Holman MM14 Operators Manual

10 SUNNEN DRIVE, ST. LOUIS MO 63143
PHONE [phone], FAX [phone]

U. S. AND CANADA CALL: TOLL FREE 1-800-225-3958

UNCRATING AND INSPECTION PAGE 1
ASSEMBLY AND INSTALLATION PAGE 1, 2, 3
STACKING INSTRUCTIONS PAGE 3
OPERATION PAGE 4
CLEANING PROCEDURES PAGE 4, 5
TROUBLESHOOTING GUIDE PAGE 5, 6, 7
MAINTENANCE PROCEDURES PAGE 8, 9, 10
PARTS LIST/EXPLODED VIEW PAGE 11

LOAD AND UNLOAD TRAYS PAGE 2
REMOVING THE CONVEYOR BELT PAGE 4
HEAT REFLECTOR/CRUMB TRAYS PAGE 6
HEATER TUBE & FAN MOTOR INSTALLATION PAGE 8
DRIVE SYSTEM PAGE 9
COMPONENT ARRANGEMENT PAGE 10
WIRING DIAGRAM PAGE 12
HEATER TUBE CHART PAGE 13

U:\HOLMAN MANUALS\CURRENT MODELS\QUIZNO'S
HG0341

OPERATOR'S MANUAL

HOLMAN CONVEYOR BAKERS

MODEL MM14

FOR SERVICE INFORMATION

TABLE OF CONTENTS

DRAWINGS

REVISED 06/18/04

PAGE 1

OPERATOR'S MANUAL

HOLMAN CONVEYOR BAKERS

MODEL MM14

UNCRATING AND INSPECTION

Unpack unit and components from container. Remove all visible packing material, inspect unit for damage.

If damage is discovered, file a claim immediately with the carrier that handled the shipment.
The following should be included in the container:
A. 1ea. Baking oven with heaters, tunnel extender, power supply lead and conveyor belt in place.

(NOTE): Remove heating element shipping supports.
B. 1ea. Stainless Steel Unload Tray and 1ea. Stainless Steel Load Up Tray.

ASSEMBLY AND INSTALLATION

A. Attach legs by screwing into weld nuts, as shown

ADJUSTABLE LEGS SCREWS INTO
WELD NUT ON BOTTOM OF UNIT.

B. Anti Skid pads are available at no charge and may be adhered to the foot
section of each leg to prevent sliding. Call 1-800-225-3958 for details.

CAUTION: Use of these pads are not approved by the National Sanitation Foundation.
C. Install unit in its operating position. The load & unload ends must be at least 6" from any vertical

combustible surfaces. Allow sufficient space for operating personnel.

1. Your model MM14 conveyor oven is suppiled with a six foot power supply lead. Have an
electrician connect input power to the unit in accordance with local electrical codes.

ASSEMBLY AND INSTALLATION CONT. ON PAGE 2 REVISED 7/9/01 MJC

PAGE 2

OPERATOR'S MANUAL

HOLMAN CONVEYOR BAKERS

MODEL MM14

ASSEMBLY AND INSTALLATION (CONT)
WARNING:

MAKE SURE ALL INPUT POWER IS OFF BEFORE INSTALLING/REMOVING ANY PARTS.

WARNING:

BEFORE INSTALLING UNIT(S), HAVE YOUR ELECTRICIAN CHECK WITH LOCAL POWER

COMPANY TO DETERMINE ACTUAL VOLTAGE AT JOB SITE.

WARNING:

BE ABSOLUTELY SURE THE GROUND (EARTH) CONNECTION FOR THE RECEPTACLE IS
PROPERLY WIRED. NEVER CONNECT UNIT TO POWER WITHOUT PROPER GROUND CONNECTIONS.
IMPROPER GROUND MAY RESULT IN SEVERE INJURY OR FATALITY.

E. Before applying input power to the unit(s) check heating elements for breakage, do not apply power to

the unit(s) if a broken tube is found. If no broken tubes are found apply input power by switching the
master On/Off toggle to the ON position. Turn conveyor belt speed control to the maximum setting and
check all heater tubes and conveyor for proper operation.

F. Allow approximately 5 to 8 minutes for the fan cooling system to come on, check the air intake area as

noted below and be sure that there is a sufficient flow of air into the control box.

