Systemair SYSCREW 380, SYSCREW 450, SYSCREW 500, SYSCREW 590, SYSCREW 660 Users guide

...

Installation and maintenance manual Manuel d’installation et de maintenance Installations- und Wartungshandbuch Manuale di installazione e di manutenzione Manual de instalación y de mantenimiento

SYSCREW 380-1260

Air EVO HSE CO/TR

366



1.241 kW

FrançaisEnglish

Air Cooled Water Chillers with Screw Compressors Refroidisseurs de liquide à condensation par air avec compresseurs à vis Luftgekühlte Wasserkühler mit Schraubenkompressoren Refrigeratori d’Acqua Raffreddati ad Aria con compressori a vite Enfriadores de Agua Condensadas con Aire con compresores a tornillo

Part number / Code / Code / Codice / Código: J37276 Supersedes / Annule et remplace / Annulliert und ersezt / Annulla e sostituisce / Anula y sustituye: Notiﬁed Body /Organisme Notiﬁé / Benannte Zertiﬁzierungsstelle / Organismo Notiﬁcato / Organismo Notiﬁcado N°. 0425

ItalianoDeutsch

ISO 9001:2015 certiﬁed management system

Español

Table of Contents

1 - FOREWORD

1.1 Introduction .......................................................................... 2

1.2 Warranty .............................................................................. 2

1.3 Emergency stop/Normal stop ...............................................2

1.4 An introduction to this manual ..............................................2

2 - SAFETY

2.1 Foreword ..............................................................................3

2.2 Definitions ............................................................................ 5

2.3 Access to the unit ...............................................................5

2.4 General precautions..............................................................5

2.5 Precautions against residual risks .........................................5

2.6 Precautions during maintenance operations ..........................6

2.7 Safety labels ................................................................. 7 & 8

2.8 Safety regulations ........................................................9 to 11

3 - TRANSPORT, LIFTING AND POSITIONING

3.1 Inspection .......................................................................... 12

3.2 Lifting ................................................................................ 12

3.3 Anchoring ..........................................................................13

3.4 Storage .............................................................................. 13

4 - INSTALLATION

4.1 Positioning of the unit .........................................................14

4.2 Spring isolator installation ................................................... 14

4.3 Place of installation ............................................................14

4.4 External water circuit ................................................. 15 & 16

4.5 Connection of water temperature sensors

(on shell and tube evaporator) ...........................................17

4.6 Hydraulic connections ....................................................... 18

4.7 Power supply .....................................................................19

4.8 Electrical connections ............................................... 19 & 20

5 - START-UP

5.1 Preliminary check ...............................................................21

5.2 Start-up ............................................................................. 21

5.3 Checking the operation ....................................................... 21

5.4 Delivery to the customer .....................................................21

6 - CONTROL

6.1 General information ............................................................ 22

6.2 Display/Keyboard ...............................................................23

6.3 Main Control Functions .............................................. 23 to 34

6.4 Setpoint .............................................................................35

6.5 Protection and Safety Equipment ........................................35

6.6 HPF version configuration ................................................... 36

7 - PRODUCT DESCRIPTION

7.1 Introduction ........................................................................ 37

7.2 General specifications ........................................................37

7.3 Compressors .....................................................................37

7.4 Refrigeration circuits ..........................................................37

7.5 Water heat exchanger .........................................................37

7.6 Air heat exchanger .............................................................. 38

7.7 Fans ...................................................................................38

7.8 Electrical power supply and control system ........................38

7.9 Accessories ....................................................................... 38

8 - TECHNICAL DATA

8.1 Pressure drops ...................................................................44

8.2 Technical data ........................................................... 45 to 48

8.3 Unit electrical data ..................................................... 49 to 51

8.4 Hydraulic Features ..................................................... 52 to 60

8.5 Position of shock adsorbers

and weight distribution on supports ....................................61

8.6 Dimensional Drawings ............................................... 62 to 73

8.7 Service spaces ...................................................................74

9 - MAINTENANCE

9.1 General requirements .........................................................75

9.2 Planned maintenance .........................................................75

9.3 Refrigerant charge ..............................................................76

9.4 Compressor ....................................................................... 76

9.5 Condenser .........................................................................76

9.6 Fans ...................................................................................77

9.7 Dehydrating filter ................................................................ 77

9.8 Sight glass ......................................................................... 77

9.9 Electronic expansion valve .................................................. 77

9.10 Evaporator .........................................................................77

10 - TROUBLESHOOTING .......................................... 78

11 - SPARE PARTS

11.1 Spare part list.....................................................................81

11.2 Oil for compressors ............................................................81

11.3 Wiring diagrams .................................................................81

12 - DISMANTLING, DEMOLITION AND SCRAPPING

12.1 Generalities ........................................................................ 82

12.2 RAEE Directive ....................................................................82

English

1 - Introdução

1 - Foreword

1.1 Introduction

Units, manufactured to state-of-the-art design and implementation standards, ensure top performance, reliability and fitness to any type of air-conditioning systems.

These units are designed for cooling water or glycoled water (and for water heating in models with heat recovery included) and are unfit for any purposes other than those specified in this manual.

This manual includes all the information required for a proper installation of the units, as well as the relevant operating and maintenance instructions.

It is therefore recommended to read this manual carefully before installation or any operation on the machine. The chiller installation and maintenance must be carried out by skilled personnel only (where possible, by one of Authorised Service Centers).

The manufacturer may not be held liable for any damage to people or property caused by improper installation, start-up and/or improper use of the unit and/or failure to implement the procedures and instructions included in this manual.

1.2 Warranty

These units are delivered complete, tested and ready for being operated. Any form of warranty will become null and void in the event that the appliance is modified without manufacturer’s preliminary written authorisation.

1.3 Emergency stop / Normal stop

The emergency stop of the unit can be enabled using the master switch on the control panel (move down the lever).

For a normal stop, press the relevant push-buttons.

To restart the appliance, follow the procedure detailed in this manual.

1.4 An introduction to the manual

For safety reasons, it is imperative to follow the instructions given in this manual. In case of any damage caused by non-compliance with these instructions, the warranty will immediately become null and void.

Conventions used throughout the manual:

The Danger sign recalls your attention to a certain procedure or practice which, if not

DANGER

WARNING

followed, may result in serious damage to people and property.

The Warning sign precedes those procedures that, if not followed, may result in serious damage to the appliance.

This warranty shall apply providing that the installation instructions have been complied with (either issued by manufacturer, or deriving from the current practice), and the Form 1 (“Start-up”) has been filled-in and mailed to manufacturer (attn. After-Sales Service).

In order for this warranty to be valid, the following conditions shall be met:

n The machine must be operated only by skilled personnel from

Authorised After-Sales Service.

n Maintenance must be performed only by skilled personnel - from

one of Authorised After-Sales Centers.

n Use only original spare parts.

n Carry out all the planned maintenance provided for by this manual

in a timely and proper way.

Failure to comply with any of these conditions will automatically void the warranty.

The Notes contain important observations.

NOTE

The Useful Tips provide valuable information that optimises the efficiency of the appliance.

USEFUL TIPS

This manual and its contents, as well as the documentation which accompanies the unit, are and remain the property of manufacturer, which reserves any and all rights thereon. This manual may not be copied, in whole or in part, without manufacturer’s written authorization.

2 - Safety

2.1 Foreword

These units must be installed in conformity with the provisions of Machinery Directive 2006/42/EC, Pressure Equipment Directive 2014/68/EU, Electromagnetic Compability Directive 2014/30/EU - as per EN 55011, Group 1, Class A, as well as with other regulations applicable in the country of installation. If these provisions are not complied with, the unit must not be operated.

Compressors with frequency inverter (FI) are installed. Several electrical connections are required and all are established inside the terminal box. FI and the compressor motor are Permanently wired and the compressor motor cannot be operated without FI. As soon as the FI is under voltage, the capacitors in the FI intermediate circuit are charged and from this moment on, all the electrical components in

the terminal box present risks.

Hazardous voltages in frequency inverter housing! Any contact will cause severe injury or death. Never open FI housing during operation. In case of any operation in the FI housing, switch off the main switch and

DANGER

secure it against being switched on again. Wait for at least 5 minutes until all capacitors have been discharged. Close perfectly the FI housing before switching on again

The unit must be grounded and no installation and/or maintenance operations may be carried out before deenergising the electrical panel of the unit and protect against restoring

DANGER

power. Wait at least 5 minutes for capacitors to de-energize!

Failure to respect the safety measures mentioned above may result in electrocution hazard and fire in the presence of any short-circuits.

Inside the heat exchangers, the compressors and the refrigeration lines, this unit contains liquid and gaseous refrigerant under

DANGER

pressure. The release of this refrigerant may be dangerous and cause injuries.

The units are not designed to be operated with natural refrigerants, such as hydrocarbons. Manufacturer may not be held liable for any problems deriving from the replacement

DANGER

of original refrigerant or the introduction of hydrocarbons.

Units are designed and manufactured according to the requirements of European Standard PED 2014/68/EU (pressure vessels directive).

English

The inverter compressor is provided with the safety fuction called "Safe Torque Off" (STO), that is used as device for removal power for prevention of unexpected start-up. As long as this function is activated, no drive energy is transferred to the compressor motor, so the compressor motor is safely free of torque, but it is not de-energized. That means that, even if the compressor has been stopped by the "Safe Torque Off" (STO) or "motoroff" function, the FI remains energized.

Even in the cases described above the main switch must be switched off and must be waited for at least 5 minutes before any

DANGER

operation in th FI housing

Due to the use of compressor frequency inverter, the unit may produce a strong magnetic field Keep magnetic and magnetizable objetcs away from the unit. Persons with cardiac pacemakers,

WARNING

implanted heart defibrillators or metallic implants must maintain a clearance of at least 30cm from the compressor.

n The used refrigerants are included in group II (non-hazardous

fluids).

n The maximum working pressure values are mentioned on the

unit’s data plate.

n Suitable safety devices (pressure switches and safety valves)

have been provided, to prevent any anomalous overpressure inside the plant.

n The vents of the safety valves are positioned and oriented in such

a way as to reduce the risk of contact with the operator, in the event that the valve is operated. Anyway, the installer will convey the discharge of the valves far from the unit.

n Dedicated guards (removable panels with tools) and danger signs

indicate the presence of hot pipes or components (high surface temperature).

2 - Safety (continued)

DANGER

The guards of the fans (only for units provided with air heat exchangers) must be always mounted and must never be removed before de-energising the appliance.

The standard unit is provided with fans protection grill always factory mounted. For specific customer requests, mainly due to limiting transport conditions, it is still possible the unit is shipped with fans not fully assembled. In this circumstance, before switching on the unit, it is mandatory that the Customer/Installer completes the fans assembling on field - including fan protection grills -according to the instructions included into the manual.

It is the User’s responsibility to ensure that the unit is fit for the conditions of intended use and that both installation and maintenance are carried out by experienced personnel, capable of respecting all the recommendations provided by this manual.

It is important that the unit is adequately supported, as detailed in this manual. Noncompliance with these recommendations may create hazardous situations for the personnel.

WARNING

The unit has not been design to withstand loads and/or stress that may be transmitted by adjacent units, piping and/or structures.

Each external load or stress transmitted to the unit may break or cause breakdowns in the unit’s structure, as well as serious dangers to people. In these cases, any form of warranty will automatically become null and void.

The packaging material must not be disposed of in the surrounding environment or burnt.

DANGER

The unit must rest on a base which meets the characteristics specified in this manual; a base with inadequate characteristics is likely to become a source of serious injury to the personnel.

2 - Safety (continued)

2.2 Definitions

OWNER: means the legal representative of the company, body or

individual who owns the plant where unit has been installed; he/she has the responsibility of making sure that all the safety regulations specified in this manual are complied with, along with the national laws in force.

INSTALLER: means the legal representative of the company who has been given by the owner the job of positioning and performing the hydraulic, electric and other connections of unit to the plant: he/she is responsible for handling and properly installing the appliance, as specified in this manual and according to the national regulations in force.

OPERATOR: means a person authorised by the owner to do on unit all the regulation and control operations expressly described in this manual, that must be strictly complied with, without exceeding the scope of the tasks entrusted to him.

ENGINEER: means a person authorised directly by manufacturer or, in all EC countries, excluding Italy, under his full responsibility, by the distributor of product, to perform any routine and extraordinary maintenance operations, as well as any regulation, control, servicing operations and the replacement of pieces, as may be necessary during the life of the unit.

2.3 Access to the unit

disassemble connections, filters, joints or other line items

n do not use your hands to check for any pressure drops

n use tools in a good state of repair; be sure to have understood the

instructions before using them

n be sure to have removed all tools, electrical cables and any other

objects before closing and starting the unit again

2.5 Precautions against residual risks

Prevention of residual risks caused by the control system

n be sure to have perfectly understood the operating instructions

before carrying out any operation on the control panel

n when you have to work on the control panel, keep always the

operating instructions within reach

n start the unit only after you have checked its perfect connection to

the plant

n promptly inform the ENGINEER about any alarm involving the unit

n do not reset manual restoration alarms unless you have identified

and removed their cause

English

The unit must be placed in an area which can be accessed also by OPERATORS and ENGINEERS; otherwise the unit must be surrounded by a fence at not less than 2 meters from the external surface of the machine.

OPERATORS and ENGINEERS must enter the fenced area only after wearing suitable clothing (safety shoes, gloves, helmet etc.). The INSTALLER personnel or any other visitor must always be accompanied by an OPERATOR.

For no reason shall any unauthorised personnel be left alone in contact with the unit.

2.4 General precautions

The OPERATOR must simply use the controls of the unit; he must not open any panel, other than the one providing access to the control module.

The INSTALLER must simply work on the connections between plant and machine; he must not open any panels of the machine and he must not enable any control.

When you approach or work on the unit, follow the precautions listed below:

n do not wear loose clothing or jewellery or any other accessory tat

may be caught in moving parts

n wear suitable personal protective equipment (gloves, goggles

etc.) when you have to work in the presence of free flames (welding operations) or with compressed air

Prevention of residual mechanical risks

n install the unit according to the instructions provided in this

manual

n carry out all the periodical maintenance operations prescribed by

this manual

n wear a protective helmet before accessing the interior of the unit

n before opening any panelling of the machine, make sure that it is

secured to it by hinges

n do not touch air condensation coils without wearing protective

gloves

n do not remove the guards from moving elements while the unit is

running

n check the correct position of the moving elements’ guards before

restarting the unit

Prevention of residual electrical risks

n connect the unit to the mains according to the instructions

provided in this manual

n periodically carry out all the maintenance operations specified by

this manual

n disconnect the unit from the mains by the external disconnecting

switch before opening the electrical board

n if the unit is placed in a closed room, wear ear protection devices

n cut off connecting pipes, drain them in order to balance the

pressure to the atmospheric value before disconnecting them,

n check the proper grounding of the unit before start-up

n check all the electrical connections, the connecting cables, and in

particular the insulation; replace worn or damaged cables

2 - Safety (continued)

n periodically check the board’s internal wiring

n do not use cables having an inadequate section or flying

connections, even for limited periods of time or in an emergency

Prevention of other residual risks

n make sure that the connections to the unit conform to the

instructions provided in this manual and on the unit’s panelling

n if you have to disassemble a piece, make sure that it has been

properly mounted again before restarting the unit

n do not touch the delivery pipes from the compressor, the

compressor and any other piping or component inside the machine before wearing protective gloves

n keep a fire extinguisher fir for electrical appliances near the

machine

n on the units installed indoor, connect the safety valve of the

refrigeration circuit to a piping network that can channel any overflowing refrigerant outside

n remove and leak of fluid inside and outside the unit

n collect the waste liquids and dry any oil spillage

n periodically clean the compressor compartment, to remove any

fouling

n place a warning sign “do not turn on - maintenance in progress”

on the external disconnecting switch

n make sure that on-off remote controls are inhibited

n wear suitable personal protective equipment (helmet, safety

gloves, goggles and shoes etc.)

To carry out any measurements or checks which require the activation of the machine:

n work with the electrical board open only for the necessary time

n close the electrical board as soon as the measurement or check

has been completed

n for outdoor units, do not carry out any operations in the presence

of dangerous climatic conditions (rain, snow, mist etc.)

The following precautions must be always adopted:

n do not scatter the fluids of the refrigeration circuit in the

surrounding environment

n when replacing an eprom or electronic cards, use always suitable

devices (extractor, antistatic bracelet, etc.)

n to replace a compressor, the evaporator, the condensing coils or

any other weighty element, make sure that the lifting equipment is consistent with the weight to be lifted

n do not store flammable liquids near the unit

n do not disperse the refrigerant and the lubricating oil into the

environment

n weld only empty pipes; do not approach flames or other sources

of heat to refrigerant pipes

n do not bend/hit pipes containing fluids under pressure

2.6 Precautions during maintenance operations

Maintenance operations can be carried out by authorised technicians only.

Before performing any maintenance operations:

n disconnect the unit from the mains with the external disconnecting

switch

n in air units with independent compressor compartment, do not

access the fan compartment unless you have disconnected the machine by the disconnecting switch on the board and you have placed a warning sign “do not turn on - maintenance in progress”

n contact manufacturer for any modifications to the refrigeration,

hydraulic or wiring diagram of the unit, as well as to its control logics

n contact manufacturer if it is necessary to perform very difficult

disassembly and assembly operations

n use only original spare parts purchased directly from manufacturer

or the official retailers of the companies on the recommended spare parts list

n contact manufacturer if it is necessary to handle the unit one year

after its positioning on site or if you wish to dismantle it.

