Curtis SERA2B User manual

1
The Curtis G4 brewer is factory pre-set and ready to go right from the box.
Following are the factory settings for your G4 Coffee Brewing System:
• Brew Temperature = 200°F • Brew Volume = Set to vessel requirement.
System Requirements:
 •WaterSource20–90psi(138–620kPA)withaminimumowrateof2gpm(7.5lpm).
• Electrical: See attached schematic for standard model or visit www.wilburcurtis.com for your model.
INSTALLATION INSTRUCTIONS
Please adhere to these installation instructions to ensure proper set up.
Conrm that the planned location for the coffee brewer has the proper electric and water supply. In
addition, water drain pipes and the oor stability should be considered.
The water tower should be installed and grounded properly by a qualied installer or service
technician. This unit must be electrically grounded in accordance with local codes.
Carefully unpack the Seraphim brewer components from the shipping crates.
continued...
Models:
SERA2B
SERA2W
CAUTION: DO NOT
connect this brewer to hot
water. The inlet valve is
not rated for hot water.
CAUTION: Please use
this setup procedure
before attempting to use
this brewer. Failure to follow the
instructions can result in injury or the
voiding of the warranty.
IMPORTANT: Equipment
to be installed to comply
with applicable govern-
mental plumbing/electrical codes
having jurisdiction.
ISO 9001:2008 REGISTERED
WILBUR CURTIS CO., INC.
6913 West Acco Street
Montebello, CA 90640-5403
For the latest information go to
www.wilburcurtis.com
Tel: [phone]
Fax: [phone]
This equipment is designed for commercial use. Any servicing other than cleaning and routine maintenance
should be performed by an authorized Wilbur Curtis Co., Inc. service technician.
• DO NOT immerse the unit in water or any other liquid
 • Toreducetheriskofreorelectricshock,DONOTopenservicepanels.Therearenouserserviceable
parts inside.
• Keep hands and other items away from hot areas of the unit during operation.
• Never clean with scouring powders or harsh chemicals.
Important Safeguards/Symbols
Service Manual – Seraphim Coffee Brewer
Wilbur Curtis Co., inC.
NSF International requires the following water connection:
1. A quick disconnect or additional coiled tubing (at least 2x the depth of the unit) is required so
that the unit can be moved for cleaning.
2. Thisunitmustbeinstalledwithadequateback-owprotectiontocomplywithapplicable
federal, state and local codes.
3.Waterpipeconnectionsandxturesdirectlyconnectedtoapotablewatersupplyshallbe
sized, installed and maintained in accordance with federal, state, and local codes.
NOTE: Electrical source should have a minimum 30 A internal common trip circuit breaker between
thebrewerandthemainsupply,whichbreaksallpoleswithacontactseparationofatleast3mm.
NOTE:Awaterltrationsystemmustbeusedtohelpmaintaintrouble-freeoperation.Air must be
purged from the cartridge prior to connection to equipment. Inareaswithextremelyhardwater,
wehighlyrecommendtheuseofaCurtisapprovedwaterlter.Forourfulllineoflters,pleaselog
on to www.wilburcurtis.com.
Symbols:
WARNING/CAUTION – To advise about conditions that my result in property damage,
personal injury or death
IMPORTANT – Notes about proper operation
Sanitation requirements
CAUTION: Avoid Injury.Donotturnonwaterorelectricityuntilthebrewheadandwatertower
assembliesareproperlyinstalled.

