Danfoss SRIG Pre Terminated Cable Instructions

: July 24, 2024
: Danfoss

Table of Contents

Danfoss SRIG Pre-Terminated Cable
Product Usage Instructions
Introduction
FEATURES
Cable speciﬁcations
General installation instructions
Storage of self-regulating cables
Frost protection of roofs
Mounting Danfoss Self-Regulating Ice guard Cable
Frost protection of pipes
Warranty
FAQ
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Danfoss SRIG Pre-Terminated Cable

Specifications

Application : Roof/gutters/downpipes/water pipes
Colour : Black
Dimensions : 0.52 x 0.24 inch
Sheath : Polyolefin UV
Voltage : 120 V
Output : 6 W/ft
Min. start-up temperature: 6 ft
Max. temperature ON / OFF : A + B / WS + G
Length of cold lead: 6 ft
Intended use as per IEEE 515.1
Intended use as per CSA Std. 130-03

Product Usage Instructions

Introduction
The Danfoss Self-Regulating Iceguard pre-terminated cable is designed for ice and snow melting on roofs, gutters, down pipes, and water pipes to prevent freezing. The self-regulating feature ensures that overheating is avoided, even if cables touch or cross each other

Cable Specifications
Follow the cable specifications provided for proper installation and usage. Ensure to test the cable heating power according to the recommended method before installation.

Caution

Use the Danfoss SRIG cables only in safe areas.
Ensure that finished or painted pipes are completely dry during installation.
Connect the heating cable to the main electrical source as recommended by Danfoss.
Have an authorized electrician connect the heating cable in compliance with electrical codes.
Protect the cable against excess strain and tension.
Avoid using SRIG for vinyl garden hose applications or installing it behind walls, in ceilings, through flooring, or inside pipes.

General Installation Instructions
Before installation, measure the insulating resistance of the heating cable. Follow the step-by-step installation guide provided in the manual for a successful setup.

Introduction

Danfoss Self-Regulating Iceguard pre-terminated cable is a self-regulating cable, which is mainly used for ice and snow melting on roofs, in gutters, in down pipes and on water pipes to prevent them from freezing.
Self-regulating heating cables are designed with a temperature-dependent resistant element between two parallel copper conductors.
When the conductors are connected to the mains, a current goes through the temperature-dependent resistant element which will then heat. As the element is heated the resistance value rises causing the current to decline and heating is reduced. This explains the self-regulating eﬀect.
This limiting of the output takes place independently on the entire length of the cable according to the actual ambient temperature.
If the ambient temperature rises the heating eﬀect of the cable is reduced. Due to this self-regulating capability, overheating of the cable can be avoided, also if two heating cables are touching or crossing.
As self-regulating heating cables always give oﬀ a small amount of eﬀect, it is recommended to con-nect the heating cable via a thermostat to discon-nect the mains when heating is not required.

Danfoss SRIG cables secure against ice formations in roof gutters.

No water damages on/in the house
No falling icicles or icebound roof gutters
No risks for pedestrians
No repair costs after winter
No frozen water pipes

FEATURES

Outer sheath
Screen
Insulation
Bonded jacket
Self-regulating heating element
Connecting conductor

Cable speciﬁcations

Application Roof/gutters / downpipes/water pipes
Colour Black
Dimensions 0.52 x 0.24 inch
Sheath Polyolefin UV
Voltage 120 V
Output 5 W/ft at 50°F
Min. installation temperature 23°F
Min. start-up temperature -40°F
Max. temperature ON / OFF 150°F / 185°F
Length of cold-lead 6 ft
Intended use as per IEEE 515.1 A + B
Intended use as per CSA Std. 130-03 WS + G
Approvals

The effect stated is measured with the Iceguard heating cable installed on an insulated metal pipe, according to DIN E VDE 0254 similar to CSA C22-2, NO.130-03, 6.2.4.3.
When self-regulating cables are installed in the open, the effect may be reduced by approx. 50%.
When planning the installation it must be considered that self-regulating cables may reduce the operational effect over several years.

