611
OWNERS MANUAL
For
WELLS BLOOMFIELD, LLC
2 ERIK CIRCLE, P. O. Box 280 Verdi, NV 89439
telephone: 775-689-5707
fax: 775-689-5976
MODULAR
BREWING SYSTEMS
MODELS
POUR OVER AUTOMATIC AUTOMATIC
UNITS
UNITS
UNITS
WITH FAUCET
8542
8543
8571
8541
8573
8540
8572
8574
Includes:
Installation
Use & Care
Servicing Instructions
Model 8574 Brewer
with optional
8900-Series Glass Decanters
PRINTED IN UNITED STATES OF AMERICA
p/n 75804 Rev. F ECN-13387
M611 071115 cps
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TABLE OF CONTENTS
WARRANTY STATEMENT
xi
1
2
3
3
4
6
8
9
10
11
16
18
22
Thank You for purchasing this
Wells Bloomfield appliance.
SPECIFICATIONS
FEATURES & OPERATING CONTROLS
PRECAUTIONS & GENERAL INFORMATION
AGENCY APPROVAL INFORMATION
INSTALLATION INSTRUCTIONS
OPERATION
Proper installation, professional
operation and consistent
maintenance of this appliance will
ensure that it gives you the very
best performance and a long,
economical service life.
BREWING COFFEE
CLEANING INSTRUCTIONS
TROUBLESHOOTING SUGGESTIONS
SERVICING INSTRUCTIONS
Deliming Instructions
EXPLODED VIEWS & PARTS LISTS
WIRING DIAGRAMS
This manual contains the
information needed to properly
install this appliance, and to use,
care for and maintain or repair the
appliance in a manner which will
ensure its optimum performance.
SPECIFICATIONS
MODEL
8540
TYPE
WARMERS FAUCET
VOLTS
AMPS
WATTS
POWER
CORD
1ø
In-Line,
Automatic,
Plumbed-In
1700
14.1
(11.7)
2
2
YES
NO
120VAC
120VAC
NEMA 5-15P
NEMA 5-15P
(1400k)
In-Line,
Automatic,
Plumbed-In
1700
14.1
(11.7)
8541
(1400k)
In-Line,
Pour-Over
8542
8543
8571
1
2
3
NO
NO
NO
120VAC
120VAC
120VAC
13.3
1600
NEMA 5-15P
NEMA 5-15P
NEMA 5-15P
1700
In-Line,
Pour-Over
14.1
(11.7)
(1400k)
3-Station,
Pour-Over
15.0
1800
3-Station,
Automatic,
Plumbed-In
1800
15.0
(12.5)
8572
8573
8574
3
3
3
YES
NO
120VAC
120VAC
NEMA 5-15P
NEMA 5-15P
not provided
(1500k)
3-Station,
Automatic,
Plumbed-In
1800
15.0
(12.5)
(1500k)
3-Station,
Automatic,
Plumbed-In
YES
115/230VAC
17.0
3700
k Canadian brewers are 1500W maximum.
1
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FEATURES AND OPERATING CONTROLS
TIMER
ACCESS
Fig. 1 Features & Operating Controls
2
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PRECAUTIONS AND GENERAL INFORMATION
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. Failure to
heed this warning can result in electrical shock.
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 property damage and
personal injury.
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. Electrical shock will cause death or serious Injury.
WARNING: BURN HAZARD
This appliance dispenses very hot liquid. Serious bodily injury from scalding can occur from
contact with dispensed liquids.
This appliance is intended for commercial use only.
CAUTION:
EQUIPMENT DAMAGE
This appliance is intended for use to brew beverage products for
human consumption. No other use is recommended or
authorized by the manufacturer or its agents.
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.
This appliance is intended for use in commercial establishments,
where all operators are familiar with the appliance use,
limitations and associated hazards. Operating instructions and
warnings must be read and understood by all operators and
users.
CAUTION:
BURN HAZARD
Except as noted, this piece of equipment is made in the USA
and has American sizes on hardware. All metric conversions
are approximate and can vary in size.
Exposed surfaces of the
appliance, brew chamber and
decanter may be HOT to the
touch, and can cause serious
burns.
The following trouble shooting, component views and parts lists
are included for general reference, and are intended for use by
qualified service personnel.
This manual should be considered a permanent part of this
appliance. The manual must remain with the appliance if it is
sold or moved to another location.
AGENCY APPROVAL INFORMATION
These brewer are
listed under UL file E9253, and
listed under LR21315.
LR21315
E9253
This brewer meets
Standard 4 only when installed,
operated and maintained in accordance with the enclosed
instructions.
