CLIMAVENETA i-ACCURATE Series i-AX Operating instructions

EN
INSTALLATION MANUAL - USER AND MAINTENANCE
Precision air-conditioners
i-ACCURATE
i-AX Direct Expansion
Air Cooled
i-AW Direct Expansion
Water Cooled
i-AD Dual Fluid
Air Cooled
i-AT Dual Fluid
Water Cooled
i-AF Free Cooling
Water Cooled
frame 2: 12-18
frame 3: 20-29
frame 4: 50
frame 5: 70
frame 6: 90
frame 7: 130-150
50/60Hz range

ENi-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF 3
INDEX
Documents 4
Direct expansion unit configuration 4
General characteristics 4
Air flows 9
Rating plate 10
Technical data 10
Hot water re-heating 15
Reheat coil hot gas 15
Accessing the main components 15
Transport and handling 16
Dimensions and weight 17
Positioning the air-conditioner 21
Operating space 21
Operating limits 22
Optional base moulding (over units) 22
Air distribution (under units) 23
Intake plenum (under units) 23
Discharge plenum (over units) 23
Motor-driven damper (over/under units) 24
Front outlet plenum (over units) 24
Front outlet base moulding (under units) 24
Soundproof suction or outlet plenum 25
Direct free cooling plenum (under units) 25
Direct free cooling base (over units) 26
Direct free cooling connection kit (under/over units) 26
Optinal air filter 27
Optional Fresh airo 27
Position and diameter of the water connections 28
Water connections 32
Connection to brazed plate condenser i-AW-i-AT-i-AF 32
Correction factors 32
Air condenser: suggested installation 36
Refrigerant connections 37
Oil separator 38
Volume 39
Condensate drain a 40
Electrical connections 40
Minimum cross-sections of the power supply cables 41
Electrical specifications 41
Electrical connection of the outdoor air-cooled condenser
i-BRE/BRE and/or the outdoor dry cooler i-BDC/BDC 46
Vaacum and charge 47
Operation and control 48
Instruments and alarms 49
Calibrating the control and safety devices 50
Calibrating the pressure control valve 50
Calibrating the air flow sensor 51
Calibrating the dirty filter sensor 51
Temperature and humidity probe 52
Servomotor and hot water valve 52
Electric heaters 57
Humidifier 57
Humidifier power supply 59
Humidifier and condensate drain 59
Condensate drain pump and humidifier drain pumpe 60
Std condensate drain pump (low water temperature) 60
Condensate drain pump for high water temp. 61
(humidifier)
Double power supply with automatic switching 62
Maintenance 63
Dismantling 63
Troubleshooting 64
In some parts of this manual, the following symbols are used:
WARNING = for actions that require special care and
suitable preparation
PROHIBITED = for actions that absolutely MUST NOT
be performed
Specialist personnel (electrician)
Person with in-depth knowledge and experience such as to
be able to recognise risks and avoid dangers that may derive
from electricity (IEV 826-09-01).
Liability disclaimer
This bulletin refers to standard executions, in particular for dimension, weight, electric, hydraulic, aeraulic and refrigerant connections
(whereas applicable). Contact Climaveneta Commercial Office for further drawings and schemes.
Climaveneta declines any liability derived from the bulletin’s use.
This bulletin is of exclusive property of Climaveneta, and all forms of copy are prohibited.
The data contained herein are subject to variation without notice.

4EN i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
DOCUMENTS
DOCUMENTS ENCLOSED WITH THE UNIT
Each unit is delivered complete with the following documents:
• Air-conditioner installation - user and maintenance manual;
• Instruction manual for the microprocessor controller;
• Wiring diagram;
• List of spare parts;
• CE declaration with list of European directives and standards
that the unit is compliant with;
• Warranty conditions.
DIRECT EXPANSION UNIT CONFIGURATION
Option 1 MODELS
i-AX Direct expansion - air cooled
i-AW Direct expansion - water cooled
i-AD Dual Fluid - air cooled
i-AT Dual Fluid - water cooled
i-AF Free Cooling - water cooled
Option 2 AIR FLOW OOver Flow
UUnder Flow
Option 3 CAPACITY
12 12 kw
18 18 kw
20 20 kw
29 29 kw
50 50 kw
70 70 kw
90 90kw
130 130kw
10 150kw
Option 4 VERSION
BASIC BASIC units with EC fan speed control on the i-BRE/i- BDC
MOD i-AX_i-AD units with EC fan speed control function on the i-BRE/i-BDC and
AC fan speed control of the BRE/BDC
MOD.A i-AW_i-AT_i-AF_ units with EC fan speed control function on the i-BRE/i-BDC
and with AC fan speed control on the BRE/BDC
MOD.B i-AW_i-AT Units with condensing pressure control by pressure control valve
LT LT units for low outside temp. (-45°C) with EC fan speed control function on
the i-BRE and with AC fan speed control on the BRE/BDC
Description
Options
A X O 2 9 BASIC
Models Capacity
Version
GENERAL CHARACTERISTICS
DESCRIPTION OF THE UNIT
Ductable precision air-conditioners with capacities from 4 to 150
kW for vertical installation, cooling only, with the possibility of
electric or hot water post-heating, humidifier and dehumidifier
option for the precision control of the temperature-humidity
conditions. Ideal for air-conditioning technological environments,
server rooms and data processing centres, and technological
applications in general.The inverter-driven compressor allows the
capacity delivered by the unit to be modulated according to the
actual requirements of the load, ensuring high efficiency at part
loads, optimising power consumption and eliminating peak start-
up current.
The packaged precision air-conditioners operate with R410A
refrigerant and are suitable for indoor installation.
The units conform to the essential requisites established in EC
directive 2006/42/CE.
They are factory tested and on site installation is limited to the
refrigerant and electrical connections.
STRUCTURE
Base made from painted galvanised RAL7016 steel plate; frame
complete with service panels that allow the unit to operate cor-
rectly during maintenance operations.
The cosmetic panelling, coated with an innovative double layer of
plastic, is lined on the inside with special soundproofing material.

