Bloomfield 8740-35G Installation Manual

10 Sunnen Drive

St. Louis, MO 63143

telephone: [phone]

fax: [phone]

www.wellsbloomfield.com

BLOOMFIELD INDUSTRIES

608

OWNERS MANUAL

for

ICED TEA

BREWING SYSTEM

MODEL

8740

Model 8740 Brewer

Includes:

Installation

Operation

Use & Care

Servicing Instructions

p/n 2M-76467 Rev. F M608 101123

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

le “CONCEALED DAMAGE” claim with them. This
must be done within fteen (15) days from the date

the delivery was made to you. Be sure to retain the
container for inspection.

Wells Bloomeld 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

specied 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
uctuating, 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, LLC 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 rst, and is for
the benet 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, excludes decanters.
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.

WELLS BLOOMFIELD, LLC 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 modied, misused, misapplied, improperly installed, or
damaged in transit or by re, ood 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 Bloomeld Industries 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 Bloomeld 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, specic
limitations are shown below (Additional Warranty Exclusions).
Bloomeld Industries Authorized Service Agencies are located

in principal cities.
This warranty is valid in the United States and void elsewhere.

Please consult your classied telephone directory or your food
service equipment dealer; or, for information and other details

concerning warranty, write to:

Service Parts Department

Wells Bloomeld, LLC

10 Sunnen Drive, St. Louis, MO 63143

Phone: [phone]... Fax: [phone]

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 Bloomeld replacement parts are warranted
for ninety (90) days from date of purchase on non-

warranted equipment. Any use of non-genuine

Bloomeld 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

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

TABLE OF CONTENTS

WARRANTY STATEMENT xi
SPECIFICATIONS 1
FEATURES & OPERATING CONTROLS 2
PRECAUTIONS & GENERAL INFORMATION 3
AGENCY LISTING INFORMATION 3
INSTALLATION INSTRUCTIONS 4
OPERATION 6
BREWING TEA 8
CLEANING INSTRUCTIONS 9
TROUBLESHOOTING SUGGESTIONS 10
SERVICING INSTRUCTIONS 11

Deliming Instructions 15

EXPLODED VIEW & PARTS LIST 16
WIRING DIAGRAMS 19

INTRODUCTION

Thank You for purchasing this Wells Bloomeld 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.

SPECIFICATIONS

8740: 3 - 5 Gallon Ice Tea Brewers

MODEL DIMENSIONS VOLTS WATTS AMPS 1ø POWER SUPPLY CORD

8740
8740-35G 220-240V 1800 7.83 CEE 7/VII
8740-35GUK 220-240V 1800 7.83 CW 3100

34-1/4” high,
11-1/4” wide,

19-27/32” deep

120V 1515 13 NEMA 5-15P

APPLICABILITY

This manual applies to the following Wells Bloomeld product:
8740 3 - 5 Gallon Tea Brewer

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

1

FEATURES AND OPERATING CONTROLS

IL1684

Fig. 1 Model 8740 Features and Operating Controls

2

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

PRECAUTIONS AND GENERAL INFORMATION

STD 4

WARNING

WARNING

WARNING

WARNING

PRECAUTIONS AND GENERAL INFORMATION

WARNING: ELECTRIC SHOCK HAZARD

All servicing requiring access to non-insulated components must be performed by qualied
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 qualied 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
qualied 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 listed under UL le E9253.

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:

BURN HAZARD

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

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

This brewer meets
operated and maintained in accordance with the enclosed
instructions.

Standard 4 only when installed,

3

3

E9253

E9253

INSTALLATION

STRAINER

SCREEN

WASHER

WATER

SUPPLY

FLOW

WATER INLET

FITTING

COPPER LOOPS

(PROVIDED BY PLUMBER)

SHUT-OFF VALVE

(PROVIDED BY PLUMBER)

IL1685

READ THIS CAREFULLY BEFORE STARTING THE INSTALLATION

IMPORTANT:

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

CAUTION:

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.

