Detail reference

Trench heaters - PK

Licon PK convectors are intended for embedding in floors, especially in places prohibiting installation of higher radiators, e.g. in front of french windows, winter garden entries, hall entrances, exits etc., in public buildings (shops, administrative buildings etc.), as well as in residential houses. Various colored designs of the floor grids are making convectors suitable for any interior.

• Natural convection convectors
• Wide type and design range
• Easy to clean and maintain
• The floor convectors are intended for dry environment
• For humid environment use version InPool

Version Basic*	zinc galvanised steel case, exchanger without any surface finish, no frame. Atention – intended for dry environment
Version Economic	basic version in black coated galvanized steel case, exchanger without surface finishes
Version Exclusive	black coated galvanized steel case, black coated exchanger
Version Inox	case made of stainless steel AISI 304, unpainted exchanger (only for dry environment)
Version InPool	case made of stainless steel AISI 316, unpainted exchanger (for humid environment)
Depth (mm)	90, 110, 150, 190, 300, 450
Width (mm)	160, 200, 280, 340, 420
Length (mm)	800 up to 3 000 (at 200 mm steps)
Heat output (W)	from 87 to 4 100
Max. working pressure (bar)	12
Max. working temperature	110°C
Connecting thread	inner G 1/2"
Grids	Design grids for trench heaters
Design finishes	Trench heaters - Design finishes

Basic* – manufactured in depths of 9 and 11 cm, in widths of 16, 20, 28, 34 and 42 cm and in lengths from 80 cm to 3 m. On the Basic version of the floor convector are possible any floor grid.

Heat outputs (W) at t1/t2/ti = at 75/65/20 °C (Δt=50) and 65/55/20 °C (Δt=40) / EN 442 temperature exponent m=1,3

Depth (cm)

Length L (cm)

Δt

100

120

140

160

180

200

220

240

260

280

300

Width 16

Δt 50

121

156

191

226

260

295

330

364

399

434

469

Δt 50

100

140

180

220

260

300

340

380

420

460

500

540

Width 20

Δt 50

110

154

197

241

285

329

373

417

461

505

549

592

Δt 50

127

178

229

280

330

381

432

483

534

584

635

686

Width 28	9	Δt 50	161	226	290	355	419	484	548	612	677	741	806	870
	11	Δt 50	174	244	313	383	453	522	592	662	731	801	871	940
	15	Δt 50	245	344	442	540	638	736	834	932	1031	1129	1227	1325
	19	Δt 50	267	374	480	587	694	801	908	1014	1121	1228	1335	1441
	30	Δt 50	313	439	564	690	815	940	1066	1191	1317	1442	1567	1693
	45	Δt 50	483	676	870	1063	1256	1449	1642	1836	2029	2222	2415	2609

Width 34	9	Δt 50	226	316	406	497	587	677	768	858	948	1039	1129	1219
	11	Δt 50	242	339	436	533	630	727	824	921	1018	1115	1212	1308
	15	Δt 50	315	440	566	692	818	944	1070	1196	1321	1447	1573	1699
	19	Δt 50	360	503	647	791	935	1079	1223	1367	1510	1654	1798	1942

Width 42	9	Δt 50	318	445	573	700	827	954	1081	1209	1336	1463	1590	1718
	11	Δt 50	337	472	606	741	876	1011	1146	1280	1415	1550	1685	1819
	15	Δt 50	433	606	779	952	1125	1298	1471	1644	1817	1990	2163	2337
	19	Δt 50	471	660	848	1037	1225	1413	1602	1790	1979	2167	2356	2544
	30	Δt 50	546	765	983	1202	1420	1638	1857	2075	2294	2512	2731	2949
	45	Δt 50	759	1063	1367	1670	1974	2278	2581	2885	3189	3492	3796	4100

Correction factor kt for a variant temperature difference Δt (K)

Δt(K)	18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33
kt	0,265	0,284	0,304	0,324	0,344	0,364	0,385	0,406	0,427	0,449	0,471	0,493	0,515	0,537	0,560	0,583
Δt(K)	34	35	36	37	38	39	40	41	42	43	44	45	46	47	48	49
kt	0,606	0,629	0,652	0,676	0,700	0,724	0,748	0,773	0,797	0,822	0,847	0,872	0,897	0,923	0,948	0,974
Δt(K)	50	51	52	53	54	55	56	57	58	59	60
kt	1,000	1,026	1,052	1,079	1,105	1,132	1,159	1,186	1,213	1,240	1,267

Optional version

Basic - zinc galvanised steel case, exchanger without any surface finish, no frame.
Exclusive – black coated zinc galvanised steel (identical with the design type Economic), black coated heat exchanger
InPool – the case design in stainless steel AISI 304, unpainted exchanger (only for dry environment)
Inox – the case design in stainless steel AISI 316, unpainted exchanger (only for dry environment)

