Danfoss GX Heating Cables Installation guide

InstallationManual

DanfossGXHeatingCables&Mats

Manueld'installation

CâblesettapisdechauffageDanfossGX

DanfossGXTM

BRINGINGWARMTHTOLIFE

Table	of		Contents
Danfoss GX Snow Melting System				......................................................................................2
Danfoss	GX	Cable/Mat ............................................................................................................		3
Warnings	......................................................................................................................................			4
General	Installation		Guidelines ............................................................................................	5
Sensor	Installation		....................................................................................................................	6
Sensor	Placement		.....................................................................................................................	7
Installing	the	Heating Mat/Cable ........................................................................................		8
Concrete	Installation ................................................................................................................			9
Asphalt	Installation ..................................................................................................................			11
Stonework Installation.............................................................................................................				12
Danfoss	Warranty ......................................................................................................................			14

Table		des		Matières
Fondeuse		à neige		Danfoss	GX...............................................................................................	15
Câble/tapis		Danfoss		GX		16
Mises	en	degar.........................................................................................................................			...	17
Lignes	directrices générales				d'installation........................................................................	18
Installation		du	détecteur.........................................................................................................			19
Placement		du	détecteur..........................................................................................................			20
Installation		du	tapis/câble		de chauffage...........................................................................	21
Installation		dans	le	béton........................................................................................................		22
Installation		dans	l'asphalte.....................................................................................................			24
Installation		dans	la	maçonnerie............................................................................................		25
Garantie		Danfoss				27

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Danfoss GX Snow Melting System

Danfoss

GX Snow

Melting System

The

GX

Snow

Melting

System

consists of the GX 850

Automatic

Control

Panel (ACP),

cables

or

heating

mats

and

multiple

digitally

operated

sensors

which

provide

an

eco

and efficient means of snow

melting

and

ice forprotectionoutdoor.

use,Builtthe

GX

system

provides safety and peace of

mind to

homeowners

and

.businessEngineeredownersfor

alike

surfaces such as asphalt, concrete

and

paving

tiles the

Danfoss

GX

Snow

Melting

versatile and easy to install.

The Danfoss GX Snow Melting System operates automatica

digitally

sensing

moisture

and

temperature.

The GX System is embedded

during the paving installation, such that

some

control

a

accessoriesmust

also

be

installed at

this

time.

It

is

recommended

to

install

thermal

insulation

below

the application

of

the

heating

mats.

Improved

performance

and

efficiency

will decrease

overall

operating

costs.

CAUTION!

It is

important

that this equipmeonlyinstalledis

by

qualified

electricians

who are

familiar

with

the

proper

sizing, installation, construction and operation

of

outdoor

heating

syste

and

the

hazards

involved.

The

GX

systemfor

isoutdooresignedice

and

snow

melting

applications

only.

Note!

The

installation shall

be in

accordance with the manufacturer's instructions

and

nationa

local

electrical codes.The installation shall be

in

accordancePart426, withAmerican

National

Standard

Institute

/

National

Fire

Protection

Association

(ANSI/NFPA70),

National Electrical

Code

(NEC)

and

Canadian

Electrical

CodePart

You1(CEC),.must use

a

ground

fault

equipment

protection

(GFEP)

fordeviceoutdoor

areas.

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DanfossGX Cable/Mat

Danfoss

GX

snow

melting cables

are

the

basis

of

an

electric

snow

melting

system

d

the snow

removal

process

as

well

as

lessen

its

environmental

impact.

The

GX

efficient

and

economicalIt.consists

of

twin

conductor

heating

cables

and a

single

point

con

with a 20’ (6m)leadpower.Danfoss GX cables are CSA certified.

Snow melting

cables/mats

suitableforconcrete,

asphalt,

pavers,

and

stonework

for Idealdriveways, parking lots, sidewalks, stairs, ramps,

o

o

areas

and

bridges

loading

Reduces the environmental impact

of

snow

and ice

removal

by

eliminating

the

u

fuel driven snow blowers, snowplows, rock salt and/or other chemicals

Silent, efficient, automatic and safe

Single point

connection

Zero EMF’s

Genuine twenty

yearwarranty

Danfoss		GX Cable/Mat		Specifications
Type:			Twin	conductor
Voltage:			208,240,		277,347,	480,600V
Output:			50W/sq.ft. (540W/m2)Cable				12W/ft
HeatingElementSize:
Mat			6.5’(1.98m)		-	80’ (24.38	m)2’(0.61longm) xwide
Cable			35’ 545’- (10.7 166- m)
		Lead	Power
			20’(6.0m)
BendingRadius:			Minimum		1.5”	cm)(3.8
CableDiameter:			1/4”(0.65cm)
Conductor		Insulation:	FEP/	Teflon
Outer	Insulation:		PVC
Max.	Temperature:		220°F	(105ºC)
Min.	InstallationTemp.:		40°F	(5ºC)

Connection(all voltages)

Phase - Black

PhaseWhite

Ground - Green

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Warnings

Caution!

