Middleby Marshall Oven HB4Y User Manual

Application

CTX heavy-duty, energy-efficient
conveyor ovens are designed for direct
baking on the conveyor belt, thereby
producing a hearth bake product with
distinctive results, which are excellent for
pizza, pita breads and rolls.

General Information

Heavy-duty, electric, conveyor oven is
designed to be mounted on a modular
base up to four decks high. Oven
chamber is equipped with 18" wide, high­carbon steel, wire mesh hearth belt. The
oven is equipped with pre-programmed
self-cleaning cycle. Overall dimensions
are 92"W x 35

1

⁄2"D x 14"H. The oven

chamber is 50"W x 18"D x 5

1

⁄2"H.

Construction

The frame is constructed of 14-gauge
steel and reinforced structural steel
welded together. Walls and supporting
structure are built of 16-gauge aluminized
steel. The base assembly is constructed
of 10-gauge steel. The frame and base
assembly have a black enamel finish.
Infrared heat emitters are enclosed in high
strength thermal conductive steel plates
and are placed above and below the oven
chamber. The high temperature bearings

have excellent wear characteristics, and
are self-lubricating and self-aligning.

Insulation

The oven is fully insulated with 3" of
insulation.

Electrical

Ovens can be ordered for 208VAC or
230VAC electrical utilities. The total power
input on 208VAC is 18.0kW; 230VAC is

18.0kW. The average operating power
input is 8.4kW for 208VAC and 6.45kW
for 240VAC. Ovens are wired for 3-phase
electrical connection on 208 and 230VAC.
An electrical cord knock-out is provided at
the rear on the exit side of the oven along
with an access panel for making electrical
connections.

Heating

Heating is accomplished with six far
infrared emitters, three above and three
below the oven chamber.

Controls

A programmable microprocessor controls
the temperature from 200° to 950°F, and
the cook time from 1.2 to 240 minutes.
The oven can be controlled in three upper

and three lower zones. Thermal sensors,
located on the contactor and control panel
compartments, will give a warning if either
control gets too warm. The solid state
relays are specially designed for this
application and are high temperature
controls. The control areas have a fan
filter to keep the area around the motor
clean. There is also a standby mode for
energy conservation.

MenuSelect

®

The patented MenuSelect®feature allows
the operator to preset up to six different
time and temperature combinations into
the control that can be recalled by
pressing the appropriate preset key, then
the computer automatically adjusts time
(belt speed) and temperatures. A ready
message is displayed when the desired
temperatures are reached.

Agency Data

The Hearth Bake 4 (HB4) is listed by
Underwriters’ Laboratories, Inc., and NSF.

Warranty

Warranted for one year covering parts
and labor under the “No Quibble
Warranty”. USA only.

Electrical Ordering Information*

❐ 208VAC, 3-Phase
❐ 230VAC, 3-Phase

❐ 380-415V, 3-Phase, Non-agency

available
*Consult the electrical data on the rear

side of this specification sheet for
connected kW and amperage loading
representing your electrical utility.

Accessories

❐ ACST40SH - Base Assembly, 24"
❐ ACST40TL - Base Assembly, 36"
❐ ACHCCTXZ - Set of Two Heat Curtains
❐ ACET - Exit Tray, 15"
❐ ACETL - Exit Tray, 22

1

⁄2"

❐ ACSKZ4 - Service Kit
❐ ACSKHBI - Service Kit HB International
❐ ACSBHB4 - Stacking Bracket/Insulating

Panel

Foodservice Equipment

Job_________ Item#_________

Conveyor Oven

Hearth Bake 4 (HB4) with MenuSelect

®

Form 2204

HB4 - Two Decks

On Optional 24" Base.

Infrared Conveyor Ovens

A MIDDLEBY COMPANY

1400 Toastmaster Drive
Elgin, Illinois 60120 USA
[phone] Fax: [phone]
www.middleby.com

Middleby
Marshall

We reserve the right to change specifications and product design
without notice. Such revisions do not entitle the buyer to
corresponding changes, improvements, additions or replacements
for previously purchased equipment.

Conveyor Oven

Hearth Bake 4 (HB4)
with MenuSelect

®

ALLOW 33" (838.2) FROM
THIS END TO SIDE WALL

FIELD

WIRING

BOX

7.5"

(190.5)

ALLOW 8.5" (215.9)

MINIMUM FROM THIS

SURFACE TO BACK WALL

18"

(457.2)

INFEED

BELT LENGTH

77"

(1955.8)

92"

(2336.8)

EXIT

22.5"

(571.5)

7.5"

(190.5)

{

11.75" WITH

(298.45) INSULATED PANEL

10.75" WITHOUT

(273.05) INSULATED PANEL

24"

(609.6)

OR
36"

(914.4)

BELT LINE

BASE

19"

(482.6)

50"

(1270)

22.5"

(571.5)

14"

(355.6)

10.5"

(266.7)

6.5"

(165.1)

6"

(152.4)

37.5"

(952.5)

23"

(584.2)

6"

(152.4)

2.703"

(68.658)

WITH

CURTAIN

IN

PLACE

CONTROL

PANEL

35.5"

(901.7)

5.5"

(139.7)

11"

(279.4)

11"

(279.4)

END VIEW

SIDE VIEW

TOP VIEW

NOTE: ALL FIGURES IN PARENTHESES ARE IN MILLIMETERS

1400 Toastmaster Drive, Elgin, IL 60120-9272 USA • [phone] • Fax: [phone]

www.middleby.com

Printed in U.S.A. 5/99 Form 2204

AVG

MODEL CONNECTED OPERATING CONNECTED LOAD

NO. VOLTS PHASE Hz kW kW L1 L2 L3

HB4 208 3 50/60 18.0 8.40 52 52 52
HB4 230 3

50/60

17.0 6.45 45 45 45

HB4Y 380 3

50

13.3 5.7 25.0 27 25.0

HB4Y 415 3

50

20.1 12 27.5 30 27

ELECTRICAL DATA

SHIPPING WEIGHTS OVEN - SHIPPING DIMENSIONS

NET WEIGHT OVEN OVEN 24" BASE 36" BASE LENGTH WIDTH HEIGHT (without base)

500 lbs. 620 lbs. 160 lbs. 190 lbs. 92" 35.5" 14"

(2336.8) (901.7) (355.6)

DIMENSIONS