BKI COH-ED, COH-ES, CO1-E, COH-E Installation And Operating Instructions Manual

INSTALLATION AND OPERATING INSTRUCTIONS

FULL SIZE (CO1-E) & 1/2 SIZE (COH-E)

ELECTRIC CONVECTION OVENS

Models: CO1-E and COH-E

INTENDED FOR OTHER THAN HOUSEHOLD USE

RETAIN THIS MANUAL FOR FUTURE REFERENCE

OVEN MUST BE KEPT CLEAR OF COMBUSTIBLES AT ALL TIMES

FOR YOUR SAFETY

! !

! !

Do not store or use gasoline or other flammable vapors and 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.

Initial heating of oven may generate smoke or fumes and must be done in a well-

! !

This equipment has been engineered to provide you with year round dependable service when used
according to the instructions in this manual and standard commercial kitchen practices.

Phone: [phone]
Fax: [phone]
Toll Free: [phone]
Website: www.bkideas.com
E-mail: [e-mail]

ventilated area. Overexposure to smoke or fumes may cause nausea or dizziness.

P/N U4149A 9/07

BKI Worldwide Headquarters

PO Box 80400

Simpsonville, SC 29680-0400 USA

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INDEX

INSTALLATION INSTRUCTIONS

SECTION ITEM PAGE

1 Receiving 2
2 Location & Minimum Clearances 2
3A Set-Up & Mounting for COH-E1 3
3B Set-up & Mounting for CO1-E 3
4 Electrical Connections
5 Initial Start Up 5
6 System Check & Rotary Controls 5
7 Steam Injection (Optional)

6

OPERATING INSTRUCTIONS

SECTION ITEM PAGE

4

1 General Instructions
2 System Operation Sequence 6

1. Cook Only 6

2. Timed Cooking 6

3. Cook & Hold 7

4. Steam Injection (Optional) 7

5. Oven Cool Down 7
3 Cleaning 8
4 Servicing 9
5 Wiring Diagrams 10

a. 208-240V North America 10
b. 230-400V CE 11

6 Parts Lists w/Exploded Views 12

a. CO1-E Parts List w/Exploded View 12
b. COH-E Parts List w/Exploded View 15

7 Warranty 19

6

INSTALLATION INSTRUCTIONS

1. RECEIVING

Read the notice on the outside carton regarding damage in transit. “CONCEALED DAMAGE”,
damage discovered after opening the crate(s), must be reported immediately to the carrier. The carrier
will perform an inspection of the damage and furnish forms for the consignee's claim against the carrier.
Retain all packing material
oven arrives, it should consist of: A crate (or carton) containing your new oven, and a carton containing
four 30” legs with mounting hardware (for CO1-E1 oven only) or a set of four 6” legs (for CO1-E2
stacked

installations). Legs for COH-E are packed inside the oven.

- including outer carton until the inspection has been completed. When the

2. LOCATION & MINIMUM CLEARANCES

a. Adequate air space must be provided for proper venting of the motor and the controls.
b. The oven should be located no closer than 1” (COH-E) / 2” (CO1-E) on the left side, 1” on the right

side and 1”
c. Keep the area around your oven free and clear of combustible materials.
d. Provision of adequate air supply to the oven for ventilation is essential. Minimum clearances must

be maintained at all times.

on the rear from any combustible or non-combustible construction.

2

MINIMUM CLEARANCES

COH-E1 CO1-E1

Inches mm Inches mm

Right

Left 1 25

Rear 1

1 25 1 25

2 50

25 1 25

Suitable for installation on combustible floors when installed on factory supplied legs or casters.

3A.SET-UP / MOUNTING FOR COH-E1

Counter-top installation must conform to one of the following methods:

1. COH-E1: DIRECT PLACEMENT ON COUNTER

a. Make sure the counter is level.
b. Clean the area where unit is to be installed.
c. Place the unit in position on the counter and mark the outline of the unit.
d. Remove the unit and

apply 1 ¼” bead of sealer (Dow Corning RTV 732 Multipurpose Sealant or

its equivalent) directly onto the counter following the traced outline (see Sketch “A”).

e. Place the unit in position, over the sealer, on the counter.
f. With the unit in place, apply an additional heavy bead of sealer along all
g. Wipe clean any excess sealer.

SKETCH “A” - TOP VIEW

SKETCH “B” - FRONT VIEW

Traced Outline

edges (see Sketch“B”).

RBKI

WO LDWIDE

BAKERS PRIDE

1 1/4” Bead of
sealer applied

Bead of sealer

along oven edges

onto counter

2. COH-E1: INSTALLATION / MOUNTING 6” LEGS (Optional)

a. The adjustable legs are not shipped mounted to unit. The legs are packed inside the unit with the

wire shelves.

b. After unpacking the unit, remove legs and any other material from inside the oven.
c. Place the unit on a counter or other flat,

stable surface.
d. With sufficient help, tilt the unit back far enough to mount the two front legs.
e. Tighten the upper part of the leg with an adjustable wrench.
f. After installing the front legs, lift the rear of the unit more than 6” off the surface and block in position

using wood or

some other solid material.
g. Mount the two rear legs and tighten them in the same fashion.
h. Using proper equipment, move the unit to its final location.
i. To ensure proper operation, the unit must be level. Each leg can be adjusted separately to achieve

proper leveling.

j. Install the shelf supports and the wire

shelves.