NOTE: Water supply inlet line

must meet certain minimum
criteria to insure successful
operation of the brewer.
Bloomeld recommends 1/4”
copper tubing for installation of
less than 12 feet and 3/8” for
more than 12 feet from a 1/2”
water supply line.

NOTE: This equipment must

be installed to comply with
applicable federal, state and
local plumbing codes and
ordinances.

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.

PLUMBER’S INSTALLATION INSTRUCTIONS
Brewer must 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 Figure 2 below.

Fig. 2 Water Supply Installation

4

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

INSTALLATION (continued)

NEMA 5-15P

PLUG

GROUND

PIN

NEMA 5-15R

RECEPTACLE

IL1686

WARNING

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.

Model 8740 is equipped with a cord and plug.

It requires a 115 - 125 volt 20 amp circuit (50/60 Hz, 2 wire plus
ground, with NEMA 5-15R receptacle).

PREPARATION

The water tank must be ller prior to operation. Slide an empty
brew chamber in place under the brew head. Place an empty
dispenser under the brew chamber.

Be sure the unit is connected to the water supply, the water

supply is turned ON and the “TANK HEATER SWITCH” is OFF.

Connect the unit to electric power.

Press the “START BREW” switch to initiate a brew cycle. The
solenoid will open and begin lling the tank. Initiate consecutive
brew cycles until water begins to ow from the brew head.

When all water stops dripping, discard all water generated.
Press the “TANK HEATER SWITCH” to ON. The heating
elements will begin heating the water in the tank. When the
“READY TO BREW” light glows the unit is ready for use.

WARNING

SHOCK HAZARD

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

IMPORTANT:

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

Fig. 3 Plug Conguration

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

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.

IMPORTANT: Do not connect

brewer to electrical power until

you are ready to ll the tank.

See instructions at left.

5

OPERATION

IL1687

Fig. 4 Brewer Operation Diagram

IMPORTANT:

Tank must be full of water
before pressing TANK
HEATER SWITCH “on”.
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

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

• Be sure the water supply is properly connected and the water

• Be sure the WATER TANK IS FILLED.

IMPORTANT: Fill the water tank before energizing this unit:

1. Insert the brew chamber (empty) and place an empty dispenser in

is NOT COVERED BY
WARRANTY.

2. Be sure the TANK HEATER SWITCH is “off”. Plug the unit into an

3. Press The BREW switch. Water will start lling the tank. Run

4. When water stops dripping from the brew chamber, empty the

START-UP

brew head.

supply valve is turned ON.

place under the brew chamber.

appropriate receptacle.

several consecutive brew cycles until water ows from the brew
chamber.

dispenser, then press TANK HEAT switch “on”. The heating
element will begin heating water in the tank. When the water has
reached the proper brewing temperature, the “READY TO BREW”
light will glow.

6

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

OPERATION (continued)

IL1689

HI-LIMIT
THERMOSTAT

THERMOBULB

THERMOSTAT

BREW

DILUTION

TIMER

BREW

SOLENOID

BYPASS

SOLENOID

TANK

HEATING
ELEMENT

WATER HEATER

Water temperature is sensed by a thermobulb
inserted into the water tank. This temperature
signal is fed to the mechanical thermostat.

The temperature setpoint is adjustable. Heating
element is energized by the thermostat.

Excessive temperature will trip the hi-limit safety
switch. The hi-limit will automatically reset when
the brewer cools.

WATER FLOW

AUTOMATIC OPERATION

Pressing the BREW switch starts the timer, which
in turn energizes the solenoid valves. This allows
water from an external water supply to ow into
the water tank. The incoming water forces heated
water out of the tank to perform the brew.
Additionally, a measured amount of unheated
water is bypassed into the dispenser to dilute and
cool the brew.

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

The length of time the solenoid is open is
controlled by the timer setting.

