Wilbur Curtis CB - User Manual

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Important Safeguards/Conventions

This appliance is designed for commercial use. Any servicing other than cleaning and maintenance should be performed by an

authorized 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toporfrontpanel.Nouserserviceablepartsinside.

 •Keephandsandotheritemsawayfromhotpartsofunitduringoperation.

 •Nevercleanwithscouringpowders,bleachorharshchemicals.

Symbols

WARNINGS–Tohelpavoidpersonalinjury

ImportantNotes/Cautions–fromthefactory

SanitationRequirements

YourCurtisComboBrewerisFactoryPre-SetandReadytoGo…RightoutoftheBox.

FollowingaretheFactorySettingsforyourCoffee/TeaBrewingSystem:

 •BrewTemperature=204°F

 •BrewVolume=Settodispensingvesselrequirements(2.2liters)

GenerallytherewillneverbeareasontochangetheG3/GoldCupSeriesdefaultsettings.However,shouldyouneedtomakeslight

adjustmentstomeetyourbrewingneeds,programminginstructionsareprovidedlaterinthismanual.

 SystemRequirements:

  •WaterSource20–90PSI.Minimumowrateof½gpm(1gpmpreferredowrate).

  •Electrical:Seeattachedschematicforstandardmodelorvisitwww.wilburcurtis.comforyourmodel.

Equipmenttobeinstalledtocomplywithapplicablefederal,state,orlocalplumbing/electricalcodeshavingjurisdiction.

SETUP STEPS

Theunitshouldbelevel(lefttorightandfronttoback)andlocatedonasolidcountertop.Connectawaterlinefromthewaterltertothe

brewer.

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.

1.A1/4”Flarehasbeensuppliedforwaterlineconnection.Usetubingsizedsufcientlytoprovideaminimumof½gpm(1gpmis 

 preferred).

2.Connecttheunittoanappropriateelectricalpowercircuit.

3.Turnonthetoggle(STANDBY/ON)switchbehindtheunit.Theheatingtankwillstarttoll.Whenthewaterlevelinthetankrises 

 tothecorrectvolume,theheatingelementwillenergizeautomatically.WiththeG3/GoldCupSeriesthereisnodangerofelement 

 burnoutduetoanunlledheatingtank.

4.Theheatingtankwillrequire20to30minutestoreachoperatingtemperature(204°F)asindicatedbytheREADY-TO-BREW 

 LCDreadout.

5.Important:RunonefullTEAbrewcyclerst,beforerunningacoffeebrewcycletopurgewaterlinesandvalvesofair.Five 

 secondsofpulsingdilutionwateratthebeginningofeachTEAbrewcycleisnormalpre-programmedoperatingbehavior.

NSFInternationalrequiresthefollowingwaterconnection:

1.Aquickdisconnectoradditionalcoiledtubing(atleast2xthedepthoftheunit)sothatthemachinecanbemovedforcleaning

underneath the unit.

2.Thisequipmentisto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.

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.

CAUTION:DONOT

connectthisbrewertohot

water.Theinletvalveis

notratedforhotwater.

IMPORTANT:After

setup,runafullTEA

cyclerstbeforerunning

aCOFFEEcycle.Placeanempty

teacontainertocatchbothhotwater

fromthebrewconeanddilution

waterfromspoutonthefrontcover.

Models:

 •CB

 •CBP

WARNINGHOTLIQUID,

Scaldingmayoccur.

Avoid splashing.

4. Pourground

coffee into

brewcone

marked

COFFEE

6.Pressthe

COFFEE

Brewbutton.

5. Position

lledbrew

cone into

brewrails.

BREWING INSTRUCTIONS – COFFEE

1.Ready-to-BrewshouldbedisplayedontheUCMscreen.

2.Makesurethatthefoldingairpotdeckisintheproperpositiontoaccommodateyourairpot.Placeaclean,emptyairpotonthedeck.

3. Placeanewpaperlterintothebrewcone.

FOR THE LATEST SPECIFICATIONS AND INFORMATION GO TO WWW.WILBURCURTIS.COM

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: 800-421-6150

Fax: 323-837-2410

ServiceManual–CB&CBP

Wilbur Curtis Co., inC.

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Summary

Important Safeguards and Conventions

General Safety Warnings

Essential safety precautions for operating and servicing the appliance.

Brewer Setup and Initial Configuration

Factory Settings and System Requirements

Details factory pre-set configurations and essential water/electrical requirements.

Setup Steps and Water Connection

Step-by-step guide for connecting water lines and initial setup procedures.

Initial Brewing Cycle

Instructions for running the first TEA brew cycle to purge air and water lines.

Brewing Instructions

Tea Brewing Procedure

Step-by-step guide for brewing tea using the coffee/tea combo brewer.

Quick Start Guide

Overview of initial connection, filling, heating, and readiness display.

