CIAT CONDENCIAT CL2 User manual

condenciat CL2
07 - 2015
NA 15.15 B
Instruction manual

NA 15.15 B EN - 2

EN
EN - 1 NA 15.15 B
CONTENTS PAGE
1 - INTRODUCTION 4
2 - INCOMING GOODS 4
3 - IDENTIFICATION OF THE EQUIPMENT 4
4 - GUARANTEE 4
5 - SAFETY RECOMMENDATIONS 4
6 - UNIT LOCATION 4
7 - WEIGHT AND HANDING 4
8 - OPERATING LIMITS 4
9 - TECHNICAL CARACTERISTICS 5
10 - ELECTRICAL CHARACTERISTICS 5
11 - DIMENSIONS 6
12 - INSTALLATION 8
13 - ElECTRICAL CONNECTIONS 9
14 - SETTING OF SAFETY AND CONTROL DEVICES 9
15 - REFRIGERANT CONNECTIONS 10
16 - COMMISSIONING 12
17 -
MAINTENANCE 12
18 - FAILURES CONTROL AND ANALYSIS 13
19 -
DECLARATION OF CONFORMITY 13
Original text: French Version

NA 15.15 B EN - 2
1 - INTRODUCTION
The standard CONDENCIAT CL2 are outdoor air cooled condensing units equipped with :
- Low-noise scroll compressor.
- Air cooled condenser
- Axial flow fan or fans with speed regulation.
All units are factory checked and tested ; they are supplied with a full R 410A refrigerant charge.
2 - INCOMING GOODS
Check the unit and the conformity of the delivery on arrival.
If the unit has been damaged or if the delivery is incomplete, express all necessary reservations on the delivery note.
IMPORTANT: You must confirm these reservations to the shipping company by registered letter within three days following
delivery.
3 - IDENTIFICATION OF THE EQUIPMENT
A manufacturer’s data plate is fitted on each unit, with an identification number.
The number must be mentioned in all correspondence.
4 - GUARANTEE
The guarantee covers a period of 12 months after commissioning, if this occurs within the 3 months following the invoicing date.
In all other cases, it covers a period of 15 months after invoicing date.
NB : For further details, refer to the document concerning the CIAT guarantee.
5 - SAFETY RECOMMENDATIONS
To avoid all risks of accidents at the time of installation, starting-up and adjustment operations, it is essential to take into
consideration the specific aspects of the equipment such as:
- Refrigerant circuit under pressure
- Presence of refrigerant
- Presence of electrical voltage
- Location
- Temperatures up to 150°C
Only experienced, qualified persons can work on this type of equipment. It is essential to comply with the recommendations and
instructions mentioned in the maintenance manuals, on labels or specific instructions.
All standards and regulations in force must be complied with at all times.
IMPORTANT: before carrying out any work on the unit, make sure that it has been disconnected from power supply.
6 - UNIT LOCATION
Before handling, installing and connecting the unit, the installer must check the following points:
- These units must be installed in the open air, close to the building, on a flat roof or in a garden. They are designed to operate
in the rain, but can also be installed under a four-side open shelter.
- The surface of the ground or the structure must be strong enough to bear the weight of the unit.
- Place the unit above the average snow depth for the region where the unit is being installed.
- The unit must be set perfectly level.
- The unit must be fully accessible to enable servicing and maintenance work to be carried out easily.
Noise level: our units have been designed to operate at low noise levels. Nonetheless, it is necessary to make sure, at the
installation design stage, that the outside environment is suitable for radiated noise and that the type of building is suitable for
airborne and solid-borne noise (vibrations).
Have a study carried out by an acoustician if necessary.
7 - WEIGHT AND HANDING
Once the location has been selected for the unit, install the equipment. Take the weight and the overall measurements of the unit
into account (see the technical characteristics table and the «Dimensions» paragraph).
.
Attention: lift the unit carefully and keep it upright at all times.
8 - OPERATING LIMITS
The CL2 has to operate within the limits below :
Minimum Maximum
Outdoor temperature -15°C +45°C
Evaporating temperature -20°C +12.5°C

