Curtis Primo Cappuccino Next Generation 3 Station Dispensing System User Guide

Key Features

• G3 Digital Control Module: Provides precise control over all critical blending and dispensing functions.
• Pre-Dispense: Easy to use. Choose a size from small, medium or large by the touch of a button.
• Factory Pre-Set: For out-of-the-box operation.
• LCD Digital Display: Extra bright and easy to use.
• Scroll-Through Precision Programming: Adjust powder flow in 5% increments and water temperature from 80°F/27°C to 204°F/96°C to create the perfect hot or cold beverage.

Specifications (Selected Models)

Electrical Supply Requirements

Dimensions

Water Supply Requirements

Factory default settings:

• Water Temperature = 190°F/88°C (standard units) or 96°F/36°C (iced cappuccino units)
• Powder Ratio = 60%

Important Safeguards

Symbols used in this guide:

• ! (Safety Alert Symbol): Alerts to potential physical injury hazards.
• DANGER: Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
• WARNING: Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
• CAUTION: Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Indicates a situation which, if not avoided, could result in property damage.
• i (IMPORTANT): Provides information and tips for proper operation.
• NSF (Sanitation Requirements)

WARNING: This product can expose you to chemicals including Acrylamide and Bisphenol A (BPA), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information visit www.P65Warnings.ca.gov.

General Safeguards:

• Ensure the appliance is installed and grounded by qualified personnel.
• This appliance is designed for commercial use. Service should be performed by an authorized Wilbur Curtis service technician.
• Do not open service panels; there are no user-serviceable parts inside.
• Keep hands, arms, and other items away from hot surfaces during operation.
• Clean the appliance and dispensers before first use and regularly thereafter.
• Use only for its intended purpose (brewing/dispensing hot and/or cold beverages/water).
• Not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless supervised. Children should be supervised to ensure they do not play with the appliance.
• Avoid spillage onto the power connector.

CE Requirements:

• Install in locations overseen by trained personnel.
• Operate within a temperature range of 5°C to 35°C.
• Not suitable for outdoor use.
• Do not tilt more than 10° for safe operation.
• Electrical service must conform to all local and national codes. An all-pole disconnection must be incorporated into the fixed wiring in accordance with IEC 60335.
• Do not clean by water jet.
• Can be used by persons aged 18 years and above if supervised and understand the hazards.
• Keep out of reach of children under 18 years.
• If the power cord is damaged, it must be replaced by the manufacturer or authorized service personnel.
• Do not immerse the machine for cleaning.
• Cleaning and user maintenance should not be made by children unless they are older than 18 years and supervised.
• Intended for use in staff kitchen areas, shops, offices, working environments, hotels, motels, and bed and breakfast environments.
• Not intended for use in farm houses.
• Access to service areas is permitted by Authorized Service personnel only.
• A-Weighted sound pressure level is below 70 dBA.

Disposal of Equipment:

• This product is e-waste. Do not dispose of in household waste. Deliver to a collection point for recycling electric and electronic appliances. Consult local municipality for disposal guidelines.

European Regulations and Directives:

• Meets requirements of Regulation 1907/2006/EU (REACH), Directive 2011/65/EU (ROHS) and its amendment (EU) 2015/863, Directive 2012/19/EU (WEEE), Directive 2014/30/EU (EMC), Directive 2006/42/EC (Machinery) and Directive 2014/35/EU (LVD).
• Declaration of conformity included. Appliance bears the CE mark.
• Subject to WEEE/EU directive. Do not dispose of in domestic waste. Contact local authorities for disposal requirements.
• Modifications not approved by Wilbur Curtis Company will render the declaration invalid.

Installation Instructions

WARNING: Installation must be performed only by a qualified installer.

WARNING: Improper electrical connection may result in electric shock or unit damage. Unit must be properly grounded.

NOTICE: DO NOT connect to a hot water supply. The water inlet valve is not rated for hot water. Do not exceed the maximum water pressure stated in the SPECIFICATIONS section.

IMPORTANT: Observe all governing codes and ordinances.

