Henny Penny HCH-932 Operators Manual

Henny Penny

Heated Holding Cabinet

Model HCH-930 Model HCH-932

TECHNICAL MANUAL

Model HCH-930/932

TABLE OF CONTENTS

Section Page

Section 1. TROUBLESHOOTING ....................................................................................................... 1-1

1-1. Introduction.................................................................................................................. 1-1

1-2. Safety .......................................................................................................................... 1-1

1-3. Troubleshooting............................................................................................................ 1-1

Section 2. MAINTENANCE ................................................................................................................ 2-1

2-1. Introduction.................................................................................................................. 2-1

2-2. Maintenance Hints ...................................................................................................... 2-1

2-3. Deliming Water Pan and Baffles................................................................................. 2-1

2-4. Clean Water Strainer ................................................................................................... 2-2

2-5. Replace Water Strainer ............................................................................................... 2-2

2-6. Cleaning Water Valve.................................................................................................. 2-3

2-7. Replacing Water Valve................................................................................................ 2-4

2-8. Float Switch................................................................................................................. 2-5

2-9. Solid State Delay T imer............................................................................................... 2-6

2-10. Blower ......................................................................................................................... 2-6

2-11. Heater ......................................................................................................................... 2-7

2-12. High Limit.................................................................................................................... 2-7

2-13. Thermometer ............................................................................................................... 2-8

2-14. Thermostat .................................................................................................................. 2-9

2-15. Power Switch .............................................................................................................. 2-10

2-16. Indicating Lights .......................................................................................................... 2-10

2-17. Fan............................................................................................................................... 2-11

2-18. Drawer Gasket ............................................................................................................ 2-11

2-19. Drawer and Liner Bearing Replacement .................................................................... 2-12

2-20. Wiring Diagrams.......................................................................................................... 2-13

Section 3. P AR TS INFORMATION ..................................................................................................... 3-1

3-1. Introduction.................................................................................................................. 3-1

3-2. Genuine Parts .............................................................................................................. 3-1

3-3. When Ordering Parts .................................................................................................. 3-1

3-4. Prices........................................................................................................................... 3-1

3-5. Delivery ....................................................................................................................... 3-1

3-6. Warranty...................................................................................................................... 3-1

3-7. Recommended Spare Parts for Distributors ............................................................... 3-1

FM06-019

Revised 07-30-07

206 i ii 703

Model HCH-930/932

SECTION 1. TROUBLESHOOTING

1-1. INTRODUCTION This section provides troubleshooting information in the form of an

easy to read table.

If a problem occurs during the first operation of a new cabinet, recheck the Installation Section of the Operator’s Manual.

Before troubleshooting, always recheck the Operation Section of the Operator’s manual.

1-2. SAFETY Where information is of particular importance or is safety related,

the words NOTICE, CAUTION, or WARNING are used. Their usage is described below .

SAFETY ALER T SYMBOL is used with DANGER, W ARNING, or CAUTION which indicates a personal injury type hazard.

NOTICE is used to highlight especially important information.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in pr operty damage.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

The word WARNING is used to alert you to a procedure, that if not performed properly , might cause personal injury.

1-3. TROUBLESHOOTING T o isolate a malfunction, proceed as follows:

1. Clearly define the problem or symptom and when it occurs.

2. Locate the problem in the T roubleshooting table.

3. Review all possible causes. Then, one at a time work through the list of corrections until problem is solved.

If maintenance procedures are not followed corr ectly, injuries and/or property damage could result.

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Model HCH-930/932

1-3. TROUBLESHOOTING (Continued)

Problem Cause Correction

OPERA TION

A. Product not • Drawers left open • Keep drawers closed except holding temperature to load and serve product

• Product held too long • Hold product only for recom mended times

• Thermostat set too low • Increase thermostat setting by removing the hole plug on control panel and turning thermostat shaft clockwise with a screw driver

• Heater not working • Check heater and replace if bad

• Blower not working • Check blower and replace if bad

B. Cabinet steaming • T oo much humidity inside • Remove one or more baffles or product soggy cabinet from water pan

W A TER SYSTEM

A. W ater pan not filling • Water supply off, or • Check water supply line

disconnected

• Plugged water strainer • Clean water strainer

• Corroded water pan • Clean water pan

• Faulty or corroded water valve • Clean water valve, or replace if necessary

• Faulty solid state timer • Replace solid state timer

B. W ater pan overflows • W ater pan not installed, or • Check water pan installation

installed improperly

• Corroded water pan • Clean water pan

• Faulty or corroded water valve • Clean water valve or replace if bad

• Faulty float switch • Check float switch

• Faulty solid state timer • Replace solid state timer

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Model HCH-930/932

1-3. TROUBLESHOOTING (Continued)

Problem Cause Correction

HEA TING SYSTEM

A. Unit not heating • Faulty thermostat • Check thermostat

• Faulty high limit • Check high limit

• Faulty heater • Check heater

• Faulty wiring • Check wiring for loose connections or broken wires

B. Unit not heating • Faulty blower • Check blower and replace if bad to desired temperature

• Thermometer not indicating • Check cabinet temperature with

true temperature another thermometer; if necessary ,

replace thermometer

C. Unit overheats • Faulty thermostat • Check thermostat

• Faulty blower • Check blower and replace if bad

POWER SECTION

A. W ith power switch • Unit not connected to electrical • Connect unit to electrical supply turned on, the cabinet supply is inoperative

• Open circuit breaker or fuse • Reset circuit breaker, or replace fuse

• Faulty cord or plug • Check cord and plug

• Faulty power switch • Check power switch

B. W ith power switch • Open high limit • With unit cool, check high limit turned on, the blower and fan operate, but • I f th e hi gh l imit opened because of the power light is overheating, refer back to part C off, and the unit of the Heating System trouble won’t heat shooting

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Model HCH-930/932

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Model HCH-930/932

SECTION 2. MAINTENANCE

2-1. INTRODUCTION This section provides procedures for the checkout and replacement

of the various parts used in the cabinet. Before replacing any parts, refer to the Troubleshooting section. It will aid you in determining the cause of the malfunction.

2-2. MAINTENANCE HINTS 1. You may want to use a multimeter to check the electric

components.

2. When the manual refers to the circuit being closed, the multimeter should read zero unless otherwise noted.

3. When the manual refers to the circuit being open, the multimeter will read infinity .

2-3. DELIMING WATER P AN Inspect the water pan and baffles every 10 days for lime buildup, AND BAFFLES and clean when necessary .

Step 3

Failure to keep the water pan and baffles free of lime buildup reduces the performance of the cabinet.

1. Disconnect the electrical supply to the cabinet.

Failure to disconnect power to the cabinet causes the interior of the cabinet to be “flooded” with water from the automatic water fill system.

2. Remove the top drawer from the cabinet.

3. Remove the water pan and baffles by supporting the pan with one hand and pulling out on the latches with the other hand. The water pan drops down from the ceiling.

4. Remove the 4 baffles from the water pan.

705 2-1

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