Fig. 5 Heat Control Diagram

Fig. 6 Water Flow Diagram

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

7

BREWING TEA

IL1605

CAUTION:

BURN HAZARD

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

CAUTION:

BURN HAZARD

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

CAUTION:

BURN HAZARD

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

A. PREPARATION

Place one (1) genuine Bloomeld
paper lter into the brew chamber.

Add an amount of fresh tea leaves
to the brew chamber appropriate
to the brew volume.

NOTE: the brewer can brew any
volume between 3 and 5 gallons,
and is factory set for a 3 gallons
brew volume. If other brew
volumes are desired, refer to
SOLENOID TIME ADJUSTMENT,
page 13.

Gently shake the brew chamber to level the bed of tea leaves.

Slide the brew chamber into place under the brew head.

B. AUTOMATIC OPERATION

BE sure “READY TO BREW” light is lit.

Place the appropriate EMPTY dispenser in place under the brew

chamber. If a brew-thru lid is used, be sure the bypass opening in
the lid is directly under the bypass nozzle.

Press the “BREW” switch. The brew solenoid will open for
an amount of time determined by the timer setting, admitting a
measured quantity of water into the tank.

Inlet water 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 tea will begin to ll the
dispenser. Additionally, a measured amount of cold dilution water
will ow from the bypass nozzle into the dispenser.

When the ow and all dripping stops at the end of the brew cycle,
the tea 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.

Fig. 7 Tea Brew Chamber

8

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

CLEANING INSTRUCTIONS

GASKET
SPRAY

DISK

LIFT EARS UP
TURN LEFT TO
REMOVE

IL1690

PROCEDURE: Clean Tea Brewer

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

FREQUENCY: Daily

TOOLS: Mild Detergent, Clean Soft Cloth or Sponge
Bristle Brush, Bottle Brush

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

2. Remove dispenser.

3. Remove and empty brew chamber.

4. Remove the spray disk from the brew head (See gure 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.

CAUTION:

BURN HAZARD

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

CAUTION:

SHOCK HAZARD

Do not submerge or immerse
brewer in water.

IMPORTANT:

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

7. Wash the brew chamber in a sink using warm water and a
mild detergent. Rinse with clean water and allow to air dry.

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

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

10. Clean dispensers by lling with warm soapy water. Empty
and rinse with clean water. Wipe the exterior with a soft
clean cloth or sponge moistened with clean water. Invert and
allow to air dry.

Procedure is complete

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

9

Fig. 8 Cleaning

TROUBLESHOOTING SUGGESTIONS

SYMPTOM POSSIBLE CAUSE SUGGESTED REMEDY

Brewer unplugged or circuit breaker
tripped

Tank heater switch OFF Press switch to ON

Water won’t heat

Tea level too high or low Timer out of adjustment Adjust timer

Brew chamber overows

Sprays water from brew
head

No brew

Poor coffee quality

Temperature setpoint too low Set for desired temperature
Hi-Limit safety switch tripped Allow to cool hi-limit will self-reset

Damaged internal component or
wiring

Too many lter papers or wrong
lter paper

Brew chamber dispense hole
plugged

Too much tea leaves Use correct amount of tea
Spray gasket improperly installed Check/reinstall gasket on INSIDE of brew head
Spray disk plugged Clean spray disk

Damaged internal component or
wiring

Water supply OFF Turn water supply ON
Solenoid inlet strainer plugged Clean strainer

Water lter (if used) plugged Replace lter element

Keep brewer and dispenser clean. Install a taste and odor lter in water supply, and

replace cartridges regularly. Use a quality fresh supply of tea leaves. Use amount of
tea leaves appropriate to brew volume.