Cable heating power

The recommended test method is:

Power up the cable.
Wait 5 minutes.
Measure the ambient temperature.
Measure the amperage draw of the cable.
Convert the Amperage that the cable draws into Watt.
Dived the wattage with the feet length of the cable.
Compare the result with the table on page 3.
The result may vary up to +/- 10% due to the uncertainties of the temperature along the entire cable.

Caution

Danfoss SRIG cables are only for safe (nonhazardous) areas.
Finished or painted pipes or containers must be completely dry when installing. The heating cable must only be used in the manners recommended by Danfoss and should be properly connected to the main electrical source.
Connection of the heating cable must be done by an authorized electrician in compliance with all national, state, provincial, and local electrical codes.
The heating cable must be protected against excess strain and tension.
Do not use SRIG for vinyl garden hose applications.
Do not install SRIG behind walls, in ceilings, through ﬂooring or underneath roof covering.
Do not install the cable inside any pipes.

General installation instructions

Measure the insulating resistance of the heating cable immediately before the installation is begun.
Make sure that the necessary materials are present at the building site.
Remove any sharp objects and irregularities on the pipe system, so the heating cable are not damaged.
The surface onto which the heating cable is to be installed must be non-combustible, clean and free from sharp objects.
The heating cables’ bending diameter must not be less than 2 inches. The cable must only be bent on the ﬂat side.
The heating cable screen must be grounded in accordance with local electrical regulations.
The power circuit must be equipped with an isolation switch or a similar overload protection device.
Residual current device (RCD) protection is required (max. 30 mA).
To reduce energy consumption we strongly recommend switching the heating cable, i. e. by using a thermostat.
At low temperatures, the heating cable can become stiﬀ and diﬃcult to work with. This problem can be solved by connecting the cable to the mains for a short period of time.
The cable insulation resistance must be measured before and after installation.
The presence of a heating cable must be made evident by caution signs or markings at the power connection ﬁttings and/or frequently along the circuit line, as well as being stated in any electrical documentation following the installation.

Storage of self-regulating cables

Heating cables and connecting leads must be kept in a clean and dry place.
Avoid contact with chemicals and petrochemical products during storage of the cables.
Do not expose the heating cables to mechanical strain.
The storage temperature may not drop below – 40°F and may not exceed +140°F.
Are the heating cables and connecting leads kept in moist rooms or at building sites, they must be protected against moisture – also during storage for a short period (e.g. when installing the cable terminal).

Frost protection of roofs

During periods with cold and precipitation dangerous and damaging ice formations are often formed on the roof, in roof gutters and down pipes, especially when the temperature is around freezing point.
Concerning roof constructions with low slope, it is often suﬃcient to install Danfoss SRIG cables in roof gutter and down pipe to ensure an eﬃcient draining oﬀ of the melt water.
Concerning roof constructions with high slope it is often necessary also to install the heating cable on the lowest section of the roof. If the roof is sup-plied with snow fence the cable can be installed from this to the roof edge with advantage.
Concerning valleys, the cable must be mounted in the valley. To achieve eﬃcient protection the C-C distance should not exceed 6 inches.

Installation:

In many ordinary roof gutters it is suﬃcient to install one cable length in roof gutter and down pipe.
Typically, the cables should be installed with a C-C distance of approx. 6 inches. To ensure the distance spacing clips can be used.
With the above-mentioned installation, the system will typically ensure ice and snow melting down to a temperature of approx. 14°F.
If you want to frost protect the roof down to 4°F, a general rule will be to double the eﬀect, and for -22°F to triple the eﬀect.
If the cable lies across an edge etc. the spacing clips can be used to relieve strain on the cables, e.g. where the cable enters the down pipe.
Relief of a cable hanging in the down pipe is necessary when the cable length in the pipe exceeds approx. 9.8 inches.
The cable in the down pipe should continue to frost-proof depth under the surface of the ground (approx. 3.2 ft).
Cables installed on the roof must always be positioned upwards/downwards and not along the roof. The installation can be made with a zigzag pattern as shown on the illustration on the next page.

