16
Zehnder ZIP Radiant Ceiling Panels
Zehnder ZIP Radiant Ceiling Panels
The sun radiates warmth and light. Its
thermal radiation is only effective when its
rays shine on an object. The air is therefore
not warmed directly. Even when the air is
very cold it is possible to feel warm in the
sun. The decisive factors for our personal
thermal comfort are the average values of
the ambient temperature and those of the
surrounding surfaces.
Zehnder ZIP radiant ceiling panels for
heating applies this natural principle. The
perceived temperature is about 3° C higher
than the air temperature, resulting in comfort
at a lower room temperature.
Zehnder ZIP radiant ceiling panels
reduce costs. Heated by hot water, mainten-
ance is minimal and service life is unlimited,
saving energy and money. Zehnder ZIP radi-
ant ceiling panels create healthy warmth.
They operate without causing air movement
and consequently do not swirl dust about.
This in turn assists in the prevention of aller-
gies and illnesses.
Range of Application: Rooms from 3 m
to 30 m high, such as production and stora-
ge facilities, workshops, sports halls, gara-
ges, sales rooms, shipyards, maintenance
shops, damp locations, etc.
Zehnder is Europe’s leading supplier
of radiant ceiling panels, with decades of
invaluable experience.
The Sun – a masterpiece!
Zehnder ZIP radiant ceilingpanel.
� 2 3 �
Excellent Technology.
Zehnder creates an entirely new
system: Zehnder ZIP Radiant Ceiling
Panels. The many advantages are:
• Optional connection method: threaded or
press fit connections. No welding requi-
red. This simplifies installation and facilita-
tes easy system extension when premises
are enlarged.
• Lightweight. Easy to assemble and install.
• Installation-compatible. Shorter installati-
on time means reduced costs.
• High heat emission (tested in accordan-
ce with EN 14037). The efficient heat
transfer design of the Zehnder ZIP radiant
ceiling panels ensure the highest possible
heat output, further reducing costs.
• n Modular construction: 2,3,4,5 and 6m
lengths. The unique, modular concept of
the Zehnder ZIP radiant ceiling panel
system offers the right solution for any
installation situation. For the very first
time, modules can be arranged end to end
or side by side, as required.
• Easy to store. Only one module width –
320 mm – uses storage space effectively.
• Flexible, straightforward fastening
system. Simplifies installation as well as
reconfiguration or extension.
• Attractive slimline appearance, with 15
mm. Diameter tubes.
• Rapid reaction time. Thanks to low
storage mass and low water content.
• Corrosion prevention. The Zehnder ZIP
radiant ceiling panels are corrosion inhibi-
ted. The relevant test was carried out in
accordance with DIN 50017 ”Condensati-
on Water Test Atmospheres“.
• Special version for damp locations.
Zehnder ZIP radiant ceiling panels are
suitable for washrooms, HGV washing
bays, butchers’ premises, etc.
triple 1088 mm
64
320320
64 320
double 704 mm
64
320320
single
320
quadruple 1472mm
64
320320
64 32032064
6000 mm Basic element ZIP L60
2000 mm
Basic element ZIP L20
3000 mm
Basic element ZIP L30
4000 mm
Basic element ZIP L40
5000 mm Basic element ZIP L50
Zehnder ZIP
Radiant Ceiling
Panels.
Overall Widths.
� 4 5 �
Outstanding Down to the
Last Detail.
The Material. Zehnder ZIP radiant
ceiling panels are made from 0.5 mm-thick
sheet steel with Zehnder special clip profi-
ling. Each one accommodates four precision
steel tubes and the top-surface insulation.
Folded side flanges and galvanised box-sec-
tion crossbars stiffen the steel sheeting, and
provide mounting for suspension. Two
sheet-metal end elements close off the ends
of the radiant panels.
The outside surface is polyester coa-
ted. The inside surface is coated with a pro-
tecting lacquer.
The four clip-retained precision steel
tubes are welded and sized in accordance
with DIN 2394/C. The pipe ends are chamfe-
red for the use of threaded or compression-
type couplings. They thereby ensure maxi-
mum and constant heat transfer.
