CLIVET EVH Space 21, EVH Space 25, EVH Space 41, EVH Space 51, EVH Space 31 Installation And Maintenance Manual

EVH SPACE 21-101

Reversible heat pump water cooled horizontal indoor installation ductable

INSTALLATION AND MAINTENANCE MANUAL

M27B40A6-05(EC1)

30-10-13

Dear Customer,
We congratulate you on choosing an ELFOSystem product, the air conditio-

ning system at annual cycle that offers the possibility in a sole system of
meeting all the heating, conditioning and domestic hot water needs.

Clivet is being working for years to offer systems able to assure the maxi­mum comfort for long time with high reliability, efficiency , quality and
safety. The target of the company is to offer advanced systems, that assure
the best comfort, reduce the energy consumption, the installation and main­tenance costs for all the life-cycle of the system.

With this manual, we want to give you information that are useful in all the
phases: from the reception, to the installation and use until the disposal so
that a system so advanced offers the best procedure of installation and use.

Best regards and have a nice reading !

CLIVET Spa

The data contained in this manual is not binding and may be changed by the manufacturer without prior notice.
All reproduction, even partial, is prohibited.

2

INDEX

General

1

Riception

2

Positioning

3

Water connections

4

5

Aeraulic connections

6

Electrical connections

7

Start-up

8

Control

9

Maintenance

4

6

7

9

11

12

5

18

21

10

Residual risks

Decommissioning

11

12

Technical information

24

25

26

3

1 - GENERAL

1.1 MANUAL

The manual provides correct unit installation, use and
maintenance.

Fare particolare attenzione ad :
WARNING indicate particularly important operations or

information.
PROHIBITED indicate operations that must not be carried out,

that compromise the operating of the equipment or may cause
damage to persons or things.

• It is advisable to read it carefully so you will save time

during operations.

• Follow the written indications so you will not cause

damages to things and injuries people. The preliminary
information must be read prior to carrying out any of the
following operations.

1.2 GENERAL INSTRUCTIONS
Preliminaries

The positioning, hydraulic system, refrigerating, electrics and
the channelization of the air must be determined by the
system designer in accordance with the local regulations.

Only qualified personnel can operate on the unit, as required
by the regulation in force.

Using the unit in case of breakdown or malfunction

• voids the warranty

• may compromise the safety of the machine

• may increase time and repair costs.

Follow local safety regulations.
Keep packing material out of children’s reach it may be
dangerous.
Recycle and dispose of packing material in conformity with
local regulations.

Risk situations

The unit has been designed and created to prevent injures to
people.
During designing it is not possible to plane and operate on all
risk situation.
Read carefully "Residual risk" section where all situation
which may cause damages to things and injuries to people
are reported.
Installation, starting, maintenance and repair required specific
knowledge; if they are carried out by inexperienced personnel,
they may cause damages to things and injuries people.

Intended use

Use the unit for the:

- air treatment.

Follow the limits defined in the technical bulletin and on this
manual.

Not treat air containing :

• high concentration of dust;

• aggressive substances ;

• residual of industrial processes.

Any use other than intended does not involve the
manufacturer in any commitment or obligation.

Installation

Verify that the electrical line characteristics are in compliance
with data quotes on the unit serial number label.

Maintenance

Plan periodic inspection and maintenance in order to avoid or
reduce repairing costs.

Turn the machine off before any operation.

Modification

All unit modifications will end the warranty coverage and the
manufacturer responsibility.

Breakdown/Malfunction

Disable the unit immediately in case of breakdown or
malfunction.
Contact a constructor certified assistance service
Use original spares parts only. .

User training

The installer has to train the user on :

• start-up / shutdown;

• set points change;

• standby mode;

• Maintenance;

• what to do / what not to do in case of breakdown.

Data update

Continual product improvements may imply manual data
changes

Visit manufacturer web site for updated data.

1.3 INDICATIONS FOR THE USER

Keep this manual with the wiring diagram in an accessible
place for the operator.

Note the unit label data so you can provide them at the
assistance centre in case of intervention (see "Unit
identification" section)

Provide a machine notebook that allows any interventions
carried out on the machine to be noted and tracked making it
easier to suitably note the various interventions and aids the
search for any breakdowns.

• In case of breakdown or malfunction:

• immediately deactivate the unit.

• Contact a constructor certified assistance service.

• Use original spares parts only.

Ask the installer to format on:

• start-up / shutdown

• set points change

• standby mode

• maintenance

• what to do / what not to do in case of breakdown

4

1 - GENERAL

1.4 UNIT IDENTIFICATION
Serial number label

The serial number label is positioned on the unit and allows to
indentify all the unit features.

It has not to be removed for any reason.
It reports the regulations indications such as:

• Machine type

series → EVH-SPACE

• Size → 21 ....101

• Serial number

xxxxxxxxxxxx

• Year of manufacture

• Wiring diagram number

• Electrical data

• Manufacturer logo and address

Serial number

It identifies uniquely each machine.
It identifies specific spare parts for the machine

Assistance requests

Note data from the serial number label and write them in the
chart on side, so you will find them easily when needed.

In case of intervention you have to provide data

Serie

Size

Serial number

Year of manufacture

Wiring diagram

5

2 - RECEPTION

2.1 INFORMAZIONI PRELIMINARI
Generali

Operare rispettando le normative di sicurezza in vigore.
Per le informazioni di dettaglio (dimensioni, pesi,

caratteristiche tecniche, etc) far riferimento al capitolo
INFORMAZIONI TECNICHE.

Per effettuare le operazioni usare dispositivi di
protezione: guanti , occhiali ecc.

Stoccaggio
Rispettare le indicazioni riportate sull’esterno

dell’imballo.
Movimentazione

Verificare peso dell’unità e capacità del mezzo di
sollevamento.

Individuare i punti critici nel percorso di
movimentazione : percorsi sconnessi, rampe, scalini,
porte.

Considerare che il baricentro potrebbe essere spostato
rispetto al centro dell'unità .

Assicurarsi che l’unità sia in equilibrio stabile.
Rimozione imballo

Fare attenzione a non danneggiare l’unità.
Riciclare e smaltire il materiale di imballaggio secondo

le norme locali.

