DRAFT 9/13/12. Installation & Operation Instructions for Mineral Insulated Heating Cable Embedded Snow Melting Applications.

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Amice Lawrence
5 years ago
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1 Installation & Operation Instructions for Mineral Insulated Heating Cable Embedded Snow Melting Applications DRAFT 9/13/12 CIT-1 Snow Sensor APS-4C/3C Snow/Ice Controller Junction Box SIT-6E Pavement Sensor JB-7 Junction Box PJ September

2 Mineral Insulated Heating Cable Embedded Snow Melting Applications Installation and Operation Instructions Inspection - General Design and Installation Notes: - - Installing Cable in Concrete: 1. - Figure Figure Figure 1 Figure 2 2

Expansion and Construction Joints: 3HOULD IT BE NECESSARY TO PASS THE HEATING CABLE THROUGH AN EXPANSION JOINT IT SHOULD BE DONE AS SHOWN IN &IGURE! OR " 5SE METHOD SHOWN IN &IGURE!

LLOW v OF CABLE TO LOOP UNDER JOINT 5SE METHOD IN &IGURE " WHEN IT IS NOT POSSIBLE TO PASS UNDER THE JOINT OR A TWO POUR SLAB IS USED Figure 3A 4YPICAL %XPANSION *OINT $ETAIL Figure 3B 4YPICAL

FTER THE CABLES ARE IN PLACE A SMALL AMOUNT OF ASPHALT SHOULD BE PUT OVER THE CABLES AND TAMPED 4HE lnal TOPPING COURSE SHOULD BE A MINIMUM OF INCHES IN THICKNESS AFTER COMPACTION Special Surface

SHOULD BE INSTALLED IN THE GROUT BENEATH THE TILE AS SHOWN IN Figure 4 /NCE CABLE IS CORRECTLY POSITIONED THE BASE SLAB SURFACE MUST BE PREPARED PROPERLY TO RECEIVE THE TOPPING #ARE MUST BE TAKEN

3 Expansion and Construction Joints: 3HOULD IT BE NECESSARY TO PASS THE HEATING CABLE THROUGH AN EXPANSION JOINT IT SHOULD BE DONE AS SHOWN IN &IGURE! OR " 5SE METHOD SHOWN IN &IGURE! TO PASS UNDER JOINTS!LLOW v OF CABLE TO LOOP UNDER JOINT 5SE METHOD IN &IGURE " WHEN IT IS NOT POSSIBLE TO PASS UNDER THE JOINT OR A TWO POUR SLAB IS USED Figure 3A 4YPICAL %XPANSION *OINT $ETAIL Figure 3B 4YPICAL %XPANSION *OINT $ETAIL Installing Cable in Asphalt: (EATER S SHOULD BE INSTALLED IN A UNIFORM PATTERN AND HELD IN POSITION ON THE BASE SLAB USING 330 SPACER STRIP OR BY ATTACHING TO MESH!FTER THE CABLES ARE IN PLACE A SMALL AMOUNT OF ASPHALT SHOULD BE PUT OVER THE CABLES AND TAMPED 4HE lnal TOPPING COURSE SHOULD BE A MINIMUM OF INCHES IN THICKNESS AFTER COMPACTION Special Surface Treatments 7HEN SLAB SURFACES ARE TO BE TOPPED WITH DECORATIVE TILE BRICK MARBLE GRANITE ETC IT IS RECOMMENDED THAT THE CABLE BE ATTACHED TO THE REINFORCING )F THIS IS NOT POSSIBLE THEN THE CABLE SHOULD BE INSTALLED IN THE GROUT BENEATH THE TILE AS SHOWN IN Figure 4 /NCE CABLE IS CORRECTLY POSITIONED THE BASE SLAB SURFACE MUST BE PREPARED PROPERLY TO RECEIVE THE TOPPING #ARE MUST BE TAKEN WHEN APPLYING THE DECORATIVE TOPPING NOT TO DAMAGE THE CABLE 4HE MINIMUM BEND RADIUS OF THE CABLE IS TIMES THE DIAMETER $O NOT BEND THE CABLE TOO SHARPLY $O NOT MAKE A BEND IN THE CABLE WITHIN INCHES OF THE BRAZED HOT COLD JOINT OR TERMINATION SLEEVE /NCE THE HEATER IS IN PLACE AND SECURED PRIOR TO COVERING CONDUCT A INSULATION RESISTANCE CHECK ON THE UNIT S AT 6DC 4HE INSULATION RESISTANCE READING MUST BE NO LESS THAN -1 Heater Unit Termination: %ACH HEATER UNIT IS TERMINATED WITH A BRAZED SEAL AND PRESSURE ltting FOR ATTACHING CABLE INTO CONDUIT HUB 3EE Figure 5 FOR DETAILS Figure 4 4YPICAL $ETAIL 7ITH #ABLE )N 'ROUT Figure 5 4YPICAL $ETAIL 7ITH #ABLE )N 'ROUT

