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CF 182
Installation And Use Manual
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CLIVET CF 202, CF 182, CF 162, CF 242 Installation And Use Manual

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CF
91-121-142-162-182-202-242
DUCTABLE HORIZONTAL RECESSED WATER TERMINAL UNIT
Installation and Use Manual
M42740M4-02 25/09/08
UNIT IDENTIFICATION........................................................................... 4
GENERAL WARNINGS ............................................................................ 5
RESIDUAL RISKS ................................................................................. 6
RECEPTION......................................................................................... 7
POSITIONING ...................................................................................... 8
WATER CONNECTIONS .......................................................................... 9
AIR CONNECTIONS ..............................................................................10
ELECTRICAL CONNECTION ...................................................................11
START-UP..........................................................................................17
CONTROL ..........................................................................................19
ROUTINE MAINTENANCE.......................................................................29
SERVICES : PARTS SUBJECT TO INTERVENTION ......................................29
TROUBLESHOOTING ............................................................................32
DECOMMISSIONING OF THE UNIT ...........................................................32
GENERAL TECHNICAL SPECIFICATIONS ..................................................33
DIMENSIONS ......................................................................................35
UNIT IDENTIFICATION
SERIAL NUMBER LABEL
The units are identified by the serial number label shown here.
The label lists the type of unit (series and size), serial number, year of manufacture, number of electrical diagram, main technical data, logo and address of the manufacturer.
The label is placed on the unit, generally near the electrical panel and also on the external panelling.
IT MUST NEVER BE REMOVED.
SERIAL NUMBER
This provides unique identification of the machine. It makes it possible to trace the specific features of the unit and to identify the components installed in it.
Without this number, it is not possible to identify with certainty the spare parts that are specific to that unit.
When requesting assistance, always provide the type of machine and the serial number.
Write them in the space below so that they are readily available when needed.
Type of unit : _________________________________
Serial number : _________________________________
Wiring diagram : __________________________
Year of manufacture : ___________________________
COMMON CAUSES OF SHUTDOWN
air filter dirty water filter dirty external permissions (remote ON-OFF etc. ) water cut-off valves closed
M42740M4-02 02/10/08 page 4
GENERAL WARNINGS
MANUAL PURPOSE
This manual has been designed to enable the unit to be installed, started up and maintained correctly.
MANUAL INSTRUCTIONS
It is essential to observe these instructions. The manufacturer declines all liability for any damage that may be caused whether directly or indirectly to persons or things if these instructions are not heeded.
MANUAL STORAGE
This manual and the unit’s wiring diagram should be carefully stored so that they are readily available to the operator when required.
EXPERT PERSONAL
The unit must be installed, tested and maintained by expert personal who meet the relevant legal requirements (Italian law No. 46 of 5/3/1990).
LOCAL SAFET REGULATION INSTALLATION
The installation must be performed observing the local safety regulations.
POWER SUPPLY
Make sure the power supply conforms to the data on the unit’s rating plate, located inside the door of the main electrical panel.
PACKAGING
The packaging material (plastic bags, polystyrene foam, nails, etc.) is potentially dangerous and should therefore be kept away from children and recycled in compliance with the local regulations in force.
MAINTENANCE
Before performing any service operations, cut off the power. Perform the operations in conformity with the local regulations in force.
PERIODICAL INSPECTIONS
Perform periodical inspections to locate possible loosened or broken parts. If the repairs are not performed, there will be a higher risk for things and peoples to become damaged and injured.
FAULT – POOR OPERATION
Switch off the unit in the event of faults or poor operation.
REPAIR
Only have repairs carried out by a service centre authorised by the manufacturer, and insist on the use of original spare parts only. Failure to comply with the above may compromise the safety of the unit.
MODIFICATIONS
The manufacturer will not accept any responsibility, and the warranty will lapse, in the event of electric and/or mechanical modifications. Any modification which is not formally authorized, and which does not respect the instructions given in this manual, will cause the warranty to lapse.
