622
10 Sunnen Drive
St. Louis, MO 63143
telephone: 314-678-6336
fax: 314-781-2714
OWNERS MANUAL
for
AIRPOT &
THERMAL SERVER
COFFEE BREWERS
MODELS
8778
8783
8788
8780
8785
8782
8786
Includes:
Installation
Use & Care
Servicing Instructions
Model 8780 Brewer
with optional
7750 Thermal Server
p/n 2M-75854 Rev. G
M622 130325
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TABLE OF CONTENTS
Thank You for purchasing this
Bloomfield appliance.
WARRANTY STATEMENT
SPECIFICATIONS
xi
1
2
3
3
4
6
8
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.
FEATURES & OPERATING CONTROLS
PRECAUTIONS & GENERAL INFORMATION
AGENCY LISTING INFORMATION
INSTALLATION INSTRUCTIONS
OPERATION
BREWING COFFEE
CLEANING INSTRUCTIONS
TROUBLESHOOTING SUGGESTIONS
SERVICING INSTRUCTIONS
Deliming Instructions
EXPLODED VIEWS & PARTS LISTS
WIRING DIAGRAMS
9
This manual contains the
10
11
16
18
22
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
STYLE
VOLTS
120V
120C
230UK
230V
120
WATTS
1800
1500
1800
1800
1800
1500
1800
1800
1800
1500
1800
1500
1800
1800
1800
1500
1800
1500
1800
1800
1800
1800
AMPS 1ø
15
12.5
POWER SUPPLY CORD
NEMA 5-15P
NEMA 5-15P
CW 3100
8778
8778CAk
8778 UK
8778 EURO
8780
8780CAk
8780 UK
8780 EURO
8782
8782CAk
8782XL
8782XLCAk
8782 UK
8782 EURO
8783
8783CAk
8785
8785CAk
8785XL
8785XLPI
8785 UK
8785 EURO
THERMAL
7.8
CEE 7/VII
15
12.5
NEMA 5-15P
NEMA 5-15P
CW 3100
120
THERMAL
230UK
230V
120
120
120
7.8
CEE 7/VII
15
12.5
15
NEMA 5-15P
NEMA 5-15P
NEMA 5-15P
NEMA 5-15P
CW 3100
AIRPOT
AIRPOT
AIRPOT
120
12.5
230UK
230V
120
120
120
120
120
240
7.8
CEE 7/VII
15
12.5
15
12.5
15
NEMA 5-15P
NEMA 5-15P
NEMA 5-15P
NEMA 5-15P
NEMA 5-15P
NEMA 1-15P (non-polarized)
CW 3100
7.5
230UK
230V
115/230 4 WIRE
230V
7.8
CEE 7/VII
8786
8788
THERMAL
AIRPOT
3500
3500
15
5
NONE
NONE
115/230 4 WIRE
k Meets Canadian standards.
1
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FEATURES AND OPERATING CONTROLS
POUR-OVER
COVER
POUR-OVER
OPENING
“READY TO
BREW” LIGHT
BREW
SWITCH
HOT WATER
FAUCET
AIROT
(BREWING
POSITION)
NOT AVAILABLE ON
MODELS 8782 or 8785
IL1705
Fig. 1 Features & Operating Controls
2
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PRECAUTIONS AND GENERAL INFORMATION
WARNING: ELECTRIC SHOCK HAZARD
ll servicing requiring access to non-insulated components must be performed by qualified
WARNING
ervice personnel. Do not open any access panels which require the use of tools. Failure
o heed this warning can result in electrical shock.
WARNING: INJURY HAZARD
ll installation procedures must be performed by qualified personnel with full knowledge of
WARNING
ll applicable electrical and plumbing codes. Failure could result in property damage and
ersonal injury.
WARNING: ELECTRIC SHOCK HAZARD
rewer must be properly grounded to prevent possible shock hazard. DO NOT assume a
lumbing line will provide such a ground. Electrical shock will cause death or serious Injury.
WARNING
WARNING: BURN HAZARD
his appliance dispenses very hot liquid. Serious bodily injury from scalding can occur from
ontact with dispensed liquids.
WARNING
This appliance is intended for commercial use only.
