CO/Tech MDDG-20DEN7-QA3 User Manual

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ENGLISH
5. Presence of fire extinguisher
If any hot work is to be conducted on therefrigeration equipment or any associated parts
appropriate fire extinguishing equipment shall be available to hand. Have adry powder or CO
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fire 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 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.
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.
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.
9. Checks to electrical devices
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, 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, recoveringor
purging thesystem;
• that there is continuity of earth bonding.

CO/Tech MDDG-20DEN7-QA3 Specifications

General

Brand	CO/Tech
Model	MDDG-20DEN7-QA3
Category	Dehumidifier
Language	English