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System description/applications ••••••••••••••••••••••••••••••••••••••••••••• 4
COMPACTLINE chilled beams ••••••••••••••••••••••••••••••••••••••••••••••• 5
Information on assembly position •••••••••••••••••••••••••••••••••••••••••••• 6
Design ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7
Technical features •••••••••••••••••••••••••••••••••••••••••••••••••••••••• 10
COMPACTLINE
All legal and technical information was compiled to the best of our knowledge and with
utmost care. Nevertheless, errors cannot be completely excluded and liability for damage
resulting is not assumed. This document and all of its parts are protected under copyright
laws. Any use beyond those exceptions authorized by the copyright law is not permitted
without the consent of the Uponor GmbH. All rights reserved in particular with regard to
reproduction, reprinting, editing, storage, processing in electronic systems, translation and
microfi lming. This document is subject to technical changes without notice.
Copyright 2012
Uponor GmbH, Hassfurt, Germany
4 0 1 / 2 0 1 3
COMPACTLINE — Passive chilled beams for use in commercial buildings
System description/applications
The passive chilled beams (cooling
convectors without supply air) of
the model COMPACTLINE are used
to deal with high heat loads and
for air conditioning of commercial
buildings such as:
Offi ce buildings
Banks
Hotels
Restaurants
Shopping Centres
Production and exhibition halls
The modular construction and
the variable design of the cooling
beams are ideal for both new
buildings and installations in
existing buildings. Chilled beams
are operated with chilled water
in closed circuits and therefore more
effi cient than conventional air-
cycle air conditioning. Passive chilled
beams work on the principle of
free convection (cooled air sinks to
the bottom) and therefore require
no moving parts which could
produce noise. The investment and
operating costs of the chilled beams
are low because of the low cost
of materials and the high capacity
for cooling.
Depending on the space and ceiling
design, the elements can be
installed fl ush with the ceiling or
freely suspended. Chilled beams
Freely suspended COMPACTLINE chilled beams – cleverly integrated from an architectural perspective
Your benefi ts
High cooling capacity
Low investment and operat-
ing costs
Comfortable indoor climate
as opposed to conventional
air conditioning
No dust dispersion
No noise is generated
Low-maintenance
Operating principle of passive chilled beams
can also be used in combination
with chilled ceilings to increase
cooling capacity while still
maintaining the comfort of the
room. The same cold water
temperatures can be used as well.
Operating principle of
COMPACTLINE chilled beams
Passive chilled beams operate
on the basis of the gravity of the
cooled air in the cooling beam,
which slowly sinks down into the
occupied zone and forces the
inflowing warm air toward the
ceiling area. Through the free
convection of the room air and
the correct position of the cooling
beam, tangential air is created
which is necessary for the high
cooling capacity of passive
cooling beam. The effect of the
tangential air is further enhanced
by the slight vacuum that exists
in the chilled beam. The vacuum
created by the cool air in the
cooling beam then sucks in the
warm air from the ceiling area.
Ceiling
Floor
Cooled area
plate-fin heat exchanger
Water inlet
Water outlet
Threaded rods or
wire cables
Inflowing warm
airFree area (open), perforated
plate, expanded metal mesh or
plastic grid (cover)
Case
Building temperature control > Other systems and additions > COMPACTLINE chilled beams
50 1 / 2 0 1 3
COMPACTLINE chilled beams
Design
A COMPACTLINE chilled beam
consists of a white-powder-
coated galvanized steel housing
(different type PAO unpainted,
black optional) with an internal
heat exchanger consisting of
an aluminium lamellae stack and
integrated copper serpentine
pipework. The chilled beams are
available with three different covers.
As a result, the air outlet can be
selected according to architectural
requirements.
Chilled beam with covers and
front plates
Chilled beam with covers and front
plates are mainly used in offi ces.
Detail of a chilled beam - high quality workmanship
Typ PAO – chilled beams without cover and without front plates
Typ PAR – chilled beams with plastic grid mesh panel as coverPlastic grid mesh panel: honeycomb 13 x 13 mm, open area approx. 80%
Typ PAH – chilled beam with perforated plate as a coverPerforated plate: perforation Rv 4-5 - circular perforation mm 0 4, distance 5 mm, staggered perforation, open area approximately 58%
Typ PAS – chilled beams with expanded metal mesh as a coverExpanded metal mesh: mesh 22 / 12 / 2.5 / 1.5 mm, open area approx. 58%
Chilled beam types
Chilled beams without cover and
without front plates
Chilled beams without covers and
front plates are used where they
are either not visible (e.g., above a
ventilated ceiling in support of
cooling ceiling) or where the optics
play a minor role (e.g., freely
suspended in factories).