EN
EN - 3 NA 15.15 B
9 - TECHNICAL CARACTERISTICS
10 - ELECTRICAL CHARACTERISTICS
* 2 or 3-wire cable, under visible duct or channel, for temperatures of less than 60°C, and for a maximum length of 30 m.
Note: for different conditions, refer to the standard in force in the country of installation
(1) Compulsory if the total refrigerant charge of your installation is above 4.5 kg
CONDENCIAT CL2 28 35 50 65 75
Compressor
Voltage
400 V - 3 Ph - 50 Hz
Maximum operating
current
A 6.9 7.6 10.3 11.2 14.3
Fans Maximum operating
current
A 0.46 0.97 0.92 1.94
Unit nominal voltage V 400 V - 3 Ph + N - 50 Hz
Total intensityNominal unit voltage A 7.5 8.7 11.3 13.3 16.4
Starting current A 36 49 65.5 75.5 102.5
Electrical cables not supplied * mm² 5G1.5 5G2.5 5G4 5G6
Recommended rating for
proximity lockable switch
Am 10 16 20
CONDENCIAT CL2 28 35 50 65 75
Compressor
Number
1
Type SCROLL
Oil capacity l 1.25 1.7
Type of oil POE
Refrigerant R410a
Refrigerant weight Kg 1.6 2.65 2.75 3
Crankcase heater
Power and current
W/A 45W / 0.2A
Option (1) 45W / 0.2A
Type of coil Grooved copper tubes - aluminium fins
Fan
Type
Hélicoid
Number 12
Nominal air flow m3/h 2350 2770 4700 5540 5000
Rpm 700 904 700 904
Weight Kg 69 69 101 112 118
Refrigerant connections
Liquid line
inches 3/8” 1/2”
Gas line inches 5/8” 3/4” 7/8”

NA 15.15 B EN - 4
11 - DIMENSIONS
Condenciat Models CL2 28 and 35
External air flow
LIQUID Line
SUCTION Gas Line
Anti-vibration
mount spacing
holes
for fixing the
mounts to the floor
Detail A
Position of holes for fixing
the anti-vibration mounts to
the floor
Four fixing points
(HM8 x 55 screws)
Option Anti-
vibration mounts
Anti-vibration
mount spacing

EN
EN - 5 NA 15.15 B
External air flow
LIQUID Line
SUCTION Gas Line
The anti-vibration mounts are fixed to the heat pump using four HM8 screws (length 55 mm).
Condenciat Models CL2 50, 65 and 75
Anti-vibration
mount spacing Anti-vibration
mount spacing
Option Anti-
vibration mounts
holes
for fixing the
mounts to the floor
Detail A
Position of holes for fixing
the anti-vibration mounts to
the floor
Four fixing points
(HM8 x 55 screws)

NA 15.15 B EN - 6
12 - INSTALLATION
200 mm
200 mm
There must be no obstacles preventing free air circulation around the air heat exchanger.
Follow the minimum distances given above.
Avoid prevailing winds.
Installation on loose ground Installation on a concrete basement
Concrete pedestals
Minimum
4 mounting points
(M8 screws)
Minimum
Min.
Min.
Min.
Concrete pedestal
400
1035 1000
263 602 170
150
1501500
410