Check power supply cord
Check / reset circuit breaker

Examine wiring & connectors, controller, power
board and heating element, Repair/replace as
needed

Use one (1) genuine Bloomeld lter per brew

Thoroughly clean brew chamber

Check switches, timer and solenoid. Repair,
replace as needed

10

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

SERVICING INSTRUCTIONS

LEFT HOLE PLUG
(TIMER ADJUST)

RIGHT HOLE PLUG
(THERMOSTAT ADJUST)

REAR PANEL

TOP WRAP

IL1690

ACCESS PLUGS

Use a small at-blade screwdriver or similar implement to pry the
hole plug from the access hole in the top wrap.

HOT WATER TEMPERATURE:
Remove right 7/8” hole plug to access temperature control.

WATER DELIVERED VOLUME:
Remove left 2” hole plug to access water volume timer.

ACCESS PANELS

TOP WRAP:
Remove top wrap to access hot water tank, thermostat, timer,
switches and brew circuit tubing.

Top wrap is held by two screws at the front and two screws at
the rear.

REAR PANEL:
Remove rear panel to access wiring and brew solenoid.

Rear panel is held by two screws and a retaining lip.

CAUTION:

SHOCK HAZARD

Opening access panels on this
brew may expose uninsulated
electrical components.
Disconnect brewer from
electrical power before
removing any panel.

NOTE ;

Time and temperature controls
may be accessed without
removing cabinet panels by
removing the appropriate hole
plug from the top wrap.

Fig. 8 Access Panels

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

11

SERVICING INSTRUCTIONS (continued)

IL1601

IL1602

TEMP. (°C)

ELEVATION (meters above sea level)

100

0

150

300

450

600

750

900

1,050

1,200

1,500

1,650

1,800

1,950

1,350

97
94

91
88

IL1606

CAUTION:

SHOCK HAZARD

Live electrical circuits are
exposed during this procedure.
Use care to avoid uninsulated
electrical connectors.

NOTE: Optimum brewing

temperature is 195ºF to 205ºF
(90ºC to 96ºC).
Thermostat should be adjusted
to a maximum temperature of
200ºF (95ºC).

IMPORTANT:

A mechanical thermostat will
maintain temperature within
±5ºF.
To prevent boiling water in
the brewer, controller should
be adjusted to a maximum
temperature equal to the local
boiling temperature minus 5ºF,
or 205ºF (97ºC), whichever is
less.
NOTE: 1/8 turn = approximately
10ºF (5.6ºC).

TEMPERATURE ADJUSTMENT

Energize brewer and allow unit to heat. When the READY TO
BREW light rst glows, read the temperature.

Thermostat may be adjusted by removing the right button plug.
Carefully check the water temperature at the outlet of the brew
chamber. The temperature at this location is approximately 5º F
less than the actual brew temperature.

Adjust thermostat by turning shaft; clockwise increases
temperature. 1/8 turn = approximately 10ºF, or 5.6ºC.
Refer to Table 1 below for proper brewing temperature based on
altitude.

Upon completion, remove thermometer and reinstall the vent line
and top wrap.

Fig. 10 Adjust Thermostat

Table 1 Boiling Temperature by Altitude

12

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

SERVICING INSTRUCTIONS (continued)

IL1679

SOLENOID TIMER ADJUSTMENT

The amount of water dispensed automatically during a brew cycle
is controlled by the SOLENOID TIMER.

Place empty dispenser under brew chamber. Press the BREW
switch. Measure total amount of water delivered. To adjust
amount:

Remove left button plug. Adjust timer; clockwise increases
time. Run several cycles to check amount of water delivered.
Reinstall button plug.

REMOVE TANK LID ASSEMBLY

Unplug brewer or turn circuit breaker OFF. Turn OFF water

supply. Remove top wrap.

Disconnect brew ll and outlet tubes from tank lid ttings.

Disconnect all wiring from thermostat, hi-limit and heating
element.

Loosen the two nuts at the ends of the 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.

Disconnect all wiring from thermostat only. Loosen and free jam
nut from pass-thru tting securing temperature sensing bulb.
Remove two screws holding thermostat to bracket.

Lift out thermostat, sensing bulb and thermostat gasket.

