Outdoor Heating Applications
Installation Guide
Outdoor Heating Applications
Mats and cables
Intelligent solutions with lasting effect
Visit devi.com
DEVI |
VIFTH402 |
|
|
Installation Guide |
Outdoor Heating Applications |
|
|
||
|
|
||||
|
|
|
|
|
|
|
Tabel of Contents |
|
|
|
|
1 |
Introduction |
|
2 |
||
|
1.1 |
Safety Instructions |
2 |
||
|
1.2 |
Installation guidelines |
4 |
||
|
1.3 |
System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
4. . . |
||
|
1.4 |
Calculating C-C distance for heating cables |
5 |
||
|
1.5 |
Planning the installation |
5 |
||
|
1.6 |
Preparing the installation area |
6 |
||
2 |
Installing elements |
|
6 |
||
|
2.1 |
Installing heating elements |
6 |
||
|
2.2 |
Sensor installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
7. . . |
||
3 |
Applications |
|
7 |
||
|
3.1 |
Frost protection of roof and gutters |
7 |
||
|
3.2 |
Snow melting on ground areas |
8 |
||
|
3.3 |
Field/seed bed heating |
10 |
||
4 |
Optional settings |
|
12 |
||
1 |
Introduction |
|
|
|
In this installation manual, the word “element” refers to both heating cables and heating mats.
•If the words “heating cable” or “heating mat” are used, the instruction in question applies only to this type of element.
1.1Safety Instructions
Never cut or shorten the heating element
•Cutting the heating element will void the warranty.
The intended uses of the heating elements covered by this installation manual are shown in the following.
For other applications please contact your local sales office.
•Cold leads can be shortened to suit requirements.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
DEVI |
|
|
VIFSV402 |
|
|
|
|
Installation Guide |
Outdoor Heating Applications |
||
|
|
|
|
Elements must always be installed according to local building regulations and wiring rules as well as the guidelines in this installation manual.
•Any other installation may hamper element functionality or constitute a safety risk, and will void the warranty.
Elements must always be connected by an authorised electrician using a fixed connection.
•De-energize all power circuits before installation and service.
•Each heating element screen must be earthed in accordance with local electricity regulations and connected to a residual current device (RCD).
•RCD trip rating is max. 30 mA.
•Heating elements must be connected via a switch providing all pole disconnection.
•The element must be equipped with a correctly sized fuse or circuit breaker according to local regulations.
5
6 |
2 |
7
3
4 1
1.Heating cable
2.Thermostat
3.Sensor
4.Screen
5.RCD
6.All-pole switch
7.Fuse
Connections
•Phase - Brown
•Neutral - Blue
•Earth - Screen
The presence of a heating element must
•be made evident by affixing caution signs or markings at the power connection fittings and/or frequently along the circuit line where clearly visible
•be stated in any electrical documentation following the installation.
Never exceed the maximum heat density (W/m2 or W/m) for the actual application.
DEVI |
VIFSV402 |
|
|
|
|
|
|
Installation Guide |
Outdoor Heating Applications |
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Prepare the installation |
Regularly measure |
Do not lay heating ele- |
|||||||||
site properly by remov- |
ohmic resistance and |
ments under walls and |
|||||||||
ing sharp objects, dirt, |
insulation resistance |
fixed obstacles. Min. 6 |
|||||||||
etc. |
before, during and after |
cm space is required. |
|||||||||
|
|
|
installation. |
|
|
|
|||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Keep elements clear of insulation material, other heating sources and expansion joints.
Elements may not |
The elements and es- |
The element should be |
touch or cross |
pecially the connection |
temperature controlled |
themselves or other |
must be protected from |
and not operate at |
elements and must be |
stress and strain. |
ambient temperature |
evenly distributed on |
|
higher than 10°C in |
areas. |
|
outdoor applications. |
•Store in a dry, warm place at temperatures between +5 °C to +30 °C.
Standards |
DEVIsafe™ |
DEVIsnow™ |
DEVIasphalt™ |
DEVIsport™ |
|
|
(DTCE) |
(DTIK) |
(DSM3) |
|
|
|
|
|
60800:2009 (cable) |
M2 |
M2 |
M2 |
M2 |
|
|
|
|
|
M2
For use in applications with high risk of mechanical damage.
|
|
Product selection: |
DEVIsafe™ |
DEVIsnow™ |
DEVIasphalt™ |
DEVIsport™ |
|
|
|
|
(DTCE) |
(DTIK) |
(DSM3) |
|
|
|
|
|
|
|
|
|
Frost protection of roof and gutter systems |
+ |
+ |
- |
- |
|
|
|
|
|
|
|
|
|
Snow and ice melting on ground areas |
(+) |
+ |
+ |
+ |
|
|
|
|
|
|
|
|
|
Field / seed bed heating |
- |
+ |
- |
+ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
DEVI |
VIFSV402 |
|
|
|
|
|
|
Installation Guide |
Outdoor Heating Applications |
||
|
|
|
|
1.4Calculating C-C distance for heating cables
The C-C distance is the distance in centimetres from the centre of one cable to the centre of the next.
For heating of gutters, please refer to the number of cables per metre, see section 3.1.
C - C [cm] = |
Area [m2] |
x 100 cm |
|
Cable length [m] |
|||
|
|
||
or |
|
|
|
C - C[cm] = |
Cable output [W/m] |
x 100 cm |
|
Heat density [W/m2] |
|||
|
|
Draw a sketch of the installation showing
•element layout
•cold leads and connections
•junction box/cable well (if applicable)
•sensor
•connection box
•thermostat
Max. C-C distance |
|
Roof and gutter systems |
10 cm |
Ground areas |
20 cm |
Field / seed bed heating |
25 cm |
•Heating cable bending diameter must be at least 6 times cable diameter.
•The actual cable length may vary +/- 2 %.
230V/400V
C-C [cm] |
W/m² @ |
W/m² @ |
W/m² @ |
|
20 W/m |
25 W/m |
30 W/m |
||
|
||||
|
|
|
|
|
5 |
400 |
500 |
- |
|
|
|
|
|
|
7,5 |
267 |
333 |
400 |
|
|
|
|
|
|
10 |
200 |
250 |
300 |
|
|
|
|
|
|
12,5 |
160 |
200 |
240 |
|
|
|
|
|
|
15 |
133 |
167 |
200 |
|
|
|
|
|
|
20 |
100 |
125 |
150 |
|
|
|
|
|
|
25 |
80 |
100 |
120 |
|
|
|
|
|
Save the sketch
•Knowing the exact location of these components makes subsequent troubleshooting and repair of faulty elements easier.
Please observe the following:
•Observe all guidelines - see section 1.2.
•Observe correct C-C distance (heating cables only) - see section 1.4.
•Observe required installation depth and possible mechanical protection of cold leads according to local regulations.
•When installing more than one element, never wire elements in series but route all cold leads in parallel to the connection box.
•For single conductor cables, both cold leads must be connected to the connection box.
DEVI |
VIFSV402 |
|
|