2 - Safety (continued)

corrente antes

ATTENTION! Don’t leave the unit with water inside hydraulic circuit during winter or when it is in stand by. ATTENZIONE! Non lasciare l’unità con acqua nel circuito idraulico durante l’inverno o quando non è funzionante. ATTENTION! Ne laissez pas l’unitè avec de l’eau dans le circuit hydraulique pendant l’hiver ou quand elle ne travaille pas. WARNUNG! Lassen Sie nicht das Wasser in die Schaltung während des Winters oder wenn es nicht funktionient. ¡ATENCÍON! No deje el agua en el circuito hidráulico durante el invierno o cuando no esta trabajando.

PRODUCT CODE

2.7 Safety labels

Identification of the refrigerant - External door

USARE SOLO

R134a

SPECIAL ESTER OIL

RECUPERARE FLUIDO - NON DISPERDERE NELL’AMBIENTE - REGOLAMENTO CEE N° 3093/94

USE ONLY

Electrical warning - Adjacent to the master switch

ATTENZIONE !

aprire togliere

ACHTUNG !

Vor offnen des

gehauses

hauptschalter

ausschalten

Read the instruction on the electrical board

CAUTION !

Disconnect

supply before

USARE SOLO

R513A

SPECIAL ESTER OIL

RECOVER - DO NOT VENT - EEC REGULATION N° 3093/94

RECUPERARE FLUIDO - NON DISPERDERE NELL’AMBIENTE - REGOLAMENTO CEE N° 3093/94

Prima di

tensione

electrical

opening

USE ONLY

ATTENTION !

Enlever

l’alimentation

electrique

avant d’ouvrir

ATENCION !

Cortar la

de abrir

el aparato

RECOVER - DO NOT VENT - EEC REGULATION N° 3093/94

Identification of the unit - Outside, on the right-hand front column

CODICE PRODOTTO NEUTRO

PRODUCT CODE

MODELLO

MODEL

0425

MO.NO

MATRICOLA

SERIAL NO.

ANNO DI COSTRUZIONE

Manuf. Year

REFR.

PS (LATO ALTA / LATO BASSA)

PS (HIGH / LOW SIDE)

TS (ALTA / BASSA)

TS (HIGH / LOW)

ALIM. POTENZA

MAIN SUPPLY

CORRENTE DI SPUNTO

LRA

CORRENTE A PIENO CARICO

FLA

POTENZA ASSORBITA

POWER INPUT

PRESS. MAX ESERCIZIO ACQUA

MAX WATER OPERATING PRESSURE

MASSA

MASS

SYSTEMAIR S.r.l. Via XXV Aprile 29 20825 BARLASSINA MB ITALIA MADE IN ITALY COD.NO: P35952

MODELLO:

MODEL

MATRICOLA:

SERIAL NO.

CODICE:

PRODUCT CODE

MODELLO:

MODEL

MATRICOLA:

SERIAL NO.

CODICE:

PRODUCT CODE

MODELLO:

MODEL

MATRICOLA:

SERIAL NO.

CODICE:

GWP

CIRCUIT 1 2 3 4

CHARGE (Kg)

(tCO₂eq)

bar

°C

V / PH / Hz

(max) A

(max) Kw

bar

ANNO DI COSTRUZIONE

Manuf. Year

ANNO DI COSTRUZIONE

Manuf. Year

ANNO DI COSTRUZIONE

Manuf. Year

Gravity centre - Base

English

On the compressor box

BEFORE OPENING THE PANEL, THE

UNIT MUST STAY SWITCHED OFF

FOR AT LEAST 5 MINUTES

WARNING

PRIMA DI APRIRE IL PANNELLO

L'UNITÀ DEVE RESTARE SPENTA PER

ALMENO 5 MINUTI

Circuit drain - Outside, on the right-hand front column

ON THIS LINE

KEEP LIFT HOOK

TENERE SU QUESTA LINEA

GANCIO DI SOLLEVAMENTO

Grounding connection on the electrical board, adjacent to the connection

2 - Safety (continued)

ATENCION! PERFIL AFILADO

Start-up warning - Outside the door

of the electrical board

INSERIRE LE RESISTENZE DI RISCALDAMENTO OLIO ALMENO 12 ORE PRIMA DI OGNI AVVIAMENTO (SE PREVISTE) PRIMA DELLA MESSA IN TENSIONE ASSICURARSI CHE LE VITI DEI CIRCUITI ELETTRICI SIANO SERRATE COMPLETAMENTE

ENERGIZE THE CRANCKCASE HEATER FOR AT LEAST 12 HOURS BEFORE EACH STARTING (IF FITTED) BEFORE TIGHTENING-UP, TO TIGHTEN ALL TERMINAL SCREWS ESPECIALLY THOSE IN MAIN CIRCUIT

OLSUMPFHEIZUNG (FALLS VORHANDEN) 12 STUNDEN VOR DEM START EINSCHALTEN VOR INBETRIEBNAHME ALLE SCHRAUBENVERBINDUNGEN NACHZIEHEN, BESONDERS DIE ELEKTRISCHEN ANSCHLUSSE

ALIMENTER ELECTRIQUEMENT LA RESISTANCE DE CARTER AU MOINS 12 HEURES AVANT CHAQUE DEMARRAGE (SI MONTE SUR LE PRODUIT) AVANT DE DEMARRER LA MACHINE, VERIFIER LE SERRAGE DE TOUTES LES BORNES A VIS, SPECIALEMENT DANS LE BOITIER ELECTRIQUE

ATENCIÓN ALIMENTAR ELÉCTRICAMENTE LA RESISTENCIA DE CARTER AL MENOS 12 HORAS ANTES DE CADA PUESTA EN MARCHA (SI ESTA EQUIPADA EN LA UNIDAD) ANTES DE LA PUESTA EN MARCHA, COMPROBAR QUE LOS BORNES ESTAN BIEN APRETADOS, ESPECIALMENTE EN EL CUADRO ELÉCTRICO

035B00057-000 MADE IN ITALY

ATTENZIONE

WARNING

WARNUNG

ATTENTION

ATENTION

Final Test Certificate - Inside the external door

Instruction for the lifting

Fitting identification - Adjacent to fittings

EIN - INLET

ENTRÉE - ENTRATA

AUS - OUTLET

SORTIE - USCITA

On the coil

ATTENZIONE! BORDI TAGLIENTI

VORSICHT! SCHARFE RÄNDER

CAUTION! SHARP EDGES

ATTENTION! BORDS COUPANTS

Warning - Safety valve vents

Warning - High temperature

zone adjacent to hot pipes or

components

2 - Safety (continued)

2.8 Safety regulations

REFRIGERANT DATA SAFETY DATA: R134a/R513A

ASHRAE Number: R134a

R134a

R513A

Toxicity Low

Contact with skin

Contact with eyes

Composition: R134a ASHRAE Safety classification: A1

ASHRAE Number: R513A Composition: HFO-1234yf /R134a ASHRAE Safety classification: A1

If sprayed, the refrigerant is likely to cause frost burns. If absorbed by the skin, the danger is very limited; it may cause a slight irritation, and the liquid is degreasing. Unfreeze the affected skin with water.

Remove the contaminated clothes with great care - in the presence of frost burns, the clothes may stick to the skin. Wash with plenty of warm water the affected skin.

In the presence of symptoms such as irritation or blisters, obtain medical attention.

Vapours do not cause harmful effects. The spraying of refrigerant may cause frost burns.

Wash immediately with a proper solution or with tap water for at least 15 minutes, and then obtain medical attention.

English

Very unlikely - should something happen, it will cause frost burns.

Ingestion

Inhalation

Recommendations

Prolonged exposure

Professional levels Recommended threshold: 1000 ppm v/v - 8 hours TWA.

Do not induce vomiting. Only if the patient is conscious, wash out mouth with water and give some 250 ml of water to drink. Then, obtain medical attention.

Remarkable concentrations in the air may have an anaesthetic effect, up to fainting.

The exposure to considerable amounts may cause irregular heartbeat, up to the sudden death of the patient. Very high concentrations may result in the risk of asphyxia, due to the reduction in the oxygen percentage in the atmosphere. Remove the patient to fresh air and keep warm and at rest.

If necessary, give oxygen. In case of breathing difficulties or arrest, proceed with artificial respiration.

In case of cardiac arrest, proceed with cardiac massage. Then, obtain medical attention.

Semiotics or support therapy is recommended. Cardiac sensitisation has been observed that, in the presence of circulating catecholamines such as adrenalin, may cause cardiac arrhythmia and accordingly, in case of exposure to high concentrations, cardiac arrest.

A study on the effects of exposure to 50,000 ppm during the whole life of rats has identified the development of benign testicle tumour.

This situation should therefore be negligible for personnel exposed to concentrations equal to or lower than professional levels.

Stability Not specified

Conditions to avoid Do not use in the presence of flames, burning surfaces and excess humidity.

2 - Safety (continued)

2.8 Safety regulations (continued)

REFRIGERANT DATA SAFETY DATA: R134a/R513A

Hazardous reactions

Hazardous decomposition products

General precautions

Respiratory system protection

Storage

Protective clothing

Accidental release measures

May react with sodium, potassium, barium and other alkaline metals.

Incompatible substances: magnesium and alloys with magnesium concentrations > 2%.

Halogen acids produced by thermal decomposition and hydrolysis.

Do not inhale concentrated vapours. Their concentration in the atmosphere should not exceed the minimum preset values and should be maintained below the professional threshold. Being more weighty than the air, the vapour concentrates on the bottom, in narrow areas. Therefore, the exhaust system must work at low level.

If you are in doubt about the concentration in the atmosphere, it is recommended to wear a respirator approved by an accident-prevention

Authority, of the independent or oxygen type.

Cylinders must be stored in a dry and fresh place, free from any fire hazard, far from direct sunlight or other sources of heat, radiators etc.

Keep a temperature below 50 °C.

Wear overalls, protective gloves and goggles or a mask.

It is important to wear protective clothing and a respirator.

Stop the source of the leak, if you can do this without danger. Negligible leaks can be left evaporating under the sun, providing that the room is well ventilated.

Considerable leaks: ventilate the room. Reduce the leak with sand, earth or other absorbing substances.

Make sure that the liquid does is not channelled into gutters, sewers or pits where the vapours are likely to create a stuffy atmosphere.

Disposal

Fire fighting information Not flammable in the atmosphere.

Cylinders The cylinders, if exposed to fire, shall be cooled by water jets; otherwise, if heated, they may explode.

Protective fire fighting equipment In case of fire, wear an independent respirator and protective clothing.

The best method is recovery and recycling. If this method is not practicable, dispose according to an approved procedure, that shall ensure the absorption and neutralization of acids and toxic agents.

2 - Safety (continued)

2.8 Safety regulations (continued)

LUBRICANT OIL DATA SAFETY DATA: ESTER OIL

Classification Not harmful.

May cause slight irritation. Does not require first aid measures. It is recommended to follow usual

Contact with skin

Contact with eyes Wash thoroughly with a suitable solution or tap water.

Ingestion Seek medical advice immediately.

Inhalation Seek medical advice immediately.

Conditions to avoid

Protection of the respiratory system

personal hygiene measures, including washing the exposed skin with soap and water several times a day.

It is also recommended to wash your overalls at least once a week.

Strong oxidising substances, caustic or acid solutions, excess heat.

May corrode some types of paint or rubber.

Use in well ventilated rooms.

English

Protective clothing

Accidental release measures

Disposal

Fire fighting information

Cylinders The cylinders exposed to a fire will be cooled with water jets in case of fire.

Fire fighting protective equipment In case of fire, wear an independent respirator.

Always wear protective goggles or a mask. Wearing protective gloves is not mandatory, but is recommended in case of prolonged exposure to refrigerant oil.

It is important to wear protective clothing and, especially, goggles.

Stop the source of the leak. Reduce the leak with absorbing substances (sand, sawdust or any other absorbing material available on the market).

The refrigerant oil and its waste will be disposed of in an approved incinerator, in conformity with the provisions and the local regulations applicable to oil waste.

In the presence of hot liquid or flames, use dry powder, carbon dioxide or foam. If the leak is not burning, use a water jet to remove any vapours and to protect the personnel responsible for stopping the leak.

3 - Transport, Lifting and Positioning

Refrigerators are supplied assembled (apart from standard antivibrating rubber supports, that will be installed on site). The equipment are full of refrigerant and oil, in the quantity required for a proper operation.

3.1 Inspection

When the unit is delivered, it is recommended to check it carefully and to identify any damage occurred during transportation. The goods are shipped ex-factory, at the buyer’s risk. Check that the delivery includes all the components listed in the order.

In case of damage, note it down on the carrier’s delivery note and issue a claim according to the instructions provided in the delivery note.

In the presence of any serious damage, that does not affect the surface only, it is recommended to inform manufacturer immediately.

Please note that manufacturer may not be held liable for any damage to the equipment during transportation, even though the carrier has been appointed by the factory.

3.2 Lifting

The unit must be lifted by using the hooks inserted into the relevant eyebolts (see the figure).

It is recommended to use a spacer to prevent cables from damaging the unit (see the figure).

Before positioning the unit, make sure that the place of installation is appropriate and sturdy enough to hold the weight and to withstand the stress caused by the operation of the whole assembly.

Do not displace the unit on rollers, and do not lift it with a lift truck.

Unit must be lifted carefully.

WARNING

To lift unit slowly and regularly.

To lift and displace the unit:

Insert and secure eyebolts into the holes marked on the frame.

Insert spacer between cables.

Hook near the barycentre of the unit.

The cables must be long enough to form, if tensioned, an angle

of at least 45° with respect to the horizontal plane.

For lifting operations, use only tools and material fit for this purpose, in accordance with

WARNING

accident-prevention regulations.

WARNING

3 - Transport, Lifting and Positioning (continued)

During the lifting and handling of the unit, be careful not to damage the finned pack of the coils positioned on the sides of the unit.

The sides of the unit must be protected by cardboard or plywood sheets.

English

The eyebolts must be mounted on the unit whenever it shall be displaced and then lifted again.

3.3 Anchoring

It is not essential to secure the unit to the foundations, unless in areas where there is a serious risk of earthquake, or if the appliance is installed on the top of a steel frame.

WARNING

It is recommended not to remove the protective plastic envelope, that should prevent scraps from penetrating into the appliance and any damage to the surfaces, until the unit is ready for operation.

The lifting eyebolts protrude from the base of the unit; it is therefore recommended to remove them once the unit has been lifted and positioned, if in your opinion they are likely to become a source of hazard and injury.

3.4 Storage

When the unit is to be stored before installation, adopt a few precautions to prevent any damage or risk of corrosion or wear:

n plug or seal every single opening, such as water fittings

n do not store the appliance in a room where the temperature

exceeds 50 °C and, if possible, do not expose to direct sunlight

n minimum storage temperature is -20 °C

n it is recommended to store the unit in a roof where traffic is

minimized, to prevent the risk of accidental damage

n the unit must not be washed with a steam jet

n take away and leave to the site manager all the keys providing

access to the control board

Finally, it is recommended to carry out visual inspections at regular intervals.

4 - Installation

4.1 Positioning of the unit

Before installing the unit, make sure that the structure of the building and/or the supporting surface can withstand the weight of the

DANGER

These units have been designed for outdoor installation on a solid surface. Standard accessories include antivibrating rubber supports, that must be positioned under the base.

When the unit is to be installed on the ground, it is necessary to provide a concrete base, to ensure a uniform distribution of the weights.

As a general rule, no special sub-bases are required. However, if the unit is to be installed on the top of inhabited rooms, it is advisable to rest it on spring shock absorbers (optional), that will minimise the transmission of any vibration to the structures.

To choose the place of installation of the unit, bear in mind that:

n the longitudinal axis of the unit must be parallel to the direction of

prevailing winds, so as to ensure a uniform distribution of the air on finned exchangers

appliance. The weights of the units are listed in Chapter 8 of this manual.

4.2 Spring Isolator Installation

Prepare the base, that must be flat and plane.

Lift the appliance and inser t shock absorbers as follows:

n the unit must not be installed near boilers’ vent pipes

n the unit must not be installed leeward with respect to sources of

air contaminated by greases, such as, for example, the outlets to kitchen exhaust hoods into the atmosphere. Otherwise, the grease is likely to deposit on the fins of the refrigerant /air exchangers, and would fix every type of atmospheric impurity, resulting in the quick clogging of the exchangers

n the unit must not be installed in areas subject to considerable

snow falling

n the unit must not be installed in areas subject to flooding, under

gutters etc.

n the unit must not be installed in air shafts, narrow courts or other

small places, where the noise may be reflected by the walls or the air ejected by fans may short-circuit itself on refrigerant/air heat exchangers or condenser

n the place of installation must be have all the necessary spaces

for air circulation and maintenance operations (see Chapter 8).

4.3 Place of installation

In the place of installation the air temperature average during 24 hours must be lower than 40°C.

The place of installation's altitude must be lower than 2000 m.

4 - Installation (continued)

4.4 External Water Circuit

The flow switch and the filter water, although not included in the supply, must always be fitted such as plant components. Their installation is mandatory for warranty.

The external hydraulic circuit must ensure the water flow to the evaporator under any working

WARNING

The circuit shall be composed by the following elements:

A circulation pump which can ensure the necessary capacity

and discharge head.

