54
22.04 – 4139181_04
16 PRESSURE DROPS
SERVICE SIDE - WITHOUT HYDRONIC KIT (00) - HEAT EXCHANGER ONLY
The water flow rate is calculated with the following formula:
Q = Pc x 860 / ΔT
Q
Water flow rate (l/h)
Pc
Cooling capacity (kW)
ΔT
Water heat drop (°C)
Pressure drops are calculated with the following formula:
Δp = K x (Q)2
Δp
Pressure drops (kPa)
Coefficient
for the various sizes and versions
Q
Water flow rate (l/h)
Size
0800
0900
1000
1100
1200
1400
1600
1805
2006
Pressure drops coefficient
Pressure drops coefficient without
hydronic kit
°
3,1690E-08
3,1144E-08
1,7365E-08
1,7056E-08
1,2062E-08
8,0315E-09
8,0408E-09
5,1683E-09
5,0540E-09
A
1,7959E-08
1,1700E-08
1,2488E-08
8,5435E-09
8,3752E-09
5,0319E-09
5,3366E-09
3,8103E-09
4,0125E-09
E
1,3284E-08
1,2671E-08
8,7453E-09
8,9201E-09
5,6364E-09
5,5583E-09
4,2437E-09
4,1883E-09
3,4356E-09
L
1,7959E-08
1,1700E-08
1,2489E-08
8,5435E-09
8,3753E-09
5,0318E-09
5,3366E-09
3,8104E-09
4,0125E-09
N
1,3285E-08
1,2671E-08
8,7452E-09
8,9201E-09
5,6364E-09
5,5582E-09
4,2436E-09
4,1883E-09
3,4356E-09
U
1,3285E-08
1,2672E-08
8,7453E-09
8,9201E-09
5,6363E-09
5,5581E-09
4,2436E-09
4,1883E-09
3,4356E-09
Size
2206
2406
2600
2800
3000
3200
3400
3600
Pressure drops coefficient
Pressure drops coefficient without
hydronic kit
°
5,0511E-09
3,8450E-09
3,7390E-09
3,2605E-09
1,7442E-09
1,7102E-09
1,7328E-09
1,4520E-09
A
3,2813E-09
3,3201E-09
1,7925E-09
1,7767E-09
1,4604E-09
1,4784E-09
1,4525E-09
1,4511E-09
E,U
1,8322E-09
1,7792E-09
1,8315E-09
1,8121E-09
1,5380E-09
1,5345E-09
1,5020E-09
1,4982E-09
L
3,2820E-09
3,3201E-09
1,7925E-09
1,7768E-09
1,4604E-09
1,4784E-09
1,4525E-09
1,4511E-09
N
1,8322E-09
1,7792E-09
1,8315E-09
1,8121E-09
1,5379E-09
1,5345E-09
1,5020E-09
1,4982E-09
Size
0800
0900
1000
1100
1200
1400
1600
1805
2006
2206
2406
2600
2800
3000
3200
3400
3600
System side heat exchanger
Minimum water flow rate
°
l/h
19080
21060
23275
25810
30400
34860
37800
44005
48290
51500
58175
62120
67725
71485
75750
81395
85900
A
l/h
19300
21720
24430
28070
31095
35435
39790
44685
49580
54505
60050
65190
69345
74605
79925
84405
88365
E
l/h
18875
21385
23680
27665
30875
34710
39165
44280
48975
54835
59225
63780
68360
73830
78460
83060
87730
L
l/h
18680
20470
23480
26495
29600
33660
37730
42880
47800
52355
57345
62585
66265
71785
76295
81980
86410
N
l/h
19605
22420
24515
28215
31650
35490
40120
44895
49840
55565
60460
64495
69255
74565
79750
83780
88635
U
l/h
19595
22180
24675
28375
31835
35690
40185
45550
51125
56370
61695
65880
70165
75645
80975
86035
90320
Maximum water flow rate
°
l/h
63600
70200
77583
86033 101333 116200 126000 146683 160967 171667 193917 207067 225750 238283 252500 271317 286333
A
l/h
64333
72400
81433
93567 103650 118117 132633 148950 165267 181683 200167 217300 231150 248683 266417 281350 294550
E
l/h
62917
71283
78933
92217 102917 115700 130550 147600 163250 182783 197417 212600 227867 246100 261533 276867 292433
L
l/h
62267
68233
78267
88317
98667 112200 125767 142933 159333 174517 191150 208617 220883 239283 254317 273267 288033
N
l/h
65350
74733
81717
94050 105500 118300 133733 149650 166133 185217 201533 214983 230850 248550 265833 279267 295450
U
l/h
65317
73933
82250
94583 106117 118967 133950 151833 170417 187900 205650 219600 233883 252150 269917 286783 301067
Inlet water temperature 12 °C
Outlet water temperature 7 °C
External air temperature 35 °C
Average water temperature 10 °C
ATTENTION: For average water temperature different than 10 °C refer to the chapter "Corrective factors for average water temperatures different from nominal values"