Reassemble in reverse order.

IMPORTANT: Water pressure

must be between 20 p.s.i and

90 p.s.i. owing pressure.

If water pressure exceeds this
value, or if water pressure
varies greatly, a pressure
regulator must be installed in
the water supply line.

Fig. 11 Adjust Solenoid Timer

IMPORTANT: Before set-

ting assembly into tank, make
sure tank lid gasket is properly
seated on ange of lid.

IMPORTANT: When mounting

thermostat, be sure a new seal
washer is placed below the
tting on the capillary line.
Push sensing bulb thru tank lid
until tting seats.

REPLACE HEATING ELEMENT

Remove tank lid assembly per above.

Remove two hex nuts holding element to cover. Pull element
from mounting holes.

Reassemble in reverse order.

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

13

If replacing gray-bodied thermo
with p/n 8512-51, be sure to
remove tube from thermowell.

Tighten capillary lock nut only
enough to ensure no water
leakage. Excessive tightening
is not necessary.

IMPORTANT: When replacing

heating element, also replace
seal gaskets.

SERVICING INSTRUCTIONS (continued)

IL1691

STRAINER

SCREEN

WATER INLET

FITTING

WASHER

REPLACE SOLENOID

Symptom: Automatic brewer will not ow water; or,
automatic brewer drips continuously from brew head.

Unplug power cord or turn circuit breaker OFF. Turn OFF and

disconnect water supply from brewer inlet tting. Remove rear
access panel.

Unscrew water inlet piping from solenoid.

Remove solenoid from brewer.

Note position of brew water and bypass water tubes on solenoid
Remove tubes from solenoid.

Disconnect wiring from solenoid.

Reassemble in reverse order.

CLEAN SOLENOID SCREEN

Symptom: Automatic brewer will not ow water.

Unplug power cord or turn circuit breaker OFF. Turn OFF and

disconnect water supply from brewer inlet tting.

Unscrew water inlet tting from solenoid.

Using needle-nose pliers, withdraw strainer screen from solenoid.
Clean screen under faucet. A stiff bristle brush may be used if
necessary.

Reinsert screen in solenoid. Be careful to maintain correct
orientation. (The

Reassemble in reverse order.

OPEN END of the screen goes in FIRST.)

Fig. 12 Clean Strainer Screen

REPLACE TIMER ASSEMBLY

Unplug power cord or turn circuit breaker OFF.

Remove top wrap. Remove knob and three screws holding timer
to bracket. Disconnect wiring to timer.

Reassemble in reverse order.
Adjust timer as described on page 13

14

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

SERVICING INSTRUCTIONS (continued)

PROCEDURE: Delime the Water Tank

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

FREQUENCY: As required (Brewer slow to heat)

TOOLS: Deliming Solution
Protective Gloves, Goggles & Apron
Mild Detergent, Clean Soft Cloth or Sponge
Bristle Brush, Bottle Brush
Large Sink (or other appropriate work area)

1. Unplug power cord. Turn off the water shut-off valve and
disconnect the water supply line from the brewer inlet tting.

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.

4. Mix 2 quarts of deliming solution according to the manufac-

turer’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 manufac-

turer.

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 to remove lime and calcium
build-up. Rinse with clean water. Store lid assembly in a safe
location.

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.

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 lid clamps.

8. Reinstall wiring to heating element and thermostat.

Reassemble piping for the faucet. Verify that all internal com-

ponents are dry, then reinstall the top panel.

9. Reconnect brewer to electrical supply and reconnect water
supply.

10. Install the brew chamber without lter paper or grounds. Run

at least three full brew cycles and discard all water gener-

ated.

11. Brewer is ready to use.

CAUTION:

CHEMICAL BURN
HAZARD

Deliming chemicals are caustic.
Wear appropriate protective
gloves and goggles during this
procedure.
Never siphon deliming
chemicals or solutions by
mouth.

This operation should only be
performed by qualied and
experienced service personnel.