STEP 1. BEFORE INSTALLATION – PREPARE THE COUNTER TOP
Holes must be cut into the counter top prior to installing the
brewer. The hole pattern is critical for proper operation of the
Seraphim coffee brewer. See Figure 2 below for the basic
counter layout. The two brew heads must t within a 2 foot by
3 foot area.
Packed with the unit is a full-size template (Part № WC-
390245). Use the template for cutting the required holes
needed for installing the brew heads, touch screen and drip
tray. The two largest circular holes are for the brew head
assemblies, along with three stud holes for the mounting
plate for each head. Also there is a circular hole for the touch
screen, along with the two mounting holes. The drip tray can
be inset into the counter or mounted ush. Inset installation is
recommended. The rectangular hole shown below is for inset
installation. If the drip tray will be mounted ush, a circular
hole is drilled in the location shown for the drain, instead of a
rectangular hole.
Consideration must be made for the drip tray drain system.
The drip tray comes with a 1/2” NPT X 3” nipple for
connecting the drain system (supplied by the purchaser) to
the drain tting located on the bottom of the drip tray. See
Figure 3 on the facing page for dimensions.
2
WATER
HEATER
LEFT
BREW
HEAD
RIGHT
BREW
HEAD
UCM
TOUCH
SCREEN
COUNTERTOP
Figure 1 - Cabinet installation showing the four main sections
of the Seraphim Brewing System
Figure 2 - Hole Pattern Template for Cutting and Drilling Counter Top (Drawing Not to Scale)
1 21/32”
[4.2 cm] 2X 3/4”
[1.9 cm]
2X 3/4”
[1.9 cm]
1 21/32”
[4.2 cm]
1 1/4”
[3.2 cm]
1 1/4”
[3.2 cm]
2 3/4”
[7.0 cm]
2 3/4”
[7.0 cm]
1 1/4”
[3.2 cm]
1 1/4”
[3.2 cm]
3 1/2”
[8.9 cm]
WATER HEATER
OUTLINE AREA
SPRAY HEAD
CUTOUT
SPRAY HEAD
CUTOUT
TOUCH SCREEN
CUTOUT
20 1/2” X 7 1/2”
RECTANGULAR CUTOUT
INSET DRIP TRAY
INSTALLATION ONLY
CURCULAR DRAIN
CUTOUT FOR FLUSH
DRIP TRAY
INSTALLATION ONLY
ALLOW ROOM FOR 3/4”
LIP AROUND OUTSIDE ON
INSET DRIP TRAY
INSTALLATION
Ø 2 1/4”
[5.7 cm] Ø 2 1/4”
[5.7 cm]
6”
[15.2 cm]
6”
[15.2 cm]
3X Ø 5/16”
[8.0 mm]
2X Ø 5/16”
[8.0 mm]
Ø 1 1/2”
[3.8 cm]
1/4”
[6.4 mm]
Ø 1 3/8”
[3.5 cm]
3X Ø 5/16”
[8.0 mm]
1”
[2.5 cm]
C
L
C
L
6 7/8”
[17.5 cm]
8 1/2”
[21.6 cm]
7 1/2”
[19.1 cm]
10 1/4”
[26.0 cm]
10 1/4”
[26.0 cm]

STEP 2. INSTALL DRIP TRAY
After preparing the drip tray location, according to step 1, apply teon plumbing tape to the threads on the supplied pipe nipple and
thread into the bottom of the drip tray. Assemble the drip tray pieces as shown in Figure 4 and place them into position. Install the
drain system.
3
Figure 3 - Drip Tray Dimensions
Figure 4 - Drip Tray Installation
INSET FRAME - INSET
INSTALLATIONS ONLY
INSET CUTOUT - INSET
INSTALLATIONS ONLY
DRAIN HOLE - FOR FLUSH
INSTALLATIONS OR INSET
INSTALLATIONS THAT ARE
ENCLOSED ON THE BOTTOM
3/4"
1"
INSET FRAME
REMOVE FOR
FLUSH INSTALLATION
20 1/4"
ø1.125
8 3/4"
21 3/4"
1 5/8"
7 1/4"

STEP 3. INSTALL BREW HEAD
CAUTION: Do not open the brew head units! The length of the wires and tubing are xed and set at the factory. Do not
splice or extend the tubes that come from beneath the brew head assembly. Ample tube length is provided and the tubes
will need to be shortened in most cases for proper installation.
Install the brew head units into the counter top in the correct position. One brew head is designed to be installed on the right side
and the other on the left. The installation position for each brew head is marked on the attached wires and tubes. Each brew head
has three 1/4–20 studs with matching nuts and washers for mounting onto the surface of the counter. Hold a brew head over the
group of holes that matches the markings on the brew head tubing/wiring (right or left). Insert the tubes and wires into the large
center hole and insert the studs through the three smaller holes, while pushing the unit down onto the countertop. Secure with the
nuts supplied. Repeat for the other brew head.
STEP 4. INSTALL THE UCM ASSEMBLY
Locate the wiring harness and UCM plugs coming from
behind the water tower. Plug the touch screen wiring
harness and USB wiring into the receptacles in back of
the UCM. These will snap and lock into place. Install the
UCM/holder onto the counter top. Slip the two 1/4–20
threaded studs into the counter top and fasten the holder
to the Counter using (1) fender washer, (1) lock washer
and (1) nut per threaded stud. Once the touch screen
and the brew head assemblies are properly installed in
the counter top, proceed to the next step.
STEP 5. INSTALL THE WATER TOWER
Remove the water tower top cover (two screws) and
side cover. Remove the screws from the cable support
plates, attached to the control cables coming from the
brew heads. Insert the cable support plates into the
chassis and run the cables through the holes in the back
of the chassis (see Figure 6.1). The cables for the right
and left brew heads route through the two cable ports on
the right. The left port is for the UCM controller cable.
Figure 5 - UCM Assembly and Harness Plugs
Figure 6.1 - Brew Head Cable and Cable Support Plate
UCM AND HOLDER
WIRE HARNESS
PLUGS
CABLE SUPPORT
PLATE
HOLES IN BACK
OF CHASSIS
4