3B SET-UP / MOUNTING FOR CO1-E

Note: Units must be leveled after leg installation. Each leg is individually adjustable.

1. CO1-E1: INSTALLATION / MOUNTING 30” LEGS

a. After unpacking the unit, remove legs and any other material from inside the oven.
b. Tilt the oven onto its left side and attach the two

right legs using three ½” bolts and washers for each

leg. Tighten firmly.

c. Use proper lifting equipment to raise the unit, and while suspended attach the two left legs in the

same manner.

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2. CO1-E2: INSTALLATION / MOUNTING 6” LEGS

a. After unpacking the unit, remove legs and any other material from inside the oven.
b. Tilt the bottom oven onto its left side and attach the two mounting plates to the right underside using

½” bolts and washers and tighten firmly. Screw

c. Use proper lifting equipment to raise the unit, and while suspended attach the two left mounting

plates and legs in the same manner.

d. Use the lifting equipment

oven. Line up the sides and front and use the supplied stacking brackets, screws and lock washers
to fasten the two ovens in the back.

3. CO1-E1: ASSEMBLY OF AN OPEN RACK STAND (see Sketch “D”)
a. Slightly loosen the (12) 30” leg bolts.
b. Remove (4) inner bolts, (1) from each of the four legs, place the top right angle underneath as

shown, and tighten these (4) bolts.
c. Insert Open Rack Shelf and tighten into place
d. Position Rack Supports and tighten in place using (4) 5/16”-18 hex nuts and flat washers.

4. COH-E / CO1-E1: INSTALLATION OF CASTERS (Optional)

a. (4) Casters (2) with wheel brakes and the mounting hardware is packed and included in the

shipment if ordered.
b. Install casters
c. Install rear legs with casters on the back of the unit with the restraining plate affixed firmly between

the right rear leg & the bottom of the appliance as shown on page 9.
d. Attach the Warning Label for the restraining device on the

page 9.
e. Provide a suitable restraining chain or cable to securely tether the appliance to the building

structure. The restraining chain or cable should be of such length, that it will stop movement of the

appliance before there is any strain on the power supply cable.

with wheel brakes on the front of the unit.

to raise the top oven to the proper height, and slide it on top of the bottom

the 6” legs into the center holes.

with (8) 3/8”-16 screws, washers and nuts.

face of one of the front legs as shown on

4. ELECTRICAL CONNECTIONS

1. GENERAL INSTRUCTIONS

a. A licensed electrician must make electrical connections.
b. When installed, unit must be electrically grounded in accordance with the local codes and/or the

latest edition of the National Electrical Code ANSI/NFPA No. 70 in USA or Canadian Electrical

Code, CSA Standard C22.1, Part 1
c. Make sure electrical supply corresponds with that specified on the rating plate.
d. For single phase 2-wire or three phase 3-wire supplies, the controlling branch circuit is designed to

operate at 208-240 volts AC and is pre-wired at the factory between L1 and L2 of the field wiring

terminal block (in
e. For three phase 4-wire 230/400 Volts AC 50hz supplies, the controlling branch circuit is designed to

operate at 230 volts AC and is pre-wired at the factory between L2 and N of the field wiring terminal

block.
f. Only use copper conductors rated at 90°C.
g. All pole disconnect must be provided
h. FOR CE UNITS: The appliance must be connected by an earthing cable to all other units in the

complete installation and thence to an independent earth connection in compliance with EN 60335-

1 and/or local codes. If flexible line cordage is used to connect the equipment, it should

minimum of H07RN-F type conforming to EN60335-1, EN60335-2-42 and/or local codes.

Model kw

Voltage Phase Line 1 Line 2 Line 3 N RPM - Lo RPM - Hi RPM - Lo RPM - Hi

North America).

in Canada.

by the installer.

COH-E: POWER SUPPLY

Amps Motor - 50hz Motor - 60 hz

be a

COH-E1 9.5 208 3 27.1 27.1 25.0

8.7-10.3 220-240 3 23.4-25.5

9.5 208

8.7-10.3 220-240 1 39.5-43.1 39.5-43.1

9.5 230-400Y

9.5 230 1 41.3 - -

1 45.7 45.7 - - - - 1140 1725

3 13 13 15.2 2.2 950 1425 - -

- - - 1140 1725

23.4-25.5 21.6-23.6 - - - 1140 1725

- - - - 1140 1725

41.3 950 1425 - -

Each oven requires separate electrical connections

4

CO1-E: POWER SUPPLY

Amps Motor - 50hz Motor - 60 hz

Model kw

CO1-E1

CO11-E1 10.5 208 3 29.9 29.9 27.8 - - - 1140 1725

9.6-11.4 220-240 3 25.8-28.2 25.8-28.2

10.5 208 1

9.6-11.4 220-240 1 43.7-47.6 43.7-47.6

10.5 230-400Y 3

10.5

2. FIELD CONNECTIONS

5. INITIAL START-UP

Voltage Phase Line 1 Line 2 Line 3 N RPM - Lo RPM - Hi RPM - Lo RPM - Hi

24-26.2 - - - 1140 1725

50.6 50.6 - - - - 1140 1725

- - - - 1140 1725

14.5 14.5 16.7 2.2 950 1425 - -

230 1 45.7 - - 45.7 950 1425 - -

Each oven requires separate electrical connections

a. Remove access panel from the right side of the oven.
b. Feed power cable (supplied by the customer) through the access hole in the rear of