Is

it

important

to

read

the

instructions

carefully

before

installing

the

Danfoss

Snow

Melting

System.

•For

outdoor

installation

only;

•Never cut the black heating cable;

•Extreme care must be

used

to

ensure

the

GX cables

are

not

damaged

when

u

tools, wheelbarrows, heavy machinery and paving equipment,

shovels,

rakes,

or

other

implements.

Avoid walking on the cables or mats during installation;

•It is

not

recommended

to install the Danfoss GX

heating

mats

with

a

controller

does

not

contain

an

integrated temperature

limiter;

•The

GX

mat

or

GX

cable must

be

embedded

in

mortar

or

mortar

mixture,

con

or

similar

material;

•The

power

lead/heating

cable

connection

and

at

least

1’

(30

cm)

of

the

pow

must be embedded in the paved surface;

•Remaining

power

lead

should

be

run

through

the

conduit

•The

power

lead

may

be

extended

if

required;

•Do

not

install

the

Danfoss

GX

cables

in

such

a

manner that

two

black

he

cables touch, cross or overlap;

Remember

to

always

measure,

verify

and

record

the

actual

resistance

throughout

th

installation

process:

1.

Out

of

the

box

2.

After

installation

3.

Before

pouring

the

sand/concrete/asphalt

4.After surface material application

Record

these valuesthetablein

on

page

20 and

on

the

warranty

card,

failure

to

do

will void

the

warranty;

•Measure the resistance between

two

live

conductors as

well

as

the

resistance

bet

each conductor and the ground wire.

• Danfoss

recommends

using

a tomegaohmmetertestthe insulation

resistance.

•Remember

to

check that the supply voltage matches

thefor voltageyour

required

particular

Danfoss

GX

product;

•Remember

to

place

the

labels

as

instructed

in

this

manual;

• Metal

structures

orfor mattherialssupportused of

or

on

which the Danfoss GX is

installed

must

be

grounded

in

accordance

with CSA

Standard

C22.1,

Section

10

a

NEC.

Please

consult

the

Danfoss forElectricalany

othquesHratingons,concernsDivision

or advice.

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General Installation Guidelines

Planning

It

is recommended

to

sketch

a

planfor ofthetheheatinglayout system installation.

Mat/cable

location, sensor placement, junction boxes,

conduits

and

the

location of

drains

and

oth

obstructions

should

be

noted.

Mat

Alterations

The

GX

heating mats

can be

altered to

accommodate

drains, obstructions or

bends

i

By

carefully

cutting

the

mat

ptaptterns,manyand

designs

can

be

created The

figure

below

illustrates

this.

Free Cable and Cable Strapping

Should	the Danfoss cable strappingfor betheusedGX cable, follow the instructionsfor below
ease	of installation.

Attach the Danfoss strapping to the ground surface

(3’ apart)

Place	the GX cable	Clip	the GX cable
(3”	standard	in	place
spacing)

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5

Installing a Feeder Cable

(For use with Gx850 and/or ground sensors, not applicable ) when using DS-2B.

A feeder

cablefor

a sensor

may be

needed.

A

50’

(15m)

cable

is

supplied

with

each

Approx. 1.5’ (0.5m) of this cable should

be

coiled

inside

the

bottom

of

the

sensor

remaining

cable

may be

lengthened.

The

feeder

cable

must

be

a

four

wire

cable.

Installing a Sensor and a Conduit

The

sensor and

the

conduit

may

be

installed

in

connection

with

the

actual

constructi

and

connected

at

a

later date. The followingforall

tyapplies of

installations:

1.

Ensure

that

the

conduit

is

sealed

when

the

concrete

is

poured.

2.

The

conduit

must

be

positioned

so

that

it is

flush

withThe thesensorsurrounding terrain.

must

be

placed

so

that

the

upper

brass

surface

is

horizontal.

3.

The

base

below

the

tube

emust.g. a beconcretehard,

tile,

toin

ensureorder

that

the

sensor

is

not

pushed

into

the

groundforexampleif

a vehicle

runs

over

it.

The totube

is

designed

mounted

on

a

plate

using

the two

screw

holes

inside

the

conduit.

4.

A

metal/plastic

pipe,

through

which the

sensor

cable

may

be

passed,

should be

the

sensor

conduit.

5.

Coil

approx.

1.5’

(0.5m)

of

the

sensor

cable

inside

the

conduit.

6.

