Accorroni CVCX Series Instruction Manual

USER’S-INSTALLER'S MANUAL
CVCX
Hydronic Cassettes
CVCX

2

31
INDEX
I. SECTION I: USER
I. 1DESCRIPTION .......................................................................................................................................33
I. 2ACCESSORIES AND SPARE PARTS ...................................................................................................34
I. 3INSTRUCTIONS FOR USE ....................................................................................................................35
I. 4RAPID OPERATION GUIDE ...................................................................................................................38
I. 5CLEANING THE UNIT.............................................................................................................................40
I. 6PRECAUTIONS AND RECOMMENDATIONS .......................................................................................41
II SECTION II: INSTALLATION AND MAINTENANCE
II. 1TRANSPORT INSTRUCTIONS ............................................................................................................42
II. 2INSTALLATION INSTRUCTIONS .........................................................................................................44
II. 3START-UP INSTRUCTIONS .................................................................................................................56
II. 4MAINTENANCE INSTRUCTIONS ........................................................................................................59
II. 5INSTRUCTIONS FOR DISMANTLING THE UNIT AND DISPOSING OF HAZARDOUS
SUBSTANCES .............................................................................................................................................58
ENCLOSED DOCUMENTS
A1 TECHNICAL DATA ...............................................................................................................................146
A2 DIMENSIONS .......................................................................................................................................150
A3 WIRING DIAGRAMS ............................................................................................................................151
A4 AIR CONDITIONER AND WIRE CONTROLLER WIRING ...................................................................154
ENGLISH

32
KEY TO SYMBOLS
SYMBOL MEANING
GENERIC DANGER!
The GENERIC DANGER sign warns the operator and maintenance personnel about risks that may cause death,
physical injury, or immediate or latent illnesses of any kind.
DANGER: LIVE COMPONENTS!
The DANGER: LIVE COMPONENTS sign warns the operator and maintenance personnel about risks due to the
presence of live voltage.
DANGER: SHARP EDGES!
The DANGER: SHARP EDGES sign warns the operator and maintenance personnel about the presence of
potentially dangerous sharp edges.
DANGER: HOT SURFACES!
The DANGER: HOT SURFACES sign warns the operator and maintenance personnel about the presence of
potentially dangerous hot surfaces.
DANGER: MOVING PARTS!
The DANGER: MOVING PARTS sign warns the operator and maintenance personnel about risks due to the
presence of moving parts.
IMPORTANT WARNING!
The IMPORTANT WARNING sign draws attention to actions or hazards that could damage the unit or its
equipment.
ENVIRONMENTAL PROTECTION!
The environmental protection sign provides instructions for using the machine in an eco-friendly fashion.
REFERENCE STANDARDS
UNI EN 292 Safety of machinery. Basic concepts, general principles of design.
UNI EN 294 Safety of machinery. Safety.distances to prevent the achievement of hazardous areas with the upper
limbs.
UNI EN 563 Safety of machinery. Temperatures of the areas of contact. Ergonomic data to establish values temperatur
e
limits for hot surfaces.
UNI EN 1050 Safety of machinery. principles for assessment of risk.
UNI 10893 Technical documentation of the products. Instructions for user.
EN 13133 Brazing. Brazer approval.
EN 12797 Brazing. Destructive tests of brazed joints.
EN 378-1 Refrigeration systems and heat pumps – safety and environmental requirements. Basic requirements,
definitions, classification and selection criteria.
PrEN 378-2 Refrigeration systems and heat pumps – safety and environmental requirements. Design, construction, test
i
installing, marking and documentation.
CEI EN 60335-2-40 Safety of electrical appliances of household use and similar. Part 2: Particular requirements for
electrical heat pumps, for air conditioners and dehumidifiers.
UNI EN ISO 3744 Determination of the power soud levels of noise sources by sound pressure. Technical design
method in a field essentially free on a reflecting plane.
EN 50081-1:1992 Electromagnetic compatibility - Generic emission standard Part 1: Residential, commercial and light
industry.

