Iom Aqcl 25 Manual

Installation and maintenance manual

Notice d’installation et de maintenance

Installations und Wartungshandbuch

Manuale di installazione e di manutanzione

Manual de instalacion y de mantenimiento

IOM AQC 01-O-1GBF - Part number / Code / code / Codice / Código : 3990256

Supersedes / Annule et remplace / annulliert und ersezt /

Annulla e sostituisce / anula y sustituye : None / Néant / Nichht / Nulla / Ninguno

AQCL / AQCH

AQU@LOGIC CENTRIFUGAL COOLING AND HEATPUMP MODEL

25 - 30 - 35 - 40 - 50 - 60

CHILLED WATER UNIT

UNITE DE PRODUCTION D’EAU GLACEE

CONTENTSCONTENTS

CONTENTS

GENERAL RECOMMENDGENERAL RECOMMEND

GENERAL RECOMMENDAA

ATIONSTIONS

TIONSTIONS

TIONS........................................................................................................................................................................................................................................................................

........................................................................................................................................................................................................................................................................

.................................................................................................................................... 33

SAFETY DIRECTIONS ............................................................................................................................................................................................................................. 3

WARNING ............................................................................................................................................................................................................................................ 3

PRESENTPRESENT

PRESENTAA

ATIONTION

TIONTION

TION ....................................................................................................................................................................................................................................................................................................................................

.................................................................................................................................................................. 44

WARRANTYWARRANTY

WARRANTY..................................................................................................................................................................................................................................................................................................................................................

......................................................................................................................................................................... 44

EQUIPMENT SAFETY DEQUIPMENT SAFETY D

EQUIPMENT SAFETY DAA

ATT

TAA

A............................................................................................................................................................................................................................................................................................

.............................................................................................................................................. 55

INSPECTION AND STINSPECTION AND ST

INSPECTION AND STORAORA

ORAORA

ORAGEGE

GEGE

GE ....................................................................................................................................................................................................................................................................................

.......................................................................................................................................... 66

CONTENTS OF PCONTENTS OF P

CONTENTS OF PARCELARCEL

ARCELARCEL

ARCEL ......................................................................................................................................................................................................................................................................................................

................................................................................................................................................... 66

PRODUCT OFFER AND VARIANTSPRODUCT OFFER AND VARIANTS

PRODUCT OFFER AND VARIANTS ................................................................................................................................................................................................................................................................

................................................................................................................................66

DESCRIPTIONDESCRIPTION

DESCRIPTION........................................................................................................................................................................................................................................................................................................................................

.................................................................................................................................................................... 77

CABINET AND FRAME ........................................................................................................................................................................................................................... 7

COMPRESSORS .................................................................................................................................................................................................................................... 7

EVAPORATORS ..................................................................................................................................................................................................................................... 7

CONDENSER BATTERIES ........................................................................................................................................................................................................................ 7

CONDENSER FANS ............................................................................................................................................................................................................................... 7

FAN CONTROLCOMMANDE DES VENTILATEURS ................................................................................................................................................................................... 7

REFRIGERATING CIRCUIT ..................................................................................................................................................................................................................... 7

POWER SUPPLY AND CONTROL BOX ..................................................................................................................................................................................................... 7

TECHNICAL SPECIFICATECHNICAL SPECIFICA

TECHNICAL SPECIFICATIONSTIONS

TIONSTIONS

........................................................................................................................................ 88

REFRIGERANT CHARGE ........................................................................................................................................................................................................................ 8

ÉLECTRIC SPÉCIFICATIONS ................................................................................................................................................................................................................... 8

AERAULIC TECHNICAL SPECIFICATIONS ............................................................................................................................................................................................... 8

DIMENSIONSDIMENSIONS

DIMENSIONS ..........................................................................................................................................................................................................................................................................................................................................

..................................................................................................................................................................... 99

HANDLINGHANDLING

HANDLING..................................................................................................................................................................................................................................................................................................................................................

......................................................................................................................................................................... 99

HANDLINGHANDLING

......................................................................................................................................................................... 99

WEIGHT ............................................................................................................................................................................................................................................... 9

DUCT OUTLET DIMENSIONSDUCT OUTLET DIMENSIONS

DUCT OUTLET DIMENSIONS................................................................................................................................................................................................................................................................................

........................................................................................................................................ 1010

1010

STANDARD BLOWING ......................................................................................................................................................................................................................... 10

REAR BLOWING .................................................................................................................................................................................................................................. 10

VERTICAL BLOWING ............................................................................................................................................................................................................................ 10

FLFL

FLOW RAOW RA

OW RAOW RA

OW RATE / EXTERNAL STTE / EXTERNAL ST

TE / EXTERNAL STTE / EXTERNAL ST

TE / EXTERNAL STAA

ATIC PRESSURETIC PRESSURE

TIC PRESSURETIC PRESSURE

TIC PRESSURE................................................................................................................................................................................................................................

................................................................................................................ 1111

1111

INSTINST

INSTALLAALLA

ALLAALLA

ALLATIONTION

TIONTION

................................................................................................................................................................. 1111

1111

CLEARANCE ....................................................................................................................................................................................................................................... 11

LOCATING THE UNIT ......................................................................................................................................................................................................................... 11

DE-ICING WATER DRAINAGE (AQCH MODELS ONLY) ......................................................................................................................................................................... 12

ANTI-VIBRATION SPRING-MOUNTED PADS INSTALLATION ................................................................................................................................................................... 12

HYDRAULIC CONNECTIONSHYDRAULIC CONNECTIONS

HYDRAULIC CONNECTIONS ..............................................................................................................................................................................................................................................................................

....................................................................................................................................... 1212

1212

HYDRAULIC CIRCUIT DIAGRAM .......................................................................................................................................................................................................... 13

WIRING DIAGRAM AND LEGENDWIRING DIAGRAM AND LEGEND

WIRING DIAGRAM AND LEGEND ..............................................................................................................................................................................................................................................................

............................................................................................................................... 1414

1414

WIRING DIAGRAM ............................................................................................................................................................................................................................. 14

LEGEND ............................................................................................................................................................................................................................................. 14

POWER SUPPLY ........................................................................................................................................................................................................................ 14

WIRING DIAGRAM KEY DESCRIPTIONS .................................................................................................................................................................................... 15

COOLING ................................................................................................................................................................................................................... 15

FAN MOTOR AND THEIR EQUIPMENT .......................................................................................................................................................................... 15

WATER CIRCUIT ........................................................................................................................................................................................................... 15

CONTROL AND REGULATION ..................................................................................................................................................................................... 16

NOT PROVIDED : ......................................................................................................................................................................................................... 16

RANGE AND SETTINGS OF THEMAL PROTECTION / NOMINAL INTENSITY OF THE CONTACTORS (CLASSE AC3) ...................................................................... 16

PRESSOSTATS SETTING ........................................................................................................................................................................................................... 16

MISCELLANEOUS .................................................................................................................................................................................................................... 16

ELECTRICAL CONNECTIONSELECTRICAL CONNECTIONS

ELECTRICAL CONNECTIONS ..............................................................................................................................................................................................................................................................................

