Wisco Industries 721 User Manual

CONVECTION OVEN

1/2 SIZE PAN

MODEL 721

Convection is the ideal way to cook foods evenly & quickly. This is our largest convection oven featuring a 3 step bake process with 20 programmable presets. It utilizes pans that are 50% larger than the industry standard 1/2 sheets, allowing you to bake more in less time.

FEATURES:

• Quick, easy 3 step bake process with 20

programmable presets

• Precise temperature and adjustable time control

• High speed fan for even air distribution

• Baking temperatures ranging from 150°F - 500°F

• Stainless steel construction

• Insulated, double wall construction

• Removable door and rack supports for easy cleaning

• 20 programmable baking presets

• Unit comes with (3) cooking racks & customized

16” x 18”aluminum baking pans. These pans allow 25% more cookies than a standard pan per bake cycle.

• Can accommodate (2) 16” pizzas per bake cycle

CAPACITY:

1.0 oz. cookie puck = 20 per tray

1.5 oz. cookie puck = 16 per tray

ELECTRICAL DATA:

VOLTS: 120 AMPS: 12.5 WATTS: 1500

• Best when operated on an individual branch circuit

• 5’ NEMA 5-15P power cord

NEMA 5-15P

DIMENSIONS:

• 23½”W × 24”D × 16¼”H

• Inside Dimensions: 18¾”W × 16½”D × 10”H

• Actual Weight: 76 lbs.

SHIPPING INFORMATION:

• SHIPPING DIMENSIONS: 42”D × 48”W × 25”H

• SHIPPING WEIGHT: lbs.126

* MUST SHIP LTL FREIGHT TRUCK

ACCESSORIES:

• 00721PS3 - 3 Aluminum Baking Trays Boxed Set

• 0027258-500 - 500 Count Parchment Paper

• 0027258-1000 - 1000 Count Parchment Paper

• 0027359CR - Cooling Rack Kit

P.O. Box 10 • Oregon, WI 53575 • Ph: 608.835.3106 • Fx: 608.835.7399 • wiscoind.com • wiscomade.com

FP140191 REV: ORIG

IMPORTANT: Read the following safety and operation instructions to avoid injury and to avoid damage to equipment or property.

Plug unit into a properly grounded electrical outlet of the correct voltage, size, and plug conﬁguration for this unit. We recommend usage on an individual branch circuit of at least 15 amps for best results. Failure to do so may result in decreased performance of the oven.

The oven should never be operated on or near combustible materials. Caution should be taken because of the hot surfaces attained during use.

Exterior surfaces on unit may get hot. Use caution when touching these areas to avoid injury.

Unplug oven when not in use.

INITIAL START UP

Before you use your new Wisco 721 Convection Oven, you will want to follow the steps listed below in order to get rid of any oil, ﬁlm, etc. that may still be on the oven from the manufacturing process.

The unit may initially smoke during this process.

• Clean the oven with a mild detergent inside & out

• Set the oven’s temperature control board to 500°F

• Allow the oven to run for approximately 30 minutes

• After this cycle, you are now ready to start cooking

OPERATING INSTRUCTIONS

TEMPERATURE

Most products require lower temperatures than suggested for deck or range ovens. A standard temperature reduction of 25°F-30°F is recommended as a starting point. Actual baking will vary pending product weight and consistency. If the edges of the product are done and the center is still raw or there is extensive color variation, reduce the thermostat setting by 15°F-25°F until the desired results are achieved. Excessive temperatures will not reduce baking time.

TIME

Convection ovens generally bake 20% faster than deck or range ovens even though lower temperatures are used. Most recipes can be converted by having shorter cooking times and/or reducing your cooking temperatures.

• Frozen food products will require more time than refrigerated products

• 3 trays of food product will require more cook time than 1 tray of food product

PRODUCTS

Load the oven from the bottom up. To ensure even baking, equal amounts of similar products should be used on each pan.

P.O. Box 10 • Oregon, WI 53575 • Ph: 608.835.3106 • Fx: 608.835.7399 • wiscoind.com • wiscomade.com

OPERATING INSTRUCTIONS

• General Description: ◦ The 721 Convection oven oﬀer’s manual control of TIME and TEMPERATURE settings ◦ The TIME can be adjusted in 30 second increments ◦ The TEMPERATURE can be in 5°F increments

• Programming:

◦ Press ON/OFF ◦ To program the oven, hold PROGRAM button until a beep sounds ◦ Using arrows choose the preset you desire to program, P1, P2, P3, P4, etc. then press

SELECT

◦ Adjust your TIME, then press SELECT ◦ Adjust your TEMPERATURE ◦ Once TIME and TEMPERATURE are selected, hold PROGRAM to exit out until a beep

sounds verifying program exit mode

◦ Presets will remain in memory even if the oven is unplugged

• Baking:

◦ Choose the preset you require for baking ◦ Press START/STOP to begin PREHEAT ◦ While the oven is preheating, the PREHEAT light will ﬂash ◦ Preheating TEMPERATURE will rise in 5°F increments ◦ Once preheated insert baking goods and press START/STOP to begin the timer ◦ You can repeat process of baking by pressing START/STOP ◦ If re-baking on same preset, PREHEAT will be skipped and continue to TIME ◦ You may increase or decrease bake time in 30 second increments during the bake cycle

CLEANING INSTRUCTIONS

Unit is not waterproof. Do not submerge in water. Do not operate if unit has been submerged in water.