The capacity of the primary hydraulic circuit should not be less

than the minimum water volumes shown in the table below, in order to prevent the repeated start-up of the compressor and any damage to it. If the water capacity in the primary piping of the circuit and in the evaporator is lower than this value, an insulated storage tank shall be installed.

SYSCREW AIR EVO HSE 380-450-510-590-660 730-810

Recommended system chilled water volume

SYSCREW AIR EVO HSE 900-980 1060-1160-1260

Recommended system chilled water volume

Minimum water contents at normal air conditioning applications

The following formula must be respected Vmin = Cap * MinCapStep * 28,8 , where Cap = Nominal Unit Capacity [kW] at conditions of installation MinCapStep = Minimum unit capacity step [%] shown in Technical Data

Table

If the application is a process cooling type, the minimum system chilled water volume is generally higher than above recommended.

In this case, please contact your nearest Systemair Sales Office

A membrane expansion vessel provided with safety valve with

vent, that must be visible.

NOTE

or adjustment conditions.

MINIMUM WATER VOLUMES

l 2334 2953

l 3608 5017

The capacity of the expansion vessel must allow for an expansion of at least 2% of the volume of the fluid in the circuit (evaporator, piping, user circuit and standby tank, if any). The expansion vessel needs not be isolated, because no water can circulate inside it.

As a general rule, the flow switch shall be mounted on a horizontal pipe, at a distance from the curves equal to 10 times the diameter of the pipe and far from valves or other components that are likely to hinder the water flow upstream of or downstream from the flow switch.

The bleed valves must be mounted on the highest point of the pip-

ing.

The stop valves must be mounted on the piping of the water en-

tering/leaving the evaporator.

The drain points (provided with plugs, cocks etc.) must be ar-

ranged in the lowest point of the piping.

The flow switch must be connected (terminals 1-2) as shown in the wiring diagram of the

WARNING

PH 7,5 - 9 Electrical conductivity 10 - 500 μS/cm Total hardness 4,5 - 8,5 dH Temperature < 60 [°C] Alkalinity (HCO Alkalinity / Sulphates (HCO Sulphates (SO Chlorides (Cl-) < 50 ppm Free Chlorine < 0,5 ppm Phosphates (PO Ammonia (NH3) < 0,5 ppm Ammonium Ion (NH Manganese Ion (Mn2+) < 0,05 ppm Free Carbon Dioxide (CO2) < 5 ppm Hydrogen Sufide (H2S) < 0,05 ppm Oxygen Content < 0,1 ppm Nitrates (NO Manganese (Mn) < 0,1 ppm Iron (Fe) < 0,2 ppm Aluminium (Al) < 0,2 ppm

Caution

If the water circuit is to be drained for a time exceeding one month, the circuit must be fully charged with nitrogen to prevent any risk of corrosion

by differential venting

“User’s Terminal Box”.

RECOMMENDED WATER COMPOSITION

) 70-300 ppm

) < 70 ppm

) < 100 ppm

/ SO

) > 1 ppm

) < 2 ppm

English

A flow switch will stop the unit when the water is not circulating or a flow rate problem occurs.

To install the flow switch, follow the manufacturer’s instructions.

4 - Installation (continued)

Then:

Provide the evaporator with a by-pass circuit equipped with a

valve to wash the plant.

Insulate the piping, to prevent the risk of heat loss.

Position a filter on the suction side of the evaporator of the heat

recovery condenser.

Standard hydraulic circuit

User side

Unit side

INLET

OUTLET

COMPONENTS

1 Shell & Tube Heat Exchanger 2 Water Filter 3 Pressure point/drain 4 Water outlet 5 Water inlet 6 Globe valve 7 Flexible pipe 8 By-pass valve

Before filling the circuit, it is important to check that it is free from any foreign matter, sand, gravels, rust, welding deposits, waste and other

WARNING

materials that may damage the evaporator.

When cleaning the lines, it is recommended to create a circuit bypass. It is important to mount a filtering medium (30 mesh) upstream of the chiller.

If necessary, the water required to fill the circuit must be treated to obtain the requested pH.

NOTE

SAFETY/CONTROL DEVICES

A Inlet water temp. sensor B Outlet water temp. sensor C Thermometer

FS Flow switch

Probes

4 - Installation (continued)

4.5 Water connections for base unit configuration (without hydraulic options)

The units are provided with fittings for hydraulic connections between heat exchangers and plant.

BT OUT

English

Each fitting is complete with sensor well to fasten temperature sensor (BT-IN and BT-OUT). Fittings are supplied separate and must be mounted during the installation of the unit.

BT IN

OUT

VICTAULIC JOINT

FITTING

VICTAULIC JOINT

FITTING

4 - Installation (continued)

4.6 Water connections for unit provided with hydraulic option

In case of hydraulic option installed (single/double pump), the water inlet/outlet fittings shall conform to the instructions provided by the plates affixed near the connection points.

General hydraulic layout with pump/s installed is shown in the image below.

DESCRIPTION

1 Pressure transducer (Outlet of HE)* 2 Pressure transducer (Inlet of HE)* 3 Air vent 4 Non-return valve 5 Butter fly valve 6 Pump 7 Safety valve

* Only for Variable flow hydraulic module

4 - Installation (continued)

4.7 Power supply

Before carrying out any operations on the electrical system, make sure that the unit is

DANGER

The manufacturer may not be held liable for any damage and/or injury caused by failure to comply with these precautions.

The unit conforms to EN 60204-1.

The following connections shall be provided:

n A 3-phase and grounding connection for the power supply

circuit.

n The electrical distribution system shall meet the power absorbed

by the appliance.

n The disconnecting and magnetothermal switches must be sized to

control the starting current of the unit.

n The power supply lines and the insulation devices must be

designed in such a way that every line independent.

n It is recommended to install differential switches, to prevent any

damage caused by phase drops.

n The fans and compressors are supplied through contactors

controlled from the control panel.

n Each motor is provided with an internal safety thermal device

and external fuses.

n The power supply cables must be inserted into dedicated

openings on the front of the unit, and the will enter the electrical board through holes drilled on the bottom of the board.

deenergised.

It is important that the appliance is grounded.

The company in charge of the installation shall conform to the standards applicable to outdoor electrical connections.

4.8 Electrical connections

The unit must be installed on site according to the Machinery Directive 2006/42/EC, Electromagnetic Compatibility Directive 2014/30/EU - as per EN 55011, Group 1, Class A, Pressure Equipment Directive 2014/68/EU and the usual procedures and standards applicable in the place of installation.

This equipment is intended only for industrial applications and must be installed on side according to the standards mentioned above

WARNING

The installar is responsible for ensuring the correct electrical installation and the use of correct materials.

WARNING

The unit must not be operated if its installation has not been carried out according to the instructions provided in this manual.

The power supply lines must consist of insulated copper conductors, dimensioned for the maximum absorbed current.

Connection to terminals must be performed according to the diagram of connections (User’s Terminal Box) provided in this manual and according to the wiring diagram which accompanies the unit.

WARNING

For 3-phase systems, check also that the unbalance between the phases does not exceed 2%. To perform this check, measure the differences between the voltage of each phase couple and their mean value during operation.

The maximum % value of these differences (unbalance) must not exceed 2% of the mean voltage.

and according also to the usual procedures and standards applicable in the place of installation.

Incorrect electrical installation and/or using incorrect materials may cause additional radio frequency emissions which may require mitigation measures

Before connecting the power supply lines, check that the available voltage value does not exceed the range specified in the Electric Data (Chapter

8).

English

If the unbalance is unacceptable, contact the Energy Distributor to solve this problem.

Supplying the unit through a line whose unbalance exceeds the permissible value will

WARNING

automatically void the warranty.

Electrical connections

4 - Installation (continued)

5 - Start-Up

The unit must be started for the first time by personnel suitably trained by one Authorised Service Centre. Failure to meet this requirement

WARNING

will immediately void the warranty.

The operations carried out by authorised personnel are limited to the start-up of the unit, and do not include any other operation on the plant, such as, for example, electrical and hydraulic connections etc.

NOTE

All the other operations before start-up, including oil pre-heating for at least 12 hours, must be performed by the Installer.

5.1 Preliminary check

The checks listed below shall be performed before star ting the unit and before the arrival of the personnel authorised.

n Check the section of power supply and grounding cables; make

sure that terminals are tightened and check the correct operation of contactors, with the main switch open.

n Check that any voltage and phase variation in the power supply

does not exceed the prefixed thresholds.

n Connect the contacts of the flow switch and the thermal relay of

the pump and of the other devices (if any), to terminals 1-2 and 3-4, respectively.

n Check that the components of the external water circuit (pump,

user equipment, filters, power supply tank and reservoir, if any) have been installed properly, and according to the manufacturer’s instructions.

n Check the filling of the hydraulic circuits, and make sure that

the fluid circulation is correct, without any trace of leaks and air bubbles. If you use ethylene glycol as antifreeze, check that its percentage is correct.

n Check that the direction of rotation of the pumps is correct, and

that fluids have been circulating for at least 12 hours for both pumps. Then, clean the filters on the suction side of the pumps.

n Adjust the liquid distribution network in such a way that the flow

rate is within the specified range.

n Check that the water quality is up to the specifications.

n Check that oil heaters, if any, have been turned on at least 12

hours before.

n Start the pump and check that the water flow is correct.

n Set the desired fluid temperature on the control board.

n Start the appliance (see Chapter 6).

n Check the correct direction of rotation of compressors. Scroll

compressors cannot compress the refrigerant when they rotate in the opposite direction. To make sure that they are rotating in the correct direction, simply check that, just after the star t-up of the compressor, the pressure drops on the LP side and rises on the HP side. Furthermore, if a scroll compressor rotate in the opposite direction, there is a considerable rise in the sound level of the unit, as well as in a dramatic reduction of current absorption compared to normal values. In case of wrong rotation, the scroll compressor can be definitely damaged. Phase monitor is assembled in the unit as a standard to prevent wrong compressors rotation.

n After about 15 minutes of operation check that there are no

bubbles, through the sight glass on the liquid line.

The presence of bubbles may indicate that a part of the refrigerant charge has been released in one or more points. It is important to remove

WARNING

n Repeat the start-up procedure after removing the leaks.

n Check the oil level in the compressor’s sight glass.

these leaks before proceeding.

5.3 Checking the operation

Check the following:

n The temperature of the water entering the evaporator.

n The temperature of the water leaving the evaporator.

n The level of the water flow rate in the evaporator, if possible.

n The current absorption upon the start of the compressor and in

case of stabilised operation.

n The fan’s current absorption.

Check that the condensing and evaporation temperatures, during operation at high and low pressure detected by the pressure gauges of the refrigerant, are within the following range:

(On the units not provided with HP/LP pressure gauges for the refrigerant, connect a pressure gauge to the Shrader valves on the refrigeration circuit).

English

5.2 Start-up

Start-up sequence:

n Turn on the Main switch (at least 12 hours before).

n Check that the oil in the compressor has reached the requested

temperature (the minimum temperature outside the pan must be approx. 40°C) and that the auxiliary control circuit is energised.

n Check the operation of all the external equipment, and make sure

that the control devices of the plant are properly calibrated.

HP side

LP side

Approx. 15 to 21 °C above the temperature of the air entering the condenser.

Approx. 2 to 7 °C below the temperature of the leaving chilled water.

5.4 Delivery to the customer

n Train the user according to the instructions provided in Section 6.

6.1 General information

6 - Control

Introduction

This document contains the information and the operating instructions for 2 screw compressors (step type and inverter driven type).

This information is for the after-sales service and the production operators, for the end-of-line testing.

Main characteristics

– Microprocessor control

– User-friendly keyboard

– Proportional and integral control of the return water temperature

or leaving water temperature (LWT or RWT)

– Access code to enter the Service Level

– Access code to enter User Level

– Basic functions without access code

– Alarm and LED

– Backlighted LCD

– Rotation of the compressor operation

The control system consists of:

a) Main Board. The units are provided with a microprocessor card

which is fully programmed by default for the control of a chiller of cold only type with 2 circuits, 1 compressor for circuit, a HP transducer and a LP transducer for Circuit.

b) EEV controllers (two separate drivers) for the management of the

electronic expansion valves.

C) Keyboard & Display Terminal.

– Oil return function - Standard for the inverter compressor,

optional (oil switch device) for step compressor

– Night mode (or Low Noise) control

– Counting of the pump/compressors’ hours of operation

– Display of discharge and suction pressure values

– Display of temperature sensor

– History of stored alarms (option)

– Built-in serial communication RS485 port with Modbus protocol

to connect the main board to a BMS network. This built-in port is available as standard only in the case no extra network control systems (netTune) are selected with the units.

– Built-in serial communication Ethernet port with two possible

protocols (Modbus or Bacnet, in case also at the same time). In case of Bacnet communication protocol it is needed to activate a license.

– Custom protocols are available on request

The following accessories can be also connected:

– Remote Display Terminal.

The terminal makes it possible to carry out the following operations:

– the change of the main operating parameters

– the display of the detected alarms

– the display of all the measured quantities

The terminal and the card are connected by a 6-way phone cable.

The connection of the terminal to the basic card is not essential for the normal operation of the controller.

6 - Control (continued)

Keypad Functions

BUTTON DESCRIPTION

ESC Move back from one mask to higher level menu

ALARM

PRG Used to enter in the main menu tree

Press it to enter in

a) Alarm Status a.1) Press again to reset each single alarm,

if present (one by one)

a.2) Scroll down up to the end of the alarm

list (if an alarm list is present) and keep pressed it for 3 second to reset all alarms in one time

b) Alarm Data logger

Scroll a list upwards or increase a value highlighted by the cursor

6.2 Display/Keyboard

The display is an LCD 8 lines x 22 columns. The quantities and the information about the operation of the unit are alternated in the form of subsequent screens, named “masks”.

It is possible to move inside the masks with the terminal keys as described below.

6.3 Main Control Functions

In the main mask the cursor flashes at the bottom right corner of the display, in correspondence of the Quick Menu.

English

DOWN

ENTER

Scroll a list downwards or decrease a value highlighted by the cursor

Enter in the selected menu or confirm a value highlighted by the cursor

By pressing UP/DOWN keys, it is possible to select the following items of the Quick Menu.

Setting On/Off Information

6 - Control (continued)

MAIN MASK TREE

POWER

UP and DOWN key to switch unit ON and OFF

SETPOINT

LWT/RWT setpoints can be modified in a range decided by manufacturer.

The Actual Setp. is the setpoint of regulation for actual working mode.

READINGS

Water Outlet Temperature Water Inlet Temperature Outdoor Air Temperature

READINGS CIRC.1

Condensating Pressure Saturated Condensating Pressure

Discharge Temperature

READINGS CIRC.1

Main readings about evaporating pressure/ temperature, superheat and opening of the electronic valve both in steps and percentage.

Legenda:

Proceed forward

Go back

READINGS CIRC.1

Compressor Status info:

Power Request by regulator

On/off

Current Power given by compressor

6 - Control (continued)

English

READINGS CIRC.1

Compressor Status info:

Actual functioning status of compressor

READINGS CIRC.1

Compressor Status info:

Options status inactive / (active)

READINGS CIRC.1

Absorbed current read by TA

Theorical capacity of compressor depending on aboserbed current

READINGS CIRC.1

Actual fans speed in percentage divided into same groups shown on electrical scheme.

READINGS CIRC.1

Condensating Pressure Saturated Condensating Pressure

Discharge Temperature

READINGS CIRC.2

Main readings about evaporating pressure/ temperature, superheat and opening of the electronic valve both in steps and percentage.

6 - Control (continued)

READINGS CIRC.2

Compressor Status info:

Power Request by regulator

On/off

Current Power given by compressor

READINGS CIRC.2

Compressor Status info:

Actual functioning status of compressor

READINGS CIRC.2

Compressor Status info:

Options status inactive / (active)

READINGS CIRC.2

Absorbed current read by TA

Theorical capacity of compressor depending on aboserbed current

READINGS CIRC.2

Actual fans speed in percentage divided into same groups shown on electrical scheme.

UNIT DIGITAL INPUTS

Status open/close of digital inputs.

6 - Control (continued)

English

DIGITAL INPUTS CIRC.1

Status open/close of digital inputs related to circuit 1.

DIGITAL INPUTS CIRC.2

Status open/close of digital inputs related to circuit 2.

UNIT DIGITAL OUTPUTS

Status open/close of digital outputs.

DIGITAL OUTPUTS CIRC.1

Status open/close of digital outputs related to circuit 1.

DIGITAL OUTPUTS CIRC.2

Status open/close of digital outputs related to circuit 2.

SOFTWARE INFORMATION

Name and version of the software installed in the unit and also versions of main firmwares.

6 - Control (continued)

HARDWARE INFO

Basic informations and actual IP address of the main board.

HOURS COUNTERS

Working hours counters of the main components of the unit and of the unit itself.

UNIT INFORMATIONS

Informations about actual date/time, when it occured the last power off of the unit, how much time it assed since the unit was turned off last time.

Every digit of the password can be modified by up/down key to the desired value

USER PASSWORD

MAIN MENU

Several sub-menu at disposal:

A. Unit configuration B. Parameters configuration C. Pump D. Compressor E. EEV F. Fan G. Setting H. Safety I. Alarm log L. Logout

Use UP/DOWN keys to select the desired menu and press ENTER to access it.

For User only some sub-menu are accessible.

