Electrolux GP379 User Manual

27

Foreword

The installation, use and maintenance Manual (hereinafter Manual) provides the user with information
necessary for correct and safe use of the machine (hereinafter “machine”, “refrigerator” or “appliance”).
The following must not be considered a long and exacting list of warnings, but rather a set of instructions
suitable for improving machine performance in every respect and, above all, preventing injury to persons

and animals and damage to property due to improper operating procedures.
All persons involved in machine transport, installation, commissioning, use and maintenance, repair and disassembly
must consult and carefully read this manual before carrying out the various operations, in order to avoid wrong and
improper actions that could compromise the machine’s integrity or endanger persons. Make sure to periodically inform
the appliance user regarding the safety regulations. It is also important to instruct and update personnel authorised to
operate on the machine, regarding its use and maintenance.
The manual must be available to operators and carefully kept in the place where the machine is used, so that it is
always at hand for consultation in case of doubts or whenever required.
If, after reading this manual, there are still doubts regarding machine use, do not hesitate to contact the Manufacturer or
the authorised after-sales service centre, to receive prompt and precise assistance for better operation and maximum

efciency of the machine.

During all stages of machine use, always respect the current regulations on safety, work hygiene and environmental
protection. It is the user’s responsibility to make sure the machine is started and operated only in optimum conditions
of safety for persons, animals and property.

The manufacturer declines any liability for operations carried out on the appliance without respecting the
instructions given in this manual.
No part of this manual may be reproduced.

EN

28

A.1 GENERAL INFORMATION

A.1.1 INTRODUCTION

Given below is some information regarding the machine’s intended
use, its testing, and a description of the symbols used (that identify

the type of warning), the denitions of terms used in the manual

and useful information for the appliance user.

A.1.2 INTENDED USE AND RESTRICTIONS

Our appliances are designed and optimised in order to obtain

high performance and efciency. This appliance is designed

for the refrigeration and preservation of foods. Any other use is
deemed improper.
The appliance must not be used by people (including children)
with limited physical, sensory or mental abilities or without
experience and knowledge of it, unless instructed in its use by
those responsible for their safety.
ATTENTION: The machine is not suitable for installation outdoors
and/or in places exposed to atmospheric agents (rain, direct
sunlight, etc.).

ATTENTION!
Do not store explosive substances, such as

 pressurisedcontainerswithammablepropellant

( ), in this appliance.

The manufacturer declines any liability for improper use of
the product.

A.1.3 TESTING AND INSPECTION

Our appliances are designed and optimised, with laboratory

testing, in order to obtain high performance and efciency. The

product is shipped ready for use.
Passing of the tests (visual inspection - electrical test - functional

test) is guaranteed and certied by the specic enclosures.

A.1.4 DEFINITIONS

Listed below are the denitions of the main terms used in the

manual. Read them carefully before using the manual.

Operator

machine installation, adjustment, use, maintenance, cleaning,
repair and transport personnel.

Manufacturer

Electrolux Professional SPA or any other service centre
authorised by Electrolux Professional SPA.

Operator for normal machine use

an operator who has been informed and trained regarding the
tasks and hazards involved in normal machine use.

Technical assistance or specialised technician

an operator instructed/trained by the Manufacturer and who,

based on his professional and specic training, experience and

knowledge of the accident-prevention regulations, is able to
appraise the operations to be carried out on the machine and
recognise and prevent any risks. His professionalism covers the

mechanical, electrotechnical and electronics elds.

Danger

source of possible injury or harm to health.

Hazardous situation

any situation where an operator is exposed to one or more
hazards.

Risk

a combination of probabilities and risks of injury or harm to health
in a hazardous situation.

Protection devices

safety measures consisting of the use of specic technical means

(guards and safety devices) for protecting operators against
dangers.

Guard

an element of a machine used in a specic way to provide

protection by means of a physical barrier.

Safety device

a device (other than a guard) that eliminates or reduces the risk;
it can be used alone or in combination with a guard.

Customer

the person who purchased the machine and/or who manages

and uses it (e.g. company, entrepreneur, rm).

Electrocution

an accidental discharge of electric current on a human body.

A.1.5 TYPOGRAPHICAL CONVENTIONS

For best use of the manual, and therefore the machine, it is
advisable to have good knowledge of the terms and typographical
conventions used in the documentation.
The following symbols are used in the manual to indicate and
identify the various types of hazards:

ATTENTION!

DANGER FOR THE HEALTH AND SAFETY OF

OPERATORS.

ATTENTION!
DANGER OF ELECTROCUTION ­ DANGEROUS VOLTAGE.

ATTENTION!

RISK OF DAMAGE TO THE MACHINE.

Words further explaining the type of hazard are placed next to
the symbols in the text. The warnings are intended to guarantee
the safety of personnel and prevent damage to the machine or
the product being worked.
The drawings and diagrams given in the manual are not in scale.
They supplement the written information with an outline, but
are not intended to be a detailed representation of the machine
supplied.
The numerical values given on the machine installation diagrams
refer to measurements expressed in mm.

A.1.6 MACHINE AND MANUFACTURER’S IDENTIFICATION
DATA

A reproduction of the marking or dataplate on the machine is
given below:

Potenza Sbrinamento / Defrost Power xxxxx kW

x kW

Resistenza Evaporazione / Evaporation Heater El.

x W

Illuminazione / Lighting

Classe / Class x

xxx KgRefrigerante / Refrigerant xxxxx

Cap. xxx

IP21

Electrolux Professional SPA - Viale Treviso, 15 - 33170 Pordenone (Italy)

2015

Volt xxx xx xxHz

Ser.Nr. xxxxxxxx

Comm.Mod.

FOCLBT

F.Mod. xxxxxxxxx
PNC 9VTX xxxxxx xx
W Tot. xxxx kW

Cyclopentane

Total Current xx A

The dataplate gives the product identication and technical data.

The meaning of the various information given on it is listed below:

F.Mod.

factory description of product

Comm.Model

commercial description

FOCLBT(*)

certication group

PNC

production number code

Ser.Nr.

serial number

V

power supply voltage

Hz

power supply frequency

kW

max. power input

Cyclopentane

expanding gas used in insulation

Total Current

current absorbed

29

Defrost Power

defrost power

Evaporation
Heater El.

heating element power

Lighting

inside light power

Class

climatic class

Refrigerant

type of refrigerant gas

Cap.

nominal capacity

IP21

dust and water protection
rating

CE

CE marking

Electrolux
Professional SPA
Viale Treviso 15
33170 Pordenone
Italy

Manufacturer

* Description of certication group

FO

horizontal refrigerator

CL

Range :CL= Concept Line ; SB= Standard Benet

BT

Temperature range (TN=refrigerated; BT=freezer)

When installing the appliance, make sure the electrical connection

is carried out in compliance with that specied on the dataplate.

