LTG HDF-600, Operating, Installation, Maintenance Instructions

Page: 9 / 32

E
LTG Incorporated · PO Box 2889 · Spartanburg, S.C. 29304, USA Chilled beams HDF-us-OM (01/17)
Phone 864 599-6340, Fax -6344 · info@LTG-INC.net · www.LTG-INC.net
Former editions are invalid · Subject to technical modifications
page 9 of 30
Installation, operating and maintenance instructions
Active chilled beams HDF-600, ceiling installation
Continuation 4.2 Performance data
Size 2400, 2-way diffusion, 2-pipe system
V
P
cfm
Δ p
in H
2
O
L
A18
dB(A)
L
wA
dB(A)
Q
P
/ Δ t
BTU/h · Δ t
-1
Q
c
/ Δ t
BTU/h · Δ t
-1
Q
c
1)
BTU/h
W
oc /
Δ p
w
gpm / Ft H
2
O
81 0.28 15 21 87 209 5284
0.75 / 2
98 0.40 20 26 105 243 6232
118 0.60 25 31 125 264 6977
102 0.28 19 25 108 224 5967
123 0.40 23 29 131 251 6824
148 0.60 28 34 158 283 7891
127 0.28 23 29 135 228 6518
154 0.40 27 33 163 260 7592
184 0.60 32 38 196 302 8928
159 0.28 26 32 169 238 7286
192 0.40 31 37 205 272 8531
231 0.60 36 42 245 323 10,176
The chart shows examples for the unit design. A special
selection program is available for other flow rates, pri
­
mary pressures, temperatures and water flow rates.
Data refer to the unit including a secondary air grille
²
63 % free surface
Correction for other flow rates see section 4.3 (Caloric
output data).
1)
Water supply temperature: 61 °F
Air inlet temperature or return air temperature: 79 °F
2)
Water supply temperature: 104 °F
Air inlet temperature or return air temperature: 72 °F
Primary air temperature: 61 °F
V
P
- primary air flow rate ( ± 3%)

p - static pressure at the primary air connection
L
A18
- sound pressure level at 18 m
2
Sabine ( ± 3 dB)
L
wA
- sound power level ( ± 3 dB)
Q
P
- air-side cooling capacity (primary air ± 3 %)
Q
c
- water-side cooling capacity (secondary ± 6 %)

t - temperature difference between air inlet and
water supply
w
oc
- standard water flow rate (cooling)

p
w
- water-side pressure loss