STD 4
3
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INSTALLATION INSTRUCTIONS
READ THIS CAREFULLY BEFORE STARTING THE INSTALLATION
IMPORTANT:
REFER TO EXPLODED VIEWS PAGES 18 thru 22 FOR
COMPONENT NAMES/NUMBERS
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:
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 (#33) and Spray Disk (#34)
are properly installed.
CAUTION:
LEVELING THE UNIT
EQUIPMENT DAMAGE
Verify that an adjustable leg is installed at each corner of the
brewer.
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.
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.
CAUTION:
UNSTABLE
EQUIPMENT HAZARD
PLUMBER’S INSTALLATION INSTRUCTIONS
Brewer should be connected to a POTABLE WATER, COLD
WATER line. Flush water line before connecting to Brewer.
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.
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.
NOTE: Water supply inlet line
must meet certain minimum
criteria to insure successful
operation of the brewer.
Bloomfield recommends 1/4"
copper tubing for installation of
less than 25 feet and 3/8" for
more than 25 feet from a 1/2"
water supply line.
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.
4
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INSTALLATION INSTRUCTIONS (continued)
NOTE: This equipment must be
installed to comply with
applicable federal, state and
local plumbing codes and
ordinances.
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.
WARNING:
SHOCK HAZARD
Brewer must be properly
grounded to prevent possible
shock hazard. DO NOT
assume a plumbing line will
provide such a ground.
Fig. 2 Water Supply Installation
New-style shown
Electrical shock will cause death
or serious injury.
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: Do not connect
brewer to electrical power until
the tank is filled with water.
Pour water into the pour-over
opening until water flows from
the brew head.
IMPORTANT:
ELECTRICIAN’S INSTALLATION INSTRUCTIONS
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.
REFER TO ELECTRICAL SPECIFICATIONS - Page 1
Check the nameplate to determine correct electrical service
required for the Brewer to be installed.
IMPORTANT: Before connecting to electricity, make sure
automatic brewers are connected to the water supply.
All models (except 8574) are equipped with a cord and plug.
They require a 115 - 125 volt 20 amp circuit (50/60 Hz, 2 wire
plus ground, with NEMA 5-15R or 5-20R Receptacle).
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.
Model 8574 must be wired by an electrician, and requires a
115/230V 20A circuit (50/60 Hz, 2 hot legs / 1 neutral leg, plus
ground). Remove front panel to gain access to terminal block.
Green terminal must be connected to a suitable building ground.
Circuit must be capable of 3800 Watts. See figure 3 at right.
IMPORTANT: Wiring must be installed in approved solid or
flexible conduit, and must be secured to the brewer with a strain
relief (to be provided by the installer).
Fig. 3 115/240 Volt Terminal Block
5
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OPERATION
Fig. 4 Brewer Operation Diagram
IMPORTANT:
A. START-UP
Tank must be full of water
before connecting brewer
to electrical power.
For initial start-up, or if the brewer has not been used for an
extended period of time:
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.
♦ Be sure spray disk and brew gasket are properly installed in the
brew head.
♦ Be sure the water supply is properly connected and the water
supply valve is turned ON.
♦ Be sure the WATER TANK IS FILLED
BEFORE plugging the brewer into a receptacle, or otherwise
connecting brewer to electrical power THE WATER TANK MUST
BE FILLED. Place an empty decanter under the brew head. Lift
the pour-over cover then pour warm tap water into the pour-over
opening until water flows from the brew head. When water stops
dripping from the brew head, empty the container.
Once the tank is full of water, connect the brewer to electrical
power. The heating elements will begin heating the water in the
tank. When the water has reached the proper temperature, the
“READY To BREW” light will glow.
6
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OPERATION (continued)
WATER HEATER
Water temperature is sensed by a
thermobulb inserted into the water tank. This
temperature signal is fed to the thermostat,
which controls line power to the heating
element.
The setpoint temperature is adjustable at the
thermostat.
The element is protected from over-
temperature by a hi-limit thermostat.
Fig. 5 Heat Control Diagram
WATER FLOW
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 into
the brew chamber.
AUTOMATIC OPERATION
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 into
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.
HOT WATER FAUCET
The faucet water coil is submerged in the hot
water tank and draws heat from the brew
water. Water going to the water coil is not
controlled by the solenoid valve.
The faucet is at supply water pressure any
time the faucet shut-off valve is OPEN.
Fig. 6 Water Flow Diagram
7
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BREWING COFFEE
B. PREPARATION
CAUTION:
BURN HAZARD
Place one (1) genuine Bloomfield
paper filter in the brew chamber.
Add a pre-measured amount of
fresh coffee grounds.