33
I SECTION I: USER
I. 1 DESCRIPTION
The air conditioner is a cassette-type terminal air-handling unit (fan coil), for installation in false ceilings, with direct a ir
inlet and outlet in the room.
I. 1.1 CONDITIONS OF USE
The unit is a fan coil for air handling (summer and winter us e) in domestic environments or similar. The unit is not
designed for installation in laundries (CEI EN 60335-2 -40). The units comply with the following directives:
- Machinery directive 98/37/EC (MD);
- Low voltage directive 2006/95/EC (LVD);
- Electromagnetic compatibilit y directive 89/336/EC (EMC).
DANGER!
The unit is only designed for installation in domestic and similar environments.
DANGER!
Do not insert objects into the air inlet or outlet grilles.
IMPORTANT!
- The unit will only function correctly if the instructions fo r use are scrupulously followed, if the specied clearances
are complied with during installation and if the operating restri ctions indicated in this manual are strictly adhered to.
- Should the unit installation not comply with the reco mmended clearances, this will lead to maintenance problems
and reduced performance.
I. 1.2 IDENTIFICATION
The units have a serial number plate on the inside, which can be viewed by opening the grille.
Freddo / C oo l A1
Caldo / Heat A2
Freddo / C oo l B1
Caldo / Heat B2
C1
C2
Freddo / C oo l
Caldo / Heat
Alimenta z ione / Power supp ly 230 V
Frequen za / Fre quen cy 50 Hz
Liv.p rote zione / Prote ction level IP x 4
Po rtata a ria / Air f low XXX m
3
/h
4,2 MPa
Inte rna / In X1 d B(A )
Esterna / Out X2 d B(A)
Inte rna / In XX kg
Esterna / Out XX kg
Tipo / Type R
Q.tà / Q.t y QQQ g
N.se rie / Serial No.
Ca ra tte ris tic h e t ec nic he
Te c hn ical c h ar ac te ris tic s
Model Name
XX kW - Unità Interna
XX kW - Indoor unit
Pot en za
Capa city
Poten za a sso rbita
Power inpu t
Corr ente
ass orbita
Curr ent in
p
u t
Max.pressione funziona mento
Max.w orking p ress ure
Max rumorosità
Max.no ise lev el
Pe so
Weight
Refrigerante
Refrige rant
I. 1.3 CONSTRUCTION FEATURES
•Self-supporting structure in galvanised sheet metal comple te with a device for raising the condensation from the pan
to the drain level, air supply panel with motorised adjust able outlet louvers, inlet grille and renewable lter.
•Heat exchanger with nned coil.
•Three-speed fan.
•Auxiliary condensation collection pan.
I. 1.3.1 Versions
2-pipes fan coil unit (cassette type).
I. 1.4 OPERATING LIMITS
IMPORTANT!
If the unit is not installed in keeping with the operating limi ts, the rm is relieved of all responsibility in the event of
damage to property or personal injury.

34
Water circuit
• Maximum water side pressure: 1400 kPa (142 m w.c.).
• Minimum incoming water temperature: + 4°C.
• Maximum incoming water temperature: + 80°C.
Ambient air
• Minimum temperature: 5°C (1).
• Maximum temperature: 32°C.
Note: (1)
If the ambient temperature is likely to fall below 0°C, we recommend emptying the water system in order to prevent
frost damage (see "Water Connections" paragraph).
Unit Main Supply
• Nominal single-phase voltage 230V ~ 50Hz.
I. 1.5 INFORMATION ON IMPROPER USE
IMPORTANT!
The machine has been designed and constructed solely and exclusively for use as a terminal unit for air handling.
Any other use is strictly prohibited. Do not install the machine in an explosive environment.
I. 1.6 INFORMATION ON RESIDUAL AND IRREMOVABLE RISKS
IMPORTANT!
Pay careful attention to the signs and symbols on the machine.
If there are any remaining risks in spite of the provisions adopted, or if there are any potential or hidden risks, stickers
are attached to the machine in compliance with standard ISO 3864.
I. 2 ACCESSORIES AND SPARE PARTS
IMPORTANT!
- Only use original spare parts and accessories. The firm shall not be held liable for damage caused by tampering or
work carried out by unauthorised personnel or malfunctions caused by the use of non-original spare parts or
accessories.
- In places where the water is particularly hard, it is advisable to use a water softener.
I. 2.1 ACCESSORIES AND SPARE PARTS SUPPLIED AS STANDARD
- Auxiliary condensation collection tray.
Models HCA(/B) 22-29-35-42 Models HCA/(B) 60-80
HCA/4(B) 22-35-50 HCA/4(B) 60-80-120
I. 2.2 ACCESSORIES AND SPARE PARTS SUPPLIED LOOSE
- 3-ways solenoid valve for 2-pipe-systems (auxiliary condensation collection tray supplied as standard on every unit).
Models HCA(/B) 22-29-35-42 (¾” – 30 Nm) Models HCA/(B) 60-80 (¾” – 30 Nm)
HCA/4(B) 22-35-50 (¾” – 30 Nm) HCA/4(B) 60-80-120 (¾” – 30 Nm)
- Forced condensation drainage micro-pump.

