CLIVET CKN-XHE2i 10.1 User manual

M06K40A18-00
08-05-18
CKN-XHE2i 7.1-14.2
Installation and
operating manual
High eciency“Roof Top”air cooled heat pump

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

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Index of contents
1General description
2Reception
3Positioning
4Water connections
5Aeraulic connections
6Electrical connections
7Start-up
8Control
9Maintenance
10 Accessories
11 Decommissioning
12 Residual risks
13 Technical information
4
6
9
13
14
15
20
26

4
5
54
5

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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:
• civil 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
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

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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

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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.

M06K40A18-00 CKN-XHE2i 7.1-14.2 7

8 CKN-XHE2i 7.1-14.2 M06K40A18-00
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.

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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
• 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 air 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)

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7
6
8
23
4
15
1 Positioning on concrete oor 5 Positioning on steel structure
2 2 cm thick neoprene strips 6 antivibration mounts
3 concrete oor 7 steel structure
4 insulation 8 steel structure
Avoid the accumulation of snow and ice in front of the exhaust air outlet
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 Condensate water
When a heat pump is running it produces a considerable amount of water due to the defrosting cycles of the external coil.
The condensate must be disposed in order to avoid damages to people and things.

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3.5 Congurations CBK, CCK
CUFFIA ARIA ESTERNA - EXTERNAL AIR HOOD
1 - APRIRE CUFFIA ARIA ESTERNA – All’interno ci sono le finiture DX e SX, rete AE + viti di fissaggio
1 – OPEN THE EXTERNAL AIR HOOD – Inside there are right and left parts, grid EA + fixing screws
2 - FISSARE LE FINITURE DX E SX - Esternamente e internamente, sugli appositi fori con le viti in dotazione.
2 – FIX RIGHT and LEFT PARTS - With screws supplied, on the appropriate holes internal and external side.
FISSAGGI ESTERNI - EXTERNAL FIXING FISSAGGI INTERNI - INTERNAL FIXING
Le pieghe in basso devono andare verso l’esterno della cuffia !
The folds on the bottom must be installed on the external side of the air hood !
Togliere viti e
staffa di fissaggio
Remove screws
and
mounting bracket

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3 - FISSARE LA RETE ARIA ESTERNA ( AE )- Sugli appositi fori con le viti in dotazione.
3 – FIX GRID EXTERNAL AIR ( EA )- With screws supplied, on the appropriate holes.
La piega deve andare verso l’esterno della cuffia
The fold must be installed on the external side of the air hood
3.6 Electronic lter
For details see:
10.1 Electronic ltersp.47
3.7 Gas module
For details see:
10.4 Modulating condensation gas heating modulep.51

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4 Water connections
4.1 Condensate drain
The condensate must be disposed in order to avoid damages to people and things.
• Unit discharge tting: the connection must not transmit mechanical stresses and must be performed taking care not to damage the unit
discharge tting.
• Provide a siphon that, eliminating the negative pressure caused by the fan, prevents the air intake from the discharge duct.
• The ducting must have a min. slope of 3% to allow the runo.
• Anchor the ducting with an adequate number of supports.
• Insulate the duct and the siphon to avoid the condensate drippings.
• Connect the condensate discharge to a sewerage drainage network.
DO NOT use white water or drainage networks to avoid the aspiration of odours in the case of evaporation of water contained in the siphon.
Check at the end of the work, the regular condensate runo pouring some water in the tray.
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 Humidier
For details see:
10.3 Immersed electrode humidierp.49

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5 Aeraulic connections
The dimensioning and correct execution of the aeraulic connections are fundamental to guarantee good unit operation and adequate level
of silence in the room.
When designing and manufacturing the ducting, consider LOAD LOSSES, AIR FLOW AND SPEED that must be consistent with the unit features.
Particularly consider that load losses higher than the unit useful prevalence, lead to reduction in ow rate, with consequent unit blocks.
• the weight of the channels must not burden on the connection anges
• place anti-vibration joints between channels and unit
• connection to the anges and between the various sections of the channels must guarantee air seal, avoiding dispersions penalising the
overall eciency of the system
• limit the load losses by optimising the path, the type and number of bends and junctions
• use wide bends evaluating the opportunity of equipping them with deectors (in particular with high air speed or bends with reduced
radius)
5.1 Treated air channelling
The internal surface of the channel must be smooth, enable its washing and must not contaminate the air.
Thermally isolate the channels and the anges to avoid energy losses and forming of condensation.
DIFFUSERS INLETS GRILLES
A correct diusion of the air in the room is determining for the level of comfort.
When choosing and positioning the grilles, inlets and diusers, avoid:
• excessive air speed
• forming of stagnant and stratication areas
• cold air delivery in room
• forming of localised currents (also due to uneven distribution of air)
• excessive room temperature variations, vertically and horizontally
• short circuits of the supply air towards the return air
For sound comfort, consider that:
• the air diusers must be chosen verifying the sound power generated at nominal ow rate conditions
• the cut-o to diusers must be carried out with exible elements
• the return grilles must be widely dimensioned
Thermally isolate the channels and the anges to avoid energy losses and forming of condensation.