6 - Control (continued)

SETTING MENU

Several sub-menu at disposal:

1. Options

2. Date/Time

3. Language

4. Serial Ports

5. Pwd Change

6. Initialization

7. UoM

Use UP/DOWN keys to select the desired menu and press ENTER to access it. For User only some sub-menu are accessible.

DATE/TIME SUB-MENU

English

Settable format and actual date/time.

LANGUAGE SUB-MENU

ALARM LOG MENU

TIME ZONE

Settable time zone to have automatic update of timing respect to installation site.

Settable language for software masks.

In case of alarms occured since the last memory cleared, then it shows a full list of alarms occured with date/time and identification number of the alarm.

LOGOUT MENU

Press ENTER to log out from user menu.

6 - Control (continued)

ALARM TREE

NO ALARMS ACTIVE ALARMS ACTIVE

Press ALARM key for 3 second to reset alarm if the cause which generated the alarm is solved.

In presence of more than one active alarm: press ALARM key for 3 second to reset all alarms (if causes which generated the alarm are solved).

Press ENTER key to access to

Alarm Log Menu

6 - Control (continued)

List of parameters - IN/OUT MENU

Notes:

n° circuits : 2 compressor circuit 1: fixed speed step screw compressor circuit 2: variable speed (inverter driven) screw

Variable Name Type Description

U1 U2 U3 U4 U5 U6 U7 U8 U9

U10

Variable Name Type Description

ID1 ID2 ID3 ID4 ID5 ID6 ID7 ID8

ID9 ID10 ID11 ID12

ID13H ID14H

ID15 ID16 ID17 ID18

Ntc 4-20mA 4-20mA Ntc Ntc

Ntc-HT Ntc-HT

24Vdc 24Vdc 24Vdc 24Vdc 24Vdc 24Vdc 24Vdc 24Vdc 24Vdc 24Vdc 24Vdc 24Vdc 230Vdc 230Vdc 24Vdc 24Vdc 24Vdc 24Vdc

English

ANALOG INPUTS - control board

Leaving / Outlet water temperature Pressure from high pressure transducer 1 Pressure from high pressure transducer 2 Entering / Inlet water temperature Outdoor air temperature Not used Not used Not used Discharge probe temperature circuit 1 Discharge probe temperature circuit 2

DIGITAL INPUTS - control board

Remote On/Off Status Low pressure switch circuit 1 Status Low pressure switch circuit 2 Status Not used Serious Alarm (phase monitor) Status Thermal protection compressor 1 Status Oil level switch compressor 1 Status Not used Not used Not used Not used Water flow switch / Interlock Status High pressure switch comrpessor 1 Not used Thermal protection fan circuit 1 step 2 Status Thermal protection fan circuit 1 step 1 Status Thermal protection fan circuit 2 step 2 Status Thermal protection fan circuit 2 step 1 Status

INPUTS / OUTPUTS - expansion card

Variable Name Type Description

U1 U2 U3 U4 U5 U6 U7 U8 U9

U10

Remote double set point Part load / switch off Circuit 1 Part load / switch off Circuit 2 Thermal shared fan deck Not used Not used Shared fan deck (control signal) Analog remote set point Not used Not used

6 - Control (continued)

List of parameters - IN/OUT MENU (continued)

ANALOG OUTPUTS - control board

Variable Name Type Description

Y1 Y2 Y3 Y4 Y5 Y6

Variable Name Type Description

NO1 NO2 NO3 NO4 NO5 NO6 NO7 NO8

NO9 NO10 NO11 NO12 NO13 NO14 NO15 NO16 NO17 NO18

0/10Vdc 0/10Vdc 0/10Vdc 0/10Vdc 0/10Vdc 0/10Vdc

DIGITAL OUTPUTS - control board

SPST SPST SPST SPST SPST SPST SPST SPDT SPST SPST SPST SPDT SPDT SPDT SPDT SPST SPST SPST

Inverter fans Circuit 1 Step 2 Inverter fans Circuit 1 Step 1 Inverter fans Circuit 2 Step 2 Inverter fans Circuit 2 Step 1 Inverter pump evaporator Not used

Evaporator heater status Compressor 1 Circuit 1 Solenoid CR1 status Compressor 1 Circuit 1 Solenoid CR2 status Compressor 1 Circuit 1 Solenoid CR3 status Compressore 1 circuito 1 PartWindingA status Compressore 1 circuito 1 PartWindingB status Pump status Alarm status Not used Not used Compressor cranckase heater status Not used Not used Not used Circuit 1 fans step 2 (group with fans > ) Status Circuit 1 fans step 1 (group with fans < ) Status Circuit 2 fans step 2 (group with fans > ) Status Circuit 1 fans step 1 (group with fans < ) Status

DIGITAL OUTPUTS * - expansion card

Variable Name Type Description

NO1

NO2

NO3

NO4

NO5

NO6

ECO valve system 1 status ECO valve system 2 status Liquid injection valve system 1 status Not used Share fan deck fans (on-off) status Not used

6 - Control (continued)

Alarms

Alarm code Description Type Notes

0 1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 High suction pressure Comp 1 Circuit 2 46 Low suction pressure Comp 1 Circuit 2 47 High current Comp 1 Circuit 2 48 High ratio pressure Comp 1 Circuit 2 49 Low ratio pressure Comp 1 Circuit 2 50 Low delta pressure Comp 1 Circuit 2 51 High discharge pressure Comp 1 Circuit 2 52 LOP - EEV Valve A circuit 2 53 LOP - EEV Valve B circuit 2 54 MOP - EEV Valve A circuit 2 55 MOP - EEV Valve A circuit 2 56 EEV A Motor Error circuit 2 57 EEV B Motor Error circuit 2 58 Low suction temperature EEV valve A Circuit 2 59 Low suction temperature EEV valve B Circuit 2 60 61

Error in the number of retain memory writings Error in retain memory writings Water Flow Switch / Interlock Phase monitor alarm Antifreeze High difference RWT/LWT Wrong trend RWT/LWT Returning water temperature probe Leaving water temperature probe Discharge pressure transducer circuit 1 Discharge pressure transducer circuit 2 External air temperature probe Discharge temperature probe circuit 1 Discharge temperature probe circuit 2 High discharge temperature Comp 1 Circuit 1 Low discharge pressure Comp 1 Circuit 1 High suction pressure Comp 1 Circuit 1 Low suction pressure Comp 1 Circuit 1 High current Comp 1 Circuit 1 High ratio pressure Comp 1 Circuit 1 Low ratio pressure Comp 1 Circuit 1 Low delta pressure Comp 1 Circuit 1 High discharge pressure Comp 1 Circuit 1 LOP - EEV Valve A Circuit 1 LOP - EEV Valve B Circuit 1 MOP - EEV Valve A Circuit 1 MOP - EEV Valve B Circuit 1 EEV A Motor Error Circuit 1 EEV B Motor Error Circuit 1 Low suction temperature EEV valve A Circuit 1 Low suction temperature EEV valve B Circuit 1 High condensing temperature Circuit 1 Suction pressure transducer circuit 1 Suction temperature probe circuit 1 S3 probe circuit 1 S4 probe circuit 1 Battery low charge EVD circuit 1 EEPROM Alarm EVD circuit 1 Incomplete closing EVD circuit 1 Emergency closing EVD circuit 1 Firmware not compatible EVD circuit 1 Configuration Error EVD circuit 1 Offline EVD circuit 1 High discharge temperature Comp 1 Circuit 2 Low discharge pressure Comp 1 Circuit 2

High condensing temperature Circuit 2 Suction pressure transducer circuit 2

User reset User reset

Auto reset until counter

Auto reset User reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset User reset User reset User reset User reset User reset User reset User reset User reset User reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset

English

6 - Control (continued)

Alarm code Description Type Notes

62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

100 101 102 103 104

(*) The Inverter Compressor alarms (critical and fault) must be resetted with support of Systemair Service personnel. Call your Service Center by providing the Alarm/Fault code shown on the controller display in order to make possible a further analysis of the problem occurred.

(**) Alarm/Fault code shown in the pump inverter display. After auto reset (2 times) the manual reset is possible from pump inverter display

Suction temperature probe circuit 2 S3 probe circuit 2 S4 probe circuit 2 Battery low charge EVD circuit 2 EEPROM Alarm EVD 2 Incomplete closing EVD circuit 2 Emergency closing EVD circuit 2 Firmware not compatible EVD circuit 2 Configuration Error EVD circuit 2 EVD offline EVD circuit 2 Pcoe 1 offline Wrong configuration on Pcoe 1 Low pressure switch circuit 1 Low pressure switch circuit 2 Overload compressor 1 circuit 1 High pressure switch circuit 1 Oil level switch circuit 1 Overload fan deck 1 circuit 1 Overload fan deck 2 circuit 1 Overload fan deck 1 circuit 2 Overload fan deck 2 circuit 2 High pressure switch circuit 2 Oil level switch circuit 2 Overload compressor 1 circuit 2 Low superheat alarm EEV valve A circuit 1 Low superheat alarm EEV valve B circuit 1 Low superheat alarm EEV valve A circuit 2 Low superheat alarm EEV valve B circuit 2 Overload fan deck shared Current transformer circuit 1 Current transformer circuit 2 Maintenance hours compressor 1 circuit 1 Maintenance hours compressor 1 circuit 2 Compressor 1 circuit 1 offline (Inverter) Compressor 1 circuit 2 offline (Inverter) Returning water temperature probe Leaving water temperature probe Compressor 1 circuit 1 Critical (Inverter) Compressor 1 circuit 1 Fault (Inverter) Compressor 1 circuit 2 Critical (Inverter) Compressor 1 circuit 2 Fault (Inverter) Pump Inverter Alarm Pump Inverter Fault

Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset Auto reset

Auto reset Auto reset until counter Auto reset until counter

User reset

Auto reset

User reset

Auto reset

User reset

Auto reset

Manual reset (*) Manual reset (*) Manual reset (*)

Manual reset (*) Auto reset (2 times only) (**) Auto reset (2 times only) (**)

INVERTER PUMP ALARM LIST

S.NO. WARNING NO. DESCRIPTION

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15

W/A2 W/A7 W/A8 W/A9 W/A10 W/A11 W/A12 W/A27 W/A35 W/A37 A4 A13 A14 A29 A30

DC over voltage

DC under voltage

Inverter overloaded

Motor ETR over temperature

Motor thermistor over temperature

Brake chopper short-circuited

Out of frequency range

Phase Imbalance

Mains phase loss

Drive over temperature Motor phase U missing

Live zero error

Torque limit

Over Current Ground fault

S.NO. WARNING NO. DESCRIPTION

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

A31 A32 A47 A65 A244 A16 A33 A38 A39 A45 A46 A48 A69 A79 A91

Motor phase V missing

Motor phase W missing

24 V supply low

Control Board Over-temperature

Heatsink temp

Short Circuit

Inrush fault

Internal fault

Heatsink sensor

Earth fault 2

Pwr. card supply

1.8 V supply low Pwr. Card Temp Illegal PS config

Analog input 54 wrong settings

6 - Control (continued)

6.4 Setpoint

Pressing the Set key allows you to enter the Set point level accessible to the user. The parameters that can be set are listed below, along with the limit values and the default values (standard shop settings):

User parameters Control mode Min value Max value Default

Cooling Setpoint

Cooling Setpoint - glycol water 10%

Cooling Setpoint - glycol water 40%

6.5 Protection and Safety Equipment

Refrigeration system

The units are filled with R134a/R513A refrigerant fluid of non hazardous type (group II). Safety device (pressure switch and safety valves) with the sets below indicated are provided on the discharge and suction line of each circuit.

Discharge Line

Pressure relief valve 22 bar. Pressure switch 19,7 bar.

Suction line

Pressure relief valve 14.5 bar. Pressure switch 0.5 bar.

RWT Return Control 8 18 12

LWT Leaving Control 5 15 7

RWT Return Control 3 18 12

LWT Leaving Control 0 15 7

RWT Return Control -5 18 12

LWT Leaving Control -8 15 7

Compressor protection

Compressors are equipped with a heating element to prevent oil dilution, which may result in remarkable risks of failure of compressors.

The windings of the compressors’ motors are provided with a thermal protection.

An accessory kit for thermal protection (ACB) is available, for any overcurrent of compressors, which shall be shop-mounted.

Electrical flow switch

A electrical flow switch must be installed, to prevent the unit working in case of insufficient circulation of the chilled fluid.

English

Frost Protection for the Chilled Fluid

These units are provided with frost protection for the chilled fluid. This protection consists of an electrical resistor positioned in contact with the coolant/circulating fluid exchanger, which is activated (although the unit is off) when the temperature of the fluid drops below 5 °C the standard value for a non-glycol unit.

If the leaving water temperature drops below 4 °C (standard value for a non-glycol unit) the machine’s antifreeze alarm is activated. If the circulating fluid is water, before the beginning of the cold season it is advisable to drain the circuit to prevent water frosting.

If the circuit cannot be drained, it is essential to avoid de-energizing the unit, so as to permit the activation, when necessary, of the frost protection.

The electrical flow switch must be carefully installed, according to the instructions given by

WARNING

The electrical flow switch must be installed on the pressing side of the circulation pump for the fluid, just upstream of the heat exchanger’s inlet. The electrical flow switch must be installed in a horizontal straight length of piping, in a position reasonably far (both upstream and downstream) from localized pressure drops (curves, valves etc.).

the Manufacturer.

Continuous Regulation of the EC brushless fans

EC brushless fans are mounted as standard and allow the unit to work at an ambient temperature down to -10 °C.

6 - Control (continued)

6.6 HPF version configuration

Units equipped with High pressure fan (HPF) can be set-up on the field to give the unit a specific static pressure.

By entering parameter in service level - Max Speed (Vdc) - it is possible to modify high static pressure. The table below shows the correspondance between chiller model, fan RPM, high static pressure (approximate values).

Model Fan Static Pressure (Pa) Fan RPM

0 900 6,9

30 950 7,3

380-1260

70 1.000 7,9 100 1.050 8,3 120 1.100 10,0

Parameter in Service Level:

Max Speed (Vdc)

7 - Product Description

7.1 Introduction

The units are air cooled water chillers provided with screw compressors with two refrigeration circuits.

These units are fit for cooling intermediate fluids (glycoled water), for air-conditioning applications in industrial processes.

VERSION (1) DESCRIPTION

Standard version

Super Low Noise version (S)

High pressure fan (HPF) (1)

High Temperature version (HT) (1)

(1) A high pressure fan (HPF) version and High Temperature (HT) version are equipped with extra powered brushless fans, able to work up to 1100 Rpm.

Brine Version: Unit with dedicated devices on refrigeration system allows the units to operate with brine (ethylenic or propylenic glycol) down to -8 °C.

Available options:

OPTIONS DESCRIPTION

Desuperheater (D) The heat recovery is carried out by a desuperheater mounted on the compressor’s discharge line.

Totaly heat recovery Not available. For information, please contact commercial office.

These units can be installed outdoor on the roof of a building or at ground level.

This series includes the following versions:

Air cooled water chillers, using R134a or R513A refrigerant.

English

7.2 General specifications

The units are supplied complete and provided with all connecting pipes for the refrigerant and internal wiring.

The refrigeration circuit of each unit undergoes a pressure test, is drained, vacuumised, dehydrated and filled with refrigerant, and includes the necessary oil. Once assembled, each unit is subjected to a complete final testing and the correct operation of all refrigeration circuits is checked.

The base and the frame of each unit are made of very thick galvanised sheet, and are secured by screw and stainless bolts. All panels are secured by screw and tropicalised steel bolts, they can be disassembled for easy access to internal components.

All galvanised steel parts are painted with white polyester resin, to ensure the resistance of the unit to corrosion and weather agents over time.

7.3 Compressors

The units are provided with high power, high efficiency and low vibration level semi-hermetic screw compressors. For special application (on request) compressors with liquid injection or external oil cooling with plate-type exchangers can be provided to reduce the discharge temperature.

As standard, the capacity control is of hybrid type: step type for the fixed speed compressor and stepless type for the inverter driven compressor. It is handled by capacity control solenoid valves, handled by the microprocessor of the appliance.

7.4 Refrigeration circuits

The units are provided with two independent circuits with screw compressors for each circuit and shell and tube heat exchanger.

Each refrigerant circuit includes: a service valve for refrigerant filling, shutoff valves for suction lines (on request), as well as for the delivery and liquid lines, an electronic expansion valve, that completely closed (as a solenoid valve) makes it possible to start/ stop the compressor, a dehydrating car tridge filter, a sight glass with humidity indicator.

Furthermore, each circuit is equipped with safety devices in accordance with PED 2014/68/EU: high and low pressure switches, safety valves providing protection in case of fire or malfunction of compressors.

7.5 Water heat exchanger

Evaporator

The units are provided with a direct-expansion refrigerant/water shell and tube heat exchanger with several refrigeration circuits.

The evaporators are insulated with UV ray-proof 19 mm-thick anticondensate closed-cell polyethylene material.

The external surface is provided with wire electric heaters (400-800 W), which prevent frosting at low temperatures (down to -18 °C) when the unit is off.

The motor’s terminals are weatherproof, according to standard IP54.

7 - Product Description (continued)

Desuperheater

All units are available with desuperheaters (DSH). DSH is refrigerant/ water heat exchanger with brazed plates.

DSH is fitted on the compressor discharge pipe and it’s dimensioned to recover about the 10-15% of total rejected heat. Each unit is equipped with 2 exchangers, one for each circuit.