....................................................................................................................................... 1717

1717

COMMISSIONINGCOMMISSIONING

COMMISSIONING ....................................................................................................................................................................................................................................................................................................................

.......................................................................................................................................................... 1919

1919

PRE-START CHECK LIST ........................................................................................................................................................................................................................ 19

ELECTRICAL CHECK ................................................................................................................................................................................................................ 19

HYDRAULIC CHECKS .............................................................................................................................................................................................................. 19

VISUAL CHECK ........................................................................................................................................................................................................................ 19

DUCTING .............................................................................................................................................................................................................................. 19

OPERATING CHECK LIST .................................................................................................................................................................................................................... 20

GENERAL ................................................................................................................................................................................................................................ 20

PHASE ROTATION PROTECTION .............................................................................................................................................................................................. 20

ELECTRICAL ............................................................................................................................................................................................................................. 20

SET POINTS ................................................................................................................................................................................................................. 20

OPERATING VOLTAGE: ................................................................................................................................................................................................. 20

CONTROL ................................................................................................................................................................................................................... 20

FAN & DRIVE ........................................................................................................................................................................................................................... 20

COMPRESSOR AND REFRIGERATION SYSTEM ........................................................................................................................................................................... 20

HYDRAULIC CIRCUIT ............................................................................................................................................................................................................... 21

FINAL TFINAL T

FINAL TASKSASKS

ASKSASKS

ASKS..........................................................................................................................................................................................................................................................................................................................................

..................................................................................................................................................................... 2222

2222

IN-IN-

IN-WARRANTY RETURN MAWARRANTY RETURN MA

WARRANTY RETURN MAWARRANTY RETURN MA

WARRANTY RETURN MATERIAL PROCEDURETERIAL PROCEDURE

TERIAL PROCEDURETERIAL PROCEDURE

TERIAL PROCEDURE ............................................................................................................................................................................................................

...................................................................................................... 2222

2222

SERVICE AND SPSERVICE AND SP

SERVICE AND SPARE PARARE PAR

ARE PARARE PAR

ARE PARTS ORDERTS ORDER

TS ORDERTS ORDER

TS ORDER ........................................................................................................................................................................................................................................................

............................................................................................................................ 2222

2222

FINAL CHECK ......................................................................................................................................................................................................................... 22

MAINTENANCEMAINTENANCE

MAINTENANCE................................................................................................................................................................................................................................................................................................................................

................................................................................................................................................................ 2323

2323

REGULAR MAINTENANCE ................................................................................................................................................................................................................... 23

REMOVAL OF PANELS ......................................................................................................................................................................................................................... 23

FAN DRIVE SYSTEM .............................................................................................................................................................................................................................. 23

COILS ................................................................................................................................................................................................................................................ 23

REFRIGERATION ................................................................................................................................................................................................................................. 23

SERVICING CHECKLIST ....................................................................................................................................................................................................................... 24

TROUBLE SHOOTROUBLE SHOO

TROUBLE SHOOTINGTING

TINGTING

TING ........................................................................................................................................................................................................................................................................................................

.................................................................................................................................................... 2525

2525

IT IS MANDIT IS MAND

IT IS MANDAA

ATYTY

TYTY

TYOROR

OROR

ORY TY T

Y TY T

Y TOO

CUTCUT

CUTOFF POWER SUPPLOFF POWER SUPPL

OFF POWER SUPPLOFF POWER SUPPL

OFF POWER SUPPLYY

BEFORE STBEFORE ST

BEFORE STARAR

ARAR

ARTING TTING T

TING TTING T

TING TOO

WORK IN THE ELECTRICWORK IN THE ELECTRIC

WORK IN THE ELECTRIC

CASING BOXESCASING BOXES

CASING BOXES

GENERAL RECOMMENDGENERAL RECOMMEND

GENERAL RECOMMENDAA

ATIONSTIONS

TIONSTIONS

TIONS

Please read the following safety precautions very carefully before installing the unit.

SAFETY DIRECTIONSSAFETY DIRECTIONS

SAFETY DIRECTIONS

Follow the safety rules in forces when you are working on your appliance.

The installation, commissioning and maintenance of these units should be performed by qualified personnel having a

good knowledge of standards and local regulations, as well as experience of this type of equipment.

The unit should be handled using lifting and handling equipment appropriate to the unit's size and weight.

Any wiring produced on site must comply with the corresponding national electrical regulations.

Make sure that the power supply and its frequency are adapted to the required electric current of operation, taking into

account specific conditions of the location and the current required for any other appliance connected with the same

circuit.

The unit must be EARTHED to avoid any risks caused by insulation defects.

It is forbidden to start any work on the electrical components if water or high humidity is present on the installation site.

WARNINGWARNING

WARNING

Cutoff power supply before starting to work on the appliance.

When making the hydraulic connections, ensure that no impurities are introduced into the pipe work.

The manufacturer declines any responsibility and the warrantly becomes void if these instructionsThe manufacturer declines any responsibility and the warrantly becomes void if these instructions

The manufacturer declines any responsibility and the warrantly becomes void if these instructions

are not respected.are not respected.

are not respected.

If you meet a problem, please call the Technical Department of your area.

If possible, assemble the mandatory or optional accessories before placing the appliance on its final location. (see

instructions provided with each accessory).

In order to become fully familiar with the appliance, we suggest to read also our Technical Instructions.

-The information contained in these Instructions are subject to modification without advance notice.

PRESENTPRESENT

PRESENTAA

ATIONTION

TIONTION

TION

All the models in the AQCL / AQCH liquid coolers range are produced to state-of-the-art design and manufacturing

standards. In this way, they offer guarantees of high performance and reliability as well as the capability of adapting to

all types of air conditioning installations operating with both chilled water and glycol solutions (and with hot water for

the Heat pump units). The unit is not suitable for any use other than those specified in the present manual.

Improper usage of the unit or a use for purposes other than those originally intended, without the prior approval by the

manufacturer or its agents, could result in the unit functioning outside its safe operating limits and could present risks

to both personnel and property.

The present manual contains all the information required for proper installation and commissioning of the unit as well

as user and maintenance instructions. We strongly advise you to read this manual carefully before commissioning and

using the unit.