Use the screws to attach the plates to the chassis as
shown in Figure 6.2 (back view).
Connect the brew head cables to the connectors inside
the chassis. The connectors are labeled right and left to
indicate the correct cable connection.
Replace the water tower top cover and side cover.
We recommend attaching the power cord and plug rst
before placing the water tower into the cabinet beneath
the counter. Connect the unit to electrical circuit with
appropriate amperage rating; refer to serial tag on
the machine and local/national electrical codes to
determine circuit requirements.
With the brew heads installed, place the under-
counter water tower on the oor of the cabinet. Center
it between the two heads. Refer to the hole pattern
drawing (Figure 2.), for the proper location of the water
tower. The water tower should be level (left to right -
front to back), on a secure surface. Wait to install the
hold down brackets until instructed to do so.
Connect the water line to the water inlet tting at the
rear of the unit. Water volume ow to the machine
should be consistent. Use tubing sized sufciently to
provide a minimum ow rate of two gallons per minute.
Brew Head Water Return Tubes
Join the brew heads to the water tower by attaching the
water return tubes. These are the two larger diameter
exible silicone tubes that come from behind the water
tower. The matching return lines from the spray head
assemblies will have a straight tting slipped into the
tube. Join the return line tubes together using this tting.
Make sure they are correctly oriented as shown in
Figures 7 and 8.
CAUTION: The silicone line tubes must not sag.
Route these silicone tubes in an uphill orientation
between the back of the water tower and the
bottom of the brew head assembly (See Figure 8). These
tubes can be shortened if necessary, to attain the uphill
routing. This is done to make sure there is no sag or
“trap” in the return tube.
Brew Head Water Supply Tubes
Behind the water tower, there are two 1/4 inch diameter
water supply tubes. The supply lines should be
shortened to minimize length when connected with the
matching 1/4 inch tubes coming from the bottom of the
brew head assemblies. There are straight barbed tting
connectors already inserted to the tubes from the head
unit. To make the connection between the two tubes,
insert the tube from the back of the water tower into the
tube tting from the brew head assembly.
continued...
Figure 6.2 - Harness Cable Locations
Figure 7 - Hook-up Water Supply and Return Tubes
Figure 8 - Back View Showing Water Tube Routing
RIGHT BREW
HEAD CABLE
LEFT BREW
HEAD CABLE
UCM CABLE
SPRAY HEAD
ASSEMBLY
WATER
RETURN TUBE
WATER
SUPPLY TUBE
CAUTION: No slumping loop
is permitted in the return lines.
WATER
RETURN TUBE
WATER
SUPPLY TUBE
5

Exhaust Tubes
The water tower is equipped with two outlet ttings that
vent steam and condensation from the water tank inside
the chassis. Run the provided exhaust tubing from the
ttings to a drain to drain off condensation.
IMPORTANT: The exhaust tubes must be
installed so that ends do not become submerged
in water to avoid backup.
Hold-down Brackets
Install the hold-down brackets after mounting the brew
heads and making the water and electrical hookups on
the water tower.
The hold-down brackets are for positioning the water
tower and to reduce the risk of tipping. The water tower
must be secured to the bottom of the cabinet.
CAUTION: Failure to install the anti-tip brackets
may cause the unit to tip over when installed in
a mobile coffee counter. Injury might result from
spilled hot liquids or damage may occur to the water
tower itself.
The brackets fasten onto the oor and prevent the water
tower from shifting from its predetermined position. If
the brewer is ever installed in a different location, these
brackets must also be moved and installed with the
water tower. The hold-down brackets are afxed to the
bottom edge of the water tower. One on the front and
one on the side.
STEP 6. TURN ON THE BREWER
Once the brew heads and the UCM are correctly mounted on the counter top, and the water tower is properly installed, turn on the
water line at the water source. After turning on the water, plug in the power cord, then ip the toggle switch on the back of the water
tower to the ON position. The water tank will start to ll. Once lled, the heating elements will come on. It will take about 45 minutes
for the temperature to arrive at 200ºF.
You are now ready to brew.
Figure 9 - Exhaust Tube Installation
Figure 10 - Hold-Down Bracket
6
EXHAUST TUBES
ATTACHED TO
TANK OVERFLOW
FITTINGS
DO NOT
SUBMERGE END
OF EXHAUST
TUBES IN WATER

