Home

You can select a Certification Programme from the list below to retrieve its description (scope of the programme, definitions...)

  See certified products


 
Scope of the programme

This programme applies to standard chillers used for air conditioning and for refrigeration. They may operate with any type of compressor (hermetic, semi-hermetic and open) but only electrically driven chillers are included. Only refrigerants authorised in EU are considered. Chillers may be air-cooled, liquid cooled or evaporative cooled. Reverse cycle liquid chillers shall be certified in cooling and heating mode. The programme covers all chillers with the limitation of cooling capacities of approved independent laboratories

The following units are specifically excluded from the certification programme:
- chillers powered by other than electric motor drives
- free cooling ratings
- heat recovery and no-reverse cycle heat pumps
- 60 Hz units

Participating companies must certify all production models within the scope of the programme :

Application Maximum capacity
Air cooled
600 kW
Water cooled
1500 kW
 Medium Brine
 300 kW
 Low Brine
 200 kW

Higher capacities may be certified as an option.

Three applications are covered by the Standard :
- air conditioning, with leaving chilled water temperature between + 2°C and + 15°C
- medium brine, with leaving brine temperature between + 3°C and - 12°C
- low brine, with leaving brine temperature between - 8°C and - 25°C

A special application for heating and cooling floors is also included.

Definitions

2.1 Liquid Chilling Package
A factory assembled unit, designed to cool liquid, using a compressor, an evaporator and an integral and appropriate controls.

Definitions in red are in accordance with EN14511-1 (2011)

2.2 Cooling capacity

Heat given off from the heat transfer medium to the unit per unit time (kW).

2.3 Power Input

Average electrical power input of the liquid chilling package within the defined interval of time obtained from:
a) the power input for operation of the compressor(s) and any power input for defrosting;
b) the power input of all control and safety devices of the unit;
c) proportional power input of the conveying devices (e.g. fans, pumps) for ensuring the transport of the heat transfer media inside the unit.

2.4 Energy efficiency Ratio (EER)
Ratio of the cooling capacity to the power input of the unit.

2.5 Part load
Operation at partial capacity

2.6 Load rate (noted LR only for the cooling mode of air conditioning chillers)
The ratio of the cooling capacity at partial capacity and reduced condenser inlet water or air temperature to the cooling capacity at the standard rating conditions with the following rating conditions:
- For air cooled chillers:
1. The leaving water temperature is set at 7°C
2. The evaporator water-flow rate is equal to the standard rating water-flow rate.
3. The air-flow rate is controlled by the chiller

- For water cooled chillers:
1. The leaving water temperature is set at 7°C
2. The evaporator and condenser water-flow rate is equal to the standard rating water-flow rates
3. The condenser water flow rate is controlled by the chiller. If the chiller doesn’t control it, the condenser water flow rate will be equal to the standard rating water flow rate.

2.7 ESEER (only for the cooling mode of air conditioning chillers)
The European Seasonal Energy Efficiency Ratio is a weighed formula enabling to take into account the variation of EER with the load rate and the variation of air or water inlet condenser temperature.


2.8 Heating capacity
Heat given off by the unit to the heat transfer medium per unit of time (kW).

2.9 Coefficient of Performance (COP)
Ratio of the heating capacity to the power input of the unit.

2.10 Liquid pressure drop on evaporator
Chilled liquid internal pressure difference between inlet and outlet of evaporator.

2.11 Liquid pressure drop on condenser
Condenser liquid internal pressure difference between inlet and outlet of condenser.

2.12 Available pressure
Available liquid pressure for units with integrated pump.

2.13 Air pressure drop on condenser
Condenser air internal pressure difference between inlet and outlet.

2.14 A-weighted sound power level
Sound power level radiated by the air cooled chiller.

2.15 Gross Energy Effeciency Ratio (EER gross)
Ratio of the cooling capacity (measured while the pump is noy running for chillers with integral pump) to the power input of the unit(excluding the power consumption of integral pump)
- This performance was certified by Eurovent before the revision of water pumps correction in EN14511 (2011).

2.16 Gross Coefficient Of Performances (COP gross)
Ratio of the heating capacity (measured while the pump is not running for chillers with integral pump) to the power input of the unit(excluding the power consumption of integral pump)
- This performance was certified by Eurovent before the revision of water pumps correction in EN14511 (2011).

