Galletti Estro bldc fli User manual

TECHNICAL MANUAL

ESTRO BLDC

ESTRO BLDC FAN COILS - BRUSHLESS TECHNOLOGY

1.5 kW - 9.0 kW

ESTRO BLDC

all copying, even par tial, of this manual is strictly forbidden FC66003632 - Rev 00

TABLE OF CONTENTS

1 GENERALITIES..................................................................... 3

2 MODELS AND CONSTRUCTIVE COMPONENTS ..................4 - 5

3 ACCESSORIES AVAILABLE .................................................. 6

4 RATINGS AND TECHNICAL DATA .......................................7 - 8

4.1 Weights.................................................................................8

5 PERFORMANCES..............................................................9 - 21

5.1 Cooling mode: models with 1 heat exchanger ....................9 - 12

5.2 Heating mode: models with 1 heat exchanger....................13 - 16

5.3 Heating mode: models with 2 heat exchangers

(4 pipe systems) ..............................................................17 - 20

5.4 Sound levels.........................................................................21

6 OVERALL DIMENSIONS ...................................................22 - 24

7 WIRING DIAGRAMS............................................................ 25

8 VERSIONS WITH SEPARATE INVERTER .............................. 26

8.1 Inverter regulation procedure ................................................26

8.2 Inverter board.......................................................................27

8.3 Alarms .................................................................................27

9 VERSIONS WITH INTEGRATED INVERTER .......................... 28

10 ACCESSORIES .................................................................29 - 31

11 INSTALLATION REQUIREMENTS......................................... 32

12 MAINTENANCE ................................................................... 32

The technical and dimensional data provided herein may undergo changes in connection

with product improvements.

OPERATING LIMITS

> thermal carrier fluid: water

> water temperature: from 5°C to 95°C

> maximum operating pressure: 10 bar

> air temperature: from 5°C to 43 °C

> supply voltage: 230 Vac

- For any further information, contact the manufacturer: [email protected]

- To get the weight of the unit, refer to the User Manual, Rated technical data table.

all copying, even par tial, of this manual is strictly forbidden

FC66003632 - Rev 00

ESTRO BLDC

1 GENERALITIES

Backed by thirty years of experience in the manufacture of fan coil units

Galletti introduces the new ESTRO BLDC line.

Galletti fan coils can be equipped with a permanent magnet (brushless)

electric motor, controlled by an inverter, which enables continuous adjustment

in the number of fan revolutions.

The great advantage of brushless motors is the significant reduction in

power consumption, which in instant operations reaches up to a 1/3of that

of conventional motors and at around 50% in integrated operations, with the

corresponding reduction in CO2emissions!

The DC Inverter technology allows to continuously adjust the air flow to the

actual needs of the environment by considerably reducing the fluctuations in

room temperature that are typical of step-by-step adjustments.

The direct consequence is also the reduction in the noise emission of the fan

coil, which is now proportional to the demands of the environment.

THE CONTROL

The operation of the unit with brushless motor is managed by the

MYCOMFORT LARGE control panel, using an analogue output (0-10V) which

is connected to the inverter.

MAX speed

MED

speed

MIN

speed

winter set

winter set °C

% opening

The Galletti brushless fan coil thus represent the

state of the art due to the possibility of regulating

the operation, depending on the temperature of

the air, its relative humidity, the temperature of the

water and based on the programmable time slots.

By means of the digital outputs it is possible

to switch on and off external units or devices

such as chiller, boiler, pumps, water circulation

pumps, etc.

Another analog output makes it possible to control

the modulating valves.

Permanent magnets electric motor, mounted on vibration damping couplings,

complete with winding thermal protection.

The unit is equipped with an inverter board to control the motor, which can

be used separately or installed on the motor itself (features below). By means

dipswitches this system makes it possible to precisely set the maximum

rotation speed of the motor (the control signal range being always 0-10

V) even when the maximum rotation speed must be controlled to reduce

noise levels.

The control inverter is equipped with Hall cells to precisely control the position

of the rotor, and thus the rotation even at very low rotation speed (when

traditional motors cannot be controlled).

For the ESTRO BLDC project we selected top quality materials which, together

with the great care and attention dedicated to the

assembly of the main constructive components,

make the new Galletti fan coil units highly reliable

from a performance standpoint while minimising

noise levels.

New construction concept unifying the vertical

and horizontal mounted models:

F L I Suspended wall installation, with cabinet, with vertical air flow.

F A I Wall-mounted, with cabinet, with inclined air flow.

F U I Floor or ceiling mounted, with cabinet, with vertical air flow and air

intake grille complete with filters.

F P I Ceiling mounted, cabinet with air outlet grilles and rear air intake with

filter.

F C I Vertical or horizontal recess mounted with heat insulated galvanised

sheet casing.

F F I Vertical and horizontal recess mounted, with front air intake, with

heat insulated galvanised sheet casing.

The performance features of Galletti ESTRO BLDC products are certified

by EUROVENT which guarantees the reliability of the data shown on this

documentation.

ESTRO BLDC

all copying, even par tial, of this manual is strictly forbidden FC66003632 - Rev 00

2 MODELS AND CONSTRUCTIVE COMPONENTS

FLI Wall mounting

> Cabinet composed of a thick

steel sheet panel (10/10 mm),

side panels and air outlet grille

(swinging by 180°) built from

ABS. The side doors make it

possible to access the technical

compartments and the control

panel (accessory).

> Bearing structure built from thick

galvanised steel sheet (thickness

up to 15/10 mm), insulated by means of Class 1 self-extinguishing

panels.

> High efficiency heat exchanger made with copper piping and aluminium

fins blocked to pipings by mechanical expansion, provided with brass

manifolds and air vent valve. The heat exchanger usually comes with

water connections mounted on the left, but it can be turned by 180°.

> Permanent magnets electric synchronous motor (BLDC) mounted on

vibration damping supports, complete with sinusoidal inverter board.

> Double suction centrifugal fans, statically and dynamically balanced,

directly connected to the electrical motor, made with antistatic ABS, with

blades having an airfoil section and offset modules, or aluminium.

> Honey-comb polypropylene washable air filter, mounted on a galvanised

sheet frame protected by a net, easily removable for maintenance

operations. The filter is secured to the cabinet with ¼-turn screws.

FFI Vertical / horizontal recess

mounted

> Bearing structure built from

thick galvanised steel sheet

(thickness up to 15/10 mm),

insulated by means of Class 1

self-extinguishing panels.

The unit is supplied complete with

a double condensate collection

and drainage system; in case of

horizontal installation, condensate is collected in a capacious drip tray.