A

2.3 MOVIMENTAZIONE CON IMBALLO

Sollevamento con forche:

• Inserire le forche come indicato in figura.

• È vietato sollevare più colli contemporaneamente

lasciandoli sciolti.

• In caso di sollevamento di più unità contempora-

neamente deve essere utilizzato un contenitore
idoneo.

2.2 CONTROLLO ALL’ARRIVO

Prima di accettare la consegna controllare:

• Che l’unità non abbia subito danni nel trasporto

• Che il materiale consegnato corrisponda a quanto

indicato sul documento di trasporto confrontando i
dati con l’etichetta matricolare ‘A’ posizionata
sull’imballo.

In caso di danni o anomalie :

• annotare immediatamente sul documento di tra-

sporto il danno riscontrato e riportare la dicitura:
“Ritiro con riserva per evidenti ammanchi/danni da
trasporto”.

• contestare via fax e con raccomandata A.R. al vet-

tore e al fornitore.

Le contestazioni devono essere effettuate entro 8 gior­ni dal ricevimento, le segnalazioni oltre tale termine
non sono valide.

30°

2.4 RIMOZIONE IMBALLO

• Tagliare le reggette di fissaggio.

• Rimuovere l’imballo sollevandolo verso l’alto.

• Rimuovere il nylon di protezione.

6

3 - POSITIONING

3.1 PRELIMINARY INFORMATION

Operate in compliance with safety regulations in force .
For detailed information (dimensions, weight, technical

characteristics etc.) please refer to the “Technical information”
section.

Use single protection devices : gloves, glasses ecc. .
During positioning consider these elements :

• technical spaces required for the machine and system

• place where the machine will be installed

• electrical connections

• water connections

• air / aeraulic ducts

Do not considerer these elements could decrease
performances and operational life of the unit.

3.2 POSITIONING

Unit has been designed to be installed:

• inside

• in fixed positions

Limit vibration transmission:

• use antivibration devices on unit bearing/supporting points;

• install flexible joints on the hydraulic/ aeraulic/cooling

connections.

• plan in the false ceiling the openings indicated in the

functional clearances to allow the access to the unit for
the maintenance operations

• Ceiling positioning : let free the projection to the ground

of the unit and of the functional clearances to allow the
access with ladders or other means

Installation standards:

• Safe accessible position;

• avoid flood-prone places;

• verify unit weight and bearing point capacity;

The functional clearances have to :

• guarantee the unit good operating

• allow the maintenance operations

• safeguard the authorized operators and the exposed

person.

• position the unit taking into consideration the clearances

indicated in the figure.

300

300

500

A

EVH SPACE A

21-71 550

81-101 620

7

3 - POSITIONING

Hanging

(1) Tapped bar M10 (M12 for sizes 81-91-101)
(2) galvanized steel nuts
(3) galvanized steel plain washer Ø external 30mm
(4) rubber plain washer Ø external 30mm thickness 6mm
(5) Anti-vibration rubber or spring
(6) galvanized steel plain washer Ø external 40mm

3.3 THERMOSTAT POSITIONING (OPTIONAL)

The choice of the installation point is important for the
comfort of the served area and the energy consumptions.
The thermostat must be positioned:

• in a room with medium temperature and humidity

conditions, representative of the other rooms;

• at a height of 150 cm;

• preferably on an inner wall;

Positions to avoid:

• near heat sources;

• exposed to direct solar radiation;

• in a position with exhaust air from outlets or diffusers;

• behind curtains or pieces of furniture;

• - near doors and windows to the outside;

• - on walls crossed by heating chimneys or pipes;

• - on external walls.

in support

8

4 - WATER CONNECTIONS

4.1 PRELIMINARY INFORMATION

Selection and installation of system components must be

i

carry out by installer.
Following a series of instructions that must be integrated with
what required by local regulations and by the code of practise.

4.2 COMPONENTS

INTERCEPTING VALVES

• Installed on the input and output, they allow to carry out all

the maintenance operations and possible without emptying
the installation.

THERMOMETERS AND PRESSURE GAUGES:

• Installed on the input and output of the main parts facilitate

the controls and the maintenance.

BLEED VALVES :

• Installed in all the highest points of the system, they allow

the venting from the circuit.

BLEEDING COCKS :

• Installed at the lowest points of the circuit, so as to allow

emptying .

EXPANSION TANK :

• It allows the system correct pressure to be maintained at

the water temperature changing. It has to be sized
according to the system water content.

WATER FILTER :

• If it is not built-in, it has to be immediately installed at the

i

unit water inlet, in a position easily accessible for cleaning.

• The filter should never be removed, the operation will void

the warranty.

SUPPORTS :

• for the weight of the water piping that must not rest on the

unit fittings.

FLOW SWITCH

• as a component of the system must always be provided.

4.4 CONDENSE DRAIN

The condense must be disposed of in order to avoid
damaging things and persons.

• Unit drain coupling: the connection must not transmit

mechanical stresses and must be carried out paying
attention not to damage the unit drain coupling.

• Foresee a siphon that, by eliminating the depression

caused by the fan, prevents suction of air from the drain
piping.

• The piping must have adequate slope to allow out flow.

• Anchor the piping with an adequate number of supports.

• On the contrary, cracking in the piping and air pockets

obstructing the outflow, are generated.

• Isolate piping and siphon to avoid condense dripping.

• Connect the condense drain to a rain drain network.

• DO NOT use white waters or sewage drains to avoid

possible inhaling of odours in case of evaporation of the
water contained in the si phon.

• At work end, check the regular outflow of the condense by

i

pouring water in the bowl.

Siphon height calculation
T = 2P
S = T/2
P is the pressure determined by the fan in correspondence of
the condense collection bowl (approx. 1 mm = 9.81 Pa)

Example :

P = 300 Pa = 30 mm
T = 2P = 60 mm
S = T/2 = 30 mm

4.5 RISK OF FREEZING

4.3 OPERATION SEQUENCE

Before connecting the unit, carefully wash the system by filling
it and emptying it several times with clean water.

Ignoring this operation will lead to several filter cleaning
interventions and at worst cases can cause damages to the
exchangers and the other parts.

