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EN

When INSTALLING, COMMISSIONING, OPERATING AND SERVICING the units, observe the following safety regulations:

 ▪ The unit must be installed according to the regulations in force in the country of use, following the manufacturer's instructions, by professionally 

qualified staff or by a Technical Service Centre authorised by the manufacturer. 

 ▪ The unit must only be installed and serviced by trained and qualified staff.

 ▪ Professionally qualified staff are people with specific technical skills in the sector of heating and conditioning system components. All the neces-

sary information can be obtained by calling the Manufacturer.

 ▪ Prepare the chilled water, hot water and electricity supply lines as indicated in the installation project.

 ▪ Do not operate the unit unless it and its electrical components have been connected to the earth circuit of the building.
 ▪ If the unit must be dismounted, protect your hands with safety gloves.

 ▪ Beware of the sharp sheet metal edges inside the unit.

 ▪ Beware of the external corners of the unit.

 ▪ Keep the ventilation grilles free.
 ▪ Make sure the water supply valve is closed.

 ▪ Wait for the heat exchanger to cool down.
 ▪ For units with accessible fans (built-in versions), do not start the unit if it has not been mounted inside a chamber that can only be accessed 

using tools.

 ▪ The fans can reach a speeds of up to 1000 rpm. Do not insert your hands or objects into the fan.
 ▪ Install a safety switch near the unit, in an easily accessible position, disconnecting it from the mains power supply. Always disconnect the unit 

from the mains power supply before performing any cleaning or maintenance operations.

 ▪ Before accessing the unit, make sure that all the electrical users have been disconnected. In particular, before opening the inspection panels, 

make sure the fan is off and cannot be switched without the person working on the unit knowing it.

 ▪ CHECK THE EARTH CONNECTION !!

 ▪ The appliance is not suitable for use by persons (including children) with reduced physical, sensory or mental capacities, or who lack experience 

or knowledge, unless, through the mediation of a person responsible for their safety, they have had the benefit of supervision or of instructions 

on the use of the appliance. Children must be supervised to make sure they do not play with the appliance.

 ▪ This unit must only be used for heating-conditioning purposes. All other use is deemed improper and therefore hazardous.

 ▪ If the unit is installed in areas with disabled people and/or children, it must be positioned so that it is not easy to access. Make sure that the door 

accessing the internal controls is always closed.

 ▪ The maker declines all liability for injury to people and animals or damage to property deriving from incorrect installation.

 ▪ The manufacturer declines all liability for damage deriving from improper, incorrect or unreasonable use.

In order to use the unit correctly and safely, the fitter, the user and the maintenance man, within the limits of their respective skills, must scrupulously 

observe the contents of this manual.

•  Keep this manual in a dry place, to prevent it from deteriorating, for at least 10 years for future reference. 

•  Carefully read all the information contained in this manual:

 it gives important indications concerning the safety of installation, use and main-

tenance.

•  Pay special attention to the operating instructions accompanied by the words “DANGER” or “ATTENTION” as, if they are not observed, 

they can damage the unit and/or people and property.

•  For any faults that are not included in this manual, promptly call the local Technical Assistance Service.

•  Make sure this manual always remains with the unit.

•  The manual is an integral and essential part of the product and must always be given to the user.

•  If the unit is sold or transferred to another owner, always make sure the manual accompanies the unit so that it can be consulted by the new 

owner and/or by the fitter.

•  The maker declines all liability for any damage deriving from the improper use of the unit, and from the partial or superficial reading of 

the information contained in the manual.

•  The technical data, aesthetic characteristics, components and accessories indicated in this manual are not binding. The maker reserves the right to 

make all the changes deemed necessary to improve its product at any time.

•  References to laws, regulations or technical rules in this manual are made purely for the sake of information and refer to the date the manual was 

printed. The maker is under no obligation to third parties if new provisions come into force or if modifications are made to current ones.

•  The maker is responsible for the conformity of its product to the laws, directives and construction regulations in force at the moment it was placed 

on the market. Knowledge and observance of the legislative provisions and regulations concerning the design, installation, operation and mainte-

nance of plants are the sole responsibility of the designer, the installer and the user, within the limits of the competencies of each.