Total heat recovery condenser

Some units are available with total heat recovery condenser (THRC). THRC is refrigerant / water heat exchanger with brazed plates or shell and tube, according to chiller size. THRC is fitted on the compressor discharge pipe in parallel with the standard cooling circuit. The heat recovery function is by means of a four-way valve. Each unit is equipped with 2 exchangers, one for each circuit. Exchangers are insulated with UV ray-proof 19 mm-thick anticondensate closed-cell polyethylene material.

7.6 Air heat exchanger

Coils are microchannel type, made of 100% aluminum (fins, tubes and headers). Tube and fins coils (copper/aluminium) are available as option

7.7 Fans

The condenser’s fans are of large diameter (800 mm) axial type. They are EC brushless type up to around 900Rpm for standard and S versions, up to around 1100 Rpm for HT and HPF versions. They are provided with external diffusers (nozzles), that reduce the aeraulic motor to a large extent. Each fan is provided with galvanised steel accident-prevention guard, painted after assembly.

Finally, the fans’ motors are completely closed, protection class IP55, protection thermostat immersed in windings.

7.8 Electric power supply and control system

All units are provided with a microprocessor and a “Chiller Control” system.

The electrical connection of the controls and the startup units for the motor are carried out and tested in the factory. The power supply and control components are separate and accessible from different doors.

A door stop disconnecting switch is always available, and is mounted on the door of the appliance, supply side. The cabinet includes also another door, that can be opened from the top, waterproofed according to IP54 standard.

The power supply compartment includes:

Master switch

Network isolator, contactors, compressor fuses

Control panel includes:

A transformer for auxiliaries, fuses, relay and electronic card, a

thermostat for the compressor’s delivery temperature

The keyboard and the display of the “Chiller-Control”

microcomputer, mounted on the door of the control section.

7.9 Accessories

List of available accessories, provided separately, to be mounted on site by the installer:

Water flow switch

Prevents the operation of the unit when the chilled fluid is insufficient. It is advisablem to install a flow switch, to ensure the correct operation of the unit.

Water filter

Filter to be mounted on the suction side of the water heat exchanger. It is mandatory to install a water filter to remove impurities from the water suplly.

Antivibrating supports (AVM)

Isolating spring supports, equipped with bolts for fastening to the base. They are supplied separated from the unit and must be mounted on site by the customer, at his own expense.

Remote wall terminal

Makes it possible to check the unit through a remote terminal, up to a maximum distance of 400 meters.

RS485 serial card (for MODBUS or BACNET)

A communication interface makes it possible to control and manage the unit from a local station, with RS485 connection, up to a distance of 1000 m.

It is possible to obtain the remote control and the management, by inserting the control into the management plant of the building.

Internal hydro kits

Consist of pump(s) and relevant accessories (tank is not available inside the unit).

Hydraulic module

"Consist of one or two centrifugal pumps standardized to EN 733, ISO 5199 and directive 2009/125/EC. Three-phase electrical motor, protected to IP55, insulation class F. In the case of two pumps (One Operational and one standby), the standby pump starts once the

operational pump breaks down. "

Variable flow hydraulic module

"Consist of one or two centrifugal pumps standardized to EN 733, ISO 5199 and directive 2009/125/EC. Three-phase electrical motor, protected to IP55, insulation class F, coupled with an inverter (protected to IP55), which modulates the current’s frequency between 25 and 50 Hz. The two pumps are managed to balance their running time. The inverter is used to manage the pumps is placed in a dedicated panel and is driven directly by the unit’s controller. "

External hydro kits

Consist of buffer tank, pump(s), relevant accessories and with or without tank antifreeze heater.

7 - Product Description (continued)

Refrigerant flow diagram - Unit 380-510 CO

EEV CONTROL

UNIT CONTROL

CIRCUIT 2 INVERTER

English

CIRCUIT 1

STEP

UNIT CONTROL

EEV CONTROL

COMPONENTS 1A Compressor (Screw Step type) 1B Compressor (Screw Inverter type)

2 Air cooled condenser

3 Filter drier

4 Electronic expansion valve

5 Globe valve

6 Heat exchanger (Shell & Tube Type)

7 Desuperheater (Optional)

8 Muffler (Optional)

9 Anti-vibration pipe (Optional) 10 Suction compressor valve (Optional) 11 Suction accumulator (only BC version)

SAFETY / CONTROL DEVICES

A High pressure switch

AT High pressure transducer

B Low pressure switch

BT Low pressure transducer

S 5/16” Shrader connection D Air temperature sensor E Outlet water temperature sensor F Inlet water temperature sensor G PED pressure relief valve HP side H PED pressure relief valve LP side

M Discharge temperature sensor

AF Access fitting SAE FLARE 3/8”

L Oil level switch

Pressure Pipe connection with Shrader valve

7 - Product Description (continued)

Refrigerant flow diagram - Unit 440-590-660-730-810-900-980-1060-1160 CO

EEV CONTROL

UNIT CONTROL

CIRCUIT 2

INVERTER

CIRCUIT 1

STEP+ECO

UNIT CONTROL

EEV CONTROL

COMPONENTS 1A Compressor (Screw Step type) 1B Compressor (Screw Inverter type)

2 Air cooled condenser

3 Filter drier

4 Electronic expansion valve

5 Globe valve

6 Heat exchanger (Shell & Tube Type)

7 Desuperheater (Optional)

8 Muffler (Optional)

9 Anti-vibration pipe (Optional) 10 Solenoid valve (ECO) 11 Thermostatic expansion valve (ECO) 12 Heat exchanger (Phetype) (ECO) 13 Non return valve (ECO) 14 Sight glass (ECO) 15 Suction compressor valve (Optional) 16 Suction accumulator (only BC version)

SAFETY / CONTROL DEVICES

A High pressure switch

AT High pressure transducer

B Low pressure switch

BT Low pressure transducer

S 5/16” Shrader connection D Air temperature sensor E Outlet water temperature sensor F Inlet water temperature sensor G PED pressure relief valve HP side H PED pressure relief valve LP side

M Discharge temperature sensor

AF Access fitting SAE FLARE 3/8”

L Oil level switch

Pressure Pipe connection with Shrader valve

7 - Product Description (continued)

Refrigerant flow diagram - Unit 1260 CO

INVERTER+ECO

EEV CONTROL

CIRCUIT 2

UNIT CONTROL

English

EEV CONTROL

CIRCUIT 1

STEP+ECO

UNIT CONTROL

COMPONENTS 1A Compressor (Screw Step type) 1B Compressor (Screw Inverter type)

2 Air cooled condenser

3 Filter drier

4 Electronic expansion valve

5 Globe valve

6 Heat exchanger (Shell & Tube Type)

7 Desuperheater (Optional)

8 Muffler (Optional)

SAFETY / CONTROL DEVICES

A High pressure switch

AT High pressure transducer

B Low pressure switch

BT Low pressure transducer

S 5/16” Shrader connection D Air temperature sensor E Outlet water temperature sensor F Inlet water temperature sensor G PED pressure relief valve HP side H PED pressure relief valve LP side

M Discharge temperature sensor

AF Access fitting SAE FLARE 3/8”

L Oil level switch

Pressure Pipe connection with Shrader valve

7 - Product Description (continued)

Refrigerant flow diagram - Unit 380-510 TR

UNIT CONTROL

EEV CONTROL

CIRCUIT 2

INVERTER

CIRCUIT 1

STEP

1111

EEV CONTROL

UNIT CONTROL

COMPONENTS 1A Compressor (Screw Step type) 1B Compressor (Screw Inverter type)

2 Air cooled condenser

3 Filter drier

4 Electronic expansion valve

5 Globe valve

6 Heat exchanger (Shell & Tube Type)

7 Heat recover (Shell & Tube Type)

8 Muffler (Optional)

9 Anti-vibration pipe (Optional) 10 Suction compressor valve (Optional) 11 Liquid receiver 12 Check valve 13 4-way valve

SAFETY / CONTROL DEVICES

A High pressure switch

AT High pressure transducer

B Low pressure switch

BT Low pressure transducer

S 5/16” Shrader connection D Air temperature sensor E Outlet water temperature sensor F Inlet water temperature sensor G PED pressure relief valve HP side H PED pressure relief valve LP side

M Discharge temperature sensor

AF Access fitting SAE FLARE 3/8”

L Oil level switch

Pressure Pipe connection with Shrader valve

7 - Product Description (continued)

Refrigerant flow diagram - Unit 440-590-660 TR

UNIT CONTROL

CIRCUIT 2

INVERTER

EEV CONTROL

11 11

CIRCUIT 1

STEP+ECO

EEV CONTROL

UNIT CONTROL

English

COMPONENTS 1A Compressor (Screw Step type) 1B Compressor (Screw Inverter type)

2 Air cooled condenser

3 Filter drier

4 Electronic expansion valve

5 Globe valve

6 Heat exchanger (Shell & Tube Type)

7 Heat recover (Shell & Tube Type)

8 Muffler (Optional)

9 Anti-vibration pipe (Optional) 10 Suction compressor valve (Optional) 11 Liquid receiver 12 Check valve 13 4-way valve 20 Solenoid valve (ECO) 21 Thermostatic expansion valve (ECO) 22 Heat exchanger (Phetype) (ECO) 23 Non return valve (ECO) 24 Sight glass (ECO)

SAFETY / CONTROL DEVICES

A High pressure switch

AT High pressure transducer

B Low pressure switch

BT Low pressure transducer

S 5/16” Shrader connection D Air temperature sensor E Outlet water temperature sensor F Inlet water temperature sensor G PED pressure relief valve HP side H PED pressure relief valve LP side

M Discharge temperature sensor

AF Access fitting SAE FLARE 3/8”

L Oil level switch

Pressure Pipe connection with Shrader valve

8.1 Pressure drops

Evaporator Pressure drop

8 - Technical Data

Model

380 366 63010 105016 39381 4,314E-09 17,1 47,6 6,7 450 444 76366 127277 47729 4,129E-09 24,1 66,9 9,4 500 501 86180 143633 53862 2,486E-09 18,5 51,3 7,2 590 567 97512 162519 60945 2,486E-09 23,6 65,7 9,2 660 645 110953 184922 69346 2,485E-09 30,6 85,0 11,9 730 706 121426 202376 75891 1,999E-09 29,5 81,9 11,5 810 780 134199 223666 83875 1,999E-09 36,0 100,0 14,1 900 898 154539 257565 96587 8,812E-10 21,0 58,5 8,2

980 985 169490 282483 105931 8,297E-10 23,8 66,2 9,3 1060 1050 180531 300885 112832 8,459E-10 27,6 76,6 10,8 1160 1157 198964 331607 124353 8,459E-10 33,5 93,0 13,1 1260 1243 213864 356440 133665 7,106E-10 32,5 90,3 12,7

Nom. Capacity Qnom. Qmax. Qmin. K Dp nom DP max DP min

kW l/h l/h l/h kPa/(l/h)^2 kPa kPa kPa

Desuperheater pressure drop

Model

380 28 4752 7919 2970 1,1838E-07 2,7 7,4 1,0

450 33 5680 9467 3550 7,8281E-08 2,5 7,0 1,0

500 38 6474 10791 4046 5,0243E-08 2,1 5,9 0,8

590 42 7252 12087 4532 5,0243E-08 2,6 7,3 1,0

660 48 8245 13742 5153 4,0625E-08 2,8 7,7 1,1

730 53 9072 15120 5670 4,0625E-08 3,3 9,3 1,3

810 58 10023 16706 6265 2,7081E-08 2,7 7,6 1,1

900 67 11543 19238 7214 2,7081E-08 3,6 10,0 1,4

980 74 12693 21156 7933 2,0919E-08 3,4 9,4 1,3 1060 78 13396 22327 8373 2,0919E-08 3,8 10,4 1,5 1160 86 14808 24681 9255 2,0004E-08 4,4 12,2 1,7 1260 93 16044 26740 10028 2,0004E-08 5,1 14,3 2,0

Nom. Capacity Qnom. Qmax. Qmin. K Dp nom DP max DP min

kW (*) l/h l/h l/h kPa/(l/h)^2 kPa kPa kPa

(*) Capacity referred to only one circuit. Data referred to standard unit and refrigerant R513A. Minor differences with configurations S/HT and refrigerant R134a (< 5%)

8 - Technical Data (continued)

8.2 Technical data

SYSCREW AIR EVO HSE STD / HT / HPF 380 440 510 590 660 730

Power supply* V/Ph/Hz 400 (± 10%) / 3 / 50

Number of refrigerant circuits 2

Start-up Type PW+FI PW+FI PW+FI PW+FI SD+FI SD+FI

Min÷Max capacity steps % 22% ÷ 100% 18% ÷ 100% 16% ÷ 100% 14% ÷ 100% 13% ÷ 100% 15% ÷ 100%

COMPRESSOR

Number 2

Type 1 STEP SCREW + 1 INVERTER SCREW

INTERNAL HEAT EXCHANGER (EVAPORATOR)

Number 1

Type Shell & tube

Water connections inch 6 6 8 8 8 8

EXTERNAL HEAT EXCHANGER (COILS)

Number 8 10 10 10 12 12

Type MCHX - Al/Alloy

FAN

Number 8 10 10 12 14 14

Air flow m³/h 183.960 230.040 230.040 276.120 321.840 321.840

Total input power kW 12,0 15,0 15,0 18,0 21,0 21,0

Total input power ** kW 20,5 25,6 25,6 30,7 35,8 35,8

Total input power *** kW 24,0 30,0 30,0 36,0 42,0 42,0

REFRIGERANT

Type / GWP R134a / 1430

Charge 1 / 2 (1)

Type / GWP R513A / 631

Charge 1 / 2 (1)

DESUPERHEATER

Number 2

Type PHE

WEIGHT

Shipping kg 3747 4117 4651 4995 5392 5931

Operating kg 3896 4259 4897 5241 5620 6207

DIMENSIONS

Length mm 4660 5712 5712 6764 7816 7816

Width mm 2192 2192 2192 2192 2192 2192

Height mm 2510 2510 2510 2510 2510 2510

tCO2eq

33 / 33 41 / 41 46 / 46 51 / 51 65 / 65 68 / 68

47,2 / 47,2 58,6 / 58,6 65,8 / 65,8 72,9 / 72,9 93,0 / 93,0 97,2 / 97,2

33 / 33 41 / 41 46 / 46 51 / 51 65 / 65 68 / 68

20,8 / 20,8 25,9 / 25,9 29,0 / 29,0 32,2 / 32,2 41,0 / 41,0 42,9 / 42,9

English

(1) The refrigerant value are indicative values for standard units. The actual data are indicated on the unit label. * Voltage supply tolerances: +/- 10% of the nominal Voltage (400V) for short term application; +/-5% of the nominal Voltage (400V) for continuous application ** High Temperature Units (HT), data with fans at max speed (1100 Rpm) *** HPF Units, data with fans at max speed (1100 Rpm)

8 - Technical Data (continued)

SYSCREW AIR EVO HSE STD / HT / HPF 810 900 980 1060 1160 1260

Power supply* V/Ph/Hz 400 (± 10%) / 3 / 50

Number of refrigerant circuits 2

Start-up Type SD+FI SD+FI SD+FI SD+FI SD+FI SD+FI

Min÷Max capacity steps % 13% ÷ 100% 14% ÷ 100% 13% ÷ 100% 17% ÷ 100% 15% ÷ 100% 14% ÷ 100%

COMPRESSOR

Number 2

Type 1 STEP SCREW + 1 INVERTER SCREW

INTERNAL HEAT EXCHANGER (EVAPORATOR)

Number 1

Type Shell & tube

Water connections inch 8 8 10 10 10 10

EXTERNAL HEAT EXCHANGER (COILS)

Number 14 14 16 18 20 22

Type MCHX - Al/Alloy

FAN

Number 16 18 20 22 24 24

Air flow m³/h 367.920 414.000 460.080 506.160 552.240 552.240

Total input power kW 24,0 27,0 30,0 33,0 36,0 36,0

Total input power ** kW 41,0 46,1 51,2 56,3 61,4 61,4

Total input power *** kW 48,0 54,0 60,0 66,0 72,0 72,0

REFRIGERANT

Type / GWP R134a / 1430

Charge 1 / 2 (1)

Type / GWP R513A / 631

Charge 1 / 2 (1)

DESUPERHEATER

Number 2

Type PHE

WEIGHT

Shipping kg 6255 6947 7397 8124 8508 8643

Operating kg 6531 7326 7764 8491 8875 9074

DIMENSIONS

Length mm 8868 9920 10972 12024 13076 13076

Width mm 2192 2192 2192 2192 2192 2192

Height mm 2510 2510 2510 2510 2510 2510

tCO2eq

76 / 76 88 / 88 93 / 93 102 / 102 114 / 114 114 / 114

108,7 / 108,7 125,8 / 125,8 133,0 / 133,0 145,9 / 145,9 163,0 / 163,0 163,0 / 163,0

76 / 76 88 / 88 93 / 93 102 / 102 114 / 114 114 / 114

48,0 / 48,0 55,5 / 55,5 58,7 / 58,7 64,4 / 64,4 71,9 / 71,9 71,9 / 71,9

8 - Technical Data (continued)

SYSCREW AIR EVO HSE S 380 440 510 590 660 730

Power supply* V/Ph/Hz 400 (± 10%) / 3 / 50

Number of refrigerant circuits 2

Start-up Type PW+FI PW+FI PW+FI PW+FI SD+FI SD+FI

Min÷Max capacity steps % 22% ÷ 100% 18% ÷ 100% 16% ÷ 100% 14% ÷ 100% 13% ÷ 100% 15% ÷ 100%