Mounting Danfoss Self-Regulating Ice guard Cable

Danfoss Guardhook
Danfoss Roofhook
Temperature sensor
Connection box
Downspout hanger

Frost protection of pipes

Installation
When installing Danfoss SRIG cables on pipes the cable can be secured to the pipe with aluminum tape. Furthermore, it is recommended that the entire cable is covered with aluminum tape to ensure eﬃcient heat transfer to the pipe. The cable must be placed optimally on the underside of the pipe, and it is recommended always to insulate the pipe to reduce the heat loss.

When the heating cable is installed on pipes it should be clearly marked with a warning text!. E.g.:

WARNING!HEATING CABLE

The installation of the heating cable must take place at full length along the pipe. This is not only time-saving when installing the cable, you also prevent installation defects and any damages dur-ing the work with the thermal insulation. First attach a strip of aluminium tape to the pipe, then secure the heating cable with the ﬂat side to the pipe with a new strip of aluminum tape.

Heating cables can be wrapped in a spiral around the pipe only if this is requested.

Installation of the cable at full length along the pipe
Install the heating cable on the pipe as shown below.

On horizontal pipes the heating cable must not be positioned on the top half of the pipe. Thus mechanical strain of the heating cable is pre-vented when e.g. the insulators are working along the pipe.

Securing the cable
Fasten the cable to the pipe with a distance of min. 8 inches with aluminium tape or strips.

Please consider the following when choosing tape or strips:

When using strips you should consider the temperature resistance and resistance against chemical inﬂuences of the strip.
Never secure the cable with metal.
Never use PVC insulating tape or tape containing PVC or VC!
Always use aluminum tape when requested by the installation instructions. When using aluminum tape the heat transfer is improved as the cable is held close to the pipe.

Warranty

For a period of ten (10) years from the date of purchase Danfoss warrants that the Danfoss SRIG Cable is free from defects in material, design and workmanship. The warranty is only valid if the warranty certiﬁcate is correctly ﬁlled out and the installation is in accordance with the installation instructions. The warranty certiﬁcate shall be presented to Danfoss in the case a claim is made. The defective Danfoss SRIG Cable has to be inspected by or submitted to Danfoss or an authorized Danfoss RX dealer. Failure to comply with the before mentioned conditions will void this warranty. Danfoss will, when the customer has documented that a defect in the Danfoss SRIG Cable was present at the date of delivery, repair or supply a new Danfoss SRIG Cable at Danfoss’ option. All claims shall be made within the warranty period. Danfoss shall not be liable for any claims made later than ten (10) years from date of purchase. Danfoss shall not be liable for any consequential and secondary costs or damages linked to the defect or replacement of the Danfoss SRIG Cable.

THE FOREGOING WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, ON THE PART OF DANFOSS. DANFOSS DISCLAIMS ANY WARRANTY, EXPRESS OR IMPLIED, OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. DANFOSS NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON, FIRM OR CORPORATION TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OR PRODUCT. DANFOSS SHALL NOT BE HELD RESPONSIBLE FOR DAMAGE TO PERSON OR PROPERTY, CONSEQUENTIAL LOSS, LOSS OF PROFIT, LOSSES ON GOODS IN STORE, OR THE LIKE THAT MIGHT ARISE OUT OF THE FAILURE OF THE EQUIPMENT DELIVERED, IRRESPECTIVE OF THE CAUSE (INCLUDING FAULTY MANUFACTURE).

Phone : 1-888-DANFOSS (326-3677)
Fax : 416-352-5981
www.LX.Danfoss.com

Any infuses, iptionind. Vertisemimise to and water mael available in ditt. orally. electronically one design, ended. inal sie considerit informather technical data ding tand manuals, extent, explicit reference is made in a quotation or order confirmation. Danfoss cannot accept any responsibility for possible errors in catalogs, brochures, videos and other material. Danfoss reserves the right to alter its products without notice. This also applies to products ordered but not delivered provided that such alterations can be made without changes to the form, fit or function of the product.

AQ004786449874en-US0202 / 088L8018

FAQ

Q: Can the heating cable be used for vinyl garden hoses?
A: No, the SRIG cable should not be used for vinyl garden hose applications as per manufacturer recommendations.

Q: Is it necessary to have an authorized electrician connect the heating cable?
A: Yes, it is essential to have an authorized electrician connect the heating cable in compliance with all electrical codes to ensure safety and proper functionality.