TCB-RB - TROX

T 2.4/8.1/B/1
Passive
Chilled Beams
Type TCB-RB
TROX UK Ltd
Caxton Way
Thetford
Norfolk IP24 3SQ
Telephone +44 (0) 1842 754545
Telefax +44 (0) 1842 763051
e-mail trox@troxuk.co.uk
www.troxuk.co.uk

Contents · Description
Contents · Description __________________________ 2
Construction · Dimensions _______________________ 3
Installation · Assembly __________________________ 4
Nomenclature · Example ________________________ 5
Quick Selection 1 row coil _______________________ 6
Quick Selection 2 row coil _______________________ 7
Technical Data 1 row coil ________________________ 8
Technical Data 2 row coil ________________________ 9
Technical Data Air Boot _________________________ 10
Order Details __________________________________ 11
Type TCB-RB
Type TCB-RB-S
Description
Passive chilled beams are a very simple yet effective cooling
device, used for dissipation of high internal heat loads. They
offer low investment costs ideal for refurbishment or new build
projects.
The absence of any moving parts, and the use of quality
materials in the construction of this product offers a silent,
low maintenance cooling solution.
TROX type TCB-RB beams are suitable for mounting within a
ceiling void above a perforated ceiling tile or can be freely
suspended.
Using water as a cooling medium, TROX passive chilled beams
provide energy benefits over traditional cooling systems.
Caution!
The chilled water flow temperature should be selected
so as to avoid operation below dew point.
2

Construction · Dimensions
Construction
TROX TCB-RB passive chilled beam comprises a cooling
coil & casing with return edges, which provide mounting points
suit able for Ø 8 mm drop rods or suitable wire supports.
For lower free area ceilings (< 40%) TROX TCB-RB-S should be
used. The flexible PVC skirt material is mechanically fixed to
bottom of casing providing directional control of discharge air
through ceiling into occupied zone.
Materials
Casing is galvanised steel sheet, cooling coil manufactured from
high grade copper pipework with self finish aluminium fins.
Flexible skirt is made from high quality plasticized PVC polymer
direct coated onto both sides of polyester substrate.
Standard casing surface finish of TCB-RB units is black (RAL
9005) powder coat, coil natural finish. Other RAL colours are
available on request.
Dimensions in mm
L 1 (mm) L 2 (mm) B (mm) W (mm) H (mm)
1200
4500
1200 258 300 200
1500 309 351 250
1800 360 402 300
2100 410 452
2400 461 503
2700 512 554
3000 563 605
614 656
Casing
PVC Skirt
Coil flow and return water connections
(Ø 15 mm plain copper tube)
Support flange
Airboot Plenum
Type TCB-RB beams can be supplied in various lengths in
100 mm increments.
L 1
L 2
= Total beam length
= Airboot plenum length
B = Coil width
W = Overall width
H 1 = Overall height
3

Installation · Assembly
For the convection process to occur, it is essential that the air
to be cooled can flow unhindered into the coil. The optimum
condition for this is when distance Z – lower edge of ceiling slab
to upper edge of beam is as large as possible (ideally Z W/2).
It is also important to allow return air to enter the ceiling void.
The return air path free area should be equivalent to the coil
area and be split equally either side of the chilled beam. For
example, if a perforated ceiling with a 50% free area is on the
return air path, then the perforated area should be equal to twice
the width x length of the coil.
TROX TCB-RB chilled beams are provided with Ø10 mm holes,
pre-punched within the top flange.
The chilled beams can be suspended from the slab with
threaded rod or suitable suspension wires.
Beam Weight
Beam Type Weight (kg/m)
TCB-RB / RB-S 15
Airboot 5
TCB-RB mounting detail
L
1 = 1200 mm up to 2999 mm
L 1 = 3000 mm up to 4500 mm
Coil Connection Detail
Horizontal connection
Vertical connection
4

Nomenclature · Example
Nomenclature
V WK in l/hr: Water volume flow rate, cooling
Q WK in W: Water cooling capacity
q WK in W/m: Specific cooling capacity per m
W/m²: or per m²
t WV in °C: Chilled water flow temperature
t WR in °C: Chilled water return temperature
t WM in °C: Chilled water mean temperature
t R in °C: Maximum room air temperature
t W in K: Temperature difference between water
flow and return temperature
t RW in K: Temperature difference between max.
room air temperature and mean chilled
water temperature
V in m/s: Maximum time averaged air velocity
measured
approx. 1 m below passive chilled beam
B in mm: Width of cooling coil
H in mm: Passive beam stack height
fo in %: Ceiling free area underneath the TCB-RB
Z in mm: Return air gap above beam
K Z/W
Correction factor for Z /W ratio
K fo
Correction factor for airflow % free area
p W in kPa: Water pressure drop
Reference Values
t WV = 16 °C Chilled water flow temperature
t WR = 18 °C Chilled water return temperature
t R = 27 °C Room air temperature
t RW = 10 K Temperature difference between room
air temperature and mean chilled water
temperature
Z/W = 0.5 Ratio of clear height against coil width
Example
Room size: 3 m x 6 m
Room height: 2.8 m
Suspended ceiling: 45% free area
Ceiling void: 400 mm
t R 24 °C
t WV 14 °C
t WR 17 °C
t RW 8.5 K
q WK 60 W/m²
60 x 3 x 6 = 1080 W
Q WK
The architect has specified a row of units maximum 6 m
along the centre line of the room (2 x 3 m)
Room sketch
Diagrams I…III (see page 8)
Coil width (B): 410 mm
Unit height (H): 250 mm
Unit length (L 1 ): 3000 mm Q = 550 W
For installation behind a perforated ceiling 45%,
correction factor K fo must be applied.
K fo : 0.99 Q = 550 W x 0.99 = 544 W
Diagrams IV and V
At a differential between water flow and return temperature
of 3 K, the water flow rate V W = 156 l/hr. Since the water flow
rate is greater then the nominal water flow rate of 110 l/hr,
a correction factor K W = 1.07 is applied to the calculated
capacity
Q = 544 W x 1.07 = 582 W
Diagram VII
For installation within a ceiling void, correction factor K Z/W
must be applied.
Z
B
= (400-250) = 0.36
410
K Z/W : 0.97 Q = 582 W x 0.97 = 565 W
For the room as planned with 2 chilled beams units
3000 mm long, the available overall cooling capacity is:
Q WK = 2 x 565 W = 1130 W
Diagram VII
Waterside pressure drop.
p w = 0.7 x 3 m = 2.1 kPa
Diagram VIII
The air velocity 1 m below the chilled beam will be between
0.17 and 0.23 m/s.
NOTE: If required cooling output cannot be achieved with
a 1 row coil, repeat above steps with diagrams on page 9.
5

Quick Selection
1 row coil
Note: Diagram VIII on page 8 shows the maximum time
averaged air velocity measured approximately 1m below the
passive beam as a function of the output per linear meter.
Cooling capacities below should be selected in line with the
required comfort conditions and are subject to corrections by
using the appropriate diagrams on page 8.
Cooling capacity (W/m) at t RW = 10 K Z/W ~ 0.5
1 Row
W =
258 mm,
Z =
130 mm
W =
309 mm,
Z =
150 mm
W =
360 mm,
Z =
180 mm
W =
410 mm,
Z =
200 mm
W =
461 mm,
Z =
230 mm
W =
512 mm,
Z =
250 mm
W =
563 mm,
Z =
280 mm
W =
614 mm,
Z =
300 mm
H (mm) fo 1) 50 % 50 % 50 % 50 % 50 % 50 % 50 % 50 %
150 142 161 185 207 227 247 260 276
200 149 170 194 218 241 260 274 290
250 157 179 204 230 258 273 288 305
300 164 188 213 241 270 286 302 319
Cooling capacity (W/m) at t RW = 8 K Z/W ~ 0.5
1 Row
W =
258 mm,
Z =
130 mm
W =
309 mm,
Z =
150 mm
W =
360 mm,
Z =
180 mm
W =
410 mm,
Z =
200 mm
W =
461 mm,
Z =
230 mm
W =
512 mm,
Z =
250 mm
W =
563 mm,
Z =
280 mm
W =
614 mm,
Z =
300 mm
H (mm) fo 1) 50 % 50 % 50 % 50 % 50 % 50 % 50 % 50 %
150 114 131 148 168 188 199 210 221
200 120 138 157 176 198 209 221 233
250 127 146 165 186 208 220 233 245
300 133 153 173 194 218 230 244 257
Cooling capacity (W/m) at t RW = 7 K Z/W ~ 0.5
1 Row
W =
258 mm,
Z =
130 mm
W =
309 mm,
Z =
150 mm
W =
360 mm,
Z =
180 mm
W =
410 mm,
Z =
200 mm
W =
461 mm,
Z =
230 mm
W =
512 mm,
Z =
250 mm
W =
563 mm,
Z =
280 mm
W =
614 mm,
Z =
300 mm
H (mm) fo 1) 50 % 50 % 50 % 50 % 50 % 50 % 50 % 50 %
150 100 114 130 147 165 175 184 195
200 105 120 137 155 174 184 194 206
250 111 127 144 163 183 194 204 216
300 116 133 151 171 192 203 214 227
1)
fo: ceiling free area underneath the TCB-RB
6

Quick Selection
2 row coil
Cooling capacity (W/m) at t RW = 10 K Z/W ~ 0.5
2 Row
W =
360 mm,
Z =
180 mm
W =
410 mm,
Z =
200 mm
W =
461 mm,
Z =
230 mm
W =
512 mm,
Z =
250 mm
W =
563 mm,
Z =
280 mm
W =
614 mm,
Z =
300 mm
H (mm) fo 1) 50 % 50 % 50 % 50 % 50 % 50 %
150 223 271 328 368 408 448
200 235 286 345 387 429 472
250 247 301 363 407 451 496
300 259 316 380 426 472 520
Cooling capacity (W/m) at t RW = 8 K Z/W ~ 0.5
2 Row
W =
360 mm,
Z =
180 mm
W =
410 mm,
Z =
200 mm
W =
461 mm,
Z =
230 mm
W =
512 mm,
Z =
250 mm
W =
563 mm,
Z =
280 mm
W =
614 mm,
Z =
300 mm
H (mm) fo 1) 50 % 50 % 50 % 50 % 50 % 50 %
150 166 205 248 278 311 342
200 175 216 261 293 327 360
250 184 227 274 308 344 379
300 193 238 287 323 360 397
Cooling capacity (W/m) at t RW = 7 K Z/W ~ 0.5
2 Row
W =
360 mm,
Z =
180 mm
W =
410 mm,
Z =
200 mm
W =
461 mm,
Z =
230 mm
W =
512 mm,
Z =
250 mm
W =
563 mm,
Z =
280 mm
W =
614 mm,
Z =
300 mm
H (mm) fo 1) 50 % 50 % 50 % 50 % 50 % 50 %
150 137 171 208 235 261 290
200 144 180 219 247 275 305
250 152 189 230 260 289 320
300 159 198 241 272 303 335
1)
fo: ceiling free area underneath the TCB-RB
7

Technical Data
1 row coil
I
II
III
Δ
IV
V
Δ
Δ
Perforated plate
correction factor K fo
Free area fo
in %
K fo
30% 0.94
35% 0.96
40 % 0.98
45 % 0.99
50 % 1
VI
VII
VIII
Δ
8

Technical Data
2 row coil
I
II
III
Δ
IV
V
Δ
Δ
Perforated plate
correction factor K fo
Free area fo
in %
K fo
30% 0.94
35% 0.96
40 % 0.98
45 % 0.99
50 % 1
VI
VII
VIII
Δ
9

Technical Data
Airboot
Description
TROX trickle vent airboot plenum (TCB-AIR) is a 2 nd fix plenum
assembly that can be installed on either side of the TCB-RB
passive chilled beam range.
The airboot plenum assembly is designed to deliver fresh air
into the space with a side entry air spigot connection.
The fresh air is delivered along the length of the plenum via an
integral balancing plate with a very low pressure drop.
Construction / Assembly
TROX TCB-AIR plenum assembly is made from galvanised steel
sheet.
Flexible skirt is made from high quality plasticized PVC polymer
direct coated onto both sides of polyester substrate.
Standard casing surface finish of TCB-AIR unit is black
(RAL 9005) powder coat. Other RAL colours are available on
request.
To achieve comfort conditions within the occupied space, it is
recommended that the ventilation air is discharged at isothermal
conditions when airboot plenum is used. If this can not be achieved,
extra attention should be given to maintaining low discharge
velocities.
Airboot performance
L 2 (mm) Airflow (l/s) p (Pa)
1200 14 2
1500 18 3
1800 22 3
2100 25 4
2400 28 6
2700 32 7
3000 36 8
10

Order details
Specification text
Type TCB-RB passive chilled beam is used to dissipate high
internal heat loads using chilled water.
Materials
Casing is galvanised steel sheet, cooling coil manufactured from
high grade copper pipework with self finish aluminium fins.
It comprises a casing, manufactured from galvanised steel with
integrated mounting points for threaded rod or suspension wire
supports.
Cooling coil has high grade copper tubes with formed aluminium
fins promoting efficient transfer of heat energy from the room to
the cooling medium.
Flexible skirt is made from high quality plasticized PVC polymer
direct coated onto both sides of polyester substrate.
Standard casing surface finish of TCB-RB units is black (RAL
9005) powder coat, coil natural fin. Other RAL colours are available
on request.
Order code
TCB-RB – UK – 00 – S / 3000 x 450 x 200 / 2H – 1 – N / P4 / RAL 9005 / 20 %
1 2 3 4 5 6 7 8 9 10 11 12 13
1 – TYPE
2 – MARKET
- UK
- USA
3 – NOT USED
4 – SKIRT
- 0 [No Skirt]
- S [Skirt]
5 – BEAM LENGTH (L 1 )
- 1200 – 4500
6 – COIL WIDTH (W)
- 207
- 258
- 309
- 360
- 410
- 461
- 512
- 563
- 614
7 – STACK HEIGHT (H)
- 200
- 250
- 300
8 – COIL ROWS
- 1V [1 Row Vertical Connections]
- 1H [1 Row Horizontal Connections]
- 2V [2 Row Vertical Connections]
- 2H [2 Row Horizontal Connections]
9 – COIL CIRCUITS
- 1 [Single Hydraulic Circuit]
- 2 [Twin Hydraulic Circuit]
10 – COIL FINISH
- N [Natural Finish]
- B [Black Finish Coil]
11 – CASE FINISH
- P4 [Std. Finish – RAL 9005 – 20 %]
- P6 [Powder Coat Finish – RAL XXXX-XX %]
12 – COLOUR
For P6 only
- RAL... [Specify RAL colour]
12 – GLOSS LEVEL
For P6 only
- ...% [Specify Gloss Level]
TCB-AIR – UK – 00 – S / 3000 x 200 / P4 / RAL 9005 / 20 %
1 – TYPE
2 – MARKET
- UK
- USA
1 2 3 4 5 6 7 8 9
3 – NOT USED
4 – SKIRT
- 0 [No Skirt]
- S [Skirt]
5 – AIRBOOT LENGTH (L 2 )
- 1200
- 1500
- 1800
- 1800
- 2100
- 2400
- 2700
- 3000
6 – STACK HEIGHT (H)
- 200
- 250
- 300
Order example
Manufacture: TROX UK Ltd.
Beam type: TCB-RB-UK-00-S / 3200 x 563 x 250 / 2V-2-N / P4 / RAL 9005 / 20%
Airboot type: TCB-AIR-UK-00-S / 2400 x 250 / P4 / RAL 9005 / 20 %
7 – CASE FINISH
- P4 [Std. Finish – RAL 9005 – 20 %]
- P6 [Powder Coat Finish – RAL XXXX-XX %]
8 – COLOUR
For P6 only
- RAL... [Specify RAL colour]
9 – GLOSS LEVEL
For P6 only
- ...% [Specify Gloss Level]
Subject to change · All rights reserved © TROX UK Ltd (3/2012)
11