Standard delivery contains

version Economic – black coated zinc galvanised steel case

unpainted heat exchanger with low water content, air vent and uniquely shaped lamellas for higher heat output
anodized Al frame, U profile, in colour of natural aluminium
fixing anchors to fix the case to the floor
a pair of flexible stainless steel hoses for easy connection
chipboard cover protecting the exchanger against dust and dirt on the building site
25 mm height adjustment screws to compensate for the floor asperity
mounting instructions
the set is packed in a strong and durable packaging

Optional specification

pool design PKB are standard designed with a drain hole include mounting instructions PKB
colour of the anodized Al frame – natural aluminium, light and dark bronze in the F profile or light or dark bronze for U profile
lockable screwing thermostatic valve and thermostatic shut off valve head
cover plate with increased rigidity

Aluminium frame profiles

Standard design – U frame

Standard PK design contains silver U profile. Profile colour is equal with grid colour, for other colours.

Selectable version – F frame

When the selectable frame F is ordered, it is attached separately to convector (not installed on convector). Frame colours are identical with aluminium grid colours.

Pertl - Version Basic – without frame

Floor convector finish with no frame fitting option (U and F).

Depth 90 mm	Depth 110 mm

Depth 150 mm	Depth 190 mm

Depth 300 mm	Depth 450 mm

Convectors installation

Connecting the floor convectors Licon PK

Cases' types according to water inlets' location and lowering of faces for batch assembly.

Lowering of the cases' faces is used where it is not desirable to see the connections between the convectors (long rows of convectors, i.e. administative buildings, hotels etc.). When ordering the walkable grid it is necessary to mention that it is the PM, which will be used for the convector with the lowered face.

Note: The PKB convectors' individual cases cannot be mutually interconnected. These are made only in P0 design.

Building recommendation Several general principles must be fulfilled for proper function of the convector.

To interconnect the exchanger and the distributing pipeline, the standard stainless-steel hoses with stainless-steel jacketing must be used (unless recommended otherwise) which always form a part of the delivery. In practice they provide a better access under the heat exchanger without having to dismantle the heating system, e.g. during cleaning.
A correctly installed convector is mounted horizontally and the top edges of the convector case are not warped or deflected to ensure proper functioning of the walk-on grid and allows venting of the heat exchanger.
Correctly installed convector's decorative frame at the floor covering is within the margin of + 2 mm.
We recommend to keep the cover board in its place for the full duration of the building work to prevent dirt getting inside the convector. The standard board supplied is not walkable. A higher load bearing capacity board can be ordered.
The height adjustment screws are only used for horizontal levelling of the convector case.
During concreting the convector must be fixed to the floor with the use of fixing anchors screws that will prevent vertical shifting of the convector during subsequent pouring of concrete. The convector can be vertically loaded during concrete pouring. During concreting the convector must be strutted to prevent deformation of the case. When using other casting material (e.g. anhydride) seal thoroughly all passages into the convector to prevent it from flooding.
Convectors with stainless steel case, designed for humid environments and identified as PKB have a standard built-in water drainage. It must be interconnected during the installation with a pipe with secured slope to drain the waste water. We recommend to fit the drain with the odour trap.
For further versions for PK built-in (Possibility to imbed in floors according to floor types).

Heat exchanger placement

Standard design

PKB pool version (InPool)

The specified dimensions do not include the decorative frame

Suitable for interiors with increased humidity, must be fitted with Al grid
•Pool designavailable only in depths 9 and 11 and widths 20, 28, 34 and 42 cm • Not possible to connect cases from more PKB convectors.

Weights and water volumes of floor convectors

steel type	9/16	9/20	9/28	9/34	9/42	11/16	11/20	11/28	11/34	11/42	15/28	15/34	15/42	19/28	19/34	19/42	30/28	30/42	45/28	45/42
kg/linear meter	4,1	5,12	5,96	7,24	8,47	4,43	5,54	6,4	7,7	9	8,59	10,53	12	9,47	11,5	12,96	13,9	18,45	17,7	22,3
stainless steel kg/linear meter	-	5,07	5,94	7,24	8,5	-	5,47	6,36	7,7	9	-	-	-	-	-	-	-	-	-	-
l/linear meter	0,18	0,4	0,4	0,6	0,8	0,18	0,4	0,4	0,6	0,8	0,8	1,2	1,6	0,8	1,2	1,6	0,8	1,2	0,8	1,2

Assembly instruction PK
Assembly instruction PKB
Assembly instruction PM

Enquiry form for production of specific convector, floor grid
Note: please download the form and save it to your computer to some file or desktop, then fill in the saved form.

Back to list

Contact form

For more information, don't hesitate to contact us.