ENi-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF 5
COMPRESSORS
INVERTER-DRIVEN HERMETIC SCROLL and ON/OFF compres-
sors, complete with thermal protector. Fitted on rubber vibration
dampers and complete with oil charge.
FANS
EC RADIAL FAN, STANDARD VERSION
Fan with one-sided intake and backward curved blades, brushless
motor with electronic commutation for excellent performance in
terms of static pressure, low power consumption and reduced
noise. Speed control is modulating, set from the user terminal
based on the correct required static pressure setting.
In the STANDARD version with low residual pressure (20- 100
Pa) at rated flow.
EC RADIAL FAN, HP VERSION
Fan with one-sided intake and backward curved blades, brushless
motor with electronic commutation for excellent performance in
terms of static pressure, low power consumption and reduced
noise. Speed control is modulating, set from the user terminal
based on the correct required static pressure setting.
In the HP version with high residual pressure at rated flow.
FILTER
Pleated filters, supported by a frame, with protective metal mesh,
and regenerable polyester fibre filtering media treated with syn-
thetic resins. G2/G4 efficiency according to the CEN-EN 779
standard with average separation efficiency 90.1% ASHRAE (G4).
The filter is flame retardant
AIR HEAT EXCHANGER
Finned coil, large front surface, made from copper tubes expand-
ed mechanically onto aluminium fins with a high heat exchange
surface. Hydrophilic treatment to assist the drainage of conden-
sate.The coil, installed upstream of the fans for perfect air distrib-
ution, is fitted with a stainless steel pan with hose to drain the
condensate.
ELECTRICAL PANEL
Built and wired in compliance with the IEC 204-1/EN60204-1
standards, complete with contactor and overload protection for
the compressors and fans, disconnecting switch with door inter-
lock safety device.
CONTROL
The microprocessor, by managing the compressor activation
times, controls the cooling capacity and the operating alarms, with
the possibility of connection to supervisor systems.
AIR FLOW SENSOR
Activates an alarm in the event of insufficient air flow.
ELECTRIC POST-HEATING (versions R orT)
Finned aluminium heaters complete with safety thermostat to cut
off power and activate an alarm in the event of overheating.
The electric heaters are used to:
- Heat the air so as to reach the set point
- Reheat the air during dehumidification operation, bringing the
air temperature back to the set point
HEATING WITH HOT WATER COIL
The coil, complete with water circuit air vent valve, is located
downstream of the evaporator coil.
The option is supplied complete with modulating 3-way valve with
servomotor, managed by the EVOLUTION+ controller.
Finned coil heat exchanger made from copper tubes expanded
mechanically onto aluminium fins with high heat exchange area.
The hot water coil can either be an alternative to or in combina-
tion with the electric heaters, and is used to:
- Heat the air so as to reach the set point.
- Reheat the air during dehumidification operation, bringing the
air temperature back to the set point.
REHEATING WITH HOT GAS COIL
Available as an alternative to the hot water coil, this is placed
downstream of the evaporator coil, and is used during dehumidifi-
cation operation to reheat the air using some of the heat
exchanged at the condenser, bringing the temperature back to the
set point with CONSIDERABLE energy savings.
The option includes a finned coil heat exchanger made from cop-
per tubes expanded mechanically onto aluminium fins with high
heat exchange area, and an on/off valve managed by the EVOLU-
TION+ controller, which activates the reheating circuit.
The hot gas coil can be used in combination with the electric
heaters.
IMMERSED ELECTRODE HUMIDIFIER (versions H or T)
Modulating steam production and automatic control of the salt
concentration in the boiler to allow the use of untreated water.
MICROPROCESSOR CONTROL SYSTEM
For the control of the ambient parameters and the management
of the unit monitoring and control functions (compliant with EEC
directive 89/336).
DIRECT EXPANSION MODELS
HERMETIC SCROLL COMPRESSOR with high energy efficiency
and low noise level, and inbuilt thermal overload protection.
REFRIGERANT CIRCUIT including:
- liquid receiver;
- dewatering filter and flow indicator;
- electronic expansion valve;
- oil separator (in the circuit with inverter-driven compressor)
- external connections with cocks;
- low and high pressure switches (with manual reset).
WATER CONDENSER (water-cooled models) with braze welded
stainless steel plates.
AIR FLOW CONFIGURATION
O - OVER: air delivery versus top
U - UNDER: air delivery versus bottom
VERSIONS
BASIC air- or water-cooled units with EC fan speed
control function on i-BRE/i-BDC models
MOD - MOD.A air-cooled (MOD) or water-cooled units
(MOD.A) with EC fan speed control function on
i-BRE/i-BDC models and with AC fan speed con-
trol on BRE/BDC models
LT air-cooled units for low temperatures with EC
fan speed control function on i-BRE model and
AC fan speed control on BRE model
MOD.B water-cooled unit for applications with well
water, including condenser control with pressure
control valve

6EN i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
i-AX - air cooled i-AW - water cooled
REFRIGERANT CIRCUIT
All models have a single refrigerant circuit, and in some cases,
depending on the model, two circuits - 1 x ON/OFF + 1 x
INVERTER or 2 x ON/OFF + 1 x INVERTER (mod.130-150).
Each refrigerant circuit includes the compressor and an electronic
thermostatic valve to ensure stable superheat.
A liquid indicator is fitted before the thermostatic valve to show
gas charge. The refrigerant circuit is also fitted with an oil separa-
tor at the compressor discharge to ensure perfect compressor
lubrication, even at minimum speed. A dewatering filter is
installed on the liquid line so as to keep the circuit clean and free
of dirt. The refrigerant circuit features safety pressure switches
for both high and low pressure.
The low pressure switch has automatic reset, while for safety sea-
sons the high pressure switch requires manual reset. The com-
pressor pumps the hot refrigerant gas into the condenser.
The liquid refrigerant then flows to a liquid receiver (fitted with
safety valve) installed on the indoor unit, to ensure a constant
flow of refrigerant to the thermostatic valve and subsequently the
evaporator. Here the liquid refrigerant absorbs the heat from the
environment and changes state, becoming a gas, then returning to
the compressor: the cycle is then repeated.
The units are fitted with scroll compressors that feature non-
return valves to prevent liquid from migrating from the outdoor
condenser during summer, and unwanted refrigerant flow during
start-up.
AIR-COOLED DIRECT EXPANSION UNIT
- VERSION i-AX
The i-AX series units use air as the cooling fluid, and are there-
fore combined with an outdoor air-cooled condenser (supplied
separately). The BASIC version includes the condenser control
function with EC fan speed control in combination with i-BRE
remote condensers. The MODULATING version features speed
control for the fans on the BRE condenser, in this case axial-flow
fans with asynchronous motors, so as to maintain correct refrig-
erant condensing pressure.
The i-AX units are supplied with valves for closing and isolating
the refrigerant circuit and to assist service operations.
A second non-return valve, to be fitted by the installer at the con-
denser outlet on the liquid line, is recommended during operation
in winter, to prevent migration of the refrigerant charge from the
liquid receiver to the outdoor condenser, with consequent low
pressure alarms.
The i-AX units are supplied as standard with EC radial fans in the
standard version.
Outdoor air-cooled condenser
The indoor unit can be connected to different types of BRE (axi-
al-flow fans with asynchronous motor) and i-BRE outdoor con-
densers (axial-flow fans with EC motor), standard or low noise
version, and with special coil treatment.
For more specific information see the manual on the outdoor air-
cooled condensers.
Note 1: unit and outdoor condensers supplied separately
Note 2: the indoor unit is delivered charged with nitrogen at
near-atmospheric pressure.
The outdoor condenser, on the other hand, is supplied pres-
surised with dry air (around 3 bars)
Note 3: the customer is responsible for properly making the
connections between the indoor and outdoor units, as clearly
described in this manual, and for ensuring the required gas and oil
charge, where necessary.
WATER-COOLED DIRECT EXPANSION UNIT
- VERSION i-AW
The i-AW series units use water as the cooling fluid, therefore
each refrigerant circuit is combined with a plate heat exchanger
installed on the unit, suitably sized to ensure minimum water side
pressure drop and consequently reduce the power consumption
of the water pump.
Remember that the units are supplied without the system circu-
lating pump.
The i-AW units are supplied as standard with EC radial fans in the
standard version.
Water-cooled condenser
The units are fitted with an internal braze welded stainless steel
plate heat exchanger.
The units for applications with well water are supplied with a
pressure control valve to manage the condensing pressure.
This circuit works with primary water or with a closed circuit
connected to an outdoor dry cooler or cooling tower.
For “closed” circuits, it’s recommended to use water mixed with
antifreeze to prevent ice from forming in winter and consequently
damaging the system: see the installation manual for the calcula-
tion of the percentage of antifreeze to use.
The BDC (axial-flow fans with asynchronous motor) and i-BDC
Dry Coolers (axial-flow fans with EC motor) are supplied as stan-
dard accessories.
The antifreeze and fluid circulating pump are generally supplied by
other manufacturers.
For “open” circuits mechanical filters must be used to trap impu-
rities and prevent blockage of the braze-welded plate heat
exchanger.
To reduce energy consumption (pump), it’s suggested to use a
valve to close the circuit when the indoor unit is off.
Note 1: the i-AW water-cooled indoor units come with the
refrigerant circuit completely charged and factory-tested before
delivery.