EN
EN - 7 NA 15.15 B
13 - ElECTRICAL CONNECTIONS
The CONDENCIAT CL2 units are designed in conformity with the low voltage directive and more specifically in compliance with
the international standards EN 60335-1, EN 60335-2-40, EN 61000-6-1, EN 61000-6-2, EN 61000-6-3 and EN 61000-6-4.
When making the electrical connections, disconnect the unit from the power supply before carrying out any handling work.
Open the top of the unit as shown below and do the electrical connections in accordance with the supplied wiring diagram, and
tighten the terminals carefully.
DD
Remove the central screw
(at the back)
Unclip at each end Remove the cover
Cable way
Detail for the supply of the electrical panel
- Input for external control : this potential-free contact positioned between terminals 1 and 2 is used to start the compressor
- closed contact = run
- open contact = stop
To avoid damaging the compressor, do not exceed 10 ON / OFF cycles per hour
Data to be taken in account for the quality of the contact : the current which goes through is 35 mA under 230V.
- Fault outputs: they indicate the actuation of one of the 2 pressure switches.
Contacts characteristics : - Minimum current : 10 mA
- Minimum voltage : 10 V
- Load : 4000 Va in AC1, 750 VA in AC15
14 - SETTING OF SAFETY AND CONTROL DEVICES
High pressure switch, manual reset : start at 41.5 bars.
Low pressure switch, automatic reset : actuation at 2.5 bars / release at 4.5 bars.
Condensing pressure control : control at 24 bars (factory setting).
- The electrical characteristics of the available power supply available must correspond to the values shown on the manufacturer’s
plate.
- The electrical power must meet the following requirements for all the models:
230 V
+6
-10
% 50 Hz or 400 V
+6
-10
% 50 Hz
- All the wiring installations must be made in accordance with the regulations in force on the site of installation
(in France, NF C 15100).
The appropriate cable must be selected depending on the maximum current absorbed by the unit (see the electrical characteristics
table), the distance between the unit and the starting point of the power supply, the protection upstream, the operating system
used for the neutral terminal.
IMPORTANT : Connect the earthing circuit before making any other electrical connections.
The installation must be fitted with a master isolating switch.

NA 15.15 B EN - 8
15 - REFRIGERANT CONNECTIONS
Once the indoor and outdoor units are positioned, the refrigerant connections must be carried out to connect the units. Installation
norms must be respected and the pipe lay-out carefully studied, trying to get the smallest distance between both split units and
the smallest number of curves as possible. The elbow angles must be as wide as possible.. (Bend Ratio must be t3.5 x ) :
Evaporator
Evaporator
Maximum height : 30 m
Maximum equivalent length : 50 m
Maximum height : 30 m
Maximum equivalent length : 50 m
R
x
To calculate the equivalent pipe length, pressure drops on accessories must be taken into consideration.
Equivalent Length for 90º elbows:
Pipe diameter (inches) 3/8” 1/2” 5/8” 3/4” 7/8”
Equivalent length (m) 0.35 0.45 0.55 0.65 0.70
Pipe preparation
For refrigerant lines, use only copper refrigerant type tubing (Cu DHP type according to the ISO 1337 norm) insulated, cleaned
and deoxidized, adapted to an operating pressure of at least 4200 kPa and a miniumum bursting pressure of 20700 kPa. Use
of sanitary copper piping is prohibited.
- Smooth the tube ends, tilting them downward. Be sure that no dust is introduced inside the tube.
- Remove the Flare nuts from the unit connector. Insert them through the pipe. Flare the pipe ends.
- A proper flare must have the following characteristics :
* Smooth and polished internal surface
* Even and polished outside edges surface
* Even length conic flare
Insulate both pipes.
Connection of the units
- Connect both units
For the CL2, tighten the flare connectors with 2 spanners.
If 2 spanners are not used, a breaking may happen, and the product guarantee will be lost.
- Tighten with the torque indicated in the following chart. In case of insufficient torque a refrigerant leakage may occur. On the
other hand, an excessive torque may damage the flare connection and a leakage may also occur.
45°
2X
Pipe diameter Minimum pipe thickness Torque
mm (inches) mm Nm
9.52 3/8” 0.80 30
12.70 1/2” 0.80 40
15.87 5/8” 0.89 60
19.05 3/4” 1.00 80
22.22 7/8” 1.20 100

