Niagara 65 IB AC EC - User Manual

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

This document describes the Niagara Electronic Control water cooler, available in both floor-standing (SL) and countertop (TOP) models.

Function Description

The Niagara Electronic Control water cooler is designed to dispense large quantities of cold, still, or carbonated water. It features an internal refrigeration system that cools water to a temperature range of 3°C to 10°C using a direct cooling system (ice bank). The appliance is equipped with an electronic control system that allows for various settings and functions, including:

Dose Selection: Users can select between pre-set "SMALL" (0.5 liters) and "LARGE" (1 liter) doses for cold, room temperature, and carbonated water. Alternatively, a pulse delivery mode allows water to be dispensed as long as the button is held down.
Thermostat Modes: The thermostat can be set to "SUMMER" mode for lower water temperatures, suitable for warm environments and high demand, or "WINTER" mode for higher water temperatures, suitable for colder climates and limited demand.
Temperature Adjustment: Specific temperature values can be chosen for both "WINTER" (default -3°C) and "SUMMER" (default +2°C) settings.
Language Selection: The display language can be set to Italian, English, or German.
EXTRA CC Function (for carbonated water): This feature is designed for "LARGE" carbonated doses to prevent narrow-neck carafes from overflowing. It dispenses 90% of the pre-set volume, pauses for a few seconds, and then completes the dose.
WASH TIME Setting: This function allows the machine to perform periodic flushing and rinsing of the hydraulic circuit to limit bacterial proliferation.
LAMP ALARM: Alerts the user when the UV lamp (if installed in the distribution area or water circuit) is nearing the end of its life (90% of preset lifetime).
FILTER ALARM: Alerts the user when the water filter (if installed) is nearing the end of its life (90% of preset total capacity).
Personalized Welcome Message: Allows for customization of the welcome message displayed on the screen.
Energy Saving Function: This mode reduces power consumption by putting the cooler on standby, significantly saving energy during periods of inactivity. The compressor cycles are reduced while maintaining a suitable temperature for quick resumption of normal operation.
Water Dispensed Counter: Tracks both total and partial amounts of water dispensed.
Self-Diagnostic System: Provides malfunction alerts via a red LED (L) and displays alarm messages on the screen. Multiple alarms are shown in sequence.
UV Lamp Operation Counter: Tracks the operating days of the UV lamp if installed.

Some models (WG versions) are capable of producing carbonated water and require connection to a food-grade CO2 cylinder. The countertop models (TOP) are equipped with an inlet solenoid valve for safety (anti-flooding).

Important Technical Specifications

Water Production:
- Niagara IB EC and Niagara TOP IB EC models: 65, 120, or 180 liters/hour (17.2, 31.7, or 47.5 US gallons/hour) for both AC and ACWG versions.
Water Outlet Temperature: 3°C to 10°C (38°F to 50°F).
Continuous Cold Water Production: 40, 70, or 100 liters (10.6, 18.5, or 26.4 US gallons).
Ice Bank Capacity: 4.5, 6.5, or 11.5 kg (10, 14.3, or 25.3 lbs).
Cooling System: Ice bank / Direct cooling system.
Compressor: 1/6, 1/3, or 1/3 HP.
Rated Input: 300, 520, 680, 900, 680, 900, 300, 520, 750, 1000, 750, 1000 Watts (depending on model).
Power Supply: 220-240V / 1 / 50 Hz. Special voltages are indicated on the serial number plate.
Carbonating System: Available on ACWG models.
Net Weight: 33 to 54 kg (73 to 119 lbs), depending on the model.
Refrigerant Charge: FREON R 134A, 160, 250, or 390 grams.
A-Weighted Sound Pressure Level: < 70 dB.
Ambient Temperature: Min 10°C, Max 45°C.