ENi-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF 7
i-AF - water cooled i-AD - air cooled
FREECOOLING UNITS – VERSION i-AF
The i-AF series units, in favourable outside conditions, can use the
cooling water to maintain the set environmental conditions with-
out the need for mechanical cooling using the compressor, or to
reduce the cooling load.
The i-AF series units use water as the cooling fluid, therefore
each refrigerant circuit is combined with a plate heat exchanger
installed on the unit, suitably sized to ensure minimum water side
pressure drop and consequently reduce power consumption of
the water pump.
The i-AF units are fitted as standard with EC radial fans in the
standard version.
Water-cooled condenser
Each unit is fitted with one (single-circuit units) or two (two-cir-
cuit units) braze welded stainless steel plate condensers.
Each refrigerant circuit features an automatic bypass valve to con-
trol minimum condensing pressure during operation in FC mode.
The units generally work in closed circuits, with outdoor dry
coolers, cooled by the outside air.
To avoid ice formation, it’s recommended to always use a glycol
mixture as the fluid inside the closed circuit, in the percentages
described in this manual based on the average minimum tempera-
ture reached in the installation site in winter.
The BDC (axial-flow fans with asynchronous motor) and i-BDC
Dry Coolers (axial-flow fans with EC motor) are supplied as stan-
dard accessories.
The antifreeze and fluid circulating pump are generally supplied by
other manufacturers.
For “open” circuits mechanical filters must be used to trap impu-
rities and prevent blockage of the braze-welded plate heat
exchanger.
To reduce energy consumption (pump), it’s suggested to use a
valve to close the circuit when the indoor unit is off.
Water circuit
The unit is fitted with a modulating 3-way valve to control the
flow of cooling fluid to the indoor heat exchanger for freecooling.
The opening and closing signal is generated and managed com-
pletely by the electronic controller on the air-conditioner so as to
maintain the desired conditions and ensure maximum energy sav-
ings.
DUAL FLUID UNITS – VERSION i-AD (air-cooled) &
i-AT (water-cooled )
The i-AD and i-AT series units feature two different cooling sys-
tems, which cannot be active at the same time.
One primary chilled water system (CW) provided by a chiller
installed on site, and a secondary direct expansion system (DX),
which also acts as backup.
The activation set points of these two circuits can be seen in the
User terminal manual.
The i-AD units are fitted as standard with EC radial fans in the
standard version.
Version i-AD (air-cooled)
The i-AX series units use air as the cooling fluid, and are there-
fore combined with an outdoor air-cooled condenser (supplied
separately).
The STD version includes the condenser control function with
EC fan speed control in combination with i-BRE remote con-
densers.
The MODULATING version features condenser fan speed con-
trol, so as to maintain correct refrigerant condensing pressure.
The i-AD units are supplied with valves for closing and isolating
the refrigerant circuit and to assist service operations.
A second non-return valve, to be fitted by the installer at the con-
denser outlet on the liquid line, is recommended during operation
in winter, to prevent migration of the refrigerant charge from the
liquid receiver to the outdoor condenser, with consequent low
pressure alarms.
Outdoor air-cooled condenser
The indoor unit can be connected to different types of BRE (axi-
al-flow fans with asynchronous motor) and i-BRE outdoor con-
densers (axial-flow fans with EC motor), standard or low noise
version, and with special coil treatment.
For more specific information see the manual on the outdoor air-
cooled condensers.
Note 1: unit and outdoor condensers supplied separately
Note 2: the indoor unit is delivered charged with nitrogen at
near-atmospheric pressure.
The outdoor condenser, on the other hand, is supplied pres-
surised with dry air (around 3 bars)
Note 3: the customer is responsible for properly making the
connections between the indoor and outdoor units, as clearly
described in this manual, and for ensuring the required gas and oil
charge, where necessary.
Water circuit
The unit is fitted with a modulating 3-way valve to control the
flow of cooling fluid to the indoor heat exchanger and maintain
the desired conditions.

8EN i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
i-AT - water cooled
Version i-AT (water-cooled)
The i-AT series units use water as the cooling fluid, therefore
each refrigerant circuit is combined with a plate heat exchanger
installed on the unit, suitably sized to ensure minimum water side
pressure drop and consequently reduce the power consumption
of the water pump.
Remember that the units are supplied without the system circu-
lating pump.
The i-AT units are fitted as standard with EC radial fans in the
standard version.
Water-cooled condenser
Each unit is fitted with one (single-circuit units) or two (two-cir-
cuit units) braze welded stainless steel plate condensers.
The units for applications with well water are supplied with a
pressure control valve for managing the condensing pressure.
The units generally work in closed circuits, with outdoor dry
coolers, cooled by the outside air.
To avoid ice formation, it’s recommended to always use a glycol
mixture as the fluid inside the closed circuit, in the percentages
described in this manual according to the average minimum tem-
perature reached in the installation site in winter.
The BDC (axial-flow fans with asynchronous motor) and i-BDC
Dry Coolers (axial-flow fans with EC motor) are supplied as
standard accessories.
The antifreeze and fluid circulating pump are generally supplied by
other manufacturers.
For “open” circuits mechanical filters must be used to trap impu-
rities and prevent blockage of the braze-welded plate heat
exchanger.
To reduce energy consumption (pump), it’s suggested to use a
valve to close the circuit when the indoor unit is off.
Water circuit
The unit is fitted with a modulating 3-way valve to control the
flow of cooling fluid to the indoor heat exchanger and maintain
the desired conditions.
Remember that the units are supplied without the system circu-
lating pump..

