CLIVET MSAT-XEE 8.2 User manual

M09G60E14-04 11-07-17

Installation and

operating manual

Air cooled condensing unit for outdoor installation

MSAT-XEE 8.2-30.2

Dear Customer,

We congratulate you on choosing this product

For many years Clivet has been oering systems that provide maximum comfort, together with high

reliability, eciency, quality and safety.

The aim of the company is to oer advanced systems, that assure the best comfort, reduce energy

consumption and the installation and maintenance cost for the life cycle of the system.

The purpose of this manual is to provide you with information that is useful from reception of

the equipment, through installation, operational usage and nally disposal so that this advanced

system oers the beat solution.

Yours faithfully.

CLIVET Spa

The data contained in this manual is not binding and may be changed by the manufacturer without

prior notice.

Reproduction, even is part, is FORBIDDEN © Copyright - CLIVET S.p.A. - Feltre (BL) - Italia

M09G60E14-04 MSAT-XEE 8.2-30.2 3

Index of contents

1 General description 4

2 Reception 6

3 Positioning 8

4 Refrigeranting connections 9

5 Electrical connections 12

6 Start-up 14

7 Control 17

8 Maintenance 25

9 Decommissioning 28

10 Residual risks 29

11 Dimensional drawings 30

12 Technical information 33

13 Accessories 35

14 Alarms - Status 39

15 Notes 41

4 MSAT-XEE 8.2-30.2 M09G60E14-04

1 General description

1.1 Manual

The manual provides correct unit installation, use and maintenance.

Pay particular attention to:

Warning, identies particularly important operations or information.

Prohibited operations that must not be carried out, that compromise the operating of the unit or may cause damage to persons or things.

•It is advisable to read it carefully so you will save time during operations.

•Follow the written indications so you will not cause damages to things and injuries people.

1.2 Preliminaries

Only qualied personnel can operate on the unit, as required by the regulation in force.

1.3 Risk situations

The unit has been designed and created to prevent injures to people.

During designing it is not possible to plane and operate on all risk situation.

Read carefully“Residual risk”section where all situation which may cause damages to things and injuries to people are reported.

Installation, starting, maintenance and repair required specic knowledge; if they are carried out by inexperienced personnel, they may cause

damages to things and injuries people.

1.4 Intended use

Use the unit only:

for air-conditioning

Keep to the limits foreseen in the technical schedule and in this manual

The manufacturer accepts no responsibility if the equipment is used for any purpose other than the intended use.

1.5 Installation

The positioning, hydraulic system, refrigerating, electrics and the ducting of the air must be determined by the system designer in accordance

with local regulations in force.

Follow local safety regulations.

Verify that the electrical line characteristics are in compliance with data quotes on the unit serial number label.

1.6 Maintenance

Plan periodic inspection and maintenance in order to avoid or reduce repairing costs.

Turn the unit o before any operation.

1.7 Modication

All unit modications will end the warranty coverage and the manufacturer responsibility.

1.8 Breakdown/Malfuction

Disable the unit immediately in case of breakdown or malfunction.

Contact a certied service agent.

Use original spares parts only.

Using the unit in case of breakdown or malfunction:

•voids the warranty

•it may compromise the safety of the unit

•may increase time and repair costs

M09G60E14-04 MSAT-XEE 8.2-30.2 5

1.9 User training

The installer has to train the user on:

•Start-up/shutdown

•Set points change

•Standby mode

•Maintenance

•What to do / what not to do in case of breakdown

1.10 Data update

Continual product improvements may imply manual data changes.

Visit manufacturer web site for updated data.

1.11 Indications for the User

Keep this manual with the wiring diagram in an accessible place for the operator.

Note the unit data label so you can provide them to the assistance centre in case of intervention (see “Unit identication”section).

Provide a unit notebook that allows any interventions carried out on the unit to be noted and tracked making it easier to suitably note the

various interventions and aids the search for any breakdowns.

In case of breakdown or malfunction:

•Immediately deactivate the unit

•Contact a service centre authorized by the manufacturer

The installer must train the user, particularly on:

•Start-up/shutdown

•Set points change

•Standby mode

•Maintenance

•What to do / what not to do in case of breakdown

1.12 Unit indentication

The serial number label is positioned on the unit and allows to indentify all the unit features.