Execute leakage test before isolate the pipes.
To avoid heat dispersions and formation of condensate isolate

all the pipes.
Leave various point of service free (wells, vent-holes etc )

Adopt measures to prevent risk of freezing if the unit or

!

relative hydraulic connections can be subject to temperatures

near 0°C.

• isolate the piping

• protect the piping with heating cables laid underneath

the insulation

9

4 - WATER CONNECTIONS

WATER LOOP WITH CONSTANT WATER FLOW

WATER LOOP WITH VARIABLE WATER FLOW

(1) antifreeze protection
(2) differential pressure switch, water side
(3) Steel mesh filter on the water side (optional)
(4) shut-off valve on the system water connections

(optional)
(5) by-pass cleaning valve (optional)
The dotted line indicates the supply limit of the stan-

dard unit (field A)

(1) antifreeze protection
(2) differential pressure switch, water side
(3) Steel mesh filter on the water side (optional)
(4) shut-off valve on the system water connections

(optional)
(5) by-pass cleaning valve (optional)
(6) ON/OFF solenoid valve water side (optional)
The dotted line indicates the supply limit of the stan-

dard unit (field A)

WATER SOURCE

(1) antifreeze protection
(2) differential pressure switch, water side
(3) Steel mesh filter on the water side (optional)
(4) shut-off valve on the system water connections

(optional)
(5) by-pass cleaning valve (optional)
(6) Water side modulating valve (optional)
The dotted line indicates the supply limit of the stan-

dard unit (field A)

10

5 - AERAULIC CONNECTIONS

5.1 GENERAL

Proper execution and sizing of air connections are essential
for ensuring correct operation of the unit and an acceptable
level of silence in the room.

When designing and creating ducts, consider PRESSURE
DROPS, FLOW RATE and AIR SPEED which need to be
compatible with the characteristics of the unit.

Special consideration needs to be made for pressure drops
that are greater than the unit's static pressure, which would
lead to a reduction in flow rate resulting in unit shutdown.

• the weight of the ducts must not be supported by the

connection flanges

• place anti-vibration joints between the ducts and the unit

• the connection to the flanges and between the various

sections of the ducts must ensure an airtight seal, preven­ting leakage in delivery and return which would compromi­se overall system efficiency.

• limit pressure drops by optimizing the path, the type and

number of curves and the branches

• use curves with a wide radius. Consider whether it might

be useful to equip them with deflectors (especially if the air
speed is high or if curves are tight )

5.2 FEATURES FOR DUCTS FOR TREATED AIR

• The inner surface of the duct must be smooth and washa-

ble. It must not contaminate the air.

• Thermally insulate the ducts and the flanges so as to pre-

vent loss of energy and condensation build-up.
GRILLES OUTLETS DIFFUSERS
Proper distribution of air in the room is essential for ensuring

comfort levels.
In the selection and positioning of grilles, outlets and diffusers,

the following are to be avoided:

• excessive air speed

• formation of stagnant zones and layering

• entry of cold air into the room

• formation of localized currents (due to uneven air

distribution)

• excessive variations in ambient temperature in the

vertical and horizontal planes

• short circuiting of delivery air towards return air

For purposes of comfort, the following things need to be consi­dered:

• air diffusers must be selected by checking the sound

power generated at nominal flow rate conditions

• the disconnections to the diffusers are to be made

using flexible elements

• the return grilles must be amply sized

APPLICATIONS AT HIGH DEGREE OF SILENCE
For applications that require a high degree of silence in the

system:

• In delivery and return, provide septum silencers, pre-

ferably inserted in sections of ducts located outside
the building.

• Equip all curves with deflectors.

11

6 - ELECTRICAL CONNECTIONS

6.1 PRELIMINARY INFORMATION

General

• The characteristics of the electrical lines must be

determined by specialized personnel able to design
electrical installations; moreover, the lines must be in
conformity with regulations in force.

• Please refer to the "Information" section for the detailed

characteristics of the apparatus (dimensioning,
performance, etc) .

• Operate in compliance with safety regulations in force .

• Use single protection devices : gloves, glasses ecc….

• The protection devices of the unit power line must be able

to stop the presumed short circuit current, whose value
must be determined in function of system features

• The power cables and the protection cable section must

be defined in accordance with the characteristics of the
protections adopted.

• The electrical data indicated in the technical bulletin and in

the manual refer to the standard unit, accessories
excluded.

The serial number label reports the unit specific electrical
data, included any electrical accessories.

Refer therefore to the electrical data indicated on the
serial number label.

Connections

• All electrical operations should be performed by trained

personnel having the necessary requirements by the
regulations in force and being informed about the risks
relevant to these activities.

• Refer to the unit electrical diagram (the number of the

diagram is shown on the serial number label).

• Verify that the network has characteristics conforming to

the data shown on the serial number label .

• Shelter the cables using adequate measure fairleads.

• Before starting work, verify that the sectioning device at

the start of the unit power line is open, blocked and
equipped with sign warning.

• First create the earthing connection.

• Prior to powering the unit ensure that all the protections

that were removed during the electrical connection work
have been restored.

Signal lines/data-lay

• Do not overpass the maximum power allowed, which

varies, according to the type of signal.

• Lay the cables far from power cables or cables having a

different tension and that are able to emit electromagnetic
disturbances.

• Do not lay the cable near devices which can generate

electromagnetic interferences.

• Do not lay the cables parallel to other cables; cable

crossings are possible, only if laid at 90°.

• Connect the screen to the ground, only if there aren’t

disturbances .

• Guarantee the continuity of the screen for the entire

extension of the cable.

• Respect impendency, capacity and attenuation indications.

6.2 POWER SUPPLY INPUT

Fix the cables: if vacated may be subject to tearing.

The cable don't have to touch the compressor and the
refrigerant piping ( they reach high temparatures ).

12

6 - ELECTRICAL CONNECTIONS

WITH A PERMISSIBLE TOLERANCE

Make sure that the sectioning device at the beginning of the unit’s power line is opened, locked and equipped with a signal.
Open the general line disconnecting switch (if present)
Verify that the net is in conformity with the data shown in the registration plate placed on the electrical board.
Check the dimensional drawing for the input of the electrical lines
Take away the closing plate placed on the electric board (ONLY IF PRESENT) and drill a hole through it to pass the cables

through.
Protect the cables, using the fairlead of an adequate size.
Using the layout of the electrical diagram, single out the connecting terminals of the electrical supply cables, of the neutral

(if foreseen) and the PE protection cable
Connect the cables to the relevant terminal boards
Before supplying power to the unit, make sure that all the safety devices that were removed during electrical connections are

positioned again.

FUNCTIONAL CONNECTIONS
FOR ALL CONNECTIONS REFER TO THE WIRING DIAGRAM ENCLOSED WITH THE UNIT

Use voltage-free remote control devices that are suitable to commutate very low loads (12V, 10mA).
Few inputs must be activated by configuration parame ters whose access is reserved to authorized assistance

centers (in order to avoid unauthorized modifications).

ON / OFF FROM REMOTE CONTROL
Generally the unit is delivered with bridged terminals; if the control is not used, the bridge should not be removed.

CHANGING FROM SUMMER TO WINTER USING THE REMOTE CONTROL
Only if the hot water coil or electric heaters are present.
This function is activated with the RemMode = 1 parameter.
Selection switch open – unit in heating mode, selection switch closed – unit in cooling mode, this way the keyboard or su­pervisor unit selection is deactivated.

SET ECO USING THE REMOTE CONTROL
This function is activated with the RemMode = 1 parameter.
In this way the keyboard or supervisor unit selection is deactivated.

VENTILATION ONLY USING THE REMOTE CONTROL
This function is activated with the RemMode = 1 parameter.
In this way the keyboard or supervisor unit selection is deactivated.

FIRE ALARM INLET
Generally the unit is delivered with bridged terminals; if the control is not used, the bridge should not be removed.

SIGNALIZATION OF MALFUNCTIONING/ UNIT FUNCTIONING
Remote signalization of the proper function (ex. green light) or signalization of blocks of the machine (ex. red light).
Maximum voltage at the terminal ends is 24v ac and maxi mum power is 5A (AC1).

REMOTE KEYPAD
Signal conductor signal: 2 + SHIELD
Min. section: 0.34 MM2
Max. length: 100 METRES
voltage: 230/1/50

HID-P1 ROOM THERMOSTAT
Conductor number: 3 + SHIELD
Min. section: 0.34 MM2
Max. length: 100 METRES

13

6 - ELECTRICAL CONNECTIONS

The complete system is made of the following modules.
Some are optional so they could not be present.
Some are supplied in packages separated by the unit: verify the shipping documents.

MAIN ADJUSTMENT MODULE

STANDARD ON THE UNIT - code C5110760
It controls unit (inlets, outlets, configuration parameters)

EXPANSION PLUG-IN MODULE

code C5110767 - OPTIONAL
Plugged-in on the main module.
It controls some inputs and outputs.

21.0

CN1

CN2

REMOTE

E

c

o

LN9192

SERIALE

TTL / RS485

ECO

AUTO

C

l

e

a

n

STANDARD ON THE UNIT

It enables the thermo-adjustment according to the temperature detected by the probe on the room
thermostat, instead of according to the temperature detected by the probe on the unit intake..

1

2

S

M

U

R

T

A

A

L

T

A

S

T
E
S

REMOTE KEYPAD
OPTIONAL - Code PE6B0017
It remotely repeats all functions available on the machine keyboard.

SERIAL CONVERTER TTL/RS485

12VAC

+-

gnd

1917 18 2120

gnd

16

13 14 15

+5V

81234567

1210911

The supervision services are available, with standard modbus protocol. Plugged-in in the main
module on the electric board (see lay in the wiring diagram). It is possible to connect up to 127
units with a single supervision system.

The connection with a PC must use a RS485/232 converter; the serial line RS232 can be max. 10­m long.

CONNECTIONS:
refer to the wiring diagram and to the SERIAL LINES/DATA paragraph
SPECIFICS FOR THE RS485 CONNECTION
cable with 2 twisted wires + screen
the serial line RS-485 can be max. 1000-m long.

Supervisore

12 V AC

-

TTL /

+

gnd

RS485

12 V AC

-

TTL /

+

gnd

RS485

CN1 CN1

1918 20 21 2018 19 21

ALLE ALTRE

UNITA’

RS-232

­+

gnd

RS-485

14

7- START-UP

Preliminary checks

Checks with machine in OFF, before start-up .

For details refer to the various chapters in the manual.

√

Unit OFF power supply

safe access

•

functional spaces

•

integrity of structure

•

unit on anti-vibration devices

•

air filters present and clean

•

completed idraulic system

•

cooling circuit visual control

•

Start-up sequence

Machine start-up operations.

For details refer to the various chapters in the manual.

√

unit ON power supply

Powered unit

•

compressor carter heaters ON from at least 8 hours

•

phases sequence control

•

vacuum voltage measurement

•

unit ON

•

load voltage measurement and absorptions

•

treated air flow rate measurement

•

earth connection

•

unit powered by fixed network or by electrogen group

•

electric connections by customer

•

supply, return and outdoor air temperature measurement

•

subcooling and overheating measurement

•

no anomalous vibrations check

•

set-point customisation

•

available machine documentation

•

15

7- START-UP

7.1 PRELIMINARY INFORMATION

The indicated operations must be carried out by qualified
technicians and specifically trained on the product.

Upon request, the after-sales assistance centres execute start­up.

The electric, hydraulic connections and the other work of the
system are the responsibility of the installer.

Agree the start-up date with the after-sales assistance centre
with sufficient advance

7.2 PRELIMINARY CHECKS

Before starting any check, verify that :

• the unit is perfectly installed and in compliance with that

reported in this manual

• the electric power supply line of the unit is isolated at start-

!

up

• the isolation device of the line is open, blocked and

equipped with relative signal.

7.3 COOLING CIRCUIT

7.5 ELECTRIC CIRCUIT

Check the unit is connected to the earth system. Check

!

fastening of the conductors: the vibrations caused by handling
and transport may cause loosening.

Power the unit by closing the isolation device but leave in
OFF.

Check the network frequency and voltage values, that are
within the limits:

400/3/50 +/- 10%
Check the unbalancing of the phases:

must be below 2% .
Example :

L1 L2 L3

388V

379V

377V

1. Visually check the cooling circuit: any oil stains can be
symptom of leaks (caused by, for example, transport,
handling or other).