Installation Requirements

• A secure surface capable of supporting the appliance's weight.
• For units without an attached cord set or dual voltage units set up for 220-240 Volts: Use an appropriately sized, UL listed, grounding type power cable. Consult a qualified installer if unsure about cable size and length. If hard wiring to a junction box, ensure the power cable is long enough to move the unit for cleaning underneath.
• A grounded electrical connection to a circuit meeting the appliance's electrical specifications. The circuit must be protected by an appropriately sized circuit breaker. Consult a licensed electrician if unsure about the existing circuit.
• A water filtration system is required for trouble-free operation. Wilbur Curtis Co., Inc. recommends a Wilbur Curtis approved water filter. See the Curtis Equipment Catalog for options.
• Potable water supply line connection from the water filter capable of supplying the minimum flow rate required by specifications. The water supply line must connect to the flare fitting on the back of the unit. See SPECIFICATIONS for correct size. The water line should be controllable by a shut-off valve. Do not connect to a saddle valve or needle valve.

IEC requires the following water connection:

1. A quick disconnect or additional coiled tubing (at least two times the appliance's depth) is required for moving the unit for cleaning underneath.
2. Install with adequate back-flow protection to comply with applicable federal, state, and local codes.
3. Water pipe connections and fixtures directly connected to a potable water supply shall be sized, installed, and maintained in accordance with federal, state, and local codes.

The International Plumbing Code and the FDA Food Code manual direct that this equipment must be installed with adequate back-flow prevention in compliance with federal, state, and local codes. For units outside the U.S.A., ensure compliance with applicable plumbing/sanitation codes.

Installation Steps

Leveling

WARNING: Use leveling legs only to level the dispenser. Do not use them to adjust dispenser height. Do not extend them higher than necessary.

1. Position the dispenser on the counter top. Level it left to right and front to back by turning the bottom of the legs.

[Image: Dispenser on a counter top with arrows indicating leveling legs]

Connect the Water Supply

1. Flush the water supply line prior to installation to purge air and debris from the water filter and tubing.
2. Connect the water supply line to the flare fitting on the back of the unit. Leave the water supply valve closed until power is connected.

[Image: Water supply line connecting to the back of the unit]

Setting Up 120/220 Volt Units for 220-240 Volt Operation

WARNING: Do not connect the power cord to the power supply until instructed to do so.

1. Remove the top and left side covers to expose the terminal block.
2. Loosen the strain relief on the back of the unit.
3. Disconnect the existing power cable from the terminal block and remove.
4. Disconnect and cap the jumper wire between the “C” and “N” terminals on the terminal block.
5. Feed the 220-240 Volt power cable through the strain relief, into the unit. The unit may be wired for connection directly to a junction box or for use with a power plug that connects to an electrical outlet meeting the SPECIFICATIONS.
6. Connect the wires on the power cable to the terminal block inside the unit according to the ELECTRICAL SCHEMATIC.
7. Tighten the strain relief and replace the covers.

[Diagram: Steps for connecting wiring to the terminal block]

Connecting the Wiring (Units That Come from the Factory Without a Power Cord Attached)

WARNING: Do not connect the power cord to the power supply until instructed to do so.

Units With Power Connector Mounted to the Back

1. Connect a C20 IEC power cord (not supplied) compatible with the electrical outlet installed in the facility and that meets specifications.

Units With Strain Relief Mounted to the Back

1. Remove the top and left side covers to expose the terminal block.
2. Loosen the strain relief on the back of the unit.

[Diagram: Steps for connecting wiring with strain relief]

Electrical Connection

Connection to a Junction Box

WARNING: Turn off power to the junction box at the circuit breaker panel and lock out and tag the circuit breaker before connecting the power cable to the junction box.

1. Connect the power cable wires to the terminals in the junction box and replace the cover. See the ELECTRICAL SCHEMATIC for power supply requirements.

Connection to an Electrical Outlet

WARNING: Connect the power cord only to the appropriate type and size electrical outlet. If it is not compatible, either have the cord replaced or have the electrical outlet upgraded by a licensed electrician. Do not use an extension cord. Do not use a power cord/plug that is damaged.

1. If not already installed, install the appropriate type of power plug for your locality. Consult local electrical codes to determine the approved type of power plug for your region.
2. Connect the power plug to the appropriate electrical outlet.