EN
EN - 9 NA 15.15 B
CL2’s valve caps
Under pressure test
Since it is forbidden to discharge R410A into the atmosphere (standard NF EN 378-2 paragraph 6.3.4.1), R410A may not be
used in pressure tests on the refrigerant connections.
- Keep the CL2’s isolating valves closed.
- Use the CL2’s service valve (Schrader) to add a small amount of R410A and some nitrogen up to 10 bars.
- Check that every connections are tight.
Vacuuming and R410 charge
- Remove the pressure from the circuit.
- Connect the Manifold on the CL2’s gas service valve (Schrader). Connect the vacuum pump.
- Make the vacuum inside the evaporator and the 2 pipes until reaching -0.1Mpa (-76cm Hg).
- Stop the vacuum pump and be sure that the pressure remains stable during 5 minutes.
- Disconnect the vacuum pump.
- Connect the R410A cylinder on the Manifold, without tightening.
- Open momentarily the valve of the R410A cylinder to purge the charge hose.
- Tighten the nut on the Manifold.
- Open the valve of the R410A cylinder to break the vacuum of your installation.
- Remove the CL2’s isolating valve caps and open the valves (counter clockwise).
- Place back the caps of the valves.
- Disconnect one wire of the low pressure switch.
- Before starting the compressor, check that following steps are finished :
- Electrical connections (check every connections are well tightened, voltage is constant and conform to the
manufacturer’s plates).
- Refrigerant connections
- Pressure test
- Vacuuming
- To load R410A, switch power supply ON and start the compressor (closing of the contact on the external control input)
Case of CL2 connected to CIAT’s air handling unit :
CL2 are preloaded with R410A. Add the load indicated in the user’s guide of the air handling unit and the additionnal
load below corresponding to the length of your pipes :
Condenciat CL2 Additional charge (g/m)
28
55
35 58
50 61
65 70
75 101
Example : for 3 meters of pipes between the CL50 and the indoor unit, the additionnal load will be 3x61g.
For other cases :
Add refrigerant while controlling superheating and subcooling.
- Superheating : 5 to 6K
- Subcooling : - 3 to 4K for an evaporating temperature of 10°C
- 6 to 9K for an evaporating temperature of 0°C
- Once the charge is completed, close the valve of the R410A cylinder.
- Stop compressor and switch OFF power supply. Reconnect the wire of the low pressure switch.
- Remove the charging device

NA 15.15 B EN - 10
16 - COMMISSIONING
- You can now restart the equipment and check its smooth running.
- Check the safety devices.
It is recommended to fill the operating report (table below) of the equipment, indicating serial number and all other required data,
printed on the manufacturer plate. It will help controlling the performances of the installation and preventing failures.
Maintenance
Before carrying out any maintenance work on the unit,
disconnect it from the power supply. For units fitted with orange
terminals, open all the orange switching terminals and switch
off the 2 circuit breakers.
Maintenance work on compressor
The compressor is fixed to the platform by 4 screws diameter
8 mm.
Attention: when tightening these screws, the maximum torque
to be applied is 13 Nm.
If you do not have a torque wrench, tighten the screws until
you feel a certain resistance, and then tighten a further
threequarters
of a turn.
Advice
Make operating reports and checks as set out in the table
(above) at least once a year.
To ensure correct operation of the unit and benefit from the
guarantee: take out a maintenance contract with your
installer, or with an approved maintenance company.
Make a visual and auditory check of the whole installation in
operation.
Check that there are no traces of oil around the unit
Specificities and mandatory checks relating to the use of
refrigerant fluid
In accordance with Regulation (EC) No. 842/2006 on
certain greenhouse gases.
R410A refrigerant fluid is a gas that has the following impact
on the environment:
1/ No impact on the ozone layer: ODP
(Ozone Depletion Potential) = 0.
2/ Impact on the greenhouse effect: GWP
(Global Warming Potential) = 1720.
- Users must have systems containing over 3 kg of refrigerant
periodically checked for leaks by qualified personnel.
Regardless of the refrigerant charge in your system, CIAT
demands that this check be carried out in order to keep your
system in good working order.
- Users of any system containing over 3 kg of refrigerant
are required to keep a log of the quantities and types of
refrigerants used, added or recovered, and to include the
dates and results of leak tests, the name of the technician
and of the technician’s company. CIAT strongly recommends
keeping such a log even if the refrigerant load of your system
does not require one.
- A leak test must be carried out one month following any leak
repairs.
- It is the duty of operators to collect used refrigerant and to
have it recycled, regenerated or destroyed.
Compulsory annual inspection
Detection of leaks on the cooling circuit.
Battery cleaning:
- Remove the cover of the unit (see « Electrical connections «
procedure chapter).
- Carefully clean the battery and the ventilation compartment
with a vacuum cleaner.
- Put the cover back in place.
Clean the drain pan of the unit.
Date / Time
Operating report
CONDENCIAT CL2
Commissioning date :
Serial number :
Installer :
Installation place :
Model : 283550
65 75
Compressor
Suction pressure
bars
Suction temperature °C
Condensing pressure bars
Condensing temperature °C
Air condenser
Gas inlet temperature
°C
Liquid outlet temperature °C
Air inlet temperature °C
Air outlet temperature °C
Nominal voltage V
Voltage at terminals V
Current absorbed by motors A
Mechanical inspection : tubes, fastenings,...
Electrical connections tightness control
Battery cleaning
Check of control functions
17 - MAINTENANCE