AUTION:
QUIPMENT 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:
URN 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
Airpot or Server 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 LISTING INFORMATION
This brewer is
and
listed under UL file E9253.
NOTE: Model 8785XLPI is not UL approved
E9253
STD 4
E9253
This brewer meets
Standard 4 only when installed,
operated and maintained in accordance with the enclosed
instructions.
3
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INSTALLATION INSTRUCTIONS
READ THIS CAREFULLY BEFORE STARTING THE INSTALLATION
IMPORTANT:
REFER TO EXPLODED VIEWS PAGES 18 thru 21 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.
AUTION:
QUIPMENT DAMAGE
LEVELING THE UNIT
Verify that an adjustable leg is installed at each corner of the
brewer, and that a rubber foot is installed on each leg.
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:
NSTABLE
QUIPMENT HAZARD
PLUMBER’S INSTALLATION INSTRUCTIONS (AUTOMATIC
BREWERS ONLY)
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.
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 10 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.
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 Fig. 2 at right.
4
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INSTALLATION INSTRUCTIONS (continued)
COPPER LOOPS OR
NOTE: This equipment must
be installed in compliance with
all applicable federal, state
and local plumbing codes and
ordinances.
FLEX LINES
SOLENOID
(PROVIDED BY
STRAINER
PLUMBER)
WASHER
SHUT-OFF VALVE
(PROVIDED BY
PLUMBER)
WATER INLET
FITTING
WARNING:
WARNING
HOCK HAZARD
ust 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.
FLOW
WATER
SUPPLY
IL1615
Fig. 2 Water Supply Installation
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.
ELECTRICIAN’S INSTALLATION INSTRUCTIONS
REFER TO ELECTRICAL SPECIFICATIONS - Page 1
Check the nameplate to determine correct electrical service
required for the Brewer to be installed.
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: Before connecting to electricity, make sure
automatic brewers are connected to the water supply.
Models 8778, 8780, 8782, 8783 & 8785 (120V units) are
equipped with a cord and plug. They require a 115 - 125 volt
15 amp circuit (50/60 Hz, 2 wire plus ground, with NEMA 5-15R
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.
Models 8786 & 8788 must be wired by an electrician, and
require 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 3500 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
IL1706
Fig. 4 Brewer Operation Diagram
IMPORTANT:
A. START-UP
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.
For initial start-up, or if the brewer has not been used for an
extended period of time:
Be sure spray disk and brew gasket are properly installed in the
brew head.
For automatic brewers, be sure the water supply is properly
connected and the water supply valve is turned ON.
BEFORE plugging the brewer into a receptacle, or otherwise
connecting brewer to electrical power ThE WATER TANk MuST
BE FIllED. Place an empty container 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
HI-LIMIT
THERMOSTAT
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.
THERMOBULB
The setpoint temperature is adjustable at the
thermostat.
HEATER
The element is protected from over-
temperature by a hi-limit thermostat.
THERMOSTAT
ELEMENT
WATER FLOW
POUR-OVER FEATURE
Fig. 5 heat Control Diagram
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.
MANUAL
POUR-OVER
BASIN
PAN
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
BREW
TANK
SOLENOID
MANUAL
POUR-OVER
The solenoid uses a flow control device so
that flow is consistent between 20 p.s.i. and
90 p.s.i.
BASIN
PAN
FAUCET
BYPASS
Length of time the solenoid is open is
controlled by the timer.
BREW
TANK
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.
SOLENOID
FAUCET
SHUT-OFF
VALVE
FAUCET
Hot water is provided at the faucet, at supply
water pressure, any time the faucet shut-off
valve is OPEN.
FAUCET
BYPASS
WATER
COIL
HOT
WATER
TANK
IL1654
Fig. 6 Water Flow Diagram
7
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BREWING COFFEE
A. PREPARATION
CAUTION:
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.
URN HAZARD
Exposed surfaces of the
brewer, brew chamber
and airpot or server may
be HOT to the touch, and
can cause serious burns.
IL1605
Fig. 7 Brew Chamber
CAUTION:
URN HAZARD
B. POUR-OVER OPERATION
NOTE: Any Gourmet 1000™ can be used in the pour-over mode.