[Image: Connecting a power plug to an electrical outlet]

Power Up the Unit

1. Turn on the water supply valve.
2. Make sure the circuit breaker supplying power to the dispenser is on.
3. Turn the toggle switch on the back of the dispenser to the ON position. The water tank will start to fill. Inspect the water supply line for leaks while the tank is filling.
4. When the water level in the tank rises to the correct volume, the heating element(s) will turn on automatically. Depending on incoming water temperature and electrical specifications, the water tank typically requires 1 hour to reach the factory set operating temperature. When the water has heated, “Ready to Dispense” should be on the display.
5. If the unit is equipped with a hot water faucet, before using it for the first time, dispense 12 oz./350 ml of hot water from the faucet to purge air from the tubing inside the unit.
6. Dispense at least 12 oz./350 ml from each spout to purge any remaining air from the tubing. During initial dispensing, and whenever the filter is replaced, you may hear sounds of air being purged from the filter, tubing, and water tank.

[Image: Water supply valve being turned on]

Operating Instructions

Dispensing

WARNING: TO AVOID SCALDING, AVOID SPLASHING. Keep body parts clear of the spout during dispensing. Do not remove the cup during dispensing.

The G3 dispenser is factory preset for optimal performance.

1. Ensure the unit is ON. Confirm the rear toggle switch is in the correct position. “Ready to Dispense” should be on the display.
2. Open the front panel. Depending on the model, the panel swings to the right or up. Turn the elbow on each canister to be filled upward, then lift each canister up and out. Fill with powdered cappuccino product.
3. Reinstall each canister in its original spot. Properly mate the gear socket on the back of each canister with the gear inside the dispenser. Turn the canister elbows downward and close the door.
4. Place a cup under the spout for the desired flavor. If the dispenser is set for iced coffee, fill the cup with ice first.
5. Preset Dispense Models: Push and release the dispensing button for the desired flavor and cup size. Remove the cup when product stops flowing.
6. Manual Dispense Models: Push and hold the dispensing button for the desired flavor. Release the button when the cup is 3/4 full. Remove the cup when product stops flowing.

[Diagram: Steps for filling canisters and dispensing]

Cleaning Instructions

Spout Cleaning - Every 3 or 4 Hours

1. Ensure power is ON.
2. Place a container under the dispense spout to catch rinse water.
3. Rinse each flavor by pressing and holding the WASH button, while simultaneously pressing one of the PUSH dispensing buttons on the control panel. Continue holding the WASH button until the water running from the spout runs clear.

[Image: Person pressing WASH and PUSH buttons, with water rinsing spout]

Cleaning the Exterior - Daily

WARNING: HOT SURFACES - Allow the dispenser to cool before cleaning to avoid injury.

WARNING: DO NOT immerse the dispenser in water or any other liquid.

NOTICE: Do not use cleaning liquids, compounds, or powders containing chlorine (bleach) or corrosives, as they promote corrosion and will damage finishes. USE OF THESE PRODUCTS WILL VOID THE WARRANTY.

The dispenser should be OFF. Turn the brewer off by flipping the rear toggle switch to the OFF position.

1. Wipe the exterior dispenser surfaces with a damp cloth to remove spills and debris.
2. Lift the drip tray to remove. Remove the louvered grill from the drip tray, wash the tray with detergent solution. Wash the louvered grill, then rinse both pieces with water and dry.
3. Wipe and clean the dispensing area with the detergent solution, then reinstall the drip tray.

[Image: Cleaning the exterior of the dispenser and drip tray]

Cleaning The Whipper Plate Assembly PCNG Series - Weekly or As Needed

Cleaning requires a mild solution of dish-washing detergent and warm water, One-Pro Beverage Equipment Cleaner (Curtis PN WC-79001), and food grade lubricant (Curtis PN WC-4916). Mix One-Pro cleaner at a ratio of 1 oz. (28 g) per 5 gal. (19 L) of hot water (122°F/50°C min.).

The dispenser should be OFF. Turn the dispenser off by turning the rear toggle switch to the OFF position.