EN
EN - 11 NA 15.15 B
ENGLISH
NOTIFICATION OF COMPLIANCE
(Directive CEM 2004/108/CEE)
(Directive Machines 2006/42/CE)
(Directive RoHS 2011/65/UE)
tHE mANUFACTURER : CIAT
Avenue Jean Falconnier
Boite Postale N°14
01350 CULOZ - FRANCE
declares that the designated machine below :
Désignation : Condenciat CL2
Trademark : CIAT
is in accordance with the arrangements of the modified Machines
Directive and with the national legislations transposing it.
CULOZ,
p
Problem Cause Solution
Condensing pressure too low a) Insufficient refrigerant charge
b) Obstacle in the expansion device
a) Find the leak, add refrigerant
b) Check expansion device
Condensing pressure too high compared to with
external air temperature, high pressure alarm
a) Insufficient air flow
b) Air temperature too high
c) Condenser dirty (no exchange)
d) Excessive refrigerant charge (flooded condenser)
e) External fan damaged
f) Air inside refrigerant circuit
a) Check the condenser fan
b) Check the condensation regulation settings
c) Clean it
d) Purge
e) Repair
f) Purge
Compressor does not start, humming noise a) Power supply default
b) Some control contacts are opened
c) Compressor contactor coil burnt
d) Internal klixon thermostat open
a) Check circuit breaker, fuses
b) Check safety chain
c) Replace
d) Wait for restart.
Compressor does not start. Motor makes sporadic
noises.
a) Low voltage
b) Power wire unplugged
a) Measure voltage and find voltage drop
b) Check connections
Compressor does not start.
Motor makes sporadic noises
a) External control cycling too rapidly
b) Insufficient refrigerant gas
c) Evaporator coil dirty
d) Evaporator fan or pump does not work
e) Expansion device damaged of blocked
f) Dirty Filter Dryer
a) Modify control (increase the differential of the control)
b) Repair the leakage. Add refrigerant charge
c) Clean it.
d) Repair or replace it
e) Replace expansion device
f) Replace it
Compressor is noisy a) Loose fixation
b) Lack of oil
c) Internal friction noise
a) Tighten it
b) Add oil to the recommended level
c) Replace it
Noisy operation a) Unit installed without antivibrations mounts a) Place the unit on antivibrations mounts
Evaporating pressure too low a) Insufficient flow through the evaporator
b) Frozen evaporator (if air-cooled type)
c) Expansion device blocked.
d) Insufficient refrigerant charge
e) Condensing pressure too low
f) Evaporator or evaporator’s accelerator pump failure
a) Check flow
b) Check anti-frost operation
c) Remove and clean expansion device. Change filter
drier
d) Repair the leakage. Add refrigerant charge
e) (excessive condenser air flow). Adjust the flow with
the wheel of the CL2’s control board
f) Repair it
18 - FAILURES CONTROL AND ANALYSIS
Important : use the original spare parts for repairs.
Condenciat CL2
CIAT
01/12/14
n
o
p
n
o
19 - DECLARATION OF CONFORMITY

NA 15.15 B EN - 12
20 - GUARANTEE
See our general terms of sale.

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01350 Culoz - France
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[email protected] - www.ciat.com
Compagnie Industrielle
d’Applications Thermiques
S.A. au capital de 26 728 480 €
R.C.S. Bourg-en-Bresse B 545.620.114
Non-contractual document. As part of its policy of continual product
improvement, CIAT reserves the right to make any technical
modifications it feels appropriate without prior notification.
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