Gently shake the brew chamber to
level the bed of grounds. Slide the
brew chamber into place under the
brew head.
PAPER
FILTER
Exposed surfaces of the
brewer, brew chamber and
decanter may be HOT to
the touch, and can cause
serious burns.
BREW
CHAMBER
Fig. 7 Brew Chamber
C. POUR-OVER OPERATION
CAUTION:
BURN HAZARD
NOTE: Any Integrity™ brewer can be used in the pour-over mode.
BE sure “READY TO BREW” light is lit.
To avoid splashing or over-
flowing hot liquids,
Place the appropriate EMPTY decanter in place under the brew
ALWAYS place an empty
decanter under the brew
chamber before starting
the brew cycle. Failure to
comply can cause serious
burns.
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.
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.
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.
C. 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 quantity
of water into the basin.
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.
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.
8
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CLEANING INSTRUCTIONS
PROCEDURE: Clean Coffee Brewer
CAUTION:
BURN HAZARD
PRECAUTIONS: Disconnect brewer from electric power.
Allow brewer to cool.
Brewing and serving
temperatures of coffee are
extremely hot.
Hot coffee will cause
serious skin burns.
FREQUENCY:
TOOLS:
Daily
Mild Detergent, Clean Soft Cloth or Sponge
Bristle Brush.
CAUTION:
SHOCK HAZARD
1. Disconnect brewer from electric power.
Allow brewer to cool before cleaning.
Do not submerge or immerse
brewer in water.
2. Remove and empty decanters.
3. Remove and empty brew chamber.
IMPORTANT:
4. Remove the spray disk from the brew head (See figure 8):
Press up on the spray disk ears, then turn the disk to the left
to unlatch. Remove the gasket from inside the brew head.
DO NOT use steel wool, sharp
objects, or caustic, abrasive or
chlorinated cleansers to clean
the brewer.
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. For
stainless steel brew chambers, be sure the wire rack is
properly reinstalled.
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.
Fig. 8 Cleaning
11. Reinstall the brew chamber.
12. Decanters may be washed in a dishwasher or sink.
Procedure is complete
9
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TROUBLESHOOTING SUGGESTIONS
Keep brewer, and decanters clean. Install a taste and odor filter
in water supply, and replace cartridges regularly.
Use a quality coffee with a consistent roast. Use proper grind
and amount of coffee per brew.
10
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SERVICING INSTRUCTIONS
ACCESS PANELS
CAUTION:
Each warmer plate has a center stud which screws into a
bracket. Warmer plates on Canadian brewers are secured with
a nut. Remove button plug on bottom of brewer to access nut
on warmer plate. Remove warmer plates by turning counter-
clockwise.
SHOCK HAZARD
Opening access panels or
removing warmer plates on this
brew may expose uninsulated
electrical components.
Disconnect brewer from
electrical power before
removing any panel or warmer
plate.
Solenoid door is held by two screws and a retaining lip.
Front Panel (In-Line Models) and Top / Rear Panel (3-Station
Models):
a. Remove warmer plate by turning counter-clockwise
until it unscrews.
b. Remove screws from two retaining clips under
warmer plate.
c. Lift off panel.
Front Panel (3-Station Models):
a. Remove warmer plates by turning counter-clockwise
until they unscrew.
b. Remove screws from two retaining clips under each
warmer plate.
c. Remove three screws from bottom-side of front lip.
d. Pull bottom of panel forward until it clears.
Top Panel (All Models):
a. Remove two screws from rear of top panel.
b. Lift rear of panel, remove to rear.
Fig. 9 Access Panels
11
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SERVICING INSTRUCTIONS (continued)
TEMPERATURE ADJUSTMENT
CAUTION:
SHOCK HAZARD
Unplug power cord or turn circuit breaker OFF. Remove top
panel.
These procedures involve
exposed electrical circuits.
These procedures are to be
performed by qualified
Pull vent tube out of tank lid and insert a thermometer of known
accuracy in vent hole. Reconnect brewer to electrical power.
technical personnel only.
NOTE:
Optimum brewing temperature
range is 195ºF to 205ºF (90ºC
to 96ºC).
Fig. 10 Checking and Adjusting Brew Temperature
IMPORTANT:
A mechanical thermostat will
maintain temperature within
±5ºF. To prevent boiling water
in the brewer, thermostat should
be adjusted to a maximum
temperature equal to the local
boiling temperature minus 5ºF.
Place an empty decanter under brew chamber. Energize brewer
and pour one decanter (64 oz.) of cold water into pour-over
opening. When READY TO BREW light comes on, read
temperature displayed on thermometer.
Adjust thermostat by turning shaft; clockwise increases
temperature. 1/8 turn = approximately 10ºF.