1. Remove the dispensing spout from the whipper chamber. Clean the inside using a narrow brush.
2. Pull the upper mixing cup forward and twist it up and to the left to separate it from the lower mixing cup.
3. To remove the lower mixing cup, pull it up and forward to free it from the hot water inlet.
4. Take hold of the whipper chamber. Turn it clockwise to free it from the mounting plate.
5. Pull the whipper propeller off of the motor shaft.
6. Wash, rinse, sanitize, and air dry the whipper assembly parts using the 3-sink method. Wash in mild detergent solution, rinse in warm clean water. Place faucet parts in One-Pro solution and soak for 15 minutes. Then rinse thoroughly and air dry.
7. Clean the motor shaft with a cloth and mild detergent before removing the mounting plate.
8. Twist the mounting plate clockwise and pull it off the motor shaft. IMPORTANT: Do not remove the mounting pillars to remove the mounting plate.
9. Clean the area behind the mounting plate and the water inlet fitting.
10. Lubricate the center seal of the mounting plate with food grade lubricant before reinstalling.
11. Reassemble the cleaned whipper assembly parts into the unit in reverse order.

CAUTION: When replacing the propeller, line up the “D” shaped mark on the propeller with the “D” shape on the motor shaft. Failure to line up the propeller properly will cause it to fuse with the shaft. This condition is not covered under the warranty.

[Diagram: Exploded view of whipper plate assembly parts and 3-sink cleaning method]

Programming Guide

To enter programming mode: With unit ON, press and hold the STOP/WASH button for 10 seconds.

• While pressing STOP/WASH, “Washing...Select Station” appears on the display.
• After 10 seconds, the programming menu appears.

[Image: Control panel with buttons labeled]

Label style and STOP/WASH button location varies. On PCGT6 models, the buttons are located inside the front door.

IMPORTANT: All programming functions are performed with the three center buttons.

Button symbols:

• 1: Scroll UP
• 2: SELECT or ENTER to save new parameter
• 3: Scroll DOWN

Once in programming mode, use the scroll buttons (1 or 3) to navigate functions/features. Press Select (2) to make changes. Use scroll buttons (1 or 3) to adjust settings. See Programming Options for detailed descriptions.

Programming Options

• Manual Dispense: Sets stations to Manual Dispense mode. Access by pressing ⊙, then the PUSH button for the desired station. “Saving Complete!” will appear.
• Dispense by Time: Sets unit to dispense product by time. Access by pressing ⊙, then the PUSH button for the station. Press PUSH again to finish.
• Temperature: Sets water tank temperature (80°F to 204°F / 27°C to 96°C). Recommended for iced coffee is 96°F. For others, 190°F. Press ⊙ to access, use or to choose temperature, then press ⊙ to set.
• Powder % Ratio: Sets the ratio of product powder dispensed (0% to 100%). Factory default is 60%. Press ⊙ to access, use or to adjust ratio, then press ⊙ to set.
• Service Call: Sets the service phone number displayed for SENSOR ERROR or WATER LEVEL ERROR. Press ⊙ to access, use or to choose number, press ⊙ repeatedly to change value.
• Banner Name: Changes the banner name on the display. Factory default is CURTIS. Press ⊙ to access, use or to choose letter, press ⊙ repeatedly to change letter.
• Dispense Odom: Displays total dispense cycles since last reset. Press ⊙ to access.
• Dispense Total: Displays total dispense cycles; cannot be reset.
• Language: Changes display language. Factory default is English. Press ⊙ to access, use or to choose setting, then press ⊙ to exit.
• Valve Calibrate: Calibrates dump valves. Pours water for 10 seconds. See Dump Valve Calibration in Troubleshooting Section. Press ⊙ to access. Place cup under spout, press PUSH button above cup. Water dispenses for 10 seconds. Press ⊙ to measure flow rate or continue.

*Approximate

Rough-In Drawing

[Diagram: Dimensional drawings of the PCNG 3 dispenser, showing height, width, depth, and cup clearance.]

Illustrated Parts List

The manual includes exploded views and parts lists for various assemblies, including:

• PCNG 3 - Door Assemblies
• PCNG 3 - Exterior
• PCNG 3 - Interior Components
• Tank Assembly (120 Volt)
• Tank Assembly (120/220 Volt)
• Tank Assembly (120 Volt with Hot Water Faucet)
• Tank Assembly (120/220 Volt with Hot Water Faucet)

Each section provides item numbers, part numbers, and descriptions for all components.

Electrical Schematics

The manual includes electrical schematics for PCNG4/PCNG5 - 110-120 Volt Models and PCNG4/PCNG5 - 120/220-240 Volt Models. These schematics detail wiring, pin assignments for UPM, UCM, and switch modules, and electrical rating tables.