To avoid splashing or
overflowing hot liquids,
ALWAYS place an empty
airpot or server under
the brew chamber before
starting the brew cycle.
Failure to comply can
cause serious burns.
BE sure “READY TO BREW” light is lit.
Place the appropriate EMPTY airpot or thermal server in place
under the brew chamber.
Fill an airpot or server, identical to the one being used, with tap
water. Lift the pour-over cover and pour the entire contents of the
container 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:
URN 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.
NOTE:
Place the appropriate EMPTY airpot or thermal server in place
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. Draw no
more than one (1) cup of
water at a time.
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.
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 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:
URN 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, Bottle Brush
CAUTION:
HOCK HAZARD
Do not submerge or immerse
brewer in water.
1. Disconnect brewer from electric power.
Allow brewer to cool before cleaning.
IMPORTANT:
2. Remove airpot or thermal server.
DO NOT use steel wool, sharp
objects, or caustic, abrasive or
chlorinated cleansers to clean
the brewer, airpots or thermal
servers.
3. Remove and empty brew chamber.
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.
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.
GASKET
8. Wipe the exterior of the brewer with a soft clean cloth or
sponge moistened with clean water.
SPRAY
DISK
9. Reinstall the gasket INSIDE the brew head, and then reinstall
the spray disk.
LIFT EARS UP
TURN LEFT TO
REMOVE
10. Reinstall the brew chamber.
IL1599
11. DO NOT submerge airpots or thermal servers in water.
Clean airpots and thermal servers 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.
Fig. 8 Cleaning
Procedure is complete
9
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TROUBLESHOOTING SUGGESTIONS
SYMPTOM
POSSIBLE CAUSE
SUGGESTED REMEDY
Check power supply cord
Brewer unplugged or circuit breaker
tripped
Check / reset circuit breaker
Set for desired temperature
Thermostat set too low
Allow to cool,
Reset hi-limit (8786, 8788)
Hi-Limit thermostat tripped
Water won’t heat
Examine wiring & connectors,
thermostat and heating element,
Repair/replace as needed
Damaged internal component or
wiring
Pourover - no water or too little water
added at startup
Be sure to add sufficient water
Not enough water poured in
Too much coffee grounds
Increase water amount
Coffee level low (pour-over)
Adjust amount of grounds
Coffee level too high or low
(automatic)
Timer out of adjustment
Adjust timer
Too many filter papers or wrong filter
paper
Use one (1) genuine Bloomfield
filter per brew
Brew chamber overflows
Brew chamber dispense hole plugged Thoroughly clean brew chamber
Too much coffee or too fine a grind
Adjust coffee amount and grind
Check/reinstall gasket on INSIDE
of brew head
Spray gasket improperly installed
Sprays water from brew head
Spray disk plugged
Clean spray disk
Turn water supply ON
Clean strainer
Water supply OFF
Solenoid strainer plugged
Water filter (if used) plugged
Bad BREW switch
Replace filter element
Replace switch
No brew (automatic)
Examine wiring & connectors,
brew switch and solenoid, Repair/
replace as needed
Damaged internal component or
wiring
Faucet valve turned OFF
Faucet plugged
Turn faucet valve ON
No flow from hot water faucet
Disassemble faucet, clean
Adjust water temp 195-205ºF
Water not hot enough
Keep brewer, airpots and servers 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.
Poor coffee quality
10
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SERVICING INSTRUCTIONS
ACCESS PANELS
AUTION:
HOCK HAZARD
TOP PANEL:
Remove top panel to access hot water tank, thermostat, heating
elements, brew circuit tubing, faucet valve and piping.
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.
Top panel is held by two screws at the rear and a retaining lip at
the front.
FRONT PANEL:
Remove front panel to access timer, terminal block and solenoid.
Front panel is held by two screws at the bottom and a retaining
lip at the top.
SOLENOID DOOR:
Remove solenoid door to access solenoid and plumbing
connections.
Solenoid door is held by two screws and a retaining lip.
TOP
PANEL
FRONT
PANEL
TIMER
BUTTON
PLUG
IL1707
SOLENOID
DOOR
Fig. 9 Access Panels
11
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SERVICING INSTRUCTIONS (continued)
TEMPERATURE ADJUSTMENT
AUTION:
HOCK 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
technical personnel only.
Pull vent tube out of tank lid and insert a thermometer of known
accuracy in vent hole. Reconnect brewer to electrical power.
IL1607
NOTE:
Optimum brewing temperature
range is 195ºF to 205ºF
(90ºC to 96ºC).
Fig. 10 Checking and Adjusting Brew Temperature
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.
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.
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.
Upon completion, remove thermometer and reinstall vent tube.
NOTE: 1/8 turn = approximately
10ºF (5.6ºC).
IL1601
IL1606
Fig. 11 Adjust Thermostat
100
97
94
91
88
ELEVATION (meters above sea level)
IL1602
Table 1 Boiling Temperature by Altitude
12
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SERVICING INSTRUCTIONS (continued)
TIMER ADJUSTMENT
The amount of water dispensed automatically during a brew cycle
is controlled by the timer.
IMPORTANT: Water pressure
must be between 20 p.s.i and
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.
On models with faucet, disconnect inlet pipe at faucet shut-off
valve and outlet pipe at faucet.
DO NOT OVER-TIGhTEN.
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
supply. Remove top panel.
IMPORTANT:
If mounting thermostat
p/n WS-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.
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.
If replacing gray-bodied thermo
with p/n WS-8512-51, be sure to
remove tube from thermowell.
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.
STRAINER
SCREEN
CLEAN SOLENOID SCREEN
Symptom: Automatic brewer will not flow water.
WASHER
WATER INLET
FITTING
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.
IL1608
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
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
IMPORTANT: When replacing
water faucet coil, also replace
seal gaskets.
REPLACE HOT WATER FAUCET COIL
Symptom: Brewer drips continuously from brew head, except
when faucet valve is turned OFF.
Remove tank lid assembly per above.
Remove two hex nuts hot water coil to cover.
Pull coil from mounting holes.
Reassemble in reverse order.
REPAIR HOT WATER FAUCET
Remove top panel and turn faucet valve OFF.
NOTE: Any abrasion or
roughness on the flat end of the
seat cup will require replacing
the seat cup:
Unscrew aerator cap from faucet and remove handle retaining
clip. Do not let faucet body turn.
Pull bonnet assembly from faucet body.
Work the seat cup out of the
bonnet and off of the end of the
stem.
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.
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.
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. Disconnect
electric leads.
Using Switch Removal Tool (p/n WS-83209) or a thin screwdriver,
compress mounting tabs then pry light or switch from mounting
hole.
Reassemble in reverse order.
15
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SERVICING INSTRUCTIONS (continued)
PRCERE: eithtr Tn
UTION:
HEMICAL BURN
AZARD
PRECAUTIONS: Disconnect brewer from electric power.
Allow brewer to cool.
chemicals may be
caustic. Wear appropriate
protective gloves and goggles
during this procedure.
Never siphon deliming
chemicals or solutions by
mouth.
FREQUENCY:
TOOLS:
As required (Brewer slow to heat)
Deliming Solution
Protective Gloves, Goggles & Apron
Mild Detergent, Clean Soft Cloth or Sponge
Bristle Brush, Bottle Brush
This operation should only be
performed by qualified and
experienced service personnel.
Large Sink (or other appropriate work area)
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.
1. Disconnect brewer from the electrical supply. For automatic
brewers, turn off the water shut-off valve and disconnect the
water supply line from the brewer inlet fitting.
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.
NOTE: Normally, silicone
hoses do not need to be
delimed. Should deliming
hoses become necessary,
Bloomfield recommends
replacing the hoses.
7. Set the tank back into the brewer. Reassemble the tank lid
to the water tank. Make sure the gasket is properly in place,
and then reinstall the hold-down strap.
8. Reinstall wiring to heating element and thermostat. Reinstall
the hi-limit thermostat (if removed). For automatic brewers,
reassemble piping for the faucet. Verify that all internal
components are dry, and then reinstall the top panel.
9. Reconnect brewer to electrical supply and, for automatic
brewers, reconnect water supply.
10. Install the brew chamber without filter paper or grounds.
Run at least three full brew cycles and discard all water
generated.
