Daikin EWYT021CZI-A1, Руководство по установке и обслуживанию

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D-EIMHP01505-22_00EN 9/59
The indoor unit is provided with a leak detection system and an integrated emergency fan.
1.5.1.1. Toxicity Requirement (EN 378)
With respect to the toxicity value, the maximum refrigerant quantity is evaluated through the following formula
𝑻 → 𝑴
𝑻
= 𝑇𝑜𝑥𝑖𝑐𝑖𝑡𝑦 𝐿𝑖𝑚𝑖𝑡 𝑥 𝑅𝑜𝑜𝑚 𝑉𝑜𝑙𝑢𝑚𝑒 = 0,3 𝑥 𝐻 𝑥 𝐴
Where:
•
T = Toxicity Requirement Formula
•
M
T
= Reffrigerat Max Quantity [kg]
•
0,3 = R32 Toxicity Limit
•
H = Room Height [m]
•
A = Room Area [m
2
]
If the actual charge of the unit Mr >M
T
the unit shall be installed in a Machinery Room according to EN 378-3.
1.5.1.2. Flammability Requirement (IEC 60335-2-40)
– Not Lowest Underground Floor
If the indoor unit is installed in the lowest underground floor, the maximum refrigerant quantity with respect to the
flammability value shall be evaluated through the following formula:
𝑩 → 𝑴
𝑩
= 𝐶𝐹 𝑥 𝐿𝐹𝐿 𝑥 𝐻 𝑥 𝐴 = 0,23 𝑥 𝐻 𝑥 𝐴
Where:
•
B = Flammability Requirements for not lowest underground floor installation
•
MB = Refrigerant Max Quantity [kg] for nor lowest underground installation
•
CF = Concentration factor (for Not Lowest Underground Floor, CF = 0,75)
•
LFL = Lower Flammability Limit (for R32, LFL = 0,307) [kg/m
3
]
•
H = Room Height (but not more than 2,2 [m])
•
A = Room Area [m
2
]
If the actual charge of the unit Mr >M
B
a safety alarm (Sound+Light) and ventilation (Natural or Forced) shall be
employed in accordance with EN 60335-2-40.
Table 2
– Space requirements: NOT Lowest Underground Floor