Refer to Table 1 below for proper brewing temperature based on
altitude.
BOILING
POINT OF
WATER
NOTE: 1/8 turn = approximately
10ºF (5.6ºC).
210
205
200
IDEAL
BREWING
TEMPERATURE
MAXIMUM
TEMPERATURE
SETTING
195
190
ELEVATION (feet above seal level)
BOILING
POINT OF
WATER
100
97
Fig. 11 Adjust Thermostat
IDEAL
BREWING
TEMPERATURE
RANGE
94
91
88
MAXIMUM
TEMPERATURE
SETTING
ELEVATION (meters above seal level)
Table 1 Boiling Temperature by Altitude
Upon completion, remove thermometer and reinstall vent tube.
12
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SERVICING INSTRUCTIONS (continued)
TIMER ADJUSTMENT
IMPORTANT: Water pressure
must be between 20 p.s.i and
The amount of water dispensed automatically during a brew cycle
is controlled by the timer.
90 p.s.i. flowing pressure.
If water pressure exceeds this
value, or if water pressure
varies greatly, a pressure
regulator must be installed in
the water supply line.
Place empty decanter under brew chamber. Press BREW
button. Brewer should dispense one decanter of water. To
adjust amount:
Remove brew chamber and button plug. Adjust knob on timer;
clockwise increases time. Run several cycles to check amount
of water delivered. Replace button plug.
REMOVE TANK LID ASSEMBLY
Unplug brewer or turn circuit breaker OFF. Turn OFF water
supply. Remove top panel. Pull vent tube and inlet elbow out of
basin pan.
IMPORTANT: Before setting
assembly into tank, make sure
tank lid gasket is properly
seated on flange of lid.
Pull water inlet tube out of basin pan. Remove basin pan.
DO NOT OVER-TIGHTEN.
On models with faucet, disconnect inlet pipe at faucet shut-off
valve and outlet pipe at faucet.
Disconnect all wiring from thermostat, hi-limit, and heating
element.
Loosen center screw on tank hold-down bracket. Remove
hold-down bracket by sliding short slotted end off of locking stud
and lifting it off. Remove cover assembly by lifting it straight up.
Reassemble in reverse order.
REPLACE THERMOSTAT
Unplug brewer or turn circuit breaker OFF. Turn OFF water
IMPORTANT:
supply. Remove top panel.
If mounting thermostat
p/n 8512-51, be sure to place
a new seal washer below the
fitting on the capillary line.
Disconnect all wiring from thermostat only. Loosen and free
jam nut from pass-thru fitting securing temperature sensing bulb.
Remove two screws holding thermostat to bracket.
Lift out thermostat, sensing bulb and thermostat gasket.
If replacing gray-bodied thermo
with p/n 8512-51, be sure to
remove tube from thermowell.
Push sensing bulb into tank lid thermowell until fitting seats.
Tighten capillary lock nut only enough to ensure no water
leakage. Excessive tightening is not necessary.
Reassemble in reverse order.
13
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SERVICING INSTRUCTIONS (continued)
IMPORTANT: When replacing
heating element, also replace
seal gaskets.
REPLACE HEATING ELEMENT
Remove tank lid assembly as described on page 13.
Remove two hex nuts holding element to cover. Pull element
from mounting holes.
Reassemble in reverse order.
REPLACE SOLENOID
Symptom: Automatic brewer will not flow water; or,
automatic brewer drips continuously from brew head.
NOTE: Wrench p/n 86660 is designed to allow easy removal of
the hoses from the plastic solenoid valve.
IMPORTANT: Shut-off water and electric supply to brewer
before removing hoses or wiring.
Remove water supply flare fitting:
a. Slide the 5/8" end of the wrench over the flats on the
inlet fitting of the valve.
b. Hold the wrench to prevent the inlet fitting from turning
while installing or removing the inlet water supply flare
nut.
Remove braided hose:
a. Slide the 7/16" end of the wrench between the valve
body and the white ring on the extreme end of the metal
hose fitting.
b. Pressure on the white ring toward the metal ferrule
releases the clinch ring, allowing the hose to be easily
slid off of the solenoid bypass outlet.
c. Install hose on new valve by pressing end of hose onto
bypass outlet until it is fully seated.
Fig. 11 Remove Faucet
Supply from Solenoid
Disconnect wiring.
Remove two screws holding solenoid to access door.
Reassemble in reverse order.
CLEAN SOLENOID SCREEN
Symptom: Automatic brewer will not flow water.
Unplug power cord or turn circuit breaker OFF. Turn OFF and
disconnect water supply from brewer inlet fitting.
