Danfoss ATEX, Designation Installation guide

Installation guide

ATEX

Type Designation

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ENGLISH

Danfoss Industrial refrigeration standard products are primary designed to be used with common “industrial” refrigerants like ammonia, CO , and halocarbons, however specific valve types can be used to HC refrigerants (flammable).

European Directives

If not specifically mentioned all Industrial Refrigeration valves comply with the relevant European Directives like the Pressure Equipment Directive (97/23/CE).

ATEX directive: (94/9/CE)

The ATEX directive specifies the requirements for equipment intended for use in potentially explosive atmospheres. Danfoss Industrial Refrigeration products have been verified according to this directive.

The products are divided into 3 main groups:

I)Products which are (type) approved to be used in potentially explosive

atmospheres (zone 2, zone 1 or zone 0). (Table 1, group F)

These products are markedand are available with “Certificate of Conformance” acc. ATEX

II)Products which can be used in potentially explosive atmospheres, but are not covered by the scope of the ATEX directive.

(Table 1, group A, B, C and D)

These products are available with “Manufactures Declaration” according to ATEX.

Note: Due to material compatibility specific product type / code no. has to be used for HC refrigerants. (E.g. components with O-rings. see table 1, group D)

III)Products which have an ignition source. These products must not be used in potentially explosive atmospheres. (Table 1, group E)

These products are available with “Manufactures Declaration” according to ATEX.

Installation

General remarks

For safety reasons, the installation must take place under the supervision of an

authorised person taking account of local safety instructions, for flammable fluids, and advisories.

The handling of valves and their controls must be done by staff trained in all technical aspects of their operation. Before installation the pipes must be depressurised and purged (empty of its fluid) in order to avoid any danger to the operator.

In ATEX zone, check that the pipes are connected to the earth (grounded).. Do not use insulating pipes (PVC…)

–Check that the valves are suitable for the actual refrigerant.

Note: Type designation “xxxE”, are used forproductscontainingO-rings,andare suitable for flammable (HC) refrigerants.

–Check that the valves are suitable for the actual zone.

Commission

Before putting valve into operation, check that:

–The working conditions are compatible with the details given on the identification plate , this instruction notice and the manufacturer’s details (technical data sheet, price list catalogue, advisory service).

–All electrical connections have been properly made.

–Installation is tight after the assembly.

Maintenance

–Maintenance and repair work must be carried out by qualified personnel.

–The pipe must be depressurized and purged (emptied of its fluid) in order to avoid any danger to the operator. If the installation has carried fluids which are dangerous in themselves if

in contact with the outside atmosphere (inflammable, corrosive, toxic, explosive..)

–Alloperationsmustbeperformedusing suitable protective (clothing, gloves, mask…).

–Whereacontrolusesanexternalenergy source, it is essential to isolate this source before any operation.

Warning:

When used in an ATEX zone, electrostatic charges may be present inside the valve. The user is responsible for taking all precautions to avoid this risk.

Safety

As well as the indications given in the preceding paragraphs of this notice, it is imperative that the following instructions be followed:

–This notice must be available on site where valves are installed.

–Personnel carrying out any intervention on the valve must be qualified for the task. In ATEX zone, the personnel must be educated in the risks of explosion, and should have received specific ATEX training.

–In case the forwarded media would

be an explosive atmosphere (deliberate internal explosive) or should it cause an explosive atmosphere in case of external leakage, the user must check the tightness of the installation after assembling, after a faulty operation

or on a periodic basis undernormal conditions

–It is the responsibility of the user to check after the installation of the valvethatthereisnoleakage.Especially in case of deliberate internal explosive atmospheres.

–Internal rules and legislation current in the country concerned with respect to health and safety at work must be applied and respected.

–The valve and its control must not undergoanymodificationwithoutprior approval from our advisory service. Danfoss is not responsible for any damage which may be caused by the use of parts, accessories or controls which are not original Danfoss parts

–Hot or cold parts of the valve which present a danger to the operator must be protected.

–In ATEX zone, the valve and its control must be cleaned regularly to avoid the accumulation of dust.

–In ATEX zone do not mount valves at open ends of lines.