INTENDED USE
The unit must only be used for the specific purpose it was designed :
The unit is designed for civil air-conditioning within the limits defined in the technical bulletin and this manual.
Any use other than that specified does not imply any commitment or constraint by the manufacturer in any way whatsoever.
ADDITIONAL SAFETY PRECAUTIONS
This unit has been especially designed and manufactured so to prevent any risk to persons and health hazard. For this reason, design solutions fit to eliminate (where possible) any cause of risk and sensibly reduce the probability of danger have been adopted. Please refer to the "Residual Risks" section of this manual and strictly observe the behaviour prescriptions listed there in order to prevent any possible risk that hasn’t been possible to avoid in the design stage.
DATA UPDATING
The manufacturer may be able to modify the data without prior notice as a consequence of constant improvements.
REGULA TIONS AND CERTIFICATIONS
UNI EN ISO 9001 CERTIFICATION
Clivet S.p.A., in order to guarantee customer satisfaction, has chosen the ISO 9001 Quality System as the reference for all its business activities. This is demonstrated by the company’s commitment to ongoing improvements in the quality and reliability of its products; its sales, design, purchasing, production and after-sales service activities are the means used to reach such purpose.
CE MARK
Clivet products bear the CE mark, in compliance with the requirements of the following EC directives, including the latest amendments, and with the corresponding national approximated legislation:
• 98/37/CE
• 89/336/CEE as modified by the directives 92/31/CEE and
93/68/CEE
• 73/23/CEE as modified by the directive 93/68/CEE
• 97/23/CE
M42740M4-02 02/10/08 page 5
RESIDUAL RISKS
GENERAL
This section lists some of the more common situations which, being beyond the control of the manufacturer, could be a source of risk to persons or property.
DANGER AREA
The figure below highlights the area in which only authorised personnel may operate.
• External danger zone, identified by a precise area
around the unit and its vertical projection on the ground in the case of hanging unit.
• Internal danger zone, identified by the area that can
be entered only after having intentionally removed the protecting panels or parts of these.
HANDLING
If handling operations are undertaken without adopting all the necessary safety procedures and exercising due care, the unit can fall or topple, causing damage — possibly extremely serious — to persons and/or property, and to the unit itself. Ensure the unit is handled and manoeuvred as directed on the packing and in the present manual, and in accordance with local regulations. In the event of refrigerant gas escaping, refer to the “Safety datasheet” for the particular refrigerant.
INSTALLATION
Incorrect installation of the unit can result in water leaks, accumulation of condensate, escape of refrigerant, electric shocks, fire, as well as irregular operation or damage to the unit itself. Make certain that the installation is carried out only by a qualified technician, also that the directions contained in this manual are followed and local statutory regulations observed. In the event of the unit being installed in a site where there is even the slightest risk of inflammable gas escapes and consequently the possibility of such gases accumulating in area around the unit, the risk of explosion and fire cannot be discounted. Take every care and precaution when selecting the installation site. Installation on a structure not able to bear the weight and/or afford a secure anchorage of the equipment may cause the unit to fall and/or topple, resulting in damage to persons or property, or to the unit itself. Make certain that every care and precaution is taken when positioning and securing the unit. If the unit is easily accessible to children, unauthorized persons or animals, this is a situation that can give rise accidents and injuries, perhaps serious. Install the unit in a place where access is allowed only to authorized persons, or install barriers or guards preventing unauthorized entry.
GENERAL RISKS
A smell of burning, smoke or other indications of serious irregularity could signal the onset of situations liable to cause damage to persons or property or to the unit itself. Isolate the unit from the electrical power supply (red-and­yellow) switch. Contact an authorized service centre so that the source of the problem can be identified and remedied. Accidental contact with heat exchange coils, compressors, pressure pipelines or other components can result in wounding or burns, or both. Always wear suitable clothing, including protective gloves, when working in the danger area.