ATTENTION!

Do not remove, tamper with or make the machine

“CE” marking illegible.

ATTENTION!

Refer to the data given on the machine “CE”

marking for relations with the Manufacturer (e.g.
when ordering spare parts, etc.).

ATTENTION!

When scrapping the machine, the “CE” marking

must be destroyed.

A.1.7 APPLIANCE IDENTIFICATION

This manual applies to various refrigerator/freezer models.
For further details regarding your model, refer to par. A.2.2
DIMENSIONS, PERFORMANCE AND CONSUMPTION.

A.1.8 COPYRIGHT

This manual is intended solely for consultation by the operator
and can only be given to third parties with the permission of
Electrolux Professional SPA.

A.1.9 RESPONSIBILITY

The Manufacturer declines any liability for damage and
malfunctioning caused by:

• non-compliance with the instructions contained in this manual;

• repairs not carried out in a workmanlike fashion, and

replacements with parts different from those specied in
the spare parts catalogue (the tting and use of non-original

spare parts and accessories can negatively affect machine
operation and invalidates the warranty);

• operations by non-specialised technicians;

• unauthorised modications or operations;

• inadequate maintenance;

• improper machine use;

• unforeseeable extraordinary events;

• use of the machine by uninformed and untrained personnel;

• non-application of the current provisions in the country of use,
concerning safety, hygiene and health in the workplace.

The Manufacturer declines any liability for damage caused by

arbitrary modications and conversions carried out by the user

or the Customer.
The employer, workplace manager or service technician are
responsible for identifying and choosing adequate and suitable
personal protection equipment to be worn by operators, in
compliance with regulations in force in the country of use.
Electrolux Professional SPA declines any liability for any

inaccuracies contained in the manual, if due to printing or
translation errors.
Any supplements to the installation, use and maintenance manual
the Customer receives from the Manufacturer will form an integral
part of the manual and therefore must be kept together with it.

A.1.10 PERSONAL PROTECTION EQUIPMENT

Given below is a summary table of the Personal Protection
Equipment (PPE) to be used during the various stages of the
machine’s service life.

X

Safety

footwear

Protective

garments

Gloves Glasses

Ear

protectors

Mask

Safety
helmet

Stage

Transport

Handling

Unpacking

Assembly

Normal use

Adjustments

Routine

cleaning

Extraordinary

cleaning

Maintenance

Dismantling

Scrapping

X
X
X
X
X

X (*)

X

X (*)
X
X
X
X
X
X

Key:

X

PPE REQUIRED

PPE AVAILABLE OR TO BE USED IF NECESSARY

PPE NOT REQUIRED

(*) During Normal use, gloves protect hands from the cold tray

when being removed from the appliance.

NOTE: The gloves to be worn during Cleaning are the type

suitable for contact with the cooling ns (metal plates).

Failure to use the personal protection equipment by operators,
specialised technicians or users can involve exposure to chemical
risk and possible damage to health.

A.1.11 KEEPING THE MANUAL

The manual must be carefully kept for the entire life of the
machine, until scrapping.
The manual must stay with the machine in case of transfer, sale,
hire, granting of use or leasing.

A.1.12 RECIPIENTS OF THE MANUAL

This manual is intended for:

• the carrier and handling personnel;

• installation and commissioning personnel;

• the employer of machine users and the workplace manager;

• operators for normal machine use;

• specialised technicians - after-sales service (see service
manual).

30

A.2 TECHNICAL DATA

A.2.1 MATERIALS AND FLUIDS USED

The areas in contact with the product are in steel or coated
with non-toxic plastic material. An HFC (R134a(GWP:1430)/
R404a(GWP:3922)) refrigerant uid complying with the current

regulations is used in the refrigeration units. The type of refrigerant
gas used is given on the dataplate.

A.2.2 DIMENSIONS, PERFORMANCE AND CONSUMPTION

REFRIGERATED MODELS

Capacity 2 compartments 3 compartments 4
compartments

External dimensions:

- width mm 1236 1720 2203

- depth: mm 700 700 700
door open mm 1101 1101 1101
drawers open mm 1251 1251 1251

- height: mm 850 850 850
with splashback mm 950 950 950
Compartment dimen sions :

- width mm 365X2 365X3 365X4

- depth mm 580 580 580

- height mm 543 543 543
Rack dimensions mm 325X530 325X530 325X530

Power
supply voltage V/ph/Hz. 230/1+N/50 230/1+N/50

Equivalent sound pressure level Leq (*) dB(A) <70
(*) The value could increase depending on the workplace where
measured.

Negative temperature counters
2 compartments

Weight kg 87
Temp. range in compartment °C -2/+10
Max. room temp era ture °C +43

3 compartments

Weight kg 126
Temp. range in compartment °C -2/+10
Max. room temp era ture °C +43

4 compartments

Weight kg 151
Temp. range in compartment °C -2/+10
Max. room temp era ture °C +43

Negative temperature counters
(arranged for remote unit)

Capacity 2 compartments 3 compartments 4
compartments

External dimensions:

- width mm 1106 1590 2073

- depth: mm 700 700 700
door open mm 1101 1101 1101
drawers open mm 1251 1251 1251

- height: mm 850 850 850
with splashback mm 950 950 950
Compartment dimen sions :

- width mm 365X2 365X3 365X4

- depth mm 580 580 580

- height mm 543 543 543
Rack dimensions mm 325X530 325X530 325X530

2 compartments

Weight kg 87
Temp. range in compartment °C -2/+10
Max. room temp era ture °C +43

3 compartments

Weight kg 126
Temp. range in compartment °C -2/+10
Max. room temp era ture °C +43

4 compartments

Weight kg 151
Temp. range in compartment °C -2/+10
Max. room temp era ture °C +43

- Recommended condensing unit for counter 2/3

compartments
model CML60TB3N

Power supply voltage V/ph/Hz. 230/1+N/50
Refrigerant used type R404a
Thermostatic valve (DANFOSS) type 067U2076

- Recommended condensing unit for counter 4

compartments
model CML80TB3N

Power supply voltage V/ph/Hz. 230/1+N/50
Refrigerant used type R404a
Thermostatic valve (DANFOSS) type 067U2076

FREEZER MODELS

Ca pa ci ty 2 compartments 3
compartments

External dimensions

-width mm 1234 1718

-depth mm 700 700

door open mm 1098 1098
drawers open mm 1245 1245

-height mm 850 850

Compartment di men sions

-width mm 365X2 365X3

-depth mm 580 580

-height mm 543 543

Rack dimensions mm 325X530 325X530
Power
supply voltage V/ph/Hz. 230/1+N/50 230/1+N/50

Equivalent sound pressure level Leq (*) dB(A) <70
(*) The value could increase depending on the workplace where
measured.

Counter with 2 doors

Weight kg 145
Temp. range in compartment °C -20/-15
Max. room temp era ture °C +43

Counter with 1 door and 2 ½ drawers

Weight kg 150
Temp. range in compartment °C -20/-15
Max. room temp era ture °C +43

Counter with 3 doors

Weight kg 216
Temp. range in compartment °C -20/-15
Max. room temp era ture °C +43

Counter with 2 doors and 2 ½ drawers

Weight kg 221
Temp. range in compartment °C -20/-15
Max. room temp era ture °C +43

A.2.2.1 CLIMATIC CLASS

The climatic class given on the dataplate refers to the following
values:

5 (or 7) = 43°C (IEC/EN 60335-2-89)
5 = 40°C room temp. with 40% relative humidity (IEC/EN ISO

23953)

7 = 35°C room temp. with 75% relative humidity (IEC/EN ISO

23953)

31

B.1 TRANSPORT, HANDLING AND STORAGE

B.1.1 INTRODUCTION

Transport (i.e. transfer of the machine from one place to another)
and handling (i.e. transfer inside workplaces) must occur with the
use of special and adequate means.

ATTENTION!

Due to their size, the machines cannot be stacked

on top of each other during transport, handling
and storage; this eliminates any risks of loads
tipping over due to stacking.

The machine must only be transported, handled and stored by

qualied personnel, who must:

- have specic technical training and experience in the use of

lifting systems;

- have knowledge of the safety regulations and applicable laws
in the relevant sector;

- have knowledge of the general safety rules;

- ensure the use of personal protection equipment suitable for
the type of operation carried out;

- be able to recognise and avoid any possible hazard.

B.1.2 TRANSPORT: INSTRUCTIONS FOR THE CARRIER

ATTENTION!

Do not stand under suspended loads during load-

ing/unloading operations.

Unauthorised personnel must not enter the work

area.

ATTENTION!

 The machine’sweightaloneis not sufcient to

keep it steady. The transported load can shift:

- when braking;

- when accelerating;

- in corners;

- on rough roads.

B.1.3 HANDLING

Arrange a suitable area with at oor for machine unloading and

storage operations.

B.1.4 PROCEDURES FOR HANDLING OPERATIONS

For correct and safe lifting operations:

• use the type of equipment most suitable for characteristics
and capacity (e.g. electric pallet truck or lift truck);

• cover sharp edges;

Before lifting:

• send all operators to a safe position and prevent persons
from entering the handling area;

• make sure the load is stable;

• make sure no material can fall during lifting. Manoeuvre verti­cally in order to avoid impacts;

• handle the machine, keeping it at minimum height from the
ground.

ATTENTION!

For machine lifting, do not use movable or weak

parts such as: casings, electrical raceways, pneu­matic parts, etc.

ATTENTION!

For information regarding weight, packing and

handling of the remote unit, refer to the manufac­turer’s instructions.

B.1.5 TRANSLATION

The operator must:

• have a general view of the path to be followed;

• stop the manoeuvre in case of hazardous situations.

ATTENTION!

Do not push or pull the appliance to move it, as it

may tip over.

B.1.6 PLACING THE LOAD

Before placing the load, make sure the way is free and that the

oor is at and can take the load. Remove the appliance from
the wooden pallet, move it to one side, then slide it onto the oor.

B.1.7 STORAGE

The machine and/or its parts must be stored and protected against
damp, in a non-aggressive place free of vibrations and with room
temperature between -10°C and 50°C.

The place where the machine is stored must have a at support

surface in order to avoid any twisting of the machine or damage
to the support feet.

ATTENTION!

Machine positioning, installation and disassembly

must be carried out by a specialised technician.

ATTENTION!

 Donotmakemodicationstothepartssupplied

with the machine. Any missing or faulty parts must
be replaced with original parts.

B.2 INSTALLATION AND ASSEMBLY

To ensure correct operation of the appliance and maintain safe
conditions during use, carefully follow the instructions given
below in this section.

ATTENTION!

The operations described below must be carried

out in compliance with the current safety regula­tions, regarding the equipment used and the op­erating procedures.

ATTENTION!

Before moving the appliance make sure the load

bearing capacity of the lifting equipment to be
used is suitable for its weight.

B.2.1 THE CUSTOMER’S RESPONSIBILITIES

The Customer must:

- provide an earthed power socket of suitable capacity for the

input specied on the dataplate;

- provide a high sensitivity manual-reset differential thermal­magnetic switch. For information regarding the electrical
connection, refer to par. B.2.8 “Electrical connection”;

- check the atness of the surface on which the machine is

placed.

B.2.2 MACHINE SPACE LIMITS

A suitable space must be left around the machine (for operations,
maintenance, etc.). This space must be increased in case of use
and/or transfer of other equipment and/or means or if exit routes
are necessary inside the workplace. Make sure to position the
appliance at least 50 mm from any other machines present in the
room (in fact, close proximity can create problems of condensate
forming on the walls of the appliance), also taking into consideration
the space needed for door opening.

B.2.3 POSITIONING

Install the appliance, taking all the safety precautions required for

this type of operation, also respecting the relevant re-prevention

instructions.
Install the appliance in a ventilated place, away from heat sources
such as radiators or air conditioning systems, to allow correct
cooling of the refrigeration unit components. Never cover the
condenser, even temporarily, as this can compromise correct
operation of the appliance. If the machine is installed in a place
where there are corrosive substances (chlorine, etc.), it is advisable
to go over all the stainless steel surfaces with a rag soaked in

parafn oil in order to create a protective lm. The appliances

maintain their performance characteristics at a room temperature
of +43°C; in any case the max. room temperature at which they

32

can operate is +43°C.
The machine must be taken to the place of installation and the
packing base removed only when being installed.
Arranging the machine:

• position the machine in the required place;

• adjust the height and levelling with the adjustment feet, also
checking correct door and drawer closing:

ATTENTION!

The appliance must be levelled; otherwise its

operation could be affected.

NOTE:

The plug must be accessible even after the appliance

is positioned in the place of installation.

• wear protective gloves and unpack the machine, carrying out
the following operations:

- cut the straps and remove the protective lm, taking care

not to scratch the surface if scissors or blades are used;

- remove the cardboard top, the polystyrene corners and

the vertical protection pieces.
For appliances with stainless steel cabinet, remove the protective

lm very slowly without tearing it, to avoid leaving glue stuck to

the surface. Should this happen, remove the traces of glue with
a non-corrosive solvent, rinsing it off and drying thoroughly; it is
advisable to go over all the stainless steel surfaces with a rag

soaked in parafn oil in order to create a protective lm.

B.2.4 DISPOSAL OF PACKING

The packing must be disposed of in compliance with the current
regulations in the country where the appliance is used.
All the packing materials are environmentally friendly. They can be
safely kept, recycled or burnt in an appropriate waste incineration
plant. Recyclable plastic parts are marked as follows:

PE

polyethylene: outer wrapping, instruction

booklet bag

PP

polypropylene: straps

PS

polystyrene foam: corner protectors

The parts in wood and cardboard can be disposed of, respecting
the current regulations in the country where the machine is used.

ATTENTION: With remote versions, connect the appliance to
the drainage system for the defrost water (kits with automatic
condensate evaporation are available).

B.2.5 POSITIONING MODELS FOR USE WITH REMOTE UNITS

ATTENTION!

Installation of the appliance and the refrigerant

condensing unit must only be carried out by the
manufacturer’s service personnel or by a special­ised technician.

Place the condensing unit in a well-ventilated room away from
heat sources.
If the remote unit is installed outdoors, it must be protected against
the action of atmospheric agents with adequate covering, in any
case ensuring correct ventilation of the condensing unit.
Choose pipe widths according to that given in the technical data
(for recommended units).
Lay the copper piping, choosing the shortest path and avoiding
bends, elbows and vertical sections as much as possible, keeping
to the following:

- in horizontal sections, the inlet line must slope down towards
the condensing unit at an angle of not less than 2%;

- traps must be installed before all upward sections of the inlet
line, at a distance of 3-3.5 metres from each other;

- insulate the inlet line with suitable lagging;

- it is advisable to install the remote unit at a max. pipe length
of between 15 m and 20 m from the appliance.

NOTE: If the distance exceeds 20 m, ask the technical depart-

ment for details or use a more powerful refrigeration unit.

• Install on the delivery line, in the following order: a suitably

sized dehydration lter, a liquid ow indicator and a solenoid

valve, if not present.

B.2.6 EVACUATING THE LINES AND CHARGING WITH
REFRIGERANT GAS
(for installation with remote refrigeration unit)

ATTENTION!

CHARGING WITH REFRIGERANT MUST BE DONE

BY PROFESSIONALLY QUALIFIED PERSONNEL.

B.2.6.1 Leakage test

- Wash the inlet and delivery pipes with pressurised dry nitro­gen;

- connect a nitrogen cylinder to the high and low pressure con­nectors, making sure to also install a pressure gauge (using
a “T” union), and charge the high and low pressure lines with
gas to a pressure of approx. 15 bar. Close the cylinder cock
and, after at least 1 hour, check that the pressure has not
dropped below the previous reading value.

B.2.6.2 Vacuum

- Empty the circuit manually by opening the cocks on the unions;

- connect the pipes to a vacuum pump (preferably a two-stage
model with vacuum gauge and high and low pressure connec­tors). Reach a vacuum level equal to or lower than 70mTorr
(0.0931 mbar). On reaching this level, maintain it for about 15
minutes and then proceed with charging the unit as described
below.

B.2.6.3 Charging with refrigerant

- Charge the high pressure (HP) line with liquid refrigerant for
R404A (to ensure addition of the correct mixture) until bringing
the pressure above 0 bar (atmospheric pressure);

- then shut off the high pressure (HP) line, start the compres-

sor and charge with liqueed gas slowly with short impulses

from the low pressure (LP) line until the bubbles in the liquid
indicator disappear, being careful not to freeze the inlet pipe
(LP) near the compressor.

B.2.7 CHECKS WHEN STARTING UP THE APPLIANCE

Check on the liquid ow indicator that the circuit is sufciently

charged. Otherwise, complete charging following the instructions
in § B.2.6.3.
Using a digital thermometer, check that the temperature reading
on the control panel matches the instrument reading.

B.2.8 ELECTRICAL CONNECTION

Connection to the power supply must be carried out in compliance
with the regulations and provisions in force in the country of use.

ATTENTION!

Work on the electrical systems must only be car-

riedoutbyaqualiedelectrician.

The ap pliance works on a single phase 230V 50Hz power supply .
To connect to the power supply, in sert the power cable plug in
the corr esponding mains so cket , rstmakingsure:

- the so cket has an ef ci ent earth contact and the mai ns voltage

and frequency match that given on the dataplate. In case of

any doubts regarding the efciency of the earth connection
have the system checked by qualied personnel;

- the system power supply is arranged and able to take the
actual current absorption and that it is correctly executed
according to the regulations in force in the country of use;

- a differential thermal-magnetic switch suitable for the input
specied on the dataplate, with contact gap enabling com­plete disconnection in category III overvoltage conditions and
complying with the regulations in force, is installed between
the power cable and the electric line. For the correct size of
the switch, refer to the absorbed current specied on the ap­pliance dataplate.

33

• After making the connection, with the machine running check

that the power supply does not uctuate by ±10% the rated

voltage.

Note: In models arranged for operation with remote units, make
the
electrical connection to the condensing unit and solenoid valve
as shown in the wiring diagram attached to the appliance.
The connection must be made with cable of adequate
section.

If the power cable is damaged, it must be replaced by the

after-salesserviceorinanycasebyqualiedpersonnel,in

order prevent any risk.

The manufacturer declines any liability for damage or injury
resulting from breach of the above rules or non-compliance
with the electrical safety regulations in force in the country
where the machine is used.

B.2.9 ELECTRICAL CONNECTION (ONLY FOR APPLIANC­ES WITH CABLE WITHOUT PLUG)

Connection to the power supply must be carried out in compli­ance with the regulations and provisions in force in the country
of use.

ATTENTION!
Work on the electrical systems must only be car-

riedoutbyaqualiedelectrician.

The information regarding the appliance power supply voltage
is given on the dataplate.
Before connecting, make sure:



the connection point has an efcient earth contact and the mains

voltage and frequency match that given on the data plate. In

case of doubts regarding the efciency of the earth wire, have
the system checked by qualied personnel;



the system power supply is arranged and able to take the actual
current absorption and that it is correctly executed according
to the regulations in force in the country of use;



the appliance must be permanently connected to the power
supply, respecting the polarities:

- brown: phase

- yellow/green: earth

- blue: neutral;



a differential thermal-magnetic switch (or plug) suitable for the

absorption specied on the data plate, with contact gap enabling

complete disconnection in category III overvoltage conditions
and complying with the regulations in force, is installed between
the power cable and the electric line. For the correct sizing of

the switch or plug, refer to the absorbed current specied on

the appliance data plate. The chosen device must be lockable
in the open position in case of maintenance.

ATTENTION: When using a plug, it must comply with the

national installation rules. The plug must also be:



accessible after the appliance has been positioned
in the place of installation;



in a position always visible to the operator perform­ing the intervention during maintenance operations.



After making the connection, with the appliance running check

that the power supply does not uctuate by ±10% the rated

voltage.

ATTENTION!
An H05VV-F power cable (designation 60227 IEC

53) is used for the permanent connection to the
power supply; when replacing it, use a type having
at least these characteristics.

ATTENTION!
When replacing the cable, the earth wire must be
kept longer than the live and neutral wires.

If the power cable is damaged, it must be replaced by the

servicecentreorinanycasebyqualiedpersonnel,in

order prevent any risk.

The manufacturer declines any liability for damage or
injury resulting from breach of the above rules or non­compliance with the electrical safety regulations in force
in the country where the machine is used.

ATTENTION: THE DOORS ARE NOT REVERSIBLE.

C.1 CONTROL PANEL

C.1.1 CONTROL PANEL
(see Fig.1)
C.1.2 DIGITAL THERMOSTAT DISPLAY

The digital thermostat has a 3-digit electronic display for showing
the temperature measured by the probe, and six ICONS (see

g.1 and par. C.1.5).

C.1.3 BUTTONS
The digital thermostat has 4 buttons for control and programming
the instrument.

- Multifunction “ON/OFF” and “UP” button for switching
the appliance on or off and increasing the values.

- “DOWN” and “DEFROST” button for activating manual
defrost and decreasing the values.

- “Prg/mute” button for silencing the alarm buzzer.

- “SET” button for accessing the Set point.

C.1.4 SWITCHING ON AND TEMPERATURE ADJUSTMENT

When switched on, the instrument performs a Lamp Test, i.e.

for a few seconds the display and Icons ash, verifying its

correct functioning. If the instrument displays the compartment
temperature when switched on, the appliance is already on; if

“OFF” is displayed, press the “ON/OFF” button for a few
seconds to activate the appliance; the display shows the message
“ON” and then the compartment temperature.

To switch the appliance off, press the “ON/OFF” button
for a few seconds ; the message “OFF” appears on the display.

To SET the compartment temperature, proceed as follows:

- Press the button for a few seconds and theSET POINT

value appears on the display.

- To change the SET value, press the “UP” increase value button

or the “DOWN” decrease value button .

If no button is pressed for 60 seconds (“TIME OUT”), or by
pressing the “SET” button once, the digital thermostat memorises
the last set value and the normal display is restored.

The temperature range is set from a
minimum to a maximum, according to the following values:

34

Maximum pos. = - 2 °C
Minimum pos. = + 10 °C

Maximum pos. = - 15°C
Minimum pos. = - 20°C

C.1.5 DIGITAL THERMOSTAT ICONS

The digital thermostat has 5 signalling ICONS:

- Icon lit up indicates compressor activation.

- Icon lit up indicates manual defrost in progress.

- Icon lit up indicates activation of compartment fans (if

present).

- Icon “aux” lit up indicates activation of auxiliary users (if
present).

- Icon indicates that a temperature alarm has occurred
during appliance operation.

- Icon indicates that a service alarm has occurred during
appliance operation.

C.1.6 ALARMS AND SIGNALLING
C.1.6.1 Service alarms and signalling for models
0°C/+10°C

The alarm is signalled by lighting up of the Icon alarm
signalling is also indicated by the alarm code appearing on the
display.
Example: Alarm signalling due to a faulty probe (compartment
probe) appears directly on the instrument display with the
message “E0” and “rE” ashing alternately (refer to position 1
of the alarms table).
When the alarm condition ceases, the alarm goes off. Otherwise,
contact the After-Sales Service.

C.1.6.2 Signalling alarms for models -15°C/-22°C and

-2°C/+10°C

The alarm is signalled by lighting up of the Icon alarm
signalling is also indicated by the alarm code appearing on the
display.
Example: Alarm signalling due to a faulty probe (compartment
probe) appears directly on the instrument display with the
message “E0” and “rE” ashing alternately (refer to position 1
of the alarms table).
Alarm signalling due to a faulty evaporator probe (evaporator
probe) appears directly on the instrument display with the indication

“E1” ashing (refer to position 2 of the alarms table).

C.1.6.3 Temperature alarms and signalling (common to all
appliances)

The alarm is signalled by lighting up of the Icon alarm
signalling is also indicated by the alarm code appearing on the
display.
Temperature alarm signalling, regarding the thermostatting probe,
appears directly on the instrument display with the indication “HI”
(max. temperature alarm) and “LO” (min. temperature alarm).

C.1.7DEFROST(g.1)

- Automatic defrost

The appliance has an automatic defrost function.
This function is signalled by lighting up of the DEFROST icon

.

Thedefrost water is run into a tray and automatically evaporated.

- Manual defrost activation

Keep the “DOWN” button pressed for at least 5 seconds
to start a manual defrost cycle.
This function is signalled by lighting up of the DEFROST icon

.
If defrost conditions do not exist, the display shows the message
“dFb”, indicating that the operation will not be carried out (only

for models -15°C/-22°C and -2°C/+10°C).

Defrost can be stopped manually by pressing the “DOWN” button

for a few seconds the display shows the message “dFE”.
Defrost cannot be activated in the programming stage.

POSITION DISPLAY ALARM

1 E0/rE

Compartment probe fault

alarm

2 E1 Evaporator probe fault alarm

3 HI

Compartment high
temperature alarm

4 LO

Compartment low temperature

alarm

C.1.8 LOADING THE PRODUCT

Distribute the product evenly inside the compartment (away from
the door, back and side walls) in order to ensure good air circulation.
Co ver or wr ap food bef ore pla cing it in the re frige rat or and av­oid pu tti ng ve ry hot fo ods or ste am ing liq uids inside. Do not
leave the door open any longer than necessary when loading
or removing food.
Keep the keys out of reach of children.

Regarding the max. load for each shelf, respect that given in the
table below:

MAX. LOAD FOR PAN

HORIZONTAL

REFRIGERATORS WITH

DIGITAL CONTROL

40 Kg

C.3 GENERAL SAFETY RULES

C.3.1 INTRODUCTION

The machines are provided with electric and/or mechanical safety
devices for protecting workers and the machine itself. Therefore
the user must not remove or tamper with such devices.
The Manufacturer declines any liability for damage due to
tampering or their non-use.

C.3.2 PROTECTION DEVICES INSTALLED ON THE MACHINE
C.3.2.1 Guards

The guards on the machine are:

- xed guards (e.g. casings, covers, side panels, etc.), xed

to the machine and/or frame with screws or quick-release
connectors that can only be removed or opened with tools;

- interlocked movable guards (front panels) for access inside

the machine;

- machine electrical equipment access doors, made from

hinged panels openable with tools. The door must not be
opened when the machine is connected to the power supply.

ATTENTION!

Several illustrations in the manual show the ma-

chine, or parts of it, without guards or with guards
removed. This is purely for explanatory purposes.
Do not use the machine without the guards or with
the protection devices deactivated.

35

C.3.3 SAFETY SIGNS TO BE PLACED ON THE MACHINE OR
NEAR ITS AREA

PROHIBITION

Do not remove the safety
devices.

Do not use water
to extinguish fires (shown on
electrical parts).

DANGER OF BURNS.

DANGER OF ELECTROCUTION
(shown on electrical parts with
indication of voltage).

DANGER MEANING

MEANING

ATTENTION!

Do not remove, tamper with or make illegible the

safety, danger and instruction signs and labels
on the machine.

C.3.4 END OF USE

When the appliance is no longer to be used, make it unusable
by removing the power supply wiring.

C.3.5 INSTRUCTIONS FOR USE AND MAINTENANCE

Risks mainly of a mechanical, thermal and electrical nature are
present in the machine.
Where possible the risks have been neutralised:

• directly, by means of adequate design solutions,

• indirectly by using guards, protection and safety devices.
Any anomalous situations are signalled on the control panel
display.
During maintenance several risks remain, as these could not

be eliminated, and must be neutralised by adopting specic

measures and precautions.
Do not carry out any checking, cleaning, repair or maintenance
operations on moving parts.
Workers must be informed of the prohibition by means of clearly

visible signs. To guarantee machine efciency and correct

operation, periodical maintenance must be carried out according
to the instructions given in this manual. In particular, make sure
to periodically check correct operation of all the safety devices
and the insulation of electrical cables, which must be replaced
if damaged.

ATTENTION!

Machine maintenance operations must only be

carried out by specialised Technicians provided
with all the appropriate personal protection equip­ment (safety shoes, gloves, glasses, overalls,
etc.), tools, utensils and ancillary means.

ATTENTION!

Never operate the machine, removing, modifying

or tampering with the guards, protection or safety
devices.

ATTENTION!

Before carrying out any operation on the machine,

always consult the manual which gives the correct
procedures and contains important information
on safety.

C.3.6 REASONABLY FORESEEABLE IMPROPER USE

Improper use is any use different from that specied in this

manual. During machine operation, other types of work or
activities deemed improper and that in general can involve risks
for the safety of operators and damage to the appliance are not
allowed.

Reasonably foreseeable improper use includes:

• lack of machine maintenance, cleaning and periodical checks;

• structural changes or modications to the operating logic;

• tampering with the guards or safety devices;

• failure to use personal protection equipment by operators,

specialised technicians and maintenance personnel;

• failure to use suitable accessories (e.g. use of unsuitable

equipment or ladders);

• keeping combustible or ammable materials, or in any case

materials not compatible with or pertinent to the work, near
the machine;

• wrong machine installation;

• placing in the machine any objects or things not compatible

with refrigeration, freezing or preservation, or that can dam­age the machine, cause injury or pollute the environment;

• climbing on the machine;

• non-compliance with the requirements for correct machine

use;

• other actions that give rise to risks not eliminable by the

Manufacturer.

ATTENTION!

The previously described actions are prohibited!

C.3.7 RESIDUAL RISKS

The machine has several risks that were not completely
eliminated from a design standpoint or with the installation of
adequate protection devices.
Nevertheless, through this manual the Manufacturer has taken
steps to inform operators of such risks, carefully indicating the
personal protection equipment to be used by them.

Sufcient spaces are provided for during the machine installation

stages in order to limit these risks.
To preserve these conditions, the areas around the machine
must always be:

• kept free of obstacles (e.g. ladders, tools, containers, boxes,

etc.);

• clean and dry;

• well lit.
For the Customer’s complete information, the residual risks
remaining on the machine are indicated below: such actions are
to be considered incorrect and therefore strictly forbidden.

RESIDUAL RISK

DESCRIPTION OF HAZARDOUS

SITUATION

Slipping or falling

The operator can slip due to water or dirt on

the oor.

Burns/abrasions

(e.g. heating

elements, cold

tray, cooling

circuit plates and

pipes)

The operator deliberately or unintentionally

touches some components inside the

machine without using protective gloves.

Electrocution

Contact with live parts during maintenance

operations carried out with the electrical

panel powered.

Falling from

above

The operator works on the machine using

unsuitable systems to access the upper part

(e.g. rung ladders, or climbs on it).

Crushing or injury

The specialised Technician may not

correctly x the control panel when

accessing the technical compartment. The

panel could close suddenly.

Tipping of loads

When handling the machine or the packing

containing it, using unsuitable lifting systems

or accessories or with the load unbalanced.

Chemical

(refrigerant gas)

Inhalation of refrigerant gas. Therefore

always refer to the appliance labels.

36

C.4 NORMAL MACHINE USE

C.4.1 CHARACTERISTICS OF PERSONNEL TRAINED FOR
NORMAL MACHINE USE

The Customer must make sure the personnel for normal machine
use are adequately trained and skilled in their duties, as well as
ensuring their own safety and that of other persons.
The Customer must make sure his personnel have understood
the instructions received and in particular those regarding work
hygiene and safety in use of the machine.

C.4.2 CHARACTERISTICS OF PERSONNEL ENABLED TO
OPERATE ON THE MACHINE

The Customer is responsible for ensuring that persons assigned
to the various duties:

• read and understand the manual;

• receive adequate training and instruction for their duties in
order to perform them safely;

• receive specic training for correct machine use.

C.4.3 OPERATOR FOR NORMAL MACHINE USE

He must have at least:

• knowledge of the technology and specic experience in

operating the machine;

• adequate general basic education and technical knowledge
for reading and understanding the contents of the manual;

• including correct interpretation of the drawings, signs and
pictograms;

• sufcient technical knowledge for safely performing his duties
as specied in the manual;

• knowledge of the regulations on work hygiene and safety.

In case of a signicant fault (e.g. short circuits, wires coming out

of the terminal block, motor breakdowns, worn electrical cable
sheathing, etc.) the operator for normal machine use must:

• immediately deactivate the machine.

D.1 MACHINE CLEANING AND
MAINTENANCE

ATTENTION!

Before carrying out any cleaning or maintenance

operation, disconnect the appliance from the
power supply and carefully unplug it.

Disconnect the appliance from the power supply at

least 30 minutes before carrying out any cleaning
or maintenance operation.

ATTENTION!

During maintenance, the cable and plug must be

kept in a visible position by the operator carrying
out the work.

ATTENTION!

Do not touch the appliance with wet hands or

feet or when barefoot. Do not remove the safety
guards.

ATTENTION!

Use suitable personal protection equipment (pro-

tective gloves).

D.1.1 ROUTINE MAINTENANCE

ATTENTION!

Disconnect the power supply before cleaning the

appliance.

D.1.1.1 Precautions for maintenance

Routine maintenance operations can be carried out by non­specialised personnel, carefully following the instructions
given below. The manufacturer declines any liability for

operations carried out on the machine without following
these instructions.

D.1.1.2 Cleaning the cabinet and accessories

Be fo re us ing the appli ance, cl e an all the in si de pa rts an d ac ces­sor ies wi th lukewa rm wa ter an d ne ut ral so ap or pr odu cts th at
are over 90% bio degra dable (in order to reduce the emission of
pollutants into the envi ronment), then rinse and dry thoroughly.
Do not use so lvent-based deter gents (e.g. tri chl oro-ethylene) or
abrasive powders for cleaning.
It is advisable to go over the stainless steel surfaces with a rag

moistened with parafn oil in order to create a protective lm.

Check the power cable regularly and replace it in case of signs
of wear.
Have the appliance checked periodically (at least once a year).

ATTENTION!

Do not clean the machine with jets of water.

ATTENTION!

Do not use steel wool or similar material to clean

stainless steel surfaces. Do not use detergents
containing chlorine, solvent-based detergents
(e.g. trichloro-ethylene) or abrasive powders.

D.1.1.3 Compartment cleaning

To clean the com partment, remove all the racks, remove the

screws xing the wire structures, clean the compartment with

products that are over 90% bio deg rable, th en rin se and dry tho­ro ug hly .

ATTENTION: These appliances do not have a water drain hole.
For refrigerated models: periodically clean the defrost water
drain hole (located on the back of the compartment) by
means of the “swab” provided, it order to clear the hole if

clogged(seegurebelow)

ATTENTION! After cleaning, do not leave the “swab” in the
drain hole.

NOTE: This operation cannot be carried out on freezer
models.

D.1.1.4 Precautions in case of long idle periods

If the ap pli an ce is not go ing to be us ed for so me ti me, ta ke the
fo ll ow ing precautions:

• unplug it ;

• remove all food from the compartment and clean the inside
and accessories;

• le ave the do or aj ar so th at a ir can ci rc ul ate in si de, pr even ti ng
th e fo rm at ion of un pl ea sant odours;

• a ir th e premises p e ri od ic al ly.

ATTENTION!

Machine maintenance, checking and overhaul op-

erations must only be carried out by a specialised
Technician or the After-Sales Service, provided
with adequate personal protection equipment
(safety shoes and gloves), tools and ancillary
means.

ATTENTION!

Work on the electrical equipment must only be

carried out by a specialised electrician or the
After-Sales Service.

37

ATTENTION!

Put the machine in safe conditions before starting

any maintenance operation.

After carrying out maintenance make sure the machine is able
to work safely and, in particular, that the protection and safety

devices are efcient.

ATTENTION!

Respect the requirements for the various routine

and extraordinary maintenance operations.

Non-compliance with the instructions can create

risks for personnel.

D.1.2 EXTRAORDINARY MAINTENANCE

ATTENTION!

WEAR PROTECTIVE GLOVES AND A MASK WHEN

CARRYING OUT ANY EXTRAORDINARY MAINTE­NANCE OPERATIONS.

Extraordinary maintenance must be carried out by
specialised personnel, who can ask the manufacturer to
supply a servicing manual.

D.1.2.1 Periodical condenser cleaning

For the appliance to work efciently, the refrigeration unit
condenser lter, located under the control panel, must be cleaned

at least once every 3 months.
If the appliance is installed in a dusty or poorly ventilated place,

the condenser lter must be cleaned more frequently, about

once a month.
Note: It is advisable to use a brush or vacuum cleaner to remove

the dirt accumulated on the lter.

ATTENTION!

Do not clean the appliance with jets of water.

D.1.2.2 Replacing the power cable

To replace the power cable, proceed as follows:

• Disconnect the power supply;

• Remove the electrical system guard;

• Replace the power cable;

• Ret the guard;

• Reconnect the power supply.

D.1.2.3 Quick troubleshooting guide

In some cases, faults can be eliminated easily and quickly; The
following is a list of possible problems with their solutions:

A. The appliance does not switch on:

- make sure the plug is properly inserted in power socket.

- make sure the socket is powered.

B. The inside temperature is too high:

- check the thermostat setting;

- make sure there is no heat source near the appliance;

- make sure the door closes properly.

