Technical data

Precision Air Conditioning
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V
Precision Air Conditioning
Technical Manual : 6258867 F 07/2012
61
Design Data - Chilled Water Models
WATERSIDE PRESSURE DROP (KPA)
200
175
150
125
100
75
50
Waterside Pressure Drop (kPa)
25
9 - 16
50 - 55
41 - 45
35
31
19 - 25
65
80 - 90
95
0
0 1 2 3 4 5 6 7 8 9
Waterflow (l/s)
LOW PRESSURE HOT WATER (OPTIONAL EXTRA)
60
50
40
30
20
Waterside Pressure Drop (kPa)
10
19 - 25
9 - 16
41D – 55D
23D - 35D
65D – 95D
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Waterflow (l/s)
(1) Includes coil, 3 port valve and pipework.
(2) To calculate 3 port valve pressure drop:
DP valve =
2
÷
ø
ö
ç
è
æ
M
Q
where DP = Pressure Drop in kPa, Q = Water Flow Rate in l/s and M =
÷
ø
ö
ç
è
æ
36
Kv
(3) Fluid 100% water, for glycol use, refer to Ethylene Glycol Correction Factors.
M Values
Model Sizes 9 - 16 19 - 35 41 - 45 50 - 65 80 - 95
Chilled Water Valve
0.17 0.28 0.44 0.69 1.11
LPHW
0.17 0.17 0.17 0.17 0.17
CHILLED WATER