11. Brewer is ready to use.
16
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EXPLODED VIEW & PARTS LIST
ASSEMBLY,
HOT WATER
TANK
IL1708
ITEM
13
14
50
52
54
55
56
57
58
59
60
61
PART NO.
2C-70134
2C-73457
WS-8512-51
2C-70174
2I-70147
DESCRIPTION
USED ON
HOLD-DOWN STRAP
NUT, HEX 8-32 KEPS
ALL
ALL
ALL
ALL
ALL
ALL
ALL
THERMOSTAT (BLACK BODY - INCL. SEAL & MOUNTING SCREWS)
SEAL WASHER, THERMO CAP TUBE (ONLY)
TANK COVER GASKET
2C-70175
2I-70152
NUT HEX 1/2-20 BRASS
SEAL GASKET, ELEMENT OR WATER COIL
NUT HEX 7/16-20 BRASS
2C-70151
2N-70149
2K-70101
2V-70102
2K-70103
A6-70221
A6-70142
2T-47499
2T-70716
2V-70144
2C-70146
2C-70145
2N-72299UL
2N-70143UL
2N-70715UL
2N-70173UL
2D-70110
8780, 8782, 8786, 8788
8780, 8782, 8786, 8788
ALL
HOT WATER COIL
TUBE, BASIN OUTLET/TANK INLET, SILICONE
TUBE, VENT, SILICONE
ALL
ELBOW, TANK OUTLET, SILICONE
TAN COVER, PLATE ONLY, 6 HOLES
TAN COVER, PLATE ONLY, 8 HOLES
THERMOSTAT, HI-LIMIT
ALL
8778, 8783, 8785
8780, 8782, 8786, 8788
ALL (exc. 8786, 8788)
8786, 8788
62
63
THERMOSTAT, HI-LIMIT RESET
WATER INLET TUBE
66
ALL
66a
66b
NUT, HEX 4-40 SS
ALL
SCREW 4-40 x 1 PAN HEAD
ALL
HEATING ELEMENT (120V, 1800W)
HEATING ELEMENT (120V, 1500W)
HEATING ELEMENT (240V, 3500W)
HEATING ELEMENT (240V, 1800W)
TANK BODY
ALL US (exc. 8786, 8788)
ALL CAN (exc. 8786, 8788)
8786, 8788
67
68
EU & UK 230V UNITS
ALL
TANK COVER ASSEMBLY
INCLUDES: MOUNTED THERMO, HI-LIMIT, 120V 1800W HEATING ELEMENT - NO HOT WATER COIL)
WS-85574
8780, 8782, 8786, 8788 US
8780, 8782, 8786, 8788
CAN
INCLUDES: MOUNTED THERMO, HI-LIMIT, 120V 1500W HEATING ELEMENT - NO HOT WATER COIL)
WS-8543-300
INCLUDES: MOUNTED THERMO, HI-LIMIT, 120V 1800W HEATING ELEMENT & HOT WATER COIL)
INCLUDES: MOUNTED THERMO, HI-LIMIT, 120V 1500W HEATING ELEMENT & HOT WATER COIL)
INCLUDES: MOUNTED THERMO, 230V 3800W HEATING ELEMENT & HOT WATER COIL)
DD-85575
WS-8541WF-300
WS-8541-300
8778, 8783, 8785 US
8778, 8783, 8785 CAN
8786, 8788
18
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EXPLODED VIEW & PARTS LIST (continued)
CABINET PLUMBING COMPONENTS
IL1709
ITEM PART NO. DESCRIPTION
USED ON
8
9
2V-70104
2V-70111
2E-70451
2V-70352
2J-75681
2K-70096
2V-70131
2K-70130
2C-72680
2C-70107
2C-72681
WS-82556
2I-70139
A6-82727
A6-70163
A6-73538
2E-75753
2E-74570
2K-70101
2V-70102
2V-70398
2K-70103
2D-70095
2D-70226
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
8780, 8782, 8786, 8788
8780, 8782, 8786, 8788
8780, 8782, 8786, 8788
8780, 8782, 8786, 8788
8780, 8782, 8786, 8788
8780, 8782, 8786, 8788
ALL
10
11
12
18
24
25
26
27
28
29
33
34
34a
43
ALL
LOCK NUT, HEX 7-16-20
8780, 8782, 8786, 8788
8780, 8782, 8786, 8788
8780, 8782, 8786, 8788
8780, 8782, 8786, 8788
ALL
LOCK WASHER 7/16” EXT SEMS (FAUCET)
