CLIVET MSE-SC 65D User manual

M43X41C6-03 15-07-16
MSE-SC 65D - 180F
Installation and
operating manual
Condenserless water chiller for outdoor or indoor installation

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

M43X41C6-03 MSE-SC 65D-180F 3
Index of contents
1 General description 4
2 Reception 6
3 Positioning 8
4 Water connections 9
5 Refrigeranting connections 11
6 Electrical connections 15
7 Start-up 22
8 Control 25
9 Maintenance 31
10 Decommissioning 34
11 Residual risks 35
12 Accessories 36
13 Dimensional drawings 38
14 Technical information 42

4 MSE-SC 65D-180F M43X41C6-03
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:
• cooling water or a water and glycol mix 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

M43X41C6-03 MSE-SC 65D-180F 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 MSE-SC 65D-180F M43X41C6-03
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 bracket
5. Screw pin shackle.
6. Safety pin shackle.
7. Before starting the handling, make sure that the unit is stable.
8. Gradually bring the lifting belts under tension, making sure they are positioned correctly.
A. Protections
B. Lifting bracket

M43X41C6-03 MSE-SC 65D-180F 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 MSE-SC 65D-180F M43X41C6-03
3 Positioning
During positioning consider these elements:
• Technical spaces requested by the unit
• Electrical connections
• Water connections
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:
• INTERNAL / EXTERNAL
• in xed positions
Limit vibration transmission:
• use antivibration devices on unit bearing points
• install exible joints on the hydraulic connections
Choose the installation place according to the following criteria:
• safe accessible position
• 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
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).
3.4 Fresh air probe
The external probe allows to automatically change the unit set point according to the external enthalpy (temperature + humidity).
It is then possible to optimize the unit energy eciency.
Positioning
The sensor has not to be inuenced by factors that can false the reading (for ex. direct solar irradiation, exhaust air by fan or other sources,
contact with the unit structure or other sources of heat, accumulations of snow/ice), it has therefore to be placed in a protected place (possibly
to the north), for example in an attic, under a terrace and if it is on a free wall, provide a small roong.
Examples to position the external probe:
A. roof
B. under a terrace
C. if at free wall provide a small roong

M43X41C6-03 MSE-SC 65D-180F 9
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:
SO
42-
HCO
3-
/SO
42-
Total Hardness
Cl
-
PO
43-
< 100
> 1
4,5 ÷8,5
< 50
< 2,0
NH3 < 0,5
PH 7,5 ÷9,0
ppm
dH
ppm
ppm
ppm
Fe
3+
Mn
++
CO
2
H
2
S
Temperature
< 0,5
< 0,05
< 50
< 50
< 65
Oxygen content < 0,1
Free Chlorine < 0,5
ppm
ppm
ppb
°C
ppm
ppm
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:
• inside the exchanger operating limits (see the TECHNICAL INFORMATION section)
• guarantee, also with variable system conditions (for example in systems where some circuits are bypassed in particular situations).
4.5 Hydraulic connections
• take away the supplied connection union by acting on the connection joint
• weld the union to the installation pipe
• perform the connection between the installation pipe and the evaporator, using the joint
Retirer le joint de connexion avant de souder le tuyau de l’installation.
The rubber gasket might be irreparably damaged.

10 MSE-SC 65D-180F M43X41C6-03
4.6 Water lter
It must be installed immediately in the water input of the unit, in a position that is easily accessible for cleaning.
The lter never should be removed, this operation invalidates the guaranty.
4.7 Recommended connection
The installer must dene:
• component type
• position in system
1 antivibration joints 10 Flow Switch
2 piping support 11 pressure gauge
3 exchanger chemical cleaning bypass 12 thermometer
4 shut-o valve 13 shut-o valve
5 pressure switch of the charged system 14 lter
6 vent 15 lling valve
7 Pump / circulating pump 16 shut-o valve
8 expansion vessel 17 Internal storage tank
9 safety valve 18 Cleaning system bypass
4.8 Operation sequence
Close all vent valves in the high points of the unit hydraulic circuit
Close all drain valves in the low points of the unit hydraulic circuit:
• Heat exchangers
• Pumps
• collectors
• storage tank
• free-cooling coil
1. Carefully wash the system with clean water: ll and drain the system several times.
2. Apply additives to prevent corrosion, fouling, formation of mud and algae.
3. Fill the plant
4. Execute leakage test.
5. Isolate the pipes to avoid heat dispersions and formation of condensate.
6. Leave various point of service free (wells, vent-holes etc).
Neglecting the washing will lead to several lter cleaning interventions and at worst cases can cause damages to the exchangers and the
other parts.

