Special Precautions When Dealing With R32 Unit - Daikin Siesta ATXC25AV1B9 Manuel D'installation

SPECIAL PRECAUTIONS WHEN DEALING WITH R32 UNIT

Model
ATXC25AV1B9 - ARXC25AV1B9
ATXC35AV1B9 - ARXC35AV1B9
ATXC50AV1B - ARXC50AV1B
ATXC60AV1B - ARXC60AV1B
Calculation based on Installation Height of 1.8m
*Max. Allowable Length (L), m for:-
ATXC25/35A-ARXC25/35A : 20
ATXC50/60A-ARXC50/60A : 30
• Installation of pipe work shall be kept to a minimum and pipe work shall be protected from physical damage and shall not be
installed in an unventilated space;
• Reusable mechanical connectors and flare joints shall be accessible for maintenance purposes;
Prior to installation, ensure risk of ignition is minimised and avoid working in confined space. Ensure adequate
• When flared joints are reused indoors,the flare part shall be re-fabricated.
• Avoid installation of the air conditioner in a place where there is danger of exposure to continuously operating open flames (for
example an operating electric heaters).
• Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an
industry-accredited assessment authority, which authorises their competence to handle refrigerants safely in accordance with an
industry recognised assessment specification.
• Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of
potentially flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants,
i.e. nonsparking, adequately sealed or intrinsically safe.
• 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
• No ignition sources
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. "No Smoking" signs
shall be displayed.
• The following checks shall be applied to installations:
– 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.
R32 charge, kg for 7.5m Minimum floor area, Xm
piping (based on 7.5m piping)
0.60
0.80
1.10
1.20
! WARNING
ventilation is available by opening windows or doors.
fire extinguisher adjacent to the charging area.
2
2 R32 charge, kg for max
allowable pipe length*
0.34 0.81
0.61 1.01
1.15 1.48
1.37 1.58
1-13
Minimum floor area, Xm 2
(based on max allowable pipe length*)
0.63
0.98
2.10
2.39