Unscrew water inlet fitting from solenoid.
Using needle-nose pliers, withdraw strainer screen from solenoid.
Clean screen under faucet. A stiff bristle brush may be used if
necessary.
Fig. 12 Clean Strainer Screen
Reinsert screen in solenoid. Be careful to maintain correct
orientation. (The OPEN END of the screen goes in FIRST.)
Reassemble in reverse order.
14
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SERVICING INSTRUCTIONS (continued)
REPLACE TIMER ASSEMBLY
IMPORTANT: When replacing
water faucet coil, also replace
seal gaskets.
Unplug power cord or turn circuit breaker OFF.
Remove front panel. Remove knob and three screws holding
timer to bracket. Disconnect wiring to timer.
Reassemble in reverse order.
Adjust timer as described on page 13
REPLACE HOT WATER FAUCET COIL
Symptom: Brewer drips continuously from brew head, except
when faucet valve is turned OFF.
NOTE: Any abrasion or
roughness on the flat end of the
seat cup will require replacing
the seat cup:
Remove tank lid assembly per above.
Remove two hex nuts hot water coil to cover. Pull coil from
mounting holes.
Work the seat cup out of the
bonnet and off of the end of the
stem.
Reassemble in reverse order.
REPAIR HOT WATER FAUCET
Install a new seat cup, making
sure the knob on the stem is
fully inserted into the pocket of
the seat cup, and the skirt of the
seat cup is fully inserted into the
bonnet.
Remove top panel and turn faucet valve OFF.
Unscrew aerator cap from faucet and remove handle retaining
clip. Do not let faucet body turn.
Pull bonnet assembly from faucet body.
Examine the interior of the faucet body and the surface of the
seat cup. Clean out any debris in the faucet body, using a stiff
bristle brush if necessary.
Examine the aerator. Clean any debris from the screen or flow
straightener, using a stiff bristle brush if necessary.
Reassemble in reverse order.
REPLACE BREW READY LIGHT or BREW BUTTON
Unplug power cord or turn circuit breaker OFF.
Using Switch Removal Tool (p/n 83209) or a thin screwdriver, pry
light or switch from mounting hole. Disconnect leads.
Reassemble in reverse order.
15
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SERVICING INSTRUCTIONS (continued)
PROCEDURE: Delime the Water Tank
CAUTION:
CHEMICAL BURN
HAZARD
PRECAUTIONS: Disconnect brewer from electric power.
Allow brewer to cool.
Deliming chemicals are caustic.
Wear appropriate protective
gloves and goggles during this
procedure.
FREQUENCY:
TOOLS:
As required (Brewer slow to heat)
Deliming Solution
Never siphon deliming
chemicals or solutions by
mouth.
This operation should only be
performed by qualified and ex-
perienced service personnel.
Protective Gloves, Goggles & Apron
Mild Detergent, Clean Soft Cloth or Sponge
Bristle Brush, Bottle Brush
Large Sink (or other appropriate work area)
1. Disconnect brewer from the electrical supply. Turn off the
water shut-off valve and disconnect the water supply line
from the brewer inlet fitting.
IMPORTANT: DO NOT spill,
splash or pour water or deliming
solution into or over any internal
component other than the inside
of the water tank.
2. Remove the tank lid assembly as described on page 13.
3. Remove the water tank from the brewer body by lifting
straight up. Empty all water from the tank. Set the tank back
into the brewer.
IMPORTANT: DO NOT allow
any internal components to
come into contact with the
deliming solution. Take care to
keep all internal components
dry.
4. Mix 2 quarts of deliming solution according to the
manufacturer’s directions. Carefully pour the deliming
solution into the water tank. Lower the lid assembly back
onto the tank. Allow to sit for 30 minutes, or as directed by
the manufacturer.
5. At end of soaking period, remove lid assembly from tank.
Thoroughly rinse internal components of lid assembly with
clear water. Using a stiff bristle brush, scrub the heating
element (and faucet water coil on automatic brewers) to
remove lime and calcium build-up. Rinse with clean water.
Store lid assembly in a safe location .
NOTE: Repeat steps 4 thru 5
as required to remove all scale
and lime build-up.
6. Remove the tank from the brewer and empty. Using a stiff
bristle brush, scrub the interior of the water tank to remove
lime and calcium build-up. Rinse with clean water.
16
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SERVICING INSTRUCTIONS (continued)
7. Set the tank back into the brewer. Reassemble the tank lid to
NOTE: Normally, silicone
hoses do not need to be
delimed. Should deliming
hoses become necessary,
Bloomfield recommends
replacing the hoses.
the water tank. Make sure the gasket is properly in place,
then reinstall the hold-down strap.
