Whirlpool ADN 112, ADN 108, ADN 109, ADN 117, ADN 118 INSTRUCTION FOR USE

ICE CUBES MAKERS Range

SPRAY Technology

CONTENTS
Introduction
Warnings........................................................................................................................................	3
Description – Operating Principles....................................................... ..........................................	5
Operating principle following the electric diagram........................................................ ..................	6
Specifications
Diagrams of connections and dimensions......................................................................................	9
Consumptions, weights, packaged dimensions and volume.........................................................	10
Technical Data ............................................................................................................................	11
Production Figures ......................................................................................................................	12
Reception of the machine
Packaging - Housing – Specifications plate .................................................................................	16
Installation
Required conditions for placement of unit - Water and drainage..................................................	17
Connection to water mains (water condensing ) – Connection to drain – Electrical connection ....	18
Starting
Preliminary checking...................................................................................................................	19
Starting .......................................................................................................................................	20
Adjustments
Fan pressostat (air condensing)...................................................................................................	21
Security pressostat......................................................................................................................	22
Maintenance and cleaning instructions and procedures
Maintenance chart.......................................................................................................................	23
Water condenser – Air condenser - Evaporator / Water tray........................................................	24
Storage bin – Housing - Pipes and nozzles..................................................................................	25
Water Filter – Water leaks control ...............................................................................................	26
Special advises of use R404A Refrigerant.............................. ... ............................................................	26
Troubleshooting .....................................................................................................................................	27

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INTRODUCTION

Thank you for choosing ITV's NG DP Ice Cube Maker.

You have purchased one of the most reliable ice-making products on the market today. Carefully read the instructions contained in this manual since they provide important information relative to safety during installation, use, and maintenance.

WARNINGS

-This appliance should be installed by approved Technical Service Personnel.

-This plug should be accessible at all times.

-To reduce the risk of electrical shock, ALWAYS disconnect the machine BEFORE cleaning or maintaining the equipment. Do not attempt to install, service, or modify this machine.

-Improper use by other than specially trained technicians is extremely dangerous and may result in a fire or electric shock.

-This product has not been designed for any uses other than producing ice cubes with drinking water.

-It is extremelly dangerous to modify or try to modify this appliance. Besides it would automatically cancel the warranty totally.

-This appliance is not intended for use (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

-Children should be supervised to ensure that they do not play with the appliance.

-This machine should not be placed outdoors or exposed to rain.

-Connect to drinking water mains.

-Connect only with the powerd supply cord supplied with the machine.

-This appliance is not intended to be connected to a fix canalization.

-Please follow the instructions given by the manufacturer in order to guarantee the efficiency of this machine and a proper operation. THE CLEANING AND MAINTENANCE should be carried out by trained personnel in most of the cases.

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IMPORTANT:

-Do not attempt to service this machine yourself. Improper use by other than specially trained technicians is extremely dangerous and may cause severe damage to the unit. In case of breakdown contact an authorised distributor. We strongly recommend using only original replacement parts.

-Waste and other material should be disposed in accordance to local regulations and procedures for waste disposal.

CLEANING AND MAINTENANCE OPERATIONS ARE NOT COVERED BY THE

WARRANTY AND WILL BE INVOICED BY THE INSTALLER..

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DESCRIPTION

Main features:

−Stainless steel body AISI 304 and chapa galvanizada.

−Anti-blocking spray nozzles.

−Pump without seals.

−High pressure safety pressostats even in air-cooled machine.

−Large condensers (work well at high ambient temperatures; and reduce cooling water consumption in water-cooled machines).

−TRANSPARENT CUBES with most of the water mains.

ALFA CUBE

GALA CUBE

DELTA CUBE

SUPER STAR CUBE

OPERATING PRINCIPLE

WHEN SWITCHING ON THE MACHINE FOR THE FIRST TIME, THE MACHINE SHOULD

BE PLACED ON THE DEFROSTING STAGE. To do so, turn the wheels on the timer until the microswitches are depressed.

-At this moment, the compressor is working; the water inlet valve and hot gas inlet valve are both open. The water bin fills with water, any excess is lost via the maximum level overflow.

-After a period of time controlled by the timer the hot gas valve and water inlet valve are closed. The pump then sends water to the evaporator where the ices cubes are gradually formed. The evaporation temperature slowly descends until it reaches a point where the cycle thermostat is connected and starts the timer. Once this time has elapsed, the defrosting stage (3-4 minutes) begins. The pump is off and the hot gas and water valves are open. Some water is sent to the top of the evaporator to help the cubes unstick.

-Once the defrosting stage is over, the cycle begins again, and so it continues until the bin is full of ice, and contact between the bin thermostat situated at the top of the bin and the ice will stop the machine. The bin thermostat will never stop the machine in midcycle.

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OPERATING PRINCIPLE FOLLOWING THE ELECTRIC DIAGRAM (TIMER ON

DEFROST - MICROSWITCHES DEPRESSED).

- The ITV model NG has two switches:

1st In the frontal side of the machine (with led). This turns the machine on or off when we press it.

2nd The second switch is located in the electrical panel. This one stops the condensing unit, but keeps the hydraulic part in operation and allows to do the cleaning of the machine

(except in NDP20 model).

-Current reaches the machine via the line connecting the blue (1) and brown (2) terminals. The brown wire connects the compressor and timer motor. The blue wire connects bin thermostat T1 which closes the circuit with 2. A different blue wire goes to 2 on terminal G1 which at this moment is connecting 1 and 4.

-A red wire connects bin thermostat T1 and micros G1 and G2 which close the circuit with 4 and provide current via G1 to the timer G.

-At this point the following are connected: v COMPRESSOR (S)

vWATER INLET VALVE (P)

vHOT GAS VALVE (Q)

vTIMER MOTOR (G)

-Since the motor of the timer (G) is working, during 1÷3 minutes the roler of micro of the second water inlet coil (cleaning valve drive) is depressed until the pins release the micro, closing this valve..

-After 2 to 4 minutes micros G1 and G2 will open and close circuits 1-2.

-Via terminal 2 on micro G2, current reaches the pump. Circuit 4 on micro G2 which provides current to the hot gas valve (Q) and water inlet valve (P) will be interrupted. Since the thermostat is between 1 and 3 the timer will receive no current. The compressor continues switched on.

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-Air-cooled machines have a fan (R) which is controlled by the pressostat (F).

-In water-cooled models without pressostatic valve, pressostat (J) opens and closes the condenser electrovalve (K).

-Evaporator temperature decreases until the cycle thermostat (T2) set point is reached, at this temperature circuit 1-2 will be closed and timer motor (G) will switch on.

-Once the cycle is over, the pins on the timer wheels will force the micros to change circuits, stopping the pump and opening the hot gas valve and water valve. The combined effect of hot gas and water sprayed on the top of the evaporator will release the ice cubes and change the position of the cycle thermostat (T2).

-The ice production and defrosting cycle will continue until the ice storage bin is full, at which point cycle thermostat (T1) will disconnect the machine, but never during a cycle, but at the beginning of the defrosting stage, since during the production cycle, current will reach the pump via terminals 1-2 of micro G1.

-The machine will remain disconnected until the level of ice in the bin drops below the thermostat because of ice consumption. At this point the bin thermostat T1 changes and the machine will start a new production cycle automatically.

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SPECIFICATIONS

Models:

NDP 20

NG DP 30 - 150.

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