AIR FLOWS
ENi-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF 9
The i-ACCURATE air-conditioners are available in different
configurations, based on the air intake and outlet positions; the
main distinction is between OVER and UNDER units.
The versions defined as OVER with air outlet from the top gen-
erally have the air intake at the front, rear and/or from the bot-
tom, as required by the customer, and the air outlet from the top
of the unit, in ducts, false-ceilings, or from outlet plenums at the
front.
fig. 1 fig. 2
fig. 3 fig. 4
1OVER units with intake from the front and outlet plenum 2OVER units with intake from the front and outlet from the top
3OVER units with intake from under the floor and outlet
from the top
4
OVER units with intake from the rear and outlet from the top.
(not available on models 130-150, use base moulding with
grills)
5UNDER units with intake from the top and front outlet
plenum.
6UNDER units with intake from the top and outlet under
the floor
The versions defined as UNDER with air outlet from under the floor have the air intake through the top of the unit directly from the envi-
ronment, or via ducts and/or intake plenums.
fig. 5
fig. 6
i-AXO - i-AWO - i-ADO
i-ATO - i-AFO
i-AXU - i-AWU - i-ADU
i-ATU - i-AFU

RATING PLATE
10 EN i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
The air-conditioner rating plate is positioned on a panel inside the
unit, and provides the following information:
- Model and serial number of the unit;
- Power supply (voltage, phases and frequency);
- Power input of the unit and the individual components;
- Current input of the unit and the individual components: OA
(Operating current), FLA (Full load current) and LRA (Locked
rotor current);
- Settings of the pressure switches in the refrigerant circuit (HP
and LP);
- Type of refrigerant (R410A);
- Charge or pre-charge in each refrigerant circuit (i-AW - i-AT -
i-AF )
TECHNICAL DATA
Mod.151 rev.03
Type
Modello
Model
Modèle
Modelo
Typ
Item
Articolo
Einzelteil
Article
Artículo
Produktkodning
Serial number
Matricola unità
Seriennummer
Matricule unité
Matricula unidad
Serienummer
Manufact. year
Anno di costruz.
Baujahr
Année construction
Año de costrucción
Tillverkningsår
Operating weight
Peso in funzionam.
Betriebsgewicht
Poids en fonction.
Peso en funcionam
Driftsvikt
Refrigerant
Gas refrigerante
Kältemittel
Gaz réfrigérant
Gas refrigerante
Köldmedium
Refr. charge
Carica refrigerante
Füllgewicht
Q.té gaz réfrig.
Carga refrigerante
Köldmediefyllning
ELECTRICAL SUPPLY
Auxiliary
Main
F.L.I. kW
F.L.A. A
L.R.A. A
MAXIMUM ALLOWABLE PRESSURE (PS)
Gas circuit:
HP= MPa LP= MPa
Water circuit:
MPa
Maximum transport and storage temperature: °C
Manual n°:
Wiring Diagrams: rev.
36061 BASSANO DEL GRAPPA (VI)
ITALIA - via SARSON, 57/C
Tel.[phone] Fax[phone]
e-mail: [email protected]
1 - Inside air 24°C-50%, Cond. temperature 45°C - ESP 20 Pa
5 - measured at a height of 1.5 m and 2 m from the front of the unit in free field
ACCURATE - i-AX Air-cooled direct expansion unit
Model 12 18 20 29 50 70 90 130 150
Frame F2 F3 F4 F5 F6 F7
No. of circuits / no. of compressors 1/1 1/1 1/1 1/1 1/1 2/2 2/2 2/3 2/3
Refrigerant R410A R410A R410A R410A R410A R410A R410A R410A R410A
Rated air flow-rate mc/h 3500 4900 6500 8000 13500 19000 25000 30000 30000
Power supply V/Ph/Hz 230/1/50 400/3N/50
CAPACITY DELIVERED
Maximum speed
Gross total capacity (1) kW 11,1 16,60 19,32 28,07 55,00 70,20 86,50 135,9 151,8
Gross sensible capacity (1) kW 10,6 16,60 19,32 28,07 51,10 68,10 85,50 116,2 124,1
SHR (1) 0,95 1,00 1,00 1,00 0,93 0,97 0,99 0,86 0,82
Compressor power consumption kW 2,54 4,09 4,44 7,14 13,20 15,80 20,30 30,80 35,00
Power cons. with std. EC radial fans kW 0,35 0,84 1,35 1,80 3,20 4,50 6,10 - -
Power cons. with HP EC radial fans kW 0,27 0,47 0,89 1,51 3,13 5,11 6,72 6,90 6,90
Minimum speed
Gross total capacity (1) kW 4,34 6,27 7,24 10,62 25,39 23,60 24,30 24,70 24,70
Gross sensible capacity (1) kW 4,34 6,27 7,24 10,62 25,39 23,60 24,30 24,70 24,70
SHR (1) 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
Compressor power consumption kW 0,88 1,24 1,33 1,96 4,31 4,40 4,30 4,60 4,60
Power supply V/Ph/Hz n.a 460/3/60 - 380/3/60
CAPACITY DELIVERED
Maximum speed
Gross total capacity (1) kW / 16,6 19,3 28,1 55,0 71,5 84,9 139,0 147,7
Gross sensible capacity (1) kW / 16,6 19,3 28,1 51,1 68,7 83,8 117,6 121,9
SHR (1) / 1,00 1,00 1,00 0,93 0,96 0,99 0,85 0,82
Compressor power consumption kW / 4,09 4,44 7,14 13,20 16,29 19,83 31,94 33,97
Power cons. with std. EC radial fans kW / 0,84 1,35 1,80 3,20 4,50 6,10 - -
Power cons. with HP EC radial fans kW / 0,47 0,89 1,51 3,13 5,11 6,72 6,90 6,90
Minimum speed
Gross total capacity (1) kW / 6,27 7,24 10,62 25,39 23,60 24,30 24,70 24,70
Gross sensible capacity (1) kW / 6,27 7,24 10,62 25,39 23,60 24,30 24,70 24,70
SHR (1) / 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
Compressor power consumption kW / 1,24 1,33 1,96 4,31 4,40 4,30 4,60 4,60
FANS
No. of std. EC radial fans 2 2 1 1 2 3 3 - -
No. of HP EC radial fans 2 2 1 1 2 3 4 3 3
Sound pressure level (5) dB(A) 49 53 56 60 64 67 67 69 69
REFRIGERANT CONNECTIONS
Refrigerant connections (ODS Ø) IN - LIQ 12 12 16 16 16 16 18 22 22
OUT-GAS 12 18 22 22 22 22 22 35 35
HUMIDIFIER
Capacity kg/h 3 5 5 5 5 8 8 8 8
ELECTRIC HEATERS
Steps 3 3 3 3 3 3 3 3 3
Heating capacity kW 4 8 9 9 15 18 18 24 24
DIMENSIONS
Length mm 1000 1000 1550 2100 2650 2650
Depth mm 500 790 790 790 790 890
Height mm 1980 1980 1980 1980 1980 2180
OUTDOOR UNIT COMBINATIONS
i-BRE remote condenser 014m 027m 027m 044m 065m 100b 116b 190b 190b
BRE remote condenser 014m 027m 027m 044m 065m 100b 116b 190b 190b
TECHNICAL DATA