35
– Outlet mouth closure (only for models HCA/(B) 60-80, HCA/4(B) 60-80-120).
I. 2.3 CONTROLS SUPPLIED AS STANDARD
• Remote control R51 with batteries. For instructions, please refer to paragraph I.3.1.
(C)
。
TEMP
AUTO
COOL
DRY
HEAT
FAN
HIGH
MED
LOW
MODE
FAN SPEED
TIMER ON
ECONOMY
ON/OFF
SWING TIMER OFF
AIR
DIRECTION
RESETLOCK
SETTING TEMP( )
SWING
I. 2.4 CONTROLS SUPPLIED LOOSE
• Wire control with LCD display and 10 keys, for the manual regulation of all the appliance functions on the basis of
the selected ambient temperature. The wire control is designed to be wall-mounted. For instructions on how to install
and use the wire control, please refer to the instructions for use provided with the same.
I. 3 INSTRUCTIONS FOR USE
The following operations can be carried out using the remote control and/or the wire control see the instructions for
use provided with the same:
• Switching the unit on/off,
• Selection of the three fan speeds.
• Adjusting the thermostat and maintaining the desired ambient temperature.
• Switching between the cooling/heating operating cycle.
The unit panel houses a number of indicators which provide information on the unit status or alarm signals. If the
remote control and/or wire control are temporarily unavailable, they can be used to operate the unit in manual mode
using the MANUAL key.
I. 3.1 REMOTE CONTROL R51
The remote control can be used to set and display all the unit operating parameters, facilitating the all programming
operations. The remote control is powered by two 1.5 V AAA R03 batteries.
IMPORTANT!
It is advisable to test the remote control in order to establish its reception zone.

36
I. 3.1.1 Description of the remote control and relative functions
(C)
。
TEMP
AUTO
COOL
DRY
HEAT
FAN
HIGH
MED
LOW
MODE FAN SPEED
TIMER ON
ECONOMY
ON/OFF
SWING TIMER OFF
AIR
DIRECTION
RESETLOCK
SETTINGTEMP( )
SWING
1
55
3
6
10
9
10
11
4
8
8
12
7
2
I. 3.1.2 Description of the display
1
5
6,7
42
23
8
TIMER ON OFF
1) Transmission indicator appears whenever a signal is transmitted to the internal unit.
2) Operating mode display (MODE): Indicates the selected mode.
3) ON/OFF display: Indicates that the unit is in operation.
4) Temperature display (TEMP): Indicates the set temperature (from 17 °C to 30 °C). When the FAN operating mode
is selected, no temperature is displayed.
5) Lock display: Indicates that the remote control is locked.
6) Timer display (TIMER ON). If you press the TIMER ON key, the timer on time is displayed.
7) Timer display (TIMER OFF). If you press the TIMER OFF key, the timer off time is displayed.
8) Fan speed display (FAN): Indicates the selected fan speed. It may be displayed as AUTO or one of the three
speeds: LOW, (MED) MEDIUM, HIGH.
I. 3.1.3 Using the remote control
The remote control uses two 1.5 V, R03 type AAA batteries (provided). To insert the batteries, remove the cover
completely from the remote control by sliding it downwards. Insert the batteries in the relative housing, making sure
you respect the polarities indicated. Replace the cover and select the desired functions. Follow the same steps when
replacing flat batteries with new batteries. On average the batteries last for around one year.
The remote control display is always on. Remove the batteries from the remote control if you expect not to use it for a
long period of time. Point the remote control towards the unit receiver when setting the various functions. If the signals
are received correctly, the unit will emit a "beep". The remote control is able to transmit up to a distance of around 8
metres from the receiver. Do not expose the remote control to excessive damp, direct sunlight or other heat sources,
and do not subject it to knocks. Protect the remote control from water and other liquids. If the unit's infrared receiver is
exposed to direct sunlight or strong artificial light, or if a fluorescent lamp with electronic switch is placed nearby, the
unit could be subject to operating anomalies or may not work at all. The use of other remote controls in the vicinity or
in the same room as the unit could affect its operation. Do not point other remote control transmitters at the unit
receiver.
(1) Transmits the infrared signals to the unit receiver.
(2) Indicates the unit status and operating modes.
(3) Makes it possible to switch the unit on and off. Press the key once to
switch it on, press it again to switch it off.
(4) Makes it possible to select the desired operating mode (AUTO, COOL,
DRY, HEAT, FAN).
(5) These keys make it possible to set the desired ambient temperature.
▲the requested temperature is increased up to 30 °C ▼the requested
temperature is decreased down to 17 °C. Every time the key is pressed
the temperature is changes with 1°C.
(6) Press this key to select the fan speed. When you select AUTO, the fan
speed is automatically regulated on the basis of the ambient temperature.
It is also possible to select the fan speed manually, choosing between 3
settings: LOW, MED (MEDIUM); HIGH.
(7) Makes it possible to set the louver angle.
(8) This key enables the louver to swing vertically (horizontally).
(9) This function is not available in the units.
(10) Press these keys to set the unit on/off timer.
(11) Makes it possible to lock all the remote control functions.
(12) Press this button to reset the remote control settings.

