Danfoss ATEX, Designation Installation guide

Installation guide

ATEX

Type Designation

ENGLISH

Danfoss Industrial refrigeration standard products are primary designed to be used

148R9541

with common “industrial” refrigerants like ammonia, CO₂, 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 marked and 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 for products containing O-rings, and are 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..)

– All operations must be performed using suitable protective (clothing, gloves, mask…).

– Where a control uses an external energy 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 valve that there is no leakage. 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 undergo any modiﬁcation without prior 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.

148R9541

Info for UK customers only:Danfoss Ltd. Oxford Road, UB9 4LH Denham, UK

Classiﬁcation of Danfoss Industrial Refrigeration products

Product groups - ATEX requirements

Hazardous area

Group

ATEX Equipment group II

“Non-ﬂammable”

refrigerants

(Ammonia, CFC,HCFC,

HFC,CO₂)

Zone 2

Zone 1

Flammable refrigerants

(Propane, Butane,

Iso-butane, Propylene,

ethane)

Zone 0

Zone 2

Zone 1

Table 1

Comments

Zone 0

Component type

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 X X X - X X X -

Filters FIA FIA X X X - X X X Check Valves NRVS X X X - X X X Check Valves NR VA X X X - X X X -

Component which can be used to Ammonia, CO₂, CFC, HCFC, HFC refrigerants and - cannot be mounted with any electrically pilots / equipment and - have no ignition sources

Stop Valves SVA-ST, LT X X X - - - - Regulating Valves - REG REG X X X - - - - Stop Check Valves SCA SCA X X X - - - - Overﬂow valve OFV X X X - - - - Check Valves CHV X X X - - - - -

Float Valves HFI X X X - - - - Float Valves SV X X X - - - - Pilots for ICS Valves CVP, CVPP X X X - - - - Safety Valves SFA X X X - - - - Safety Valves SFV X X X - - - - Safety Valves BSV X X X - - - - Change Over Valves for Safety Valves DSV X X X - - - - Safety Valves POV X X X - - - - -

Component which can be used to Ammonia, CO₂, CFC, HCFC, HFC refrigerants and - can be mounted with electrically pilots / equipment and - have no ignition sources

Main Valves (control valves) ICS 1 ICS 3 X X X - - - - Main Valves (control valves) PM1 PM3 PML PMLX X X X - - - - -

Modulating liquid level regulators PMFH X X X - - - - Pilots for ICS Valves EVM X X X - - - - Electrically operated expansion valve AK VA X X X - - - - Solenoid Valves EVRS X X X - - - - Solenoid Valves EVRA X X X - - - - -

Component with special sealing material for HC-refrigerants ( Probane, Butane, Iso-butane and Propylene) and - can be mounted with electrically pilots / equipment and - have no ignition sources

Main Valves (control valves) ICS 3E - - - - X X X Modulating liquid level regulators PMFHE - - - - X X X -

Modulating liquid level regulators SV3E - - - - X X X Pilots for ICS Valves CVPE-L, CVPE-M - - - - X X X Pilots for ICS Valves CVCE - - - - X X X Pilots for ICS Valves EVME - - - - X X X Safety Valves SFAE - - - - X X X Safety Valves BSVE - - - - X X X -

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 X X X - X X X - Ex II 3 G EEx ia IIC T6 RT-Diﬀerential pressure control RTE X X X - X X X - Ex II 3 G EEx ia IIC T6 RT-Thermostats RTE X X X - X X X - Ex II 3 G EEx ia IIC T6 KPE-Safety pressure control KPE - - - - X X - - Ex II 3 G EEx nL IIC T6

MP 55E-Diﬀerential pressure control MP 55E - - - - X X - - Ex II 3 G EEx nL IIC T6 MBS Pressure transmittere MBS 42xx X X X X X X X X Ex II 1 G EEx ia II T4 - T6 EX Coils BP X X X - X X X - Ex II 2 G EEx m II T4 EX Coils “ “ X X - - X X - - Ex II 3 G EEx nA II T3 Gas detector GD X X X - X X X - Ex II 2 G EEx d IIB + H2 T3 –T6

Category 3

Category 2

Outside catagory / zone

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

Category 1

Outside catagory / zone

Category 3

Category 2

Category 1