COMPRESSOR

Number 2

Type 1 STEP SCREW + 1 INVERTER SCREW

INTERNAL HEAT EXCHANGER (EVAPORATOR)

Number 1

Type Shell & tube (Pure counterflow)

Water connections inch 6 6 8 8 8 8

EXTERNAL HEAT EXCHANGER (COILS)

Number 8 10 10 10 12 12

Type MCHX - Al/Alloy

FAN

Number 8 10 10 10 12 12

Air flow m³/h 152.640 191.160 191.160 191.160 229.320 229.320

Total input power kW 9.2 11.5 11.5 11.5 13.8 13.8

REFRIGERANT

Type / GWP R134a / 1430

Charge 1 / 2 (1)

Type / GWP R513A / 631

Charge 1 / 2 (1)

DESUPERHEATER

Number 2

Type PHE

WEIGHT

Shipping kg 3832 4210 4744 5077 5474 6017

Operating kg 3981 4352 4990 5323 5702 6293

DIMENSIONS

Length mm 4660 5712 5712 6764 7816 7816

Width mm 2192 2192 2192 2192 2192 2192

Height mm 2590 2590 2590 2590 2590 2590

tCO2eq

33 / 33 41 / 41 46 / 46 51 / 51 65 / 65 68 / 68

47,2 / 47,2 58,6 / 58,6 65,8 / 65,8 72,9 / 72,9 93,0 / 93,0 97,2 / 97,2

33 / 33 41 / 41 46 / 46 51 / 51 65 / 65 68 / 68

20,8 / 20,8 25,9 / 25,9 29,0 / 29,0 32,2 / 32,2 41,0 / 41,0 42,9 / 42,9

English

8 - Technical Data (continued)

SYSCREW AIR EVO HSE S 810 900 980 1060 1160 1260

Power supply* V/Ph/Hz 400 (± 10%) / 3 / 50

Number of refrigerant circuits 2

Start-up Type SD+FI SD+FI SD+FI SD+FI SD+FI SD+FI

Min÷Max capacity steps % 13% ÷ 100% 14% ÷ 100% 13% ÷ 100% 17% ÷ 100% 15% ÷ 100% 14% ÷ 100%

COMPRESSOR

Number 2

Type 1 STEP SCREW + 1 INVERTER SCREW

INTERNAL HEAT EXCHANGER (EVAPORATOR)

Number 1

Type Shell & tube (Pure counterflow)

Water connections inch 8 8 10 10 10 10

EXTERNAL HEAT EXCHANGER (COILS)

Number 14 14 16 18 20 22

Type MCHX - Al/Alloy

FAN

Number 14 14 16 18 20 22

Air flow m³/h 267.480 267.480 305.640 343.800 381.960 420.120

Total input power kW 16.1 16.1 18.4 20.7 23.0 25.3

REFRIGERANT

Type / GWP R134a / 1430

Charge 1 / 2 (1)

Type / GWP R513A / 631

Charge 1 / 2 (1)

DESUPERHEATER

Number 2

Type PHE

WEIGHT

ShippinG kg 6341 7033 7485 8212 8596 8731

Operating kg 6617 7412 7852 8579 8963 9162

DIMENSIONS

Length mm 8868 9920 10972 12024 13076 13076

Width mm 2192 2192 2192 2192 2192 2192

Height mm 2590 2590 2590 2590 2590 2590

tCO2eq

76 / 76 88 / 88 93 / 93 102 / 102 114 / 114 114 / 114

108,7 / 108,7 125,8 / 125,8 133,0 / 133,0 145,9 / 145,9 163,0 / 163,0 163,0 / 163,0

76 / 76 88 / 88 93 / 93 102 / 102 114 / 114 114 / 114

48,0 / 48,0 55,5 / 55,5 58,7 / 58,7 64,4 / 64,4 71,9 / 71,9 71,9 / 71,9

8 - Technical Data (continued)

8.3 Unit electrical data

Standard Version 380 440 510 590 660 730 810 900 980 1060 1160 1260

R134a A

Current input

Power input

Max Start-up current A UNIT (aM) FUSES A Phase WIRE SECTION* mm22x185 2x185 2x185 2x185 2x185 2x185 2x240 2x240 2x240 2x300 2x300 2x300

S Version 380 440 510 590 660 730 810 900 980 1060 1160 1260

Current input

Power input

Max Start-up current A UNIT (aM) FUSES A Phase WIRE SECTION* mm22x185 2x185 2x185 2x185 2x185 2x185 2x240 2x240 2x240 2x300 2x300 2x300

HT Version 380 440 510 590 660 730 810 900 980 1060 1160 1260

Current input

Power input

Max Start-up current A 606 688 785 794 624 664 768 886 1016 1105 1178 1178 UNIT (aM) FUSES A 500 500 500 500 630 630 800 800 800 1000 1000 1000 Phase WIRE SECTION* mm22x185 2x185 2x185 2x185 2x185 2x185 2x240 2x240 2x240 2x300 2x300 2x300

Nom

R513A A

Max A

R134a kW

Nom

R513A kW

Max kW

R134a A

Nom

R513A A

Max A

R134a kW

Nom

R513A kW

Max kW

R134a A

Nom

R513A A

Max A 400 427 447 456 497 537 612 731 750 839 888 888

R134a kW 130 156 173 194 221 238 266 302 335 357 397 419

Nom

R513A kW 126 150 167 187 212 230

Max kW 242 253 270 276 303 340 370 427 462 520 544 544

206 241 272 301 342 369 406 456 512 547 606 627 200 233 263 290 330 356 392 443 497 525 581 615 395 421 441 449 489 529 602 720 738 826 874 874 121 145 162 181 206 224 249 283 314 334 372 394 117 140 156 174 198 215 240 275 305 319 355 377 238 249 266 271 297 334 363 419 453 510 533 533 601 682 779 787 616 656 758 875 1004 1092 1164 1164 500 500 500 500 630 630 800 800 800 1000 1000 1000

200 233 265 292 331 359 394 442 497 531 589 610 194 225 256 281 319 346 380 429 482 509 564 598 395 421 441 449 489 529 602 720 738 826 874 874 117 140 157 175 199 217 241 274 304 323 359 382 113 135 151 168 191 208 232 266 295 308 343 365 238 249 266 271 297 334 363 419 453 510 533 533 601 682 779 787 616 656 758 875 1004 1092 1164 1164 500 500 500 500 630 630 800 800 800 1000 1000 1000

218

256 287 319 363 390 430 483 542 581 643 664

212 248 278 308 351 377 416 470 527 559 618 652

257 294 326 343 381 403

English

HPF Version 380 440 510 590 660 730 810 900 980 1060 1160 1260

R134a A

Current input

Power input

Nom

R513A A

Max A 400 427 447 456 497 537 612 731 750 839 888 888

R134a kW 133 160 177 199 226 244 272 309 343 366 407 429

Nom

R513A kW 129 155 171 192 218 236

Max kW 242 253 270 276 303 340 370 427 462 520 544 544

223

261 293 326 371 398 439 493 553 593 656 677

217 254 284 315 359 385 425 480 538 571 631 665

263 302 334 352 391 413

8 - Technical Data (continued)

Compressors 400 V / 3 Ph / 50 Hz

Model System Frame

380

440

510

590

660

730

810

900

980

1060

1160

1260

1 2 FI 56 58 97 100 130 220 20 200 1 2 FI 64 66 109 112 130 220 20 200 1 2 FI 73 76 123 128 130 220 20 200 1 2 FI 81 84 135 140 130 220 20 200 1 2 FI 81 84 135 140 130 220 20 200 1 2 FI 98 102 161 167 167 260 20 200 1 2 FI 103 107 168 174 167 260 20 200 1 2 FI 124 127 199 204 198 340 20 200 1 2 FI 130 133 209 214 198 340 20 200 1 2 FI 142 150 233 245 250 420 20 200 1 2 FI 158 167 258 272 250 420 20 200 1 2 FI 180 190 292 293 250 420 20 200

10V

11V

12V

Power input

Compressor

start

mode

PW 49 51 83 87 88 144 350 200 0,85

PW 61 64 100 105 93 162 423 200 0,89

PW 68 71 116 120 110 182 520 300 0,85

PW 75 79 126 132 110 182 520 300 0,86

SD 96 101 161 168 131 214 341 300 0,86

SD 113 118 185 193 155 280 436 300 0,88

SD 124 129 200 208 175 310 465 300 0,90

SD 145 151 239 249 204 320 586 300 0,87

SD 161 168 265 276 222 360 650 300 0,88

nominal Cond.

compressor

(kW)

R134a R513A R134a R513A

Nom. Cond.

current

compressor

(A)

Power input

max. Cond.

compressor

(kW)

Max. running

current

compressor

FLA

(A)

Starting

current

compressor

LRA

(A)

Carter

oil

230Vac

(W)

"Nominal

power

factor"

8 - Technical Data (continued)

Fans - 400 V / 3 Ph / 50 Hz

Model

Standard Version

380 8 1,5 2,4 2,6 3,9 440 10 1,5 2,4 2,6 3,9 510 10 1,5 2,4 2,6 3,9 590 12 1,5 2,4 2,6 3,9 660 14 1,5 2,4 2,6 3,9 730 14 1,5 2,4 2,6 3,9 810 16 1,5 2,4 2,6 3,9 900 18 1,5 2,4 2,6 3,9

980 20 1,5 2,4 2,6 3,9 1060 22 1,5 2,4 2,6 3,9 1160 24 1,5 2,4 2,6 3,9 1260 24 1,5 2,4 2,6 3,9

S Version

380 8 1,0 1,7 2,6 3,9

440 10 1,0 1,7 2,6 3,9

510 10 1,0 1,7 2,6 3,9

590 12 1,0 1,7 2,6 3,9

660 14 1,0 1,7 2,6 3,9

730 14 1,0 1,7 2,6 3,9

810 16 1,0 1,7 2,6 3,9

900 18 1,0 1,7 2,6 3,9

980 20 1,0 1,7 2,6 3,9 1060 22 1,0 1,7 2,6 3,9 1160 24 1,0 1,7 2,6 3,9 1260 24 1,0 1,7 2,6 3,9

HPF Version

380 8 3,0 4,5 3,0 4,5

440 10 3,0 4,5 3,0 4,5

510 10 3,0 4,5 3,0 4,5

590 12 3,0 4,5 3,0 4,5

660 14 3,0 4,5 3,0 4,5

730 14 3,0 4,5 3,0 4,5

810 16 3,0 4,5 3,0 4,5

900 18 3,0 4,5 3,0 4,5

980 20 3,0 4,5 3,0 4,5 1060 22 3,0 4,5 3,0 4,5 1160 24 3,0 4,5 3,0 4,5 1260 24 3,0 4,5 3,0 4,5

HT Version

380 8 2,6 3,9 3,0 4,5

440 10 2,6 3,9 3,0 4,5

510 10 2,6 3,9 3,0 4,5

590 12 2,6 3,9 3,0 4,5

660 14 2,6 3,9 3,0 4,5

730 14 2,6 3,9 3,0 4,5

810 16 2,6 3,9 3,0 4,5

900 18 2,6 3,9 3,0 4,5

980 20 2,6 3,9 3,0 4,5 1060 22 2,6 3,9 3,0 4,5 1160 24 2,6 3,9 3,0 4,5 1260 24 2,6 3,9 3,0 4,5

Number Nominal Power (kW) Nominal Current(A) Max. Running Power (kW) Max. Running Current (A)

EC fans

English

8 - Technical Data (continued)

8.4 Hydraulic features

Available pressure head - SYSCREW AIR EVO HSE Standard pressure pump (1/2PSP)

SYSCREW 380 AIR EVO HSE

Avaliable Pressure head [kPa]

SYSCREW 440 AIR EVO HSE

Water Flow rate [l/s]

Avaliable Pressure head [kPa]

SYSCREW 510 AIR EVO HSE

Avaliable Pressure head [kPa]

Water Flow rate [l/s]

8 - Technical Data (continued)

Available pressure head - SYSCREW AIR EVO HSE Standard pressure pump (1/2PSP) (continued)

SYSCREW 590 AIR EVO HSE

Avaliable Pressure head [kPa]

SYSCREW 660 AIR EVO HSE

English

Water Flow rate [l/s]

Avaliable Pressure head [kPa]

SYSCREW 730 AIR EVO HSE

Avaliable Pressure head [kPa]

Water Flow rate [l/s]

8 - Technical Data (continued)

Available pressure head - SYSCREW AIR EVO HSE Standard pressure pump (1/2PSP) (continued)

SYSCREW 810 AIR EVO HSE

Avaliable Pressure head [kPa]

SYSCREW 900 AIR EVO HSE

Water Flow rate [l/s]

Avaliable Pressure head [kPa]

SYSCREW 980 AIR EVO HSE

Avaliable Pressure head [kPa]

Water Flow rate [l/s]

8 - Technical Data (continued)

Available pressure head - SYSCREW AIR EVO HSE Standard pressure pump (1/2PSP) (continued)

SYSCREW 1060 AIR EVO HSE

Avaliable Pressure head [kPa]

SYSCREW 1160 AIR EVO HSE

English

Water Flow rate [l/s]

Avaliable Pressure head [kPa]

SYSCREW 1260 AIR EVO HSE

Avaliable Pressure head [kPa]

Water Flow rate [l/s]

8 - Technical Data (continued)

Available pressure head - SYSCREW AIR EVO HSE High pressure pump (1/2PHP)

SYSCREW 380 AIR EVO HSE

Avaliable Pressure head [kPa]

SYSCREW 440 AIR EVO HSE

Water Flow rate [l/s]

Avaliable Pressure head [kPa]

SYSCREW 510 AIR EVO HSE

Avaliable Pressure head [kPa]

Water Flow rate [l/s]

8 - Technical Data (continued)

Available pressure head - SYSCREW AIR EVO HSE High pressure pump (1/2PHP) (continued)

SYSCREW 590 AIR EVO HSE

Avaliable Pressure head [kPa]

SYSCREW 660 AIR EVO HSE

English

Water Flow rate [l/s]

Avaliable Pressure head [kPa]

SYSCREW 730 AIR EVO HSE

Avaliable Pressure head [kPa]

Water Flow rate [l/s]

8 - Technical Data (continued)

Available pressure head - SYSCREW AIR EVO HSE High pressure pump (1/2PHP) (continued)

SYSCREW 810 AIR EVO HSE

Avaliable Pressure head [kPa]

SYSCREW 900 AIR EVO HSE

Water Flow rate [l/s]

Avaliable Pressure head [kPa]

SYSCREW 980 AIR EVO HSE

Avaliable Pressure head [kPa]

Water Flow rate [l/s]

8 - Technical Data (continued)

Available pressure head - SYSCREW AIR EVO HSE High pressure pump (1/2PHP) (continued)

SYSCREW 1060 AIR EVO HSE

Avaliable Pressure head [kPa]

SYSCREW 1160 AIR EVO HSE

English

Water Flow rate [l/s]

Avaliable Pressure head [kPa]

SYSCREW 1260 AIR EVO HSE

Avaliable Pressure head [kPa]

Water Flow rate [l/s]

Hydro option

Low head pump [Weights]

8 - Technical Data (continued)

Size

380 183 216 361 402 24

440 183 216 361 402 24

510 201 234 396 437 38

590 240 285 445 494 38

660 247 292 458 507 38

730 251 296 466 515 38

810 414 597 665 855 38

900 521 705 879 1069 38

980 521 705 879 1069 38 1060 615 839 1011 1234 48 1160 615 839 1011 1234 48 1260 690 914 1150 1374 48

* Only in case of Variable flow hydraulic module

Shipping Weight [1P] Gross Weight [1P] Shipping Weight [2P] Gross Weight [2P] Inverter Extra weight *

kg kg kg kg kg

High head pump [Weights]

Size

380 185 218 365 406 24

440 204 237 403 444 38

510 204 237 403 444 38

590 255 300 474 523 38

660 322 367 607 656 38

730 332 377 628 677 48

810 495 679 827 1017 48

900 584 768 1006 1196 48

980 584 768 1006 1196 48 1060 675 898 1129 1353 48 1160 750 974 1281 1505 71 1260 766 989 1302 1525 71

Shipping Weight [1P] Gross Weight [1P] Shipping Weight [2P] Gross Weight [2P] Inverter Extra weight *

kg kg kg kg kg

* Only in case of Variable flow hydraulic module

8 - Technical Data (continued)

8.5 Position of shock adsorbers and weight distribution on supports

Weight distribution

MODEL MODULES

380 STD / HT MCHX 4 426 693 527 794 594 861 0 0 3896 3747 2082 2104 1392 - 2020 1255 440 STD / HT MCHX 5 529 789 585 845 626 886 0 0 4259 4117 2082 2630 1918 - 2497 1232 510 STD / HT MCHX 5 687 1016 648 977 620 949 0 0 4897 4651 2082 2630 1918 - 2330 1251 590 STD / HT MCHX 6 479 506 630 657 672 699 786 813 5241 4995 2082 2537 712 1918 3049 1063 660 STD / HT MCHX 7 320 337 616 633 772 789 1068 1085 5620 5392 2082 2630 1392 2630 4251 1054 730 STD / HT MCHX 7 371 337 705 670 881 847 1215 1180 6207 5931 2082 2630 1392 2630 4269 1018 810 STD / HT MCHX 8 420 382 712 674 954 916 1256 1218 6531 6255 2082 2537 2104 2630 4621 1017 900 STD / HT MCHX 9 467 429 748 710 1121 1083 1402 1364 7326 6947 2082 2630 3496 2630 5673 1019 980 STD / HT MCHX 10 529 482 841 794 1176 1130 1429 1382 7764 7397 2082 3249 3496 2630 6083 1016 1060 STD / HT MCHX 11 362 380 873 892 1231 1250 1743 1761 8491 8124 2082 4022 2816 4022 7315 1050 1160 STD / HT MCHX 12 442 457 962 977 1277 1292 1727 1742 8875 8508 2082 4641 2816 4022 7659 1048 1260 STD / HT MCHX 12 455 475 982 1002 1302 1322 1758 1778 9074 8643 2082 4641 2816 4022 7644 1050 380 S MCHX 4 423 727 522 827 588 893 0 0 3981 3832 2082 2104 1392 - 2014 1280 440 S MCHX 5 547 807 600 860 639 899 0 0 4352 4210 2082 2630 1918 - 2489 1228 510 S MCHX 5 705 1034 664 992 633 962 0 0 4990 4744 2082 2630 1918 - 2326 1247 590 S MCHX 6 478 505 639 666 684 711 806 833 5323 5077 2082 2537 712 1918 3064 1062 660 S MCHX 7 318 335 623 640 785 802 1090 1107 5702 5474 2082 2630 1392 2630 4266 1053 730 S MCHX 7 370 336 713 679 895 860 1237 1203 6293 6017 2082 2630 1392 2630 4283 1018 810 S MCHX 8 419 381 719 681 968 930 1279 1241 6617 6341 2082 2537 2104 2630 4637 1017 900 S MCHX 9 467 429 754 716 1137 1099 1424 1386 7412 7033 2082 2630 3496 2630 5690 1020 980 S MCHX 10 528 482 848 801 1192 1145 1451 1404 7852 7485 2082 3249 3496 2630 6099 1016 1060 S MCHX 11 360 378 881 899 1245 1264 1767 1785 8579 8212 2082 4022 2816 4022 7331 1050 1160 S MCHX 12 440 455 970 985 1291 1306 1750 1765 8963 8596 2082 4641 2816 4022 7675 1048 1260 S MCHX 12 453 473 990 1010 1316 1336 1782 1801 9162 8731 2082 4641 2816 4022 7661 1050

(*) Weights are referred to STD units (with MCHX coils and without hydrokit or desuperheater).