With the exception of the operations described in this manual only qualified personnel, trained in the latest refrigeration

engineering practices, should perform installation, commissioning and maintenance operations.

The manufacturer declines all liability for personal injuries and material damage resulting from incorrect installation,

commissioning or use and/or insufficient maintenance. It also declines all liability for personal injuries and materiel

damage resulting from non-compliance with the procedures and instructions contained in the present manual.

WARRANTYWARRANTY

WARRANTY

The appliances are delivered fully assembled, factory tested and ready to operate.

Any modification to the units without the manufacturer’s prior approval, shall automatically render the warranty null

and void.

The following conditions must be respected in order to maintain the validity of the warranty:

➢Commissioning shall be performed by specialised technicians from technical services approved by the

manufacturer.

➢Maintenance shall be performed by technicians trained for this purpose.

➢Only Original Equipment spare parts shall be used.

➢All the operations listed in the present manual shall be performed within the prescribed timescales.

An appropriate water filter must be installed on the external cold water supply circuit. The warranty shall

be null and void if such a filter is not installed.

THE WARRANTY SHALL BE NULL AND VOID IN THE EVENTTHE WARRANTY SHALL BE NULL AND VOID IN THE EVENT

THE WARRANTY SHALL BE NULL AND VOID IN THE EVENT

OF NON-COMPLIANCE WITH ANY OF THE ABOVE CONDITIONS.OF NON-COMPLIANCE WITH ANY OF THE ABOVE CONDITIONS.

OF NON-COMPLIANCE WITH ANY OF THE ABOVE CONDITIONS.

EQUIPMENT SAFETY DEQUIPMENT SAFETY D

EQUIPMENT SAFETY DAA

ATT

TAA

Safety Data

Toxicity

In contact with skin

In contact with eyes

Ingestion

Inhalation

Further Medical Advice

Long-term exposure

Occupational exposure

limits

Stability

Conditions to avoid

Hazardous reactions

Hazardous decomposition

products

General precautions

Breathing protection

Storage Preservation

Protection clothes

Behaviour in case of leaks or

escapes

Disposal

Combustibility features

Containers

Behaviour in case of fire

Never forget to wear protection clothes and breathing apparatus. Isolate the source of the leakage,

provided that this operation may be performed in safety conditions. Any small quantity of

refrigerant which may have escaped in its liquid state may evaporate provided that the room is

well ventilated.In case of a large leakage, ventilate the room immediately. Stop the leakage with

sand, earth or any suitable absorbing material. Prevent the liquid refrigerant from flowing into

drains, sewers, foundations or absorbing wells since its vapours may create an asphyxiating

atmosphere.

The best procedure involves recovery and recycle. If this is not possible, the refrigerant shall be

given to a plant which is well equipped to destroy and neutralise any acid and toxic by-product

which may derive from its disposal.

If they are exposed to the fire, they shall be constantly cooled down by water sprays.

Containers may explode if they are overheated.

In case of fire wear protection clothes and self-contained breathing apparatus.

R407C: Non flammable in the atmosphere.

R407C

Bas.

R407C: High concentration levels of its vapours in the air can produce an anaesthetic effect,

including the loss of consciousness. Particularly severe exposures may cause heart arrhythmia

and sometimes prove to be also fatal.

R407C: A lifetime study which has been conducted on the effects inhalation may have on rats at

50,000 ppm has shown the onset of benign tumours of the testicle. These remarks suggest that

there is no danger for human beings if they are exposed to concentrations below the occupational

limits or equal to them.

Liquid splashes or sprays may cause freeze burns. Unlikely to be hazardous by skin absorption.

However, R407C may be slightly irritant and, if liquid, it has a strong degreasing effect. Flush

contaminated skin areas with running water. If it comes into contact with wet fabrics, the liquid

refrigerant will cause them to freeze and adhere to the skin. Carefully remove the contaminated

clothing since it might adhere to the skin and cause freeze burns. Apply to a doctor if the affected

skin areas should be reddened or irritated.

Vapours have no effect. Liquid splashes or sprays may cause freeze burns. In these cases rinse your

eyes with running water or with a solution for eye lavages for at least 10 minutes. Immediately

apply to a doctor.

Very unlikely to occur. If this should be the case, it may cause freeze burns. Never induce vomiting.

Keep the patient awake. Make it rinse its mouth with running water and make it drink about

1/4 of a litre. Immediately apply to a doctor.

At high concentrations there is a danger of asphyxia due to a reduced oxygen content in the

atmosphere. In these cases take the patient to the open air, in a cool place and keep it at rest.

Administer oxygen, if required. Apply artificial respiration if breathing has ceased or if it has

become irregular. In case of heart failure immediately apply cardiac massage. Immediately

apply to a doctor.

In case of doubt about the actual concentration, wear breathing apparatus. It should be self-

contained and approved by the bodies for safety protection.

Refrigerant containers shall be stored in a cool place, away from fire risk, direct sunlight and all

heat sources, such as radiators. The maximum temperature shall never exceed 45°C in the storage

place.

Wear boots, safety gloves and glasses or masks for facial protection.

A symptomatic and supportive therapy is generally suitable. A heart sensitisation has been

observed in some cases, as a result of exposures to particularly high concentrations. In the

presence of catecholamines (such as for example adrenaline) in the blood flow, it has increased

the irregularity of the cardiac rhythm and then caused the heart failure.

Use in the presence of exposed flames, red heat surfaces and high humidity levels.

Possibility of violent reactions with sodium, potassium, barium and other alkaline substances.

Incompatible materials: magnesium and all the alloys containing over 2% of magnesium.

Avoid the inhalation of high concentrations of vapours. The concentration in the atmosphere

shall be kept at the minimum value and anyway below the occupational limits. Since vapours

are heavier than air and they tend to stagnate and to build up in closed areas, any opening for

ventilation shall be made at the lowest level.

R407C: Recommended limits: 1,000 ppm v/v

8 hours TWA.

R407C: Not specified.

R407 C: Halogen acids deriving from thermal decomposition and hydrolysis.

INSPECTION AND STINSPECTION AND ST

INSPECTION AND STORAORA

ORAORA

ORAGEGE

GEGE

At the time of receiving the equipment carefully cross check all the elements against the shipping documents in order

to ensure that all the crates and boxes have been received. Inspect all the units for any visible or hidden damage.

