Bloomfield 0420 User Manual

686  
BLOOMFIELD INDUSTRIES  
2 ERIK CIRCLE, P. O. Box 280  
Verdi, NV 89439  
telephone: 775-689-5700  
fax: 888-492-2783  
OWNERS MANUAL  
For  
COFFEE BREWERS  
MODELS:  
0420 Automatic Airpot  
Brewer  
INCLUDES:  
Installation  
Operation  
Use & Care  
Servicing Instructions  
Model: 0420 Airpot Brewer  
PRINTED IN CHINA  
p/n 77111 Rev. B ECN-12887  
M686 050622 cps  
TABLE OF CONTENTS  
WARRANTY STATEMENT  
SPECIFICATIONS  
FEATURES & OPERATING CONTROLS  
Thank You for purchasing this  
Bloomfield Industries appliance.  
xi  
1
2
Proper installation, professional  
operation and consistent  
PRECAUTIONS & GENERAL INFORMATION 3  
AGENCY LISTING INFORMATION  
INSTALLATION INSTRUCTIONS  
OPERATION  
3
4
7
8
9
maintenance of this appliance will  
ensure that it gives you the very  
best performance and a long,  
economical service life.  
Program Volume Select Keys  
Brew Coffee  
This manual contains the  
CLEANING INSTRUCTIONS  
TROUBLESHOOTING SUGGESTIONS  
SERVICING INSTRUCTIONS  
Deliming Instructions  
EXPLODED VIEW & PARTS LIST  
WIRING DIAGRAMS  
10  
11  
12  
17  
18  
21  
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  
AMPS  
1ø  
POWER SUPPLY  
CORD  
MODEL  
STYLE  
FEATURES VOLTS WATTS  
AUTOMATIC  
LO-PROFILE  
AIRPOT  
HOT  
WATER  
DISPENSER  
0420  
120 VAC 1500  
12.5  
NEMA 5-15P  
Also meets Canadian Standards  
APPLICABILITY  
This manual applies to the following Bloomfield Industries product:  
0420  
1
FEATURES AND OPERATING CONTROLS - AUTOMATIC BREWERS  
Fig. 1 Features & Operating Controls for Automatic Brewers  
2
PRECAUTIONS AND GENERAL INFORMATION  
WARNING: ELECTRIC SHOCK HAZARD  
All servicing requiring access to non-insulated components must be performed by qualified  
service personnel. Do not open any access panels which require the use of tools.  
Failure to heed this warning can result in electrical shock.  
WARNING: INJURY HAZARD  
All installation procedures must be performed by qualified personnel with full knowledge of all  
applicable electrical and plumbing codes. Failure could result in property damage and  
personal injury.  
WARNING: ELECTRIC SHOCK HAZARD  
Brewer must be properly grounded to prevent possible shock hazard. DO NOT assume a  
plumbing line will provide such a ground. Electrical shock will cause death or serious Injury.  
WARNING: BURN HAZARD  
This appliance dispenses very hot liquid. Serious bodily injury from scalding can occur from  
contact with dispensed liquids.  
This appliance is intended for commercial use only.  
CAUTION:  
ELECTRICAL DAMAGE  
This appliance is intended for use to brew beverage products for  
human consumption. No other use is recommended or  
authorized by the manufacturer or its agents.  
DO NOT plug in or energize this  
appliance until all Installation  
Instructions are read and followed.  
Damage to the Brewer will occur if  
these instructions are not followed.  
This appliance is intended for use in commercial establishments,  
where all operators are familiar with the appliance use,  
limitations and associated hazards. Operating instructions and  
warnings must be read and understood by all operators and  
users.  
CAUTION:  
BURN HAZARD  
The following trouble shooting, component views and parts lists  
are included for general reference, and are intended for use by  
qualified service personnel.  
Exposed surfaces of the  
appliance, brew chamber and  
airpot may be HOT to the touch,  
and can cause serious burns.  
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.  
E9253  
E9253  
This brewer meets  
Standard 4 only when installed,  
operated and maintained in accordance with the enclosed  
instructions.  
STD 4  
3
INSTALLATION  
READ THIS CAREFULLY BEFORE STARTING THE INSTALLATION  
IMPORTANT:  
Unpack the unit. Inspect all components for completeness and  
condition. Ensure that all packing materials have been removed  
from the unit.  
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:  
Verify that the Spray Head Gasket and Spray Disk are properly  
installed.  
LEVELING THE UNIT  
Verify that an adjustable leg is installed at each of the five  
locations on the bottom of the brewer.  
