Daikin EWYE019CZN-A1 handleiding
Handleiding
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D-EIMHP01812-24_00EN 6/47
1.3 Information about the refrigerant
This product contains R454C refrigerant that has a minimal environmental impact, thanks to its low value of Global
Warming Potential (GWP). According to ISO 817, R454C refrigerant is classified as A2L, which is slightly flammable,
since the flame propagation rate is low, and nontoxic.
R454C refrigerant can burn slowly when all the following conditions are present:
• The concentration is between the lower and upper flammability limit (LFL & UFL).
• Wind velocity<propagation of flame velocity
• Energy of the ignition source>Minimum ignition energy
But pose no risk under the normal usage conditions for air conditioning equipment and work environment.
Safety class (ISO 817)
A2L
PED Group
1
Practical limit (kg/m3)
0,059
ATEL/ ODL (kg/m3)
0,445
LFL (kg/m3) @ 60°C
0,293
Vapor density @25°C, 101.3 kPa (kg/m3)
3,78
Molecular mass [g/mol]
90,8
Boiling point (°C)
-46,0 ÷ -37,8
GWP (100 yr ITH)
148,3
GWP (ARS 100 yr ITH)
146
Autoignition temperature (°C)
444
Table 1- Physical properties of R454C refrigerant
1.4 Installation information
The heat pump must be installed in open air or machinery room (location classification III).
To ensure location classification III a mechanical vent on the secondary circuit(s) must be installed.
Local building codes and safety standards shall be followed; in absence of local codes and standards refer to EN 378 3
/ ISO 5149-3 as a guide.
In paragraph “Additional guidelines for safe use of R454C” there are provided additional information that should be added
to the requirements of safety standards and building codes.
Additional guidelines for safe use of R454C for equipment located in the open air
Units sited in the open air shall be positioned to avoid leaked refrigerant flowing into a building or otherwise endangering
people and property.
The refrigerant shall not be able to flow into any ventilation fresh air opening, doorway, trap door or similar opening in
the event of a leak. Where a shelter is provided for refrigerating equipment sited in the open air it shall have natural or
forced ventilation.
For units installed outside in a location where a release of refrigerant can stagnate e.g. below ground, then the installation
shall comply with the requirements for gas detection and ventilation of machinery rooms.
Additional guidelines for safe use of R454C for equipment located in a machinery room
When a machinery room is chosen for the location of the unit it shall be in accordance with local and national regulations.
The following requirements (according to EN 378-3:2016) can be used for the assessment.
• A risk analysis based on the safety principle for a refrigeration system (as determined by the manufacturer and
including the charge and safety classification of the used refrigerant) should be conducted to determine if it is
necessary to install the heat pump in a separate refrigeration machinery room.
• Machinery rooms should not be used as occupied spaces. The building owner or user shall ensure that access
is permitted only by qualified and trained personnel doing the necessary maintenance to the machinery room or
general plant.
• Machinery rooms shall not be used for storage except for tools, spare parts and compressor oil for the installed
equipment. Any refrigerants, or flammable or toxic materials shall be stored as required by national regulations.
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Productinformatie
| Merk | Daikin |
| Model | EWYE019CZN-A1 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 8033 MB |
