AMW 67710E Handbuch

1104 Form # AM-320-02

American Metal Ware®Coffee Urn

Installation, Operation & Service Manual

For

Model 67710E

Electric Steam

Special Features

After completing installation and set-up, the

equipment owner should keep this manual for

future reference.

PRINTED IN USA

Grindmaster Corporation™

4003 Collins Lane

Louisville, Kentucky 40245 USA

(502) 425-4776

(800) 695-4500 (USA and Canada only)

(800) 568-5715 (technical service only)

FAX: (502) 425-4664

www.grindmaster.com

TABLE OF CONTENTS

Warning Labels.......................................2

Introduction.............................................3

About the 67710E Coffee Urn..................4

General Description.....................4

Features of This Model................4

Pre-Installation........................................5

Package Contents.......................5

Rough In Drawing....................................6

Installation...............................................7

Initial Considerations...................7

Complete the Hook Up................8

Initial Start Up..............................9

Operation..............................................10

Load the Coffee.........................10

Start the Brew............................10

After the Brew is Finished..........11

Adjustments..........................................12

Bypass Adjustment....................12

Thermostat Adjustment..............12

Timer Adjustment.......................13

Flow Rate Adjustment................13

Fill Rate Adjustment...................14

Cleaning................................................15

After Each Use...........................15

Each Day...................................15

Semi-Weekly..............................15

Wiring Diagram......................................16

American Metal Ware 67710E Coffee Urn Page 2

Introduction

Thank you for purchasing this American Metal Ware product. American Metal Ware has

been building beverage equipment since 1883. This product has been designed for the

quality and cost conscious restaurant operator in mind. Our metal craftsmen proudly build

each product with great attention to detail.

This manual has been prepared to compliment your equipment. Take a few minutes to

become familiar with the equipment before you start operation. Within, you will find

information on the set-up, operation, and maintenance of the equipment. This information

will help you use this equipment to produce the best possible beverage product.

The installation and setup instructions will help get the equipment running quickly. You will

also learn the functions of all controls. Follow the cleaning and maintenance instructions

to ensure a long life for your equipment and to preserve its attractive appearance. If this

product requires service or adjustment, see the Adjustment section of this manual. This

section will explain the safest and easiest procedures for finding and making adjustments.

A repair parts section will help you identify the parts you need.

Page 3 American Metal Ware 67710E Coffee Urn

About the 67710E Coffee Urn

General Description

This coffee urn has been engineered to suit the special needs of the prison environment.

This section highlights the characteristics and special features of the product.

The urn is a large capacity, high-speed, coffee brewing and holding unit. The body is

constructed of two walls of stainless steel with insulation between. Inside is a large

capacity water tank where the brew is heated. Two ten gallon liners fit into that tank. Each

liner has its own controls which start and stop the brew process with the push of a button.

A pump draws water from the tank and sprays it over the grounds which are placed above

the liners. Faucets on the front of the urn allow the dispense of coffee from each liner and

hot water from the tank. A control automatically refills the tank as water is drawn off. A

thermostat regulates the temperature by switching electric heating elements inside the tank.

Features of This Model

Safety and Security

• No parts removable by hand.

• No breakable parts.

• Minimization of screw fastened parts on exterior. All remaining screws are one way.

• Lockable covers over control compartment and brewing area. When locked, there is

no access to hot water or coffee except through faucet.

• Security faucets with wrench tight, metal bonnets and self closing handles.

• Insulated body stays cooler.

• Lock our brew controls.

• Drain handle located inside control enclosure.

• Flanged feet may be bolted to table.

Operation

• Fully automatic brew cycle with automatic air agitation.

• Adjustable timer, by-pass, sprayover rate, and thermostat.

• Sensors indicate coffee in liner - no gauge glass.

• Automatic Refill and Low-Water, Heater Cutoff.

• Stainless steel mesh coffee filter.

• High Speed Brewing - Brew in both liners simultaneously.

Maintenance

• All components are easily accessible in the side control enclosure.

• Replace most components without draining the urn.

• Durable, easy to clean, 304 stainless steel construction.

American Metal Ware 67710E Coffee Urn Page 4

Page 5 American Metal Ware 67710E Coffee Urn

Pre-Installation

Package Contents

This coffee brewer should be packed in a box on a wooden skid. Check to make sure the

box contains the following parts:

1) The Urn

2) Two stainless steel mesh brew baskets.

3) Three pad-locks and one set of three identical keys.

4) This instruction manual.

5) Two clamps for pump tubing - in the control enclosure.

6) Two sets of two keys to turn on brew controls.

The next page shows a rough-in drawing, number 094-004. Refer to this drawing for

information required for installation. The drawing shows the locations of the electric and

water inlets, and some important dimensions of the brewer.

American Metal Ware 67710E Coffee Urn Page 6

If you still need help, call our service department at (800) 568-5715 Ext. 3 or (502) 425-4776 (Monday through Friday, 8 am - 6 pm EST) or an authorized

service center in your area. Please have the model and serial numbers ready so that accurate information may be given.

Prio authorization must be obtained from Grindmaster Corporation’s Technical Services Department for all warranty claims.

Page 7 American Metal Ware 67710E Coffee Urn

Installation

Initial Considerations

Unpack the Urn

Remove the cardboard carton from around the urn. Be careful not to scratch the stainless

steel with any tools. Unwrap any plastic wrapped items. Open both liner covers and

remove materials inside the liners. Remove the control enclosure to expose electric

connections.

Select a sight for the urn

The Urn must be placed on a sturdy, leveled table. The table must have a tray to collect

liquid from the faucets. To set up initially and adjust later, the installer must have access to

the side of the urn where the controls are located. Be sure to allow for space in the sight

selection.

Water and Electric

The electric ratings are printed on the nameplate of the urn and on the rough-in drawing.

The urn must be connected to a branch circuit with its own shut-off.

A water line must be run to the connection location. The urn has a 3/8” NPT water inlet as

shown on the rough-in drawing. Use 3/8” OD copper tubing for the connection. For

especially long runs where pressure drop is likely to be a problem, use larger tubing. The

water line should have a shut-off valve near the urn. The water pressure at the urn should

be between 30 and 70 psig.

Softened water does not make good coffee. For best results, use cold tap water. Cold

water will require a recovery time between brews. You may connect hot water if it is

necessary to brew in both liners continuously. Chlorine and lime in water are the biggest

problems in the operation of coffee brewers. Be sure the water is free of chlorine which will

deteriorate the stainless steel. Filters may be purchased to help control lime. American

Metal Ware’s warranty does not cover water problems.

Place Urn

Position the urn on the table in its operating position. Level the urn front to back and left to

right. The height of the feet is adjustable for this purpose.

Complete the Hook Up

Water Hook-Up

The water connection is on the back of the urn’s control enclosure - see figure 1.

WARNING, ELECTRIC SHOCK HAZARD

INSTALLATION SHOULD BE PERFORMED BY QUALIFIED

SERVICE PERSONNEL ONLY.

American Metal Ware 67710E Coffee Urn Page 8

It is a 3/8 Female NPT connection.

See the rough-in drawing for details on

location. You may wish to install a

water line filter to inhibit lime deposits

especially if your area has particularly

hard water. Lime, which precipitates as

the water is heated, will eventually

build up inside the urn.

Electric Hook-Up

Before starting any work, be sure the

electric line has been turned off. Check

the nameplate on the urn for the elec-

tric ratings of the urn. A wiring diagram

is also provided inside the control

enclosure and in this manual. Use the

appropriate circuit breaker and cord for

the electric service that this urn that

requires. Secure the cord to the rear of

the control enclosure with the

appropriate cord grip bushing. The hole

for electric connection is located on the

rear of the urn’s control enclosure as

shown in figure 1 and on the rough-in

drawing.

Wire the cord to the terminal block and

the ground connection shown in figure

2. Be sure the connection is secure

and no strands touch adjacent wires.

Figure 1, Service Hookup Locations

Figure 2, Terminal Block

Electric Inlet

3/8” FPT

Water

Inlet

Page 9 American Metal Ware 67710E Coffee Urn

Initial Start Up

Now that the brewer is connected, it can be started and checked.

• Leave the access cover open.

• Turn on the water supply.

• Turn on the electricity to the urn.

The urn will now begin to fill. The heaters should still be off. When the water level is above

the heaters, the contactor will close to turn on the heaters.

Check for leaks in the water connection and inside the control enclosure. Assuming all is

working correctly, close the control enclosure and allow to finish filling. An indicator light

labeled FILLING is lit while the fill valve is open. When the light turns off, the urn is full.

The urn will take approximately 15 minutes to fill.

If cold water is used, the heat-up time is approximately 30 minutes depending on the

electric ratings of the urn. An indicator light labeled WATER HOT will turn on when the

heaters have shut off.

American Metal Ware 67710E Coffee Urn Page 10

Operation

Now that the urn has been installed and started up, it is ready for operations. This section

describes the brew process from start to finish. Before brewing the first batch of coffee,

follow the procedure outlined here to brew an initial batch of water only into each liner. This

will rinse the components and set the gaskets and seals.

Load the Coffee

•

Start the Brew

•

Remove the pad lock which secures the liner cover over the liner into which you want to

brew.

Lift the cover to expose the brew basket. Note that the brew basket has a mesh bottom

so filter paper is not required.

If there are used grounds in the basket, dispose of them and rinse the basket

Fill the brew basket with the proper

amount of ground coffee to brew

ten gallons. Pour the coffee directly

into the basket - do not use filter

paper. See the following section for

instructions on the amount and grind

of coffee.

Check the liner. The liner should be

empty and clean before brewing a

batch. If the liner is not empty, it

will overflow when brewing.

Place the brew basket over the liner

and close the lid. You may padlock

the lid at this time to prevent

tampering.

Turn the brew lock key to ON for

the liner you are brewing to.

Check the WATER HOT light to be

sure the water is up to temperature.

If the light is off, wait a few

moments for the urn to finish

heating.

Be certain to close the cover over

the liner you wish to use.

Press the START switch for the

liner you are brewing to.

Figure 3, Brew Controls

WATER HOT

FILLING

COFFEE IN LINER

BREW LOCK

BREW LIGHT

START

STOP

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