37
I. 3.2 SWITCHING THE UNIT ON AND OFF
ON/OFF
Press the ON/OFF key to switch the unit on or off.
When switching from ON to OFF the operating mode is interrupted and current time delays are cancelled, while the
appliance and fan operating modes and the set temperature value are memorised. When switching from OFF to ON,
the machine automatically restores all the operating modes memorised before it was switched off.
When the unit is on, the unit on symbol appears on the display.
The presence of this symbol on the display indicates that the remote control is transmitting the settings to unit ▲.
I. 3.3 SETTING THE OPERATING MODE
By pressing the Mode key several times it is possible to change the unit operating mode. The selected operating
mode symbol appears on the display.
AUTO: automatic mode.
COOL: cooling mode.
DRY: dehumidification mode.
HEAT: heating mode.
FAN: fan only mode.
When the automatic programme AUTO is selected, the unit may operate in COOLING or HEATING mode depending
on the temperature difference in place between the ambient temperature and the temperature selected on the remote
control. When the cooling programme COOL is selected, the unit operates with a free temperature setting, lowering
the ambient temperature. When the dehumidification programme DRY is selected, the unit operates with a free
temperature setting, progressively lowering the ambient temperature and humidity. When the dehumidification
programme DRY is in operation, the FAN SPEED button cannot be used. When the heating programme HEAT is
selected, the unit operates with a free temperature setting, raising the ambient temperature. When the fan programme
FAN is selected, the unit operates without temperature settings, simply blowing air through the environment.
IMPORTANT!
- The unit fan stops when the set temperature is reached and is then automatically reactivated at minimum speed to
prevent air stratification phenomena in the vicinity of the appliance.
- When the COOL DRY mode is selected, the fan may not start up straight away because the ANTI-HEATING mode
is present (see paragraph I.4.6.1). When the HEAT mode is selected, the fan may not start up straight away because
the ANTI-COOLING mode is present (see paragraph I.4.6.2).
I. 3.4 ECONOMY MODE
This function is not available in the units.
I. 3.5 SETTING THE DESIRED TEMPERATURE
▲and▼by pressing these keys in the AUTO, COOL, DRY and HEAT modes, it is possible to increase or reduce the
desired temperature between 17°C and 30°C. The display shows the selected temperature.
I. 3.6 SETTING THE LOUVER
In order to obtain optimal air distribution, adjust the motorised louver, making sure that the air flow is not directly
pointed at anyone. For the motorised louver, proceed as follows:
By pressing the AIR DIRECTION key several times it is possible to modify the position of the
deflector.
By pressing the SWING key it is possible to activate continuous louver swing mode.
DANGER!
Moving the motorised louver manually when the unit is on could cause operating problems or damage the adjustment
system.
I. 3.7 SETTING THE FAN
By pressing the FAN SPEED key several times it is possible to adjust the fan speed between the three available
speeds, or to activate the AUTO mode. The operating mode appears on the display:
AUTO: automatic speed operation
LOW: minimum speed operation
MED: medium speed operation
HIGH: high speed operation
AIR DIRECTION
SWING
ECONOMY

38
I. 3.8 SETTING THE TIMER
IMPORTANT!
In order for the timer settings to have an effect, the remote control must ALWAYS be positioned near the unit (at a
maximum distance of 8 metres) and be pointed towards the same.
The TIMER function is not repetitive and must be set whenever you wish to use it. When the Timer ON-OFF function
is selected, the unit may be switched on with a slight delay with respect to the programmed timer time. This should be
considered completely normal and does not mean that the unit is not operating correctly.
TIMER ON and TIMER OFF: Pressing these keys makes it possible to programme the unit on and/or off time.
▲and▼: Pressing this key makes it possible to modify the switch-on or switch-off time. Whenever the key is pressed,
the time is put forward or back by 0.5h then after 10h the it will increase with 1h in each press.
I. 3.10 KEYPAD LOCK
By using a sharp object to press the LOCK key it is possible to prevent use of the remote control keypad
completely, meaning that it can be protected from use by children etc. The display will show the symbol
illustrated here. To remove the keypad lock, use a sharp object to press the LOCK key again.
I. 3.11 RESETTING THE REMOTE CONTROL
By using a sharp object to press the RESET key, it is possible to restore the factory settings to the remote
control.
I. 4 RAPID OPERATING GUIDE
TEMP
AUTO
COOL
DRY
HEAT
FAN
HIGH
MED
LOW
MODE
FAN SPEED
TIMER ON
ECONOMY
ON/OFF
SWING TIMER OFF
AIR
DIRECTION
RESET LOCK
SETTING TEMP ( °C )
SWING
1
2
4
3
5
6
I. 4.1 AUTOMATIC MODE
When the automatic programme AUTO is selected, the unit may operate in COOLING or HEATING mode depending
on the temperature difference in place between the ambient temperature and the temperature selected on the remote
control.
The unit will o
p
erate in mode Condition
Coolin
g
TA - TS > 1 °C
Fan -1 °C ≤TA - TS ≤1 °C
Heatin
g
TA - TS < -1 °C
TA = ambient temperature, TS = selected temperature
I. 4.2 COOLING MODE
To set the cooling mode COOL, proceed as follows:
• select COOL mode by pressing the MODE key (1);
• adjust the desired temperature by pressing the TEMP keys (2). The display shows values from 17 °C to 30 °C;
• adjust fan speed by pressing FAN SPEED key (3), choosing between AUTO and other speeds HIGH-MED-LOW;
• point the remote control at the unit receiver and press the ON/OFF key ON/OFF (4);
• adjust the air flow in keeping with requirements by using the SWING key (5) or AIR DIRECTION key (6). Once these
adjustments have been made, they will be offered when the unit is switched back on. If received by the unit, every
signal transmitted by the remote control is confirmed by a "beep”.
I. 4.3 DEHUMIDIFICATION MODE
To set the dehumidification mode DRY, proceed as follows:
• select the dehumidification programme by pressing the MODE key (1);
• adjust the desired temperature by pressing the TEMP keys (2). The display shows values from 17 °C to 30 °C;
• point the remote control at the unit receiver and press the ON/OFF key ON/OFF (4);
• adjust the air flow in keeping with requirements by using the SWING key (5) or AIR DIRECTION key (6); Once these
adjustments have been made, they will be offered when the unit is switched back on. If received by the unit, every
signal transmitted by the remote control is confirmed by a "beep”. When the dehumidification programme DRY is