The matriculation plate must never be removed.

The matriculation plate shows the indications foreseen by the standards, in particular:

•unit type

•serial number (12 characters)

•year of manufacture

•wiring diagram number

•electrical data

•manufacturer logo and address

1.13 Serial number

It identies uniquely each unit.

Must be quoted when ordering spare parts.

1.14 Assistance request

Note data from the serial number label and write them in the chart on side, so you will nd them easily when needed.

Series

Size

Serial number

Year of manufacture

Electrical wiringdiagram

6 MSAT-XEE 8.2-30.2 M09G60E14-04

2 Reception

You have to check before accepting the delivery:

• That the unit hasn’t been damaged during transport

• That the materials delivered correspond with that indicated on the transport document comparing the data with the identication label

positioned on the packaging.

In case of damage or anomaly:

• Write down on the transport document the damage you found and quote this sentence: “Conditional acceptance clear evidence of

deciencies/damages during transport”

• Contact by fax and registered mail with advice of receipt to supplier and the carrier.

Any disputes must be made within 8 days from the date of the delivery. Complaints after this period are invalid.

2.1 Storage

Observe external packaging instructions.

2.2 Handling

1. Verify unit weight and handling equipment lifting capacity.

2. Identify critical points during handling (disconnected routes, ights, steps, doors).

3. Suitably protect the unit to prevent damage.

4. Insert safety pins (A) and split pins (B)

5. Lifting with balance

6. Lifting with spacer bar

7. Align the barycenter to the lifting point

8. Use all the lifting brackets (see the dimensional section)

9. Gradually bring the lifting belts under tension, making sure they are positioned correctly.

10. Before starting the handling, make sure that the unit is stable.

M09G60E14-04 MSAT-XEE 8.2-30.2 7

2.3 Packaging removing

Be careful not to damage the unit.

Keep packing material out of children’s reach it may be dangerous.

Recycle and dispose of the packaging material in conformity with local regulations.

8 MSAT-XEE 8.2-30.2 M09G60E14-04

3 Positioning

During positioning consider these elements:

•Technical spaces requested by the unit

•Electrical connections

•Water connections

•Spaces for air exhaust and intake

3.1 Functional spaces

Functional spaces are designed to:

•guarantee good unit operation

•carry out maintenance operations

•protect authorized operators and exposed people

Respect all functional spaces indicated in the DIMENSIONS section.

Double all functional spaces if two or more unit are aligned.

3.2 Positioning

Units are designed to be installed:

•EXTERNAL

•in xed positions

Limit vibration transmission:

•use antivibration devices on unit bearing points

Choose the installation place according to the following criteria:

•Customer approval

•safe accessible position

•technical spaces requested by the unit

•spaces for the air intake/exhaust

•Standard unit operating range at full load

•verify unit weight and bearing point capacity

•verify that all bearing points are aligned and leveled

•install the unit raised from the ground

•max. distance allowed by the electrical connections

Prefer places where the unit doesn’t disturb the neighbours.

Avoid installations next to bedrooms or windows.

Avoid snow accumulations on batteries.

A correct circulation of the air is mandatory to guarantee the good unit operating.

Avoid therefore:

•obstacles to the airow

•diculty of exchange

•leaves or other foreign bodies that can obstruct the air coil

•winds that hinder or favour the airow

•heat or pollution sources close to the unit (chimneys, extractors etc..)

•stratication (cold air that stagnates at the bottom)

•recirculation (expelled air that is sucked in again)

•incorrect positioning, close to very high walls, attics or in angles that could give rise to stratication or recirculation phenomenons

Ignoring the previous indications could:

•reduce energy eciency

•alarm lockout due to HIGH PRESSURE (in summer) or LOW PRESSURE (in winter)

3.3 Saftey valve gas side

The installer is responsible for evaluating the opportunity of installing drain tubes, in conformity with the local regulations in force (EN 378).

M09G60E14-04 MSAT-XEE 8.2-30.2 9

4 Refrigeranting connections

The sizing of the refrigerating connection lines is of extreme importance for the system operating and reliability.