F1 F2 F3 F4 F5 F6 F7 F8 a b c d x y kg kg kg kg kg kg kg kg kg kg mm mm mm mm mm mm

Operating

weight

Shipping

weight

P coordinates CG

English

8 - Technical Data (continued)

4228

366 3663496

LIFT

440

4660

2410 728

233 only for container shipment

WATER IN-OUT STD "B" "E" 299

4228

366 3663496

LIFT

440

4660

2410 728

233 only for container shipment

WATER IN-OUT STD "B" "E" 299

NOTES:

B - WATER INLET 6" VICTAULIC E - WATER OUTLET 6" VICTAULIC F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 380 INVERTER

8.6 Dimensional drawings -

Front view

2515

2680 SLN

2192

Back view

SYSCREW 380 AIR EVO HSE

440

366 3663496

Side view

2410 728

LIFT

4228

4660

Top view

233

only for container shipment

WATER IN-OUT STD "B" "E" 299

B Water inlet 6” Victaulic E Water outlet 6” Victaulic F Electrical power supply L Main switch

M Control keypad / Display

AVM

2082

2104 1392

Hydraulic option Water in Water out

STD B E

8 - Technical Data (continued)

5280

366

440

5712

366

4548 LIFT

2410 1455

233 only for container shipment

WATER IN-OUT STD "B" "E" 299

5280

366

440

5712

366

4548 LIFT

2410 1455

233 only for container shipment

WATER IN-OUT STD "B" "E" 299

NOTES:

B - WATER INLET 6" VICTAULIC E - WATER OUTLET 6" VICTAULIC F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 440 INVERTER

Dimensional drawings -

Front view

2515

2680 SLN

2192

Back view

SYSCREW 440 AIR EVO HSE

366

English

Side view

2410 1455

440

4548 LIFT

5280

5712

Top view

366

233

only for container shipment

AVM

2082

2630 1918

WATER IN-OUT STD "B" "E" 299

B Water inlet 6” Victaulic E Water outlet 6” Victaulic

Hydraulic option Water in Water out

STD B E F Electrical power supply L Main switch

M Control keypad / Display

8 - Technical Data (continued)

5280

366

481

366

4548 LIFT

2360 1637

WATER IN-OUT STD "B" "E" 588

5280

366

481

5712

366

4548 LIFT

2360 1637

233 only for container shipment

WATER IN-OUT STD "B" "E" 588

NOTES:

B - WATER INLET 8" VICTAULIC E - WATER OUTLET 8" VICTAULIC F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 510 INVERTER

Dimensional drawings -

Front view

2515

2680 SLN

2192

Back view

SYSCREW 510 AIR EVO HSE

366

Side view

2360 1637

5280

5712

366

233

only for container shipment

481

4548 LIFT

Top view

WATER IN-OUT STD "B" "E" 588

B Water inlet 8” Victaulic E Water outlet 8” Victaulic F Electrical power supply L Main switch

M Control keypad / Display

AVM

2082

Hydraulic option Water in Water out

STD B E

1918 2630

8 - Technical Data (continued)

2680 SLN

481

2360 2987

LIFT / AVM 799

2537 712 1918 366

6332

6764

481

2360 2987

233 only for container shipment

323

2192

2082

AVM

NOTES: B - WATER INLET 8" VICTAULIC E - WATER OUTLET 8" VICTAULIC F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 590 INV

Dimensional drawings -

Front view

2515

Back view

SYSCREW 590 AIR EVO HSE

481

LIFT / AVM 799

Side view

2360 2987

2537 712 1918 366

6332

6764

Top view

233

only for container shipment

English

2192

B Water inlet 8” Victaulic E Water outlet 8” Victaulic F Electrical power supply L Main switch

M Control keypad / Display

323

Hydraulic option Water in Water out

STD B E

8 - Technical Data (continued)

2360 2987

481

LIFT / AVM 366

2630 1392 2630 366

7384 7816

233

only for container shipment

2360 2987

481

LIFT / AVM 366

2630 1392 2630 366

7384 7816

233 only for container shipment

323

2192

NOTES: B - WATER INLET 8" VICTAULIC E - WATER OUTLET 8" VICTAULIC

F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 660 INVERTER

2360 2987

481

LIFT / AVM 366

2630 1392 2630 366

Dimensional drawings -

Front view

2515

2680 SLN

Back view

SYSCREW 660 AIR EVO HSE

Side view

Top view

2082 AVM

323

2192

B Water inlet 8” Victaulic E Water outlet 8” Victaulic F Electrical power supply L Main switch

M Control keypad / Display

Hydraulic option Water in Water out

STD B E

2630 1392 2630

8 - Technical Data (continued)

2515

2680 SLN

2860 3005

481

LIFT / AVM 366

2630 1392 2630 366

7816

233

shipment

2860 3005

481

LIFT / AVM 366

2630 1392 2630 366

7384 7816

233 only for container shipment

323

2192

NOTES: B - WATER INLET 8" VICTAULIC E - WATER OUTLET 8" VICTAULIC

F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 730 INVERTER

Dimensional drawings -

Front view

Back view

SYSCREW 730 AIR EVO HSE

481

LIFT / AVM 366

Side view

2860 3005

2630 1392 2630 366

7384

Top view

English

only for container

B Water inlet 8” Victaulic E Water outlet 8” Victaulic F Electrical power supply L Main switch

M Control keypad / Display

2082 AVM

323

2192

Hydraulic option Water in Water out

STD B E

2630 1392 2630

8 - Technical Data (continued)

481

8436

481

32752860

799 2537 2104 2630 366

8868

233 only for container shipment

323

2192

NOTES: B - WATER INLET 8" VICTAULIC E - WATER OUTLET 8" VICTAULIC

F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 810 INVERTER

Dimensional drawings -

Front view

2515

2680 SLN

Back view

SYSCREW 810 AIR EVO HSE

LIFT / AVM

799 2537 2104 2630 366

481

Side view

Top view

8436

8868

32752860

233

only for container shipment

AVM

2082

323

2192

B Water inlet 8” Victaulic E Water outlet 8” Victaulic

Hydraulic option Water in Water out

STD B E F Electrical power supply L Main switch

M Control keypad / Display

8 - Technical Data (continued)

2680 SLN

530

2310

9488

530

3794

2310

366 2630 3496 2630 366

9920

233 only for container shipment

374

2192

NOTES: B - WATER INLET 8" VICTAULIC E - WATER OUTLET 8" VICTAULIC

F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 900 INVERTER

Dimensional drawings -

Front view

2515

Back view

SYSCREW 900 AIR EVO HSE

LIFT / AVM

366 2630 3496 2630 366

English

Side view

530

Top view

2310

9488

9920

3794

only for container shipment

233

AVM

2082

374

2192

B Water inlet 8” Victaulic E Water outlet 8” Victaulic

Hydraulic option Water in Water out

STD B E F Electrical power supply L Main switch

M Control keypad / Display

8 - Technical Data (continued)

2515

2680 SLN

4641 712 4022

AVM / LIFT

799 366

530

2310

4641 712 4022

AVM / LIFT

799 366

10540

530

3792

2310

10972

233

only for container shipment

2192

374

4641 712 4022

AVM / LIFT

799 366

10540

530

3792

2310

10972

233 only for container shipment

2192

374

NOTES: B - WATER INLET 10" VICTAULIC E - WATER OUTLET 10" VICTAULIC

F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

Dimensional drawings -

Front view

Back view

SYSCREW 980 AIR EVO HSE

Side view

Top view

AVM

2082

B Water inlet 10” Victaulic

Hydraulic option Water in Water out E Water outlet 10” Victaulic F Electrical power supply L Main switch

M Control keypad / Display

STD B E

8 - Technical Data (continued)

530

2310

12024

233

4022 2816 4022

AVM / LIFT

366 366

11592

530

3793

2310

12024

233 only for container shipment

2192

374

NOTES: B - WATER INLET 10" VICTAULIC E - WATER OUTLET 10" VICTAULIC

F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 1060 INVERTER

Dimensional drawings -

Front view

2515

2680 SLN

Back view

SYSCREW 1060 AIR EVO HSE

AVM / LIFT

366 366

4022 2816 4022

Side view

530

Top view

English

11592

2310

3793

only for container shipment

374

2192

B Water inlet 10” Victaulic E Water outlet 10” Victaulic F Electrical power supply L Main switch

M Control keypad / Display

AVM

2082

Hydraulic option Water in Water out

STD B E

8 - Technical Data (continued)

530

2310

4641 2816 4022 366

530

3793

2310

LIFT / AVM 799

12641 13076

233 only for container shipment

2192

374

NOTES: B - WATER INLET 10" VICTAULIC E - WATER OUTLET 10" VICTAULIC

F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 1160 INVERTER

Dimensional drawings -

Front view Side view

2515

2680 SLN

SYSCREW 1160 AIR EVO HSE

LIFT / AVM 799

4641 2816 4022 366

530

2310

12641 13076

3793

only for container shipment

233

Top viewBack view

374

2192

B Water inlet 10” Victaulic E Water outlet 10” Victaulic F Electrical power supply L Main switch

M Control keypad / Display

AVM

2082

Hydraulic option Water in Water out

STD B E

8 - Technical Data (continued)

530

2860 3694

E B

13076

233

4641 2816 4022 366

LIFT / AVM 799

12641 13076

530

2860 3694

233 only for container shipment

E B

2192

371

NOTES: B - WATER INLET 10" VICTAULIC E - WATER OUTLET 10" VICTAULIC

F - ELECTRICAL POWER SUPPLY L - MAIN SWITCH M - CONTROL KEYPAD / DISPLAY

SYSCREW 1260 INVERTER

Dimensional drawings -

Front view Side view

2515

2680 SLN

SYSCREW 1260 AIR EVO HSE

LIFT / AVM 799

4641 2816 4022 366

English

2860 3694

E B

530

12641

Top viewBack view

only for container shipment

371

2192

B Water inlet 10” Victaulic E Water outlet 10” Victaulic F Electrical power supply L Main switch

M Control keypad / Display

AVM

2082

Hydraulic option Water in Water out

STD B E

8.7 Space requirements

3,3 mt

8 - Technical Data (continued)

FREE SPACE

2 mt

The units are air-cooled and are designed for outdoor application. Adequate space around chillers is mandatory, as shown in the pictures below

- to guarantee the proper air flow through the condenser coils, since warm air recirculation and coil starvation may cause the degradation of performances or, in the worst cases, the unit shutdown for high pressure.

- to guarantee access for periodic service and maintenance.

2 mt

These recommendations and are generally enough even in case of extraordinary maintenance, as the replacement of major components of the unit (evaporator, compressors, etc). In any case, to have confirm of the adequate space for this purpose, please contact your nearest Systemair Sales Office.

9 - Maintenance

Carefully read the “Safety” section of this manual before carrying out any maintenance operations.

Do not discharge the refrigerant into the atmosphere while the refrigeration circuits are being drained. Use appropriate recovery equipment.

DANGER

Unless otherwise specified, the operations described below may be carried out only by a trained maintenance operator.

When the recovered refrigerant cannot be reused, return it to the manufacturer.

Do not throw away the waste oil of the compressor, because it contains refrigerant in solution.

The waste oil must be returned to the manufacturer.

9.1 General requirements

Units have been designed for continuous operation, providing that they are subjected to regular maintenance, within the limits specified in this manual. Each unit must be serviced according to the programme by the User/Customer, and must be inspected at regular intervals by the personnel of one authorised Service Centers.

It is the responsibility of the User to meet these maintenance requirements and/or to enter into an agreement with one of authorised Service Centers, so as to properly safeguard the operation of the appliance.

During the warranty period, in case of damage or failures caused by improper maintenance, manufacturer will not refund the costs incurred to repair the appliance in its original state.

The provisions of this section apply only to standard units; according to the order requirements, other documentation may be added, concerning any modifications or supplementary accessories.

9.2 Planned maintenance

Maintenance inspections must be carried out according to the program below, by a qualified person.

As a general rule, units cannot be repaired directly by the user, who shall not try to service or repair any failures or anomalies identified during daily inspections. If you are in doubt, please contact authorised Service Centre.

Operations

Check the temperature of the leaving fluid

Check the pressure drops in the heat exchanger

Check for electric absorption

Check suction pressure and temperature

Check delivery pressure and temperature

Check the oil level in the compressor

Check that there are no gas bubbles in the liquid line

Check that the fins of the external coil are clean (if any)

Check the operation of the oil heaters

Check the remote control switches

Check the operation of the LP pressure switch

Check the operation of the HP pressure switch

Check the insulation of the heat exchanger

Check that terminals are tightened

Check that the terminals’ screws are tightened

Clean the exterior of the unit with water and soap

Check the density of the antifreeze (if any)

Check the operation of the flow switches

Check the operation of the solenoid valve

•

Daily

•

Weekly

•

Monthly

Beginning

•

• •

•

• •

End of

season

of season

English

9 - Maintenance (continued)

9.3 Refrigerant charge

Do not inject refrigerant liquid into the LP side of the circuit. Be very careful, and charge the circuit properly.

If the charge is insufficient, the efficiency of the unit will be lower than expected. In the worst of cases the LP pressure switch may be activated, resulting in the halting of the unit.

WARNING

Fill the refrigeration circuit after it has been drained for maintenance purposes (leaks, replacement of the compressor etc.). The amount of the charge is indicated on the plate affixed to the unit.

Before refilling, it is important to drain and de-hydrate the circuit, thus obtaining a minimum abs. pressure value of 0.06 mbar.

Inject the refrigerant fluid before removing the vacuum, then fill the circuit up to 90% of the total gas requirement (in liquid form). The appliance must be filled through the filling valve on the liquid line, on the outlet side of the condenser.

In the presence of an excess charge, the condensing pressure will rise (in the worst of cases, the HP pressure switch may be activated, resulting in the stop of the equipment), and the consumption will increase as well.

It is strictly forbidden to use the compressor as a vacuum pump to drain the plant.

Compressors use polyester oil. During maintenance operations on the compressor, or if you have to open the refrigerant circuit in any point, remember that this type of oil is highly hygroscopic, and accordingly it is

WARNING

important that it is not left exposed to the weather for prolonged periods, as this would require the replacement of the oil.

Before opening the panel, the unit must stay switched off for at least 5 minutes

WARNING

9.5 Condenser

Condenser coils are of microchannel type made of 100% aluminium (fins and tubes). In the presence of leaks caused by any damage or shock, the coils shall be repaired or replaced by one authorised Service Center. To ensure the effective and correct operation of the condenser coils, it is important to keep the condenser’s surface perfectly clean, and to check that there is no foreign matter, such as leafs, wires, insects, waste etc. If the coil becomes dirty, there is an increase in the absorption of electric energy. Furthermore, the maximum pressure alarm may be activated and may halt the unit.

The condenser must be cleaned with a LP compressed air jet, parallel to the aluminium fins, in the direction opposite to the air circulation.

To clean the coil a vacuum cleaner, or a jet of water and soap can also be used.