In the event of shipping damage, write precise details of the damage on the shipperIn the event of shipping damage, write precise details of the damage on the shipper

In the event of shipping damage, write precise details of the damage on the shipper’s delivery note’s delivery note

’s delivery note’s delivery note

’s delivery note

and send immediately a registered letter to the shipper within 48 hours, clearly stating the damageand send immediately a registered letter to the shipper within 48 hours, clearly stating the damage

and send immediately a registered letter to the shipper within 48 hours, clearly stating the damage

caused. Forward a copy of this letter to the manufacturer or their representative.caused. Forward a copy of this letter to the manufacturer or their representative.

caused. Forward a copy of this letter to the manufacturer or their representative.

Never store or transport the unit upside down. It must be stored indoors, completely protected from rain, snow etc. The

unit must not be damaged by changes in the weather (high and low temperatures). Excessively high temperatures

(above 60 °C) can harm certain plastic materials and cause permanent damage. Moreover, the performance of certain

electrical or electronic components can be impaired.

CONTENTS OF PCONTENTS OF P

CONTENTS OF PARCELARCEL

ARCELARCEL

ARCEL

1 AQCL or AQCH unit

1 Bag with reference materiel.

1 installation and maintenance manual

1 regulation instruction manual

PRODUCT OFFER AND VARIANTSPRODUCT OFFER AND VARIANTS

PRODUCT OFFER AND VARIANTS

Several variants of these appliances are available:

➢Standard or Heat pump models

➢Ventilation

♦basse static pressure or high static pressure

♦standard blowing

♦vertical blowing

♦front/rear blowing

➢Regulation

♦fixed ventilation (fan) speed

♦Ventilation (fan) speed variation system

DESCRIPTIONDESCRIPTION

DESCRIPTION

The AQCL / AQCH units are monobloc, single circuit liquid coolers for air conditioning applications, operating with

water or water/glycol solution.

After the units are assembled, the refrigerating and electrical circuits are tested at the factory in order to guarantee

correct operation.

The are filled with an operational refrigerant fluid charge and are subjected to pressure tightness tests.

The AQCL Cooling only models can produce chilled water at temperatures varying between +18 °C to +5 °C or

chilled water/glycol solution at temperatures varying between +5 °C to -5 °C.

The AQCH Heat pump models can produce hot water at temperatures varying between +25 °C and +50 °C.

CABINET AND FRAMECABINET AND FRAME

CABINET AND FRAME

The units’ base and frame are made of high thickness galvanised steel elements assembled with stainless steel screws

and nuts.

All the cabinet panels can be easily removed to provide access to the various internal components. The galvanised

steel panels are coated with oven-baked white paint (RAL9001).

COMPRESSORSCOMPRESSORS

COMPRESSORS

The units are equipped with two sealed Scroll compressors, mounted in tandem.

The compressors are mounted on vibration absorbing rubber pads and are located inside an acoustic housing.

The compressor motors are cooled by a refrigerating gas and equipped with an internal heat overload thermistor. The

overload protection automatically resets itself after about 8 seconds.

EVEV

EVAPORAAPORA

APORAAPORA

APORATORSTORS

TORSTORS

TORS

The evaporators are of the brazed stainless steel plate heat exchanger type with thermal insulation.

Their service pressure shall be 10 bar (water side) and 30 bar (refrigerant side).

The evaporator is protected against freezing by an electric resistance, a differential pressure pressostat (for models 20

to 30) and a flow controller (for models 40 to 80).

CONDENSER BACONDENSER BA

CONDENSER BATTERIESTTERIES

TTERIESTTERIES

TTERIES

The condenser batteries are made of weld-free copper pipes that are arranged in staggered rows and crimped in

aluminium fins. The batteries’ service pressure is 28 bar.

CONDENSER FCONDENSER F

CONDENSER FANSANS

ANSANS

ANS

The condenser fans are of the centrifugal type with dual turbines and are driven by a pulley system. The allow aeraulic

adjustments to be made during installation.

FAN CONTROLCOMMANDE DES VENTILAAN CONTROLCOMMANDE DES VENTILA

AN CONTROLCOMMANDE DES VENTILAAN CONTROLCOMMANDE DES VENTILA

AN CONTROLCOMMANDE DES VENTILATEURSTEURS

TEURSTEURS

TEURS

The units can be equipped with a ventilation (fan) speed regulator operating in relation to condensing pressure. This

enables system operation at outdoor temperatures as low as -7 °C.

REFRIGERAREFRIGERA

REFRIGERATING CIRCUITTING CIRCUIT

TING CIRCUITTING CIRCUIT

TING CIRCUIT

Each unit has a single refrigerating circuit equipped with an external service valve (for raising the refrigerant pressure

and for filling the refrigerant fluid charge), with a liquid inspection porthole integrating a humidity indicator, a

dehumidification filter and a thermostatic pressure relief valve.

A high pressure pressostat and high and low pressure transducers are also provided on the refrigerating circuit.

POWER SUPPLY AND CONTROL BOXPOWER SUPPLY AND CONTROL BOX

POWER SUPPLY AND CONTROL BOX

All the control and motor starting equipment necessary for efficient unit operation is wired and tested at the factory.

A service hatch, offering easy access, protects the power supply and control components.

TECHNICAL SPECIFICATECHNICAL SPECIFICA

TECHNICAL SPECIFICATIONSTIONS

TIONSTIONS

TIONS

REFRIGERANT CHARGEREFRIGERANT CHARGE

REFRIGERANT CHARGE

The refrigerant fluid charges are provided for information purposes only. When filling the installation with these products

(Split) this charge is to be added to optimise their performance.

Therefore, both the installation itself and its environment are critical parameters for its proper operation.

ÉLECTRIC SPÉCIFICAÉLECTRIC SPÉCIFICA

ÉLECTRIC SPÉCIFICATIONSTIONS

TIONSTIONS

TIONS

IMPORIMPOR

IMPORTT

TANTANT

ANTANT

ANT

* These values are given for guidance. They must be checked and adjusted according to prevailing standards.

They depend on the system installed and the cables used.