2. Check the cooling circuit is pressurised: use the machine
pressure gauges, if present, or service pressure gauges.

3. Check all service sockets are closed with relative plugs;
their absence may determine coolant leaks

7.4 HYDRAULIC CIRCUIT

1. Find out if, before connecting the unit, the hydraulic

system has been washed and the washing water drained.

2. Check the hydraulic circuit has been loaded and

pressurised.

3. Check the shut-off valves on the circuit are in "OPEN"

position.

4. Check there is no air inside the circuit, eventually bleed it

through the vent valves in the high points of the system.

5. In case of using solutions to be cooled, check the

percentage is suitable for the type of use.

Glycol in weight (%)

Freezing temperature (°C)

10 20 30 40

-3.9 -8.9 -15.6 -23.4

388 + 379 + 377

1)

2)

3)

Operation outside the limits can entail irreversible damages.

!

3

MAX - A = 388 – 381 = 7

7

S =

A

381 (A)

=

x 100 = 1,83 OK

7.6 COMPRESSOR CARTER RESISTORS

Power the compressor oil heating resistors for at least 8 hours
before starting the compressor itself:

• upon unit commissioning

• after every prolonged stop period with unit not

powered
Power the resistors by closing the unit isolator.
Check electric absorption of the resistors to be sure they are

working.
Execute start only if the temperature of the compressor casing

on the lower side is at least 10°C higher than the outdoor
temperature.

Do not start the compressor with carter oil not in temperature.

Safety temperature (°C)

-1 -4 -10 -19

16

7- START-UP

7.7 VOLTAGES

Check the air and water temperatures are within the operatio­nal limits.

Start the unit; refer to the "Adjustment" section for indications
on the control system.

With the unit running, meaning in stable conditions and near
the work ones, check:

• power supply voltage

• unit overall absorption

• absorption of the individual electric loads.

7.8 ROOM PRESSURE CALIBRATION

The Scroll compressors have only one rotation direction.
In the event it is reversed, the compressor is not immediately

damaged, but increases its noise and jeopardises pumping.
After a few minutes, the compressor blocks due to intervention
of the thermal protection. In this case, disconnect power
supply and invert 2 phases on the machine power supply.

Avoid the compressor working for a long time with contrary
rotation: more than 2-3 of these anomalous start-ups can
damage it.

To ensure the rotation direction is correct, measure the
condensation and suction pressure. The pressures must
significantly differ: upon start-up, the suction pressure
decreases whereas the condensation one, increases.

The phase monitor optional, controlling the phases sequence,
can also eventually be installed subsequently.

7.9 REMOTE CONSENTS

Check the remote controls (ON-OFF, etc.) are connected
and, if necessary, enabled with relative parameters
(ELECTRIC CONNECTIONS sections and following pages)

Check the probes or optional components are connected and
enabled with the relative parameters.

7.10 START-UP REPORT

To detect the objective operational conditions is useful to
control the unit over time.

With the unit running, meaning in stable conditions and near
the work ones, detect the following data:

• Overall absorptions and voltages with unit in full load

• Absorptions of the various electric loads

(compressors, fans, pumps etc)

• Temperatures and flow rates of the various fluids

(water, air) at input and output of the unit

• Temperatures and pressures in the feature points of

the cooling circuit (compressor, liquid, suction drain/

unload)

The detections must be kept and made available during

i

maintenance interventions.

7.11 EC DIRECTIVE 97/23 PED

From Directive 97/23 EC PED derive the prescriptions for the
installers, the users and the maintenance operators of the unit
also.

Refer to the local implemented standards; in synthesis and for
merely indicative purposes:

• Compulsory check of first system:

only for units assembled on site by the installer (e.g.

condensing + direct expansion unit)

• Declaration of start-up:

for all units

• Periodical checks:

to be carried out as frequently as defined by the

Manufacturer

(see MAINTENANCE section) .

17

8 - CONTROL

OPERATING MODES

MANUAL

The choice between the HEATING or the COOLING mode is carried out manually by the keypad, the room thermostat or the remote
selector (see the chapter ELECTRICAL CONNECTIONS).

AUTOMATIC

The choice between the HEATING or the COOLING mode is carried out automatically by the electronic module, according to the
room temperature detected by the probe placed on the unit inlet (or on the room thermostat, if present). When temperatures are higher
than the cool set, the unit cools the room; when temperatures are lower than the heat set, it heats the room.

The choice between the automatic and manual change is definite by the parameter num. 1 OnModeMan:
MANUAL = 1 AUTOMATIC = 0

ECO

In this operating mode, lower consumption is preferred to comfort:

The ECO-COOL set is higher than the COOLING set
The ECO-HEAT set is lower that the HEATING set

In this mode, the fan is activated periodically to verify the room temperature and therefore decide to activate or not the available re­sources to satisfy the set.

It can be activated by the keypad.

CLEAN

The CLEAN mode differs from the VENTILATION ONLY because it can be timed; after the set time, the mode deactivates.
It can be activated by the keypad.

VENTILATION

In VENTILATION ONLY, the unit behaves like a fan: the OUTLET fans are activated and no setting on the room temperature is per­formed.

It can be activated by the remote selector.

SET-POINT
MANUAL SET POINT

The ambient set point can be MANUALLY modified by the thermostat at P01 parameter

HID-P1 ROOM THERMOSTAT

The unit is designed for the connection with a remote HID-P1 thermostat to be placed in the room.
It is possible to perform the thermoregulation according to the temperature detected by the probe of the room thermostat: it is neces-

sary to take away the probe placed on the unit inlet and to modify the machine configuration (this operation should be performed by an
authorized service centre).

The thermostat displays the set-point on the display.

18

8 - CONTROL

PARAMETERS

IT IS NOT NECESSARY TO ACCESS THE PARAMETERS FOR
THE STANDARD USE.

THE OPERATIONS INDICATED HERE BELOW ARE NEEDED
EXCLUSIVELY FOR CALIBRATIONS AND

CONFIGURATIONS; THEY ARE THEREFORE ADDRESSED
EXCLUSIVELY TO AUTHORIZED SERVICE CENTERS,

OR ANYWAY TO QUALIFIED TECHNICIANS.
The parameter from 01 to 08 are present in the main module on

the machine: the modification can be realized either by
the thermostat or by the keypad.
The parameters from 09 to 12 are on the thermostat.
To access the parameters:

• switch the machine off and on again by the key ON-OFF.

• Wait for the display to show the setpoint.

• Press both setpoint adjustment keys for a few seconds, till the

code P01 is displayed.

• Then press the ECO key to display the value associated with

the parameter P01.

• The parameter value can be changed while it is displayed

using the setpoint adjustment keys.

• The new value is stored pressing again the ECO key.

• To move to another parameter use the keys arrow “UP” or

arrow “DOWN” for adjusting the setpoint.

• To exit the programming mode press again and simultane-

ously the setpoint adjustment keys in the

• parameter list menu. If the keys are not pressed for at least 10

seconds the module anyway exits the

• programming mode.

P01 Manual SetPoint ( ManSet )
P02 economic set in cooling ( SetCoolECO )
P03 economic set in heating ( SetHeatECO )
P04 manual or auto setpoint enabling ( ONSetMan )
P05 manual or automatic mode change enabling ( ONModeMan )
P06 humidity setpoint in the Cool mode ( SetURCool )
P07 humidity setpoint in the Heat mode ( SetURHeat )
P08 SetCO2 (SetCO2). The displayed value is in “ppm / 10”
P09 setpoint positive/negative max. variation range by the user
P10 thermostat temperature probe offset
P11 thermostat humidity probe offset
P12 Clivet Bus thermostat address
By P09 the range within which the user can modify the machine

set-point is defined.

19

8 - CONTROL

ALARM L IST

The ALARMS indicate a potentially hazardous situation for the machine integrity.
Before resetting the alarm, identify and remove the reason of the lock: a repeated reset can cause irreversible damage. That's why the

reset is MANUAL, namely through keyboard (provided that the cause no longer exists).
PRE-ALARMS and SIGNALS indicate a close risk situation. Their occurrence can be accepted if occasional and/or in temporary situa-

tions (for example at the system start-up).
The reset is AUTOMATIC, that is there is a self-reset as soon as the cause ceases without any keyboard intervention.
FAILURES signal the malfunctioning of probes and transducers; they are AUTOMATICALLY reset, so that anyway the unit can oper-

ate, even if possibly with reduced functions.
In case of doubt contact an authorized service center.
The presence of one or more alarms is signalled by the ALARM CODE blinking and by the machine time it/they occurred.
The cumulative lock relay activates simultaneously with the alarm code displaying.
Some alarms, typically PRE-ALARMS, do not activate the relay.
The table shows all the variables which can be managed by the electronic system.
According to the machine configuration and the accessories, some alarms can be not relevant.

Code Alarms reset

E00 Communication time out between thermostat and unit Automatic
E01 Inlet temp. Probe fault fault Automatic 2.1 2.1
E02 Outlet temp. Probe fault Automatic 2.2 2.2
E03 Externe temperature probe fault Automatic 2.3 2.3
E04 Ambient UR% probe fault Automatic 2.9 3.7
E05 Externe UR% probe fault Automatic 3.8 3.8
E06 Air qualità probe fault Automatic 3.11 3.11
E07 Fire alarm Manual 1.3 1.3
E08 Outlet fan protection intervention Manual 1.7 1.7

C9 Clogged filter signal Automatic 1.8 1.14
E10 Aux. heater overtemperature alarm Manual 1.10
E11 Antifreeze alarm Manual 1.9 1.15
C12 Outlet high temp. signaling Automatic 1.10
C13 Outlet low temp. signaling Automatic
E14 Cond. pressure probe fault. - 1" Automatic
E15 Cond/evap. pressure probe fault - 1 Automatic 2.8 2.8
E16 High pressure alarm - 1 Manual 1.5 1.5

C17 - E17 Low pressure alarm - 1 Automatic 1.4 1.4

E18 Compressor / fan safety device intervention -1 Manual 1.6 1.6
E19 Condenser / evap. water-flow alarm -1 Automatic
C20 High pressure –1 prealarm 1 Automatic

C21 - E21 High pressure –1 prealarm 2 Automatic
C22 - E22 Low pressure prealarm - 1 Automatic

C23 Defrosting forcing intervention - 1 Automatic
E24 Condensation temperature probe fault - 2 Automatic
E25 Cond./evap. pressure probe fault – 2 Automatic 2.9
E26 High pressure alarm – 2 Manual 1.10

C27 - E27 Low pressure alarm – 2 Automatic 1.8

E28 Compressor/fan safety intervention-2 Manual 1.9
E29 Condenser/evap. Water-flow alarm – 2 Automatic
C30 High pressure –2 prealarm 1 Automatic

C31 - E31 High pressure –2 prealarm 2 Automatic
C32 - E32 Low pressure prealarm - 2 Automatic

C33 Defrosting forcing intervention – 2 Automatic
E34 Internal handling coil temperature probe fault Automatic
E35 Unit configuration error Automatic
E36 Condenser temperature probe fault Automatic
E37 Condenser / water evap. antifreeze alarm Automatic

E38 Overhetaing external water coil Automatic

I/O on

1 compr. board

I/O on

2 compr. board

20

9 - MAINTENANCE

9.1 GENERALITY

Maintenance must be carried out authorised after-sales
assistance centres or by specialised personnel.

Maintenance allows:

• maintaining the unit efficient

• reduce deterioration speed to which each equipment is

subject in time

i

• collect information and data to understand the efficiency

state of the unit and prevent possible faults

9.2 FREQUENCY OF INTERVENTIONS

Frequency of the inspections must be at least six-monthly

!

However, frequency depends on the type of use.

• heavy (continuous or highly intermittent, near to operation

limits, etc.)

• critical (essential service).

9.3 MACHINE SCHEDULE

Foresee a machine schedule to keep trace of the
interventions made on the unit.

In this way, it will be easier to adequately schedule the various
interventions and facilitate any troubleshooting.

On the schedule note:

• date

• type of intervention made

• description of intervention

• measurements taken, etc. .