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<![endif]>Info for UK customers only:Danfoss Ltd. Oxford Road, UB9 4LH Denham, UK

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Danfoss ATEX, Designation Installation guide

Classification of Danfoss Industrial Refrigeration products		Table 1
Product groups - ATEX requirements	refrigerants	(Propane, Butane,
	“Non-flammable”	Flammable refrigerants Comments
	(Ammonia, CFC,HCFC,	Iso-butane, Propylene,
	HFC,CO )	ethane)

		Hazardous area	<![if ! IE]> <![endif]>Category 3 Zone 2	<![if ! IE]> <![endif]>Category 2 Zone 1	<![if ! IE]> <![endif]>Category 1 Zone 0		<![if ! IE]> <![endif]>Category 3 Zone 2	<![if ! IE]> <![endif]>Category 2 Zone 1	<![if ! IE]> <![endif]>Category 1 Zone 0
		ATEX Equipment group II
<![if ! IE]> <![endif]>Group	Component type	<![if ! IE]> <![endif]>Outside catagoryzone/				<![if ! IE]> <![endif]>Outside catagoryzone/

Component which can be used to all refrigeraqnts

and - cannot be mounted with any electrically pilots / equipment and - have no ignition sources

Stop Valves

SVA-HS, X1

Filters FIA

FIA

Check Valves

NRVS

Check Valves

NRVA

Component which can be used to Ammonia, CO , CFC, HCFC, HFC refrigerants

and - cannot be mounted with any electrically pilots / equipment

and - have no ignition sources

Stop Valves

SVA-ST, LT

Regulating Valves - REG

REG

Stop Check Valves SCA

SCA

Overflow valve

OFV

Check Valves

CHV

Float Valves

HFI

Float Valves

Pilots for ICS Valves

CVP, CVPP

Safety Valves

SFA

Safety Valves

SFV

Safety Valves

BSV

Change Over Valves for Safety Valves

DSV

Safety Valves

POV

Component which can be used to Ammonia, CO , CFC, HCFC, HFC

refrigerants and - can be mounted with electrically pilots / equipment

Note: Only EX approved coils, if any coils are used

and - have no ignition sources

Main Valves (control valves)

ICS 1 ICS 3

Main Valves (control valves)

PM1 PM3 PML PMLX

Modulating liquid level regulators

PMFH

Pilots for ICS Valves

EVM

Electrically operated expansion valve

AKVA

Solenoid Valves

EVRS

Solenoid Valves

EVRA

Component with special sealing material for HC-refrigerants ( Probane,

Butane, Iso-butane and Propylene)

Note: Only EX approved coils, if any coils are used

and - can be mounted with electrically pilots / equipment

and - have no ignition sources

Main Valves (control valves)

ICS 3E

Modulating liquid level regulators

PMFHE

Modulating liquid level regulators

SV3E

Pilots for ICS Valves

CVPE-L, CVPE-M

Pilots for ICS Valves

CVCE

Pilots for ICS Valves

EVME

Safety Valves

SFAE

Safety Valves

BSVE

Component not to be used in hasadas areas

Components in this group has an ignition source

Motor Valves

ICM

Motor Valves

MRV / MEV

Level controls

38E, AKS48

Electronic regulators

EKC 2.., EKC 3..

“Standard” coils

all

Pilots

CVQ, CVPM

Electrically component to be used in hasadas areas

RT-Safety pressure control

RTE

Ex II 3 G EEx ia IIC T6

RT-Differential pressure control

RTE

Ex II 3 G EEx ia IIC T6

RT-Thermostats

RTE

Ex II 3 G EEx ia IIC T6

KPE-Safety pressure control

KPE

Ex II 3 G EEx nL IIC T6

MP 55E-Differential pressure control

MP 55E

Ex II 3 G EEx nL IIC T6

MBS Pressure transmittere

MBS 42xx

Ex II 1 G EEx ia II T4 - T6

EX Coils

Ex II 2 G EEx m II T4

EX Coils

“ “

Ex II 3 G EEx nA II T3

Gas detector

Ex II 2 G EEx d IIB + H2 T3 –T6

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