CAUTION:  
ELECTRICAL  
DAMAGE  
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.  
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.  
Level the unit from left to right and front to back by turning the  
adjustable feet. Be sure all feet touch the counter to prevent  
tipping.  
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 final operating  
position. Provided adjustable,  
feet or 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.  
4
INSTALLATION (continued)  
PLUMBER’S INSTALLATION INSTRUCTIONS  
CAUTION:  
ELECTRICAL  
DAMAGE  
Brewer should be connected to a POTABLE WATER, COLD  
WATER line. Flush water line before connecting to Brewer.  
DO NOT plug in or energize this  
appliance until all Installation  
Instructions are read and  
followed. Damage to the  
Brewer will occur if these  
instructions are not followed.  
DO NOT use a saddle valve with a self-piercing tap for the water  
line connection. Such a tap can become restricted by waterline  
debris. For systems that must use a saddle tap, shut off the main  
water supply and drill a 3/16” (minimum) tap for the saddle  
connection, in order to insure an ample water supply. Remember  
to flush the line prior to installing the saddle.  
The brewer must be installed on a water line with average  
pressure between 20 PSI and 90 PSI. If your water pressure  
exceeds 90 PSI at anytime, a pressure regulator must be  
installed in the water supply line to limit the pressure to not more  
than 90 PSI in order to avoid damage to lines and solenoid.  
NOTE: Water supply inlet line  
must meet certain minimum  
criteria to insure successful  
operation of the brewer.  
Bloomfield recommends 1/4"  
copper tubing for installation of  
less than 12 feet and 3/8" for  
more than 12 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. Loops of copper tubing will satisfy this requirement.  
See Figure 2 below.  
NOTE: This equipment must be  
installed to comply with  
applicable federal, state and  
local plumbing codes and  
ordinances.  
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.  
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.  
5
INSTALLATION (continued)  
ELECTRICIAN’S INSTALLATION INSTRUCTIONS  
WARNING:  
SHOCK HAZARD  
REFER TO ELECTRICAL SPECIFICATIONS - Page 1  
Check the nameplate to determine correct electrical service  
required for the Brewer to be installed.  
Brewer must be properly  
grounded to prevent possible  
shock hazard. DO NOT  
assume a plumbing line will  
provide such a ground.  
IMPORTANT: Before connecting to electricity, make sure  
brewer is connected to the water supply.  
All models are equipped with a cord and plug. They require a  
115 - 125 volt 20 amp circuit (50/60 Hz, 2 wire plus ground, with  
NEMA 5-15R or 5-20R Receptacle).  
Electrical shock will cause death  
or serious injury.  
See Figure 3 at right.  
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:  
Do not connect brewer to  
electrical power until you are  
ready to fill the tank. See  
instructions on page 7.  
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.  
GROUND  
PIN  
NEMA 5-15R  
RECEPTACLE  
NEMA 5-15P  
PLUG  
Fig. 3 Power Supply Plug  
6
OPERATION  
Fig. 4 Water Flow Diagram  
IMPORTANT:  
A. START-UP  
TANK MUST BE FULL  
OF WATER BEFORE  
CONNECTING BREWER  
TO ELECTRIC POWER.  
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.  
Heating elements will be  
damaged if allowed to  
operate without being  
fully submerged in water.  
Damage caused by  
operating the brewer  
without water in the tank  
is NOT COVERED BY  
WARRANTY.  
Be sure the water supply is properly connected and the water  
supply valve is turned ON and that TANK HEATER SWITCH  
is OFF before connecting brewer to electric power.  
Be sure the WATER TANK IS FILLED.  
IMPORTANT: Fill the water tank before energizing this brewer.  
1. Connect brewer to electric power. Brewer will begin filling. When  
solenoid closes, tank is full.  
See page 8 for setting  
delivered water volumes  
for VOLUME SELECTION  
KEYS.  
2. Place an empty container in the hot water well. Press the HOT  
WATER DISPENSER BUTTON and dispense one cup of water.  
Tank should refill. Discard water.  
3. Press TANK HEATER SWITCH to ON.  
4. When READY light glows, brewer is ready to use.  
7
OPERATION (continued)  
B. PROGRAM BREW VOLUMES  
Each BREW VOLUME SELECT KEY is individually  
programmable.  
Keys may be programmed for pulse brewing to optimize  
contact times and extraction rates, or to minimize overflowing  
the brew chamber when using large amounts of grounds.  
