Daikin Altherma 3 ECH2O - Page 61

10 Technical data
Installation and maintenance instructions
61
Daikin Altherma EHS(X/H)(B)-D
Heat pump (indoor unit) with integrated heat accumulator
008.1444099_01 – 11/2018 – EN
dm (kg) Minimum area of the ventilation opening
(VA
min
) (cm
2
)
1.07 437
1.00 419
0.93 406
0.88 392
0.82 377
0.77 362
0.72 345
0.67 328
0.62 312
0.58 294
0.53 276
0.49 258
0.45 241
0.41 223
0.37 204
0.34 186
0.30 168
0.26 149
dm (kg) Minimum area of the ventilation opening
(VA
min
) (cm
2
)
0.23 131
0.19 112
0.16 93
0.13 75
0.09 56
0.06 38
0.03 19
Tab.10-25 Minimum area of the ventilation opening
Example: Total refrigerant charge 1.84kg, installation room
15m²
1 From Tab. 10-23: m
c
= 1.84kg
è A
min
= 29m²
è Minimum room size requirement NOT fulfilled, ventilation
opening required
2 Check with Tab. 10-24: A
room
(installation room) + A
room2
(adjacent
room) >= A
min
? If yes, proceed:
3 From Tab. 10-23: A
room
= 15m² -> m
max
= 1.32kg
4 dm = 1.9kg - 1.32kg = 0.58kg
5 from Tab. 10-25: dm = 0.58kg -> VA
min
= 294cm²