•  ATTENTION! It is important to check that the design and installation comply with current regulations (EN standards, Safety rules, local 

by-laws) and are approved, where required, by the bodies competent for performing the relative controls.

OBSERVATIONS

SAFETy SyMBOLS

SAFETy RULES

ATTENTION:

Hazard

DANGER:

Voltage present

DANGER:

Switch off the mains power supply 

before performing maintenance 

operations.

MANDATORY:

Earthing

MANDATORY:

Consult the manual

MANDATORY:

Wear protective gloves

Summary of Contents for a-LIFE3

Page 1: ...ON USE AND MAINTENANCE MANUAL FAN COIL UNITS WITH CABINETS OR BUILT IN a LIFE3 Traditional AC motor i LIFE2 EC Brushless motor a LIFE3 102 1002 with two and four pipes i LIFE2 202 1004 with two and four pipes EN ...

Page 2: ...or injury to people and animals or damage to property deriving from incorrect installation The manufacturer declines all liability for damage deriving from improper incorrect or unreasonable use In order to use the unit correctly and safely the fitter the user and the maintenance man within the limits of their respective skills must scrupulously observe the contents of this manual Keep this manual...

Page 3: ...tallation a LIFE3 i LIFE2 DFIV Built in front air intake vertical installation a LIFE3 i LIFE2 DFMV Cabinet front air intake vertical installation a LIFE3 i LIFE2 DFIO Built in front air intake horizontal instal lation a LIFE3 i LIFE2 DFMO Cabinet front air intake horizontal installation MAIN COMPONENTS Unit versions Do not use the unit as a support for any other machine Do not leave tools rags sp...

Page 4: ...unit on request An envelope containing the installation use and maintenance manual is placed inside the unit An identity label is placed on each unit indicating Maker s data Unit model and identification code Wiring diagram STORAGE ON THE WORKSITE The units must be stored in a covered area away from sunlight rain wind and sand Storage and transpoted limits 20 C 60 C max 90 H R ...

Page 5: ...e 1 kPa 0 9 9 7 2 9 14 7 7 2 Total capacity heating mode 2 kW 1 45 1 48 2 26 2 33 2 98 Total Net Heating Capacity 2 6 kW 1 48 1 51 2 30 2 37 3 03 Water flow in heating mode 2 l s 0 07 0 07 0 11 0 11 0 14 Pressure drop in heating mode 2 kPa 1 3 9 3 3 9 16 1 7 2 Sound Pressure 3 dB A 38 39 42 43 41 Sound Power 4 7 dB A 47 48 51 52 50 MAX SPEED Fan Power Input 1 W 49 0 49 0 66 0 66 0 71 0 Air flow ra...

Page 6: ...Pa 8 5 18 5 13 2 29 2 24 2 Total capacity heating mode 2 kW 3 39 4 79 5 27 6 04 6 30 Total Net Heating Capacity 2 6 kW 3 44 4 88 5 36 6 14 6 41 Water flow in heating mode 2 l s 0 16 0 23 0 25 0 29 0 30 Pressure drop in heating mode 2 kPa 8 6 20 6 13 6 26 6 25 9 Sound Pressure 3 dB A 41 47 47 49 50 Sound Power 4 7 dB A 50 56 56 58 59 MAX SPEED Fan Power Input 1 W 71 0 130 130 146 146 Air flow rate ...

Page 7: ...e 1 kPa 0 9 9 7 2 9 14 7 7 2 Total capacity heating mode 2 kW 1 45 1 48 2 26 2 33 2 98 Total Net Heating Capacity 2 6 kW 1 48 1 51 2 30 2 37 3 03 Water flow in heating mode 2 l s 0 07 0 07 0 11 0 11 0 14 Pressure drop in heating mode 2 kPa 1 3 9 3 3 9 16 1 7 2 Sound Pressure 3 dB A 38 39 42 43 41 Sound Power 4 7 dB A 47 48 51 52 50 MAX SPEED Fan Power Input 1 W 49 0 49 0 66 0 66 0 71 0 Air flow ra...