ENi-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF 11
*WARNING,THE DIAMETERS OF THE CONNECTION LINES BETWEEN THE INDOOR UNIT AND DRY COOLER MUST BE SIZED
BY THE INSTALLER BASED ON THE INSTRUCTIONS SHOWN IN THE PARAGRAPH ON WATER CONNECTIONS
1 - Inside air 24°C-50%, water 30-35°C - ESP 20 Pa
5 - measured at a height of 1.5 m and 2 m from the front of the unit in free field
ACCURATE - i-AW Water-cooled direct expansion unit
Model 12 18 20 29 50 70 90 130 150
Frame F2 F3 F4 F5 F6 F7
No. of circuits / no. of compressors 1/1 1/1 1/1 1/1 1/1 2/2 2/2 2/3 2/3
Refrigerant R410A R410A R410A R410A R410A R410A R410A R410A R410A
Rated air flow-rate mc/h 3500 4900 6500 8000 13500 19000 25000 30000 30000
Power supply V/Ph/Hz 230/1/50 400/3N/50
CAPACITY DELIVERED
Maximum speed
Gross total capacity (1) kW 11,7 17,4 20,46 29,3 56,72 73,90 93,30 142,5 159,1
Gross sensible capacity (1) kW 10,9 17 25,41 28,6 51,52 70,20 90,50 118,9 127,6
SHR (1) 0,93 0,98 1,24 0,98 0,91 0,95 0,97 0,83 0,80
Compressor power consumption kW 2,12 3,68 3,86 6,38 12,08 13,60 18,60 27,60 31,70
Assorbimento con vent.radiali EC BASE kW 0,35 0,84 1,35 1,80 3,20 4,50 6,10 - -
Power cons. with HP EC radial fans kW 0,27 0,47 0,89 1,51 3,13 5,11 6,72 6,90 6,90
Minimum speed
Gross total capacity (1) kW 4,78 7,27 7,88 12,33 27,30 25,30 27,90 27,50 27,50
Gross sensible capacity (1) kW 4,78 7,27 7,88 12,33 27,30 25,30 27,90 26,70 26,70
SHR (1) 1,00 1,00 1,00 1,00 1,00 1,00 1,00 0,97 0,97
Compressor power consumption kW 0,61 1,24 1,11 1,96 3,20 3,30 3,00 3,30 3,30
Power supply V/Ph/Hz n.a 460/3/60 - 380/3/60
CAPACITY DELIVERED
Maximum speed
Gross total capacity (1) kW / 17,4 20,5 29,3 56,7 75,0 92,4 145,2 154,4
Gross sensible capacity (1) kW / 17,0 20,4 28,6 51,5 70,7 89,4 120,1 125,9
SHR (1) / 0,98 1,00 0,98 0,91 0,94 0,97 0,83 0,82
Compressor power consumption kW / 3,68 3,86 6,38 12,08 14,16 17,71 28,78 30,92
Power cons. with std. EC radial fans kW / 0,84 1,35 1,80 3,20 4,50 6,10 - -
Power cons. with HP EC radial fans kW / 0,47 0,89 1,51 3,13 5,11 6,72 6,90 6,90
Minimum speed
Gross total capacity (1) kW / 7,27 7,88 12,32 27,28 25,07 27,91 27,47 27,46
Gross sensible capacity (1) kW / 7,27 7,88 12,32 27,28 25,07 27,91 26,67 26,65
SHR (1) / 1,00 1,00 1,00 1,00 1,00 1,00 0,97 0,97
Compressor power consumption kW / 0,96 1,11 1,43 3,20 3,45 2,98 3,26 3,26
FANS
No. of std. EC radial fans 2 2 1 1 2 3 3 - -
No. of HP EC radial fans 2 2 1 1 2 3 4 3 3
Sound pressure level (5) dB(A) 49 53 56 60 64 67 67 69 69
PLATE CONDENSER
Type AISI316 plate heat exchanger
Number 1 1 1 1 1 2 1 1 1
Water content 0,8 3,9 2,5 3 5 2x3,8 8,5 12 12
Water flow-rate (1) 2400 3650 4200 6180 11900 15200 19400 29500 33000
Pressure drop Dp (1) 1 6 10 23 54 26 36 27 39
REFRIGERANT CONNECTIONS
Condenser water connections * IN 1" 1/4 M 1" 1/4 M 1" 1/4 M 1" 1/4 M 1" 1/4 M 1" 1/4 M 2"M 2" 1/2M 2" 1/2M
OUT 1" 1/4 M 1" 1/4 M 1" 1/4 M 1" 1/4 M 1" 1/4 M 1" 1/4 M 2"M 2" 1/2M 2" 1/2M
HUMIDIFIER
Capacity kg/h 3 5 5 5 5 8 8 8 8
ELECTRIC HEATERS
Steps 3 3 3 3 3 3 3 3 3
Heating capacity kW 4 8 9 9 15 18 18 24 24
DIMENSIONS
Length mm 1000 1000 1550 2100 2650 2650
Depth mm 500 790 790 790 790 890
Height mm 1980 1980 1980 1980 1980 2180
OUTDOOR UNIT COMBINATIONS
i-BDC remote condenser 030m 030m 030m 039m 062m 092m 123m 190m 190m
BDC remote condenser 030m 030m 030m 039m 062m 092m 123m 190m 190m