7
YourCurtisG4/GoldCupSeriesisFactoryPre-SetforOptimumPerformance.
After connection to water and power; turn on the brewer at the rear toggle switch. You will hear a beep and the status lights will come on for
a moment.
Thescreenwilldisplay .Next  isdisplayed.Waterwillllthetank(3-5minutesdependingonwaterowrate).
Whentheproperlevelisreached willappearonthescreen.Ittakesapproximately45minutestoreachthesetpointtempera-
ture.
Controlwilldisplay  whentemperaturereachesthesetpoint.Theunitisnowreadytobrew.
READY TO BREW
1.BrewershouldbeON.Conrmthisatthetoggleswitchonthebackofthewatertower,thelowerrightside.Thetouch-screenshouldread
Ready to Brew.
2. Place an empty coffee container centered beneath the brew head.
COFFEE BREWING INSTRUCTIONS
5. Slidethelledbrewbasketintothebrew
rails on the brew head.
3. Placeacleanlterintothebrewbasket. 4. Fillthelterwiththeproperamountof
ground coffee.
6. Start the brew cycle by holding your
ngeronthedesiredbrewicon.Assoon
as you hear the click of the brew valve,
the brew cycle has started and you can
liftyournger.
Brew Code: Youmayndthatwhenabrew
button is pressed, a key pad appears on the
screen. This is a brew lock-out feature that
requires a code to be entered before a brew
will start. The default is OFF.
CAUTION: When enabled, as soon as you
enter the brew code a brew cycle starts.
Refer to page 8 for more information about
setting the Brew Code.
During the brew cycle, an animated coffee
cup icon will appear on the screen and a
brew timer will count down the time remain-
ing on the brew cycle.
WARNING –TOAVOIDSCALDING,Donotremovebrewbasketwhilebrewlightisashing.

8
MAIN MENU screen contains six control icons:
RECIPES, CONTROL SETTINGS, BREW SETTINGS,
MODEL SELECT, SETTINGS SUMMARY and EXIT.
ACCESS CODE screen. Default is 1 2 3 4.
Once the code is entered, press OK. The
Main Menu screen will appear.
The access code can be reset in Control
Settings, PASSWORDS.
PROGRAMMING
Touch-Screen Control Module
The touch-screen turns on when power is available to the controller. The screen
will contain standard control feature such as symbols and buttons. Pressing these
elementswithyourngertipwillactivatetheprogrammingfunctions.Thedefault
screen, as well as some added control buttons, are shown in the illustration below.
ENTER
CURTIS LOGO
TO ENTER PROGRAMMING
Tap Curtis logo 5 times to bring
up the ACCESS CODE screen.
RETURN TO HOME SCROLL
UNDO
CONTROL SYMBOLS
All of these symbols may not be
visible at one time.
STATUS LIGHTS
BREW
BUTTONS

9
Menu Tree
This chart explains how to enter the program mode and menu selections available from the MAIN MENU.

10
Menu Features

11
NOTE:
Recipe Defaults are for Seraphim Models Only.
Custom Recipe feature is “enabled”.
Menu Features
Default Recipe Brew Button Settings (Paper Cup)

System Fault Messages
12

13
Brew Access Code

14
3
4
5
6
7
8
9
10
11
12
1
2
13
14
COVER, TOP SERA
FITTING, TANK OVERFLOW 304SST
RELAY, SOLID STATE 230V MAX W/INTEGRATED HEAT SINK
VALVE, INLET 2GPM 120V (SERA2)
VALVE, INLET 2 GPM 240V 10W (SERA33)
UNIVERSAL HOST ADAPTER (USB-G4)
LED STRIP ASSY, 12Vdc x 1.2W 15 LEDs w/CONNECTORS
BRACKET SIDE
PLATE, FRONT FACE SERAPHIM LOGO
FRONT FACE W/LED
LEG, 3/8”-16 STUD SCREW BUMPER
CURRENT SENSOR ASSEMBLY G4
LEG, GLIDE 3/8”-16 STUD SCREW
COVER, SIDE ACCESS
O-RING, ½” I.D.
NUT, 5/8-18 JAM UNF NICKEL PLATED
* Recommended Parts to Stock
1
2
3
4
4A
5
6
7
8
8A
9
10
11
12
13
14
WC-61643
WC-2948
WC-8559*
WC-847*
WC-883*
WC-10008
WC-1065
WC-61536
WC-73133
WC-73133K
WC-3503*
WC-14045-101*
WC-3518*
WC-61521
WC-4320*
WC-4212
Item № Part № Description
Illustrated Parts
Main View of Water Tower