Up to 10 pulses may be programmed. Each pulse delay is  
fixed at 15 seconds.  
1. Place an empty airpot under the brew head. Install the brew  
chamber (without filter) under the brew head  
2. Press and hold BREW key until beep sounds and the indicator  
lights flash.  
3. Press and release the VOLUME SELECT KEY to be programmed.  
Water will begin to flow into the airpot. When the desired water  
level is reached, press the key again to stop the water flow.  
Fig. 5 Program Volumes  
For pulse brew:  
a. Press the key to start the water flow.  
b. Press the key again to stop the flow after the time desired for  
the first pulse.  
c. Press the key again to resume water flow.  
d. Repeat until desired total delivered volume is reached.  
NOTE: Water flow can be stopped and restarted up to 10 times per  
brew. The delay between pulses is fixed at 15 seconds.  
4. Press the BREW KEY to enter these settings into memory and  
resume normal operation.  
5. Run a normal brew with filter and grounds to verify settings.  
Repeat steps 1 through 4 to program the other VOLUME SELECT KEY,  
or to revise existing settings.  
8
OPERATION - BREWING COFFEE  
CAUTION:  
A. PREPARATION  
BURN HAZARD  
Place one (1) genuine Bloomfield paper filter in the brew chamber.  
Add a pre-measured amount of fresh coffee grounds.  
Exposed surfaces of the  
brewer, brew chamber and  
airpot may be HOT to the  
touch, and can cause  
serious burns.  
Gently shake the brew chamber to level the bed of grounds.  
Slide the brew chamber into place under the brew head.  
CAUTION:  
BURN HAZARD  
To avoid splashing or  
overflowing hot liquids,  
ALWAYS place an EMPTY  
airpot under the brew  
chamber before starting  
the brew cycle. Failure to  
comply can cause serious  
burns.  
Fig. 6 Brew Chamber  
B. AUTOMATIC OPERATION  
Be sure “READY” light is lit.  
Place the appropriate EMPTY airpot in place under the brew  
chamber.  
Press the “BREW” key. A beep will sound and the BREW  
INDICATOR LIGHT will glow for the duration of the brew.  
CAUTION:  
BURN HAZARD  
NOTE: VOLUME 1 (top key) is the default brew volume.  
To brew the OPTIONAL volume:  
Press and release the VOLUME 2 (bottom) KEY. The VOLUME 2  
INDICATOR will glow. Press the “BREW” key. A beep will sound  
and the BREW INDICATOR LIGHT will glow for the duration of the  
brew.  
At the conclusion of this brew, the system will revert to the default  
brew volume, the VOLUME 2 INDICATOR LIGHT will go out, and  
the VOLUME 1 INDICATOR LIGHT will glow.  
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.  
NOTE: Excessive use of  
the hot water dispense  
function during a brew may  
decrease the amount of  
brew water delivered.  
The brew pump will operate for an amount of time determined by  
the selected brew volume, drawing a measured quantity of hot  
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.  
D. PREPARE FOR NEXT BREW  
Discard the contents of the brew chamber and rinse it in a sink.  
When the ”READY ” light glows, the brewer is ready for  
another brew cycle.  
9
CLEANING INSTRUCTIONS  
CAUTION:  
BURN HAZARD  
PROCEDURE: Clean Coffee Brewer  
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:  
SHOCK HAZARD  
1. Disconnect brewer from electric power.  
Allow brewer to cool before cleaning.  
Do not submerge or immerse  
brewer in water.  
2. Remove airpot and any cup.  
3. Remove and empty brew chamber.  
IMPORTANT:  
DO NOT use steel wool, sharp  
objects, or caustic, abrasive or  
chlorinated cleansers to clean  
the brewer or airpots.  
4. Remove the spray disk from the brew head (See figure 7):  
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.  
8. Remove airpot drip tray and both grids. Wash in a sink using  
warm water and a mild detergent. Wipe out hot water drip  
tray with a soft cloth or sponge moistened with warm water.  
Reinstall drip tray and grids.  
Fig. 7 Cleaning  
9. Wipe the exterior of the brewer with a soft clean cloth or  
sponge moistened with clean water.  
10. Reinstall the gasket INSIDE the brew head, then reinstall the  
spray disk.  
11. Reinstall the brew chamber.  
12. Clean airpots 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.  
IMPORTANT: DO NOT submerge airpots in water.  