12 EN i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
*WARNING,THE DIAMETERS OF THE CONNECTION LINES BETWEEN THE INDOOR UNIT AND DRY COOLER MUST BE SIZED
BY THE INSTALLER BASED ON THE INSTRUCTIONS SHOWN IN THE PARAGRAPH ON WATER CONNECTIONS
1 - Inside air 24°C-50%, water 30-35°C - ESP 20 Pa
2 - inlet water 10°C and same flow-rate as calculated for DX operation - ESP 20 Pa
5 - measured at a height of 1.5 m and 2 m from the front of the unit in free field
ACCURATE - i-AF Water-cooled direct expansion unit with indirect free cooling
Model 20 29 50 70 90 130
Frame F3 F4 F5 F6 F7
No. of circuits / no. of compressors 1/1 1/1 1/1 2/2 2/2 2/3
Refrigerant R410A R410A R410A R410A R410A R410A
Rated air flow-rate mc/h 6500 8000 13500 19000 25000 28000
Power supply V/Ph/Hz 400/3N/50
CAPACITY DELIVERED
Maximum speed
Gross total capacity (1) kW 19,37 28,58 55,10 72,90 94,50 130,2
Gross sensible capacity (1) kW 19,37 28,35 51,00 69,20 87,10 111,1
SHR (1) 1,00 0,99 0,93 0,95 0,92 0,85
Compressor power consumption kW 4,01 6,15 12,20 13,80 19,10 27,40
Power cons. with std. EC radial fans kW 1,35 1,80 3,20 4,50 6,10 -
Power cons. with HP EC radial fans kW 0,89 1,51 3,13 5,11 6,72 6,90
Water flow-rate (1) l/h 4050 6020 11600 15000 19600 27300
Pressure drop Dp (1) kPa 25 36 83 62 99 75
Minimum speed
Gross total capacity (1) kW 7,75 12,42 24,60 22,70 24,40 26,10
Gross sensible capacity (1) kW 7,75 12,42 24,60 22,70 22,50 25,60
SHR (1) 1,00 1,00 1,00 1,00 0,92 0,98
Compressor power consumption kW 1,00 1,49 3,30 3,40 3,40 3,30
Power supply V/Ph/Hz 460/3/60 - 380/3/60
CAPACITY DELIVERED
Maximum speed
Gross total capacity (1) kW 19,37 28,58 55,10 74,01 93,5 133,38
Gross sensible capacity (1) kW 19,37 28,35 51,00 69,69 86,24 113,09
SHR (1) 1,00 0,99 0,93 0,94 0,92 0,85
Compressor power consumption kW 4,01 6,15 12,20 14,37 18,34 28,51
Power cons. with std. EC radial fans kW 1,35 1,80 3,20 4,50 6,10 -
Power cons. with HP EC radial fans kW 0,89 1,51 3,13 5,11 6,72 6,90
Minimum speed
Gross total capacity (1) kW 7,75 12,42 24,63 22,70 24,51 26,10
Gross sensible capacity (1) kW 7,75 12,42 24,30 22,70 22,52 25,60
SHR (1) 1,00 1,00 0,99 1,00 0,92 0,98
Compressor power consumption kW 1,00 1,49 3,29 3,38 3,31 3,30
CAPACITY DELIVERED IN FREE COOLING MODE
Gross total capacity (2) kW 20,02 25,1 43,8 58,1 78,26 104,88
Gross sensible capacity (2) kW 19,58 25,1 43,8 58,1 78,26 94,21
SHR 0,98 1,00 1,00 1,00 1,00 0,90
Pressure drop in FC operation kPa 20 66 123 122 137 132
Total water content l3611,8 19,1 26,8 32,5 47,8
FANS
No. of std. EC radial fans 11233-
No. of HP EC radial fans 112343
Sound pressure level (5) dB(A) 56 60 64 67 67 69
PLATE CONDENSER
Type AISI316 plate heat exchanger
Number 111211
Water content 2,5 3 5 2x3,8 8,5 12
CONNECTIONS
Water connections * IN 1"1/2 F 1"1/2 F 1"1/2 F 2" F 2" F 2" F
OUT 1"1/4 M 1"1/4 M 1"1/4 M 1"1/4 M 2" M 2"1/2 M
HUMIDIFIER
Capacity kg/h 555888
ELECTRIC HEATERS
Steps 333333
Heating capacity kW 9 9 15 18 18 24
DIMENSIONS
Length mm 1000 1550 2100 2650 2650
Depth mm 790 790 790 790 890
Height mm 1980 1980 1980 1980 2180
OUTDOOR UNIT COMBINATIONS
i-BDC remote condenser 030m 039m 062m 092m 123m 190m
BDC remote condenser 030m 039m 062m 092m 123m 190m