15
15
16
17
18
19
22
23
21
20
TRANSFORMER, 120VAC-24V 4.8A W/TERMINALS (SERA2)
TRANSFORMER,240VAC- 24V 4.8VA (SERA33)
CONTROL MODULE, UPM 120/220V G4
POWER SUPPLY,100-240Vac X12Vdc W/CONNECTORS
FAN, CHASSIS W/CONNECTORS SERAPHIM
PUMP, WATER CENTRIFUGAL 120V 60Hz
TUBE, 3/16 ID x 3/32W SILICONE (SOLD BY THE FOOT)
BUSHING, LOCKIT STRAIN RELIEF .220-.290 OD CABLE
SWITCH, TOGGLE DPST 25A 125/250VAC RESISTIVE
ELBOW, 3/8 NPT x 1/4 FLARE PLATED
* Recommended Parts to Stock
15
15A
16
17
18
19
20
21
22
23
WC-589-101*
WC-589-102
WC-10001*
WC-1064*
WC-1066*
WC-1040*
WC-5307*
WC-14054
WC-103*
WC-2401
Item № Part № Description
Illustrated Parts
Back View of Water Tower

16
24
24A
25
25A
26
27
28
29
33
32
34
30
31
HEAD, BREW ASSY SERAPHIM BLACK
HEAD, BREW ASSY SERAPHIM WHITE
BREW HEAD ASSY, BLACK 120V COMPLETE (SERA2B)
BREW HEAD ASSY, WHITE 120V COMPLETE (SERA2W)
BREW HEAD ASSY, BLACK 200V (SERA33B)
BREW HEAD ASSY, WHITE 200V (SERA33W)
TUBE, 5/16 ID x 1/8W SILICONE
VALVE, DUMP LEFT 120V (SERA2)
VALVE, DUMP 200V 12W (SERA33)
CLAMP, HOSE SNAP-GRIP NYLON .750/.875
KIT, WEIR BOX & BUSHING
KIT, SPRAYHEAD FITTING TLP
SPRAYHEAD, PURPLE ADVANCE FLOW
SPRAYHEAD, GRAY ADVANCED FLOW
FITTING, STRAIGHT PLASTIC 12MM
TUBE, 1/2 ID x 1/8W SILICONE (SOLD BY THE FOOT)
COUPLER, 3/16” BARBED STRAIGHT
* Recommended Parts to Stock
24
24A
25
25A
25B
25C
26
27
27A
28
29
30
31
31A
32
33
34
WC-66099-BLK
WC-66099-WHT
SERA-BH-BLK120
SERA-BH-WHT120
SERA-BH-BLK200
SERA-BH-WHT200
WC-5310*
WC-889-103*
WC-12007-103*
WC-43813
WC-66092K*
WC-37379*
WC-29025
WC-29065
WC-2959-101
WC-5350*
WC- 29105
Item № Part № Description
Illustrated Parts
Brew Heads

17
35
36
37
38
39
40
43
41
42
43A
43
44
45
46
47
48
TUBE, RETURN ASSEMBLY SERA
KIT, TANK LID ROUND
O-RING, 4-1/2 I.D. x Ø.285 C.S. SILICONE
KIT, PROBE WATER LEVEL O-RING & NUT
TANK COMPLETE, (SERA2)
TANK COMPLETE, (SERA33)
REDUCER, 3/16” TO 5/16” BARBED Y-CONNECTOR
BUSHING, CONICAL .469 ID x .945 OD x .986 LG
TUBE, 5/16 ID x 1/8 W SILICONE
KIT, FITTING TANK INLET
KIT, FITTING TANK OVERFLOW
KIT, ELEMENT HEATING 2.5KW 220V, NUTS, WSHRS
KIT, HEATING ELEMENT2.0KW 220V SERA33
SENSOR, TEMPERATURE TANK
GUARD, SHOCK HEATING ELEMENT
THERMOSTAT, HI-LIMIT HEATER DPST 277V-40A
GUARD, SHOCK RESET THERMOSTAT
35
36
37
38
39
39A
40
41
42
43
43A
44
44A
45
46
47
48
WC-53162
WC-37008
WC-43067*
WC-5527K*
WC-62107
WC-62107-33
WC-2221
WC-2628*
WC-5310*
WC-37365*
WC-37266*
WC-934-04*
WC-906-04
WC-1438-101*
WC-4394
WC-522*
WC-43055
Item № Part № Description
* Recommended Parts to Stock
Illustrated Parts
Heating Tank