The diameter of the connection between the two units is function of distances, dierences in level and curve number; it has so to be calculated

by a qualied technician.

Incorrect sizing may damage the compressor or aect cooling capacity.

The operations must be performed by an expert refrigerator technician

use only a copper pipe for chiller operating

pipes must not to be too much long and with too much curves

for a good eciency do not perform curves with a radium too much short and avoid the pipe crushing

to allow the vacuum and charge operations install service ttings on pipes (if the unit is not tted with taps with service ttings)

pipes must be perfectly clean (perform a cleaning with nitrogen or dry air before connecting the pipes to the two units) and without humidity

to allow a good vacuum operation

The installation of the pipes may aect the level of noise in the system:

•install exible joints between the unit and the pipes

•the pipe weight has not to weigh on units but it has to be sustained by anchorage brackets

•Brackets must allow the pipe thermal expansion

•Install antivibration material between the brackets and the pipes so as to prevent the transmission of vibrations

4.1 Shut-o valves

A. Shut-o valves

4.2 Risk of explosion

When you install cut-o devices (solenoid valves, taps, etc.), be aware that they may cause traps for refrigerant in the form of closed zones

upstream and downstream where the refrigerant cannot freely expand.

In this situation, if there is an increase in temperature (due to exposure to the sun, proximity of pipes or sources of heat), the expansion of the

trapped gas may cause the refrigeration pipes to explode.

Evaluate whether safety valves can be installed, especially in the liquid pipes that are most exposed to this risk.

10 MSAT-XEE 8.2-30.2 M09G60E14-04

4.3 Suction line

Slope this towards the compressor in the horizontal sections (0.5%) to ensure the return of oil to the compressor even under minimum load

conditions.

For vertical rises, as well as well the socket also t an oil collection trap every 6 metres.

Carefully insulate the pipe with anti-condensate, closed cell polyethylene, minimum thickness 9 mm.

4.4 Liquid line

The liquid line must be insulated if it is exposed to the sunlight or it crosses zones with a temperature higher than the external one, otherwise

it can be free.

Avoid excessive diameters to not cause an excessive refrigerant charge.

If the condensing unit is lower than the evaporating unit, install a drain trap of equal height to the exchanger coil, so as to prevent the return

of liquid to the compressor when the unit is o.

The solenoid valve avoids dangerous gas leaks when the unit is o; the installation is always recommended, above all with pipes particularly

long.

It has to be positioned near the thermostatic valve.

If the terminal unit is tted with a thermostat as well as a drain trap, install a socket as near as possible to the unit.

This will prevent the bulb of the thermostat from remaining in contact with the liquid when the unit is o.

A Suction line

B Liquid line

4.5 Liquid receiver

The liquid receiver installation is always recommended, above all when:

•the connecting pipes are longer than 10 metres

•the installation operates in variable climatic conditions (for example fresh air temperature with ranges day/night, summer/winter).

The receiver must have a capacity adequate to the installation and it must be positioned near the evaporating unit.

If the distance is greater than 15 metres and the compressor is located in the lower part of the system, position the receiver near the unit with

the compressor.

The liquid receiver can absolve the above described functions:

•it avoids the presence of gaseous freon in the expansion device

•it compensates for the charge variations in the installation when changing the operating conditions

•it avoids an excessive condenser ooding with consequent condensing temperature/pressure raising if the installation charge is

performed in anomalous climatic conditions.

Along with the previously mentioned aspects, the liquid recipient compensates for the various volumes of the exchangers as their function

changes (evaporator/condenser and vice versa).

Make very sure that the return and supply points are placed at the bottom.

4.6 Checking for leaks

1 Check carefully that the evaporator unit taps are closed.

2 Connect the pressure gauges with the service ttings (on the taps or on the connection pipes).

3 Pressurise the system with nitrogen:

mode 1: up to PS (see the label) and wait few hours

mode 2: up to PS x 1,43 law (as according to UNI-EN 378-2)

CAUTION: EXPLOSION DANGER

4 Spray using a leak detector spray taps and pipes and check if bubbles are present (gas leaks).

5 Discharge the nitrogen from the unit.

4.7 Vacuum operations

Make sure that all the service outlets are closed with proper caps; if caps are not present a leak of refrigerant can be possible.

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