39
selected, the unit operates with a free temperature setting, progressively lowering the ambient temperature and
humidity. When the dehumidification programme DRY is in operation, the FAN SPEED button cannot be used.
I. 4.4 HEATING MODE
To set the heating mode HEAT, proceed as follows:
• Select the heating programme by pressing the MODE key (1);
• Adjust the desired temperature by pressing the TEMP keys (2). The display shows values from 17 °C to 30 °C;
• Adjust fan speed by pressing FAN SPEED key (3), choosing between AUTO and other speeds HIGH-MED-LOW;
• Point the remote control at the unit receiver and press the ON/OFF key ON/OFF (4);
• Adjust the airflow in keeping with requirements by using the SWING key (5) or AIR DIRECTION key (6). Once these
adjustments have been made, they will be offered when the unit is switched back on. If received by the unit, every
signal transmitted by the remote control is confirmed by a "beep”.
I. 4.5 FAN MODE
To set the fan mode FAN, proceed as follows:
• Select the fan mode by pressing the MODE key (1);
• Adjust fan speed by pressing FAN SPEED key (3), choosing between AUTO and other speeds HIGH-MED-LOW;
• Point the remote control at the unit receiver and press the ON/OFF key ON/OFF (4);
• Adjust the air flow in keeping with requirements by using the SWING key (5) or AIR DIRECTION key (6); Once these
adjustments have been made, they will be offered when the unit is switched back on. If received by the unit, every
signal transmitted by the remote control is confirmed by a "beep” sound.
I. 4.6 COMFORT FUNCTIONS
I. 4.6.1 Anti-Heating
The ANTI-HEATING function is envisaged for COOL and DRY operating modes. It prevents the fan from starting up if
the inlet water temperature at the exchanger is above 22°C for the minimum speed and 25°C for the medium and
maximum speed, thus preventing unpleasant hot air flows. This situation could occur the first time the unit is started or
after long periods out of use. When the ANTI-HEATING function is active, the red DEF./FAN LED is on.
I. 4.6.2 Anti-Cooling
The ANTI-COOLING function is envisaged for the HEAT operating mode. It prevents the fan from starting up if the
inlet water temperature at the exchanger is below 28°C for the minimum speed and 32°C for the medium speed and
maximum speed, thus preventing unpleasant cold air flows. This situation could occur the first time the unit is started
or after long periods out of use. When the ANTI-COOLING function is active, the red DEF./FAN LED is on.
IMPORTANT!
The unit fan stops when the set temperature is reached and is then automatically reactivated at minimum speed to
prevent air stratification phenomena in the vicinity of the appliance.
I. 4.7 DESCRIPTION OF THE UNIT INDICATORS
The indicators found on the unit panel provide information on the unit status or any alarm signals. Moreover, if it is
temporarily not possible to use the remote control or the wire control, the MANUAL key can be used to operate the
unit in manual mode.
Indicators for models: HCA 22-29-35-42 Indicators for models: HCA 60-80
HCA/4 22-35-50 HCA/4 60-80-120
1. Infrared receiver.
2. Manual operation key (MANUAL).
3. OPERATION LED (green). Indicates that the unit is on.
4. TIMER LED (yellow). Indicates that the TIMER has been set.
5. DEF./FAN LED (red). Indicates that the ANTI-COOLING or ANTI-HEATING function is active.
6. ALARM LED (red). Indicates that the "condensation water level" alarm is active.
7. Temperature display (only for models HCA 60 - 80 and HCA/4 60 - 80-120). Indicates the set temp. in AUTO,
COOL and HEAT mode.
I. 4.7.1 Manual operation (without remote control or wire control)
In the event of an emergency (for example, when the remote control or wire control are broken) the unit can be
operated using the indicators envisaged on the panel of the unit itself. By pressing the MANUAL key several times, it is
possible to change the unit operating mode in keeping with the following outline:
OFF
A
U
T
OCOOL HE
A
T
OPERATION TIMER DEF./FAN ALARM
2 3 4 7 5 61
OPERATION TIMER DEF./FAN ALARM
MANUAL
1 3 4 2 56