Maintenance or repairs carried out by unskilled operatives can result in harm or damage to persons and property, or to the unit itself. Always contact an authorized service centre. Failure to close the panels of the unit, or to check that all the fixing screws of the panels are properly tightened, can result in harm or damage to persons or property, or to the unit itself. Verify periodically that all panels are closed and made properly secure. In the event of fire, the temperature of the refrigerant can rise to the point that pressure will exceed safety levels and perhaps cause fluid to be projected. It may also happen that parts of the circuit isolated by closed valves will explode. Do not stand near safety valves, and never leave the valves of the refrigerant circuit closed.
ELECTRICAL SYSTEM
If the power line connecting the unit to the a.c. supply is incomplete, or if the connection is made with cables of incorrect cross section and/or with insufficiently rated protective devices, this can result in electric shock, toxicity hazard, damage to the unit or fire. All work on the electrical system should be carried out referring to the wiring diagram and to the directions given in this manual, and the system itself must be dedicated. Failure to secure the cover enclosing electrical components can lead to the infiltration of dust and water, ultimately causing electric shocks, damage to the unit, or fire. Always fasten the cover securely to the unit. If live metal parts of the unit are not connected properly to the earth system, they can cause electric shock or even death by electrocution. Make absolutely certain that the connection to the earth system is made in accordance with correct practice. Contact with live parts rendered accessible internally of the unit when the guards are removed can result in electric shock, burns or death by electrocution. Before exposing these parts, make certain the isolating switch on the power line to the unit is set to the OFF position and padlocked, and post a warning sign. Contact with parts that could become live when the unit is started up can result in electric shock, burns or death by electrocution. When there is no need for circuits to be powered up, set the isolating switch on the power line to the OFF position, padlock it and post a warning sign.
MOVING PARTS
Contact with the fan rotors can cause injury. Before removing the protective grilles or the fans themselves, make certain the isolating switch on the power line to the unit is set to the OFF position and padlocked, and post a warning sign. Before removing the protective grilles or the fans themselves, make certain the isolating switch on the power line to the unit is set to the OFF position and padlocked, and post a warning sign.
WATER SYSTEM
Defects affecting pipelines, connections or valves and other control componentry can result in water being leaked or sprayed from the system, occasioning damage to property or causing short circuits in the unit. Make certain all hydraulic connections are securely made, following the directions given in the present manual.
M42740M4-02 02/10/08 page 6
RECEPTION
INSPECTION UPON RECEPTION
Check on arrival that the unit has not suffered damage during transit and that it is complete in every part as specified in the order. In the event of visible damage/deficiencies being discovered, make a note immediately on the delivery document with the comment: CONDITIONAL ACCEPTANCE — CLEAR EVIDENCE OF DEFICIENCIES/DAMAGE DURING TRANSIT
Inform both the supplier and the carrier of the details by fax and by registered mail with advice of receipt not later than 8 days after taking consignment. Notifications sent after 8 days have elapsed will be ignored.
STORAGE
Shelter from: direct sunlight, rain, sand and wind Temperature: maximum 60°C minimum -10°C Maximum humidity: 90% The respect of the instructions on the exterior side of the
packaging assures the physical and functional integrity of the unit for the final user’s advantage.
It is recommended to:
• Handle carefully
• Keep in a dry place
• Avoid putting other objects on top of the unit (respect
the limits of levels of superimposition shown in the package)
• Avoid placing the unit with thermoretractable protection under the sun since the pressure of the circuits can assume values which activate the safety valves.