8. Reinstall wiring to heating element and thermostat. Reinstall
the hi-limit thermostat (if removed). For brewers with hot
water faucet, reassemble faucet piping. Verify that all internal
components are dry, then reinstall the top panel.
10. Reconnect brewer to electrical supply and, for automatic
brewers, reconnect water supply.
11. Install the brew chamber without filter paper or grounds.
Run at least three full brew cycles and discard all water
generated.
12. Brewer is ready to use.
17
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CABINET & RELATED COMPONENTS
18
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Koffee-King™ EXPLODED VIEW & PARTS LIST (continued)
ITEM PART NO. DESCRIPTION
USED ON
1
4
8700-16
8543-80
8543-23
8543-69
8543-42
82727
COVER PLATE, WARMER, BLACK
ALL
CLIP, PANEL RETAINING
ALL
20
23
33
34
34a
35
38
40
41
47
47a
48
70
101
NUT, #8SMS, TINNERMAN (not shown)
BUSHING, HEYCO
ALL
ALL
GASKET, SPRAY HEAD
ALL
SPRAY DISK, EMBOSSED
ALL
8543-45
85089
RETAINER, SPRAY HEAD (REQUIRES DRILL/RIVETS TO INSTALL)
DOOR, SOLENOID ACCESS, PLASTIC
DOOR, ELECTRIC ACCESS
ALL
8540, -41, -72, -73, -74
8574
8574-10
8706-76
18-50
BUTTON PLUG, 1-1/8" DIA, METAL (WARMER PLATE RETAINER)
NUT, WARMER PLATE RETAINING, 1/4-28
BUTTON PLUG, 1/2" DIA, PLASTIC (NON FAUCET MODELS)
BUTTON PLUG, 3/8" DIA, METAL (HI-LIMIT RESET)
ASSEMBLY, ADJUSTABLE LEG
ALL (Canadian)
ALL (Canadian)
8541, -42, -43, -71, -73
8574
8810-12
8033-60
81732
ALL
8706-75
8572-13
BUTTON PLUG, 2" DIA, METAL (TIMER)
ASSEMBLY, BREWER TOP (BASIN)
8540, -41, -71, -72, -73
ALL
8512-56
8542-6
BASIN COVER W/WARMER MOUNT
BASIN COVER, W/O WARMER MOUNT
8540, 8541, 8543
8542, -71, -72, -73, -74
102
103
108
86666
ASSEMBLY, POUR-OVER PLASTIC
ALL
8541-21
8543-29
BASIN PAN (AUTOMATIC)
BASIN PAN (POUR-OVER)
8540, -41, -72, -73, -74
8542, 8543, 8571
8542-110 LABEL, CONTROL PANEL DECAL (IN-LINE POUR-OVER 1W)
8543-160 LABEL, CONTROL PANEL DECAL (IN-LINE POUR-OVER 2W)
8541-160 LABEL, CONTROL PANEL DECAL (IN-LINE AUTOMATIC 2W)
8572-110 LABEL, CONTROL PANEL DECAL (STEP-UP AUTOMATIC 3W)
8542
8543
8540, 8541
8572, 8573, 8574
8571
110
111
8571-20
LABEL, CONTROL PANEL DECAL (STEP-UP POUR-OVER 3W)
8542-25
8540-25
8571-13
8572-33
(none)
ASSEMBLY, BREWER BASE (IN-LINE POUR-OVER)
ASSEMBLY, BREWER BASE (IN-LINE AUTOMATIC)
ASSEMBLY, BREWER BASE (STEP-UP POUR-OVER)
ASSEMBLY, BREWER BASE (STEP-UP AUTOMATIC)
ASSEMBLY, BREWER BASE (STEP-UP AUTOMATIC)
8542, 8543
8540, 8541
8571
8572, 8573
8574
8541-155 PANEL, FRONT (IN-LINE AUTOMATIC)
8540, 8541
8542, 8543
8571
8543-48
8571-3
PANEL, FRONT (IN-LINE POUR-OVER)
PANEL, FRONT (STEP-UP POUR-OVER)
PANEL, FRONT (STEP-UP AUTOMATIC)
112
114
8572-10
8572, 8573, 8574
8718-61
8549-26
8752-66
8571-19
PANEL, BOTTOM PLATE (IN-LINE)
PANEL, BOTTOM PLATE (IN-LINE W/ACCESS HOLE)
PANEL, BOTTOM PLATE (STEP-UP)
IN-LINE (exc. Canadian)
IN-LINE (Canadian
STEP-UP (exc. Canadian)
