CLIVET MSRT-XSC3 User manual

M04W40N16-02 11-12-19

Installation and

operating manual

Air-cooled liquid chiller in two sections

MSRT-XSC3 + CEV-XT 90.4-240.4

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

M04W40N16-02 MSRT-XSC3 + CEV-XT 90.4-240.4 3

Index of contents

1 General description 4

2 Reception 6

3 Positioning 8

4 Water connections 10

5 Refrigeranting connections 14

6 Electrical connections 18

7 Start-up 26

8 Control 35

9 Maintenance 47

10 Accessories 53

11 Decommissioning 55

12 Residual risks 56

General technical date 57

Dimensional drawings 69

4 MSRT-XSC3 + CEV-XT 90.4-240.4 M04W40N16-02

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 cooling/heating water or a water and glycol mix

• 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

Outdoor 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

M04W40N16-02 MSRT-XSC3 + CEV-XT 90.4-240.4 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 shows the indications foreseen by the standards, in particular:

• unit type

• serial number (12 characters)

• year of manufacture

• wiring diagram number

• electrical data

• type of refrigerant

• refrigerant charge

• manufacturer logo and address

The matriculation plate must never be removed.

It contains uorinated greenhouse gases

Type of refrigerant: R410A

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 MSRT-XSC3 + CEV-XT 90.4-240.4 M04W40N16-02

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. lifting brackets

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.

M04W40N16-02 MSRT-XSC3 + CEV-XT 90.4-240.4 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.

A Supports for handling: remove after the handling.

B Remove the coil protective mesh before the start-up

8 MSRT-XSC3 + CEV-XT 90.4-240.4 M04W40N16-02

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 anti-vibration devices or neoprene strips on the unit support points

• install exible joints on the hydraulic connections

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

• max. distance allowed by the electrical connections

• install the unit raised from the ground

• verify unit weight and bearing point capacity

• verify that all bearing points are aligned and leveled

• condensate water draining

• consider the maximum possible snow level

• Avoid installations in places subject to ooding

Protect the unit with suitable fence in order to avoid access to unauthorised personnel (children, vandals, etc.)

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).

M04W40N16-02 MSRT-XSC3 + CEV-XT 90.4-240.4 9

3.4 AxiTop

3.5 Functional spaces

1500

800

1500

800 800

1200 1200

A full height wall: standard compliance spaces

B low height wall: reduced space

3.6 Anti-vibration mount support

For details see:

10 Accessoriesp.53

10 MSRT-XSC3 + CEV-XT 90.4-240.4 M04W40N16-02

4 Water connections

4.1 Water quality

Water features

• conrming to local regulations

• total hardness < 14°fr

• within the limits indicated by table

The water quality must be checked by qualied personnel.

Water with inadequate characteristics can cause:

• pressure drop increase

• reduces energy eciency

• increased corrosion potential

Acceptable water quality values:

42-

HCO

/SO

42-

Total Hardness

43-

< 100

> 1

4,5 ÷8,5

< 50

< 2,0

NH3< 0,5

PH 7,5 ÷9,0

ppm

Temperature

< 0,5

< 0,05

< 50

< 65

Oxygen content < 0,1

Free Chlorine < 0,5

ppm

ppb

°C

ppm

Provide a water treatment system if values fall outside the limits.

The warranty does not cover damages caused by limestone formations, deposits and impurities from the water supply and / or failure from

failed system clearing to clean system.

4.2 Risk of freezing

If the unit or the relative water connections are subject to temperatures close to 0°C:

• mix water with glycol, or

• safeguard the pipes with heating cables placed under the insulation, or

• empty the system in cases of long non-use

4.3 Anti-freeze solution

The use of an anti-freeze solution results in an increase in pressure drop.

Make sure that the glycol type utilized is inhibited (not corrosive) and compatible with the water circuit components.

Do not use dierent glicol mixture (i.e. ethylene with propylene).

4.4 Water ow-rate

The project water-ow must be:

• within exchanger operating range

• guarantee, also with variable system conditions (for example in systems where some circuits are bypassed in particular situations).

4.5 Minimum system water content

Minimum system water volumes have to be satised to avoid continuous compressor switching on and o.

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