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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. Respect the indicated phase sequence
7. 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).

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6.5 Connections performer by customer

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6.6 Remote ON-OFF
Do not perform short On O cycles
Do not use the remote On O with thermoregulation function.
A B
A B
YES NO !
B
AB
6.7 Wall mounted electronic room control
Before proceeding, make sure you have:
Name Quantity Notes
Controller 1 KJRH-120H/BMKO-E
Half-round Phillips head mounting screw 3 GB950-86 M4X20 For mounting on wall
Half-round Phillips head mounting screw 2 M4X25 GB823-88 For mounting on electrical junction box
Plastic bolt 2 To install the controller inside the switch box
Plastic expansion plug 3 For mounting on wall
Do not install in a place subject to ammable gas leaks. Once the ammable gases have leaked and spread around the controller, they could
trigger a re.
Do not place the controller near lamps, in order to prevent potential interferences with the controller signal
Do not install the unit in a place subject to excessive amounts of oil, vapour, sulphide gases. Exposure to these substances may cause the
product to deform and stop working.
The wiring must be suited to the controller’s current rating. If not, electrical dispersions or overheating may occur, which could trigger a re.
The controller operates with a low-voltage circuit. Never connect it to a standard 220 V/380 V circuit or insert it through the same cable
grommet of the circuit.
The shielded cable must be stably grounded, or the transmission might fail.
After making the connections, do not use the insulation tester to check the signal cable’s insulation.
Do not apply any external force on the terminal. This may cause the wires to break or overheating, which could trigger a re.

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Take a slotted-head screwdriver and insert it into the recess on the lower part of the controller, then turn the screwdriver to lower the back
cover. (Pay attention to the rotation direction, or the back cover may get damaged!)
Use three GB950-86 M4X20 screws to install the back cover directly onto the wall.
Use two GB823-88 M4X25 screws to install the back cover in the electrical junction box 86 and use one GB950-86 M4X20 screw to install it
directly onto the wall.
Adjust the length of the two plastic plugs to the standard distance from the threaded bar of the wall-mounted switch box.When inserting the
plastic plugs into the wall, make sure that the lie ush with the wall.
Use Phillips-head screws to fasten the back cover of the controller to the wall using the plastic plug. Make sure that the back cover of the
controller lies at the same level after installation and mount the controller back onto the rear cover.
Install the back cover correctly and securely fasten both the front and back covers, otherwise the front cover could fall.

M06K40A18-00 CKN-XHE2i 7.1-14.2 19
Make sure that no water penetrates inside the controller; use mastic and other contraptions to seal the cable connectors during installation.
Adjust the front cover then fasten it; avoid blocking the cables during installation.
The sensor must not be subject to humidity.

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7 Start-up
7.1 General description
The indicated operations should be done by qualied technician with specic training on the product.
Upon request, the service centres performing the start-up.
The electrical, water connections and the other system works are by the installer.
Agree upon in advance the star-up data with the service centre.
Before checking, please verify the following:
•the unit should be installed properly and in conformity with this manual
•the electrical power supply line should be isolated at the beginning
•the unit isolator is open, locked and equipped with the suitable warning
•make sure no tension is present
After turning o the power, wait at least 5 minutes before accessing to the electrical panel or any other electrical component.
Before accessing check with a multimeter that there are no residual stresses.
7.2 Preliminary checks
For details refer to the dierent manual sections.
Unit OFF power supply
1. safety access
2. functional spaces
3. air ow: correct return and supply (no bypass, no stratication)
4. structure integrity
5. fans run freely
6. unit on vibration isolators
7. air lters present and clean
8. completed aeraulic system
9. refrigerant circuit visual check
10. earthing connection
11. power supply features
12. electrical connections provided by the customer
7.3 Start-up sequence
For details refer to the dierent manual sections.
Unit ON power supply
1. the compressor crankcase heating elements have been running for at least 12 hours
2. o-load voltage measure
3. phase sequence check
4. shut-o valve refrigerant circuit open
5. unit ON
6. load voltage measure and absorptions
7. check all fan operating
8. check air ow on outer coil (no by-pass, no stratication)
9. air ow rate measurement
10. supply, return and outdoor air temperature measurement
11. measure super-heating and sub-cooling
12. check no anomalous vibrations are present
13. climatic curve personalization
14. climatic curve personalization
15. scheduling personalization
16. re alarm conguration *
17. complete and available unit documentation
* only if present