STEP-UP (Canadian)
PANEL, BOTTOM PLATE (STEP-UP W/ACCESS HOLE)
115
200
201
8572-16
PANEL, COVER W/WARMER MOUNT
8571, 8572, 8573, 8574
8942-6B
8942-6
8707-6
BREW CHAMBER, BLACK PLASTIC
BREW CHAMBER, BROWN PLASTIC (OPTIONAL limited to stock on hand)
BREW CHAMBER, STAINLESS W/ WIRE BASKET (OPTIONAL)
ALL
ALL
POF
FILTER PAPER, COFFEE (CASE OF 1000)
19
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HOT WATER TANK ASSEMBLY
14
60
59
61
68
13
50
55
62
54
52
63
56
66a
57
56
70
66b
66
FAUCET
MODELS
ONLY
58
ALL
MODELS
50
67
ALTERNATE
ITEM PART NO. DESCRIPTION
USED ON
ALL
ALL
13
14
8043-5
83457
HOLD-DOWN STRAP
NUT, HEX 8-32 KEPS
8512-51
86280
THERMOSTAT (BLACK BODY - INCL. SEAL & MOUNTING SCREWS)
THERMO (ALT) (GRAY BODY - INCL. TUBE & MOUNTING SCREWS)
50
ALL
52
54
55
56
57
58
59
60
61
8512-41
8043-12
8043-28
8043-30
8941-21
8540-6
SEAL WASHER, THERMO CAP TUBE (ONLY)
TANK COVER GASKET
NUT HEX 1/2-20 BRASS
ALL
ALL
ALL
ALL
SEAL GASKET, ELEMENT OR WATER COIL
NUT HEX 7/16-20 BRASS
8540, 8572, 8574
HOT WATER COIL
TUBE, BASIN OUTLET/TANK INLET, SILICONE
TUBE, VENT, SILICONE
8540, 8572, 8574
8043-8
ALL
ALL
ALL
8043-15
8043-11
ELBOW, TANK OUTLET, SILICONE
8512-45
8514-68
TAN COVER, PLATE ONLY, 6 HOLES
TAN COVER, PLATE ONLY, 8 HOLES
8541, 8542, 8543, 8571, 8573
8540, 8572, 8574
62
63
8043-83
8552-50
THERMOSTAT, HI-LIMIT
THERMOSTAT, HI-LIMIT RESET
ALL, except 8574
8574
66
8043-24
8543-74
8543-73
WATER INLET TUBE
NUT, HEX 4-40 SS
SCREW 4-40 x 1 PAN HEAD
ALL
ALL
ALL
66a
66b
8043-93
8043-14
8716-1
HEATING ELEMENT (120V, 1200W)
HEATING ELEMENT (120V, 1500W)
HEATING ELEMENT (240V, 3500W)
ALL Canadian
ALL, exc. Canadian & 8574
8574
67
68
70
8043-10
80625
TANK BODY
BRACKET, HI LIMIT THERMOSTAT
ALL
8574
TANK COVER ASSEMBLY
8541WF-
300
INCLUDES: MOUNTED THERMO, HI-LIMIT, 120V 1500W HEATING
ELEMENT & HOT WATER COIL)
INCLUDES: MOUNTED THERMO, HI-LIMIT, 120V 1500W HEATING
ELEMENT. NO HOT WATER COIL)
8543-300
20
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Koffee-King™ EXPLODED VIEW & PARTS LIST (continued)
INTERNAL PLUMBING COMPONENTS
9
29a
29b
11
60
59
29c
10
61
18
29d
108
12
45
29e
43
29f
24
29g
29j
29k
29h
25
8
TANK ASSY
see PAGE 20
34a
33
26
27
28
29
34
ITEM PART NO. DESCRIPTION
USED ON
8
9
8540-3
8540-4
8551-30
8514-26
85681
FORMED TUBE, FAUCET OUTLET ASSEMBLY 10-7/8" LONG
FORMED TUBE, FAUCET COIL INLET ASSEMBLY
ADAPTER, 1/4" MALE FLARE x 1/8" FPT BRASS
VALVE, FAUCET SHUT OFF, NEEDLE SEAT
BRAIDED TUBE, FAUCET INLET 6MM x 299MM (11-3/4") LONG
ELBOW, BASIN INLET DIVERTER POLYPROPYLENE
TUBE, BREW OUTLET, METAL 4-3/4" LONG
ELBOW, SPRAYER, SILICONE
8540, 8572, 8574
8540, 8572, 8574
8540, 8572, 8574
8540, 8572, 8574
8540, 8572, 8574
8540, -41, -72, -73, -74
ALL
10
11
12
18
24
25
26
27
28
29
33
34
34a
43
8540-30
8043-26
8043-13
82680
ALL
LOCK NUT, HEX 7-16-20
8540, 8572, 8574
8540, 8572, 8574
8540, 8572, 8574
8540, 8572, 8574
ALL
8551-100B LOCK WASHER 7/16" EXT SEMS (FAUCET)
