Bunn H5M User Manual

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OPERATING & SERVICE MANUAL

BUNN-O-MATIC CORPORATION

POST OFFICE BOX 3227

SPRINGFIELD, ILLINOIS 62708-3227

PHONE: (217) 529-6601 FAX: (217) 529-6644

10267.0000D 7/00 © 1988 BUNN-O-MATIC CORPORATION

CONTENTS

Introduction .................................................

2

Warranty ......................................................

2

User Notices ................................................

3

Electrical Requirements ...............................

4

Plumbing Requirements ..............................

4

Initial Set-Up ................................................

5

Draining the Dispenser ................................

5

Cleaning .......................................................

5

Troubleshooting ..........................................

6

Service .........................................................

9

Wiring Schematics.....................................

19

INTRODUCTION

This equipment heats and dispenses water on demand for beverages and cooking purposes. This equipment is for indoor use, either wall-mounted or on a sturdy counter or shelf.

WARRANTY

Bunn-O-Matic Corp. (“Bunn”) warrants the equipment manufactured by it to be commercially free from defects in material and workmanship existing at the time of manufacture and appearing within one year from the date of installation. In addition:

1.) Bunn warrants electronic circuit and/or control boards to be commercially free from defects in material and workmanship for two years from the date of installation.

2.) Bunn warrants the compressor on refrigeration equipment to be commercially free from defects in material and workmanship for two years from the date of installation.

3.) Bunn warrants that the grinding burrs on coffee grinding equipment will grind coffee to meet original factory screen sieve analysis for three years from date of installation or for 30,000 pounds of coffee, whichever comes first.

This warranty does not apply to any equipment, component or part that was not manufactured by Bunn or that, in Bunn’s judgement, has been affected by misuse, neglect, alteration, improper installation or operation, improper maintenance or repair, damage or casualty.

THE FOREGOING WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTY, WRITTEN OR ORAL, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF EITHER MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. The agents, dealers or employees of Bunn are not authorized to make modifications to this warranty or to make additional warranties that are binding on Bunn. Accordingly, statements by such individuals, whether oral or written, do not constitute warranties and should not be relied upon.

The Buyer shall give Bunn prompt notice of any claim to be made under this warranty by telephone at (217) 529-6601 or by writing to Post Office Box 3227, Springfield, Illinois, 62708-3227. If requested by Bunn, the Buyer shall ship the defective equipment prepaid to an authorized Bunn service location. If Bunn determines, in its sole discretion, that the equipment does not conform to the warranty, Bunn shall repair the equipment with no charge for parts during the warranty period and no charge for labor by a Bunn Authorized Service Representative during the warranty period. If Bunn determines that repair is not feasible, Bunn shall, at its sole option, replace the equipment or refund the purchase price for the equipment.

THE BUYER’S REMEDY AGAINST BUNN FOR THE BREACH OF ANY OBLIGATION ARISING OUT OF THE SALE

OF THIS EQUIPMENT, WHETHER DERIVED FROM WARRANTY OR OTHERWISE, SHALL BE LIMITED, AS SPECIFIED HEREIN, TO REPAIR OR, AT BUNN’S SOLE OPTION, REPLACEMENT OR REFUND.

In no event shall Bunn be liable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or services, or any other special, incidental or consequential damages.

2

10267 071900

 

USER NOTICES

The notices on this dispenser should be kept in good condition. Replace unreadable or damaged labels.

00656.0000

 

3

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12593.0000

10044.0000

ELECTRICAL REQUIREMENTS

CAUTION - The dispenser must be disconnected from the power source until specified in Initial Set-Up.

The H5M dispenser requires 2-wire, grounded service rated 120, 208, or 240 volts ac, 20 amp, single phase. The H5MA, 230V-CE dispenser requires 2-wire, grounded service rated 230 volts ac, 40 amp, single phase, 50/ 60Hz. (Refer to the dispenser’s dataplate for exact voltage requirement.)

Electrical Hook-Up

WHITE

NEUTRAL 120V.A.C.

L1 BLACK

L2 RED

208 or 240V.A.C.

L1 BLACK

CAUTION – Improper electrical installation will damage electronic components.

1.An electrician must provide electrical service as specified.

2.Using a voltmeter, check the voltage and color coding of each conductor at the electrical source.

3.Remove the upper and lower rear panels. Turn the knob of the thermostat to the “OFF” position (fully counterclockwise).

4.Install a strain relief and the proper electrical wiring to the terminal block.

5.Connect the dispenser to the power source and verify the voltage at the terminal block before proceeding. Reinstall both rear panels.

6.If plumbing is to be hooked-up later be sure the dispenser is disconnected from the power source. If Plumbing has been hooked-up, the dispenser is ready for

Initial Set-Up.

