Robur AD Series Bedienungsanleitung

For natural, simple and aordable cooling of medium and

large buildings

AD evaporative coolers

Installation, use and maintenance manual

This Installation, use and maintenance manual has been drawn up and printed by Robur S.p.A.; whole or partial reproduction of this

Installation, use and maintenance manual is prohibited.

The original is led at Robur S.p.A.

Any use of this Installation, use and maintenance manual other than for personal consultation must be previously authorised by Robur S.p.A.

The rights of those who have legitimately led the registered trademarks contained within this publication are not aected.

With the aim of continuously improving the quality of its products, Robur S.p.A. reserves the right to modify the data and contents of this

Installation, use and maintenance manual without prior notice.

Revision: B

Code: D-LBR754EN

DISPOSAL

The appliance and all its accessories must be disposed of separately in accordance with the regulations in force.

Use of the WEEE symbol (Waste Electrical and Electronic Equipment) indicates that this product cannot be disposed of as household waste.

Proper disposal of this product helps to prevent potential negative consequences for the environment and human health.

Installation, use and maintenance manual – AD 3

INDEX OF CONTENTS

I Introduction.............................................................................

p.4

I.1 Recipients ..........................................................................

p.4

I.2 Control device..................................................................

p.4

II Symbols and denitions...............................................

p.4

II.1 Key to symbols.................................................................

p.4

II.2 Signage applied on the appliance............................

p.4

II.3 Terms and denitions....................................................

p.4

III Warnings......................................................................................

p.4

III.1 General and safety warnings......................................

p.4

III.2 Conformity ........................................................................

p.5

III.3 Exclusions of liability and warranty..........................

p.5

1 Features and technical data......................................

p.6

1.1 Features..............................................................................

p.6

1.2 Dimensions .......................................................................

p.7

1.3 Electrical wiring diagram .............................................

p.8

1.4 Controls ..............................................................................

p.9

1.5 Technical characteristics.............................................

p.10

1.6 System operation..........................................................

p.10

2 Transport and positioning........................................

p.11

2.1 Warnings ..........................................................................

p.11

2.2 Handling...........................................................................

p.11

2.3 Storage..............................................................................

p.11

2.4 Appliance positioning.................................................

p.11

3 Heating engineer...............................................................

p.15

3.1 Warnings ..........................................................................

p.15

3.2 Hydraulic connections ................................................

p.15

4 Electrical installer..............................................................

p.16

4.1 Warnings ..........................................................................

p.16

4.2 Electrical systems..........................................................

p.16

4.3 Electrical power supply...............................................

p.16

4.4 Control system...............................................................

p.16

5 First start-up ..........................................................................

p.17

5.1 Preliminary checks........................................................

p.17

5.2 Suggestions for the rst start-up ............................

p.17

6 Normal operation..............................................................

p.18

6.1 Warnings ..........................................................................

p.18

6.2 Switch on and o..........................................................

p.18

7 Maintenance..........................................................................

p.18

7.1 Warnings ..........................................................................

p.18

7.2 End of season maintenance......................................

p.18

7.3 Pre-season maintenance............................................

p.18

Introduction

I INTRODUCTION

Manual

This Manual is an integral part of the AD unit and must

be handed to the end user together with the appliance.

I.1 RECIPIENTS

This Manual is intended for:

▶

End user, for appropriate and safe use of the appliance.

▶

Qualied installer, for correct appliance installation.

▶

Planner, for specic information on the appliance.

I.2 CONTROL DEVICE

In order to work, the AD unit requires a control device to be con-

nected by the installer (see Paragraph 1.4

p.9

II SYMBOLS AND DEFINITIONS

II.1 KEY TO SYMBOLS

DANGER

WARNING

NOTE

PROCEDURE

REFERENCE (to other document)

II.2 SIGNAGE APPLIED ON THE APPLIANCE

Live electrical parts: warns of danger from live electri-

cal parts.

Mechanical parts: warns of danger due to moving me-

chanical parts.

II.3 TERMS AND DEFINITIONS

Appliance / Unit = equivalent terms, both used to refer to the

evaporative cooler AD.

TAC = Technical Assistance Centre authorised by Robur.

III WARNINGS

III.1 GENERAL AND SAFETY WARNINGS

Installer's qualications

Installation must exclusively be performed by a qualied

rm and by skilled personnel, with specic knowledge

on heating, hydraulic and electrical systems, in compli-

ance with the laws in force in the Country of installation.

Declaration of conformity

Upon completing installation, the installing rm shall

issue to the owner/client the appliance's workmanlike

conformity declaration, according to national/local reg-

ulations in force and the manufacturer's instructions/

provisions.

Misuse

The appliance must only be used for the purposes for

which it has been designed. Any other use is deemed

hazardous. Incorrect use may aect operation, duration

and safety of the appliance. Adhere to the manufactur-

er's instructions.

Use of the appliance by children

The device can be used by children over 8 years old,

and by people with reduced physical, sensory or mental

capabilities, or lack of experience or knowledge, only if

they are under surveillance or after they have received

instructions regarding safe use of the appliance and un-

derstanding the dangers inherent in it. Children should

not play with the appliance. Cleaning and maintenance

that must be performed by the user must not be per-

formed by unsupervised children.

Hazardous situations

Do not start the appliance in hazardous conditions, such

as: problems with the electrical system, disassembled or

damaged parts of the appliance, malfunctioning, disa-

bling or bypassing of control and safety devices.

In case of danger, request intervention by qualied per-

sonnel.

In case of danger, switch o the electrical power supply

only if this can be done in total safety.

Do not entrust children, persons with physical, sensory

or mental disabilities or persons with poor knowledge

and experience with use of the appliance.

Warnings

Installation, use and maintenance manual – AD 5

III

Moving parts

The appliance contains moving parts.

Do not remove guards during operation, and in any case

prior to disconnecting the power supply.

Electrocution hazard

Disconnect the electrical power supply before any oper-

ation on appliance components.

For electrical connections exclusively use compliant

components and according to the specications provid-

ed by the manufacturer.

Ensure the appliance cannot be accidentally switched

back on.

Earthing

Electrical safety depends on eective earthing system,

correctly connected to the appliance and installed ac-

cording to the regulations in force.

Aggressive substances in the air

The air of the installation site must be free of any aggres-

sive substances or impurities that could contaminate the

evaporative packs of the appliance.

Switching the appliance o

Except in the event of danger, do not disconnect the

power supply to switch o the appliance, but always and

exclusively act through the provided control device.

In the event of failure

Operations on internal components and repairs may

exclusively be carried out by a TAC, using only original

parts.

In the event of failure of the appliance and/or breakage

of any component, do not attempt to repair and/or re-

store and immediately contact the TAC.

Appliance positioning

Do not install the machine in closed areas; it must be in-

stalled outside the room to be treated, unless by specic

approval by the manufacturer.

First start-up

Do not operate the unit until the air supply duct has

been installed and connected.

Wastewater

During normal operation of the system in cooling mode,

the evaporation process produces an accumulation of

mineral salts and solid residues in the waste water; this

water is not potable.

Routine maintenance

Proper maintenance assures the eciency and good op-

eration of the appliance over time.

Maintenance must be performed according to the

manufacturer's instructions (see Chapter 7

p. 18

) and

in compliance with current regulations.

Enter into a maintenance contract with an authorised

specialised rm for routine maintenance and for servic-

ing in case of need.

Use only original parts.

Keep the Manual

This Installation, use and maintenance manual must al-

ways accompany the appliance and must be handed to

the new owner or installer in the event of sale or removal.

III.2 CONFORMITY

EU Directives and standards

The AD evaporative coolers comply with the essential require-

ments of the following Directives:

▶

2014/30/EC "Electromagnetic Compatibility Directive" as

amended and added.

▶

2014/35/EC "LowVoltage Directive" as amended and added.

▶

2006/42/EC "Machine Directive" as amended and added.

▶

327/2011/EU "Ecodesign requirements for fans" as amended

and added.

Other applicable provisions and standards

The design, installation, operation and maintenance of the sys-

tems shall be carried out in compliance with current applicable

regulations, depending on the Country and location, and in ac-

cordance with the manufacturer's instructions. In particular, reg-

ulations regarding the following shall be complied with:

▶

Electrical systems and equipment.

▶

Any other applicable law, standard and regulation.

III.3 EXCLUSIONS OF LIABILITY AND

WARRANTY

Any contractual or extra-contractual liability of the man-

ufacturer for any damage caused by incorrect installa-

tion and/or improper use and/or failure to comply with

regulations and with the manufacturer's directions/in-

structions shall be disclaimed.

In particular, the warranty on the appliance may be ren-

dered void by the following conditions:

Incorrect installation.

Misuse.

Failure to comply with the manufacturer's indications on

installation, use and maintenance.

Alteration or modication of the product or any part

thereof.

Extreme operational conditions or however outside of

the operational ranges set forth by the manufacturer.

Damages caused by external agents such as salts, chlo-

rine, sulphur or other chemical substances present in the

air of the installation site and/or in the water supply to

the appliance.

Abnormal actions transmitted to the appliance by the

plant or installation (mechanical stresses, pressure, vi-

brations, thermal expansion, electrical surges...).

Accidental damages or due to force majeure.

Features and technical data

1 FEATURES AND TECHNICAL DATA

1.1 FEATURES

1.1.1 Available range

The AD evaporative coolers are available in two models, which

dier in the maximum air ow that can be delivered:

▶

AD14 with air ow up to 13000 m³/h

▶

AD20 with air ow up to 20000 m³/h

Three dierent versions are available for each model, two of

which are equipped with an independent basic (ECO) or ad-

vanced (EVO) remote control for each unit, and the third (SC) is

suitable for the centralised management of a system composed

of a maximum of 30 units, to be associated with a centralised

control system, supplied by Robur.

The three versions can be summarized as follows:

▶

AD14/AD20 ECO: equipped with the basic ECO remote con-

trol (Paragraph 1.4.2

p.9

▶

AD14/AD20 EVO: equipped with the advanced EVO remote

control (Paragraph 1.4.3

p.9

▶

AD14/AD20 SC: without individual remote control, but de-

signed for a centralised control (Paragraph 1.4.4

p.9

1.1.2 Operation

To improve the summer microclimate inside an industrial,

commercial or another type of room, it is necessary to ventilate

the room with many fresh and ltered air renewals, possibly

cooled. In the case of large rooms, for example industrial ones,

an air cooling system is often not advisable because, due to the

large volume of air to be cooled and the thermal loads of the

processes to be neutralized, the amount of energy required is

very high and the cooling eect is reduced by the exhaust air

extraction systems and by the frequent opening of the doors to

carry out the activity.

An excellent solution is represented by an evaporative cooling

system that cools the air with a natural principle: the air passes

through special lters wet with water, transfers part of its heat

during the process of evaporation of the water and lowers its

temperature. The absence of refrigeration machines reduces en-

ergy consumption to a minimum and allows large volumes of air

to be treated for the many necessary air renewals.

The AD evaporative cooler can be installed in all environments

where it is necessary to improve the microclimate, where it is

necessary to ventilate the environment with many fresh and l-

tered air renewals, possibly cooled, such as:

▶

production and crafts premises

▶

commercial premises and warehouses

▶

sports premises in general

Features and technical data

Installation, use and maintenance manual – AD 7

1.2 DIMENSIONS

Figure1.1AD14 dimensions

A Water inlet 3/8" M

B Water drain 60 mm M

C Electrical panel

600

660

630

600

660

630

D-D

1150

209

320

595

280

555

170

1150

1050

117

110

440

217112

243

Features and technical data

Figure1.2AD20 dimensions

A Water inlet 3/8" M

B Water drain 60 mm M

C Electrical panel

150

530

825

1185

1215

1245

590

660

620

1150

1050

130

165

280

530

189

128

592.5 592.5

261.5

195

85170

205

D-D

1650

1.3 ELECTRICAL WIRING DIAGRAM

Figure1.3Electrical wiring diagram

1 Onboard electrical panel

2 Power supply 230V - 50 Hz

3 Remote control

4 20 AWG 5x0,5 mm2shielded cable

5 Do not connect

A1 Main switch onboard the appliance

BRO Brown

WHI White

GRE Green

YEL Yellow

GRY Grey

V+ L1 L2 V- M/S

V- L2 L1 V+

MAX 25 m BRO

WHI

GRE

YEL

GRY

Features and technical data

Installation, use and maintenance manual – AD 9

1.4 CONTROLS

1.4.1 Control device

The operation of the appliance is controlled by a remote control,

available in the following versions:

1. ECO basic remote control (versions AD14/AD20 ECO)

2. EVO advanced remote control (versions AD14/AD20 EVO)

3. Centralized control (versions AD14/AD20 SC)

1.4.2 ECO basic remote control

Figure1.4ECO basic remote control

The features of the ECO basic remote control are:

▶

Turning the appliance on and o.

▶

Cooling/ventilation selection.

▶

Ventilation speed selection (3 levels).

▶

Diagnostics of any faults.

For additional information refer to the instruction sheet

supplied with the ECO remote control.

1.4.3 EVO advanced remote control

Figure1.5EVO advanced remote control

The features of the EVO advanced remote control are:

▶

Automatic/manual operation selection.

▶

Cooling/ventilation selection.

▶

Automatic or manual selection of the ventilation speed (3

levels).

▶

Room temperature detection by integrated thermostat.

▶

Ambient humidity detection by integrated humidistat.

▶

Automatic operation based on the setpoint.

▶

Daily programming of the operating time schedule.

▶

Diagnostics of any faults.

For additional information refer to the instruction sheet

supplied with the EVO remote control.

1.4.4 Centralized control

Figure1.6OCDS009 network card

Figure1.7OCDS010/OCDS011 centralized control

The features of the centralized control are:

▶

Displaying and setting the date and time of network devices.

▶

Displaying of temperature and humidity measured by net-

work devices.

▶

Displaying and changing of temperature and relative hu-

midity setpoints for each individual network device.

▶

Displaying and change network device parameters.

▶

Turning each single network device on and o.

▶

Daily programming of the operating time schedule of the

whole system.

▶

Automatic/manual/o operation selection for each individ-

ual network device.

▶

Cooling/ventilation selection for each individual network

device.

▶

Diagnostics of any faults.

To use this control mode, it is essential that each cooler (up

to a maximum of 30) is equipped with the OCDS009 network

card and that they are connected as an alternative to either the

OCDS010 or OCDS011 control panel (the latter if connection to

the Modbus network is required).

For additional information refer to the instruction sheet

supplied with the OCDS009 network card and the

OCDS010/OCDS011 control panel.

Features and technical data

1.5 TECHNICAL CHARACTERISTICS

Table1.1Technical characteristics

AD14 AD20

Installation data

Air ow

at maximum speed m³/h 13000 20000

at average speed m³/h 9700 15000

at minimum speed m³/h 6500 10000

fan type - assiale

maximum useful pressure head Pa 80

water consumption l/h 43 (1) 64 (1)

Water inlet type - M

thread “ 3/8

Water drain type - M

diameter (Ø) mm 60

Humidifying panel

surface m² 2,7 3,4

thickness mm 100

saturation eciency % 88

Dimensions

width mm 1150 1650

depth mm 1150

height mm 1050

Air delivery outlet width mm 600 1185

height mm 600 590

Weight weight kg 67 120

in operation kg 88 146

Electrical specications

Power supply

voltage V 230

type - single-phase

frequency Hz 50

Electrical power absorption nominal kW 1,10 1,80

maximum power consumption A 4,8 7,0

(1) Test conditions: outdoor temperature 33 °C, relative humidity 60%.

1.6 SYSTEM OPERATION

1.6.1 Ventilation and cleaning of the room

The evaporative cooling system is a system that works dynami-

cally and works on the basis of a natural principle: it introduces

large quantities of cooled external air into the room and extracts

the exhausted hot air through doors, windows and other evacu-

ation openings that are left open.

The operating principle is very simple: if the system expels all the

introduced air, the system produces maximum eciency, grants

all the planned air renewals and cools the environment under

the design conditions.

It is also possible to have a slightly lower extract air ow than the

supplied one (but not less than 80%), which allows the room to

be kept slightly overpressurised compared to the outside, pre-

venting the outside hot air from re-entering the room through

the natural openings.

The ideal condition is to place the air diusers away from the

openings (windows, doors, etc.) and distribute them evenly in-

side the room. By opening a window away from the diusers, the

air passes through the room cooling it before being extracted.

By calculating the correct dimensions of the evacuation open-

ings the maximum eciency of the system is reached. The sys-

tem must be able to extract the large volume of air supplied so

as not to reduce the eectiveness of the system.

If the available openings are not sucient, it is necessary to add

forced air extraction systems (extraction towers).

Failure to comply with these conditions precludes the planned

air renewal, reduces the cooling eect and increases the relative

humidity inside the room.

To extract the exhaust air, natural openings of about 1 m2per

1000 m3of air are required.

1.6.2 Performances of the system

the system increases its air cooling capacity as the relative hu-

midity of the outside air decreases: the drier the fresh outside air

is, the higher the possibility of saturation, the higher the reduc-

tion of the sensible heat contained in it, therefore the greater the

achievable decrease in the air temperature.

The AD evaporative cooler is equipped with a high saturation

eciency evaporating unit which produces a good level of cool-

ing even at relative air humidity values of around 70%.

In areas with high humidity, the cooler must be oversized to

ensure greater air renewal, so as to compensate for the smaller

temperature dierence. In these areas, maximum cooling will be

achieved by ensuring that there are the correct air renewals and

that the unit is put into operation early in the morning to stop

the increase of latent heat within the cooled space. In the design

phase, however, it is advisable to consider the local climatic con-

ditions. On days when the external relative humidity rate is close

to or higher than 70÷75%, it is advisable to operate the unit in

ventilation mode only.

The cooling eciency is not only related to the eciency of the

appliance, but also to the design of the ductwork and the instal-

lation. Insulated ceilings will decrease the internal temperature

signicantly compared to non-insulated ceilings. The same con-

cept is applicable for air ducting.

Andere Handbücher für AD Series

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