Testing requirements

Standard ratings are established at the Standard Rating Conditions and verified by tests conducted in accordance with the following standards :

3.1 Cooling and heating capacity
EN 1451-2011
"Air conditioners, liquid chilling packages and heat pumps with electrically driven compressors for space heating and cooling".

3.2 Sound power level
ISO 9614
"Determination of sound power levels of noise sources using sound intensity".
ISO 3744
"Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane".

Rating requirements

For capacity tests Standard Rating Conditions, see the following table:


Temperatures
Cooling Heating
ApplicationCode Evaporator Condenser Evaporator Condenser
Air conditioning LCP/A../AC
Air / Water
12/735a 40/457(6)
LCP/W../AC
Water / Water
12/7 30/35 40/45 10/7
LCP/W../AC-MB
Water / Brine
12/7
30/35
40/45
0/-3
LCP/T../AC
without flasheconomiser
12/7 45-40c --
LCP/T../AC
with flasheconomiser
12/7 45d --
Medium Brine
LCP/A../MB
Air / Water
0/-5 35a40/45 7(6)
LCP/W../MB
Brine / Brine
or Brine / Water
0/-5
30/35
40/45
10/7
LCP / T../MB
without flasheconomiser
0/-545-40b
--
LCP/T../MB
with flasheconomiser
0/-5
45d- -
Low Brine
LCP/A../LB
Air / Water
-10/-15
35a
40/45
7(6)
LCP/W../LB
Brine / Brine
or Brine / Water
-10/-1530/35
40/45
10/7
LCP/T../LB
without flasheconomiser
-10/-1545-40b
- -
LCP/T../LB
with flasheconomiser
-10/-15
45d-
-
Cool-heating Floor
LCP/A../CHF
Air / Water
23/18
35a
30/35
7(6)
LCP/W../CHF
Water / Water
23/1830/35
30/3510/7
LCP/W../CHF-MB
Brine / Brine
or Water / Brine
23/1830/35
30/350/-3

a Dry bulb
b Measurement with the same water flow as in cooling mode
c The temperature corresponds to compressor discharge pressure (bubble point) – liquid at expansion valve
d The temperature corresponds to compressor discharge pressure

Certified characteristics

The following characteristics of Liquid Chilling Packages are verified by tests at Standard Rating Conditions and at one of Application Rating Conditions selected by Eurovent:

a) cooling capacity
b) energy efficiency (EER)
c) the European Seasonal Energy Efficiency Ratio (ESEER)
d) water pressure drop or available pressureat evaporator in cooling
e) water pressure drop or available pressure at condenser in cooling
f) heating capacity for reverse cycle unit
g) energy efficiency (COP)
h) water pressure drop or available pressure at evaporator in heating
i) water pressure drop or available pressure at condenser in heating
j) A-weighted sound power for Air Cooled Units

All characteristics are for a fouling factor equal to zero.

Part Load Certification and ESEER calculation

Chillers usually operate at full load only during a limited period of time during a year.
Therefore the part load performance is much closer to reality and Eurovent decided to certify, together with full load efficiency, an average annual part load efficiency of chillers.

A study partly funded by the European Commission through SAVE Programme was performed and an index called ESEER – Seasonal energy efficiency ratio- has been defined.
This index similar to IPLV – Integrated part load value - used by ARI in the US, takes into account several parameters in order to establish an average use of chillers throughout Europe: weather data, building load characteristics, operational hours etc. Therefore the ESEER is realistic tool, much better than full load EER, to be used to compare average efficiency of two chillers. However it must be kept in mind that ESEER cannot be used to calculate exact energy consumption for a particular use in a particular geographic position.

In order to compute ESEER the three part load EER for 25%, 50% and 75% load are combined with full load EER. This global single figure is published in the Eurovent Directory of certified products together with cooling capacity and power input for standard conditions at full load. The operating temperatures and average weighting coefficients for Europe are given in the table below.

Method of calculation has been established for chillers not able to operate at fixed part load.