Troubleshooting Guide

WARNING: Electric Shock Hazard - procedures are for qualified service technicians only. Disconnect power when replacing components.

WARNING: Scald and Burn Hazard - keep body parts clear of hot surfaces during troubleshooting.

IMPORTANT: When replacing the universal power module (UPM), check all inlet and dump valve coils for shorts and replace valves as necessary.

Troubleshooting Guidelines

• If an error message appears, consult the ERROR CODES section.
• Ensure the unit is properly leveled.
• Use this guide along with the appropriate ELECTRICAL SCHEMATIC.

Valve Test Procedure

• Use a digital multi-meter to measure the resistance of valve coils.
• Measure resistance across valve coil terminals with wiring harness disconnected. Reverse meter leads; resistance less than 100 ohms indicates a shorted coil; replace the valve.
• To test for an open coil: Reconnect terminals, power up dispenser, and monitor voltage at valve coil terminals. You should hear the valve click. The inlet valve should open when the water tank is not full. If the valve does not open, replace it. If voltage is not detected, check wiring. If wiring is OK, replace the UPM.

Water Not Hot Enough

• Check temperature setting on the control panel. Reprogram if necessary.
• If setting is correct but temperature is not, replace the temperature sensor.

Water Heats More Slowly Than Usual

• Check for power across heating element terminals. If power is supplied, disconnect element(s) and check for continuity. Replace if resistance is too high (nominal resistance is 13 Ohms).
• If no power to heating element(s), check wiring. Also check for corroded connections.

Water Does Not Heat At All

• Check water level probe contact. See “Tank Does Not Fill”.
• If water heats but not enough, see “Water Not Hot Enough”.
• If “Ready to Dispense” appears but water is not hot, check temperature sensor resistance. If less than 10 kΩ and water is not hot, replace sensor. If sensor resistance is above 10 kΩ when cool, replace UPM.
• If “Heating...” appears but water is not hot: Check for power across heating element terminals. If power supplied, check for open element. If no power to element, trace circuit. If power into triac but not out, check gate terminal. If connections good and power supplied to triac but no voltage out of A2, replace triac. If power not supplied from UPM, check wiring from UPM to triac. If wiring OK, replace UPM.

Water Too Hot (Boiling or Excessive Steaming)

IMPORTANT: For elevations above 2000 ft (600 m), set control panel temperature to 190°F (88°C).

• If “Over Temp Sensor” or “Ready to Dispens” appears and water is too hot, go to “Over Temp Sensor Error Message”.
• If “Heating...” constantly appears, check temperature sensor attachment and heat sink compound. Sensor resistance should be around 7 kΩ when hot. If not, replace sensor.
• Check if UPM constantly outputs power to the triac, regardless of sensor resistance. If so, UPM is likely bad.
• If UPM is working, check for a bad triac.

Sensor Error Message

Indicates a malfunction (open circuit) in the temperature sensor system. To reset, turn toggle switch OFF for 5 seconds, then ON.

• Check temperature sensor resistance while disconnected from UPM. If open circuit (resistance > 200 kΩ), replace sensor.
• If sensor resistance is less than 200 kΩ, check sensor wires for corrosion and reconnect to UPM. If error persists after resetting, replace UPM.

No Power - Display Not Lit

• Ensure circuit breaker is not tripped and is ON.
• Ensure power plug is connected to receptacle.
• Ensure main power toggle switch is ON.
• Verify all wires from power cord are properly connected. Check for loose connections or burned/overheated wires. Check chassis ground.
• Check power and ground supply to UCM. If power is into UCM but display is blank, UCM is likely bad.
• If no power into UCM, trace circuit back to power cord. If power into thermostat reset switch but not out, check if tank is empty. If empty, reset switch may have opened due to low water level; see “Water Tank Does Not Fill”. If water in tank but no power out, push reset switch button. If power restores, check if switch opens at wrong temperature. If still no power, replace thermostat reset switch.

Water Tank Overfills

• Turn toggle switch ON and OFF. If water continues to flow in both positions, replace inlet valve.
• If water stops flowing when switch is OFF and flows when ON, remove orange wire from water probe. Short orange wire to metal surface of tank. If tank stops filling, check water probe connection.
• If water does not stop flowing when orange wire is shorted, check tank ground connection and orange wire continuity to UPM. If OK, replace UPM.