LABELS / YELLOW BRACKETS SHOW THE LIFTING POINTS
HANDLING
The operation of handling the unit must be carried out respecting the instructions of the safety norms in force (Legislative Decree 626/94 and following modifications)
Before starting the handling operations:
• Value the critical points during handling (stairs, flights, disconnected routes, doors, etc)
• Verify that the lifting capacity of the means used is adequate to the unit weight
• Consider that the barycentre could be moved with respect to the center of the unit
• Before starting to lift, verify that the unit is at a stable balance
The following examples are indications; the choice of the means and of the handling modes will depend on factors, such as:
• The unit weight
• Type and overall dimensions of the unit
• Place and route for the handling (dirt yard, asphalted
square, etc)
• Condition of the place of destination (roof, square, etc)
• Handling distance characteristics (distances, flights,
steps, doors)
DO NOT LEAVE THE PACKAGES LOOSE DO NOT MOVE THE UNITS ALONE
FOR SEVERAL UNITS, USE A SUITABLE
CONTAINER
REMOVING THE PACKING
For removing the packaging, use specific personal protection for the operator (gloves, glasses, etc.).
While removing the packaging, pay attention not to damage the unit.
M42740M4-02 02/10/08 page 7
Check for any visible damage.
Dispose of the packaging by taking it to specialist collection or recycling centres in accordance with local regulations.
POSITIONING
GENERAL
For installing air-conditioning systems, it is necessary to consider the following:
• the technical spaces necessary for the machine and system
• the place where the machine will be installed
• the transport of thermal carrier fluids and relevant
connections to the unit:
o water o air
If these aspects are not evaluated carefully, they can affect the performances and the working life of the unit.
FUNCTIONAL CLEARANCES
When placing the unit, please respect the functional clearances indicated in DIMENSIONS section. The functional spaces need to be observed because of the following:
• to guarantee the good operation of the unit
• to allow the performance of all maintenance operations
• to protect the authorized operators and exposed people
If more units are placed close to one another, the functional spaces must be doubled.
1
2
POSITIONING
1. The units are designed for INDOOR installations,
performed in fixed positions and in areas accessible only to qualified and authorized personnel
2. SAFETY VALVE (only if present on the unit) : the
installer is responsible for evaluating the opportunity of installing drain tubes, in conformity with the local regulations in force ( EN 378 )
3. Install the unit raised from the ground
4. avoid installations in places subject to flooding
5. It is recommended to put the unit on specific
antivibration devices
6. In the false ceiling, provide the indicated openings in
the functional spaces so as to allow access to the unit
for maintenance.
7. Leave free the surface projection of the unit and the
functional spaces so as to allow access with ladders
or other means.
(1) OUTLET SIDE VIEW
(SIZES 81-91-101-121)
(A) PANEL FOR MOTOR AND FAN
INSPECTION (B) AIR FILTER (C) ACCESS TRAP DOOR
(2) VIEW FROM THE TOP
(SIZES 81-91-101-121) (D) PANEL FOR MOTOR AND FAN
INSPECTION
3
500
500
500
500
500
500
(E) PANEL FOR THERMOSTATIC
VALVE INSPECTION (F) ELECTRICAL PANEL
(3) 3/4 FRONT VIEW
(SIZES 142-162-182-202-242)
M42740M4-02 02/10/08 page 8
WATER CONNECTIONS
GENERAL
Piping must be designed with the least possible number of bends and head variations. If the pressure chute of the installation is above the useful prevalence of the pump, the water delivery capacity is reduced as well as, as a consequence, the thermal exchange and the yield.
INTERCEPTING VALVES
Install on the input and output of the user parts (exchangers, coils, humidifiers, etc) So that it will be possible to carry out all the service operations and possible substitutions without emptying the installation.
PRESSURE AND TEMPERATURE INDICATOR
Install on the input and output of the user parts (exchangers, coils, humidifiers, etc) So that it will be possible to carry out all the service operations.
AUTOMATIC OR MANUAL ESCAPE VALVES
Install the highest points of tubes in a way that the air can escape form the circuit.
BLEEDING COCK
Install them at the lowest points of the circuit, so as to allow emptying.
LEAKAGE TESTS
Before performing the insulation of the tubes, carry out a leakage test.
TUBE INSULATION
All tubes of water must be insulated so that to avoid the formation of condensation and thermal dispersions along the tubes themselves. Verify that the insulation is the vapour coil type. The connections for the air escape and for the emptying must be out of the insulating thickness to assure the accessibility.