Unplug unit from power source and allow to cool completely before performing any maintenance or cleaning.

The inside of the oven can be cleaned with a mild detergent, water, and a soft cloth. Do not use acids or caustic products such as foaming oven cleaners.

Pans, racks and support racks are easily removable for cleaning with a mild detergent, water and soft cloth. To remove support racks, loosen the thumb screw on each side and simply pull out.

The outside of the oven can be cleaned with a mild detergent, water, and soft cloth.You may also use a stainless steel cleaner.

AVOID USING ABRASIVE/SCOURING PADS AS SOME MAY CAUSE SCRATCH MARKS ON YOUR UNIT.

P.O. Box 10 • Oregon, WI 53575 • Ph: 608.835.3106 • Fx: 608.835.7399 • wiscoind.com • wiscomade.com

PARTS LIST:

MODEL 721

ITEM # PART # DESCRIPTION

1 0027079 RACK 2 0027072L INTERNAL SUPPORT RACK (LEFT) 3 0027072R INTERNAL SUPPORT RACK (RIGHT) 4 0022691 INTERNAL SUPPORT RACK SCREW 5 0027061 COOKIE PAN 6 0027064-001SK DOOR ASSEMBLY SERVICE KIT 7 0027068-001SK CONTROL PANEL ASSEMBLY SERVICE KIT 8 0027081 DOOR GASKET 9

0027267SK

BOTTOM FOOT SERVICE KIT 10 0027184SK HEATING ELEMENT SERVICE KIT 11 0027192 HI-LIMIT THERMOSTAT 12 13

0027391 TEMPERATURE SENSOR 0027185SK BLOWER WHEEL SERVICE KIT

14 0027052SK BLOWER MOTOR SERVICE KIT (INCLUDES MOTOR & CAPACITOR) 15

008248

STRAIN RELIEF 16 0027378 POWER CORD * * *

0027258-500 0027258-1000 1000 COUNT BOXED PARCHMENT PAPER 0027359CR COOLING RACK

00721PS3 3 COOKIE PANS BOXED SET

500 COUNT PARCHMENT PAPER

P.O. Box 10 • Oregon, WI 53575 • Ph: 608.835.3106 • Fx: 608.835.8273 • wiscoind.com • wiscomade.comP.O. Box 10 • Oregon, WI 53575 • Ph: 608.835.3106 • Fx: 608.835.8273 • wiscoind.com • wiscomade.comP.O. Box 10 • Oregon, WI 53575 • Ph: 608.835.3106 • Fx: 608.835.8273 • wiscoind.com • wiscomade.com

P.O. Box 10 • Oregon, WI 53575 • Ph: 608.835.3106 • Fx: 608.835.7399 • wiscoind.com • wiscomade.com

Rev. Date.: 12/01/2017

Exploded View

Model 721

Model 721 Wiring Diagram

Blue

Black

White

Rev. Date: 06/21/2017

Replace.

temp sensor.

E1=Open circuit or

Yes

display? E1 or E2

Do any error codes

sensor. Replace.

E2=Shorted temp

Yes/No

Does motor

operate normally?

Yes

Does motor hum, spin

slowly or take awhile to

get up to operating speed

when the heating cycle is

started?

element work?

Does the heating

Yes

Is there continuity

between the white

& blue motor wires?

element leads?

Is there continuity

between the heating

Yes

Replace heating element

thermostat leads?

Is there continuity

between the HI-LIMIT

Yes

touched?

when "ON/OFF" button is

Does unit display illuminate

Yes

Yes No

Check Capacitor

replace Capacitor

connections and/or

around button edges. Work?

the "ON/OFF" button or touch

Try using your thumb to touch

Replace Control Board

Motor thermal

mins. Work?

protector may be

tripped. Let cool for 30

Yes

Replace Power Board

Replace motor

thermostat

Replace HI-LIMIT

115-130VAC?

MODEL 721: Troubleshooting

Unplug unit. Does unit

into power receptacle?

beeper sound when plugged

your meter read between

Check outlet voltage. Does

Yes

technican

Call a service

Power Board.

Check wire connections to

or broken. Possibly replace

Power Board; may be loose,

Wisco Industries 721 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual