Bloomfield 600 User Manual

USER'S GUIDE for

BLOOMFIELD TRADITIONAL DISPLACEMENT-TYPE

COFFEE BREWERS

Includes:

Installation

Checkout

Theory of Operation

Troubleshooting

600

p/n 86772 Rev. (-) M600 102203 cps

INTRODUCTION

The technical content of
this manual represents
current production models
as of October, 2003.
Data, specifications and
materials, and model
number designations are
subject to change at any
time without notice.

This manual is intended for use by qualified service personnel.
Bloomfield coffee brewers are intended exclusively for commercial use

and are designed expressly to brew beverage products for human
consumption. No other use is recommended or authorized by the
manufacturer or its agents.

Except as noted, this piece of equipment is made in the USA and has
American sizes on hardware. All metric conversions are approximate.

This is a general guide for this class of brewers. Examples in this
manual are provided to illustrate concepts only. Your specific application
may vary. Consult the Owner's Manual for your specific equipment.

SAFETY WARNINGS AND PRECAUTIONS

WARNING: ELECTRIC SHOCK HAZARD

All servicing requiring access to non-insulated components must be performed by qualified

service personnel. Do not open any access panels which require the use of tools unless you
are qualified to do so. Failure to heed this warning can result in electrical shock. Electrical
shock can cause death or serious Injury.

WARNING: INJURY HAZARD

All installation procedures must be performed by qualified personnel with full knowledge of all

applicable electrical and plumbing codes. Failure could result in personal injury and

property damage.

WARNING: ELECTRIC SHOCK HAZARD

Brewer must be properly grounded to prevent possible shock hazard. DO NOT assume a

plumbing line will provide such a ground.

WARNING: BURN HAZARD

This appliance dispenses very hot liquid. Serious bodily injury from scalding can occur from

contact with dispensed liquids.

CAUTION: SHOCK HAZARD

Always disconnect the brewer fro electrical power before servicing or cleaning.
DO NOT submerge electrical equipmen t in water.

Avoid contaminating electrical components with water when cleaning the cabinet surfaces.

CAUTION: BURN HAZARD

Exposed surfaces of the appliance, brew chamber and airpot ,decanter or thermal server may
be HOT to the touch, and can cause serious burns.

CAUTION: ELECTRICAL DAMAGE

DO NOT plug in or energize this appliance until all Installation Instructions are read and
followed. Damage to the brewer will occur if these instructions are not followed.

xi

TABLE OF CONTENTS

INSTALLATION PROCEDURES …………………………………….. 2
BREWER OVERALL CHECKOUT ……………………………………. 4
BREWING COFFEE …………………………………………………… 5
CLEANING INSTRUCTIONS …………………………………………. 6
THEORY OF OPERATION
WATER FLOW ………………………………………...………….… 7
HOT WATER FAUCET …………………………………………….. 8
BREW WATER TEMPERATURE CONTROL …………………… 9
TROUBLESHOOTING GUIDE
QUICK GUIDE ………………………………………………………. 10

BREW WATER SYSTEM - AUTOMATIC OPERATION .....…… 11

BREW WATER SYSTEM - POUR-OVER ……………………….. 12
FAUCET WATER SYSTEM ……………………………………….. 15
ELECTRICAL SYSTEM - BREW …………………………………. 19
ELECTRICAL SYSTEM - HEATING ……………………………… 20
ELECTRICAL SYSTEM - WARMERS ……………………………. 21
SERVICING INSTRUCTIONS
TEMPERATURE ADJUSTMENT …………………………………. 22
TIMER ADJUSTMENT ……………………………………………… 23
REMOVE TANK ……………………………………………………. 23
REPLACE THERMOSTAT ………………………………………… 23
REPLACE HEATING ELEMENT ………………………………….. 23
REPLACE FILL SOLENOID ……………………………………….. 24
CLEAN SOLENOID SCREEN ……………………………………. 24
REPLACE TIMER ASSEMBLY …………………………………… 25
REPLACE HOT WATER COIL …………………………………… 25
REPAIR HOT WATER FAUCET ………………………………….. 25
REPLACE "READY-TO-BREW" LIGHT OR BREW SWITCH …. 25
DELIME WATER TANK ……………………………………………. 26

1

INSTALLATION

READ THIS CAREFULLY BEFORE STARTING THE INSTALLATION

IMPORTANT:

To enable the installer to make
a quality installation and to
minimize installation time, the
following suggestions and tests
should be done before the
actual unit installation is started:

CAUTION:

ELECTRICAL

DO NOT plug in or energize this
appliance until all Installation
Instructions are read and
followed. Damage to the
Brewer will occur if these
instructions are not followed.

DAMAGE

CAUTION:

UNSTABLE

It is very important for safety
and for proper operation that the
brewer is level and stable when
standing in its final operating
position. Provided adjustable,
non-skid legs must be installed
at each corner of the unit.
Failure to do so will result in
movement of the brewer which
can cause personal Injury and/
or damage to brewer.

NOTE: Water supply inlet line
must mee t cer tain mini m u m
criteria to insure successful
operation of the brewer.
Bloomfield recommends 1/4"
copper tubing for installation of
less than 12 feet and 3/8" for
more than 12 feet from a 1/2"
water supply line.

EQUIPMENT HAZARD

This general information may not apply to all models. Refer to
the owners manual and any technical data sheets for your
specific equipment for additional information.

PREPARATION
Unpack the unit. Inspect all components for completeness and

condition. Ensure that all packing materials have been removed
from the unit.

Verify that the Spray Head Gasket and Spray Disk are properly
installed.
IMPORTANT: The gasket must be installed INSIDE the brew
head cup.

Verify that an adjustable leg is installed at each corner of the
brewer, and, if provided, the rubber foot is installed on each leg.

Set Brewer in its operating location. Level the Brewer. A spirit
level should be placed on the top of the unit, at the edge, as a
guide when making level adjustments.

Level the unit from left to right and front to back by turning the
adjustable feet. Be sure all four feet touch the counter to prevent
tipping.

PLUMBER’S INSTALLATION INSTRUCTIONS
Brewer should be connected to a POTABLE WATER, COLD

WATER line. Flush water line before connecting to Brewer.

DO NOT use a saddle valve with a self-piercing tap for the water
line connection. Such a tap can become restricted by waterline
debris. For systems that must use a saddle tap, shut off the main
water supply and drill a 3/16” (minimum) tap for the saddle
connection, in order to insure an ample water supply. Remember
to flush the line prior to installing the saddle.

The brewer must be installed on a water line with average
pressure between 20 PSI and 90 PSI. If your water pressure
exceeds 90 PSI at anytime, a pressure regulator must be
installed in the water supply line to limit the pressure to not more
than 90 PSI in order to avoid damage to lines and solenoid.

A water shut-off valve should be installed on the incoming water
line in a convenient location (Use a low restriction type valve,
such as a 1/4-turn ball valve, to avoid loss of water flow thru the
valve.

The provided water line strainer must be installed in the supply
line, between the shutoff valve and inlet fitting. Note FLOW
arrow marking on strainer body.

2

INSTALLATION (continued)

NSF requires that the brewer be able to be moved for cleaning
underneath. A flex line or loops of copper tubing will satisfy this
requirement. See Figure 2 below.

In some areas, local codes require a backflow preventer (check
valve) to be installed on the inlet water line. If a backflow
preventer is used, you must install a water hammer arrester in
the incoming line, between the backflow preventer and the
brewer inlet, as far away from the brewer as space will allow.
This will relieve the excessive back pressures that can cause
faucet leaks and solenoid malfunctions.

IMPORTANT:

Tank must be full of water before connecting brewer to electrical
power. Heating elements will be damaged if allowed to operate
without being fully submerged in water. Damage caused by
operating the brewer without water in the tank is NOT COVERED
BY WARRANTY.

ELECTRICIAN’S INSTALLATION INSTRUCTIONS

REFER TO ELECTRICAL SPECIFICATIONS provided in the
Owner's Manual, specification sheet, and on the nameplate.

Some models are equipped with a cord and plug. They require:

1. A circuit that meets or exceeds the electrical requirements

2. A properly installed and grounded receptacle configured
to match the brewer plug.

Some models are designed to be connected directly to the
electrical circuit. They require:

1. A circuit that meets or exceeds the electrical requirements

2. Conduit and fittings that meet applicable electrical codes.

3. The ground lug of the brewer must be connected to a suitable
electrical ground.

Water Supply Installation

NOTE: This equipment must be
installed to comply with
applicable federal, state and
local plumbing codes and
ordinances.

WARNING:

SHOCK HAZARD

Brewer must be properly
grounded to prevent possible
shock hazard. DO NOT
assume a plumbing line will
provide such a ground.
Electrical shock will cause death
or serious injury.

IMPORTANT:

Supply power must match
nameplate for voltage and
phase. Connecting to the
wrong voltage will damage the
brewer or result in decreased
performance. Such damage is
not covered by warranty.

IMPORTANT:

The ground prong of the plug is
part of a system designed to
protect you from electrical shock
in the event of internal damage.
Never cut off the ground prong
nor twist a blade to fit an
existing receptacle. Contact a
licensed electrician to install the
proper circuit and receptacle.

GROUND

PIN

NEMA 5-15P

PLUG

Typical Plug/Receptacle
Configuration

NEMA 5-15R

RECEPT ACLE

3

BREWER OVERALL CHECK-OUT

CAUTION:

SHOCK HAZARD

Always disconnect the brewer
fro electrical power before
servicing or cleaning.

CAUTION:

BURN HAZARD

Brew water is extremely hot.
Exposed surfaces of the brew
chamber and airpot ,decanter
or thermal server may be HOT
to the touch, and can cause
serious burns.

If any problems are
encountered with the operation
of this brewer, please refer to
the TROUBLESHOOTING
GUIDE, beginning on page 10.

IMPORTANT:
When operating the bre wer for
the first time, the tank must be
filled with water BEFORE
connecting to electric power.
Place an empty container under
the brew head, then pour
water into the pour-over
opening until water flows from
the brew head. When all
dripping stops, remove and
empty the container. It is now
safe to connect brewer to
electric power.

BREWER CHECK-OUT

These checks should be performed:

• When the brewer is installed

• During any service call on the brewer

• During any subsequent follow-up call

IMPORTANT:

Tank must be full of water before pressing POW ER key "
Heating elements will be damaged if allowed to operate without
being fully submerged in water.
Damage caused by operating the brewer without water in the tank
is NOT COVERED BY WARRANTY.

1. Clean spray disk

2. Check spray disk gasket. Be sure it is installed inside of the
brew head cup.

3. Check operation of Power Switch(es), Brew Switch and Brew
Cancel Switch.

4. Check the brew temperature at the brew head:
a. Install a paper filter in the brew chamber, then install the
brew chamber under the brew head. Set an empty
container in position under the brew head.
b. Withdraw the brew chamber slightly, and insert the
temperature probe of a digital thermometer into the brew
chamber so that the tip is near the discharge hole.
Be sure the brewer is up to temperature ( "ready-to-brew"
light is on), then start a brew.
c. At this location, temperature should be near
190ºF for coffee
195ºF for tea

5. Check the water delivery volume.

6. Where applicable, check operation of warmers and warmer
switches.

7. Disconnect brewer from electric power. Remove top panel and
check hoses and connections for water leaks.

8. Where applicable, check hot water faucet for operation and
leaks.

ON".

Fill Water Tank

4

BREWING COFFEE

PREPARATION

Place one (1) genuine Bloomfield
paper filter in the brew chamber.

PAPER
FILTER

Add a pre-measured amount of
fresh coffee grounds.
Gently shake the brew chamber to
level the bed of grounds. Slide the

BREW
CHAMBER

brew chamber into place under the
brew head.

POUR-OVER OPERATION

BE sure “READY TO BREW” light is lit.

Brew Chamber

Place the appropriate EMPTY decanter in place under the brew
chamber.

Fill a decanter with tap water. Lift the pour-over cover and pour the
entire contents of the decanter into the pour-over opening, which
will fill the basin.

Water from the basin will displace a like amount of heated water
from the tank. The hot water will be forced into the brew head
where it will spray over the bed of grounds. Freshly brewed coffee
will begin to fill the container under the brew chamber. When the
flow and all dripping stops, the coffee is ready to serve.

Discard the contents of the brew chamber. Rinse the brew
chamber in a sink. When the ”READY TO BREW” light glows, the
brewer is ready for another brew cycle.

AUTOMATIC OPERATION
BE sure “READY TO BREW” light is lit.
Place an EMPTY decanter in place under the brew chamber.
Press the “BREW” switch. The solenoid will open for an amount of

time determined by the timer setting, admitting a measured quan tity
of water into the basin.

