608
BLOOMFIELD INDUSTRIES
10 Sunnen Drive
St. Louis, MO 63143
telephone: 314-678-6336
fax: 314-781-2714
w w w .w ellsb loom field .c om
OWNERS MANUAL
for
ICED TEA
BREWING SYSTEM
MODEL
8740
Inc l ud es:
Inst al l at ion
Op er at ion
Use & Car e
Ser v ic ing Inst r uc t ions
M odel 8 7 4 0 B r ewer
p /n 2 M -
7 6 4 6 7
R ev . F
M 6 0 8
1 0
1 1 2 3
WARRANTY STATEMENT
A ll elec tric al eq uipm ent m anufac tured b y W E LLS
B LOOMF I E LD, LLC is w arranted ag ainst d efec ts in m aterials
and w ork m anship for a period of one y ear from the d ate 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 c arry a 30 d ay parts w arranty only .
b. dispensers; i.e., tea and coffee carry a 90 days parts
w arranty only , exc lud es d ec anters.
T H
IN
OR
ME
P U
E F OR E
LI E U OF
I MP LI E
R C H A N
R P OSE
G OI N G OB LI G
A N Y OT H E R
D, I N C LU DI N
T A B I LI T Y OR
,W H IC H A R E
I t also d oes not apply if the serial nam eplate has b een
rem oved or unauthoriz ed servic e personnel perform servic e.
The prices charged by Bloomfield Industries for its products
are b ased upon the lim itations in this w arranty . Seller’ s
ob lig ation und er this w arranty is lim ited to the repair of
defects without charge by a Bloomfield Authorized Service
A g enc y or one of its sub -ag enc ies. T his servic e w ill b e
provid ed on c ustom er’ s prem ises for non-portab le m od els.
Portable models (a device with a cord and plug) must be
tak en or shipped to the c losest A uthoriz ed Servic e A g enc y ,
transportation c harg es prepaid , for servic es.
A T I ON I S E X P R E SSLY G I V E N
W A R R A N T I E S, E X P R E SSE D
G A N Y I MP LI E D W A R R A N T Y OF
F I T N E SS F OR A P A R T I C U LA R
H E R E B Y E X C LU DE D.
In addition to restrictions contained in this warranty, specific
limitations are shown below (Additional Warranty Exclusions).
Bloomfield Industries Authorized Service Agencies are located
in princ ipal c ities.
W E LLS B LOOMF I E LD, LLC SH A LL N OT B E LI A B LE
F OR I N DI R E C T , I N C I DE N T A L OR C ON SE Q U E N T I A L
DA MA G E S OR LOSSE S F R OM A N Y C A U SE
W H A T SOE V E R .
T his w arranty is valid in the U nited States and void elsew here.
Please consult your classified telephone directory or your food
service equipment dealer; or, for information and other details
c onc erning w arranty , w rite to:
T his w arranty is void if it is d eterm ined that upon inspec tion
b y an A uthoriz ed Servic e A g enc y that the eq uipm ent has
been modified, misused, misapplied, improperly installed, or
damaged in transit or by fire, flood or act of God.
Servic e P arts Departm ent
Wells Bloomfield, LLC
10 Sunnen Drive, St. Louis, MO 63143
Phone: (314) 678-6336...
Fax: (314) 781-2714
SERVICE POLICY AND PROCEDURE GUIDE
ADDITIONAL WARRANTY EXCLUSIONS
3.
4.
5.
6.
7. F ull use, c are and m aintenanc e instruc tions are supplied
w ith eac h m ac hine. T hose m isc ellaneous ad j ustm ents
noted are c ustom er responsib ility . P roper attention w ill
prolong the life of the m ac hine.
8. Travel mileage is limited to sixty (60) miles from an
authoriz ed Servic e A g enc y or one of its sub -ag enc ies.
9. All labor shall be performed during normal working hours.
Overtim e prem ium shall b e c harg ed to the c ustom er.
10. All genuine Bloomfield replacement parts are warranted
for ninety (90) days from date of purchase on nonw arranted eq uipm ent. Any use of non-genuine
Bloomfield parts completely voids any warranty.
11. I nstallation, lab or and j ob c hec k -out are not c onsid ered
w arranty .
12. C harg es inc urred b y d elay s, w aiting tim e or operating
restric tions that hind er the servic e tec hnic ians ab ility
to perform servic es are not c overed b y w arranty .
T his inc lud es institutional and c orrec tional fac ilities.