82681
82556
WASHER, FLAT 15/32" x 1-1/8" x 1/16" SS
FAUCET ASSEMBLY, PRESSURE
8543-42
82727
GASKET, SPRAY HEAD
SPRAY DISK, EMBOSSED
ALL
8543-45
8541-46
RETAINER, SPRAY HEAD (REQUIRES DRILL/RIVETS TO INSTALL)
TUBE, BASIN INLET, SILICONE 13"
ALL
8540, -41, -72, -73, -74
83612
85685
SOLENOID, SINGLE, 120V, .75 GPM
SOLENOID W/BYPASS, 120V, .75 GPM
8541, 8573
8540, 8572, 8574
45
59
60
61
8043-8
8043-15
8043-11
TUBE, BASIN OUTLET/TANK INLET, SILICONE
TUBE, VENT, SILICONE
ALL
ALL
ALL
ELBOW, TANK OUTLET, SILICONE
8541-21
8543-29
BASIN PAN (AUTOMATIC)
BASIN PAN (POUR-OVER)
8540, -41, -72, -73, -74
8542, 8543, 8571
108
FAUCET REPAIR KITS
82573
82575
HANDLE, FAUCET RED (29a)
SEAT CUP (29c)
FAUCET REPAIR KIT, INCL: HANDLE (29a), SEAT CUP (29c),
SPRING (29d), STEM (29h), PIN (29j) & BONNET (29k)
82576
82682
84804
84870
RETAINER CLIP (29b)
AERATOR REPLACEMENT, INCL: O-RING (29e), DISK (29f) & CAP (29g)
AERATOR REPAIR KIT, INCL: O-RING (29e) & DISK (29f)
21
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ELECTRICAL COMPONENTS
120V
63
50
50
ALTERNATE
35
30
240V
63
32
120V
67
43
31
2
36
37
45
240V
67
ITEM PART NO. DESCRIPTION
USED ON
2
8572-18
6710-23
HEATING ELEMENT, WARMER 120V 100W
SWITCH, WARMER ON/OFF 120V
ALL
ALL
30
8572-24
8707-55
SWITCH, MOMENTARY PUSH-BUTTON, BREW
SWITCH, MOMENTARY ROCKER, BREW
8572, 8573, 8574
8540, 8541
31
32
35
36
37
43
8718-31
8718-1
INDICATOR, 120V, READY-TO-BREW
TIMER, 2-MINUTE (WITH DIAL & KNOB) 120V
POWER CORD ASSEMBLY, 120V NEMA 5-15P
STRAIN RELIEF
ALL
8540, -41, -72, -73, 74
ALL (exc. 8574)
ALL (exc. 8574)
8574
6407-15
35-210
8552-18
TERMINAL BLOCK, 4P
83612
85685
SOLENOID, SINGLE, 120V, .75 GPM
SOLENOID W/BYPASS, 120V, .75 GPM
8541, 8573
8540, 8572, 8574
45
50
63
8512-51
86280
THERMOSTAT (BLACK BODY - INCL. SEAL & MOUNTING SCREWS)
THERMO (ALT) (GRAY BODY - INCL. TUBE & MOUNTING SCREWS)
ALL
8043-83
8552-50
THERMO, HI-LIMIT
THERMO, HI-LIMIT, RESET
ALL (exc. 8574)
8574
8043-93
8043-14
8716-1
HEATING ELEMENT (120V, 1200W)
HEATING ELEMENT (120V, 1500W)
HEATING ELEMENT (240V, 3500W)
ALL Canadian
ALL, exc. Canadian & 8574
8574
67
45d
45c
45b
45a
22
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Koffee-King™ WIRING DIAGRAMS
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Koffee-King™ WIRING DIAGRAMS (continued)
24
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Koffee-King™ WIRING DIAGRAMS (continued)
25
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Commercial Food Equipment Service Association
Wells Bloomfield proudly supports CFESA
Commercial Food Equipment Service Association
SERVICE TRAINING - QUAALITY SSEERVICE
Genuine Parts
Protect - YOU - All - Ways
CUSTOMER SATIISFACCTION
WELLS BLOOMFIELD, LLC
2 ERIK CIRCLE, P. O. Box 280 Verdi, NV 89439
telephone: 775-689-5707
fax: 775-689-5976
PRINTED IN UNITED STATES OF AMERICA
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