ENi-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF 13
*WARNING,THE DIAMETERS OF THE CONNECTION LINES BETWEEN THE INDOOR UNIT AND DRY COOLER MUST BE SIZED
BY THE INSTALLER BASED ON THE INSTRUCTIONS SHOWN IN THE PARAGRAPH ON WATER CONNECTIONS
1 - Inside air 24°C-50%, Cond. temperature 45°C - ESP 20 Pa
4 - air 24°C-50%, water 7-12 °C - ESP 20 Pa
5 - measured at a height of 1.5 m and 2 m from the front of the unit in free field
ACCURATE - i-AD Air-cooled direct expansion unit
Model 20 29 50 70 90 130
Frame F3 F4 F5 F6 F7
No. of circuits / no. of compressors 1/1 1/1 1/1 2/2 2/2 2/3
Refrigerant R410A R410A R410A R410A R410A R410A
Rated air flow-rate mc/h 6500 8000 13500 19000 25000 28000
Power supply V/Ph/Hz 400/3N/50
CAPACITY DELIVERED
Maximum speed
Gross total capacity (1) kW 18,89 27,50 53,24 69,10 91,4 124,4
Gross sensible capacity (1) kW 18,89 27,50 50,21 67,40 83,0 108,7
SHR (1) 1,00 1,00 0,94 0,98 0,91 0,87
Compressor power consumption kW 4,26 6,83 13,42 16,10 20,90 30,80
Power cons. with std. EC radial fans kW 1,35 1,80 3,20 4,50 6,10 -
Power cons. with HP EC radial fans kW 0,89 1,51 3,13 5,11 6,72 6,90
Minimum speed
Gross total capacity (1) kW 7,2 11,31 22,7 20,90 22,50 23,90
Gross sensible capacity (1) kW 7,2 11,31 22,7 18,80 21,70 23,90
SHR (1) 1,00 1,00 1,00 0,90 0,96 1,00
Compressor power consumption kW 1,28 2,05 4,47 4,52 4,43 4,58
Power supply V/Ph/Hz 460/3/60 - 380/3/60
CAPACITY DELIVERED
Maximum speed
Gross total capacity (1) kW 18,89 27,50 53,24 70,34 89,54 127,07
Gross sensible capacity (1) kW 18,89 27,50 50,21 68,15 85,03 110,13
SHR (1) 1,00 1,00 0,94 0,97 0,95 0,87
Compressor power consumption kW 4,26 6,83 13,42 16,64 20,46 31,81
Power cons. with std. EC radial fans kW 1,35 1,80 3,20 4,50 6,10 -
Power cons. with HP EC radial fans kW 0,89 1,51 3,13 5,11 6,72 6,90
Minimum speed
Gross total capacity (1) kW 7,2 11,31 22,7 20,90 22,50 23,90
Gross sensible capacity (1) kW 7,2 11,31 22,7 18,80 21,70 23,90
SHR (1) 1,00 1,00 1,00 0,90 0,96 1,00
Compressor power consumption kW 1,28 2,05 4,47 4,52 4,43 4,58
CAPACITY DELIVERED (CW)
Gross total capacity (4) kW 24,3 29,5 51,4 67,6 91,0 125,7
Gross sensible capacity (4) kW 20,1 27,6 47,5 64,5 85,0 98,5
SHR 0,82 0,94 0,92 0,95 0,93 0,78
Water flow-rate (4) l/h 4190 5560 8820 11600 15610 21620
Total unit pressure drop (4) kPa 30 35 46 26 53 68
Water content l99 14 19 24 30
FANS
No. of std. EC radial fans 1 1 2 3 3 -
No. of HP EC radial fans 1 1 2 3 4 3
Sound pressure level (5) dB(A) 56 60 64 67 67 69
CONNECTIONS
Refrigerant connections (ODS Ø) IN - LIQ 16 16 16 16 18 22
OUT-GAS 22 22 22 22 22 35
Water connections * IN 1"1/2 F 1"1/2 F 1"1/2 F 2" F 2" F 2" F
OUT 1" F 1" F 1" F 1"1/2 F 1"1/2 F 1"1/2 F
ELECTRIC HEATERS
Steps 3 3 3 3 3 3
Heating capacity kW 9 9 15 18 18 24
DIMENSIONS
Length mm 1000 1550 2100 2650 2650
Depth mm 790 790 790 790 890
Height mm 1980 1980 1980 1980 2180
OUTDOOR UNIT COMBINATIONS
i-BRE remote condenser 027m 044m 065m 100b 116b 190b
BRE remote condenser 027m 044m 065m 100b 116b 190b

14 EN i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
1 - air 24°C-50%, water 30-35°C - ESP 20Pa
4 - air 24°C-50%, water 7-12°C - ESP 20Pa
5 - measured at a height of 1.5 m and 2 m from the front of the unit in free field
* PAY ATTENTIONS: PIPELINE DIMENSIONS MUST BE CALCULATED FROM INSTALLED LOCALLY,
FOLLOWING THE INSTRUCTION ON WATER CONNECTIONS PARAGRAPHS
ACCURATE - i-AT Water-cooled direct expansion unit
Model 20 29 50 70 90 130
Frame F3 F4 F5 F6 F7
No. of circuits / no. of compressors 1/1 1/1 1/1 2/2 2/2 2/3
Refrigerant R410A R410A R410A R410A R410A R410A
Rated air flow-rate mc/h 6500 8000 13500 19000 25000 28000
Power supply V/Ph/Hz 400/3N/50
CAPACITY DELIVERED
Maximum speed
Gross total capacity (1) kW 19,37 28,58 55,10 72,90 94,50 130,2
Gross sensible capacity (1) kW 19,37 28,35 51,00 69,20 87,10 111,1
SHR (1) 1,00 0,99 0,93 0,95 0,92 0,85
Compressor power consumption kW 4,01 6,15 12,20 13,80 19,10 27,40
Power cons. with std. EC radial fans kW 1,35 1,80 3,20 4,50 6,10 -
Power cons. with HP EC radial fans kW 0,89 1,51 3,13 5,11 6,72 6,90
Water flow-rate (1) l/h 4050 6020 11600 15000 19700 27300
Pressure drop Dp (1) kPa 13 22 30 26 35 29
Minimum speed
Gross total capacity (1) kW 7,75 12,42 24,60 22,70 24,40 26,10
Gross sensible capacity (1) kW 7,75 12,42 24,60 22,70 22,50 25,60
SHR (1) 1,00 1,00 1,00 1,00 0,92 0,98
Compressor power consumption kW 1,00 1,49 3,30 3,40 3,40 3,30
Power supply V/Ph/Hz 460/3/60 - 380/3/60
CAPACITY DELIVERED
Maximum speed
Gross total capacity (1) kW 19,37 28,58 55,10 74,01 93,5 133,38
Gross sensible capacity (1) kW 19,37 28,35 51,00 69,69 86,24 113,09
SHR (1) 1,00 0,99 0,93 0,94 0,92 0,85
Compressor power consumption kW 4,01 6,15 12,20 14,37 18,34 28,51
Power cons. with std. EC radial fans kW 1,35 1,80 3,20 4,50 6,10 -
Power cons. with HP EC radial fans kW 0,89 1,51 3,13 5,11 6,72 6,90
Water flow-rate (1) l/h 4050 6020 11600 15000 19700 27300
Pressure drop Dp (1) kPa 13 22 30 26 35 29
Minimum speed
Gross total capacity (1) kW 7,75 12,42 24,60 22,70 24,40 26,10
Gross sensible capacity (1) kW 7,75 12,42 24,60 22,70 22,50 25,60
SHR (1) 1,00 1,00 1,00 1,00 0,92 0,98
Compressor power consumption kW 1,00 1,49 3,30 3,40 3,40 3,30
CAPACITY DELIVERED (CW)
Gross total capacity (4) kW 24,3 29,5 51,4 67,6 91,0 125,7
Gross sensible capacity (4) kW 20,1 27,6 47,5 64,5 85,0 98,5
SHR 0,82 0,94 0,92 0,95 0,93 0,78
Water flow-rate (4) l/h 4190 5560 8820 11600 15610 21620
Total unit pressure drop (4) kPa 30 35 46 26 53 68
Water content l 9 9 14 19 24 30
FANS
No. of std. EC radial fans 11233-
No. of HP EC radial fans 112343
Sound pressure level (5) dB(A) 56 60 64 67 67 69
CONNECTIONS
Condenser water connections * IN 1" 1/4 M 1" 1/4 M 1" 1/4 M 1" 1/4 M 2"M 2" 1/2M
OUT 1" 1/4 M 1" 1/4 M 1" 1/4 M 1" 1/4 M 2"M 2" 1/2M
Water connections * IN 1"1/2 F 1"1/2 F 1"1/2 F 2" F 2" F 2" F
OUT 1" F 1" F 1" F 1"1/2 F 1"1/2 F 1"1/2 F
HUMIDIFIER
Capacity kg/h 555888
ELECTRIC HEATERS
Steps 333333
Heating capacity kW 9 9 15 18 18 24
DIMENSIONS
Length mm 1000 1550 2100 2650 2650
Depth mm 790 790 790 790 890
Height mm 1980 1980 1980 1980 2180
OUTDOOR UNIT COMBINATIONS
i-BDC remote condenser 030m 039m 062m 092m 123m 190m