CONDENSATE DISCHARGE CONNECTION
CONNECTIONS SUPPORTS
The weight of the hydraulic connections must be supported in the exterior of the unit so as not to stress the connections of user devices (exchangers, coils, humidifiers, etc ) .
ANTI-VIBRATION DEVICES
In case of units with anti-vibration devices, it is necessary to assemble elastic joints, even on water connections.
RISK OF FREEZE
If the unit and the relevant water connections are subject to temperatures near 0°C:
• mix the water of the system with glycol
• protect the tubes with heating cables under the tubes
insulation
• empty the system by verifying that:
o no taps are closed so they can not trap the water,
even after emptying
o there are no low points where the water can
stagnate even after emptying; blow if necessary
INSTALLATION EMPTYING
The refilling of the water present in the installation increase the oxidation phenomena and lime deposits.
If necessary empty only the interested system section and anyway empty or refill the installation if necessary .
EXPANSION TANK
The installation must be kept at the right pressure by both an expansion tank and a combined valve of pressure reduction and discharge; if the components are present on the unit, they must be installed on the installation. The expansion tank must be dimensioned in function of the water in the installation.
MAX. WORKING PRESSURE = 10 Bar
ARIES EFFECTS AND AIR BUBBLES CAN PRODUCE
THE OVERCOMING AND CAUSE WATER DROPS.
The condensate must be dispersed to avoid damages to persons and property.
1. Unit discharge fitting : the connection must avoid the transmission of mechanical stresses and must be performed paying attention to avoid the damaging of the unit discharge fitting
2. Make a trap that, eliminating the depression caused by the fan, stops the return of gas from the discharge pipe (see the figure).
3. Connect the condensate discharge to a rainwater drain. Do NOT use sewerage drains, so as to avoid the return of odours if the water contained in the trap evaporates.
4. Finally, check that the condensate will drain correctly by pouring water into the tray stud.
WATER HEATING COIL
OPTIONAL - The position of the connections is shown on the dimensional drawing of the unit. The air valve is placed on the top of the coil manifold, it is used to eliminate possible air bubbles on the circuit. The discharge valve is placed on the bottom of the manifold, it is used to empty the coil if it is unused for a long period.
TO AVOID THE FREEZE FORMING INSIDE THE COIL
1. If the unit or the relevant water connection are subjects to temperatures next to 0°C see RISK OF FREEZE in the GENERAL WARNINGS paragraph.
2. The freeze forming is possible also in summer in abnormal operating conditions (ex. Insufficient air flow-rate for clogged filters). It is so recommended to glycolate or empty also in summer
M42740M4-02 02/10/08 page 9
AIR CONNECTIONS
Proper execution and sizing of air connections are essential for ensuring correct operation of the unit and an acceptable level of silence in the room.
When designing and creating ducts, consider PRESSURE DROPS, FLOW RATE and AIR SPEED which need to be compatible with the characteristics of the unit. Special consideration needs to be made for pressure drops that are greater than the unit's static pressure, which would lead to a reduction in flow rate resulting in unit shutdown.
the weight of the ducts must not be supported by the
connection flanges
place anti-vibration joints between the ducts and the
unit
the connection to the flanges and between the various
sections of the ducts must ensure an airtight seal, preventing leakage in delivery and return which would compromise overall system efficiency.
limit pressure drops by optimizing the path, the type
and number of curves and the branches
use curves with a wide radius. Consider whether it
might be useful to equip them with deflectors (especially if the air speed is high or if curves are tight)
FEATURES FOR DUCTS FOR TREATED AIR
1. The inner surface of the duct must be smooth and washable. It must not contaminate the air.
2. Thermally insulate the ducts and the flanges so as to prevent loss of energy and condensation build-up.
Proper distribution of air in the room is essential for ensuring comfort levels.