M43X41C6-03 MSE-SC 65D-180F 11
5 Refrigeranting connections
5.1 Pressure Equipment Directive
This unit is a subset: to operate it has to be combined to another unit.
It is an installer responsability:
• follow the PED Directive and to the national regulations of PED Directive realization
• consider the insertion of any additional security devices
• check the safety device operation
• write on the serial label number the amount of total refrigerant
• issue the Declaration of conformity
• inform the user of the need to carry out regular checks
5.2 Vibrations / Noise
The installation of the pipes may aect the level of noise in the system:
• install exible joints between the unit and the pipes
• install antivibration material between the brackets and the pipes so as to prevent the transmission of vibrations
• avoid the passage in particularly silent environments

12 MSE-SC 65D-180F M43X41C6-03
5.3 General description
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 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
• 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)
5.4 Risk of explosion
When you install cut-o devices (solenoid valves, cocks, 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.
5.5 Supply line
Insulate only if you want to prevent burns due to accidental contact.
5.6 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.
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.
5.7 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.

M43X41C6-03 MSE-SC 65D-180F 13
A. antivibration mount
B. siphon
C. check valve
D. liquid receiver
E. solenoid valve
5.8 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 cocks and pipes and check if bubbles are present (gas leaks).
5 Discharge the nitrogen from the unit.
5.9 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.
With the cocks of the motor condenser closed, drain the system.
Using a gauge group, connect the vacuum pump on both connections of the cocks, make sure that the solenoid valve or any intermediate
cocks are open, proceed with the vacuum.
Stop the pump at a pressure of about 100 Pa and leave it under vacuum for a few hours; a slight initial rise of pressure is normal, followed by
stabilization.
If the pressure continues to rise, it means there are either small leaks or humidity is present. In the rst case, repeat the operations in the
paragraph on checking for leaks in the manual for the refrigerant pipes.
In the second case, recharge the system with refrigerant gas up to 100KPa and re-create the vacuum as described above.
Once the pressure is permanently stable, move on to the next phase, which is charging.
5.10 Refrigerant charge
Check the type of refrigerant on the serial number label
The refrigerant charge must to be completed during the start-up phase, based on the type of indoor unit and on the pipe development.
With the system under vacuum, close the cocks of the gauge group and disconnect the vacuum pump.
Connect the refrigerant gas tank, venting the air out of the hose for connection to the gauge group.
Open the cock of the liquid line.
Open the cocks of the gauge group and let liquid-state refrigerant enter using an appropriate pump.
Once charging is complete, open the gas cock so that the unit is ready to be started.
5.11 Adding oil
Consider adding oil if the connection pipes are particularly long.
Check the oil level of the compressor in the indicator or in the Schrader plug.

14 MSE-SC 65D-180F M43X41C6-03
5.12 Weight of refrigerant uid
This table provides an estimate of that makes it possible to determine in advance how much gas will be needed.
The optimal refrigerant charge must be determined with the unit at normal operating power, in conditions that are near design conditions,
measuring and adjusting excessive heating or cooling.
The table does not take into account various thicknesses of pipes, it refers to a unit in operation (Tev = 5°C, Tcond = 45°C).
It is necessary to add to the indicated quantities the amounts required for the two units and for the gas pipes.
ext diameter mm 28 35 42 54 64 76 88.9
R-134a 6.0 9.5 13.6 22.3 32.1 46.3 64.4
R-407C 5.7 9.0 12.9 21.2 30.6 44.0 61.2