ENi-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF 15
ACCESSING THE MAIN COMPONENTS
The air-conditioner is accessible from all sides by removing the
various panels.The front and/or side panels are opened in 2 differ-
ent ways:
FRONT PANELS
All the front panels are hinged and fitted with locking latches and
seal. All the front panels are opened and closed using a tool (typi-
cally a screwdriver) to open and close the latches.
Once the latches have been opened, the front panels can be
swung open and then removed vertically to simplify the service
operations on the air-conditioner, especially where there is little
space available. Opening the front panels provides access to all
the components in the air-conditioner involved in routine mainte-
nance.The number of front panels depends on the capacity of the
air-conditioner.
SIDE PANELS
All the side panels are accessible and removable.
Nonetheless, these do not need to be removed for routine main-
tenance operations.This means that, if necessary, a series of units
can be installed next to each other.
The side panels are fastened by screws.
These are accessible directly on the side panel by removing the
black plastic caps.
BACK PANELS
Fastened by normal self-tapping screws, these are not accessible
as when installed the back of the unit is against the wall
INSIDE PANELS
The compartment that contains the fans and the heaters is pro-
tected and insulated by a metal plate.
This is for safety reasons, so as to not have to shut the unit down
during normal maintenance operations.
WARNING: before restarting the air-conditioner, always
check that all the panels have been correctly replaced.
D
electrical panel
HOT GAS REHEATING COILS
(1) Operating conditions: Air 24°C/50% RH - Condensing temperature 45 °C
4 - water IN / OUT 70°C/60°C, air 20°C 6 - water IN / OUT 45°C/40°C, air 20°C
HOT WATER RE-HEATING
Post reheating system by mean hot water, composed by finned coil with copper tubes, 3 way valve and actuator driven with the logic imple-
mented in EVOLUTION+ controller
PERFORMANCE
Frame F2 F3 F4 F5 F6 F7
Modello 12 18 20 29 50 70 90 130 150
Heating Capacity (4) kW 16,4 20,2 14,4 16,1 28,7 39,3 41,6 41,1 41,1
Water Flow (4) l/h 1410 1780 1240 1410 2520 3450 3570 3610 3610
Total pressure drops (4) kPa 19 30 15 19 46 40 27 27,00 27,00
Heating Capacity (6) kW 8,1 9,9 7 7,9 14,1 19,3 20,5 20,3 20,3
Water Flow (6) l/h 1386 1730 1210 1370 2460 3350 3560 3530 3530
Total pressure drops (6) kPa 19 29 15 19 47 39 28 27 27
Water connections inch 1/2 1/2 1/2 1/2 3/4 3/4 1 1 1
PERFORMANCE
Frame F2 F3 F4 F5 F6 F7
Models 12 18 20 29 50 70 90 130 150
Type ON/OFF ON/OFF ON/OFF ON/OFF ON/OFF ON/OFF
Heating Capacity (1) kW 10,1 8,4 9,3 16,2 22,6 26,3 30,5

TRANSPORT AND HANDLING
16 EN i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
Move the air-conditioner, which must not be reclined or tipped
over, nor exposed to the elements, as near as possible to the site
of installation before removing the packaging and the pallet.
The units can be lifted:
- using a forklift, sliding the forks through the openings in the pal-
let;
- using fabric slings underneath the unit, making sure that when
the slings are in tension these do not apply pressure on the top
edges.
The air-conditioner must be stored indoors, preferably in its own
packaging, and protected against excessive humidity (<85% RH)
and temperature (> -20°C , < 50°C).
L
H
PP
H
L
The symbols shown on the packaging are compliant with the ISO 7000 standard; the meaning of the symbols is shown in the table.
FRAGILE: handle with care.
KEEP DRY: indicates that the packaged unit
must be kept in a dry place.
CENTRE OF GRAVITY: indicates the
centre of gravity of the packaged unit.
KEEP AWAY FROM HEAT: indicates
that the packaged unit must be kept
away from sources of heat.
THIS SIDE UP: indicates the correct position
of the packaged unit.
TEMPERATURE LIMITS: indicates the
temperature limits for storing and handling the
packaged unit.
USE NO HOOKS: indicates that hooks cannot
be used to handle or lift the packaged unit.
DO NOT STACK the packages.
RECEIVING THE UNIT
Check, upon delivery, that the air-conditioner is intact and in per-
fect condition; immediately notify the carrier in writing of any
damage that may be due to transport.
In particular, check that the panel where the user terminal is fitted
has not been damaged.
If the side panels have been damaged during transport, they must
be replaced before installing the unit.
Net Weights
Mod. 12 18 20 29 50 70 90 130 150
L mm 1060 1610 2160 2710
P mm 560 850 950
H mm 2250 2265
Mod. 12 18 20 29 50 70 90 130 150
L mm 1090 1640 2190 2740
P mm 590 880 980
H mm 2265 2320 2380
STANDARD PACKAGING PACKAGING WITH WOODEN CRATE (OPTIONAL)
Frame F2 F3 F4 F5 F6 F7
Mod. 12 18 20 29 50 70 90 130 150
i-AX (kg) 256 268 316 385 529 757 918 1030 1050
i-AW (kg) 266 280 328 399 554 791 979 1120 1140
i-AD (kg) / / 295 360 494 730 877 1060 /
i-AT (kg) / / 330 399 533 766 914 1150 /
i-AF (kg) / / 330 399 533 766 914 1150 /

DIMENSIONS AND WEIGHT
ENi-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF 17
The drawings represent the configuration with air intake from the
front.
OVER Models Frame 2
OVER Models Frame 3
OVER Models Frame 4
Ventilatori radiali EC
EC Radial fan
EC Radial fan

18 EN i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
OVER Models Frame 5 OVER Models Frame 6
EC Radial fan EC Radial fan
The drawings represent the configuration with air intake from the front.
OVER Models Frame 7
EC Radial fan

ENi-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF 19
UNDER Models Frame 2
UNDER Models Frame 3 UNDER Models Frame 4

20 EN i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
UNDER Models Frame 5 UNDER Models Frame 6
UNDER Models Frame 7