ZEX_ZIP_V0404_screen_final

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

required. This simplifies installation and

facilitates easy system extension when

premises are enlarged.

� Lightweight. Easy to assemble and

install.

� Installation-compatible. Shorter installa-

tion 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.

single

320

triple 1088 mm

64

320320

64 320

double 704 mm

64

320320

quadruple 1472mm

64

320320

64 32032064

6000 mm Basic element ZIP L60

2000 mm

Basic element ZIP L20

3000 mm


4000 mm


5000 mm Basic element ZIP L50

Zehnder ZIP Radiant

Ceiling Panels.

Overall length

Overall widths

Examples of parallel warrant

� 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

in line with DIN EN 10305-3. The pipe ends

are chamfered for the use of threaded or

compression-type couplings. They thereby

ensure maximum 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=2,0871 K=0,2456n=1,1489 n=1,3524

70 275 7768 266 7466 257 7164 248 6862 239 65

60 230 6258 222 6056 213 57

55 208 55

54 204 5452 195 51

80 321 9278 311 8976 302 8674 293 8372 284 80

40 145 3638 136 3436 128 3134 120 2932 112 27

30 104 2428 96 2226 88 2024 80 1822 73 16

50 187 4948 178 4646 170 4444 161 4142 153 39

Δt in K Zehnder ZIP in W/m Collector pair in W

Tube spacing mm 80

Designation/Version Units Zehnder ZIP

Cooling capacity ZIP watt/ 36at Δt = 10 K metre run

Cooling capacity ZIP watt/ 42without thermal insulation metre runat Δt = 10 K

Operating weight of RCP kg/m 4.17without water content and insulation

Operating weight of RCP kg/m 4.70with water content and insulation

Water content kg/m 0,53per lfm ZIP

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.

� Maximum operating temperature: 95°C.*

� Maximum operating pressure: 5 bar.*

*Higher operating temperatures and pressures available on request.

Heat Emissions

Performance information in accordance with EN 14037

The Zehnder ZIP radiant ceiling panels offer numerousconnection options. Here areonly a few examples.

Cooling capacity collector watt/ 10pair at Δt = 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


Water connection options.

� 8 9 �

� 10 11 �

8

9

1

1

*

77

8

91

2


Suspension Systems.

Installation Kit KN 53. Fastening to concrete ceiling with steel drive anchors,eye bolts and spring hooks.

8

7

8

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

7

8

9

6

1

*

7

8

9

10

3

1

4

*

1

4

7

8

9

11

5

3

*

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.

1 Hexagon nut, M81 Steel drive anchor, M 83 Carrier clamp, M 84 Securing clip5 Flat leaf screw, M 86 Trapezoidally formed suspension

element, M 8

7 Knotted-link chain, K 228 Spring hook9 Eye bolt10 Plain washer11 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


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 in line with DIN EN

10305-3. Outside surface of radiation panel

coated with polyester lacquer similar to RAL

9016, opposite side with protecting lacquer.

Suitable 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


trapezoidally formed sheet steel

..................... off


tilted steel girders ..................... off


horizontal steel girders ......... off

Volumetric Flow Controller:

Zehnder combined volumetric flow controller

for flow and return, up to 100°C, differential

pressure up to 4,0 bar, DN 25, PN 16 bar,

volumetric range 150-1050 litres/h, consi-

sting of: Controller for return, complete with

shut-off valve, filling valve, drain valve and

threaded 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 10 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


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.

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.

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

810 38,3

840 38,8

870 39,3

900 39,7

930 40,2

960 40,6

990 41,1

1020 41,5

1050 41,9

210 22,5

240 23,6

270 24,7

300 25,7

330 26,7

360 27,7

390 28,6

420 29,5

450 30,4

480 31,2

150 20,1

180 21,3

600 34,1

630 34,8

660 35,4

690 36,0

720 36,6

750 37,2

780 37,7

510 32,0

540 32,7

570 33,4

Pressure Loss kPa mass flow in kg/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 (0) 78 21/586-0 · Fax +49 (0) 78 21/586-403 · [email protected] · www.zehnder-online.de

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