Programming Overview

Introduction to accessing and navigating the brewer's programming menus.

Program Menus - Tea and Coffee

Program Menu Options and Error Handling

Error Message Identification

Explains common error messages like water level, over temperature, and sensor errors.

Electrical Schematic and Wiring

Component Connections and Wiring Diagram

Electrical Ratings and Ladder Diagram

Brewer and Container Cleaning Procedures

Brewer Cleaning and Maintenance

Sanitization and Specialized Cleaning

Airpot Cleaning and Precautions

The Wilbur Curtis Co., Inc. Service Manual for CB & CBP models describes a commercial-grade Combo Brewer designed for both coffee and tea brewing. This appliance is pre-set from the factory for optimal performance, ready to use right out of the box.

Function Description

The Curtis Combo Brewer is a versatile machine capable of brewing both coffee and tea. It features a heating tank that maintains a brew temperature of 204°F (95.6°C) and automatically adjusts brew volume to dispensing vessel requirements. The system includes a Universal Control Module (UCM) with an LCD display for user interaction and programming. It supports various brew cycles, including full and half batches for both coffee and tea, and offers advanced features like pre-infusion, pulse brew, dilution delay, and dilution stir to fine-tune beverage flavor and extraction. The brewer is designed for commercial use, emphasizing ease of operation and consistent quality.

Important Technical Specifications

General:

Brew Temperature: Factory set to 204°F (95.6°C), programmable from 170°F to 208°F (76.7°C to 97.8°C) in 2-degree increments.
Water Source: Requires 20 – 90 PSI with a minimum flow rate of 1½ gpm (1 gpm preferred). A water filtration system is mandatory for trouble-free operation, especially in areas with hard water.
Electrical: Specifics depend on the model; refer to the attached schematic or www.wilburcurtis.com. Equipment must comply with applicable federal, state, or local plumbing/electrical codes.
Water Connection: 1/4" Flare connection. NSF International requires a quick disconnect or coiled tubing (at least 2x the depth of the unit) for cleaning access, and adequate backflow protection.
Heating Element: Available in 1.6KW 120V and 2.5KW 220V (export only) options.
Inlet Valve: Dual 120V 10W 2 GPM x .5 GPM, or Dual 220V 1.0 GPM 5GPM DLTN (export).
Dilution Valve: .5 GPM 10W/120VAC.
Brew Valve: .5 GPM 12W/120VAC.
Control Module: Universal Control Module, 5W / 120VAC.
Safety Thermostat: Manual Reset, 120/220V 25A 220°F MAX, or HI LIMIT DPST 277V 40A (export only).
Temperature Sensor: Tank temperature sensor.
Water Level Probe: O-ring & nut kit.

Dimensions (Approximate):

Height: 20.88" (53.0 cm)
Width: 9.13" (23.2 cm)
Depth: 16.63" (42.2 cm)
Overall Depth (with drip tray): 34.25" (87.0 cm)
Countertop Space: 10.00" (25.4 cm) from front to back.

Usage Features

Quick Start:

Connect to water and power; ensure the rear toggle switch is ON.
Press the ON/OFF button. The display will show "CURTIS FILLING," then " CURTIS."
The heating tank will fill (2-3 minutes) and then display "CURTIS HEATING" as it reaches 204°F (approx. 20 minutes).
Once at temperature, "READY TO BREW" will be displayed.
First Use: Run a full TEA brew cycle (with an empty tea container) to purge air from water lines and valves before running a COFFEE cycle.

Brewing Coffee:

Ensure "Ready-to-Brew" is displayed.
Position the folding airpot deck and place a clean, empty airpot.
Place a new paper filter into the brew cone marked "COFFEE."
Pour ground coffee into the brew cone.
Position the filled brew cone into the brew rails.
Press the "COFFEE Brew" button.

Brewing Tea:

Ensure the brewer is ON and "Ready-to-Brew" is displayed.
Fold down the deck and place the tea container.
Place a filter in the brew basket and pour tea into the basket marked "ICED TEA."
Slide the brew cone into the rails and place the tea container under the brew cone.
Press the "TEA Brew" button.

