Bloomfield 8773 Automatic Airpot Brewer, 8774 Pour-Over Airpot Brewer Operation Manual
10 Sunnen Drive
St. Louis, MO 63143
telephone: 888-356-5362
fax: 314-781-2714
www.wellsbloomfield.com
BLOOM FIELD I N DU ST R I ES
Model 8774 Brewer
with optional
8881 Airpot
60 3
OWNERS MANUAL
For
IN TEGRIT Y™
COFFEE BREWERS
MODELS
8773 Automatic Airpot Brewer
8774 Pour-Over Airpot Brewer
Model 8773 Brewer
with optional
8881 Airpot
Domestic and
Export Models
Includes:
Installation
Use & Care
Servicing Instructions
p/n 2M-76451 Rev. E M603 101026
NOTE: For your protection, please note that equipment in
this shipment was carefully inspected and packaged by
skilled personnel before leaving the factory.
Upon acceptance of this shipment, the transportation
company assumes full responsibility for its safe delivery.
IF SHIPMENT ARRIVES DAMAGED:
1. VISIBLE LOSS OR DAMAGE: Be certain that any
visible loss or damage is noted on the freight bill
or express receipt, and that the note of loss or damage
is signed by the delivery person.
2. FILE CLAIM FOR DAMAGE IMMEDIATELY:
Regardless of the extent of the damage.
3. CONCEALED LOSS OR DAMAGE: if damage is
unnoticed until the merchandise is unpacked, notify the
transportation company or carrier immediately, and file
“CONCEALED DAMAGE” claim with them. This
must be done within fifteen (15) days from the date the
delivery was made to you. Be sure to retain the
container for inspection.
Wells Bloomfield cannot assume liability for damage or loss
incurred in transit. We will, however, at your request, supply
you with the necessary documents to support your claim.
WARRANTY STATEMENT
SERVICE POLICY AND PROCEDURE GUIDE
ADDITIONAL WARRANTY EXCLUSIONS
SHIPPING DAMAGE CLAIMS PROCEDURE
1. Resetting of safety thermostats, circuit breakers,
overload protectors, or fuse replacements unless
warranted conditions are the cause.
2. All problems due to operation at voltages other than
specified on equipment nameplates; conversion to
correct voltage must be the customer’s responsibility.
3. All problems due to electrical connections not made in
accordance with electrical code requirements and
wiring diagrams supplied with the equipment.
4. Replacement of items subject to normal wear, to include
such items as knobs and light bulbs. Normal maintenance
functions including adjustment of thermostats, microswitches,
and replacement of fuses and indicating lights are not
covered under warranty.
5. All problems due to inadequate water supply, such as
fluctuating, or high or low water pressure.
6. All problems due to mineral/calcium deposits, or
contamination from chlorides/chlorines. De-liming is
considered a preventative maintenance function and is
not covered by warranty.
All electrical equipment manufactured by WELLS
BLOOMFIELD is warranted against defects in materials and
workmanship for a period of one year from the date of original
installation or eighteen (18) months from the date of shipment
from our factory, whichever comes first, and is for the benefit
of the original purchaser, except that:
a. airpots carry a 30 day parts warranty only.
b. dispensers; i.e., tea and coffee carry a 90 days parts
warranty only, decanters excluded.
THE FOREGOING OBLIGATION IS EXPRESSLY GIVEN IN
LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, WHICH ARE HEREBY EXCLUDED.
BLOOMFIELD INDUSTRIES DIVISION / SPECIALTY
EQUIPMENT MANUFACTURING CORPORATION SHALL
NOT BE LIABLE FOR INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES OR LOSSES FROM ANY
CAUSE WHATSOEVER.
This warranty is void if it is determined that upon inspection by
an Authorized Service Agency that the equipment has been
modified, misused, misapplied, improperly installed, or
damaged in transit or by fire, flood or act of God.