40
MODE OPERATION TEMP. FANS LOUVERS
OFF Unit off
A
UTO
A
utomatic 24°C
A
utomatic s
p
eed Swin
g
COOL Coolin
g
25°C Medium s
p
eed Swin
g
HEAT Heatin
g
22°C Medium s
p
eed Swin
g
I. 4.8 UNIT ALARM (Compact cassette)
If an alarm has been triggered by a fault that prevents the appliance from operating, the LEDs make it possible to
establish the type of alarm.
OPERATION
(green)
TIMER
(yellow)
DEF./FAN
(red)
ALARM
(red) Meaning Reset Display
-- BLINK -- -- Amb. Temp. probe faulty
A
utomatic E2
BLINK Water Temp. probe faulty
A
utomatic E3
BLINK BLINK -- -- EEPROM faulty NO E7
-- -- -- BLINK
Condensation water level
A
utomatic E8
-- -- BLINK --
Indoor unit switch at long-range
controller is dialed to OFF ------- -----
I. 5 CLEANING THE UNIT
DANGER!
Alwaysdisconnect fromthe powersupplybefore startingcleaningor maintenancework. Do notspray water onto the unit.
It is possible to clean the unit exterior. To clean it, use a soft cloth dampened with water and alcohol. Do not use hot
water, abrasive or corrosive substances, or solvents.
I. 5.1 CLEANING THE AIR FILTER
To ensure correct air suction, the filter must be cleaned at least once a month, or even more often if the unit is
installed in a very dusty environment. The filter must always be removed from the unit for cleaning purposes.
The air filter is made from acrylic fibre that can be washed in water.
1) To open the grille, pull the two levers L towards the inside in models HCA(/B) 22-29-35-42 and HCA/4(B) 22-35-50,
or press the two buttons P in models HCA(/B) 60-80 and HCA/4(B)60-80-120.
L
L
P
P
2) Extracting the filter
45°

41
3) Clean the filter by removing the dust with a vacuum and then rinsing it under running water. Dry the filter and
replace it correctly in the grille.
Before replacing filter, make sure that it is clean and dry. If the filter is damaged, replace it with an original filter.
I. 6 PRECAUTIONS AND RECOMMENDATIONS
Never obstruct the airflow. The use of water or spray canisters near the unit could cause electric shocks and
malfunctions.
I. 6.1 PREPARING FOR PERIODS OUT OF USE
IMPORTANT!
Failure to use the unit during the winter period may cause the water contained in the system to freeze.
During long periods out of use, the unit should be disconnected from the electricity supply by opening the system
main switch,prepared by theinstaller.Failureto use the unit during the winter period may cause the water contained in
the system to freeze. Empty the water circuit or, alternatively, mix the water with a suitable quantity of antifreeze.
I. 6.2 START-UP AFTER PERIODS OUT OF USE
Before starting up:
• Clean or replace the air filter.
• Clean the exchanger.
• Clean or unblock the condensation collection tray drain.
• Bleed the air from the water system. We recommend running the unit at maximum speed for a few hours in order to
ensure that it is in good working order.

42
II SECTION II: INSTALLATION AND MAINTENANCE
II. 1 TRANSPORT INSTRUCTIONS
II. 1.1 PACKAGING, COMPONENTS
DANGER!
Do not open or tamper with the packaging until it is in the place of installation. The units should only be moved and
lifted by specialist personnel trained in these operations.
Follow the instructions below when removing the packaging:
• Check for visible damage;
• Open the packaging;
• Make sure that the envelope containing the use and maintenance manual is present;
• Dispose of the packaging material in keeping with current legislation, delivering it to specific collection or recycling
centers.
ENVIRONMENTAL PROTECTION!
Dispose of the packaging materials in compliance with the national or local legislation in force in your country.
DANGER!
Do not leave the packaging within reach of children.
II. 1.2 HANDLING INSTRUCTIONS
DANGER!
The unit should be moved with care, in order to avoid damage to the external structure and to the internal
mechanical and electrical components. Also make sure that there are no obstacles or people blocking the route, to
avoid the danger of collision, crushing or the lifting-gear overturning. Always use personal protective equipment.
All the above operations must be performed in compliance with current safety standards, both as regards the
equipment used, and the operating methods. Before moving the unit, make sure that the lifting capacity is suitable for
the weight of the unit in question. The units can be moved/lifted manually or by means of a forklift truck. If the unit
weights more than 30kg, it must be lifted by two people. However, we recommend using a forklift truck. If several
machines need to be moved at the same time, we recommend placing them in a container and lifting it with a forklift
truck or similar.
II. 1.3 STORAGE CONDITIONS
The packaged units are stored by placing no more than four units one on top of the other. They must be stored in a dry
place.
II. 1.4 CLEARANCES AND POSITIONING
IMPORTANTE!
Incorrect positioning or installation of the unit may amplify noise levels and vibrations generated during operation.
To position the unit, use the fixture template provided with the same.
>1000mm
>1000mm
>
>
OUT OUT
IN
>10mm
>280mm
> 2300 mm (*) > 2500 mm (**) MAX 4000 mm
>1000 mm
>1000 mm

43
(*) models HCA(/B) 22-29-35-42, HCA/4(B) 22-35-50
(**) models HCA(/B) 60-80, HCA/4(B) 60-80-120
Models: HCA(/B) 22-29-35- 42 Models: HCA/(B) 60-80,
HCA/4(B) 22-35-50 HCA/4(B) 60-80-120
CW
647 523
647
780
840
950
950 680 840
(Unit: mm)
575
545
575
WC
C = Condensation drain
W = Watter connections
Avoid blocking the air outlet or inlet:
Avoid direct sunlight in cooling mode (draw the curtains if necessary):
Avoid installation near heat sources that could damage the unit:
A
v
o
i
d
i
n
s
tallati
o
n
i
n
en
v
ir
o
n
m
e
n
t
s
wit
h
a
m
a
r
k
e
d
pre
s
e
n
c
e
o
f
h
i
g
h
frequencies.
Avoid partial insulation of the pipes and non-level installation since this
can cause leaks.

44
A
void installation in environments where oil vapours are present.
A
void condensation drainage pipes,in a public drain/sewer, without a
s
iphon. The siphon must be of a sufficient height in relation to the flap to
permit correct evacuation of the condensation.
Avoid uphillsections of the condensation drain pipe far from the unit.
These may only be created in the proximity of the unit, with a maximum
height difference of 200 mm with respectto the top of the base.
Avoid crushing the connection pipes and the condensation drain pipe.
Avoid horizontal stretches and bends in the condensation drain pipe
that do not achieve a minimum angle of 2%.
Avoid loose electrical connections.
II. 2 INSTALLATION INSTRUCTIONS
DANGER!
- Skilled technicians, qualified to work on air conditioning and cooling systems, must only carry out installation.
Incorrect installation could cause the unit not to run poorly, with a consequent noticeable deterioration in
performance.
- The personnel must install the unit according to national or local regulations in force at the time of installation.
Always use personal protective equipment.
- Make sure that the voltage and frequency of the electrical system meet requirements and that the available installed
power is sufficient for the operation of other domestic appliances connected to the same power lines. Make sure that
the power supply network corresponds to current national safety standards. Make sure that the unit is effectively
earthed.
- The unit's condensation drainpipe should only be extended with a PVC pipe (not provided) of a suitable length and
diameter for installation, and should be insulated.
- The unit is not designed for installation in laundries (CEI EN 60335-2-40).
For installation, follow the instructions provided below: Install the unit as close as possible to the room. The direction
of the airflow can be adjusted by moving the louver fins according to the operating mode (cooling or heating), in order
to optimize air distribution throughout the room. During operation in cooling mode, the optimal louver fin position (2) is
that which enables the out coming air to brush the ceiling (Coanda effect). During heating, on the other hand, the
optimum position (1) is pointed at the floor, thus avoiding the stratification of hot air at the top of the room.
1
2
cFin positioned for heating mode
dFin positioned for cooling mode
In order to enable quick and easy installation and maintenance, make sure that the false ceiling panels can be
removed in the chosen position or, in the case of brickwork false ceilings, that access to the unit is guaranteed. In the
case of plasterboard false ceilings, the unit housing area must measure no more than 660 x 660 mm (models

45
HCA(/B) 22-29-35-42, HCA/4(B) 22-35-50) and 900 x 900 mm (models HCA(/B) 60-80, HCA/4(B) 60-80-120). In the
case of damp environments, insulate the hanging brackets with specific self-adhesive insolents.
To close one or more of the air outlet mouths, use the specific KIT.
ATTENTION!
Do not close more than 2 mouths. Do not restrict the airflow in any way other than that illustrated in the figure.
II. 2.1 BEFORE INSTALLATION
Carry the packaged unit as close as possible to the installation spot. It will be easier to install the unit using a lift.
IMPORTANT!
Do not move the unit by the condensation drain pipe or the water connections. Hold it by the four corners.
II. 2.2 INSTALLATION
Mark the position of the support braces; the connection and condensation drain pipes, the power cables and any
wired control cables. The cardboard template, provided, can be useful during this operation.

