Chilled Beam Design Guide - TROX

Sensible Cooling Capacity, BTUH/LF
PRIMARY AIR COOLING SECONDARY (WATER) COOLING
TOTAL SENSIBLE COOLING
Cooling Performance (2-Pipe) DID602
1600
1500
1400
Chart is based on 6 ft. DID602-HC-2 (2
pipe) cooling with a 20˚F temperature
differential between room and primary air
and an 18˚F temperature differential
between room and entering chilled water.
For other beam lengths, see the
correction factors table below.
GPM CWS
1300
Performance at water flow rates > 1.5
GPM is only achievable with DID602-HC
models.
3.0
2.5
2.0
1200
1.5
GPM CWS
1.0
1100
1000
900
800
700
GPM CWS
3.0
3.0
2.5
2.0
1.5
1.0
2.5
2.0
1.5
1.0
0.8
0.6
0.4
0.8
0.6
0.4
0.3
0.2
0.8
0.3
600
0.6
0.4
0.2
500
0.3
400
0.2
300
NC22
"C" NOZZLES
25 30 35 39
200
0.3" 0.4" 0.5"
0.6" 0.7" 0.8" 0.9" 1.0"
100
0
4.0
NC 20 25
0.3" 0.4" 0.5" 0.6"
30 34
"B" NOZZLES
0.7" 0.8" 0.9"1.0"
NC 15 20 25
"A" NOZZLES
0.3" 0.4" 0.6" 0.8" 1.0"
6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0
30.0
Primary Airflow Rate, CFM/LF
Corrections for Other DID602-US-2 or DID602-HC-2 Lengths & T INDUCED AIR - T ENTERING WATER
Performance Parameter
Sensible Cooling (BTUH/LF)
Max. Recommended GPM (DID602-US-2 models)
Max. Recommended GPM (DID602-HC-2 models)
Noise Level (NC)
Primary Air Pressure Drop
Chilled Water Pressure Loss
T INDUCED AIR - T ENTERING CHILLED WATER
Beam Length (Nominal Length in Feet)
4 Feet 6 Feet 8 Feet
10 Feet
Multiply by 1.03 No Correction Multiply by 0.91 Multiply by 0.90
1.35 1.15 1.0
0.9
2.65 2.25 2.0
1.8
-5 No Correction +3
+4
Multiply by 0.85 No Correction Multiply by 1.03 Multiply by 1.15
See Figure 37 (DID602-US-2) or Figure 39 (DID602-HC-2)
See Table 6 (page 38)
Figure 46: Cooling (2 Pipe) Performance, DID602-US-2 and DID602-HC-2
45