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Scope of the programme

This certification programme applies to Forced Circulation Air Cooling and Heating Coils operating:

- with water, +0-50% ethylene glycol or propylene glycol mix, acting as cooling or heating fluid

- without fans.

This programme does not cover the heat recovery applications.

Definitions

Forced circulation air cooling and air heating coils
Tubular heat exchanger, with or without extended surfaces, for use in airflow circulated by fan

Range
Coils designed for one or more applications and having the following identical features:

- Designation

- tube outside diameter

- tube arrangement :

  • pitch height : tube spacing (i.e perpendicular to the air flow)
  • pitch depth : row spacing (i.e in direction of the air flow)
  • tube alignment (in line or staggered)

- arrangement of coil in relationship to the direction of the airflow

- minimum and maximum number of rows

- minimum and maximum number of tubes per row

- minimum and maximum finned length

Testing requirements

Tests shall be conducted in accordance with EN 1216:1998+A1:2002 with the conditions described in the Rating Standard.

Application

SC

tdb

twb

tL

ΔtL

VL

VA

Cooling

1

27

24

7

>5

Avg(1)

Avg(1)

2

27

19

7

>5

Avg(1)

Avg(1)

3

20

10

7

>5

Avg(1)

Avg(1)

4

20

10

7

>5

Min(1)

Min(1)

5

20

10

7

>5

Max(1)

Max(1)

Heating

6

20

 

50

>5

Avg(1)

Avg(1)

7

20

 

50

>5

Min(1)

Min(1)

8

20

 

50

>5

Max(1)

Max(1)

 

(1) Target values for the velocities are specified by Eurovent Certita Certification for each selected unit. The design must be performed so that the effective velocity values do not differ from specified target values by more than 5%.

 

where:

 

tdb

Dry bulb air inlet temperature

°C

twb

Wet bulb air inlet temperature

°C

tL

Fluid temperature entering coil

°C

ΔtL

Fluid temperature difference

K

VA

Air velocity at coil inlet

m.s-1

VL

Fluid velocity

m.s-1

Certified Characteristics

The following performance characteristics, as defined in EN 1216:1998+A1:2002, declared by the applicant/participant shall be verified by tests :

- Total cooling or heating capacity [W]

- Air side pressure drop at standard air density [Pa]

- Fluid (water or brine) side pressure drop [kPa]

General Reference documents


Certification Manual 13th (November 2016)
Reference documents


2016 OM-9


2016 RS-7C005