9.4 STAND-BY

If foreseen a long period of inactivity:

• disconnect voltage to avoid electric risks or damages

following lightning

• prevent the risk of freezing (empty or glycol the sections of

the system exposed to negative temperatures, keep any
antifreeze heaters powered)

It is advised that start-up after a period of inactivity be carried
out by a qualified technician, in particular after seasonal stops
or for seasonal switch-over.

Upon start-up, follow that indicated in the START-UP section.
Plan in advance the technician intervention to prevent

misunderstandings and be able to use the system when

i

required

9.5 WATER EXCHANGER

It is very important for the exchanger to be able to provide the
maximum thermal exchange. Therefore, it is essential for the
inner surfaces to be clean of dirt and incrustations.

Periodically check the difference between the temperature of
the supply water and the condensation temperature. If the
difference is greater than 8 °C – 10 ° C it is advisable to clean
the exchanger.

The clearing must be effected :

• With circulation opposite to the usual one

• With a speed at least 1,5 times higher than the nominal

one

• With an appropriate product moderately acid (95% water +

5% phosphoric acid

• After the cleaning rince with water to inhibe the detergent

rests.

9.6 INTERNAL AIR COIL

Accidental contact with the fins of the exchanger may cause
small cuts. When performing the following steps, use
protective gloves.

The finned surfaces of the cooling coils and especially the
condensation collection trays are the places where micro­organisms and moulds most easily flourish. It is therefore
very important to clean regularly with suitable detergents and
disinfect with appropriate products as necessary.

9.7 CONDENSATE DISCHARGE

Dust and deposits could cause obstructions .
In the tank can also proliferate microorganisms and mold.

Very important to provide for a periodic cleaning with
appropriate detergents and in case to a disinfection with
sanitizing products.

Clean the tank, pour some water into the tank and check
water flows normally.

21

9 - MAINTENANCE

9.8 AIR FILTERS

It is really important that the coil for the air treatment can offer
the maximum thermal exchange: so the unit must always

operate with installed, clean filters.
The cleaning and the replacement of the filters are very

important operations from a hygiene-health point of view.
Operating with a clogged filter causes the reduction of the air

rate and, as a consequence, malfunctions, blocks and
possible failure of the unit.
The frequency of the filter check depends on the quality of the

external air, the operation hours of the unit, the dust and
number of people in the rooms.
In general, the ideal frequency can vary from EVERY WEEK to

EVERY MONTH. It is recommended to start with frequent
controls and reduce them according to the level of dirt.

22

9 - MAINTENANCE

9.9 RECOMMENDED PERIODICAL CHECKS SHEET

Checks carried out on…………………….......by……………………………...………….company…..............…………………………………………….

√

presence corrosion

□

panel fixing

□

coil cleaning

□

bowl cleaning + sanitisation

□

outflow test

□

air filters cleaning/inspection

□

air flow rate measurement

□

channelling: anti-vibration devices and fastenings check

□

power supply cable isolation and fastening check

□

earth cable check

□

electric control board cleaning

□

power remote controls state

□

clamps closure, cables isolation integrity

□

phases unbalancing and power supply voltage (vacuum and loaded)

□

absorption of the individual electric loads

□

compressors carter heaters test

□

leaks control *

□

cooling circuit work parameters detection

□

four-way valve exchange check

□

protective equipment test: safety valves, pressure switches, thermostats, flow meters, etc.

□

protective equipment test: setpoint, climatic compensations, power slicing, air flow rate variations

□

control devices test: alarms signal, thermometers, probes, pressure gauges, etc.

□

electrical heaters check - option

□

water coil check - option

□

intervention frequency (months)

1 6 12

Notes/interventions recommended to Owner

*European regulation 303/2008:
Refer to the local implemented standards; in synthesis and for merely indicative purposes, the regulation prescribes the following.
Companies and technicians carrying out installation, maintenance/repair interventions, leaks check and recovery must be CERTIFIED as
foreseen by the local standards.
The leaks check must be carried out on a yearly basis

23

10 - RESIDUAL RISKS

Generality

The most common situations, as they cannot be controlled by the
manufacturer, that may give rise to risk situations for things or persons
are found in this section.

Dangerous area

It is the area in which only an authorised operator can act. The
dangerous area is the area inside the unit, accessible only via removal of
the cowling or parts of it.

Handling

The handling operations, if carried out without all the necessary safety
devices and without the due caution, can cause the falling or overturning
of the unit with consequent damages, even serious, to things, persons
and the unit itself.

Handle the unit following the instructions on the packaging, in this
manual and according to the local standards in force.

In case of coolant gas leak, refer to the coolant "Safety sheet".

Installation

An incorrect installation of the unit can cause water leaks, condense
storage coolant leaks, electric shocks, fires, malfunctioning or damages
to the unit itself.

Check installation is carried out only by qualified technical personnel and
that the instructions in this manual and the local standards in force are
complied with.

The unit installation in a place where, even occasionally, the flammable
gas leaks and consequent storage of these gases in the area around the
unit itself, can cause explosions and fires.

Installation of the unit in an unsuitable place to support the weight and/or
guarantee an adequate anchoring, can cause the falling and/or
overturning, with consequent damages to things, persons or the unit
itself.

Carefully check positioning and anchoring of the unit.
The easy access to the unit by children, unauthorised persons or

animals, may give rise to accidents and injuries, even serious.
Install the unit in places accessible only by authorised personnel and/or

foresee protections against intrusions in the dangerous area.

General risks

Burnt odour, smoke or other signs of serious anomalies may show the
arising of situations that can cause damages to things, persons or the
unit itself.

Electrically isolate the unit (yellow-red isolator).
Contact the after-sales authorised assistance centre to identify and

resolve the problem at origin of the anomaly.
The accidental contact with exchange coils, compressors, supply piping

or other components can cause injuries and/or burns.
Always wear adequate clothing that includes protective gloves for

operations inside the dangerous area.
Maintenance and repair operations carried out by unqualified personnel

can cause damages to things, persons or the unit itself.
Always contact a qualified after-sales assistance centre.
The lack in closing the unit panels, or lack in checking the correct

fastening of all fastening screws of the panelling, can cause damages to
things, persons or the unit itself.

Periodically check closing of all panels and their correct fastening.
In the event of fire, the coolant temperature can reach values such to

bring the pressure over the safety value, with consequent possible
projection of coolant or explosions of the circuit that remain isolated from
closure of the cocks.