It also does not apply if the serial nameplate has been
removed or unauthorized service personnel perform service.
The prices charged by Wells Bloomfield for its products are
based upon the limitations in this warranty. Seller’s obligation
under this warranty is limited to the repair of defects without
charge by a Wells Bloomfield Authorized Service Agency or
one of its sub-agencies. This service will be provided on
customer’s premises for non-portable models. Portable
models (a device with a cord and plug) must be taken or
shipped to the closest Authorized Service Agency,
transportation charges prepaid, for services.
In addition to restrictions contained in this warranty, specific
limitations are shown below (Additional Warranty Exclusions).
Wells Bloomfield Authorized Service Agencies are located in
principal cities.
This warranty is valid in the United States and void elsewhere.
Please consult your classified telephone directory or your food
service equipment dealer; or, for information and other details
concerning warranty, write to:
Service Parts Department
Wells Bloomfield, LLC
10 Sunnen Dr. P.O. Box 430129
St. Louis, MO 63143 USA
Phone: 1-800-807-9054 Fax: 1-800-396-2677
7. Full use, care and maintenance instructions are supplied
with each machine. Those miscellaneous adjustments
noted are customer responsibility. Proper attention will
prolong the life of the machine.
8. Travel mileage is limited to sixty (60) miles from an
authorized Service Agency or one of its sub-agencies.
9. All labor shall be performed during normal working hours.
Overtime premium shall be charged to the customer.
10. All genuine Bloomfield replacement parts are warranted
for ninety (90) days from date of purchase on
non- warranted equipment.
Any use of non-genuine Wells Bloomfield parts
completely voids any warranty.
11. Installation, labor and job check-out are not considered
warranty.
12. Charges incurred by delays, waiting time or operating
restrictions that hinder the service technicians ability
to perform services are not covered by warranty.
This includes institutional and correctional facilities.
xi
603 p/n 76451 8773_8774 Owmers Manual
TABLE OF CONTENTS
W
ARRANTY STATEMENT xi
SPECIFICATIONS 1
FEATURES & OPERATING CONTROLS 2
PRECAUTIONS & GENERAL INFORMATION 3
AGENCY LISTING INFORMATION 3
INSTALLATION INSTRUCTIONS 4
OPERATION 6
BREWING COFFEE 8
CLEANING INSTRUCTIONS 9
TROUBLESHOOTING SUGGESTIONS 10
SERVICING INSTRUCTIONS 11
Deliming Instructions 16
EXPLODED VIEWS & PARTS LISTS 18
SERVICE KITS 22
WIRING DIAGRAMS 23
SPECIFICATIONS
Thank You for purchasing this
Wells Bloomeld appliance.
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.
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.
MODEL STYLE VOLTS 1ø WATTS AMPS
8773
8773AU 240 1800 7.5
8773EU
8773UK
8774
8774AU 240 1800 7.5
8774EU
8774UK
8774KO 220 1500 6.9
POUR-OVER plus
AUTOMATIC W/HOT WATER
FAUCET
POUR-OVER ONLY
120 1500 12.5 NEMA-5-15P
220-240 1800 7.5
120 1500 12.5 NEMA-5-15P
220-240 1800 7.5
Also meets Canadian standards.
Meets European standards
POWER SUPPLY
CORD
SUPPLIED
SUPPLIED
603 p/n 76451 8773_8774 Owmers Manual
1
FEATURES AND OPERATING CONTROLS
IL1626
Fig. 1 Features & Operating Controls
2
603 p/n 76451 8773_8774 Owmers Manual
PRECAUTIONS AND GENERAL INFORMATION
E9 253
E9 253
ST D 4
WARNING: ELECTRIC SHOCK HAZARD
All servicing requiring access to non-insulated components must be performed by qualied
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 qualied 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.
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.
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.
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.
The following trouble shooting, component views and parts lists
are included for general reference, and are intended for use by
qualied 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 le E9253.