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.

IMPORTANT:

any internal components to
come into contact with the
deliming solution. Take care to
keep all internal components
dry.

NOTE: Repeat steps 4 thru 5

as required to remove all scale
and lime build-up.

NOTE: Normally, silicone

hoses do not need to be
delimed. Should deliming hoses
become necessary, Bloomeld
recommends replacing the
hoses.

DO NOT allow

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

15

IL1692

EXPLODED VIEW: 8740 TEA BREWER

Model 8740

16

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

PARTS LIST: 8740 TEA BREWER

ITEM PART # DESCRIPTION APPLICATION

1 WRAP, TOP COVER
2 F4-72186 SPRAY DISK
3 2V-70102 VENT, TUBE SHORT
4 WS-8512-51 THERMOSTAT
5 2K-72241 CONNECTOR
6 2V-70398 VENT, TUBE LONG
7 2T-47499 THERMO, HI-LIMIT
8 2V-76439 TUBE, SPRAYHEAD

9 2K-70130 ELBOW, SPRAYER
10 PLATE, BASIN
11 2M-76441 LABEL, BASIN
12 2E-71259 SWITCH, STOP BREW
13 2E-72214 SWITCH, TANK HEATER
14 2E-70733 SWITCH, START BREW
15 2J-70644 LIGHT PILOT GREEN 250V 230K, 230V
15 2J-72671 LIGHT, PILOT GREEN
16 2D-73101 BREW CHAMBER
17 2I-72215 GASKET, SPRAYHEAD
18 SPOUT, BYPASS
19 PLATE, BODY MOUNTING
20 BASE
21 STANDOFF
22 SUPPORT, BASE
23 2E-70353 CORD ASSY, 120V 120V
23 2E-72921 CORD & CAP ASSY UK (CE) 230K
23 F4-WL0143 CORD & EU PLUG MALE TERM 230V
24 2K-70215 STRAIN RELIEF
24 2K-70648 STRAIN RELIEF SMALL 230K, 230V
25 F4-76479 DOOR, ACCESS SOLENOID
26 2E-73282 SOLENOID DUAL 120V .60V/.19 GPM
26 2E-Z14023 SOLENOID DUAL .6/.19 240V 230K, 230V
27 2P-70431 TIMER, 8 MIN
27 2P-72478 TIMER 8-MIN 240V 230K
28 BRACKET, TIMER
29 TUBE, .313 x 33” SILICONE
31 SPACER, TANK
32 2D-70110 TANK BODY
33 2I-70147 GASKET, TANK
34 2N-70143UL ELEMENT, 120V 1500W
34 2N-70173UL ELEMENT, 240V 1800W TANK 230K, 230V
35 2I-70152 GASKET, HEAT ELEMENT
36 LID, TANK
37 2C-70175 NUT, HEAT ELEMENT
38 2I-72390 GROMMET

2C-70134 STRAP, TANK HOLD-DOWN

39
40 2K-70103 ELBOW, OUTLET
41 2V-73034 TUBE, FILL 90º BEND
42 LOWER HOUSING
43 2P-70714 BUTTON PLUG 7/8”
44 2P-70053 BUTTON PLUG, 2”

2P-73318 PLUG, LID .510 (not shown)
2P-73320 PLUG, LID .687 (not shown)

17

SERVICE KITS

SCREEN

WASHER

INLET

FITTING

CAP

IL1693

SERVICE KITS

SOLENOID REPAIR KITS

2E-73282 Solenoid, Complete, Dual
WS-85218 Inlet Fitting Kit (includes cap, inlet tting, washer and screen)
WS-85219 Inlet Strainer

18

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

WIRING DIAGRAM

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

19

NOTES

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

NOTES

608 p/n 2M-76467 8740 Tea Brewer Owners Manual

10 Sunnen Drive, St. Louis, MO 63143

telephone: [phone] fax: [phone]

www.wellsbloomfield.com