46
FC
D
F1
VF2
E
x
a
m
p
le
o
ffi
x
ture t
o
a
w
oode
n
stru
c
ture:
1
2
3
4
1
1
4
1Nut
2 Wooden structure
3 Threaded brace
4Washer
O
nce you have installed the four braces, tighten the nuts without locking
t
hem,and insert the washers as illustrated in the figure:
1
3
4
1
1
4
2
5
5
1Nut
2Space forhanging bracket
3 Threaded brace
4Washer
5T-section
5
5
33
66
Level the unit using a spirit level and adjusting the nuts and lock nuts on
the threaded braces,keeping a distances of 25÷30 mm between the
bodyoftheunitandtheinnersurfaceofthefalseceiling.
3
25+30 mm 9
8
6
3 Threaded brace
6Hanging bracket
8False ceiling
9Spirit level
D= cardboard template.
FC = central reference hole.
F1 = hole for securing the template to the unit.
V= screws for securing the template to the unit (M5X16 for models HCA(B)
22-29-35-42, HCA/4(B) 22-35-50 / M6x16 for models HCA(/B) 60-80,
HCA/4(B) 60-80-120.
F2 = brace position reference hole.
Depending on the type of ceiling, the braces can be installed as illustrated in
the figure.

47
P
o
s
iti
o
n
t
h
e
c
onne
c
ti
o
n
pip
e
s
i
n
a
d
v
a
n
c
e
,a
s
d
e
s
c
ribe
d
i
n
paragrap
h
II.2.5. Lift the unit carefully (without the frame), holding it by the four
brackets (or the four corners) and place it in the false ceiling.
5
5
33
66
7
3 Threaded brace
5T-section
6Hanging bracket
7Water connections
If it is not possible to remove a T-section, it will be necessary to tilt the
unit (this operation can only be carried out if the false ceiling is over 300
mm high).
R
e
pla
c
e
t
h
e
T
-
s
e
c
ti
o
n
(
i
f
it ha
d
b
e
e
n
r
e
m
o
v
ed).
A
li
g
n
t
h
e
u
n
it
w
it
h
t
h
e
T
-
sections, tightening the nuts and lock nuts.
5
5
33
66
Lastly, after having made the water and condensation drain
connections, make sure that the unit is still level.
II. 2.3 INSTALLING THE FRAME/GRILLE ASSEMBLY
Unpack the frame/grille assembly and make sure it is not damaged.
IMPORTANT!
Only use the screws provided to secure the frame.
II. 2.3.1 Removing the grille from the frame (for all models)
To install the frame/grille assembly on the unit, you should begin by removing the grille from the frame as described
below. Open the grille by turning the two levers L towards the inside (models HCA(/B) 22-29-35-42, HCA/4(B) 22-35-
50) or by pressing the two buttons P (models HCA(/B) 60-80, HCA/4(B) 60-80-120):
L
Open the grille to an angle of approximately 45° and then disconnect it from the frame:
45°
II. 2.3.2 Installing the frame in models HCA(/B) 22-29-35-42, HCA/4(B) 22-35-50
Align the frame with the unit and screw it to the latter using four M5x16 screws and the respective washers. If
necessary, work on the frame and adjust it position to centre it perfectly on the unit. Secure the frame safety cords to
the body of the unit:

48
Tighten the four screws until the thickness of the sponge seal, placed between the frame and the body of the unit, has
been reduced to 4-6 mm and the edge of the frame is substantially in contact with the false ceiling (a gap of under 5
mm):
4-6 mm
8
C
U
U = body of the unit, C = frame, 8 = false ceiling
If there is still a gap between the frame and the false ceiling, it should be reduced by working on the brace nuts and
lock nuts again:
Replace the grille:
45°
II. 2.3.3 Installing the frame in models HCA(/B) 60-80, HCA/4(B) 60-80-120
Remove the covers in place at the four corners of the frame:
Align the frame with the unit and secure it, coupling the four hooks on the frame with the corresponding brackets on
the unit itself. Work on the four hook adjustment screws to secure the frame. If necessary, work on the frame and
adjust it position to centre it perfectly on the unit.
If there is still a gap between the frame and the false ceiling, it should
be reduced by working on the brace nuts and lock nuts again: