Messana ATU150H Manuel utilisateur

Vertical and horizontal Air Treatment Units (ATU)

Neutral Temperature Dehumidifier (NTD) with high efficiency heat recovery ventilation (HRV)

M A I N T E N A N C E , I N S T A L L A T I O N

A N D U S E R M A N U A L

Air Treatment Unit

2 Maintenance, installation and user manual –Rev 03

Each unit comes with “Installation and Operation Manual” (this manual) and additional

documents:

Cutsheet (it includes dimensional drawings and clearances)

Wiring diagram

The reproduction of this document, even partial, without Messana Inc. written authorization, is strictly forbidden

Air Treatment Units

Maintenance, installation and user manual –Rev 03 3

ATU

Neutral Temperature Dehumidifier (NTD) with high efficiency heat recovery ventilation (HRV)

BEFORE USING THIS UNIT, READ CAREFULLY THIS MANUAL

Dear Customer,

Thank you for having chosen one of our products.

We are glad to provide this User Manual to you, in order to allow an optimum usage of the unit, for a better

comfort and a higher safety.

We strongly recommend a careful reading of the directions mentioned in the following pages and to let the

present manual available to all the operators who will work for the management and the maintenance of the

unit itself.

We remain at your disposal for any further information and explication you may need, whether in the first

starting phase and in every following moment.

For necessary ordinary or extraordinary maintenance operations, we remain at your disposal with our

Technical support Service, to assist you and supply the spare parts.

For a quicker assistance, please contact us at the following references:

MESSANA RADIANT COOLING

radiantcooling.com

4105 Soquel Ste B, Soquel CA 95073

+1 (855) RAY-MAGIC (729-6244)

Air Treatment Unit

4 Maintenance, installation and user manual –Rev 03

SUMMARY

1INTRODUCTION ............................................................................................................................. 5

1.1 RESPONSABILITIES ................................................................................................................................................................. 5

1.2 SERVICE RULES....................................................................................................................................................................... 7

1.3 USES ...................................................................................................................................................................................... 7

1.4 RESIDUAL RISK AREAS............................................................................................................................................................ 8

1.5 INTERVENTION AND MAINTENANCE ..................................................................................................................................... 8

1.6 GENERAL SAFETY RULES ........................................................................................................................................................ 9

2PRODUCT DESCRIPTION ................................................................................................................10

2.1 SERIES .................................................................................................................................................................................. 11

2.2 AIR FLUXES........................................................................................................................................................................... 12

2.3 STRUCTURE ......................................................................................................................................................................... 20

2.4 OPERATING LIMITS .............................................................................................................................................................. 20

2.5 FUNCTIONS.......................................................................................................................................................................... 21

3REFRIGERANT AND HYDRAULIC CIRCUITS ......................................................................................22

3.1 FUNCTIONAL SCHEMES ....................................................................................................................................................... 22

3.2 PROJECT CRITERIA ............................................................................................................................................................... 22

4ELECTRICAL CIRCUITS ....................................................................................................................23

4.1 ELECTRICAL DEVICES............................................................................................................................................................ 23

5DISPLAY........................................................................................................................................23

5.1 KEYS..................................................................................................................................................................................... 23

5.2 MAIN SCREEN ...................................................................................................................................................................... 24

5.3 USER MENU ......................................................................................................................................................................... 24

5.4 ALARMS MENU.................................................................................................................................................................... 27

5.5 UNIT STATUS MENU ............................................................................................................................................................ 27

5.6 TIME BANDS MENU ............................................................................................................................................................. 28

5.7 OTHER SCREENS................................................................................................................................................................... 29

6TECHNICAL DATA ..........................................................................................................................30

6.1 TECHNICAL DATA SHEET ...................................................................................................................................................... 30

6.2 AIRFLOWS AND PRESSURE................................................................................................................................................... 34

6.3 DEHUMIDIFICATION PERFORMANCE .................................................................................................................................. 36

6.4 HYDRAULIC CIRCUIT LOAD LOSSES ...................................................................................................................................... 38

7HEATING CAPACITY –MODEL I ......................................................................................................40

8MAINTENANCE AND TROUBLESHOOTING......................................................................................41

8.1 FAULTS AND ANOMALIES .................................................................................................................................................... 41

8.2 MAINTENANCE TABLE ......................................................................................................................................................... 43

8.3 ORDINARY MAINTENANCE .................................................................................................................................................. 44

8.4 EXTRAORDINARY MAINTENANCE........................................................................................................................................ 46

9DISMANTLING OF THE UNIT ..........................................................................................................46

9.1 AMBIENT PROTECTION........................................................................................................................................................ 46

10 INSTALLATION ..............................................................................................................................47

10.1 INTRODUCTION ................................................................................................................................................................... 47

10.2 PLACEMENT......................................................................................................................................................................... 47

10.3 CLEARANCES........................................................................................................................................................................ 48

10.4 HYDRAULIC CONNECTIONS.................................................................................................................................................. 50

10.5 ELECTRICAL CONNECTIONS ................................................................................................................................................. 51

10.6 FIRST STARTING, CALIBRATION AND CONFIGURATION ....................................................................................................... 54

FOR THE DIMENSIONAL DRAWINGS, SEE THE DRAWINGS ATTACHEMENT

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Maintenance, installation and user manual –Rev 03 5

1INTRODUCTION

The present MIUM indicates the uses of the unit and gives instructions for transport, installation, assembling and regulation of the

unit. It gives directions about maintenance, spare parts’ request, residual risks presence and staff education.

This manual should be read and used in the following way:

-Each operator and person concerned with the use and maintenance of the unit, should read it carefully and follow the

instructions it gives;

-the employer has to verify that the operator has the required attitudes to conduct the unit and that he has carefully read

the manual; the employer is also supposed to inform the operator about the risks of accidents, mainly risks deriving from

the noise, the individual protection devices and the rules preview according to the law, both at an international level and at

the destination Country level;

-the manual should always be available for the user, the supervisors, the transport Company, the operators for the

placement, the maintenance, the reparation and the dismantling of the unit;

-the manual should be protected from humidity and hot zones and considered as an integrant part of the unit for all its

lifetime; it has to be delivered to any other user or the next owner of the unit;

-please make sure that every update is included in the manual;

-do not damage, remove, strip or re-write the manual, neither part of it; in case it is lost or damaged, please contact the

manufacturer for the request of a new user manual and communicate the matriculation number of the unit (you find it on

the data label).

Please, take care of the following symbols. Their function is to underline the following information:

It makes reference to dangerous situations that can occur when using the machine, in order to

grant people safety.

It makes reference to dangerous situations that can occur when using the machine, in order to

avoid damages to the unit itself and to things around it.

It makes reference to suggestions or additional integration for a correct use of the unit.

The manufacturer has the right to update products and relative manuals, without being obliged to update previous versions, with

exception of particular cases.

This manual refers to the current technologies adopted at the moment of the selling of the unit and cannot be considered

inadequate according to following updating due to technology evolutions.

To ask for eventual manual updating or for integration, please forward your request to the previously indicated references.

Please contact the manufacturer for further information or suggestions.

In case of re-selling of the unit, please inform the manufacturer about the new owner references, in order to facilitate the

communication between the both of us.

1.1 RESPONSABILITIES

The unit is granted according to the contract clauses subscribed in the sales negotiation.

The manufacturer is not responsible for accidents that can occur because of:

-the non-following of the instructions given in this manual about the correct use,

maintenance and first-starting of the machine;

-changes made in the unit or in the safety devices without a written authorization from the

manufacturer;

-non-authorized attempts of repair;

-negligence in constant maintenance or use of non-original spare parts;

Anyhow, if the user accuses the manufacturer for any fault of the unit, he has to demonstrate that the damage occurred has been a

direct consequence of the supposed fault.

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6 Maintenance, installation and user manual –Rev 03

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1.2 SERVICE RULES

The service rules described in this manual have to be considered as integral part of the unit supplied.

Moreover, these rules are reserved to the operator, who has previously been instructed about the unit in object and they provide

necessary information about safety and correct use of the machine.

Please, consider that incorrect and incomplete education about the units can cause accidents.

Read carefully the following suggestions

The first-starting of the unit should be done only by a qualified staff and authorized by the

manufacturer.

-When installing the unit or when an intervention is required, it is fundamental to follow the rules described in this manual

and to pay attention to the directions given by the control of the machine.

-Accidents can be avoided by following these technical instructions, with reference to the machine-directive CE/42/2006

and its following revisions; in every case, keep attention to the national safety rules.

-Do not remove or damage protections, labels and writings, especially those imposed by the law; in case they are no more

readable, please substitute them.

DANGEROUS ZONE: every zone internal or in the nearby of a unit where the presence of men is a risk their safety or health;

EXPOSED PERSON: every person who stands within or nearby a danger zone

OPERATOR: the person charged for the installation, the starting, the regulation, the maintenance, the cleaning, the

reparation and the transport of the unit

All the operators should follow the accidents prevention measures, both international and of the

destination Country, in order to avoid accidents.

The units have been realized in conformity with technical laws, dispositions and rules in force.

We have observed the laws, disposals, prescriptions, orders, directives concerning these units.

Used materials, equipment parts, production processes, quality warranty and control satisfy the required maximum safety

standards.

The lifetime of the unit and its correct functioning can be granted by using it for the supposed usages, by moving them carefully and

by following accurately maintenance and revisions.

1.3 USES

Horizontal units are ductable dehumidifiers with heat recovery for horizontal (typical drop ceiling) installation, while vertical units

are for vertical (typical in wall) installation: both are conceived to function combined with radiant systems.

ATU units can dehumidify, cool, and heat, by doing an exchange: exhausted air outside and fresh air inside.

Its use is recommended within the functioning limitations indicated in this manual.

Place the unit where there are not explosion, corrosion or fire dangers, neither in vibrating areas

or in presence of electro-magnetic fields. Furthermore, do not operate in ways which differ from

those indicated and do not underestimate safety operations.

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of

experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person

responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

Air Treatment Unit

8 Maintenance, installation and user manual –Rev 03

1.4 RESIDUAL RISK AREAS

Due to the peculiar functionality of the unit, in some areas of it, there are residual risks which was

not possible to elude during the project neither to reduce. Each operator should be aware of the

residual risks in this unit and to follow the safety rules, in order to avoid accidents.

- Short circuit or fire caused by short circuit risk;

- Explosion danger because of the presence of under pressure circuits or pollution due to the refrigerant gas in the circuit;

- Burn danger because of high temperature pipes;

- Slash danger.

1.5 INTERVENTION AND MAINTENANCE

Please keep in mind that an accurate manual cannot substitute a good experience of the operator; for some complex maintenance

operations, this manual is a reminder of the main activities, dedicated to qualified operators who have, i.e., followed technical

training directly from the Manufacturer.

Read carefully the following suggestions:

-A constant and pre-scheduled maintenance can grant the safety working of the unit. If there are some necessary

maintenance interventions, do not delay them and make reference only to qualified operators and original spare-parts;

-Program carefully every intervention;

-Operators’ working space should be clean and free, in order to grant the necessary movements without dangers;

-Operators should avoid clumsy operations, in uncomfortable conditions which can compromise their balance.

-Operators’ should pay attention to the risk of cloths’ joint within units in movement; the use of caps is recommended in

case of long-hairs;

-Even the use of necklaces, bracelets and rings can be a danger;

-The working place should be correctly lighted; insufficient or excessive lights can be a danger;

-After the turning off of the unit, wait at least 10 minutes before intervening on it, in order to avoid burn dangers;

- do not repair high-pressure pipes with welds;

- pressure liquids on the refrigerant circuits and electrical components presence can be dangerous

during installation and maintenance operations;

-Reduce as much as possible the time of open for the refrigerant circuit: oil exposition to air causes the absorb of high

quantity of humidity and this leads to the creation of weak acids;

-Only qualified people should intervene on the unit;

-Before operating on the unit, make sure there is no electrical supply;

-Make sure that safety devices work properly and that there are no doubts about their functioning; if not do not start the

unit;

-Use only devices suggested by the manufacturer and avoid the use of damaged devices;

- after having cleaned the unit, the operator should check that there are not damaged parts:

otherwise, require the intervention of a maintenance technician;

-Keep always clean the area in which the unit is located; with oil and damaged parts or scattered tools there is slide danger;

-The use of flammable liquids is strictly forbidden during cleaning operations.

To clean the unit, do not use oil, gasoline or solvents: these materials leave an oily film on the unit, which captures dust, while

solvents (even weak ones) damage the varnish and can create rust.

If some water falls on electrical devices, this can oxidize contacts and may lead to a non-correct functioning of the unit.

Do not use water or steam on sensor, contacts or other electrical parts.

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Maintenance, installation and user manual –Rev 03 9

Pay attention to under-pressure pipes integrity and check that there are not liquid losses. Check that there are no liquid or

dangerous substances losses.

If this happens, the operator should not turn the unit on before having solved the problem.

1.6 GENERAL SAFETY RULES

Safety clothes

Operators should wear safety

equipement such as gauntlet, helmet,

safety glasses, safety footwear and cap

for protection from the noise.

Fire extinguisher and first aid

Place a first aid box and a fire extinguisher near the unit.

Check regularly that fire extinguishers are charge and that you have understood how to use them.

In case of fire use it according to the regulations in force and contact the fire-men.

Check regularly that the first aid box is fully equipped.

Verify to have nearby the useful emergency phone numbers.

The owner of the place where the unit is installed is responsible for the fire extinguisher and the first

aid box.

Suggestions for advices and maintenance

Put an “UNDER MAINTENANCE” label on all sides of the unit.

Check carefully the unit by following the list of operations suggested in the present manual.

Safety labels

General danger

High voltage danger

Burn danger

Equipment in movement danger

Shearing risk

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10 Maintenance, installation and user manual –Rev 03

2PRODUCT DESCRIPTION

Messana ATU units are conceived for a use in civil, residential and commercial ambiences,

with high latent load and for a 24h/day functioning.

They are strongly suggested for places where there are cooling radiant systems:

underfloor, walls, ceiling.

Messana ATU units combine top technical solutions with a pleasant looking

and, if supplied with water at 60°F can dehumidify the ambient air without

modifying its temperature or (if required) they can add cooling power.

Neutral air is possible thanks to the presence of 2 exchangers, used to pre-

cool the air and after-cool it after dehumidification process.

The cool air is possible thanks to the presence of a plate exchanger which removes

the thermal load from the ambient through cold water.

The units are conceived to be ducted with flexible pipes or rigid ducts.

The use of electronic radial fans with brushless engine and inverter integrated,

grants a high prevalence, by reducing the electrical consumptions.

The use of exclusive high-quality refrigerant, hydraulic, gas and electrical

components make Messana ATU dehumidifiers the state-of-art in terms of

efficiency, reliability and sound emitted level.

High-efficiency heat recoveries grant over 90% efficiency

Ce manuel convient aux modèles suivants

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