In the selection and positioning of grilles, outlets and diffusers, the following are to be avoided:
3. excessive air speed
4. formation of stagnant zones and layering
5. entry of cold air into the room
6. formation of localized currents (due to uneven air distribution)
7. excessive variations in ambient temperature in the vertical and horizontal planes
8. short circuiting of delivery air towards return air
For purposes of comfort, the following things need to be considered:
9. air diffusers must be selected by checking the sound power generated at nominal flow rate conditions
10. the disconnections to the diffusers are to be made using flexible elements
11. the return grilles must be amply sized
M42740M4-02 02/10/08 page 10
ELECTRICAL CONNECTION
GENERAL
The characteristics of the electrical lines and relevant components must be determined by SPECIALIZED PERSONNEL ABLE TO DESIGN ELECTRICAL INSTALLATIONS; moreover, the lines must be in conformity with professional procedures and the regulations in force.
All electrical operations should be performed by trained PERSONNEL HAVING THE NECESSARY REQUISITES UNDER LAW and being informed about the risks relevant to these activities.
Before performing any operation on the electrical system, make sure that the unit supply line is SELECTED AT START.
The earth connection must be made prior to other electrical connections.
For all electrical type operations, REFER TO THE ELECTRICAL DIAGRAM ATTACHED TO THE UNIT; the number of the diagram is shown on the registration plate positioned on the electrical board or next to it.
The electrical diagram should be carefully kept together with this manual and should be AVAILABLE FOR FUTURE INTERVENTION ON THE UNIT.
LINE OF UNIT POWER SUPPLY The ELECTRICAL DATA OF THE UNIT are shown in the
technical chart of this manual and on the unit registration plate. The presence of accessories can vary according to
the unit; the electrical data shown in the technical chart refer to standard units. In the event of differences between the data of the registration plate and the data shown in this manual, as well as in the technical chart, please refer to the DATA SHOWN IN THE REGISTRATION PLATE.
The protection device of the unit power supply line should break off the short circuit power whose value should be determined according to the plant features.
The section of supply cables and protection cable must be seized according to the characteristics of the protections used.
SIGNALS / DATA LINES Do not overpass the maximum power allowed, which
varies, according to the type of signal.
Lay the cables far from power cables or cables having a different 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 are no disturbances
Assure the continuity of the screen during the entire extension of the cable.
Observe, if any, the requirements about impendency, capacity, attenuation.
STANDARD UNIT ELECTRICAL DATA
VOLTAGE: 400/3/50
Size 91 121 142 162 182 202 242
F.L.A. - Full load current at max admissible conditions
F.L.A. - Total A 2.2 3.1 2.7 4 4 5.2 7.5
F.L.I. Full load power input at max admissible condition
F.L.I. - Total kW 0.75 1.1 1.1 1.5 1.5 2.2 3
M.I.C. Maximum inrush current
M.I.C. - Value A 10.6 12.7 12.7 18 18 26.4 39
CONNECTION TO THE MAINS
1. Make sure that the sectioning device at the beginning of the unit’s power line is opened, locked and equipped with a signal.
2. Open the general line disconnecting switch (if present)
3. Verify that the net is in conformity with the data shown in the registration plate placed on the electrical board.
4. Check the dimensional drawing for the input of the electrical lines
5. Take away the closing plate placed on the electric board (ONLY IF PRESENT) and drill a hole through it to pass the cables through)
6. Protect the cables, using the fairlead of an adequate size.
7. Using the layout of the electrical diagram, single out the connecting terminals of the electrical supply cables, of the neutral (if foreseen) and the PE protection cable
8. Connect the cables to the relevant terminal boards
9. Before supplying power to the unit, make sure that all the safety devices that were removed during electrical connections are positioned again.
M42740M4-02 02/10/08 page 11
The wiring diagrams are always updated : before connecting, check on the wiring diagram of the unit .
unit configuration :
standard – only terminal block
only terminal block + 2-speed motor
unit configuration:
M42740M4-02 02/10/08 page 12
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