The Headers. Round tubing with a
diameter of 32 mm. The headers and collec-
tors are fitted with an externally threaded
connecting boss, and an oppositely located
sleeve as vent/drain. The various header
configurations permit customised panel
connections.
Installation Method. Zehnder sup-
plies the modules ready-to-install in lengths
of 2, 3, 4, 5 and 6 metres and a width of 320
mm. The individual modules can be joined
together with the Zehnder threaded cou-
plings or alternative Zehnder press fittings,
making the job simple and quick.
Simple, clip-on cover plates then con-
ceal the joints. The headers are fixed to the
modules during installation, with the threa-
ded couplings. The panels are suspended
with chain hanging sets fixed directly to the
integral suspension bars, or if several paral-
lel modules are installed, by using a multiple
suspension bar with only two chain hanging
sets per suspension bar.
Zehnder ZIP radiant ceilingpanels with the variousconnecting systems.
Details of clamp ring-type threadingcoupling
Details of press fittings
� 6 7 �
Compression fitting
Multiple suspension bar
8-tube header /collector
Precision steel tube
Clamp ring-type threaded coupling
Cover plate
Suspension bar
4-tube header withconnection boss
q=K·∆tn
K=2,0805 K=0,2456n=1.1489 n=1.3524
70 274 7768 265 7466 256 7164 247 6862 238 65
60 230 6258 221 6056 212 57
55 208 55
54 203 5452 195 51
80 320 9278 310 8976 301 8674 292 8372 283 80
40 144 3638 136 3436 128 3134 120 2932 112 27
30 104 2428 96 2226 88 2024 80 1822 73 16
50 186 4948 178 4646 169 4444 161 4142 152 39
∆t in K Zehnder ZIP 1 in W/m Collector pair in W
Tube spacing mm 80
Designation/Version Units Zehnder ZIP 1
Cooling capacity ZIP 1 watt/ 36at ∆t = 10 K metre run
Cooling capacity ZIP 1 watt/ 42without thermal insulation metre runat ∆t = 10 K
Operating weight of RCP kg/m 4.70with water content and insulation
Tube outside diameter mm 15
Overall width of RCP mm 320
Number of suspensions No. off 2per bar
Heat output of RCP watt/ 208Heat output tested as per metre runEN 14037 (standard super-seding DIN V 4706 parts 1 and 2)
Technical Data.
Zehnder ZIP Radiant Ceiling Panels.
• For ZIP 2/ZIP 3/ZIP 4 the performance
figures can be multiplied accordingly.
• Maximum operating temperature: 95°C.*
• Maximum operating pressure: 5 bar.*
*Higher operating temperatures and pressures available on request.
Accessories.
• Fastening Systems
Complete Installation Kits
• Insulation
Thermal insulation material cut to width
of radiant ceiling panels, supplied in rolls.
Heat Emissions
(as per EN 14037).
The Zehnder ZIP radiant ceiling panels offer numerousconnection options. Here areonly a few examples.
Cooling capacity collector watt/ 10pair at ∆t = 10 K collector
pair
ReturnFlow
Diverter
Flow
Return
Return
Flow
A
AA
B
Return
Flow
Return
Flow
Diverter
Diverter
AA
A
C
Flow
Diverter
Return
AB
Zehnder ZIP Radiant Ceiling Panels.
Water connection options.
� 8 9 �
� 10 11 �
12
13
3
3
*
1111
12
133
4
Zehnder ZIP Radiant Ceiling Panels.
Suspension Systems.
Installation Kit KN 53. Fastening to concrete ceiling with steel drive anchors,eye bolts and spring hooks.
12
11
12
Fastening to multi-suspension bars withspring hooks and knotted-link chain
Installation Kit KN 54. Fastening to steelsection with eye bolts and spring hooks.
