Bedienungsanleitung Inventor V6MCRI32-18WiFiR (Seite 32 von 148) (Deutsch, Englisch)

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1. Checks to the area

3. General work area

4. Checking for presence of refrigerant

5. Presence of re extinguisher

If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate

re extinguishing equipment shall be available to hand. Have a dry power or CO2 re extinguisher

adjacent to the charging area.

6. No ignition sources

No person carrying out work in relation to a refrigeration system which involves exposing any pipe

work that contains or has contained ammable refrigerant shall use any sources of ignition in such a

manner that it may lead to the risk of re or explosion. All possible ignition sources, including cigarette

smoking, should be kept sufciently far away from the site of installation, repairing, removing and

disposal, during which ammable refrigerant can possibly be released to the surrounding space. Prior

to work taking place, the area around the equipment is to be surveyed to make sure that there are

no ammable hazards or ignition risks. NO SMOKING signs shall be displayed.

2. Work procedure

All mintenance staff and others working in the local area shall be instructed on the nature of work

being carried out. work in conned sapces shall be avoided. The area around the work space shall

be sectioned off. Ensure that the conditions within the area have been made safe by control of

ammable material.

Prior to beginning work on systems containing ammable refrigerants, safety checks are necessary

to ensure that the risk of ignition is minimised. For repair to the refrigerating system, the following

precautions shall be complied with prior to conducting work on the system.

Works shall be undertaken under a controlled procedure so as to minimise the risk of a

ammable gas or vapour being present while the work is being performed.

The area shall be checked with an appropriate refrigerant detector prior to and during work,

to ensure the technician is aware of potentially ammable atmospheres. Ensure that the leak

detection equipment being used is suitable for use with ammable refrigerants, i.e. no sparking,

adequately sealed or intrinsically safe.

Information Servicing

(Required for the units adopt R32/R290 Refrigerant only)

 Page 33 

9. Checks to electrical devices

the charge size is in accordance with the room size within which the refrigerant containing

parts are installed;

the ventilation machinery and outlets are operating adequately and are not obstructed;

if an indirect refrigerating circuit is being used, the secondary circuits shall be checked

for the presence of refrigerant; marking to the equipment continues to be visible and

legible.

marking and signs that are illegible shall be corrected;

refrigeration pipe or components are installed in a position where they are unlikely to be

exposed to any substance which may corrode refrigerant containing components, unless

the components are constructed of materials which are inherently resistant to being

corroded or are suitably protected against being so corroded.

Repair and maintenance to electrical components shall include initial safety checks and

component inspection procedures. If a fault exists that could compromise safety, then no

electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault

cannot be corrected immediately but it is necessary to continue operation, and adequate

temporary solution shall be used. This shall be reported to the owner of the equipment so all

parties are advised.

Initial safety checks shall include:

that capacitors are discharged: this shall be done in a safe manner to avoid possibility of

sparking

that there no live electrical components and wiring are exposed while charging, recovering

or purging the system;

that there is continuity of earth bonding.

7. Ventilated area

Ensure that the area is in the open or that it it adequately ventilated before breaking into the system

or conducting any hot work. A degree of ventilation shall continue during the period that the work is

carried out. The ventilation should safely disperse any released refrigerant and preferably expel it

externally into the atmosphere.

8. Checks to the refrigeration equipment

Where electrical components are being changed, they shall be t for the purpose and to the correct

specication. At all times the manufacturer s maintenance and service guidelines shall be followed.

If in doubt consult the manufacturer s technical department for assistance. The following checks shall

be applied to installations using ammable refrigerants:

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