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18 

IF THE CRANKCASE HEATERS ARE FITTED 

when the unit is started up for the first time and following 
all prolonged periods of inactivity is OBLIGATORY to 
connect the oil heaters on the compressor crankcase at 
least 8 hours before the compressor is to be starter. 
BEFORE POWERING THE HEATERS, OPEN THE 
COMPRESSORS COCKS, IF PRESENT. 
To supply the heaters is necessary to switch off the 
isolator switch on the unit. 
To make sure  that hte heaters are working, check the 
power input with amperometic pliers. 
At start-up the compressor cranckase temperature on the 
lower side must be higher at least of  10°C than the 
external temperature. 
DO NOT START THE COMPRESSOR WITH THE 
CRANKCASE OIL BELOW OPERATING 
TEMPERATURE.  
 

VERIFY TENSIONS – ABSORPTIONS 

Check that the temperatures of the fluids are included in 
the WORKING LIMITS. 
If the controls of the previous paragraphs are positive, it is 
possible to restart the unit. 
For information on the control panel, refer to the paragraph 
CONTROL.  
While the unit is working (ATTENTION ELECTRIC RISK: 
WORK SAFETLY) check:

  

 Power supply tension   

 Phase unbalance  

 Total absorption of the unit   

 Absorption of the single electric loads 

 

UNIT EQUIPPED WITH SCROLL COMPRESSORS 

The GENERAL TECHNICAL DATA table shows the type 
of compressor on the unit. 
The Scroll compressors have only one direction of 
rotation. 
In the event that the direction is reversed, the compressor 
will not be damaged, but its noisiness will increase and 
pumping will be negatively affected. After a few minutes, 
the compressor will stop because of the activation of the 
thermal protection. In this event, cut the power and 
reverse the 2 phases on the machine power. 
Prevent the compressor from working with in reverse 
rotation: more than 2-3 anomalous starts up can damage 
it. 
Make sure the direction of rotation is correct, measure the 
condensation and suction pressure. Pressure must clearly 
differ: at the start, the suction pressure decreases whilst 
the condensation pressure increases. 
The phase optional monitor, which controls the phase 
sequence, can be installed later. 

REMOTE INPUT CONFIGURATIONS 

Check used remote inputs are activated (ON-OFF etc.) as 
given in the instructions in the ELECTRIC WIRING 
chapter.  

SETTING THE SET-POINT 

Check if it is necessary to modify the set-points shown in 
the CONTROL chapter 
 

AIR FLOW CHECK 

The effective unit flow-rate is function of the aeraulic 
system characteristics.  

It is so necessary to check the air flow-rate and eventually 
to proceed with the appropriate calibrations on the system 
(dampers, diffusers etc) and on the unit (fan speed control, 
pulley calibrations etc in base of the unit type and its 
configuration). Before performing the check, make sure 
that the system has been completed in all its parts 
(derivations, dampers, grilles, diffusers etc) . 
 

D = unit head-flow rate curve 
A = system calculated curve 
1 = project theorical working point   

3

 = if the system has pressure drop lower than the project 

ones, the working point will be the 3,with flow-rate 
higher that the project one 

2

 = if the system has pressure drop higher than the project 

ones, the working point will be the 2, with flow-rate 
lower that the project one 

 
In the time the working point can change, for example for 
the operations on the system (grilles covered by furniture, 
closed outlets to modify the air diffusion, exclusion or 
addition of the distribution sections etc.) or for lacking 
maintenance (clogged air filters, blocked dampers etc)  . 

REFRIGERANT CIRCUIT PARAMETER CHECK 

Detecting the operational conditions is useful to control the 
unit along time: the performed records must be kept and 
be available during maintenance interventions.  
When the unit works in stable conditions and according to 
the operating limits, take note of the following data: 

1.   compressor diacharge temperature (WARNING – 

BURN DANGERI) 

2. condensing 

pressure 

3. liquid 

temperature 

4.  dehydrator filter upstream and downstream 

temperature 

5. return 

pressure 

6. return 

temperature 

7.  return air temperature 
8. supply 

air 

temperature 

9.  external air temperature (coil input) 
10.  air temperature coming out from fans  

Pa

L/sec

1

2

3

B

A

C

D

Summary of Contents for CPAN-U-17

Page 1: ...CPAN U 17 21 25 31 41 51 ELFOFRESH LARGE Make up unit full fresh air Installation and Use Manual M25E40P5 11 22 04 14...