Operative ESEER temperatures and coefficients for air cooled and water cooled chillers in Europe:


ESEER parameters
Part Load Ratio
Air temperature (°C) Water temperature (°C) Weighting coefficients
100 3530 3 %
75 30 26 33 %
50 25 22 41 %
25 20 18 23 %

ESEER is calculated as follows:
ESEER = A.EER100% + B.EER75% + C.EER50% + D.EER25%
With the following weighting coefficients:
A = 0.03 ; B = 0.33 ; C = 0.41 ; D = 0.23

Classification of equipment

Programme

Code

Heat rejection

Code

System

Code

Operation

Code

Duct

Code

Compressor

Code

Liquid Chilling Packages

LCP

Air cooled

A

Packaged

P

Cooling only

C

Ducted

D

Centrifugal

C

Water cooled

W

Split

S

Reverse cycle

R

Non Ducted

N

Other

O

Energy efficiency classification

The purpose of Eurovent Energy Efficiency Classes is to simplify the selection of the best units for each type of Chillers. The classification is entirely voluntary, not related to any European Directive.

It is not “labelling”, as no label will be used. The energy efficiency of chillers is designated by “Eurovent Class A” or “Eurovent Class B” in catalogues and in the present Eurovent Directory of Certified products.

Based on existing chillers presented to Eurovent certification the following limits between classes are defined:

 

Cooling Mode
EER Class
Air CooledAir Cooled
ducted
Air Cooled
Floor
Water Cooled
Water Cooled
Floor
Remote Condenser
A≥ 3.1
≥ 2.7≥ 3.8
≥ 5.05
≥ 5.1
≥ 3.55
B 2.9 - 3.1
2.5 - 2.7
3.65 - 3.8
4.65 - 5.05
4.9 - 5.1
3.4 - 3.55
C 2.7 - 2.9 2.3 - 2.5
3.5 - 3.65
4.25 - 4.65
4.7 - 4.9
3.25 - 3.4
D 2.5 - 2.7
2.1 -2.3 3.35 - 3.5
3.85 - 4.25
4.5 - 4.7 3.1 - 3.25
E 2.3 - 2.5
1.9 - 2.1
3.2 - 3.35
3.45 -- 3.85
4.3 - 4.5
2.95 - 3.1
F 2.1 - 2.3
1.7 - 1.9
3.05 - 3.2
3.05 - 3.45
4.1 - 4.3
2.8 - 2.95
G < 2.1 < 1.7
< 3.05
< 3.05 < 4.1
< 2.8

Heating Mode
COP Class Air Cooled Air Cooled
Ducted
Air Cooled
Floor
Water Cooled Water Cooled
Floor
A ≥ 3.2 ≥ 3.0 ≥ 4.05 ≥ 4.45 ≥ 4.5
B 3.0 - 3.2
2.8 - 3.0
3.9 - 4.05 4.15 - 4.45
4.25 - 4.5
C 2.8 - 3.0
2.6 - 2.8
3.75 - 3.9
3.85 - 4.15
4.0 - 4.25
D 2.6 - 2.8
2.4 - 2.6
3.6 - 3.75
3.55 - 3.85
3.75 - 4.0
E 2.4 - 2.6
2.2 - 2.4
3.45 - 3.6
3.25 - 3.55
3.5 - 3.75
F 2.2 - 2.4
2.0 - 2.2
3.3 - 3.45
2.95 - 3.25
3.25 - 3.5
G < 2.2
< 2.0
< 3.3
< 2.95
< 3.25

For “low noise” chillers, the class corresponds to operation with maximum fan speed. The same class is used for lower fan speeds. Classification concerns EER and COP according to EN 14511:2011 at full load operation.
Chiller Selector

Use Chiller Selector to find the appropriate chiller for a given application and to create a report showing performance and purchase information for chillers that meet your specifications. The available chillers are listed in descending order of Energy Efficiency Ratio (EER) value. http://www.thelcon.gr/Selector.aspx http://www.thelcon.gr/Chillers%20Module%20Help%20Guide.pdf

Symbols used in the directory

 Pc Cooling capacity kW 
 Ph Heating capacity for reverse cycle units
kW
 Pe(c) Effective power input in cooling mode
kW
 Pe(h) Effective power input in heating mode
kW
 Dp Water pressure drop
kPa
 Ap Available pressure
kPa
 Lw A-weighted sound power level
 dB(A)
 MPS Main Power Supply
 
 EER Energy Efficiency Ratio
 
 COP Coefficient of Performance
 
 EER  Energy Efficiency Ratio
 
 COP Coefficient of Performance