Thermal Insulation; Pre-Installation Checks; Installation; Marking - BriskHeat SLCBL Serie Manual De Instrucciones De Instalación Y Mantenimiento

THERMAL INSULATION

Pre-Installation Checks

Inspect the heating cable and components for correct installation and possible damage. In particular, verify that:

The proper extra amount of heating cable has been installed at each valve, flange, pipe support, etc. and that it is free from physical nicks, tears or gouging. Additional
cable beyond the specified amount at a heat sink is not a problem due to the self-regulation effect of the heating cable.

Connections, splices and end seals are correctly installed, including cable seals at power connection enclosures.

Ensure insulation is properly rated fir the maximum edxposure temperature of the heated system.

Installation

Check the thermal insulation type and thickness against the design criteria. Changes in insulation type or thickness may require a different wattage heating cable. Verify that
all pipe work, including wall penetrations, fittings, etc. has been completely insulated.
Check the system to verify that:

Insulation is not wet from rainfall prior to the application of waterproofing.

Lap joints on vertical piping are properly overlapped - higher piece lapped over the top of lower piece.

Band seals are used at lap joints to prevent the ingress of water.

All penetrations of lagging (valve stems, hanger rods, etc.) are properly water proofed.

Irregular shaped items (i.e. pumps, etc.) are properly waterproofed.
To minimize potential damage to the heating cable, install the insulation as soon as possible. It is recommended that another insulation resistance (megger) test be done after
the insulation has been installed to verify that the heating cable was not damaged during the insulation installation.

Marking

Install "Electric Trace" signs on alternate sides of the piping at regular intervals, as a warning to maintenance personnel. Permanently mark the outside of the insulation
lagging with the location of heating cable components. This will facilitate maintenance in the event of a problem.
THERMOSTATS & SENSORS
Temperature sensitive applications will require the use of a thermostatic control. Selection of the proper thermostat must consider voltage and amperage ratings of the device
as well as the suitability of housing for the environment (explosion proof, rain tight, corrosion resistance, etc.). Thermostat housing should be mounted as close as possible to
the power connection kit. It may be attached to the power connection kit provided code requirements are met with regard to conduit connections seals, etc. To sense the
coolest air temperature, ambient (air sensing) thermostats should be mounted in the shade when possible. When using pipe-sensing thermostats, the bulb (sensor) should be
mounted on the opposite side of the pipe from the heater, or as far away as is practical. This will allow the thermostat to sense the actual pipe temperature and not be
influenced by the heater temperature. Mount the bulb at least three (3) feet from the closest heat sink if possible.
Moisture inside the enclosure will cause both corrosion and electrical shorting problems. The potential for this type of problem can be greatly reduced by:

Proper sealing of all enclosures openings.

Keeping enclosure cover closed and secured as mush as possible during installation sequence.

Proper closing and sealing of the cover to prevent leaking into the housing.

Use of a moisture proofing/electrical spray (aerosol) sealant on thermostat and electrical connections (including all metal parts) at completion of installation.

Connection and use of space heater if thermostat is so equipped. Do not de-energize space heater during summer months.

ELECTRICAL REQUIREMENTS

Voltage Rating

Verify that the heating cable voltage rating is suitable for the service being used. 240 volt rated cables may be used from 208 to 277 volts, with an accompanying change in
power output.
®
© BriskHeat
Self Regulating Heating Cable
Corporation. All rights reserved.
17

Electrical Loading

Size over-current protective devices shown in Figure 12 and 13. If devices are other than standard thermal magnetic circuit breakers,
consult factory.
(For installation in USA) All appropriatedly rated circuit breakers must be identified using a reference label indicating which branch
circuit supplies the circuits to the series heating cable sets.
SLCAB
Maximum Circuit Length in Feet Vs. Circuit Breaker Size
Start-up Temperature
Circuit
Heat Cable
Breaker
50°F 0°F
Type
Size
(10°C) (-18°C) (-29°C)
15 amp 300 200
SLCAB3120 20 amp - 270
30 amp - 330
15 amp 660 410
SLCAB3240 20 amp - 560
30 amp - 660
15 amp 230 150
SLCAB5120 20 amp 270 200
30 amp - 270
15 amp 460 300
SLCAB5240 20 amp 540 400
30 amp - 540
15 amp 150 95
20 amp 200 125
SLCAB8120
30 amp 210 190
40 amp - 210
15 amp 295 195
20 amp 390 250
SLCAB8240
30 amp 420 375
40 amp - 420
15 amp 115 70
20 amp 150 95
SLCAB10120
30 amp 180 145
40 amp - 180
15 amp 230 150
20 amp 305 200
SLCAB10240
30 amp 360 300
40 amp - 360
© BriskHeat
Self Regulating Heating Cable
Heat Output (Watts per Foot)
12
D = 10 W/FT
-20°F
10 C = 8 W/FT
B = 5 W/FT
A = 3 W/FT
180 8
230
6
330
360
4
480
660
2
130
175 0
0 (-3) 50 (10) 70 (21) 90 (32) 110 (43) 130 (54)
260
Pipe Temperature, °F(°C)
260
345 Voltage Adjustment Factors
520
Power Adjustment Factor
85
Product Type 208 VAC
100
SLCAB3240 0.75
170
SLCAB5240 0.86
210
SLCAB8240 0.91
170
SLCAB10240 0.93
225
340
420
60
85
120
165
130
175
260
360
Figure 12
®
Corporation. All rights reserved.
18
150 (66)
277 VAC
1.28
1.16
1.10
1.08