Slab Temperature Sensor: 4O PREVENT CABLE FROM BEING ENERGIZED DURING TIMES ITS NOT NEEDED AND FOR ENERGY EFlCIENCY A SEPARATE SLAB SENSING THERMOSTAT OR INTEGRAL TEMPERATURE SENSOR SHOULD BE USED

METAL CONDUIT $O NOT ALLOW THE CONDUIT TO TOUCH THE HEATING CABLE AND CAP THE METAL CONDUIT SO THAT IT IS WATER TIGHT 4HE CONDUIT SHOULD BE LONG ENOUGH TO EXTEND TO THE MIDDLE OF THE AREA BEING

UTOMATIC 3NOW #ONTROLLER s 4HE METHOD SHOWN BELOW IS THE MOST ENERGY EFlCIENT METHOD 4HE CABLE WILL BE AUTOMATICALLY ENERGIZED WHEN MOISTURE IS PRESENT AND THE TEMPERATURE IS BELOW FREEZING 4HE

4 Slab Temperature Sensor: 4O PREVENT CABLE FROM BEING ENERGIZED DURING TIMES ITS NOT NEEDED AND FOR ENERGY EFlCIENCY A SEPARATE SLAB SENSING THERMOSTAT OR INTEGRAL TEMPERATURE SENSOR SHOULD BE USED 4HESE SENSORS SHOULD BE USED IN CONJUNCTION WITH THE AUTOMATIC SNOW MELTING CONTROL PANELS 4HE TEMPERATURE SENSOR SHOULD BE INSTALLED BE- TWEEN TWO RUNS OF HEATING CABLE AND SHOULD BE INSTALLED IN METAL CONDUIT $O NOT ALLOW THE CONDUIT TO TOUCH THE HEATING CABLE AND CAP THE METAL CONDUIT SO THAT IT IS WATER TIGHT 4HE CONDUIT SHOULD BE LONG ENOUGH TO EXTEND TO THE MIDDLE OF THE AREA BEING HEATED 4EMPERATURE /NLY 4EMPERATURE AND -OISTURE Control, Monitoring, and Power Distribution!UTOMATIC 3NOW #ONTROLLER s 4HE METHOD SHOWN BELOW IS THE MOST ENERGY EFlCIENT METHOD 4HE CABLE WILL BE AUTOMATICALLY ENERGIZED WHEN MOISTURE IS PRESENT AND THE TEMPERATURE IS BELOW FREEZING 4HE SYSTEM WILL ALSO BE DE ENERGIZED AUTOMATICALLY ONCE THE SLAB REACHES THE TEMPERATURE SET POINT! BUILT IN TIMER KEEPS THE SYSTEM ENERGIZED FOR A SET TIME TO ALLOW SLAB TO DRY COMPLETELY ONCE THE MOISTURE IS NO LONGER PRESENT #HROMALOX SNOW MELT SYSTEMS SHOULD BE CONTROLLED IN ONE OF THE FOLLOWING THREE WAYS -ANUAL /N /FF #ONTROL s 4HE POWER OR CIRCUIT BREAKERS ARE MANUALLY OPERATED 3LAB 3ENSING 4HERMOSTAT s 4HE SYSTEM WILL ENERGIZE WHEN THE SLAB TEMPERATURE DROPS BELOW THE FREEZING 4HE SYSTEM WILL COME ON EVEN WHEN MOISTURE IS NOT PRESENT 4HEREFORE THIS IS NOT THE MOST ENERGY EFlCIENT METHOD OF CONTROL

5 Wiring: Figure 6 - Figure 7 Figure 8 Figure 6 Figure 7 Figure 8

6 Installing Cable in Stairs (Single Pour): Figure 9

Installing Cable in Stairs (Two Pour or existing): 1. - 2.

7 Installing Cable in Stairs (Two Pour or existing): Figure 10 7

8 COMMISSIONING AND PREVENTATIVE MAINTENANCE System Tests Visual Inspection Insulation Resistance Check De-energize circuit(s) before performing insulation resistance check Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at HEIL QUAKER BLVD., LAVERGNE, TN Phone: (615)