SHIPPING DAMAGE CLAIMS PROCEDURE
N OT E : F or y our protec tion, please note that eq uipm ent in
this shipm ent w as c arefully inspec ted and pac k ag ed b y sk illed
personnel b efore leaving the fac tory .
U pon ac c eptanc e of this shipm ent, the transportation
c om pany assum es full responsib ility for its safe d elivery .
IF SHIPMENT ARRIVES DAMAGED:
1. VISIBLE LOSS OR DAMAGE: B e c ertain that any
visib le loss or d am ag e is noted on the freig ht b ill
or express rec eipt, and that the note of loss or d am ag e
is sig ned b y the d elivery person.
2. FILE CLAIM FOR DAMAGE IMMEDIATELY:
R eg ard less of the extent of the d am ag e.
3.
C ON C E A LE D LOSS OR DA MA G E : if d am ag e is
unnotic ed until the m erc hand ise is unpac k ed , notify the
transportation c om pany or c arrier im m ed iately , and
file “CONCEALED DAMAGE” claim with them. This
must be done within fifteen (15) days from the date
the d elivery w as m ad e to y ou. B e sure to retain the
c ontainer for inspec tion.
Wells Bloomfield cannot assume liability for damage or loss
inc urred in transit. W e w ill, how ever, at y our req uest, supply
y ou w ith the nec essary d oc um ents to support y our c laim .
xi
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2.
R esetting of safety therm ostats, c irc uit b reak ers,
overload protec tors, or fuse replac em ents unless
w arranted c ond itions are the c ause.
A ll prob lem s d ue to operation at voltag es other than
specified on equipment nameplates; conversion to
c orrec t voltag e m ust b e the c ustom er’ s responsib ility .
A ll prob lem s d ue to elec tric al c onnec tions not m ad e in
ac c ord anc e w ith elec tric al c od e req uirem ents and
w iring d iag ram s supplied w ith the eq uipm ent.
R eplac em ent of item s sub j ec t to norm al w ear, to
inc lud e suc h item s as k nob s and lig ht b ulb s. N orm al
m aintenanc e func tions inc lud ing ad j ustm ent of
therm ostats, m ic rosw itc hes, and replac em ent of fuses
and ind ic ating lig hts are not c overed und er w arranty .
All problems due to inadequate water supply, such as
fluctuating, or high or low water pressure.
A ll prob lem s d ue to m ineral/ c alc ium d eposits, or
c ontam ination from c hlorid es/ c hlorines. De-lim ing is
c onsid ered a preventative m aintenanc e func tion and is
not c overed b y w arranty .
6 0 8
1.
TABLE OF CONTENTS
W A R R A N T Y ST A T E ME N T
SP E C I F I C A T I ON S
F E A T U R E S & OP E R A T I N G C ON T R OLS
P R E C A U T I ON S & G E N E R A L I N F OR MA T I ON
A G E N C Y LI ST I N G I N F OR MA T I ON
I N ST A LLA T I ON I N ST R U C T I ON S
OP E R A T I ON
B R E W IN G T E A
C LE A N I N G I N ST R U C T I ON S
T R OU B LE SH OOT I N G SU G G E ST I ON S
SE R V I C I N G I N ST R U C T I ON S
Deliming Instructions
E X P LODE D V I E W & P A R T S LI ST
W I R I N G DI A G R A MS
xi
1
2
3
3
4
6
8
9
10
11
15
16
19
INTRODUCTION
Thank You for purchasing this Wells Bloomfield 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 Gal l on Ic e Tea Br ew er s
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MODEL
8 7 4 0
8 7 4 0 -3 5G
8 7 4 0 -3 5GUK
DIMENS IONS
3 4 -1/ 4 ” h i g h ,
11-1/ 4 ” w i d e ,
19 -2 7 / 3 2 ” d e e p
V OLTS
W ATTS
AMPS 1ø
POW ER S UPPLY CORD
12 0 V
1515
13
NEMA 5-15P
2 2 0 -2 4 0 V
18 0 0
7 .8 3
CEE 7 / V II
2 2 0 -2 4 0 V
18 0 0
7 .8 3
CW
APPLICABILITY
This manual applies to the following Wells Bloomfield product:
8740 3 - 5 Gallon Tea Brewer
1
3 10 0
F ig . 1
M odel 8 7 4 0 F ea t u r es a n d O p er a t in g C on t r ols
2
6 0 8
I L1684
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FEATURES AND OPERATING CONTROLS
PRECAUTIONS
PRECAUTIONS AND
AND GENERAL
GENERAL INFORMATION
INFORMATION
WARNING
WARNING: ELECTRIC SHOCK HAZ ARD
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: INJ URY HAZ ARD
WARNING
WARNING
WARNING
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 HAZ ARD
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
Injury.
WARNING: BURN HAZ ARD
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
qualified service personnel.
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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.
CAUTION:
EQ UIPMENT DAMAGE
DO NOT plug in or energize this
appliance until all I n st a lla t ion
I n st r u ct ion s are read and followed.
Damage to the Brewer will occur if
these instructions are not followed.
CAUTION:
BURN HAZ ARD
Exposed surfaces of the
appliance, brew chamber and
dispenser may be HOT to the
touch, and can cause serious
burns.
AGENCY LISTING INFORMATION
This brewer is
listed under UL file E9253.
This brewer meets
Standard 4 only when installed,
operated and maintained in accordance with the enclosed
instructions.
E 9 25 3
STD 4
3 3
E 9 25 3
INSTALLATION
READ THIS CAREFULLY BEFORE STARTING THE INSTALLATION
EQ UIPMENT DAMAGE
E
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:
U
UNSTABLE
EQ UIPMENT HAZ ARD
E
It is very important for safety
and for proper operation that the
brewer is level and stable when
standing in its final operating
position.
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 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.
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 flush the line prior to installing the saddle.
The brewer must be installed on a water line with average
pressure between 20 PSI and 90 PSI. If your water pressure
exceeds 90 PSI at anytime, a pressure regulator must be
installed in the water supply line to limit the pressure to not more
than 90 PSI in order to avoid damage to lines and solenoid.
A water shut-off valve should be installed on the incoming water
line in a convenient location (Use a low restriction type valve,
such as a 1/4-turn ball valve, to avoid loss of water flow thru the
valve.
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.
C O P P E R L O O P S
(P R O V ID E D B Y P L U M B E R )
W A T E R IN L E T
F IT T IN G
S H U T -O F F V A L V E
(P R O V ID E D B Y P L U M B E R )
W A T E R
S U P P L Y
S T R A IN E R
S C R E E N
F L O W
F ig . 2 W a t er S u p p ly I n st a lla t ion
4
W A S H E R
I L1685
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CAUTION:
Unpack the unit. Inspect all components for completeness and
condition. Ensure that all packing materials have been removed
from the unit.
6 0 8
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:
INSTALLATION (c ont inued )
R E F E R T O E LE C T R I C A L SP E C I F I C A T I ON S - P ag e 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.
Mod el 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 filler 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 O N and the “TANK HEATER SWITCH” is O F F .
Connect the unit to electric power.
Press the “START BREW” switch to initiate a brew cycle. The
solenoid will open and begin filling the tank. Initiate consecutive
brew cycles until water begins to flow 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
HAZ ARD
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.
GROUND
PIN
NEMA 5-15P
PLUG
NEMA 5-15R
RECEPTACLE
Fig. 3 Plug Configuration
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.
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WARNING
I L1686
ELECTRICIAN’ S INSTALLATION INSTRUCTIONS
5
IMPORTANT: Do not connect
brewer to electrical power until
you are ready to fill the tank.
See instructions at left.
OPERATION
I L1687
B r ewer O p er a t ion D ia g r a m
A. START-UP
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.
• Be sure the water supply is properly connected and the water
supply valve is turned O N .
• 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
place under the brew chamber.
2. Be sure the TANK HEATER SWITCH is “O F F ”. Plug the unit into an
appropriate receptacle.
3. Press The BREW switch. Water will start filling the tank. Run
several consecutive brew cycles until water flows from the brew
chamber.
4. When water stops dripping from the brew chamber, empty the
dispenser, then press TANK HEAT switch “O N ”. 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.
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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
is N O T C O V E R E D B Y
W A R R A N T Y .
6 0 8
F ig . 4
OPERATION (c ont inued )
WATER HEATER
H I-L IM IT
T H E R M O S T A T
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.
T H E R M O B U L B
Excessive temperature will trip the hi-limit safety
switch. The hi-limit will automatically reset when
the brewer cools.
H E A T IN G
E L E M E N T
T H E R M O S T A T
WATER FLOW
F ig . 5
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 flow 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.
H ea t C on t r ol D ia g r a m
B R E W
S O L E N O ID
The solenoid uses a flow control device so that
flow is consistent between 20 p.s.i. and 90 p.s.i.
T IM E R
The length of time the solenoid is open is
controlled by the timer setting.
I L1689
B Y P A S S
S O L E N O ID
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F ig . 6
6 0 8
B R E W
T A N K
7
W a t er F low D ia g r a m
D IL U T IO N
BREWING TEA
Exposed surfaces of the
brewer, brew chamber and
dispenser may be HOT to
the touch, and can cause
serious burns.
CAUTION:
BURN HAZ ARD
To avoid splashing or
overflowing 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 HAZ ARD
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 Bloomfield
paper filter 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.
I L1605
F ig . 7
T ea B r ew C h a mber
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 E M P T Y 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 fill the
dispenser. Additionally, a measured amount of cold dilution water
will flow from the bypass nozzle into the dispenser.
When the flow 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.
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BURN HAZ ARD
6 0 8
CAUTION:
CLEANING INSTRUCTIONS
PROCEDURE: Cl ean Tea Br ew er
CAUTION:
PRECAUTIONS: Disconnect brewer from electric power.
Allow brewer to cool.
FREQUENCY:
Daily
TOOLS:
Mild Detergent, Clean Soft Cloth or Sponge
Bristle Brush, Bottle Brush
BURN HAZ ARD
Brewing and serving
temperatures of tea are
extremely hot.
Hot tea will cause serious skin
burns.
CAUTION:
SHOCK
1. Disconnect brewer from electric power.
Allow brewer to cool before cleaning.
2. Remove dispenser.
HAZ ARD
Do not submerge or immerse
brewer in water.
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.
IMPORTANT:
DO NOT use steel wool, sharp
objects, or caustic, abrasive or
chlorinated cleansers to clean
the brewer or dispensers.
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. Rinse with clean water and allow to air dry.
G A S K E T
S P R A Y
D IS K
8. Wipe the exterior of the brewer with a soft clean cloth or
sponge moistened with clean water.
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9. Reinstall the gasket INSIDE the brew head, and then reinstall
the spray disk.
10. Clean dispensers by filling 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
9
L IF T E A R S U P
T U R N L E F T T O
R E M O V E
IL 1 6 9 0
F ig . 8
C lea n in g
TROUBLESHOOTING SUGGESTIONS
Te a l e v e l t o o h i g h o r l o w
Brew chamber overflows
S p ra y s w a te r fro m b re w
h e a d
No b r e w
Po o r c o f f e e q u a l i t y
SUGGESTED REMEDY
B r e w e r u n p lu g g e d o r c ir c u it b r e a k e r
tr ip p e d
Ch e c k p o w e r s u p p l y c o r d
Ta n k h e a t e r s w i t c h OF F
Pr e s s s w i t c h t o ON
Te m p e r a t u r e s e t p o i n t t o o l o w
S e t fo r d e s ir e d te m p e r a tu r e
H i -Li m i t s a f e t y s w i t c h t r i p p e d
Al l o w t o c o o l h i -l i m i t w i l l s e l f -r e s e t
Da m a g e d i n t e r n a l c o m p o n e n t o r
w ir in g
Ex a m i n e w i r i n g & c o n n e c t o r s , c o n t r o l l e r , p o w e r
b o a r d a n d h e a t i n g e l e m e n t , Re p a i r / r e p l a c e a s
n e e d e d
Ti m e r o u t o f a d j u s t m e n t
Ad j u s t t i m e r
Too many filter papers or wrong
filter paper
Use one (1) genuine Bloomfield filter per brew
B r e w c h a m b e r d is p e n s e h o le
p lu g g e d
Th o r o u g h l y c l e a n b r e w c h a m b e r
To o m u c h t e a l e a v e s
Us e c o r r e c t a m o u n t o f t e a
S p r a y g a s k e t im p r o p e r ly in s ta lle d
Ch e c k / r e i n s t a l l g a s k e t o n INS IDE o f b r e w h e a d
S p r a y d is k p lu g g e d
Cl e a n s p r a y d i s k
Da m a g e d i n t e r n a l c o m p o n e n t o r
w ir in g
Ch e c k s w i t c h e s , t i m e r a n d s o l e n o i d . Re p a i r ,
r e p la c e a s n e e d e d
W a t e r s u p p l y OF F
Tu r n w a t e r s u p p l y ON
S o le n o id in le t s tr a in e r p lu g g e d
Cl e a n s t r a i n e r
Water filter (if used) plugged
Replace filter element
Ch e c k / r e s e t c i r c u i t b r e a k e r
Keep brewer and dispenser clean. Install a taste and odor filter in water supply, and
r e p l a c e c a r t r i d g e s r e g u l a r l y . Us e a q u a l i t y f r e s h s u p p l y o f t e a l e a v e s . Us e a m o u n t o f
te a le a v e s a p p r o p r ia te to b r e w v o lu m e .