Dimensions (mm):

Niagara EC SL - EC SL WG (Floor-standing):
- A: 405 mm (65, 120, 180 IB AC EC) / 560 mm (65, 120, 180 IB ACWG EC)
- B: 480 mm
- H: 1480 mm
Niagara TOP EC - TOP EC WG (Countertop):
- A: 370 mm
- B: 422 mm (TOP 65 IB AC EC) / 482 mm (TOP 120IB AC EC) / 532 mm (TOP 180IB AC EC)
- C: 499 mm
- D: 345 mm
- H: 510 mm

Usage Features

Installation: The appliance must be installed on a flat surface in a dry, clean, and indoor environment, away from direct sunlight, heat sources, and inflammable solvents. Electrical and hydraulic connections must be performed by a qualified technician according to local norms.
CO2 Cylinder Connection (WG models): For carbonated water, a food-grade CO2 cylinder is required. The pressure reducer (R) must be connected to the cylinder, ensuring the gasket is correctly positioned. For floor models, the cylinder is housed inside the cabinet and secured with a strap. For countertop models, the cylinder is positioned outside the unit.
Circuit Filling: After connecting to the water supply, open the water tap and check for leaks. Adjust the thermostat to the desired setting (SUMMER/WINTER). For carbonated water, press the sparkling water button to eliminate air from the circuit, and repeat for cold water.
Sparkling Water Setup: Open the CO2 cylinder tap and press the carbonated water button until carbonated water starts flowing.
Cover Opening: To access internal components, switch off the machine, disconnect the power cable, and remove the screws securing the cover.
Energy Saving Mode: Activated by pressing the "Energy Saving" button. To exit, press any button.
Dose Programming: Access the "SETUP DOSES" menu by pressing and holding the menu button until "D" appears. Follow on-screen instructions to set "SMALL" or "LARGE" doses for each water type.
CO2 Cylinder Autonomy: A 4 kg (8.8 lbs) cylinder provides approximately 700 liters (184.1 US gallons) of carbonated water, while a 10 kg (22 lbs) cylinder provides about 1600 liters (420.8 US gallons).
Safety: Always use personal protective equipment (PPE) like gloves and a face mask when performing maintenance on the CO2 circuit due to pressure. Do not expose CO2 cylinders to direct sunlight or temperatures above 50°C.

Maintenance Features

Routine Maintenance (Monthly):
- Power Supply Cable: Check its condition and soundness.
- Hydraulic Connection: Check the condition and soundness of the water supply pipe and drain pipe, and ensure no leaks.
Routine Maintenance (Every Six Months):
- Water Exchange in Ice Compartment: Switch off the appliance and wait at least 4 hours for defrosting. Disconnect the water network supply pipe, drain water for a few minutes to replace the entire content of the compartment, and then reconnect the supply pipe correctly.
UV Lamp Replacement (Every 6000 hours of functioning, approx. 8 months):
- Switch off the machine before operation.
- Wear protective latex disposable gloves to avoid touching the lamp with bare hands, as skin contact can reduce its lifespan.
- Access the appliance near the distribution area, unscrew the tightening screw, remove the cover, replace the lamp, and reassemble all components.
- Warning: Direct irradiation from the UV lamp is dangerous for eyes and skin. Do not turn on the UV light when it is outside the machine or its appropriate lodging.
Hygienic Cleaning (Optional for CU models):
- This operation should be performed upon installation, every 6 months of use, every time the water filter is changed, or after one or more weeks of inactivity. For hospitals, schools, and clinics, it is recommended every 3 months.
- Preparation: Prepare 5 liters of water and add 5% hydrogen peroxide (100 volumes min). Use a graded measure or syringe for dosage.
- Procedure: Connect a pump to the appliance's water inlet and the container with the disinfecting solution. Start the pump to introduce the solution into the machine, then open the taps to let the disinfectant run out from the nozzles. Stop the pump before the solution runs out.
- Soaking: Leave the disinfectant to act for at least 20 minutes.
- Rinsing: Reconnect the appliance to the mains water supply. Let at least 15 liters of water flow out of the taps to adequately rinse the hydraulic system before reuse.
- Filter Declorator: If a declorator filter is installed, remove the filter cartridge and install a dummy cartridge (TEST CAN model) before hygienic cleaning.
Troubleshooting: The manual provides a comprehensive list of anomalies, possible causes (e.g., power failure, faulty probes, clogged filters, gas leaks), and corresponding corrective actions (e.g., replace components, adjust settings, clean parts). Many issues can be resolved by the user, but some require a qualified technician.

Niagara 65 IB AC EC Specifications

General

Brand	Niagara
Model	65 IB AC EC
Category	Water Dispenser
Language	English