Water Tank Does Not Fill

IMPORTANT: No water or low water can cause tank to overheat, opening thermostat reset switch. If no power to control panel after correcting fill problem, push reset switch button.

• Check water supply is ON. Check for plugged supply line, clogged filter, or plugged inlet valve.
• If no plugs, check power across inlet valve terminals. If power supplied but no flow, replace inlet valve.
• If no power supplied to inlet valve, check UPM wiring. Check for corroded connections.
• If UPM wiring is OK but no power to inlet valve, remove orange wire from water tank probe. If tank fills, replace water probe. If tank does not fill, replace UPM.

Water Level Error Message

Occurs when inlet valve solenoid is on too long during fill or refill. See ERROR CODES section for maximum times. To reset, turn toggle switch OFF for 5 seconds, then ON, or press and hold button on control panel.

• Check flow rate from water supply meets minimum specifications. Check water pressure.
• Check for blockage at inlet valve inlet/outlet or in tubing to water tank.
• Check water probe wire for open condition or corroded connections.
• If probe connections OK, cycle power OFF then ON. Check if power is applied to inlet valve terminals. If power applied but no water flow, replace inlet valve.
• Check for power from UPM to inlet valve. If wiring OK, replace UPM.

Water Flows From Dispenser Spout Constantly

• Check if water continues to flow when toggle switch is OFF. Replace any stuck-open valve.
• If valve turns on when switch is ON and off when OFF, replace UPM.

No Water Flows From the Spout While “Dispensing...” Appears on the Display

Condition: Whipper motor runs, powder dispensed, but no water.

• Check if power is supplied to associated dump valve when dispense button is pushed. If power supplied but no water flow, replace valve.
• If power not supplied to dump valve, check UPM wiring.
• If wiring OK, check UPM output power while dispense button is pressed. Replace UPM if no power out.

Cup Not Filled To Normal Level During Dispensing or Overflows (Preset Dispense Models Only)

Check if UCM Dispense by Time setting is correct. See PROGRAMMING GUIDE section.

Only Water is Dispensed

Condition: Water flows, whipper motor runs, but NO powder is dispensed.

• Check if canister is empty.
• Check if powder is damp (inhibits flow). Moisture buildup may be due to exhaust fan not working. Check fan power and rotation.
• Check if Powder % Ratio is set to 0%. See PROGRAMMING GUIDE section.
• Remove canister. Push dispense button and check canister gear at compartment back. If turning, check for stripped gear on canister or motor shaft. If gears OK, check canister auger assembly.

Product Dispensed Into Cup is Weak

IMPORTANT: Dump valves should NOT be field adjusted for product strength. Adjustments must be done through programming.

Condition: Water flows, whipper motor runs, but powder flow is too low.

• Check if canister is full.
• Check if powder is damp. Check if exhaust fan is working.
• Check if Powder % Ratio is set correctly. See PROGRAMMING GUIDE section.
• Check for stripped gear on canister or motor shaft. If gears OK, check canister.

Whipper Motor Does Not Run During Dispensing

Condition: Whipper motor does not run, but water and powder flow when dispense button is pushed.

• Check if power is supplied to associated whipper motor. If power supplied but motor does not run, replace motor.
• If power not supplied, check UPM wiring.
• If wiring OK, check UPM output power while dispense button is pressed. Replace UPM if no power out.

Dispenser Does Not Respond (at all) When Dispense Button is Pushed

• If “Dispensing...” appears, check UCM/UPM wiring and connections. If wiring OK, suspect UCM or UPM.
• If “Dispensing...” does not appear, check for faulty membrane panel or encoder. Then, check for bad UCM.

Dispenser Overflows During Dispensing

• Manual dispense models: Release dispense button when cup is 3/4 full.
• Preset dispense models: Check Dispense by Time setting. See PROGRAMMING GUIDE section.

Front Panel Light Not Working

• Tubular LED light: Check for 120 Vac into light power supply and 36 Vdc out. Check for 36 Vdc to light fixture. If power supplied but light does not come on, replace light assembly.
• Florescent or new style LED light assembly: Ensure power is supplied to the light fixture. If power supplied but light does not come on, replace light assembly.

Dump Valve Calibration

After installing a new dump valve, do not reinstall the cover and canisters to perform calibration.