Page 8: ...Pa 8 5 18 5 13 2 29 2 24 2 Total capacity heating mode 2 kW 3 39 4 79 5 27 6 04 6 30 Total Net Heating Capacity 2 6 kW 3 44 4 88 5 36 6 14 6 41 Water flow in heating mode 2 l s 0 16 0 23 0 25 0 29 0 30 Pressure drop in heating mode 2 kPa 8 6 20 6 13 6 26 6 25 9 Sound Pressure 3 dB A 41 47 47 49 50 Sound Power 4 7 dB A 50 56 56 58 59 MAX SPEED Fan Power Input 1 W 71 0 130 130 146 146 Air flow rate ...

Page 9: ...mode 1 kPa 0 9 9 7 2 9 14 7 7 2 Total capacity heating mode 2 kW 1 45 1 48 2 26 2 33 2 98 Total Net Heating Capacity 2 6 kW 1 48 1 51 2 30 2 37 3 03 Water flow in heating mode 2 l s 0 07 0 07 0 11 0 11 0 14 Pressure drop in heating mode 2 kPa 1 3 9 3 3 9 16 1 7 2 Sound Pressure 3 dB A 38 39 42 43 41 Sound Power 4 7 dB A 47 48 51 52 50 MAX SPEED Fan Power Input 1 W 49 0 49 0 66 0 66 0 71 0 Air flow...

Page 10: ...e 1 kPa 8 5 18 5 13 2 29 2 24 2 Total capacity heating mode 2 kW 3 39 4 79 5 27 6 04 6 30 Total Net Heating Capacity 2 6 kW 3 44 4 88 5 36 6 14 6 41 Water flow in heating mode 2 l s 0 16 0 23 0 25 0 29 0 30 Pressure drop in heating mode 2 kPa 8 6 20 6 13 6 26 6 25 9 Sound Pressure 3 dB A 41 47 47 49 50 Sound Power 4 7 dB A 50 56 56 58 59 MAX SPEED Fan Power Input 1 W 71 0 130 130 146 146 Air flow ...

Page 11: ...1 kPa 0 9 9 7 2 9 14 7 7 2 Total capacity heating mode 2 kW 1 21 1 24 1 85 1 93 2 70 Total Net Heating Capacity 2 6 kW 1 24 1 27 1 89 1 97 2 75 Water flow in heating mode 2 l s 0 03 0 03 0 04 0 05 0 07 Pressure drop in heating mode 2 kPa 6 3 6 5 8 6 9 3 15 0 Sound Pressure 3 dB A 38 39 42 43 41 Sound Power 4 7 dB A 47 48 51 52 50 MAX SPEED Fan Power Input 1 W 49 0 49 0 66 0 66 0 71 0 Air flow rate...

Page 12: ...Pa 8 5 18 5 13 2 29 2 24 2 Total capacity heating mode 2 kW 2 86 3 59 3 75 4 50 4 66 Total Net Heating Capacity 2 6 kW 2 90 3 68 3 84 4 61 4 76 Water flow in heating mode 2 l s 0 07 0 09 0 09 0 11 0 11 Pressure drop in heating mode 2 kPa 16 4 6 5 7 0 8 8 9 3 Sound Pressure 3 dB A 41 47 47 49 50 Sound Power 4 7 dB A 50 56 56 58 59 MAX SPEED Fan Power Input 1 W 71 0 130 130 146 146 Air flow rate 1 m...

Page 13: ...1 kPa 0 9 9 7 2 9 14 7 7 2 Total capacity heating mode 2 kW 1 21 1 24 1 85 1 93 2 70 Total Net Heating Capacity 2 6 kW 1 24 1 27 1 89 1 97 2 75 Water flow in heating mode 2 l s 0 03 0 03 0 04 0 05 0 07 Pressure drop in heating mode 2 kPa 6 3 6 5 8 6 9 3 15 0 Sound Pressure 3 dB A 38 39 42 43 41 Sound Power 4 7 dB A 47 48 51 52 50 MAX SPEED Fan Power Input 1 W 49 0 49 0 66 0 66 0 71 0 Air flow rate...

Page 14: ...Pa 8 5 18 5 13 2 29 2 24 2 Total capacity heating mode 2 kW 2 86 3 59 3 75 4 50 4 66 Total Net Heating Capacity 2 6 kW 2 91 3 68 3 84 4 61 4 76 Water flow in heating mode 2 l s 0 07 0 09 0 09 0 11 0 11 Pressure drop in heating mode 2 kPa 16 5 6 5 7 0 8 8 4 9 Sound Pressure 3 dB A 41 47 47 49 50 Sound Power 4 7 dB A 50 56 56 58 59 MAX SPEED Fan Power Input 1 W 71 0 130 130 146 146 Air flow rate 1 m...

Page 15: ...9 9 7 2 9 14 7 7 2 Total capacity heating mode 2 kW 1 21 1 24 1 85 1 93 2 70 Total Net Heating Capacity 2 6 kW 1 24 1 27 1 89 1 97 2 75 Water flow in heating mode 2 l s 0 03 0 03 0 04 0 05 0 07 Pressure drop in heating mode 2 kPa 6 3 6 5 8 6 9 3 15 0 Sound Pressure 3 dB A 38 39 42 43 41 Sound Power 4 7 dB A 47 48 51 52 50 MAX SPEED Fan Power Input 1 W 49 0 49 0 66 0 66 0 71 0 Air flow rate 1 m h 3...

Page 16: ...8 5 13 2 29 2 24 2 Total capacity heating mode 2 kW 2 86 3 59 3 75 4 50 4 66 Total Net Heating Capacity 2 6 kW 2 90 3 68 3 84 4 61 4 76 Water flow in heating mode 2 l s 0 07 0 09 0 09 0 11 0 11 Pressure drop in heating mode 2 kPa 16 4 6 5 7 0 8 8 9 3 Sound Pressure 3 dB A 41 47 47 49 50 Sound Power 4 7 dB A 50 56 56 58 59 MAX SPEED Fan Power Input 1 W 71 0 130 130 146 146 Air flow rate 1 m h 713 9...

Page 17: ...kPa 7 16 8 17 24 Total capacity heating mode 2 kW 1 72 2 57 3 51 5 16 6 00 Total Net Heating Capacity 2 6 kW 1 73 2 59 3 52 5 19 6 03 Water flow in heating mode 2 l s 0 08 0 12 0 17 0 25 0 29 Pressure drop in heating mode 2 kPa 8 21 10 20 28 Sound Pressure 3 dB A 38 42 44 45 46 Sound Power 4 7 dB A 47 51 53 54 56 MAX SPEED Fan Power Input 1 W 19 8 42 9 36 0 45 3 76 5 Air flow rate 1 m h 363 585 80...

Page 18: ...cooling mode 1 kPa 7 16 8 17 24 Total capacity heating mode 2 kW 1 72 2 57 3 51 5 16 6 00 Total Net Heating Capacity 2 6 kW 1 73 2 59 3 52 5 19 6 03 Water flow in heating mode 2 l s 0 08 0 12 0 17 0 25 0 29 Pressure drop in heating mode 2 kPa 8 21 10 20 28 Sound Pressure 3 dB A 38 42 44 45 46 Sound Power 4 7 dB A 47 51 53 54 56 MAX SPEED Fan Power Input 1 W 19 8 42 9 36 0 45 3 76 5 Air flow rate 1...

Page 19: ... in cooling mode 1 kPa 7 16 8 17 24 Total capacity heating mode 2 kW 1 72 2 57 3 51 5 16 6 00 Total Net Heating Capacity 2 6 kW 1 73 2 59 3 52 5 19 6 03 Water flow in heating mode 2 l s 0 08 0 12 0 17 0 25 0 29 Pressure drop in heating mode 2 kPa 8 21 10 20 28 Sound Pressure 3 dB A 38 42 44 45 46 Sound Power 4 7 dB A 47 51 53 54 56 MAX SPEED Fan Power Input 1 W 19 8 42 9 36 0 45 3 76 5 Air flow ra...

Page 20: ...ooling mode 1 kPa 6 16 8 15 24 Total capacity heating mode 2 kW 1 07 1 66 2 35 3 37 4 03 Total Net Heating Capacity 2 6 kW 1 08 1 67 2 36 3 40 4 07 Water flow in heating mode 2 l s 0 03 0 04 0 06 0 08 0 10 Pressure drop in heating mode 2 kPa 5 7 14 9 34 Sound Pressure 3 dB A 38 42 44 45 46 Sound Power 4 7 dB A 47 51 53 54 56 MAX SPEED Fan Power Input 1 W 19 8 42 9 36 0 45 3 112 Air flow rate 1 m h...

Page 21: ...ooling mode 1 kPa 6 16 8 15 24 Total capacity heating mode 2 kW 1 07 1 66 2 35 3 37 4 03 Total Net Heating Capacity 2 6 kW 1 08 1 67 2 36 3 40 4 07 Water flow in heating mode 2 l s 0 03 0 04 0 06 0 08 0 10 Pressure drop in heating mode 2 kPa 5 7 14 9 34 Sound Pressure 3 dB A 38 42 44 45 46 Sound Power 4 7 dB A 47 51 53 54 56 MAX SPEED Fan Power Input 1 W 19 8 42 9 36 0 45 3 112 Air flow rate 1 m h...

Page 22: ...mode 1 kPa 6 16 8 15 24 Total capacity heating mode 2 kW 1 07 1 66 2 35 3 37 4 03 Total Net Heating Capacity 2 6 kW 1 08 1 67 2 36 3 40 4 07 Water flow in heating mode 2 l s 0 03 0 04 0 06 0 08 0 10 Pressure drop in heating mode 2 kPa 5 7 14 9 34 Sound Pressure 3 dB A 38 42 44 45 46 Sound Power 4 7 dB A 47 51 53 54 56 MAX SPEED Fan Power Input 1 W 19 8 42 9 36 0 45 3 112 Air flow rate 1 m h 363 58...

Page 23: ...e machine Install the unit in a position that allows routine and extraordinary maintenance to be carried out with ease Built in versions The installer MUST cover them with suitable panels false ceilings partition walls closing panels etc which must also act as FIXED GUARDS The protection panels MUST be firmly secured with systems requiring the use of tools to open them e g screws in order to preve...

Page 24: ...ball valves Insert a vent valve at the top and a drain valve at the bottom The heat exchange coils for water are tested to a pressure of 3 MPa 30 bar and can therefore operate up to a maximum pressure of 1 5 MPa 15 bar Suitably bracket the pipes to the outside of the unit to prevent them from weighing down on the coil Install anti freeze devices For installation in areas with particularly cold cli...

Page 25: ...aws They must be large enough to assure a voltage drop during starting of less than 3 of the rated voltage Use H05V K or N07V K cables insulated to 300 500 V running in pipes or ducts All the cables must run in pipes or ducts until they enter the unit terminal block The cables leaving the pipe or duct must be positioned so they cannot be pulled or twisted and be protected from external agents Stra...

Page 26: ...hem the windings overheating Make sure there is no dirt and no foreign bodies on the fan screw User instructions Maintenance Cleaning These units are built using modern technologies that assure long term high efficiency and performance levels It is essential to establish and follow a regular inspection and maintenance pro gramme The following maintenance programme was established considering optim...

Page 27: ...it away from the left hand shoulder in the direction of the arrow 5 Press on the lock of the funnel 6 to release it D Reverse the direction of the coil from pos 7 to pos 8 E Open the relative pre punched holes in the opposite shoulder 9 Insert 10 the coil inclined as shown in the figure and fit the hydraulic unions into the new holes F Turn the condensate drain to the opposite side and if present ...

Page 28: ...n in the figure and fit the hydraulic unions into the new holes F Tighten the 4 Ø 3 9x9 5 screws in the aligned shoulder coil bracket holes 10 in the left and right shoulders G Put back the panel 11 taking care to respect the distance of 96 5 mm as shown in the figure H Tighten the four Ø 3 9x9 5 screws 12 Close the open holes in the left hand shoulder 13 with closed cell insulating tape Instructi...

Page 29: ...e condensate check the condensate drip tray and drain Once the required ambient temperature has been reached the fan stops while cold water continues to cir culate through the coil Preset the plant adjustment system so that when the temperature is reached the fan stops and the water stops flowing through the coil 3 way valve 2 way valve pump OFF chiller OFF etc Troubleshooting GENERAL INFORMATION ...

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