Here, the installation takes place
either fl ush-mounted or freely
suspended in the room.
Building temperature control > Other systems and additions > COMPACTLINE chilled beams
6 0 1 / 2 0 1 3
Information on assembly position of COMPACTLINE chilled beams
If chilled beams can be positioned
anywhere in the room, then the
distance between the beam and the
concrete ceiling should be at least
one quarter of the beam’s width.
If the chilled beams are positioned
in the vicinity of walls, then the
distance between the beam and the
Due to the sinking cool air, no work
station should be located right
Chilled beam parallel to the opposite warm exterior facade
Open installation under the ceiling Built into the ceiling void with air outlet Installation in closed ceiling fl ow through slots
Chilled beams perpendicular to warm exterior facade
concrete ceiling should be at least
one half of the beam’s width. When
fl ush-mounting (in suspended
ceilings) make sure space is
provided in the sub-ceiling for the
returning air fl ow. This return air
fl ow space (open area for the
slipstream of the air being cooled)
below the chilled beam. Otherwise,
this could lead to thermal
Arrangement under the ceiling
Recommended arrangement in the room
should be at least 30% of the total
cooling surface (L x W of the
chilled beam). The return air fl ow
space can correspond to the
open area in the air permeable
suspended ceiling or the area of
infl owing air circulating inside
the chilled beam.
discomfort of the people in the
immediate vicinity.
B
min.
0.25 x B
min. 2 x B
min.
0.5 x B
B
Building temperature control > Other systems and additions > COMPACTLINE chilled beams
70 1 / 2 0 1 3
Design
Cooling capacity according
to EN 14518
The cooling capacity values of the
COMPACTLINE chilled beams type
PAO and type PAR with a case
height H = 150 mm can be seen in
diagram 1.
The power in watts per meter
(lamellae stack length) is read as a
function of the temperature
difference between the mean water
temperature and the room air
temperature.
Reduction in capacity of the values
read from the diagram for
COMPACTLINE chilled beam types
and designs
Type Case height
[mm]
Capacity reduction
[%]
PAH 150 3
PAS 150 3
PAO 100 13
PAR 100 13
PAH 100 16
PAS 100 16
Cooling c
apac
ity p
er
unit
length
[W
/lf
m]
lam
ellae
sta
ck length
Temperature difference (mean water temperature to room temperature) [K]
0
600
100
300
500
200
400
4 125 6 7 8 9 10 11
Width 605 mm
Width 455 mm
Width 305 mm
Width 155 mm
Diagram 1:
COMPACTLINE type PAO and PAR type with H = 150 mm - cooling capacity per
unit length according to EN 14518
Building temperature control > Other systems and additions > COMPACTLINE chilled beams
8 0 1 / 2 0 1 3
Pressure loss calculation
diagrams
Diagram 2:
Water fl ow rate
Diagram 3:
Pressure loss of the lamellae
stack per lfm [linear meter]
Diagram 4:
Pressure loss of the form parts
of a chilled beam
Wat
er
flow
rat
e [
l/h]
Capacity [W]
0
400
50
100
150
250
350
200
300
Temperature
differential
water
1.0 K
1.5 K
2.0 K
2.5 K
3.0 K
3.5 K
4.0 K
4.5 K
5.0 K
0 1400200 400 600 800 1000 1200
Pre
ssure
loss
[kP
a/lf
m lam
ellae
sta
ck]
Water flow rate [l/h]
Chilled
beam
width
605 mm
455 mm
305 mm
155 mm
50 400100 150 200 250 300 350
0
10
1
2
3
5
7
4
6
8
9
Addit
ional
pre
ssure
loss
[kP
a/beam
]
Water flow rate [l/h]
Chilled
beam
width
605 mm
455 mm
305 mm
155 mm
50 400100 150 200 250 300 350
0
3
0.5
1
1.5
2.5
2
Building temperature control > Other systems and additions > COMPACTLINE chilled beams
90 1 / 2 0 1 3
Diagram 5:
Flow velocity of water in the
copper serpentine pipework
Design example
Requested:
Room air temperature ϑi = 26 °C
Flow temperature ϑVL
= 17 °C
Return fl ow temperature ϑRL
= 19 °C
Case height H = 150 mm
