN U.S.A.  
 

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