Programming Menus (Access Code: 1-2-3-4):

Tea Recipes: Select from Standard-Gray, Standard-Purple, Tropical-Gray, Tropical-Purple, 76/308-Gray, and 76/308-Purple.
Brew by Volume/Time: Set desired brew volume or time for coffee and tea.
Dilution Delay/Volume/Time/Stir: Adjust parameters for dilution water in tea brewing.
Pulse Brew (Tea/Coffee): Choose ON/OFF or manual pulsing (1-20 pulses at 5-second increments) for tea, or one of five pulse patterns (A-E) for coffee to tune flavor.
Fast Brew (Tea): Starts hot water spray first, then dilution water 1 minute later.
Half Batch (Tea): Activates a half batch button on the control panel.
Drip-out (Tea/Coffee): Set a delay for drip-out (OFF, 5 seconds to 15 minutes for tea; OFF, 1-5 minutes for coffee).
Pre-Infusion (Coffee): Set pre-wetting time (OFF to 60 seconds).
Safety SW On/Off: Toggles the safety switch feature.
Temperature: Adjust brew temperature (170°F to 208°F).
Energy Save Mode: ON (unit shuts off 4 hours after last brew) or ON 140°F (temperature drops to 140°F if no brew in 4 hours).
Brew Count Odom/Total: Displays total brew cycles and total gallons/cycles (cannot be reset).
Cold Brew Lock: Sets temperature tolerance for "Ready to Brew" message (5°, 15°, or OFF).
Master Reset: Resets brewer to factory defaults.
Service Call: Displays service phone number (programmable).
Access Code: Change the 4-digit access code.
Banner Name: Program a custom name (up to 14 letters) to display.
P-Maintenance: Set gallons brewed to indicate maintenance.
Beeper On/Off: Toggles audible button beeps.
Quality Timer: Sets an alarm (0-10 hours) for "Brew Fresh Tea" message (models after 1/2015).
Displ. Brew Time/Messages: Toggles display of brew time and "Rinse Server Before Brewing" message.
Model Select: Choose from various TEA/IC, DUAL, COMBO models.

Error Messages:

Water Level Err: Inlet valve on for >10 minutes, or refilling during brew cycle for >1½ minutes.
Over Temp Error: Open probe or break in temperature control circuit, tank temp >210°F.
Sensor Err: General sensor malfunction.
To clear errors, press the button for 5 seconds after correcting the malfunction.

Maintenance Features

Cleaning the Brewer:

Wipe exterior surfaces with a moist cloth.
Remove and clean the brew cone and spray head area with a moist cloth.
Rinse and dry the brew cone.
Apply stainless steel polish to exterior surfaces.

CAUTION: Do not use cleansers, bleach, or harsh chemicals containing chlorine, as they will corrode stainless steel and void the warranty.

Cleaning the Tea Containers:

Wash the tea container and top cover with detergent solution and a soft bristled brush.
Clean the exterior with a sponge and detergent solution. Rinse thoroughly.
Disassemble and clean the faucet assembly (handle, shank, body inlet/outlet, cap, silicone seat cup) using a gage glass brush.
After cleaning, rinse all parts (sprayhead, brew cone, basket, faucet parts) with hot water to remove detergent traces.

Sanitizing Disassembled Parts:

Wear rubber gloves.
Place cleaned parts into a sink.
Immerse parts in commercial Bar Tabs/Sani-Tabs sanitizing solution (warm, 75°F) for at least one minute.
Remove parts and air dry.
Reassemble parts.

Cleaning Airpots:

Mix a mild detergent solution.
Discard old coffee.
Wipe exterior surfaces with a sponge moistened with detergent solution.
Remove and clean the syphon tube/funnel with detergent solution.
Clean inside airpots with a sponge brush soaked in detergent solution.
For mineral deposits, place a coffee equipment cleaning tablet in the brew cone, place the airpot, open the lid, and run a coffee brew cycle. Allow solution to sit for a minute, then discard and rinse thoroughly.

Airpot Precautions: Do not immerse in water, place in dishwasher, use harsh powders/cleansers containing chlorine, or use a wire brush/pot scour.

Liquid Level Probe Cleaning:

Intervals vary based on water conditions (1 month to several years). Replacing the probe is often preferred over cleaning.

Unplug power cord and shut off water.
Remove top cover of brewer and heating tank.
Drain tank to 3" below probe tip.
Allow probe to cool.
Clean probe tip with a Scotch-Brite™ scuff pad.
If residue remains, remove probe and soak in vinegar or scale-removing chemical until clean.

WARNING: Electric shock hazard. Disconnect electrical power before removing access panels.
CAUTION: Scalding and Burn hazard. Hot water and hot surfaces. Allow unit to cool before working.

Warranty Information:

Digital Control Boards: 3 years, parts and labor.
Other Electrical Components, Fittings, Tubing: 2 years, parts; 1 year, labor.
Grinding Burrs: 40 months or 40,000 pounds of coffee.
Stainless Steel Components: 2 years against leaking or pitting.
Replacement Parts: 90 days or remainder of original warranty.
All in-warranty service requires prior authorization from Technical Support (1-800-995-0417).
Warranty is voided by improper operation, installation, voltage, water supply, lack of cleaning/maintenance, transit damage, abuse/neglect, or use of non-Curtis replacement parts.

Wilbur Curtis CB Specifications

General

Brand	Wilbur Curtis
Model	CB
Category	Coffee Maker
Language	English