WASHER, FLAT 15/32” x 1-1/8” x 1/16” SS
FAUCET ASSEMBLY, PRESSURE
GASKET, SPRAY HEAD
SPRAY DISK, EMBOSSED
ALL
RETAINER, SPRAY HEAD (REQUIRES DRILL/RIVETS TO INSTALL)
TUBE, BASIN INLET, SILICONE 10”
ALL
8780, 8782, 8786, 8788
8780, 8782, 8786, 8788
UK & EU 230V UNITS
ALL
SOLENOID W/BYPASS, 120V, .50 GPM
SOLENOID BYPS VALVE 240V, 75GPM
TUBE, BASIN OUTLET/TANK INLET, SILICONE
TUBE, VENT, SILICONE
45
59
8780, 8782, 8786, 8788
8778, 8783, 8785
ALL
60
TUBE, VENT, SILICONE LONG
61
ELBOW, TANK OUTLET, SILICONE
BASIN PAN (AUTOMATIC)
8780, 8782, 8786, 8788
8778, 8783, 8785
108
BASIN PAN (POUR-OVER)
FAUCET REPAIR KITS
HANDLE, FAUCET RED (29a)
WS-82573
WS-82575
SEAT CUP (29c)
FAUCET REPAIR KIT, INCL: HANDLE (29a), SEAT CUP (29c),
SPRING (29d), STEM (29h), PIN (29j) & BONNET (29k)
WS-82576
WS-82682
WS-84804
WS-84870
RETAINER CLIP (29b)
AERATOR REPLACEMENT, INCL: O-RING (29e), DISK (29f) & CAP (29g)
AERATOR REPAIR KIT, INCL: O-RING (29e) & DISK (29f)
19
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EXPLODED VIEW & PARTS LIST (continued)
IL1710
ITEM PART NO.
DESCRIPTION
USED ON
8780, 8782, 8786, 8788
ALL
31
2E-70733
2J-72671
2J-70644
2P-70128
SWITCH, MOMENTARY ROCKER, BREW
INDICATOR, 120V, READY-TO-BREW
LIGHT PILOT GREEN 250V
32
UK & EU 230V UNITS
8780, 8782, 8786, 8788
UK & EU 230V UNITS
8780, 8782, 8783, 8785
8778
TIMER, 2-MINUTE (WITH DIAL & KNOB) 120V
35
36
2P-70054RO TIMER W/KNOB 2-MIN 240V
2E-41050
2E-70017
2E-72921
2E-70666
2K-70215
2K-70648
2E-70709
2E-75753
2E-74570
CORD SET 125V 15A 5-15P 14/3 6FT
CORD SET 5-15P 6FT
CORD & CAP ASSY UK (CE)
CORD & CAP EURO 3COND EU
STRAIN RELIEF
230UK UNITS
230V UNITS
8778, -80, -82, -83, -85
UK & EU 230V UNITS
8786, 8788
37
43
45
50
63
STRAIN RELIEF SMALL
TERMINAL BLOCK, 4P
SOLENOID W/BYPASS, 120V, .50 GPM
SOLENOID W/BYPASS, 240V, 75 GPM
8780, 8782, 8786, 8788
UK & EU 230V UNITS
ALL
WS-8512-51 THERMOSTAT (BLACK BODY - INCL. SEAL & MOUNTING SCREWS)
2T-47499
2T-70716
THERMO, HI-LIMIT
8778, -80, -82, -83, -85
8786, 8788
THERMO, HI-LIMIT, RESET
2N-72299UL ELEM 120V 1800W TANK HTG
ALL US (exc. 8786, 8788)
ALL CAN (exc. 8786, 8788)
8786, 8788
2N-70143UL HEATING ELEMENT, WATER TANK 120V 1500W
2N-70715UL HEATING ELEMENT, WATER TANK 240V 3500W
2N-70173UL HEATING ELEMENT, WATER TANK 240V 1800W
67
NI
UK & EU 230V UNITS
8788 230/240V
2E-77566
SWITCH ROCKER ON-OFF
SOLENOID REPAIR KITS
INLET FITTING KIT INCLUDES: CAP (45a), FITTING (45b),
GASKET (45c) & STRAINER (45d)
WS-85218
WS-85219
IL1612
INLET STRAINER ( 45d ONLY)
20
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EXPLODED VIEW & PARTS LIST (continued)
CABINET COMPONENTS
IL1711
21
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EXPLODED VIEW & PARTS LIST (continued)
CABINET COMPONENTS
ITEM
21
PART NO.