ZIP L20 2 off
ZIP L30 2 off
ZIP L40 2 off
ZIP L60 3 off
ZIP L50 3 off
Quantity of multiple suspension bars per module
11
12
13
8
3
*
11
12
13
14
5
3
6
*
3
6
11
12
13
15
7
5
*
Installation kit KN 56. Fastening to trape-zoidally formed sheet steel mounting mem-ber with trapezoidally formed suspensionelement, eye bolts and spring hooks.
Installation kit KN 57. Fastening to incli-ned steel girders with carrier clamps, eyebolts and spring hooks.
3 Hexagon nut, M84 Steel drive anchor, M 85 Carrier clamp, M 86 Securing clip7 Flat leaf screw, M 88 Trapezoidally formed suspension
element, M 8
11 Knotted-link chain, K 2212 Spring hook13 Eye bolt14 Plain washer15 Hexagon head screw, M 8 x 40
* provided by customerAll individual components galvanised.
Installation kit KN 58. Fastening to hori-zontal steel girders with carrier clamps, eyebolts and spring hooks.
Knotted-link chain
Spring hook
Multi-suspension bar
Spring hook
Zehnder ZIP Radiant Ceiling Panels.
Tendering Text.
Zehnder ZIP radiant ceiling panel
made of 0.5 mm sheet steel Sendzimir-gal-
vanised on both sides, with Zehnder special
clip profiling to accommodate four 15 mm
precision steel tubes as per DIN 2394/C.
Outside surface of radiation panel coated
with polyester lacquer similar to RAL 9016,
opposite side with protecting lacquer. Suita-
ble for operating temperatures up to 95°C,
maximum operating pressure 5 bar.
The sheet steel of the panel is rende-
red statically self supporting by folded side
and top flanges. The flanges also accommo-
date and retain the insulation. Two sheet-
steel end elements close off the radiant
panel.
A panel can be attached directly to the
integral suspension bars in a fixed grid
arrangement or, if several are arranged in
parallel, by using a common multi-suspensi-
on bar with only two points for fixing to the
ceiling.
The 32 mm diameter tubular headers
are furnished with a 1”externally threaded
connection boss, blank cover and an oppo-
sitely located 1/2“ sleeve as vent/drain. The
headers/collectors are supplied loose and
are installed on site. They are connected to
the panel or the panel modules by tightening
the threaded couplings.
The 320 mm-wide modules are sup-
plied ready-to-install in lengths of 2,3,4,5 or
6 metres according to requirements. The
individual modules are joined with threaded
or press fit connectors. The joins are con-
cealed with clip fit, lacquer-finished, cover
plates.
The Zehnder ZIP radiant ceiling panels
are protected against corrosion. The rele-
vant test was carried out in accordance with
DIN 50017 ”Condensation Water Test
Atmosphere“.
There is also a version especially for damp
locations. This includes fitted Stryrodur insu-
lation with a galvanised top cover added on
site.
Manufacturer: Zehnder
Type: Zehnder ZIP
Radiation Ceiling Panel
� 12 13 �
Design Temperatures:
Heating medium PWW ......... /.......... °C
Ambient temperature ..................... °C
Thermal output (overall) ..................... W
Module length (overall) ..................... m
Thermal Insulation:
Thermal insulation is fitted on site.
..................... m
Compression Coupling:
Galvanised compression fittings, 15 mm
..................... off
Threaded Coupling:
Galvanised clamp-ring coupling, 15 mm
..................... off
Cover Plates:
Made of 0.5 mm sheet steel Sendzimir-
galvanised on both sides, polyester-lacque-
red similar to RAL 9016 on external surface,
for covering the compression or threaded
couplings ..................... off
Fastening Methods:
• Installation kit KN 53 for fastening to con-
crete ceilings ..................... off
• Installation kit KN 54 for fastening to steel
section ..................... off
• Installation kit KN 56 for fastening to
trapezoidally formed sheet steel
..................... off
• Installation kit KN 57 for fastening to
tilted steel girders ..................... off
• Installation kit KN 58 for fastening to
horizontal steel girders ......... off
Volumetric Flow Controller:
Zehnder combined volumetric flow controller
for flow and return, up to 100°C, differential
pressure up to 4 bar, DN 25, PN 12 bar,
volumetric range 30-865 litres/h, consisting
of: Controller for return, complete with shut-
off valve, filling valve, drain valve and threa-
ded connector.