Do not stand near the safety valve and never leave the cooling system
cocks closed.

Electrical part

An incomplete connection line to the electric mains and/or with
incorrectly dimensioned cables, and/or with inadequate protective
equipment, can cause electric shocks, intoxication, damages to the unit
or fires.

Carry out all work on the electric system with reference to the wiring
diagram and this manual, assuring use of a dedicated system.

An incorrect fastening of the lid of the electric components can favour
entry of dust, water, etc. inside and consequently cause electric shocks,
damages to the unit or fires.

Always securely fasten the lid to the unit.
The metal masses of the unit, when powered and not correctly

connected to the earth system, can cause electric shocks or death for
electrocution.

Carefully execute connection to the earth system.
Contact with the accessible powered parts inside the unit after the

removal of guards can cause electric shocks, burns or death for
electrocution.

Open and padlock the main isolator before removing the guards and
signal the works in progress with relative sign.

Contact with parts that may power due to unit start-up, can cause electric
shocks, burns or death for electrocution.

When not necessary.

Moving parts

Contact with the transmissions or suction of the fans can cause injuries.
Before accessing inside the unit, open the isolator on the unit connection

line, padlock it and expose appropriate sign.
Contact with the fans can cause injuries.
Before removing the protective grilles or fans, open the isolator on the

unit connection line, padlock it and expose relative sign.

Coolant

The intervention of the safety valves and the consequent coolant gas
expulsion can cause injuries and intoxication. Always wear adequate
clothing and protective goggles for operations inside the dangerous area.

In case of coolant gas leak, refer to the coolant "Safety sheet".
Contact between naked flames or sources of heat with coolant, or the

heating of the pressurised gas circuit (e.g. during welding), can cause
explosions or fires.

Do not place any source of heat inside the dangerous area.
The maintenance or repair interventions requiring welding must be done

with system drained.

Hydraulic part

Defects in the piping, in the connections or in the shut-off parts, can
cause water leaks or projections, with consequent damages to things or
short circuits of the unit.

24

11 - DISPOSAL

11.1 DISCONNECTION

The disconnection operations must be carried out by qualified
technicians.

• Avoid pouring or leaking in room.

• Before disconnecting the unit recover, if present: :

- the coolant gas

• While awaiting dismantling and disposal, the unit can be

11.2 DISMANTLING

FOR DISMANTLING AND DISPOSING THE UNIT MUST
ALWAYS BE DELIVERED TO AUTHORISED CENTRES.

During dismantling, the fan, the motor and the coil, if working,
may be recovered by the specialised centres for an eventual
reuse.

All materials must be recovered or disposed or in compliance
with the relative national standards in force.

For further information on the dismissal of the unit, contact the
manufacturing company.

- solutions to be cooled present inside the hydraulic circuits

stored, even outdoor, as bad weather and temperature
changes do not cause damaging effects for the
environment, as long as the unit has the electric, cooling
and hydraulic circuits intact and closed.

11.3 EC WEEE DIRECTIVE

The units falling within the standard in question are marked
with the symbol at the side.

With a view of respecting the environment, our units are
manufactured in accordance with EC Directive on waste
electric and electronic equipment (WEEE).

The potential effects on the environment and on personal
health, due to the presence of dangerous substances, are
reported inside the use and maintenance manual, in the
residue risks section.

If necessary, additional information to that listed below can be
requested from the manufacturer/distributor/importer, as
responsible for the collection/treatment of waste deriving from
equipment contemplated by EC - WEEE, and the dealer from
where the equipment was purchased or the local services in
charge of waste collection.

The EC-WEEE Directive foresees that the disposal and
recycling of electric and electronic equipment, indicated
therein, are compulsorily managed through appropriate
collection, in adequate centres, separate to that used for the
disposal of mixed urban waste.

The user must not dispose of the equipment at the end of its
life-span, as urban waste, but convey it to appropriate
collection centres, as foreseen by the current standards or
indicated by the distributor.

25

26

27

28

29

30

NOTE

31

CLIVET SPA

Via Camp Lonc 25, Z.I. Villapaiera - 32032 Feltre (BL) - Italy
Tel. + 39 0439 3131 - Fax + 39 0439 313300 - [e-mail]

CLIVET ESPAÑA S.A.

Calle Real de Burgos 12 - 28860, Paracuellos de Jarama, Madrid - España
Tel. + 34 91 6658280 - Fax + 34 91 6657806 - [e-mail]

CLIVET UK LTD
4 Kingdom Close, Segensworth East - Fareham, Hampshire - PO15 5TJ - United Kingdom
Tel. + 44 (0) 1489 572238 - Fax + 44 (0) 1489 573033 - [e-mail]

CLIVET NEDERLAND B.V.

Siliciumweg 20a, 3812 SX Amersfoort - Netherlands
Tel. + 31 (0) 33 7503420 - Fax + 31 (0) 33 7503424 - [e-mail]

CLIVET GmbH

Hummelsbütteler Steindamm 84, 22851 Norderstedt - Germany
Tel. + 49 (0) 40 32 59 57-0 - Fax + 49 (0) 40 32 59 57-194 - [e-mail]

CLIVET RUSSIA

Elektrozavodskaya st. 24, office 509 - 107023, Moscow, Russia
Tel. + 74956462009 - Fax + 74956462009 - [e-mail]

CLIVET MIDEAST FZCO

Dubai Silicon Oasis (DSO), High Bay Complex, Ind Unit No. 3 - PO Box 28178 - DUBAI, UAE
Tel. + 97 14 3208499 - Fax + 97 14 3208216 - [e-mail]

CLIVET AIRCONDITIONING SYSTEMS (P) LTD
3C3, Gundecha Onclave,
Kherani Road, Saki Naka, Andheri (East), Mumbai 400 072 (INDIA)
Tel. + 91 - 22 - 6193 7000 - Fax + 91 - 22 - 6193 7001 - [e-mail]

All reproduction, even partial, is prohibited. © Copyright - CLIVET S.p.A. - Feltre (BL) - Italy

The data contained in this manual is not binding and may be changed by the manufacturer without prior notice.

www.clivet.com