AIR INTAKE LOCATED
ON BOTTOM CONTROL
BOX COVER.

G. If all heaters and conveyor system are operating properly, switch the master on/off switch to the OFF

position and allow unit to cool. The fan will continue to circulate cool air through out the unit until the
internal temperatures have been decreased.

H. If a problem is discovered during start up procedures, immediately switch the Master On/Off switch to

the OFF position and notify a service agent in your area. Install load and unload trays as shown.

UNLOAD TRAY

LOAD UP

TRAY

CRUMB TRAYCRUMB TRAY

ASSEMBLY AND INSTALLATION CONT. ON PAGE 3

REVISED 7/9/01 MJC

PAGE 3

A

OPERATOR'S MANUAL

HOLMAN CONVEYOR BAKERS

MODEL MM14

ASSEMBLY AND INSTALLATION (CONT.)

F. Stacking Instructions

When stacking two Holman Proveyor ovens a stacking spacer with external air
duct must

be used to prevent overheating of the control box in the top oven.

1). If cart is to be used with units, place bottom unit on cart and align leg holes of unit

to holes in top portion of cart. Insert 3/8" bolts through cart and into leg holes to secure bottom unit
to cart as shown below.

2). Place stacking spacer on top of bottom oven with internal

air duct facing up and toward the rear of

the oven.

3). Mount external

air duct on stacking spacer as shown below. External air duct must be installed for

cooling system of top unit to function properly.

4). Screw cap screws (4ea.) into leg holes on top oven.

5). Place top oven on stacking spacer. Cap screws will set into cut outs in top of stacking spacer to

lock unit into position. (NOTE) Air intake of top unit must fit over the internal air duct of

stacking spacer to allow airflow into the control box of the top oven. For stacking spacer to
work properly, both ovens must have the same belt travel direction.

BOTTOM UNIT - CAN
BE COUNTER MOUNTED
OR PLACED ON A CART

S SHOWN.

TOP UNIT - LEGS ARE
REPLACED WITH CAP SCREWS.
UNIT SITS ON TOP OF SPACER

STACKING SPACER (REQUIRED)
MOUNTS ON TOP OF LOWER OVEN

EXTERNAL AIR DUCT
MOUNTS ON SPACER

MOUNTING BOLTS FOR LOWER
UNIT SCREW INTO LEG HOLES
THROUGH CART

REVISED 7/9/01MJC

PAGE 4

OPERATOR'S MANUAL

HOLMAN CONVEYOR BAKERS

MODEL MM14

OPERATION

A. Switch Master On/Off switch to the ON position and turn Variable Speed Control to fastest time setting.
B. Allow 10 to 15 minutes for unit(s) to warm up.
C. Adjust conveyor belt speed to the desired pass time and place product on conveyor belt.

CLEANING PROCEDURES

Preventive maintenance for your Holman oven consists of the following recommendecleaning

procedures. To keep your oven in its top operating condition, these steps should be performed daily or
weekly as indicated.

WARNING:

HIGH VOLTAGES ARE PRESENT IN THESE UNITS. DISCONNECT UNIT FROM POWER

SUPPLY BEFORE SERVICING OR CLEANING UNIT.

A. Remove Load and Unload Trays (daily) as shown and wash with hot soapy water.

UNLOAD TRAY

LOAD UP

TRAY

CRUMB TRAYCRUMB TRAY

B. Remove the Crumb Trays from both load and unload ends of the oven (daily) as shown above, (DO

NOT CLEAN WITH CAUSTIC CLEANERS ).

C. For lightly soiled conveyor surfaces a damp cloth or scotch pad can be used without removing the

conveyor belt. (daily)

D. For heavily soiled conveyor surfaces disconnect and remove the conveyor as shown and soak in hot

soapy water overnight (as required).

NOTE: LUBRICATION OF DRIVE CHAIN WITH A GRAPHITE BASED LUBRICANT IS REQUIRED AS
PERIODIC MAINTENANCE. CALL HOLMAN FACTORY SERVICE DEPARTMENT FOR DETAILS.

CLEANING PROCEDURES CONT. PAGE 5

REVISED 7/9/01 MJC