AERAAERA

AERAULIC TECHNICAL SPECIFICAULIC TECHNICAL SPECIFICA

ULIC TECHNICAL SPECIFICAULIC TECHNICAL SPECIFICA

ULIC TECHNICAL SPECIFICATIONSTIONS

TIONSTIONS

TIONS

Packagedmodel253035405060

Refrigerant charge

6 500 g 7 050 g 7600 8500 g 13760 g 16000 g

25 30 35 40 50 60

Powersupply3N~400V-50Hz ••••••

Cooling + Fan

(or heatpump heating)

Maximum Current A 27 29 36 38 50 58.3

Fuse Rating A M A 32 32 40 40 63 63

FuseratingASE/VDE* A353540406363

Total Starting Current A 132 137 98 124.5 148 166

Power supply cable* mm² 5G6 5G6 5G10 5G10 5G25 5G25

Connections

Maximum Current A 3.7 4.7 6.3 6.3 5.2 6.4

Cable section* mm² 4G1.5 4G1.5 4G1.5 4G1.5 4G1.5 4G1.5

Type of appliance

25 30 35 40 50 60

Number of fans 2 2 2 2 2 2

Typ

Drive typ (belt)

Power supply

Motor

Rating PE kW 3 2.2 3 4 5.5 5.5

GE kW 4 4 4 5 7.5 7.5

Speed tr/min 1420 1420 1420 1420 1420 1420

Models

Centrifugal

Belt with variable pulleys

3N ~400 V - 50 Hz

DIMENSIONSDIMENSIONS

DIMENSIONS

HANDLINGHANDLING

HANDLING

WEIGHTWEIGHT

WEIGHT

ABC

25 1505 1750 890

30 1505 1750 890

35 1505 1750 890

40 1773 2206 890

50 1773 2206 890

60 1773 2206 890

AQCL AQCH

25 387 kg 395 kg

30 405 kg 420 kg

35 415 kg 435 kg

40 575 kg 580 kg

50 630 kg 650 kg

60 660 kg 670 kg

NET WEIGHT

COOLING ONLY AND HEATPUMP

Use spreaders

HANDLINGHANDLING

HANDLING

1010

DUCT OUTLET DIMENSIONSDUCT OUTLET DIMENSIONS

DUCT OUTLET DIMENSIONS

STST

STANDAND

ANDAND

ANDARD BLARD BL

ARD BLARD BL

ARD BLOWINGOWING

OWINGOWING

OWING

REAR BLOWINGREAR BLOWING

REAR BLOWING

ABCDEFG

25 185 440 425 1150 290 900 95

30 150 1350 250 1115 350 1600 950

35 150 1350 250 1115 350 1600 950

40 285 1400 530 1275 450 2010 1085

50 285 1400 530 1275 450 2010 1085

60 285 1400 530 1275 450 2010 1085

VERTICAL BLOWINGVERTICAL BLOWING

VERTICAL BLOWING

ABCD

25 109 348 252 1348

30 109 348 252 1348

35 109 348 252 1348

40 215 445 595 1490

50 215 445 595 1490

60 215 445 595 1490

ABCDE

25 185 440 425 1150 290

30 150 1350 250 1115 350

35 150 1350 250 1115 350

40 285 1400 530 1275 450

50 285 1400 530 1275 450

60 285 1400 530 1275 450

1111

FLFL

FLOW RAOW RA

OW RAOW RA

OW RATE / EXTERNAL STTE / EXTERNAL ST

TE / EXTERNAL STTE / EXTERNAL ST

TE / EXTERNAL STAA

ATIC PRESSURETIC PRESSURE

TIC PRESSURETIC PRESSURE

TIC PRESSURE

25 30 35 40 50 60

m³/h 13500 14000 15000 15500 19000 20000

PE Pa max 130 130 130 130 130 130

GE Pa max 200 200 200 200 190 190

INSTINST

INSTALLAALLA

ALLAALLA

ALLATIONTION

TIONTION

TION

You can adjust flow rate and available static pressure with a variable pulley of the outdoor unit (SEE APPENDIX).

CLEARANCECLEARANCE

CLEARANCE

The unit is not designed to withstand weights or stresses from adjacent equipment, pipe work or

constructions. Any foreign weight or stress on the unit structure could lead to a malfunction or a

collapse with dangerous consequences for personnel and property. In such an event, the warranty shall

be null and void.

Minimum clearance to be provided for

maintenance access.

Dimensions depend on the facory

configuration.

The unit base shall be arranged as indicated in the manual. There could be a risk of personal injury or

damage to property in the event of the unit being incorrectly supported.

The unit must be installed on a firm level foundation, of adequate strength to support its full operating weight.

1. It must be high enough to permit good drainage of defrost water and allow any heavy ice to fall away

form the coil during defrost cycle.

2. Keep duct connections to a minimum to reduce duct losses.

3. When locating unit give consideration to, and locate unit as remote as possible minimise noise, as heat

pump loads are greatest at night time.

4. The unit must be pitched slightly towards condensate drain outlet to provide positive drainage of condensates.

5. All electrical and ductwork connections to the unit must be made via flexible connections to prevent

transmission of vibration.

6. In addition to the service clearances noted on the dimension sheet it is essential that provision is made

for adequate and safe service access.

LOCAOCA

OCAOCA

OCATING THE UNITTING THE UNIT

TING THE UNITTING THE UNIT

TING THE UNIT

1212

DEDE

DE-ICING W-ICING W

-ICING W-ICING W

-ICING WAA

ATER DRAINATER DRAINA

TER DRAINATER DRAINA

TER DRAINAGE (AGE (A

GE (AGE (A

GE (AQCH MODELS ONLQCH MODELS ONL

QCH MODELS ONLQCH MODELS ONL

QCH MODELS ONLY)Y)

Y)Y)

When the AQCH unit operates in Heat pump mode, water drains from below during regular de-icing cycles.

When installing the unit, a minimum distance of 200 mm of free clearance above the ground must be maintained to

allow the de-icing water to drain freely without forming ice below the unit.

The AQCH units must be installed in areas where the de-icing water will not present any risks of damage.

ANTI-ANTI-

ANTI-VIBRAVIBRA

VIBRAVIBRA

VIBRATION SPRINGTION SPRING

TION SPRINGTION SPRING

TION SPRING-MOUNTED P-MOUNTED P

-MOUNTED P-MOUNTED P

-MOUNTED PADS INSTADS INST

ADS INSTADS INST

ADS INSTALLAALLA

ALLAALLA

ALLATIONTION

TIONTION

TION

Prepare the ground surface area. It must be flat and level. Raise the unit and insert the pads in accordance with the

following instructions.

➢Assemble the headless screw.

➢Insert the screw in the threaded hole situated on the top of the

anti-vibration spring-mounted pad. Position the pad under the

unit’s base and insert the headless screw through the base hole.

➢Check that the unit is positioned correctly on the washers (E).

Turn the nut (D) with a 13 mm spanner to adjust the height as

required.

➢Lock the position with the spring washer (F) and the nut (C). After

installation, check the correct operation of the pads.

HYDRAULIC CONNECTIONSHYDRAULIC CONNECTIONS

HYDRAULIC CONNECTIONS

The external water system must comprise the following elements:

➢A circulation pump supplying sufficient water flow and available pressure.

➢The primary water system shall not contain less than 2.5 litres of water per kW of cooling capacity. If the

total volume in the primary system pipe work and in the evaporator is insufficient, a heat-insulated tank

shall be installed.