the oven and pull the cable to the front of the oven under the access panel where it
may be attached to the cable support

c. Following the appropriate wiring diagram conforming to the rating plate, connect the

power supply leads to the field wiring terminal block. The ground wire should be
connected to the grounding lug attached to the cable support bracket.

d. Make sure all connections are tight, and replace the access cover.

bracket.

After installation, your oven will need approximately 1 hour to burn off. The following steps must be

completed before your new oven is ready for use:

a. Place the oven in a ventilated area.

b. Open the door(s) and remove any instructions or samples shipped with the unit. Make sure

the oven
c. Close the oven door(s) and set the temperature knob to 300°F (150°C) for ½ hour.
d. After ½ hour, increase the temperature to 500°F (260°C) for at least ½ hour more. This

procedure will dry out the insulation and will help to

CAUTION: Overexposure to smoke or fumes may cause nausea and dizziness.

! !

6. SYSTEM CHECK: ROTARY CONTROL

Be sure the oven is placed in a well ventilated area.

a. Open the oven door(s).
b. Turn selector switch to high. The green indicator light near the selector switch and oven

light(s) will illuminate.

c. Close the door(s).

clockwise looking from front.
d. Press oven light switch. Oven light(s) will go on and go off as the switch is released.
e. Turn the thermostat knob. The amber indicator light near the thermostat will illuminate and

the elements will
f. Turn the timer knob and set a time of 2 minutes. At the end of 2 minutes, you will hear the

buzzer. Turn the timer knob to “0”.
g. Open the oven door(s). Oven light(s) will go on, and elements and fan will go off.
h. With the door(s) open turn the

cool down the oven.
i. Turn selector switch to “0” position.
J. Close the oven door(s).

cavity is empty and the wire shelves are properly installed.

insure best baking results.

Oven light(s) will go off and fan will run. Make sure fan is rotating

come on.

selector switch to “Cool Down” position. The fan will run to

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IMPORTANT: The oven will begin to heat as soon as the door(s) is/are closed,
the oven temperature is lower than the temperature set and the selector switch
is in the “High” or “Low” cook position.

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7. STEAM INJECTION OPTION

The solenoid valve for steam injection is mounted behind the service panel on the right hand side of
the unit on COH-E and on the back of the unit on CO1-E. It is pre-wired at the factory. The electronic
timer is pre-set at the factory.

A ¼” copper tubing
valve. Be sure to check for leaks after installation.

The thermostat indicator light will turn on and stay on while the oven is heating
up,

and will turn off when the set temperature has been reached.

The door(s) interlock switch will deactivate the motor and heating elements and
turn on the light when the door(s) is/are opened.

with a compression fitting for water connection is provided on the solenoid

OPERATING INSTRUCTIONS

1. GENERAL INSTRUCTIONS

a. This equipment has an electronic temperature control.
b. Due to increased efficiency of this oven, the temperature required for standard recipes may

be reduced 50°F (30°C).
c. Always load each shelf evenly and space pans away from each other and the back and

sides of oven to allow for maximum airflow around the product.
d. Large tempered glass window(s) and interior light(s) allow for a close check of the product

making it unnecessary to open the door(s) too frequently.
e. Products cook faster in a convection oven as compared to a conventional oven, therefore,

depending upon the product and type of pans used. Time saving may range

20% to 50%.

anywhere from

2. SYSTEM OPERATING SEQUENCE

1. COOK ONLY ROTARY CONTROL

a. Close the oven door(s).

b. Turn selector switch to “High” or “Low” position. The green indicator light near the

selector switch will be illuminated.
c. Turn the thermostat knob to the desired cooking temperature.
d. Upon reaching the set temperature, the amber indicator light near the thermostat will

turn off.
e. Load the oven with the product
f. Remove the product from the oven when done.

2. TIMED COOKING ROTARY CONTROL

a. Close the oven door(s).
b. Turn selector switch to “High” or “Low” position. The green indicator light near the

selector switch will be illuminated.
c. Turn the thermostat knob to the desired cooking temperature.
d. Upon reaching the set temperature, the amber indicator light near the thermostat will

turn off.
e. Load the oven with the
f. Turn the timer knob to the desired bake time and timer will begin counting down.
g. When the timer reaches zero, a buzzer will sound.
h. Turn the timer knob to “0” position.
I. Remove the product from the oven.

product to be cooked.

to be cooked.

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