Procedure is complete  
10  
TROUBLESHOOTING SUGGESTIONS  
SYMPTOM  
POSSIBLE CAUSE  
SUGGESTED REMEDY  
Water won’t heat  
Brewer unplugged or circuit  
breaker tripped  
Check power supply cord  
Check / reset circuit breaker  
Temperature setpoint too low  
Hi-Limit safety switch tripped  
Set for desired temperature  
Allow to cool hi-limit will self-  
reset  
Damaged internal component  
or wiring  
Examine wiring & connectors,  
controller, water level probe and  
heating element  
Repair/replace as needed  
Coffee level too high or low  
Brew chamber overflows  
Volume keys not programmed  
Program volume keys  
Too many filter papers or wrong Use one (1) genuine Bloomfield  
filter paper  
filter per brew  
Brew chamber dispense hole  
plugged  
Thoroughly clean brew  
chamber  
Too much coffee or too fine a  
grind  
Use correct grind and amount  
of coffee  
Not using pulse brew feature  
Program vol. key for pulse brew  
Sprays water from brew head  
No brew (faucet flows OK)  
Spray gasket improperly  
installed  
Check/reinstall gasket on  
INSIDE of brew head  
Spray disk plugged  
Clean spray disk  
Damaged internal component  
or wiring  
Check keypad, controller, and  
pump  
Repair, replace as needed  
No brew plus no flow from hot  
water faucet  
Water supply OFF  
Turn water supply ON  
Clean strainer  
Solenoid inlet strainer plugged  
Water filter (if used) plugged  
Replace filter element  
Damaged internal component  
or wiring  
Check controller and water level  
probe  
No flow from hot water faucet  
(brew OK)  
Damaged internal component  
or wiring  
Check solenoid and switch  
Repair/replace as needed  
Poor coffee quality  
Keep brewer and airpots clean.  
Install optional taste and odor filter, and replace cartridges  
regularly.  
Use a quality coffee with a consistent roast. Use proper grind  
and amount of coffee per brew.  
11  
SERVICING INSTRUCTIONS  
ACCESS PANELS  
CAUTION:  
SHOCK HAZARD  
TOP PANEL:  
Opening access panels on this  
brew may expose uninsulated  
electrical components.  
Disconnect brewer from  
electrical power before  
Remove top panel to access hot water tank, thermostat, heating  
elements, brew pump and tubing, hot water dispenser solenoid  
and piping,  
Top panel is held by screws around the edge.  
removing any panel.  
FRONT PANEL:  
Trouble shooting instructions,  
component views and parts lists  
in this manual are included for  
general reference, and are  
intended for use by qualified  
service personnel only.  
Remove front panel to access controller.  
Remove airpot drip tray. Front panel is held be screws on the  
vertical edges and a retaining lip at the top.  
SOLENOID DOOR:  
Remove solenoid door to access solenoid plumbing connections.  
Solenoid door is held by two screws and a retaining lip.  
12  
SERVICING INSTRUCTIONS (continued)  
TEMPERATURE ADJUSTMENT  
CAUTION:  
SHOCK HAZARD  
Disconnect brewer from electric power. Remove top panel.  
Remove button plug from front panel.  
These procedures involve  
exposed electrical circuits.  
These procedures are to be  
performed by qualified  
Pull vent tube out of tank lid and insert a thermometer of known  
accuracy in hole. Reconnect brewer to electrical power.  
Place empty container under brew chamber. Energize brewer  
and allow unit to heat. When READY light glows, read the  
temperature displayed on thermometer.  
technical personnel only.  
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.  
NOTE:  
Optimum brewing temperature  
range is 195ºF to 205ºF (90ºC  
to 96ºC).  
Upon completion, remove thermometer and reinstall the plug.  
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.  
Fig. 9 Checking and Adjusting Brew Temperature  
BOILING  
POINT OF  
WATER  
210  
205  
200  
IDEAL  
BREWING  
TEMPERATURE  
MAXIMUM  
TEMPERATURE  
SETTING  
195  
190  
ELEVATION (feet above seal level)  
BOILING  
POINT OF  
WATER  
100  
97  
IDEAL  
BREWING  
TEMPERATURE  
RANGE  
94  
91  
88  
MAXIMUM  
TEMPERATURE  
SETTING  
ELEVATION (meters above seal level)  
Table 1 Boiling Temperature by Altitude  
13  
SERVICING INSTRUCTIONS (continued)  
IMPORTANT:  
REMOVE TANK LID ASSEMBLY  
Before setting assembly into  
tank, make sure tank lid gasket  
is properly seated on flange of  
lid. DO NOT OVER-TIGHTEN.  