➢This will avoid continual compressor start-ups.

➢A diaphragm type expansion tank equipped with a safety valve with a set discharge point. The valve shall

be visible.

The external hydraulic circuit must provide constant water circulation in the evaporator for all operating

settings and conditions.

The size of the expansion tank must be sufficient to receive a 2% increase in the system’s total fluid

volume (evaporator, pipe links, user circuits and tank, if supplied). It is not necessary to insulate the

expansion tank, as water does not circulate through it under normal operating conditions.

HYDRAULIC CIRCUIT WATER VOLUME

SEE APPENDIXSEE APPENDIX

SEE APPENDIX

1313

Models 20 to 30 are equipped with a differential pressostat as standard equipment. The pressostat detects water

pressures losses across the evaporators and shuts down the unit in the event of an anomaly occurring.

On models 40 to 60, a water flow controller is fitted instead of the differential pressostat.

In addition:

➢Install stop cocks on the evaporator water inlet and outlet pipes.

➢Install an evaporator by-pass with a stop cock.

➢Install air bleed valves at the highest points on the pipe links.

➢Install suitable system drainage points (with take-offs, taps, etc.) on the lowest points on the pipe links.

➢Insulate all pipe work to prevent heat losses.

Prior to filling the system, ensure that it contains no foreign bodies (sand, stones, rust or brazing flakes,

swarf) or any other material that might damage the evaporators.

The water used to fill the circuit should be treated, as required, to ensure a correct pH value.

When two or three units are connected in parallel, it is recommended that the return circuit connections are reversed

(see below) in order to reduce the pressure loss in each unit’s circuit.

UNITA' 1

UNITA' 2

N°1

N° 2

SVGS

S : Taps/stop cocks

VG : Balancing valves

The standard evaporators fitted to AQC units are designed for cooling solutions of water and ethylene glycol, with an

anti-corrosion additive, for protection down to temperatures of -8 °C (R 407C).

Refer to the Appendix for the quantity of ethylene glycol to be added.

The quantities are defined as a percentage in relation to the theoretical weight of water contained in the circuit.

The inlet and outlet water pipe links must be connected correctly, as indicated on the labels situated close to the pipe

unions.

Connect the external water supply pipes to the unit’s water inlet and outlet unions.

SEE APPENDIXSEE APPENDIX

SEE APPENDIX

HYDRAULIC CIRCUIT DIAGRAMHYDRAULIC CIRCUIT DIAGRAM

HYDRAULIC CIRCUIT DIAGRAM

LEGEND N 728

WIRING DIAGRAM AND LEGEND

WIRING DIAGRAM SEE APPENDIX

SE3289models 25/30/35 Control 230V50Hz+/- 10%

SE3288models25/30/35 Power Tri 400V+N 50Hz +/- 10%

SE3312models40/50/60 Control 230V50Hz+/- 10%

SE3313models40/50/60 Power Tri 400V+N 50Hz +/- 10%

POWER SUPPLY

This supply is protected upstreamby an FFG general supply fuse holder, to be provided by the installer, in accordance

with Table 1 – Small equipment or Table 2 – Large Equipment. The fuse holder shall be mounted close to the unit.

The electrical installation and the wiring of this unit shall comply with local electrical installation standards.

➢Thee phase 400 V~ + Neutral + Ground:

On terminals P-E ; N ; L1 ; L2 ; L3 on Main Terminal Block X1.

➢Three phase 400V ~ + Ground: (Models 40 to 80 only: Transformer option obligatory)

On terminals P-E ; L1 ; L2 ; L3 and Ground on Main Terminal Block X1.

25 32 A 25 A 80 A

30 32 A 27 A 82 A

35 40 A 31 A 122 A

40 50 A 44 A 140 A

50 50 A 46.8 A 186 A

60 63 A 53 A 232 A

AQCL

AQCH FFG Fuse

aM Type Full load current

(max.) 400V Starting

amperage (max.)

25 32 A 27 A 82 A

30 32 A 29 A 92 A

35 40 A 33 A 124 A

40 63 A 47 A 142 A

50 63 A 51 A 188 A

60 63 A 56 A 236 A

AQCL

AQCH FFG Fuse

aM Type Full load current

(max.) 400V Starting

amperage (max.)

TABLE 1: CASE SMALL EQUIPMENT

TABLE 2: CASE LARGE EQUIPMENT

1515

WIRING DIAGRAM KEY DESCRIPTIONSWIRING DIAGRAM KEY DESCRIPTIONS

WIRING DIAGRAM KEY DESCRIPTIONS

FFG : Safety fuses (not provided)

X1 : Main Terminal Block (mod.40 à 60)

QG : Main supply switch

KA1 : Three phase network control relay (phase sequence and cut-out)

FF7 : magneto-thermal trip switch

FAN MOAN MO

AN MOAN MO

AN MOTT

TOR AND THEIR EQUIPMENTOR AND THEIR EQUIPMENT

OR AND THEIR EQUIPMENTOR AND THEIR EQUIPMENT

OR AND THEIR EQUIPMENT

M5 : Air exchanger fan motors

K5 : Motor power contactor M5

FM5 : Motor internal safety M5

STANDARD OPTION

FT5 : Thermo-magnetic motor circuit breaker M5

OPTION ALL SEASONS

KA2 : Auxiliary heating demand relay (Heat pump models)

ACS : Three phase frequency converter with RFI filter (SEE INSTALLATION MANUAL)

COOLINGCOOLING

COOLING

M1/M2 : Refrigerating compressor

KS1/KS2 : Internal safeties of compressors M1/M2 (mod. 40/50/60)

K1/K2 : Compressor power contactor M1/M2

FT1/FT2 : Thermo-magnetic compressor circuit breaker M1/M2 (mod. 25/30)

HP1 : High pressure pressostats (automatic reset)

FPC : Condenser pressure transducer

FPE : Evaporator pressure transducer

R1/R2 : Sump heating resistances.

RV1 : Cycle reversal valve (Heat pump model).