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
W a te r w o n ’t h e a t
POSSIBLE CAUSE
10
6 0 8
SYMPTOM
SERVICING INSTRUCTIONS
ACCESS PLUGS
Use a small flat-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.
CAUTION:
SHOCK
Opening access panels on this
brew may expose uninsulated
electrical components.
Disconnect brewer from
electrical power before
removing any panel.
N OT E ;
Time and temperature controls
may be accessed without
removing cabinet panels by
removing the appropriate hole
plug from the top wrap.
Rear panel is held by two screws and a retaining lip.
L E F T H O L E P L U G
( T I M E R A D JU S T )
T O P W R A P
6 0 8
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
R IG H T H O L E P L U G
( T H E R M O S T A T A D UJ
R E A R
I L169 0
F ig . 8 A ccess P a n els
11
P A N E L
HAZ ARD
S T )
SERVICING INSTRUCTIONS (c ont inued )
CAUTION:
SHOCK
HAZ ARD
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).
Energize brewer and allow unit to heat. When the READY TO
BREW light first 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.
I L1601
1 0 0
T E M P .(° C )
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 ADJ USTMENT
9 7
9 4
9 1
0
0
1, 0
65
0
1,
80
1, 0
95
I L1602
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
E L E V A T I O N ( met er s a bove sea leve l)
B oilin g T emp er a t u r e by A lt it u de
12
6 0 8
A dj u st T h er most a t
1,
5
0
F ig . 1 0
T a ble 1
75
0
45
0
60
0
0
15
0
30
0
I L1606
90
0
1,
05
0
1,
20
1, 0
35
8 8
SERVICING INSTRUCTIONS (c ont inued )
SOLENOID TIMER ADJ USTMENT
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.
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.
REMOVE TANK LID ASSEMBLY
Unplug brewer or turn circuit breaker O F F . Turn O F F water
supply. Remove top wrap.
Disconnect brew fill and outlet tubes from tank lid fittings.
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 O F F . Turn O F F water
supply. Remove top panel.
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.
Reassemble in reverse order.
6 0 8
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
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.
IL1679
F ig . 1 1
A dj u st S olen oid T imer
IMPORTANT: Before setting assembly into tank, make
sure tank lid gasket is properly
seated on flange of lid.
IMPORTANT: W hen m ounting
thermostat, be sure a new seal
washer is placed below the
fitting on the capillary line.
Push sensing bulb thru tank lid
until fitting seats.
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.
13
SERVICING INSTRUCTIONS (c ont inued )
REPLACE SOLENOID
Symptom: Automatic brewer will not flow water; or,
automatic brewer drips continuously from brew head.
Unplug power cord or turn circuit breaker O F F . Turn O F F and
disconnect water supply from brewer inlet fitting. 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 flow water.
S T R A IN E R
S C R E E N
Unplug power cord or turn circuit breaker O F F . Turn O F F and
disconnect water supply from brewer inlet fitting.
W A S H E R
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.
W A T E R IN L E T
F IT T IN G
Reinsert screen in solenoid. Be careful to maintain correct
orientation. (The O P E N E N D of the screen goes in F I R S T .)
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
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
F ig . 1 2 C lea n S t r a in er S cr een
Reassemble in reverse order.
14
6 0 8
IL 1 6 9 1
SERVICING INSTRUCTIONS (c ont inued )
PROCEDURE: Del im e t he Wat er Tank
CAUTION:
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 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.
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 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.
6 0 8
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
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 components are dry, then reinstall the top panel.
9. Reconnect brewer to electrical supply and 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.
15
CHEMICAL BURN
HAZ ARD
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 qualified 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: DO N OT allow
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, Bloomfield
recommends replacing the
hoses.