PLUMBING REQUIREMENTS

This dispenser must be connected to a COLD WATER system with operating pressure between 20 and 90 psi (138 and 620 kPa)from a 12" or larger supply line. A shut-off valve should be installed in the line before the dispenser. Install a regulator in the line when pressure is greater than 90 psi (620 kPa) to reduce it to 50 psi (345 kPa). The water inlet fitting is 14" flare.

NOTE - Bunn-O-Matic recommends 14" copper tubing for installations of less than 25 feet and 38" for more than 25 feet from the 12" water supply line. At least 18 inches of an FDA approved flexible beverage tubing, such as reinforced braided polyethylene or silicone, before the dispenser will facilitate movement to clean the countertop. It can be purchased direct from Bunn-O-Matic (part number 00326-0000). Bunn-O-Matic does not recommend the use of a saddle valve to install the dispenser. The size and shape of the hole made in the supply line by this type of device may restrict water flow.

This equipment must be installed to comply with the Basic Plumbing Code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration (FDA).

Plumbing Hook-Up

1.Flush the water line and securely attach it to the flare fitting on the rear of the dispenser.

2.Turn-on the water supply.

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10267 071900

INITIAL SET-UP

CAUTION - The dispenser must be disconnected from the power source throughout the initial set-up, except when specified in the instructions.

1.Remove the upper rear panel and rotate the control thermostat

 

knob fully counterclockwise to the “OFF” position and replace

 

 

the panel.

 

2.

Connect the dispenser to the power source and turn-on the water

 

 

supply.

 

3.

Water will automatically flow into the tank to the proper level

 

 

and shut-off. This will take approximately 10 minutes.

 

4.

Disconnect the dispenser from the power source, remove the

 

 

upper rear panel and place the control thermostat knob fully

 

 

clockwise to the “ON” position, and replace the panel.

 

5.

Connect the dispenser to the power source and wait approxi-

 

 

mately twenty minutes for the water in the tank to heat.

 

6.

On models with ready indicator, the indicator will glow when the

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proper water temperature for use is achieved.

 

DRAINING THE DISPENSER

CAUTION - The dispenser must be disconnected from the power source throughout these steps.

1.Disconnect the dispenser from the power source.

2.Shut-off and disconnect the incoming water supply

3.Remove the 4-40 screws at the sides of the top panel.

4.Gently remove one of the grommets from the tank lid.

5.Insert a tube to the bottom of the tank and syphon ALL of the water out. Bunn-O-Matic has a syphon assembly available (#12440.0000) for this purpose.

NOTE - The dispenser must be full using the INITIAL SET-UP steps before reconnecting to the power source.

CLEANING

The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment.

WALL MOUNTED INSTALLATION

If the dispenser is wall mounted, the bottom of the dispenser should be at the same height as a counter or table top. Use B.O.M. part #12542.0000 for side mounted Wall Bracket Kit or # 13125.0001 for front mounted Wall Bracket Kit .

SUPPORT FOR LARGE RECEPTACLES

CAUTION: If the dispenser is to be used with larger receptacles such as pitchers or pots, those receptacles must be adequately supported during dispensing of hot water to avoid spillage of very hot water. This support may be provided by a table or counter top, or use B.O.M. part #12599.0000 Shelf Kit

5

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TROUBLESHOOTING

A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department.

Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel.

All electronic components have 120 – 240 volt ac and low voltage dc potential on their terminals. Shorting of terminals or the application of external voltages may result in board failure.

Intermittent operation of electronic circuit boards is unlikely. Board failure will normally be permanent. If an intermittent condition is encountered, the cause will likely be a switch contact or a loose connection at a terminal or crimp.

Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are energized for more than ten minutes without a supply of water.

The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened. This will help to avoid twists and kinks in the tubing.

Make certain that all plumbing connections are sealed and electrical connections tight and isolated.

This dispenser is heated at all times. Keep away from combustibles.

WARNING

Exercise extreme caution when servicing electrical equipment.

Disconnect the dispenser from the power source when servicing, except when electrical tests are specified.

Follow recommended service procedures

Replace all protective shields or safety notices

Problem

Probable Cause

Remedy

Equipment will not operate.

1. No power or incorrect voltage

(A) Check the terminal block for the cor-

 

 

rect voltage. It should be:

 

 

a.) 100 to 120 volts ac across the black and

 

 

white terminals for 100 to 120 volt mod-

 

 

els,

 

 

b.) 200 to 240 volts ac across the red and

 

 

black terminals for 200 to 240 volt models

 

 

c.) 230 volts ac across the red and black

 

 

terminals for 230 volt models.

 

 

(B) Check circuit breakers or fuses.

 

2. Safety overflow switch

Refer to Service – safety overflow switch

 

 

for testing procedures. See page 11.

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