WAA

ATER CIRCUITTER CIRCUIT

TER CIRCUITTER CIRCUIT

TER CIRCUIT

FDP : Water circuit inlet : outlet differential pressostat (Contact normally open when no voltage present and no

pressure present in the circuit)(mod 25/30/35) (mod 25/30/35)

FS : Water flow detector (FLOW SWITCH) (mod 40/50/60)

RAG : Plate exchanger anti-freezing re-heater (2 IN mod. 40/50/60)

OPTION PUMP

M4 : Water pump

K4 : Pump contactor MP

FT4 : Thermo-magnetic pump relay MP

1616

CONTROL AND REGULACONTROL AND REGULA

CONTROL AND REGULATIONTION

TIONTION

TION

PCB : Centralised control module management module

T1 : 400/230V single phase transformer

ST1 : Inlet water temperature sensor

ST2 : Outlet water temperature sensor

ST3 : Condensing temperature sensor

ST4 : Outdoor air temperature sensor

SM1 : ON/OFF switch in casing

OCT: Condenser temperature sensor (Heat pump models)

NOT PROVIDED :NOT PROVIDED :

NOT PROVIDED :

SD/N : Day / night changeover

SLS : Load-shedding switch

RANGE AND SETTINGS OF THEMAL PRORANGE AND SETTINGS OF THEMAL PRO

RANGE AND SETTINGS OF THEMAL PROTECTION / NOMINAL INTENSITY OF THETECTION / NOMINAL INTENSITY OF THE

TECTION / NOMINAL INTENSITY OF THETECTION / NOMINAL INTENSITY OF THE

TECTION / NOMINAL INTENSITY OF THE

CONTCONT

CONTAA

ACTCT

CTCT

CTORS (CLASSE AORS (CLASSE A

ORS (CLASSE AORS (CLASSE A

ORS (CLASSE AC3)C3)

C3)C3)

C3)

25 30 35 40 50 60

range 9 - 14 A 9 - 14 A 13 - 18 A 13 - 18 A 20 - 25 A 20 - 25 A

Adjustment 10 A 11.5 A 13 A 16 A 21 A 23 A

range 9 - 14 A 9 - 14 A 9 - 14 A 13 - 18 A 13 - 18 A 13 - 18 A

Adjustment 10 A 11.5 A 11.5 A 13 A 13 A 16 A

range 1.6 – 2,5 A 1.6 – 2.5 A 1.6 – 2.5 A 1.6 – 2.5 1.6 – 2.5 2.5 - 4 A

Adjustment 1.7 A 1.7 A 1.7 A 2.1 A 2.1 A 3.1 A

range 6 – 10 A 6 – 10 A 6 – 10 A 6 - 10 A 9 - 14 A 9 - 14 A

Adjustment 6.3 A 6.3 A 6.3 A 6.3 A 11 A 11 A

range 6 – 10 A 6 – 10 A 6 – 10 A 6 - 10 A 13 - 18 A 13 - 18 A

Adjustment 8 A 8 A 8 A 8 A 14.8 A 14.8 A

K1 12 A 12 A 12 A 18 A 25 A 25 A

K2 12 A 12 A 12 A 18 A 18 A 18 A

K5 9A 9A 9A 9A9A9A

K4 9A 9A 9A 9A9A9A

MODELS

AC3 CONTACTOR

FT4

FT5

FT2

PRESSOSTPRESSOST

PRESSOSTAA

ATS SETTINGTS SETTING

TS SETTINGTS SETTING

TS SETTING

HP1 : High pressure fixed setting 27,5 bars (400 PSI )

FDP : fixed setting DP on the water circuit 0,05 bar (mod 25/30/35)

MISCELLANEOUSMISCELLANEOUS

MISCELLANEOUS

SHM : Puple shunt to be removed when installing a remote ON/OFF switch between terminals 5 and 6

(40m. maximum).

Note: ON mode = contact closed

1717

ELECTRICAL CONNECTIONSELECTRICAL CONNECTIONS

ELECTRICAL CONNECTIONS

WARNINGWARNING

WARNING

BEFORE CARRBEFORE CARR

BEFORE CARRYING OUT ANY WORK ON THE EQUIPMENTYING OUT ANY WORK ON THE EQUIPMENT

YING OUT ANY WORK ON THE EQUIPMENTYING OUT ANY WORK ON THE EQUIPMENT

YING OUT ANY WORK ON THE EQUIPMENT,,

MAKE SURE THAMAKE SURE THA

MAKE SURE THAT THE ELECTRICAL POWER SUPPLT THE ELECTRICAL POWER SUPPL

T THE ELECTRICAL POWER SUPPLT THE ELECTRICAL POWER SUPPL

T THE ELECTRICAL POWER SUPPLY ISY IS

Y ISY IS

Y IS

DISCONNECTED AND THADISCONNECTED AND THA

DISCONNECTED AND THAT THERE IS NO POSSIBILITY OFT THERE IS NO POSSIBILITY OF

T THERE IS NO POSSIBILITY OFT THERE IS NO POSSIBILITY OF

T THERE IS NO POSSIBILITY OF

THE UNIT BEING STTHE UNIT BEING ST

THE UNIT BEING STARAR

ARAR

ARTED INADTED INAD

TED INADTED INAD

TED INADVERVER

VERVER

VERTENTLTENTL

TENTLTENTL

TENTLYY

Y..

NON-COMPLIANCE WITH THE ABOVE INSTRUCTIONS CANNON-COMPLIANCE WITH THE ABOVE INSTRUCTIONS CAN

NON-COMPLIANCE WITH THE ABOVE INSTRUCTIONS CAN

LEAD TLEAD T

LEAD TO INJURO INJUR

O INJURO INJUR

O INJURY OR DEAY OR DEA

Y OR DEAY OR DEA

Y OR DEATH BTH B

TH BTH B

TH BY ELECTROCUTIONY ELECTROCUTION

Y ELECTROCUTIONY ELECTROCUTION

Y ELECTROCUTION..

The electrical installation must be performed by a fully qualified electrician, and in accordance with local electrical

standards and the wiring diagram corresponding to the unit model.

Any modification performed without our prior authorisation may result in the unit’s warranty being declared null and

void.

The power supply cable section must be sufficient to provide the appropriate voltage to the unit’s power supply

terminals, both at start-up and under full load operating conditions.

The power supply cable shall be selected in accordance with the following criteria:

1. Power supply cable length.

2. Maximum unit starting current draw – the cables shall supply the appropriate voltage to the unit terminals

for starting.

3. Power supply cables’ installation mode.

4. Cables’ capacity to transport the total system current draw.

Starting current draw and total current draw are indicated on the unit’s wiring diagram.

Short circuit protection shall be provided. This protection shall comprise fuses or circuit breakers with high breaking

capacity, mounted on the distribution board.

If the local controls includes a remote ambient temperature sensor and/or a set temperature adjustment module, these

shall be connected with shielded cable and shall not pass through the same conduits as the power supply cables as the

voltages induced may create reliability faults in the unit’s operation.