18
49
50
51
59
57
54
55
58
60
56 52
53
KIT, UCM & BACK PLATE
HOLDER, UCM SERAPHIM BLACK
HOLDER, UCM SERAPHIM WHITE
UCM HOLDER ASSY, BLACK COMPLETE
UCM HOLDER ASSY, WHITE COMPLETE
SCREEN, DRIP TRAY SERAPHIM
PAN, DRIP TRAY WITH DRAIN SERAPHIM
FILTER, PAPER COFFEE #4 40/PKG
BREW BASKET ASSEMBLY, OPEN BREW
KIT, HOLDER BREW BASKET SERA
DRIP TRAY ASSY, COMPLETE
KIT, NOISE FILTER 250V/30A SERA30/33
TRANSFORMER, 230-115V 130VA SERA30
TRANSFORMER, 208-120V 100VA SERA33
BREAKER, CIRCUIT 2-POLE 5A/250V SERA33 (NOT SHOWN)
49
50
50A
51
51A
52
53
54
55
56
57
58
59
60
61
WC-37580*
WC-66095-BLK
WC-66095-WHT
SERA-UH-BLK
SERA-UH-WHT
WC-65034
WC-65035
CGC4FILTER*
WC-3411
WC-73141K
WC-65041
WC-596K
WC-592
WC-598
WC-1512
Item № Part № Description
* Recommended Parts to Stock
Illustrated Parts
Touch Screen & Drip Tray

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Electrical Schematic SERA2

Cleaning the Coffee Brewer
Regular cleaning and preventive maintenance is essential in keeping your coffee brewer looking and working like new.
CAUTION – Do not use cleansers, bleach liquids, powders or any other substance containing chlorine. These
products promote corrosion and will pit the stainless steel parts. USE OF THESE PRODUCTS WILL VOID
THE WARRANTY.
DAILY CLEANING
1. Mix dish washing liquid in warm water to make a mild cleaning solution.
2. Drain the drip tray. Wash the tray and screen. Dry these parts.
3. Wipe exterior surfaces with a cloth moistened with cleaning solution. Clean off dried coffee, spills or debris.
4. Wipe exterior surfaces with a cloth soaked in clean water to remove all traces of cleaner.
5. Slidethebrewbasketsoutandcleanwithdetergentsolutionandasoftbrush.
6. Rinse and dry the brew baskets. Return them onto the brew rails.
7. Dryexteriorsurfaceswithacleansoftcloth.
WEEKLY CLEANING
1. Turn off unit at the power switch, right side behind the water tower.
2. Remove the brew basket and clean the sprayhead and dome plate area.
a. Remove the sprayhead, unscrewing counterclockwise from the dome plate. Rinse
the sprayhead.
b. With a cloth soaked in cleaning solution, thoroughly clean dome plate area.
c. Clean the brew basket rails with a brush. Rinse with a water soaked cloth. Dry the
area with a clean cloth.
3. Attach the sprayhead and insert the brew basket into the brew rails.
4. Restore the electrical power to the urn.
Liquid Level Probe
Cleaning intervals for the probe are to be determined by the user or the service
tech, based on water conditions. The use of water lters, or the type of water lter
that is being used can impact the service interval. Intervals can be from one month
to several years, however, replacing rather than cleaning the probe is preferable.
WARNING: Disconnect electrical power before removing access panels.
This procedure involves working with hot water and hot surfaces.
1. Unplug the power cord and shut off the water line.
2. Remove the top cover of the unit. Locate the top of the tank and remove the cover.
3. Drain the tank to a level about 3” below the tip of the probe.
4. Allow some time for the probe to cool before working on the brewer.
5. CleanthetipoftheprobeusingaScotch-Brite™scuffpad.
6. If a residual white layer is still visible on the probe, remove the probe and soak it in
vinegar or a scale removing chemical. Repeat this step until the white layer is removed.
7. Whenassemblingtheprobebackontothetank,makesurethetipoftheprobeispoint-
ing downward as illustrated.
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