Page 2: ......

Page 3: ...MAINS 15 FUNCTIONAL CONNECTIONS 15 SYSTEM COMPOSITION 16 S T A R T U P 1 7 PRELIMINARY CHECKS 17 AERAULIC SYSTEM 17 REFRIGERANT SYSTEM 17 WATER SYSTEM 17 ELECTRICAL SYSTEM 17 VERIFy tensions absorpti...

Page 4: ...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...

Page 5: ...pressed SUMMER WINTER MODE CHANGE Key hold pressed The key is not operative if the unit is set for the automatic operating mode under such conditions the AUTO indication is displayed SOLO FAN Holding...

Page 6: ...e 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 wi...

Page 7: ...L 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...

Page 8: ...0 in weight CEE No Non applicable for mixtures Commercial name 03 Hazard identification Hazard identification Liquefied gas Vapours are heavier than air and can cause choking by reducing the oxygen av...

Page 9: ...alve if supplied is correctly assembled Verify that the cap if supplied is well assembled and that there is adequate ventilation Verify that the norms in force are respected 15 Information on the norm...

Page 10: ...es which activate the safety valves 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 mod...

Page 11: ...s must be doubled 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 p...

Page 12: ...IONS 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...

Page 13: ...cs pressure inclusive between 0 1 and 0 8 Mpa 1 8bar temperature inclusive between 1 and 40 C Do not use softened water it may cause corrosion of the electrodes and foaming resulting in malfunctions f...

Page 14: ...ak 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...

Page 15: ...cess is reserved to authorized assistance centres in order to avoid unauthorized modifications ON OFF FROM REMOTE CONTROL Generally the unit is delivered with bridged terminals if the control is not u...

Page 16: ...ions available on the machine keyboard SERIAL CONVERTER TTL RS485 OPTIONAL code PE6B0020 The supervision services are available with standard modbus protocol Plugged in in the main module on the elect...

Page 17: ...er Open the cocks of the refrigerator circuit if there are any Using the unit manometers if present or service manometers verify that the refrigerating circuit is in pressure Make sure that all the se...

Page 18: ...condensation pressure increases The phase optional monitor which controls the phase sequence can be installed later REMOTE INPUT CONFIGURATIONS Check used remote inputs are activated ON OFF etc as giv...

Page 19: ...tilation EXTERNAL temperature 10 C 35 C OFF OFF ON AMBIENT temperature 16 C 30 C OFF OFF ON OUTLET temperature OPERATING MODES SUMMER WINTER MODE MODE CHANGE MANUAL The choice between the HEATING or t...

Page 20: ...acing them of 1 C respect the manual set COOLING 24 C HEATING 22 C AUTOMATIC AMBIENT SET POINT The set point can also be adjusted AUTOMATICALLY to the external temperature variations the variation cur...

Page 21: ...t alarms are reset holding the buttons ECO and Clean pressed KEY LOCK All button functions can be locked by holding the buttons Clean and On Off pressed The lock is signalled by the characters wheneve...

Page 22: ...by the ALARM CODE blinking and by the machine time it they occurred The cumulative lock relay activates simultaneously with the alarm code displaying Some alarms typically PRE ALARMS do not activate...

Page 23: ...ess Dehumidification signalling with reduced flow rate E33 Recovery compressor lockout for low enthalpy ambient air temperature heat mode Automatic Recovery compressor lockout and ventilation lockout...

Page 24: ...e key ON OFF pressed With unit off the indication OFF is displayed even if the unit has been switched off by a digital input or supervisor COOLING HEATING SELECTION To select the unit operating mode h...

Page 25: ...11 Setpoint compensation outside temperature 4 Text4 30 C 12 Setpoint compensation value 0 set 00 19 C 13 Setpoint compensation value 1 set 01 21 C 14 Setpoint compensation value 2 set 02 23 C 15 Setp...

Page 26: ...ompressor operating mode 1 heat pump 0 1 010 Active dehumidification status 0 1 011 Free Cooling status 0 1 012 Free Heating status 0 1 013 Vfan control variable 014 Supply Fan control signal 015 Supp...

Page 27: ...homologation day 044 Modulation time of resi stance water control valve opening count sec 045 Correction time of resi stance water control valve opening count sec 046 On off status of electrostatic f...