Water from the basin will displace a like amount of heated water
from the tank. The hot water will be forced into the brew head
where it will spray over the bed of grounds. Freshly brewed coffee
will begin to fill the decanter under the brew chamber. When the
coffee flow and all dripping stops, the coffee is ready to serve.

Discard the contents of the brew chamber and rinse it in a sink.
When the ”READY TO BREW” light glows, the brewer is ready
for another brew cycle.

NOTE: Water for the hot water faucet is heated in a coil inside of
the water tank. Use of the faucet will not affect the volume of water
delivered for a brew. However, overuse of the faucet during a
brew may lower the temperature of the brew water.

CAUTION:
Burn Hazard

Exposed surfaces of the
brewer, brew chamber and
decanter may be HOT to
the touch, and can cause
serious burns.

CAUTION:
Burn Hazard

To avoid splashing or over­flowing hot liquids,
ALWAYS place an empty
decanter under the brew
chamber before starting
the brew cycle. Failure to
comply can cause serious
burns.

CAUTION:
Burn Hazard

After a brew cycle, brew
chamber contents are
HOT. Remove the brew
chamber and dispose of
used grounds with care.
Failure to comply can
cause serious burns.

IMPORTANT:
Before operating the
brewer for the first time,
the tank must be filled with
water BEFORE connecting
to electric power.
Place an empty decanter
under the brew head, then
pour decanters of water
into the pour-over opening
until water flows from the
brew head.

5

CLEANING INSTRUCTIONS

CAUTION:

BURN HAZARD

Brewing and serving
temperatures of coffee are
extremely hot.
Hot coffee will cause
serious skin burns.

CAUTION:

SHOCK HAZARD

Do not submerge or immerse
brewer in water.

IMPORTANT:

DO NOT use steel wool, sharp
objects, or caustic, abrasive or
chlorinated cleansers to clean
the brewer or airpots.

Cleaning

PROCEDURE: Clean Coffee Brewer

PRECAUTIONS: Disconnect brewer from electric power.
Allow brewer to cool.

FREQUENCY: Daily
TOOLS: Mild Detergent, Clean Soft Cloth or Sponge

Bristle Brush, Bottle Brush

1. Disconnect brewer from electric power.
Allow brewer to cool before cleaning.

2. Remove airpot.

3. Remove and empty brew chamber.

4. Remove the spray disk from the brew head (See figure 7):
Press up on the spray disk ears, then turn the disk to the left
to unlatch. Remove the gasket from inside the brew head.

5. Wipe inside of brew head and area around the brew head
with a soft clean cloth or sponge moistened with clean water.

6. Wash the spray disk in a sink using warm water and a mild
detergent. A bristle brush may be used to clear clogged
spray holes. Rinse the spray disk with clean water and allow
to air dry.

7. Wash the brew chamber in a sink using warm water and a
mild detergent. A bristle brush may be used to clean the
inside. Rinse with clean water and allow to air dry.

8. Wipe the exterior of the brewer with a soft clean cloth or
sponge moistened with clean water.

10. Reinstall the gasket INSIDE the brew head, then reinstall the
spray disk.

11. Reinstall the brew chamber.

12. DO NOT submerge airpots in water. Clean airpots by filling
with warm soapy water. Scrub the inside with a bottle brush.
Empty and rinse with clean water. Wipe the exterior with a
soft clean cloth or sponge moistened with clean water. Invert
and allow to air dry.

Procedure is complete

6

WATER FLOW

THEORY OF OPERATION

Typical Brew Water Delivery System

POUR-OVER FEATURE

Pouring any amount of cold water into the
pour-over opening and into the basin pan
forces an identical amount of hot water out
of the tank and through the spray head in to
the brew chamber.

AUTOMATIC OP ERATION
Pressing BREW button energizes the

solenoid valve, allowing water from an
external water supply to flow into the basin
pan and then into the hot water tank. This
forces an identical amount of hot water out
of the tank and through the spray head in to
the brew chamber

The solenoid uses a flow control device so
that flow is consistent between 20 p.s.i. and
90 p.s.i.

Length of time the solenoid is open is
controlled by the timer.

Fig. 5 Water Flow Diagram

7