C. The appliance is too noisy:

- make sure the appliance is properly levelled.An
unbalanced position can set off vibrations.

- make sure the appliance is not touching other appliances
or parts which could reverberate.

D. Water in the compartment:

- make sure the drain is clean. If necessary, clean it by
following the instructions given in par. D.1.1.3.

If the fault persists after carrying out the above checks, contact
the After-Sales Service, remembering to give the following details:

• the type of fault;

• the appliance PNC (production number code);

• the Ser. No. (appliance serial number).

Note: The code and serial number are essential for
identifying the type of appliance and date of manufacture:

appliance identication code

fourth digit of the year

of production (2015)

third digit of the year
of production (2015)

week

50

10th piece

produced
in the week

Ser. No. 5 50 1 0010

PNC

728304 23

D.1.3 MAINTENANCE INTERVALS

The inspection and maintenance intervals depend on the actual
machine operation conditions and ambient conditions (presence
of dust, damp, etc.), therefore precise time intervals cannot be
given. In any case, to minimise interruptions of the service, careful
and periodical machine maintenance is advisable.

It is advisable to stipulate a preventive and scheduled
maintenance contract with the after-sales service.

D.1.3.1 Maintenance frequency

In order to guarantee constant machine efciency, it is advisable to

carry out the checks with the frequency given in the following table:

MAINTENANCE, INSPECTIONS, CHECKS

AND CLEANING

FREQUENCY

Routine cleaning

Daily

General cleaning of machine and surrounding

area

Mechanical protection devices

Monthly

Check condition, and for any deformation,

loosening or removed parts.

Control

Yearly

Check mechanical part, for any breakage

or deformation, tightening of screws. Check

readability and condition of words, stickers and

symbols and restore if necessary.

Machine structure

Yearly

Tightening of main bolts (screws, xing

systems, etc.) of machine.

Safety signs

Annuale

Check readability and condition of safety signs.

Electrical control panel

Yearly

Check electrical components installed inside

the Electrical Control Panel. Check wiring

between the Electrical Panel and machine

parts.

Electrical connection cable and plug

Yearly

Check connection cable (replace it if

necessary) and plug.

Extraordinary machine maintenance

Every 10

years (*)

Check all components, electrical equipment,

corrosion, pipes, ……

(*) the machine is designed and built for a duration of about 10

years. After this period of time (from machine commissioning)
the machine must undergo a general inspection and overhaul.
Some examples of checks to be carried out are given below.

- check for any oxidised electrical components or parts; if
necessary, replace them and restore the initial conditions;

- check the structure and welded joints in particular;

- check and replace bolts and/or screws, also checking for any
loose components;

- check the electrical and electronic system;

- check the functionality of safety devices;

- check the general condition of protection devices and guards.

38

ATTENTION!

Machine maintenance, checking and overhaul op-

erations must only be carried out by a specialised
Technician or the After-Sales Service, provided
with adequate personal protection equipment
(safety shoes and gloves), tools and ancillary
means.

ATTENTION!

Work on the electrical equipment must only be

carried out by a specialised electrician or the
After-Sales Service.

D.1.4 DISASSEMBLY

If the appliance has to be disassembled and then reassembled,
make sure the various parts are assembled in the correct order
(if necessary mark them during disassembly).
Before disassembling the machine, make sure to carefully check
its physical condition, and in particular any parts of the structure
that can give or break. Before starting disassembly:

- remove all the pieces (if present) in the machine;

- disconnect the power supply;

- enclose the work area;

- place a sign on the Main Electrical Panel indicating that the
machine is undergoing maintenance and not to carry out
manoeuvres;

- carry out the disassembly operations.

ATTENTION!

All scrapping operations must occur with the ma-

chine stopped and cold and the electrical power
supply disconnected.

ATTENTION!

Work on the electrical equipment must only be car-

riedoutbyaqualiedelectrician,withthepower

supply disconnected.

ATTENTION!

To carry out these operations, appropriate PPE

must be used.

ATTENTION!

During disassembly and handling of the various

parts,theminimumheightfromtheoormustbe

maintained.

D.1.5 DECOMMISSIONING

If the machine cannot be repaired, carry out the decommissioning
operations, signalling the failure with a suitable sign, and request
assistance of the manufacturer’s after-sales service.

D.2 MACHINE DISPOSAL

ATTENTION!

DISMANTLING OPERATIONS MUST BE CARRIED

OUT BY QUALIFIED PERSONNEL.

ATTENTION!

WORK ON THE ELECTRICAL EQUIPMENT MUST

ONLY BE CARRIED OUT BY A QUALIFIED ELEC­TRICIAN, WITH THE POWER SUPPLY DISCON­NECTED.

D.2.1 WASTE STORAGE

At the end of the product’s life-cycle, make sure it is not dispersed
in the environment. The doors must be removed before scrapping
the appliance.
Special waste materials can be stored temporarily while awaiting
treatment for disposal and/or permanent storage. In any case,
the current environmental protection laws in the country of use
must be observed.

D.2.2 PROCEDURE REGARDING APPLIANCE DISMANTLING
MACRO OPERATIONS

Before disposing of the machine, make sure to carefully check
its physical condition, and in particular any parts of the structure
that can give or break during scrapping. The machine’s parts
must be disposed of in a differentiated way, according to their
different characteristics (e.g. metals, oils, greases, plastic, rubber,
etc.). Different regulations are in force in the various countries,
therefore comply with the provisions of the laws and competent
bodies in the country where scrapping takes place.
In general, the appliance must be taken to a specialised
collection/scrapping centre. Dismantle the appliance, grouping
the components according to their chemical characteristics,
remembering that the compressor contains lubricant oil and

refrigerant uid which can be recycled, and that the refrigerator

components are special waste assimilable with urban waste.

The symbol placed on the product indicates that it should
not be considered as domestic waste, but must be correctly
disposed of in order to prevent any negative consequences for
the environment and the health of people.
For further information on the recycling of this product, contact
the local dealer or agent, the after-sales assistance service or
the local body responsible for waste disposal.

ATTENTION!

Make the appliance unusable by removing the pow-

er cable and any compartment closing devices,
to prevent the possibility of someone becoming
trapped inside.

ATTENTION!

When scrapping the machine, the “CE” marking,

this manual and other documents concerning the
machine must be destroyed.

D.3 ENCLOSED DOCUMENTS

• Set of test and inspection documents

• Wiring diagram

• Installation diagram