Page 28: ...Verify that the aluminum fins are not bent or damaged In the event of damages contact the authorized assistance center and get the battery ironed out in order to restore the initial condition for an...

Page 29: ...ion 3 Fill the spray pump with the prepared solution 4 Position the filter to be washed on a support so you can work comfortably Spray the detergent on the blades of the electrostatic filter 5 Also sp...

Page 30: ...y fine grain steel wool Because of the high voltage that powers them the ionization wires are subject to wear Yearly replacement will prevent unexpected breakage If breakage occurs 1 Remove all pieces...

Page 31: ...general condition lack of leaks quarterly after not more than 1000 hours of service check of operation general condition lack of leaks any replacement required yearly after not more than 2500 hours of...

Page 32: ...th a corrosive atmosphere 97 23 CE PED DIRECTIVE PUT AT REST If a long period of inactivity is foreseen for example the winter for the cooling unit the following is recommended to turn the power off i...

Page 33: ...20 8 35 71 25 8 44 22 30 8 51 59 35 8 58 09 40 8 63 92 1 0 37 03 6 0 4 10 11 0 13 40 16 0 26 01 21 0 36 08 26 0 44 53 31 0 51 86 36 0 58 34 41 0 64 14 1 2 34 84 6 2 3 24 11 2 13 97 16 2 26 46 21 2 36...

Page 34: ...eds calibrating insufficient refrigerant charge FAN PROTECTION 1 Identify the part on the wiring diagram 2 fan mechanically jammed bearings drive belt if present 3 Loose electric contacts terminals le...

Page 35: ...ored in special containers When recovering the substances present in the unit all measures must be taken to avoid damaging persons and things and polluting the surrounding area Awaiting dismantling an...

Page 36: ...00 180 270 340 AIR HANDLING SECTION FANS EXHAUST Type of fans 4 CFG Number of fans 1 Standard air flow l s 300 360 440 550 640 860 Installed unit power kW 0 3 0 3 0 4 0 4 0 6 0 6 Max outside static pr...

Page 37: ...ET BULB TO OUTDOOR AIR TEMPERATURE HANDLING COIL INLET C DB DRY BULB 1 THE DASHED AREA REFERS TO THE FIELD OF UNITS OPERATION STANDARD 2 OPERATION FIELD EXTENSION WITH PREHEATING HEATERS SOUND LEVELS...

Page 38: ...ER OUTLET ADDITIONAL COIL 3 4 15 WATER INLET ADDITIONAL COIL 3 4 16 HUMIDIFIER INLET WATER 1 2 GAS 17 CONDENSATE DISCHARGE 18 AUXILIARY ELECTRIC HEATERS OPTIONAL 19 EXHAUST AIR FILTER G4 OPTIONAL 20 B...

Page 39: ...T ADDITIONAL COIL 3 4 15 WATER INLET ADDITIONAL COIL 3 4 16 HUMIDIFIER INLET WATER 1 2 GAS 17 CONDENSATE DISCHARGE 18 AUXILIARY ELECTRIC HEATERS OPTIONAL 19 EXHAUST AIR FILTER G4 OPTIONAL 20 BRACKETS...

Page 40: ...R OUTLET ADDITIONAL COIL 3 4 15 WATER INLET ADDITIONAL COIL 3 4 16 HUMIDIFIER INLET WATER 1 2 GAS 17 CONDENSATE DISCHARGE 18 AUXILIARY ELECTRIC HEATERS OPTIONAL 19 EXHAUST AIR FILTER G4 OPTIONAL 20 BR...

Page 41: ...T ADDITIONAL COIL 3 4 15 WATER INLET ADDITIONAL COIL 3 4 16 HUMIDIFIER INLET WATER 1 2 GAS 17 CONDENSATE DISCHARGE 18 AUXILIARY ELECTRIC HEATERS OPTIONAL 19 EXHAUST AIR FILTER G4 OPTIONAL 20 BRACKETS...

Page 42: ...pag 42...

Page 43: ...pag 43...

Page 44: ...93 8606248 Fax 34 93 8855392 info clivetcomercial com CLIVET ESPA A S A U Service and Maintenance Division Calle Real de Burgos N 12 28860 Paracuellos del Jarama Madrid Espa a Tel 34 91 6658280 Fax 34...

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