16
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
I L169 2
6 0 8
EXPLODED VIEW: 8740 TEA BREWER
M odel 8 7 4 0
PARTS LIST: 8740 TEA BREWER
ITEM
PART #
1
2
F 4 -7 2 18 6
S PRAY DIS K
3
2 V -7 0 10 2
V ENT, TUB E S H ORT
4
W S -8 512 -51
TH ERMOS TAT
5
2 K -7 2 2 4 1
CONNECTOR
6
2 V -7 0 3 9 8
V ENT, TUB E LONG
7
2 T-4 7 4 9 9
TH ERMO, H I-LIMIT
8
2 V -7 6 4 3 9
TUB E, S PRAY H EAD
9
2 K -7 0 13 0
ELB OW , S PRAY ER
10
2 M-7 6 4 4 1
LAB EL, B AS IN
12
2 E-7 12 59
S W ITCH , S TOP B REW
13
2 E-7 2 2 14
S W ITCH , TANK H EATER
14
2 E-7 0 7 3 3
S W ITCH , S TART B REW
15
2 J -7 0 6 4 4
LIGH T PILOT GREEN 2 50 V
15
2 J -7 2 6 7 1
LIGH T, PILOT GREEN
16
2 D-7 3 10 1
B REW
17
2 I-7 2 2 15
GAS K ET, S PRAY H EAD
2 3 0 K , 2 3 0 V
CH AMB ER
18
S POUT, B Y PAS S
19
PLATE, B ODY MOUNTING
2 0
B AS E
2 1
S TANDOF F
S UPPORT, B AS E
2 3
2 E-7 0 3 53
CORD AS S Y , 12 0 V
12 0 V
2 3
2 E-7 2 9 2 1
CORD & CAP AS S Y UK ( CE)
2 3 0 K
2 3 0 V
2 3
F 4 -W L0 14 3
CORD & EU PLUG MALE TERM
2 4
2 K -7 0 2 15
S TRAIN RELIEF
2 4
2 K -7 0 6 4 8
S TRAIN RELIEF S MALL
2 5
F 4 -7 6 4 7 9
DOOR, ACCES S S OLENOID
2 6
2 E-7 3 2 8 2
S OLENOID DUAL 12 0 V . 6 0 V / . 19 GPM
2 6
2 E-Z 14 0 2 3
S OLENOID DUAL . 6 / . 19 2 4 0 V
2 7
2 P-7 0 4 3 1
TIMER, 8 MIN
2 7
2 P-7 2 4 7 8
TIMER 8 -MIN 2 4 0 V
2 8
B RACK ET, TIMER
2 9
TUB E, . 3 13 x 3 3 ” S ILICONE
3 1
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
APPLICATION
PLATE, B AS IN
11
2 2
6 0 8
DES CRIPTION
W RAP, TOP COV ER
2 3 0 K , 2 3 0 V
2 3 0 K , 2 3 0 V
2 3 0 K
S PACER, TANK
3 2
2 D-7 0 110
TANK B ODY
3 3
2 I-7 0 14 7
GAS K ET, TANK
3 4
2 N-7 0 14 3 UL
ELEMENT, 12 0 V 150 0 W
3 4
2 N-7 0 17 3 UL
ELEMENT, 2 4 0 V 18 0 0 W TANK
3 5
2 I-7 0 152
GAS K ET, H EAT ELEMENT
3 6
LID, TANK
3 7
2 C-7 0 17 5
NUT, H EAT ELEMENT
3 8
2 I-7 2 3 9 0
GROMMET
3 9
2 C-7 0 13 4
S TRAP, TANK H OLD-DOW N
4 0
2 K -7 0 10 3
ELB OW , OUTLET
4 1
2 V -7 3 0 3 4
4 2
TUB E, F ILL 9 0 º B END
LOW ER H OUS ING
4 3
2 P-7 0 7 14
B UTTON PLUG 7 / 8 ”
4 4
2 P-7 0 0 53
B UTTON PLUG, 2 ”
2 P-7 3 3 18
PLUG, LID . 510 ( n o t s h o w n )
2 P-7 3 3 2 0
PLUG, LID . 6 8 7 ( n o t s h o w n )
17
2 3 0 K , 2 3 0 V
SERVICE K ITS
S C R E E N
W A S H E R
IN L E T
F IT T IN G
I L169 3
C A P
SERVICE K ITS
SOLENOID REPAIR KITS
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
Solenoid, Complete, Dual
Inlet Fitting Kit (includes cap, inlet fitting, washer and screen)
Inlet Strainer
18
6 0 8
2E-73282
WS-85218
WS-85219
6 0 8
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
WIRING DIAGRAM
19
6 0 8
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
NOTES
6 0 8
p / n 2 M - 7 6 4 6 7 8 7 4 0 T ea B r ewer O wn er s M a n u a l
NOTES
10 Sunnen Drive, St. Louis, MO 63143
telephone: 314-678-6336 fax: 314-781-2714
www.wellsbloomfield.com
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