It is recommended to connect the refrigerant cylinder to the filling valve on the liquid line, and to arrange it in such a way as to inject only liquid refrigerant.

Then start the compressor and let the gas flow from the cylinder, up until the liquid flow, which can be observed through the sight glass, is limpid.

9.4 Compressor

Compressors are delivered with the necessary charge of lubricating oil. During normal operation, this charge is sufficient for the whole life of the unit, providing that the efficiency of the refrigeration circuit is satisfactory and if it has not been overhauled.

If the compressor needs to be replaced (following a mechanical failure or if burnt), contact one of manufacturer.

WARNING

against being switched on again. Wait for at least 5 minutes until all capacitors have been discharged. Close perfectly the FI housing before switching on again.

Be careful not to damage the aluminium fins during cleaning.

WARNING

Standard microchannel condenser coils are made of aluminium without coating, that is relatively corrosion resistant and suitable for installations in areas without corrosive agents.

In case of installation in environments with high level of pollutants, salts or other atmospheric agents that could shorten the life of heat exchangers, it is recommended to select a proper anticorrosion treatment protecting the overall coil.

Before the unit is installed, make sure that the coil configuration is compliant to Systemair Coil Policy. For additional information, please

WARNING

contact Systemair Service.

9 - Maintenance (continued)

9.6 Fans

The fans of the condenser, of axial type, are complete with impeller with aerodynamic profile blades and a cylindrical nozzle. The motor’s bearings are lubricated forever.

Before starting the appliance, after any maintenance operations involving the disconnection of 3-phase connections, check that the direction of rotation of the fans is the one indicated by the arrow (upward air current). If the direction of rotation is wrong, invert two of the three supply phases to the motor.

9.7 Dehydrating filter

The refrigeration circuits are provided with dehydrating filters.

The filter clogging is marked by the presence of air bubbles in the sight glass, or by the difference between the temperatures measured downstream from and upstream of the drying filter. If, once the cartridge has been replaced, there are still some air bubbles, the appliance has lost a part of the refrigerant charge in one or more points, that must be identified and serviced. In any case it is suggested the good practice to replace the filter cartridges at each maintenance interventions in order to keep the refrigerant circuit in full efficiency.

9.8 Sight glass

9.9 Electronic expansion valve

The circuit of the unit is equipped with electronic expansion valve.

The valve is calibrated for an overheating of 6 °C.

Procedure to check for overheating:

– Measure the suction pressure with the pressure gauges on the

board of the unit o using a pressure gauge connected to the service valve on the suction side.

– From the pressure gauge’s temperature scale, measure the

saturated suction temperature (Tsa) which corresponds to the pressure value.

– Using a contact pressure gauge affixed to the outlet fitting of the

gas of the evaporator, measure the actual temperature (Tse).

Overheating calculation (S):

S = Tse - Tsa

Overheating is regulated through the expansion valve.

If the electronic expansion valve cannot be regulated, it is probably broken, and shall be replaced. The replacement must be carried out by a Service Centre.

English

The sight glass is used for inspecting the refrigerant flow and the humidity % of the refrigerant. The presence of bubbles indicates that the dehydrating filter is clogged or the charge insufficient.

A colour indicator is positioned inside the sight glass. If you compare the colour of the indicator to the scale on the ring of the sight glass, you can calculate the percentage of humidity of the refrigerant. If it is excessive, replace the filter’s cartridge, operate the appliance for 1 day and then check the humidity % again. When the humidity % is within the pre-determined range, no other operations are required. If the humidity % is still too high, replace the dehydrating filter again, start the unit and operate it for another day.

9.10 Evaporator

Check at regular intervals that the water side of the heat exchanger is perfectly clean. To do this, measure the pressure drop, water side (see Section 8) or measure the temperature of the liquid leaving and entering the heat exchanger, and compare it to the evaporation temperature.

To obtain an effective heat exchange, the difference between the temperature of the leaving water and the saturated evaporating temperature must be in the 2 - 4 °C range. A greater difference would indicate a low efficiency of the heat exchanger (i.e. the heat exchanger is dirty).

In this case, the heat exchanger must be subjected to chemical cleaning, an operation that shall be carried out by authorised engineers.

For other maintenance operations (extraordinary overhauling, replacement of the heat exchanger etc.), contact an authorised Service Centre.

10 - Troubleshooting

The table below lists the anomalies of operation of the unit, the relevant causes and the corrective measures. For anomalies of any other type or not listed, contact one of authorised Service Centre for technical assistance.

Anomaly Cause Operation The unit continues

to work, but without cooling

Ice on the suction line

Excessive noise

Low oil level in the compressor

One or both compressors are not working

Activation of the LP alarm, stop of the unit

Activation of the HP alarm, stop of the unit

The liquid line is too hot

Frosting of the liquid line

Compressor with Frequency Inverter (FI) not available

Insufficient charge of refrigerant. Refill.

The dehydrating filter is clogged. Replace.

Wrong calibration of overheating.

Vibration of lines. Check the clamping brackets, if any.

Whistler emitted by the thermostatic expansion valve.

Noisy compressor.

One or more gas or oil leaks in the circuit. Identify and remove leaks.

Mechanical failure of the compressor. Request the intervention of a Service Centre.

Anomaly of the oil heater of the compressor’s base.

Breaking of the electric circuit.

Intervention of the HP pressure switch.

The fuse of the control circuit is broken. Check for ground dispersions and shor t circuits. Replace fuses.

Loosened terminals. Check and tighten.

Halt caused by thermal overload of the electric circuit.

Wrong wiring. Check wiring of check and safety devices.

The line voltage is too low.

Short-circuit of the compressor’s motor. Check the continuity of the winding.

Seized compressor. Replace the compressor.

Gas leak. Identify and remove the leak.

Insufficient charge. Refill.

Failure of the pressure switch. Replace the pressure switch.

Failure of the pressure switch. Check the operation of the pressure switch, replace it if defective.

The delivery valve is partially closed. Open the valve and replace it, if faulty. Substances with condensable gases in the

circuit. The fan of the condenser is stopped. Check cables and motor. If defective, repair or replace.

Insufficient charge. Identify and remove the cause of the loss of charge and refill.

The valve of the liquid line is partially closed. Check that valves are open.

The liquid filter is clogged. Replace the cartridge or the filter.

Communication between Fequency Inverter (FI) and unit control board interrupted

The unit control board is defective Change of control board

The Frequency inverter is defective Change of Frequency Inverter

Increase overheating.

Check the charge.

Refill.

Check the dehydrating filter.

Seized bearings; replace the compressor.

Check that the compressor’s locknuts are tightened.

Check the electric circuit and the resistor of the heater of the motor base, and replace defective components.

Check the electric circuit and detect any ground dispersions and short circuits. Check fuses.

Reset the pressure switch and the control panel and restart the appliance. Identify and remove the cause that enabled the pressure switch.

Check the operation of check and safety devices. Identify and remove the cause.

Check voltage. If problems regard the system, solve them. If they are caused by the distribution network, inform the Energy Distributor.

Drain the circuit.

Check that the data cable from unit control board to FI is not defective and the connection is well tightened

Check that the FI power supply cables are not defective and the connection is well tightened

Check that the main supply voltage is inside the permitted range of application

Check that the control transformer for auxiliary supply is not defective and the connection is well tightened

10 - Troubleshooting (continued)

The table below lists anomalies of operation, causes and corrective measures, specifically related to pump inverter (optional).

English

S.NO.

1 W/A2 Live zero error

2 W/A7 DC over voltage

3 W/A8 DC under voltage

4 W/A9 Inverter overloaded

WARNING / ALARM NO.

DESCRIPTION TROUBLESHOOTING

→ Check connections on all analog mains terminals. → Control card terminals 53 and 54 for signals, terminal 55 common → VLT® General Purpose I/O MCB 101 terminals 11 and 12 for signals, terminal 10

common → VLT® Analog I/O Option MCB 109 terminals 1, 3, and 5 for signals, terminals 2, 4, and 6 common. → Check that the frequency converter programming and switch settings to match the analog signal type.

→ Perform an input terminal signal test.

→ Connect a brake resistor. → Extend the ramp time. → Change the ramp type. → Activate the functions in parameter 2-10 Brake Function. → Increase parameter 14-26 Trip Delay at Inverter Fault. → If the alarm/warning occurs during a power sag, use kinetic back-up (parameter 14-10

MainsFailure).

→ Check that the supply voltage matches the frequency converter voltage. → Perform an input voltage test. → Perform a soft charge circuit test.

→ Compare the output current shown on the LCP with the frequency converter rated

current.

→ Compare the output current shown on the LCPwith the measured motor current. → Show the thermal frequency converter load onthe LCP and monitor the value. When

running above the frequency converter continuous current rating, the counter increases. When running below the frequency converter continuous current rating, the counter decreases.

Check for motor overheating:

→ Check if the motor is mechanically overloaded. → Check that the motor current set in parameter 1-24 Motor Current is correct.

5 W/A10

6 W/A11

7 W/A12 Torque limit

8 W/A27

9 A4 Mains phase loss → Check the supply voltage and supply currents to the frequency converter.

10 A13 Over Current

Motor ETR over temperature

Motor thermistor over temperature

Brake chopper shortcircuited

→ Ensure that the motor data in parameters 1–20 to 1–25 are set correctly. → If an external fan is in use, check that it is selected in parameter 1-91 Motor External

Fan. → Running AMA in parameter 1-29 Automatic Motor Adaptation (AMA) tunes the frequency converter to the motor more accurately and reduces thermal loading

Check for motor overheating:

→ Check if the motor is mechanically overloaded. → When using terminal 53 or 54, check that the thermistor is connected correctly between

either terminal 53 or 54 (analog voltage input) and terminal 50 (+10 V supply). Also check that the terminal switch for 53 or 54 is set for voltage. Check that parameter 1–93 Thermistor Source selects terminal 53 or 54. → When using terminal 18, 19, 31, 32, or 33 (digital inputs), check that the thermistor is connected correctly between the digital input terminal used (digital input PNP only) and terminal 50. Select the terminal to use in parameter 1–93 Thermistor Source.

→ If the motor torque limit is exceeded during ramp-up, extend the ramp-up time. → If the generator torque limit is exceeded during ramp-down, extend the ramp-down time. → If torque limit occurs while running, increase the torque limit. Make sure that the system

can operate safely at a higher torque.

→ Check the application for excessive current draw on the motor.

→ Remove power to the frequency converter and remove the brake resistor.

→ Remove the power and check if the motor shaft can be turned. → Check that the motor size matches the frequency converter. → Check that the motor data is correct in parameters 1-20 to 1-25.

10 - Troubleshooting (continued)

S.NO.

11 A14 Ground fault

12 A29 Drive over temperature

13 A30 Motor phase U missing

14 A31 Motor phase V missing → Remove the power from the frequency converter and check motor phase V.

15 A32 Motor phase W missing → Remove the power from the frequency converter and check motor phase W.

16 A47 24 V supply low → Check for a defective power card.

17 A65

WARNING / ALARM NO.

DESCRIPTION TROUBLESHOOTING

Remove power to the frequency converter and repair the ground fault. → Check for ground faults in the motor by measuring the resistance to ground of the motor cables and the motor with a megohmmeter. → Reset any potential individual offset in the 3 current transducers in . Perform the manual initialisation or perform a complete AMA. This method is most relevant after changing the power card.

Check for the following conditions.

→ The ambient temperature is too high. → The motor cables are too long. → Incorrect airflow clearance above and below the frequency converter. → Blocked airflow around the frequency conver ter. → Damaged heat sink fan. → Dirty heat sink.

→ Remove the power from the frequency converter and check motor phase U.

Control Board Overtemperature

→ Check that the ambient operating temperature is within the limits. → Check for clogged filters. → Check the fan operation. → Check the control card.

18 A244 Heatsink temp

19 A16 Shor t Circuit Remove the power to the frequency converter and repair the short circuit.

20 A33 Inrush fault → Let the unit cool to operating temperature

21 A38 Internal fault

22 A45 Ear th fault 2

23 A46 Pwr. card supply

24 A48 1.8 V supply low

25 A69 Pwr. Card Temp

→ Cycle power. → Check that the option is properly installed → Check for loose or missing wiring

→ Check for proper grounding and loose connections. → Check for proper wire size. → Check the motor cables for short circuits or leakage currents.

→ Check for a defective power card. → Check for a defective control card. → Check for a defective option card. → If a 24 V DC supply is used, verify proper supply power."

→ Check for a defective control card. → If an option card is present, check for overvoltage.

→ Check that the ambient operating temperature is within limits. → Check for clogged filters. → Check fan operation. → Check the power card.

11 - Spare Parts

11.1 Spare part list

The table below shows the list of spare parts recommended during the first two years of operation.

Component Number

HP pressure switch 1

LP pressure switch 1

Gas filter 2

Electronic expansion valve 2

Auxiliary relays 2

Fan’s fuses 6

Compressor’s fuses 6

Auxiliary fuses 6

Set of compressor contactors 1

Fan’s contactor 1

Water sensor 1

Air sensor 1

Electronic card 1

Keyboard 1

Compressor oil resistor 1

English

11.2 Oil for compressors

The compressors are lubricated with Ester oil BSE 170 (Viscosity of 170 St / 40 °C).

11.3 Wiring diagrams

The wiring diagrams are installed inside the doors of the electrical panels of the unit. Any request for wiring diagrams shall be forwarded to manufacturer’s Service Centre.

12 - Dismantling, Demolition and Scrapping

During the draining of the refrigeration circuits, do not let the refrigerant overflow in the surrounding atmosphere.

DANGER

For the disposal, contact the competent authority for information.

The circuit must be drained using suitable recovery equipment.

Do not disperse the waste oil of the compressors in the environment, since it contains some dissolved refrigerant.

After draining operations, the piping of the hydraulic networks can be disconnected and disassembled.

Once they have been disconnected as specified, the packaged units can be disassembled in a single piece. First of all, disassemble the anchoring screws and then lift the unit from the position of installation, and hook it to the lifting points provided, using suitable lifting equipment.

To this end, refer to Chapter 4 for the installation of these appliances, to Chapter 8 for their weights and Chapter 3 for handling.

The units that, once disconnected, cannot be removed in a single piece, must be dismantled on site; in this case, be very careful with the weight and handling of every single component.

It is always advisable to dismantle the units following the installation steps, but in reverse.

Unless otherwise specified, the maintenance operations listed below may be carried out by any trained maintenance operator.

12.1 Generalities

Open each line that supplies the unit, including the ones of control circuits. Make sure that all disconnecting switches are secured in the off position. The power cables can be disconnected and disassembled. Refer to Chapter 4 for the position of connection points.

Remove all the refrigerant from the refrigeration circuits of the unit and store it in suitable containers, using a recovery unit. If its characteristics have remained the same, the refrigerant can be used again. Contact the competent authority to obtain information about disposal. In NO event shall the refrigerant be discharged into the atmosphere. The oil in each refrigeration circuit must be drained and collected into a suitable container; then it shall be disposes of in conformity with local regulations that apply to the disposal of waste lubricants. Any oil spillage must be recovered and disposed of in like manner.

Isolate the unit’s heat exchangers from the external hydraulic circuits and drain the heat exchange sections of the plant.

If no shutoff valves have been provided, it may be necessary to drain the whole plant.

If a glycoled solution or a similar fluid has been used in the hydraulic circuits, or if chemical additives have been added to the circulating water, the circulating fluid MUST be drained in

DANGER

a proper way.

For NO reason shall a circuit containing glycoled water or a similar solution be discharged directly into the drains or surface waters.

Some residues of oil, glycoled water or similar solutions may remain in certain parts of the unit. These residues must be recovered and

DANGER

It is very important to ensure that, while a component of the unit is being removed, all the others are properly supported.

DANGER

Once disassembled, the components of the unit can be disposed of in conformity with current regulations.

disposed of according to the procedures specified above.

Use only lifting means of adequate capacity.

12.2 RAEE Directive (only UE)

• The RAEE Directive requires that the disposal and

recycling of electrical and electronic equipment must be handled through a special collection, in appropriate centers, separate from that used for the disposal of mixed urban waste.

• The user has the obligation not to dispose of the

equipment at the end of the useful life as municipal waste, but to send it to a special collection center.

• The units covered by the RAEE Directive are marked

with the symbol shown above.

• The potential effects on the environment and human

health are detailed in this manual.

Systemair srl Via XXV Aprile, 29 20825 Barlassina (MB) Italy

Tel. +39 0362 680 1 Fax +39 0362 680 693

www.systemair.com

As part of our ongoing product improvement programme, our products are subject to change without prior notice. Non contractual photos.

Dans un souci d’amélioration constante, nos produits peuvent être modiﬁés sans préavis. Photos non contractuelles.

In dem Bemühen um ständige Verbesserung können unsere Erzeugnisse ohne vorherige Ankündigung geändert werden. Fotos nicht vertraglich bindend.

A causa della politica di continua miglioria posta in atto dal costruttore, questi prodotti sono soggetti a modiﬁche senza alcun obbligo di preavviso. Le foto pubblicate non danno luogo ad alcun vincolo contrattuale.

Con objeto de mejorar constantemente, nuestros productos pueden ser modiﬁcados sin previo aviso. Fotos no contractuales.

Systemair SYSCREW 380, SYSCREW 450, SYSCREW 500, SYSCREW 590, SYSCREW 660 Users guide

Specifications and Main Features

Frequently Asked Questions

User Manual