Disconnect brewer from electric power. Turn OFF water supply.  
Remove top panel. Pull vent tube, inlet elbow, outlet elbow and  
water level probe out of basin pan.  
Disconnect all wiring from thermostat, hi-limit, and heating  
element.  
Loosen nuts on tank hold-down strap. Remove hold-down strap  
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 (COTHERM)  
IMPORTANT:  
Disconnect brewer from electric power. Turn OFF water supply.  
Remove top panel.  
When mounting thermostat, be  
sure to insert sensing bulb to  
the bottom of the bulb well.  
Tighten capillary lock nut only  
enough to ensure no water  
leakage. Excessive tightening  
is not necessary.  
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. BE SURE the bulb well is fully  
seated in the tank fitting, and that the temperature sensing bulb is  
inserted to the very bottom of the bulb well.  
IMPORTANT:  
REPLACE HEATING ELEMENT  
When replacing heating  
element, also replace seal  
gaskets.  
Remove tank lid assembly per above.  
Remove two hex nuts holding element to cover. Pull element  
from mounting holes.  
Reassemble in reverse order.  
14  
SERVICING INSTRUCTIONS (continued)  
REPLACE SOLENOID  
Symptom: Brewer will not flow water; or, brewer drips  
continuously from brew head.  
NOTE: Wrench p/n 86660 is designed to allow easy removal of  
flare nuts from the water inlet fitting  
IMPORTANT: Shut-off water to brewer and disconnect brewer  
from electric power 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.  
Fig. 10 Wrench #86660  
Remove fill tubing:  
Disconnect wiring.  
Remove two screws holding solenoid to access door.  
Reassemble in reverse order.  
CLEAN SOLENOID SCREEN  
Symptom: Automatic brewer will not flow water.  
Disconnect brewer from electric power. 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.  
Reinsert screen in solenoid. Be careful to maintain correct  
orientation. (The OPEN END of the screen goes in FIRST.)  
Fig. 11 Clean Strainer Screen  
Reassemble in reverse order.  
15  
SERVICING INSTRUCTIONS (continued)  
REPLACE CONTROLLER  
Disconnect brewer from electric power. Remove top panel and  
front panel.  
Note location of wire connections. Be sure to mark the two  
keypad ribbon cables as to location and orientation. Disconnect  
wiring from controller.  
IMPORTANT:  
The two keypad ribbon cables  
connectors are not polarize,  
and can easily be installed on  
the wrong location on the board.  
Be sure to mark the ribbon  
cable connectors s as to  
location and orientation.  
Remove four nuts holding controller to cabinet.  
Reassemble in reverse order.  
16  
SERVICING INSTRUCTIONS (continued)  
CAUTION:  
PROCEDURE: Delime the Water Tank  
CHEMICAL BURN  
PRECAUTIONS: Disconnect brewer from electric power.  
Allow brewer to cool.  
HAZARD  
Deliming 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  
Large Sink (or other appropriate work area)  
This operation should only be  
performed by qualified and  
experienced service personnel.  
1. Disconnect brewer from electric power. 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.  
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.  
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.  
IMPORTANT: DO NOT allow  
any internal components to  
come into contact with the  
deliming solution. Take care to  
keep all internal components  
dry.  
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 .  
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,  
then reinstall the hold-down strap.  
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.  
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, then reinstall the top panel.  
10. Reconnect brewer to electrical supply and, for automatic  
brewers, reconnect water supply.  
11. Install the brew chamber without filter paper or grounds.  
Run at least three full brew cycles and discard all water  
generated.  
12. Brewer is ready to use.  
17  
0420 EXPLODED VIEW & PARTS LIST  
CABINET & ELECTRICAL COMPONENTS  
18  
0420 EXPLODED VIEW & PARTS LIST (continued)  
PLUMBING COMPONENTS  
19  
EXPLODED VIEW & PARTS LIST (continued)  
SERVICE PARTS KITS  
84427  
85218  
VALVE ASSEMBLY, COMPLETE  
INLET FITTING KIT ( Includes cap, fitting, gasket &  
strainer)  
85219  
INLET STRAINER  
20  
WIRING DIAGRAM  
21  
Bloomfield Industries proudly supports CFESA  
Commercial Food Equipment Service Association  
Bloomfield Industries, Inc.  
Division of Carrier Commercial Refrigeration  
In US and Canada  
Telephone: 775-689-5700  
Fax:  
Fax:  
888-492-2783  
800-356-5142 (for orders only)  
PRINTED IN CHINA  

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