VERVER

VERY IMPORY IMPOR

Y IMPORY IMPOR

Y IMPORTT

TANTANT

ANTANT

ANT::

3N~400V3N~400V

3N~400V-50HZ-50HZ

-50HZ-50HZ

-50HZ

The outdoor unit is equipped as standard with a phase sequence and cut-out controller located in the electrical box.

THIS PRODUCT IS EQUIPPED WITH A PHASE SEQUENCE CONTROLLER. THE LED’s INDICATE THE FOLLOWING

CONDITIONS:

Green LED =1: low voltage supply

the compressor rotation direction is correct

Green LED =flickering: phase inversion

Green LED =0: phase absent

the compressor and the fans do not start.

1818

These units are equipped with a local switch used as general terminal board.

The switch can be padlocked.

A circuit breaker or fuse holder ( not supplied ) must be installed on the main power

supply of the unit in accordance with the circuit diagram; for the raitings, refer to the

electrical specifications.

Use a pozidrive M3.5 screwdriver, Form Z, to make the connections.

Press to unclip and

withdraw the "local

switch" unit on the

terminal board.

Max. tightening torque

➢models 25-30-35

2,1Nm

➢models 40-50-60

4Nm

3N~400V3N~400V

3N~400V

Models

25 - 30 - 35

Models

40 - 50 - 60

1919

COMMISSIONINGCOMMISSIONING

COMMISSIONING

PREPRE

PRE--

-STST

STST

STARAR

ARAR

ART CHECK LISTT CHECK LIST

T CHECK LISTT CHECK LIST

T CHECK LIST

ELECTRICAL CHECKELECTRICAL CHECK

ELECTRICAL CHECK

1. Electrical installation has been carried out according to unit wiring diagram and the Supply Authority

Regulations.

2. Correct size fuses or circuit breaker installed at switchboard.

3. Supply voltages as specified on unit circuit diagram.

4. All terminals right.

5. Wiring clear of or protected from pipework and sharp edges.

HYDRAULIC CHECKSHYDRAULIC CHECKS

HYDRAULIC CHECKS

1. Check that the external water circuit components (pumps, user equipment, filters, expansion tank and

reservoir if supplied) have been correctly installed in accordance with the manufacturer’s recommendations

and that the water inlet and outlet connections are correct.

2. Check that the hydraulic circuit is filled correctly and that the fluid flows freely without any signs of leaks

or air bubbles. When ethylene glycol anti-freeze is used, check that the concentration level is correct.

3. Check the direction of rotation of the pump and leave the fluid to circulate for at least 12 hours for each

pump. Then clean the pump inlet water filter.

4. Adjust the water flow in order to comply with the specifications.

5. Check that the water quality complies with the indicated standards.

6. Check that the oil heating resistances have been energised for at least 12 hours.

VISUAL CHECKVISUAL CHECK

VISUAL CHECK

1. Clearance around unit including condenser air entry and discharge and service access.

2. Unit mounted as specified.

3. For loose or missing bolts or screws.

4. For refrigerant leaks in connections and components.

DUCTINGDUCTING

DUCTING

1. Connections flexible type, secure and detachable for service access.

2. Seams and joints airtight.

3. Fan drive

Pulley adjustment correct for expected air quantity and static pressure.

Belt tension correct.

4. Check that the Biloc Sheaves on both the fan shaft and the motor are correctly fitted to the bush and

rotate without wobble.

5. Ensure that the motor is securely bolted to the mounting plate square to the fan shaft.

6. Using a string line or straight edge ensure that the pulley grooves are correctly aligned.

7. Improper alignment of the pulleys and belt may cause vibration in the fan drive and result in premature

wear.

2020

OPERAOPERA

OPERATING CHECK LISTTING CHECK LIST

TING CHECK LISTTING CHECK LIST

TING CHECK LIST

PLEASE NOPLEASE NO

PLEASE NOTE READ THE ELECTRONIC CONTROLSTE READ THE ELECTRONIC CONTROLS

TE READ THE ELECTRONIC CONTROLSTE READ THE ELECTRONIC CONTROLS

TE READ THE ELECTRONIC CONTROLS

OPTION FOR CAC CONTROLER BEFORE PROCEEDING.OPTION FOR CAC CONTROLER BEFORE PROCEEDING.

OPTION FOR CAC CONTROLER BEFORE PROCEEDING.

GENERALGENERAL

GENERAL

Cheek for any unusual noises or vibration in the running components, particularly the indoor fan drive system.

PHASE ROPHASE RO

PHASE ROTT

TAA

ATION PROTION PRO

TION PROTION PRO

TION PROTECTIONTECTION

TECTIONTECTION

TECTION

If the phase rotation is not correct, the phase rotation protection device will prevent the machine from starting.

ELECTRICALELECTRICAL

ELECTRICAL

SET POINTSSET POINTS

SET POINTS

1. Set point of compressor overload relay.

2. Set point of indoor fan motor overload relay.

NOTE : The outdoor fan motor is fitted with an internal automatic reset overload device.

OPERAOPERA

OPERATING VTING V

TING VTING V

TING VOLOL

OLOL

OLTT

TAA

AGEGE

GEGE

GE::

Recheck voltage at unit supply terminals.

CONTROLCONTROL

CONTROL

1. Operate system switches and control thermostat.

2. Check unit is wired for correct control of unit fan, cooling and heating functions.

3. Verify all sensor input, using the ILTC controller display.

FAN & DRIVEFAN & DRIVE

FAN & DRIVE

1. Check that the Sheaves on both the fan shaft and the motor are correctly fitted to the bush and rotate

without wobble.

2. Check the alignment of the pulleys

3. Rotation: Cheek direction of rotation.

4. Static Pressure Loss and Air Quantity

5. The indoor air quantity must be within the application limits of the unit supply air fan (see fan curves).

The associated static pressure must be such that the motor is operating within its normal power rating.

With all panels in place measure current in each phase of the indoor fan motor using clip-on type

ammeter. Compare this to the nameplate full load current.

COMPRESSOR AND REFRIGERACOMPRESSOR AND REFRIGERA

COMPRESSOR AND REFRIGERATION SYSTEMTION SYSTEM

TION SYSTEMTION SYSTEM

TION SYSTEM

1. If outdoor air temperature is below zero make sure that the compressor crankcase heater has been on for

at least one hour before storting compressor.

2. Running check: Start the compressor. Check for any unusual noise and vibration.

3. Operating Pressures: Operate the unit for a minimum of 20 minutes to ensure that the refrigerant

pressures have stabilised, and cheek that they are within normal operating limits.

4. Operating Temperature: Check discharge, suction and liquid temperatures.

5. Discharge temperature on cooling cycle should normally not exceed 105°C.

6. Suction superheat should be 6°C ±2°C.

This manual suits for next models

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