Combined flow valve complete with shut-off
valve, filling valve, drain valve and threaded
connector ..................... off
Armoured Flexible Tubing:
Zehnder armoured flexible tubing with suita-
bility verification by the Technical Control
Board, Germany for use in heating installati-
ons, consisting of temperature- and ageing-
resistant EPDM with woven stainless steel
braiding DN 25, PN 5 bar, length 500 mm
..................... off
Total flow rate of heating water kg/h
Pre
ssu
re d
rop
in P
a
500 1000 1500 2000
7000
6000
5000
4000
3000
2000
1000
0
Zehnder ZIP Radiant Ceiling Panels.
Technical Data for Layout Design.
Resistance Loss Calculation. The
resistance loss of the Zehnder ZIP Radiant
Ceiling Panels is calculated as the sum of
the tubing-group resistance loss and of the
resistance loss in the group connections to
the piping system. When Zehnder volume-
tric flow controllers are installed, the additio-
nal resistance loss as per the graph below
(resistance loss/combined volumetric flow
controller) must be used.
Heating Water Flow Rate. The ther-
mal output data apply to fully developed tur-
bulent flow regimes within the tubing of the
radiant panel. The minimum flow velocity
necessary for this purpose is determined by
the return temperature tR. The minimum
heating-water mass flow per tube group is
obtained from the table shown.
Hot-water Flow Rate Less Than
Minimum Value. If the minimum flow rate
per tube group (4 parallel tubes) cannot be
reached and if it is not possible to connect
several panels in series, a heat emission
reduction of 15% must be allowed for. This
means that an emission correction factor of
about 1.18 must be used when designing
the panel.
Automatic Hydraulic Equalisation.
The volumetric flow is limited and held con-
stant as a result of using the dynamic
Zehnder combined volumetric flow control-
ler. The volumetric flow is maintained at the
desired value independently of any resi-
stance loss (pressure drop) through the val-
ve when a controller is used. The controller
is set to operate at the maximum desired
volumetric flow. A constant volumetric flow
in the radiant ceiling panel is thereby ensu-
red.
Resistance Loss through the Connectors
� 14 15 �
Return temperature in °C
Flo
w r
ate
of
he
ati
ng
wa
ter
kg
/h
40 50 60 70 80
900
800
700
600
500
400
300
200
100
0
1 module
2 modules in parallel
3 modules in parallel
A
B
C
Minimum Mass Flow Rate of Heating Water
Total flow rate of heating water kg/h
Pre
ssu
re d
rop
in P
a/m
500 1000 1500 2000
400
350
300
250
200
150
100
50
0
eludom
1
2m
odul
esin
para
llel
3 modules inpara
llel
A
B
C
530 19 1.22535 20 1.20540 19 1.24595 21 1.30625 21 1.36640 21 1.40770 26 1.51
790 27 1.52845 29 1.57865 31 1.55
105 15 0.27110 19 0.25120 15 0.31125 19 0.29130 15 0.34
135 18 0.32145 16 0.36155 19 0.36180 19 0.41190 19 0.44205 17 0.50230 17 0.56
30 15 0.0850 15 0.1365 15 0.1775 15 0.19
100 19 0.23
340 17 0.82355 17 0.86365 16 0.91400 16 1.00405 19 0.93
410 16 1.03415 18 0.98465 19 1.07475 19 1.09505 19 1.16
235 19 0.54275 19 0.63290 17 0.70300 16 0.75325 17 0.79
Heating Pressure Loss kPa Kvs Value m3/hWaterkg/h
Resistance Loss through the Tube Groups Volumetric Flow Controller DN 25
Zehnder GmbH · Systeme für Strahlungsheizung und -kühlung · Europastraße 14 · D-77933 LahrTel. +49 78 21 / 5 86-0 · Fax +49 78 21 / 5 86-4 03 · www.zehnder-online.de · [email protected]
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33 L
ahr,
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