1. Turn toggle switch ON. Wait for ready light.
2. Place measuring cup below spout of replaced dump valve.
3. Push DISPENSE button. Time flow rate. Water should flow at 7 oz. (8 oz. Max) in 10 seconds. If OK, skip to step 6. If too high or too low, proceed.
4. Open front door. Using a 6 mm hex wrench, turn adjustment screw on valve front one half turn (counterclockwise to increase flow, clockwise to decrease).
5. Close door and recheck flow rate. If 7 oz. (8 oz. Max) in 10 seconds, replace dump valve cover and canisters. If still out of calibration, repeat steps 4 and 5 until correct.
6. Replace dump valve cover and canisters when flow rate is correct.

*All PCNG series units, except Pre-Set Dispense models, have a valve calibration feature dispensing water for 10 seconds, eliminating manual timing. See Programming Guide.

Error Codes

System Fault Messages

An error message appears on the screen for malfunctions under the following conditions:

• Water level overflow: Insufficient incoming water flow/pressure or water overflow condition. Unit stops functioning.
• Break in temperature control circuit.
• Break in control board communication circuit.

If any errors appear, turn off the main power toggle switch and call for service.

Product Warranty

Wilbur Curtis Co., Inc. certifies products are free from defects in material and workmanship under normal use.

• 3 years, parts and labor, on digital control boards from original date of purchase.
• 2 years, parts, from original date of purchase on all other electrical components, fittings, and tubing.
• 1 year, labor, from original date of purchase on all other electrical components, fittings, and tubing.
• Grinding burrs: 4 years from date of purchase.
• Stainless steel components: 2 years against leaking or pitting from date of purchase.
• Replacement parts: 90 days from date of purchase or remainder of equipment's limited warranty period.

All in-warranty service calls require prior authorization. Call Technical Support at 800-995-0417. View full warranty information at www.wilburcurtis.com.

CONDITIONS & EXCEPTIONS

• Warranty covers original equipment at time of purchase only. Wilbur Curtis Co., Inc. assumes no responsibility for substitute replacement parts not purchased from Wilbur Curtis Co., Inc.
• Adjustments and cleaning: Resetting safety thermostats/circuit breakers, programming, and temperature adjustments are the equipment owner's responsibility. Owner is responsible for proper cleaning and regular maintenance.
• Replacement of items subject to normal use and wear: Includes spray heads, faucets, light bulbs, shear disks, O-rings, gaskets, silicone tubing/elbows, canister assemblies, whipper chambers/plates, mixing bowls, agitation assemblies, and whipper propellers.

Warranty Void Under the Following Circumstances:

• Improper operation: Equipment must be used for its designed and intended purpose.
• Improper installation: Must be installed by a professional technician complying with all local electrical, mechanical, and plumbing codes.
• Improper voltage: Equipment must be installed at the voltage stated on the serial plate.
• Improper water supply: Includes excessive/low pressure or inadequate/fluctuating flow rate.
• Damaged in transit: Responsibility of the freight company; file claim with carrier.
• Abuse or neglect: Includes failure to periodically clean or remove lime accumulations. Equipment must be maintained per manufacturer's recommendations.
• Unauthorized repair or modification: Must be serviced only by qualified service technicians using factory-specified parts.
• Modified/Missing Serial Tag: Serial number label must not be defaced or removed.

Repairs/Replacements are subject to Curtis' decision regarding faulty workmanship or parts under normal use. Labor performed during regular working hours. Overtime charges are owner's responsibility. Charges for delays, waiting time, or operating restrictions hindering service technician are owner's responsibility. Wilbur Curtis Co., Inc. allows up to 100 miles, round trip, per in-warranty service call.

Return Merchandise Authorization (RMA): All warranty claims must be submitted to Wilbur Curtis Technical Support Department prior to repair/return. All returned equipment must be repackaged in the original carton and received by Curtis within 45 days of RMA issuance. No units accepted if damaged in transit due to improper packaging. NO UNITS OR PARTS ACCEPTED WITHOUT RMA. RMA NUMBER MUST BE MARKED ON CARTON OR SHIPPING LABEL. All warranty claims must be submitted within 60 days of service. Invoices require RMA number. Defective parts must be returned for warranty invoice processing and approval. All in-warranty service calls must be performed by an authorized service agent. Call Wilbur Curtis Technical Support to find an agent.