CAUTION:
EQUIPMENT DAMAGE
DO NOT plug in or energize this appliance until all Instal-
lation Instructions are read and
followed. Damage to the Brewer
will occur if these instructions are
not followed.
CAUTION:
BURN HAZARD
Exposed surfaces of the
appliance, brew chamber and
Airpot may be HOT to the touch,
and can cause serious burns.
This brewer meets Standard 4 only when installed,
operated and maintained in accordance with the enclosed
instructions.
Models as designated on page 1 meet requirements.
603 p/n 76451 8773_8774 Owmers Manual
3
INSTALLATION INSTRUCTIONS
READ THIS CAREFULLY BEFORE STARTING THE INSTALLATION
CAUTION:
EQUIPMENT 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.
CAUTION:
UNSTABLE
EQUIPMENT HAZARD
It is very important for safety
and for proper operation that the
brewer is level and stable when
standing in its nal 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.
IMPORTANT:
This equipment must be installed
to comply with all applicable
federal, state and local plumbing
codes and ordinances.
NOTE: Water supply inlet line
must meet certain minimum
criteria to insure successful
operation of the brewer.
Bloomeld 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.
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.
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.
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 (MODEL 8773
BREWERS ONLY)
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 ush 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 ow thru the
valve.
NSF requires that the brewer be able to be moved for cleaning
underneath. A ex line or loops of copper tubing will satisfy this
requirement. See Fig. 2 at right.
4
603 p/n 76451 8773_8774 Owmers Manual
INSTALLATION INSTRUCTIONS (continued)
IL1596
Fig. 2 Water Supply Installation - New-Style Brewers
In some areas, local codes require a backow preventer (check
valve) to be installed on the inlet water line. If a backow
preventer is used, you must install a water hammer arrester in
the incoming line, between the backow 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.
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: Before connecting to electricity, make sure
automatic brewers are connected to the water supply.
Domestic models 8773 & 8774 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).
Export models 8773 & 8774 are equipped with a cord and plug.
Refer to page 1 for circuit voltage requirements.
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:
Do not connect brewer to
electrical power until the tank
is lled with water. Pour water
into the pour-over opening until
water ows from the brew head.
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 t an
existing receptacle. Contact a
licensed electrician to install the
proper circuit and receptacle.
603 p/n 76451 8773_8774 Owmers Manual
5
OPERATION
IL1627
IL1618
Fig. 3 Model 8773 Operation Diagram
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.
START-UP
A.
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 three decanters of warm tap water
into the pour-over opening. Water will begin to ow from the brew
head. When all water ow stops, empty the container.
Once the tank is full of water, connect the brewer to electrical
power. Press the tank heater switch to ON. 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.
Fig. 4 Fill the Tank
6
603 p/n 76451 8773_8774 Owmers Manual
OPERATION (continued)
B A SI N
PA N
TA NK
B RE W
M AN UA L
P O UR -O VE R
B A SI N
PA N
E
S O LE NO ID
TA NK
B RE W
M AN UA L
P O UR -O VE R
FA UC ET
B Y PA SS
TA NK
W AT ER
C O IL
FA UC ET
S HU T-O FF
VA LV E
FA UC ET
H O T
W AT ER
E
FA UC ET
B Y PA SS
S O LE NO ID
IL1604
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.
To save energy, press the TANK HEAT switch
to OFF if no brew is expected for an
extended period.
WATER FLOW
POUR-OVER FEATURE (8773 & 8774)
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.
Fig. 5 Heat Control Diagram
AUTOMATIC OPERATION (8773 only)
Pressing BREW button energizes the
solenoid valve, allowing water from an
external water supply to ow 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 ow control device so
that ow 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 (8773 only)
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.
Hot water is provided at the faucet, at supply
water pressure, any time the faucet shut-off
valve is OPEN.
603 p/n 76451 8773_8774 Owmers Manual
Fig. 6 Water Flow Diagram
7
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