Friedrich ZoneAire Premier ZHV16DA handleiding

Airco

Friedrich

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Handleiding

propriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO 2 fire

extinguisher adjacent to the charging area.

1.6 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 flammable refrigerant shall use any sources of ignition

in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources,

including cigarette smoking, should be kept sufficiently far away from the site of installation,

repairing, removing and disposal, during which flammable 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 flammable hazards or ignition risks. “No Smoking” signs

shall be

displayed.

1.7 Ventilated area

Ensure that the area is in the open or that it is 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.

1.8 Checks to the refrigeration equipment

Where electrical components are being changed, they shall be fit for the purpose and to the

correct specification. 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 flammable refrigerants: 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 circuit shall be checked for the presence of

refrigerant; marking to the equipment continues to be visible and legible. Markings 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.

1.9 Checks to electrical devices

Repair and maintenance of 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, an 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.

Every working procedure for maintenance, service and repair operations that affects safety means

shall only be carried out by competent persons according to Annex HH (competence of service

personnel by training, this training is carried out by national training organizations that are

accredited to teach the relevant national competency standards that may be set in legislation. The

achieved competence should be documented by a certificate).

All the work men who are engaging in the refrigeration system should bear the valid certification

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