Place

the

sensor

inside theit tubeishorizontallyuntil

flush

with

the

edge

of

the

conduit

a

resting

on

the

internal collar inside

the

conduit.

The

sensor

may be extracted at a

using

the

two

holes

found

around

the

edge

of

the

sensor

conduit.

The

grooves

on

the

sensor

shouldespondcorr with

the

holes

in

the

conduit.

Installation

of

conduit

with

sensor

cable

Installation in Asphalt

The

temperature must

not 176°exceed(80

F

°C)

around the

sensor/tube.

A wooden

bloc

similar

place

holder

may be

used

in the

area

where

the

tube/sensor

can

be placed

The

installation

pipe forusedthe

sensor

cable

should,

in that

case, be a

metal

tube

that

withstand high

temperatures.

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6

Placement of Ground Sensors

Correct

placement

of

the

sensor(s) isfor importantthesystem

to

work

as

intended.

Some

basic

guidelines follow:

The

number

of

ground

sensors:

1.

The

more

sensors

added

to

the

system

the

better

the

performance.

2.

The

basic

principle

is

to place one sensor where

the snow/ice will appear first

detection) and

one

sensor

where

the

snow/icelastwill(fordisappearcomplete

melting).

If

it

is

not

obvious

just

place

the

sensors

as

far

apart

from

each

other

as

possible.

3.

With

only

one

sensor

youto decidewillhavewhat is most important:

a) fast

detection

and

activation of the system or

b)

securing

a complete

melting

of

Aallone snow/icesensor.

ground

system will

be

slower

in

terms

of

detection

and activation than a two

sensor ground system, where on

measures

the

ground

temperature and the other sensor

measures

the

moisture.

4.

With

more than

two

sensors

toit

coverispossibleproblem

spots

where

snow

usually

is

not

detected

or

wheresnow

is

not

completely

melted

when

the system

stops.

Min. ft3.

Sensor

Placement of Individual Ground Sensors

1.

The

sensor must

be

placed

within

the

heated area

and

at

least

3.3’ (1 m)

from the

edge

of

the

area,

if

possible.

2.

The sensor must be placed

in

between

the

heating

cables

-

a

distance

of

minimum

0.4”

(1 cm)

should

be

maintained

between

the

sensor

tube

and

the

heating

cable.

3.

Thermust

be

a

distance of

minimum

3.3ft. (1

m) between

the

two sensors.

0.4” (1cm)

min)

(1m 3. 3ft.

Junction box

Feeder cable

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Installing the heating mat

Begin

by fastening

the

heating

mat

to

the

mesh reinforcement

using

tie-wraps

or

cab

Do

not

fix

the

heating

cable

of

the

mat

in

such

a

way

that

it

is

compressed

o

able

to

move.

Unroll

the

mat

up

to

the

point

at

which

it

is

to

be

flipped and

t

page

5

to

alter

the

mat.

Cut

the

tape

using andscissorsrotate

the

mat

so

that

it

can

be

unrolled

to

cover

the

are

already

unrolled matDo. not cut

the Thecable!cable

can

be

carefully

detached

from

the

tape

and then placed as free cable.

canThis bfeaturveryforusefulcurves

and

around

drains or

other

obstructions.

Labels:

Labels 2E or F are to be placed at the switchboard

Labels 3E and F are to be placed in the room or area where the heating mat/cabl

Installing the heating cable

The

GX

cable

must

be

laid

out

with

even

spacing

over

theTo entireensurearean

to

be h

accurate

and

easy

method

of

installing

the

GX

cable

it

is

recommended

to

use

strapping.

Attach the

cable

strapping

to

the

rebar

or

other

supporting

structure

using

The

strapping

should

be

laid perpendicular tothethecabledirectionwill be

unrolled.

Space

the

strapping

3’ (75cm)

apart.

Secure

the

heating cable

to

the

cable

strapping

at

the

center

distance.

Do

not

secure

the

cable

too

tightly

as

this

may

damage

the

cable.

cable

strapping,

affix

the

cableheatingto the

rebar or

wire

mesh

using

tie

wraps.

Labels:

Labels 2E or F are to be placed at the switchboard

Labels 3E and F are to be placed in the room or area where the heating mat/cabl

Center-to-Center(C-C) distance

The

C-C

distance

is

the distance

between (GXthe

matsGX

cablhaves

a

preset C-C

distance).

2

is

3”In(7.5a

cm)typical.

application the C-C distance

Standard spacingfor 50W/sq.ft. (540W/m )

should

not

exceed

4”

and be less than 3”

if

the

cables

are

installed as part

o

If

the

C-C

distance

is

higher, cold

spots

may

form

on

the

surface

and.

incomplete

m

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