Marshall Air QQ5 User Manual

HEATED DISPLAY CABINET MARSHALL

OWNER'S MODEL QQ5 MANUAL

Supplier Name: MARSHALL AIR SYSTEMS, INC. Address: 419 Peachtree Drive South Charlotte, NC 28217 Model #: QQ5 Serial #: ———————————————— Date Received: ———————————————— Date Installed: ———————————————— Telephone #: 704-525-6230 Toll Free #: 800-722-3474 Customer Service Fax #: 704-525-6229 Service Referral #: 800-722-3474 Local Service Name: ——————————————— Local Service #: ————————————————

MODEL: QQ5

GENERAL SPECIFICATIONS

Model #: QQ5 Height: 16-1/4"

Width: 66-1/2" Depth: 21"

Electrical: 110/120 volts 17 amps

Weight: 180 IBS. Qty of 40 Watt Lights: Eight Power Cord: 8 ft. 3 wire grounding type UL rating Approvals: UL and NSF

MANUFACTURER'S INTRODUCTION

This Heated Display Cabinet features Marshall's own ThermoGlo" heating technology. Heat radiates from every square inch of the upper flat plate heating surface. This eliminates the need to clean intricate calrod, wire and reflector assemblies. A precision microprocessor-type digital display and digital "set point" temperature controller maintain consistent product temperatures.

MODEL QQ5

INSTALLATION

1. Unpack unit and remove all protective paper or plastic covering from metal parts.

2. Place cabinet on stable base. Make sure cooling air inlets, on sides of unit, are not blocked.

3. The unit should be caulked to the counter top as required by health department codes.

4. Install 40 watt plastic coated lights which were shipped loose.

5. Plug unit into an AC 120V receptacle.

CHECKLIST AND CLEANING GUIDE DAILY

OPENING CHECKLIST

1. Turn on the power switch. This will light the displays on the temperature controllers and turn on the lights. The switches next to each controller will turn on the heater for that temperature controller. The unit is ready to use after a 30 minute preheat period.

2. The temperature controller on the unit is factory set for 450°F. With the control "ON", the actual temperature is displayed. The face plate of the control is either black or gray. The set point may be verified or changed as follows:

IF BLACK: depress the set button to view the set point. To change set point, use Up/Down arrow to select new set point while holding set button down.

IF GRAY: depress the set button and RELEASE to view set point. To change set point, push "set" and, within three seconds, use Up/Down arrow to select new set point.

CAUTION: PRESS ONLY WITH SOFT PART OF FINGER -- DO NOT PUSH WITH SHARP OBJECT.

3. In normal operation, the digital controller will display a value of approximately 480°F high to 430°F low.

CLOSING CHECKLIST

1. Turn off the unit and allow it to cool for 20 minutes.

2. Pans and wire grates should be removed, washed in mild multi-purpose detergent, rinsed and sanitized.

3. Clean unit and base with a damp cloth or non-abrasive cleaner. DO NOT IMMERSE UNIT IN WATER! DO NOT USE CAUSTIC CLEANING SOLUTIONS!

4. Allow sufficient drying time before attempting to use.

MODEL QQ5

PREVENTIVE MAINTENANCE

Follow the daily schedule; there are no adjustments. The only user-replacement items are the light bulbs located under the top cover. If these fail, do the following:

1. Unplug the unit.

2. Remove the bulb(s) by carefully unscrewing them from their sockets.

3. Replace the bulb(s) with a manufacturer's approved replacement part. (See parts list page 4.)

4. Check air flow through unit by feeling for air draw at slots on the sides of the cabinet.

TROUBLE SHOOTING CHART

Identify problem in the left column and look for probable cause and solution in right hand column. Probable causes listed in the order they are most likely to happen. This sequence should be used to isolate the problem.

Problem Probable Cause Solution

1. No Light/No Heat Unplugged

Circuit breaker is tripped Cord/plug defective

2. No Light/With Heat Light bulbs burned out Wire to bulbs disconnected

3. Temperature Controller Flashing

999

4. Temperature Controller Displays

Less Than 450 °F

5. Low Product Temperature Set point too low

*Defective temperature controller or sensor Call Marshall Customer Service

* Loose sensor or defective heating unit assembly

Excessive air draft

Plug in Reset breaker - call electrician if tripped twice Call Marshall Customer Service

Unplug unit and replace bulbs Call Marshall Customer Service

Call Marshall Customer Service

Reset to 450 °F Move unit or shield draft

* NOTE: when replacing sensor, a special heat sink sealant will be present when removing failed sensor. Applying new sealant is not required;

however, be sure to utilize existing sealant when mounting new sensor.

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