M43X41C6-03 MSE-SC 65D-180F 15
6 Electrical connections
The characteristics of the electrical lines must be determined by qualied electrica personnel able to design electrical installations; moreover,
the lines must be in conformity with regulations in force.
The protection devices of the unit power line must be able to stop all short circuit current, the value must be determined in accordance with
system features.
The power cables and the protection cable section must be dened in accordance with the characteristics of the protections adopted.
All electrical operations should be performed by trained personnel having the necessary qualications required by the regulations in force
and being informed about the risks relevant to these activities.
Operate in compliance with safety regulations in force.
6.1 Electrical data
The serial number label reports the unit specic electrical data, included any electrical accessories.
The electrical data indicated in the technical bulletin and in the manual refer to the standard unit, accessories excluded.
The matriculation plate shows the indications foreseen by the standards, in particular:
• Voltage
• F.L.A.: full load ampere, absorbed current at maximum admitted conditions
• F.L.I.: full load input, full load power input at max. admissible condition
• Electrical wiringdiagram Nr.
6.2 Connections
1. Refer to the unit electrical diagram (the number of the diagram is shown on the serial number label).
2. Verify that the electrical supply has characteristics conforming to the data shown on the serial number label.
3. Before starting work, ensure the unit is isolated, unable to be turned on and a safety sign used.
4. Ensure correct earth connection.
5. Ensure cables are suitably protected.
6. Before powering up the unit, make sure that all the protections that were removed during the electrical connection work have been
restored.
6.3 Signals / data lines
Do not exceed the maximum power allowed, which varies, according to the type of signal.
Lay the cables far from power cables or cables having a dierent tension and that are able to emit electromagnetic disturbances.
Do not lay the cable near devices which can generate electromagnetic interferences.
Do not lay the cables parallel to other cables, cable crossings are possible, only if laid at 90°.
Connect the screen to the ground, only if there aren’t disturbances.
Guarantee the continuity of the screen during the entire extension of the cable.
Respect impendency, capacity and attenuation indications.
6.4 Power input
Fix the cables: if vacated may be subject to tearing.
The cable must not touch the compressor and the refrigerant piping (they reach high temparatures).
XC: Customer connections
QS1: main isolator switch
6.5 Electrical panel
External unit

16 MSE-SC 65D-180F M43X41C6-03
AP7 Main control module FU10 230V aux. circuit fuse
AP8 Compressor control module KA2 Auxiliary relays
AP9 Compressor control module KA3 Auxiliary relays
AP10 Pumps management module utility side KM1-2-3
KM4-5-6
Compressor contactor
AP14 Phase monitor KM31...33 Utility side pump control
AP25 CAN TO CAN converter module QM1...6 Compressor thermal magnetic circuit breaker
AP26 Gateway LonWorks QM8 Auxiliary circuit thermal magnetic circuit breaker
AP27 CAN TO MODBUS converter module QM31...33 Pump motor overload cutout
AP28 DATALOGGER module QS1 Main isolator switch
AP50 Storage battery ST10 High temperature safety thermostat
AP51 / 52 Electronic thermostatic management T1 Auxiliary circuit transformer
FU8 12V aux. circuit fuse XC Terminal block of the customer connections
FU9 24V aux. circuit fuse
Internal unit

M43X41C6-03 MSE-SC 65D-180F 17
AP7 Main control module FU10 230V aux. circuit fuse
AP8 Compressor control module KA2 Auxiliary relays
AP9 Compressor control module KA3 Auxiliary relays
AP10 Pumps management module utility side KM1-2-3
KM4-5-6
Compressor contactor
AP14 Phase monitor KM31...33 Utility side pump control
AP25 CAN TO CAN converter module QM1...6 Compressor thermal magnetic circuit breaker
AP26 Gateway LonWorks QM8 Auxiliary circuit thermal magnetic circuit breaker
AP27 CAN TO MODBUS converter module QM31...33 Pump motor overload cutout
AP28 DATALOGGER module QS1 Main isolator switch
AP50 Storage battery ST10 High temperature safety thermostat
AP51 / 52 Electronic thermostatic management T1 Auxiliary circuit transformer
FU8 12V aux. circuit fuse XC Terminal block of the customer connections
FU9 24V aux. circuit fuse

18 MSE-SC 65D-180F M43X41C6-03
6.6 Connections performer by customer
ALM cumulative fault signal SA1 remote on/o
AP21 remote condenser control module 0..10V SA1.1 second setpoint
AP22 remote condenser control module 0..10V SQ1 utility side exchanger ow switch
FRC1-2 Remote condenser fan thermal overload SQ2.1 owswitch remote exchanger
HL1.....6 compressor status signal SQ2.2 owswitch remote exchanger
KMC1-2 remote condenser on-o control module
KMPU Utility side pump control
6.7 Remote ON-OFF
Do not perform short On O cycles
Do not use the remote On O with thermoregulation function.
A B
AB
YES NO !
B
AB

M43X41C6-03 MSE-SC 65D-180F 19
6.8 DEMAND LIMIT and WATER RESET
AP18 Demand limit A devices powered by the signal
AP19 Water reset B devices with own power supply
AP20 ambient humidity control probe C passive devices powered by the module (max 50mA)
BT7 ambient air temperature probe

20 MSE-SC 65D-180F M43X41C6-03
6.9 Communication
AP13 remote interface AP27 Can to Modbus RS485
AP25 Can to Can AP28 Datalogger
AP26 Gateway LonWorks
Cable “A” requirements
Couple of conductors twisted and shielded
Section of conductor 0,22mm2…0,35mm2
Nominal capacity between conductors < 50 pF/m
Nominal impedance 120 Ω
Recommended cable BELDEN 3105A