2A-43201
2I-70139
DESCRIPTION
USED ON
8782XL, 8785XL
Spacer, .171 ID x .375 LG
Positioning Bracket
22
8782XL, 8785XL
33
2I-70139
GASKET, SPRAY HEAD
SPRAY DISK, EMBOSSED
ALL
34
A6-72727
A6-70163
2P-70053
2P-72159
2A-72160
2A-71732
2K-70229
2P-70272
A6-72288
A6-74813
DD-74894
A6-74788
A6-74693
A6-74773
A6-72292
A6-74811
DD-74900
A6-74793
ALL
34a
70
RETAINER, SPRAY HEAD (REQUIRES DRILL/RIVETS TO INSTALL)
Button Plug, 2" METAL (Timer)
Cap, Plastic, Lower Support
Lower Support, Leg, Aluminum Black Coating
LEG ASSEMBLY, LEVELLING
BUSHING, HEYCO
ALL
8780, 8782, 8786, 8788
ALL
71
72
ALL
73
ALL
75
ALL
77
Button Plug, 1/2" DIA PLASTIC (NON-FAUCET MODELS)
BODY WRAP 8780
8778, 8783, 8785
8780, 8778
BODY WRAP 8782
8782AF, 8785-A
8782AFL
BODY WRAP
101
BODY WRAP
8782TFL, 8785-AL, 8785-ALP
8786TF
BODY WRAP 8786/1086
BODY WRAP 8788
8788AF
8780TF, 8786TF, 8778-T
8782AF, 8785-A, 8788AF
8782AFL
102
103
PANEL FRONT
8782TFL, 8785-AL, 8785-ALP
Mounting, Hi-Limit Switch
8786, 8788
104
105
106
2Q-75089
2F-76666
WS-8542-6
2D-70399
2D-70095
2D-70226
2M-74806
2M-74853
2M-74970
DD-73257
A6-70231
2D-70234
DOOR, SOLENOID ACCESS, PLASTIC
POUR OVER ASSEMBLY, PLASTIC
Top Panel
8780, 8782, 8786, 8788
ALL
ALL
Basin Pan (Pour-Over Deep)
Basin Pan (Automatic)
8778
108
8780, 8782, 8786, 8788
8783, 8785
8780, 8782, 8786, 8792
8778, 8783
8785
Basin Pan (Pour-Over)
Decal Gourmet Basin w/Hole
Decal, Label Gourmet, Front
Decal 8785 Basin
109
110
Basin Body Assembly w/1" rear knockout
Assy, Basin Body
ALL
BREW CHAMBER, BLACK PLASTIC
BREW CHAMBER, BROWN PLASTIC (OPTIONAL limited to stock on
hand)
200
201
WS-8942-6
ALL
ALL
2D-70114
WS-POF
BREW CHAMBER, STAINLESS W/ WIRE BASKET (OPTIONAL)
FILTER PAPER, COFFEE (CASE OF 1000)
22
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WIRING DIAGRAM
120VAC, POUR-OVER
1800 WATT MODELS”
8778
8783
8785
1500 WATT (Canadian) MODELS:
8778CA
8783CA
8785CA
120VAC, AUTOMATIC
1800 WATT MODELS”
8780
8782
8782XL
1500 WATT (Canadian) MODELS:
8780CA
8782CA
8782XLCA
(BROWN 230V)
BLACK 14 GA
WHITE 14 GA
(BLUE 230V)
22
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WIRING DIAGRAM (continued)
23
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NOTES
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NOTES
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10 Sunnen Drive, St. Louis, MO 63143
telephone: 314-678-6336 fax: 314-781-2714
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