Chilled beam width B = 455 mm
Chilled beam length L = 2,000 mm
Calculation:
Temperature difference Δϑ = Room air temperature ϑi – Medium media temperature
Δϑ = ϑi – (ϑ
VL+ ϑ
RL)/2 = 26 °C – (17 °C + 19 °C) / 2 = 8 K
From diagram 1: specifi c cooling capacity q̇ = 251 W/lfm
Lamellae stack length LP = L – 150 mm = 2,000 mm – 150 mm = 1,850 mm
Cooling capacity of the chilled beam Q = q̇ · LP = 251 W/lfm · 1.85 m = 464 W
From diagram 2: volume fl ow rate V = 200 l/h
From diagram 3: specifi c pressure loss Δp = 2.2 kPa/m
From diagram 4: pressure loss ΔP_form parts = 0.6 kPa/Balken
Total pressure loss ΔP = Δp · LP + ΔP_form parts = 2.2 kPa/m · 1.85 m + 0.6 kPa = 4.67 kPa
From diagram 5: Flow velocity = 0.42 m/s
Results:
Cooling capacity Q = 464 W
Volume fl ow rate V = 200 l/h
Pressure loss ΔP = 4.67 kPa
Flow velocity w = 0.42 m/s
Flo
w v
elo
city
[m
/s]
Water flow rate [l/h]
50 400100 150 200 250 300 350
0
0.8
0.2
0.4
0.6
Building temperature control > Other systems and additions > COMPACTLINE chilled beams
10 0 1 / 2 0 1 3
Material and surface
Case Galvanized sheet steel 1mm
Standard-surface Type PAO - unpainted, optional black
Types of PAH, PAS, PAR - white (RAL 9010) silk matt other RAL colours on request
Standard-dimensions
Case Length L 1.000 to 4.000 mm in 250 mm stages
Width B 155/305/455/605 mm
Height H 100/150 mm (without mounting rail)
Length lamellae stack L minus 150
Assembly details
Copper pipe Outer diameter da = 15 mm, pipe wall thickness s = 1 mm spigot with retaining groove for
plug-in connection.
For chilled beam width of 155 mm - spigot with 90 ° elbows without inward inclination.
For chilled beam widths of 305/455/605 mm - spigots with 90 ° elbows, with 45 ° inward incline
Connection Connection for all types on one side
For chilled beam width of 155 mm - connection to top with angle plug connectors
For chilled beam widths of 305/455/605 mm - connection to top with straight or angle plug connectors.
Suspension Hook profi le, M8 threaded rods or wire suspension
Accessories Flex hoses with straight or angle plug connectors, DN = 15 mm
Recommended water temperature 16 °C
Recommended drop in pressure max. 25 kPa
Recommended fl ow velocity max. 0.6 m/s
Technical features
Operating conditions
Operating weight and
water content
L L1 L2 L3 L4
1000 850 – – –
1250 1100 – – –
1500 1350 – – –
1750 780 820 – –
2000 905 945 – –
2250 1030 1070 – –
2500 1155 1195 – –
2750 1280 1320 – –
3000 950 950 950 –
3250 1035 1035 1030 –
3500 1120 1120 1110 –
3750 1210 1210 1180 –
4000 955 955 955 985
Width in mm Weight in [kg/lfm] Water content
[L/lfm]PAO PAH + PAR PAS
155 4.4 4.9 5.3 0.3
305 7.0 8.0 8.7 0.8
455 8.5 10.0 11.0 1.2
605 9.9 10.5 13.3 1.6
Note:
Condensation must be prevented!
B
A
Detail A Detail B
15 f
or
B =
155,
oth
erw
ise 2
5
40
H
BL
55L2 ... L4L1
95
40
10
25
30 8,5
Bei B = 155 mm
connections vertical
for B = 305, 455, 605 mm
connections 45 ° inclined
Building temperature control > Other systems and additions > COMPACTLINE chilled beams
110 1 / 2 0 1 3
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COMPACTLINE chilled beams
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As an ideal basis for the sustainable,
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groundwater wells.
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For commercial buildings, we have
developed a large geothermal heat
pump, as a ready for connection
power station with its own
integrated hydraulic system:
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simultaneously produces heating
and cooling energy as needed and
is manufactured according to
individual requirements in modular
design ready for connection.
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