Hot Water Temperature Maintenance

Overview

W55 and W65 range of parallel circuit self regulating heating cables is the perfect solution for hot water temperature maintenance of pipes installed in offices, hotels, sports centres, domestic dwellings etc. Our range of heaters provide instant hot water from every tap or shower unit when installed on a non-circulating installation.

Heaters regulate their power output to compensate for the variation in water and ambient air temperatures.

Our heaters eliminate the need for designing complex re-circulating systems with pumps, valves and return pipes, thereby providing low installation costs.

The temperature in the pipes are maintained by varying the thickness of the thermal insulation in line with the pipe diameters. Insulation thicknesses are based on those commercially available in order to maintain the minimum temperatures stated in an ambient of 18°C.For exact temperature control a temperature control device may be required. If in doubt please consult First Trace Heating

Watch: Hot water trace heating cable range

W55 Specification

Maximum Exposure Temperature 85°C (continuous power on)
Maximum Maintenance Temperature 55°C
Minimum Installation Temperature -40°C​​
Minimum Bending Radius 35mm at -40 °C ; 13mm at 20 °C​
Supply Voltage 230v​
​Maximum Circuit Length ​100m (20Amps MCB type C)​
Thickness ​6mm​
Width ​12.5mm​

W65 Specification

Maximum Exposure Temperature 90°C (continuous power on)
Maximum Maintenance Temperature 65°C
Minimum Installation Temperature -40°C​​
Minimum Bending Radius ​35mm at -40 °C ; 13mm at 20 °C​
Supply Voltage 230v
Maximum Circuit Length​ 100m (20Amps MCB type C)​
Thickness 6mm​​
Width ​​12.5mm​

Product Guide

Hot Water Temperature Maintenance

Insulation Table

Recommended Insulation Schedule, based on thermal conductivity of 0.035 at 35°C

Pipework Location Internal
Mean Ambient Temperature 18°C
Maintain Temperature Nominal 55°C​​

Pipe Diameter

15mm 22mm 28mm 35mm 42mm 54mm 67mm
Mineral Wool Insulation Thickness 20mm 20mm 25mm 30mm 40mm 50mm 50mm

For other thermal conductivity insulation, contact Technical at First Trace Heating Direct Ltd.

Electrical Circuit Design

Maximum Circuit Lengths. 55°C start up temperature. Maximum heating cable length per circuit

Amps Voltage Maximum Circuit Length
Electrical Protection Sizing MCB Type C 16A 230v 80m
20A 230v 100m

The use of a 30mA residual current device to provide maximum safety is recommended.

For more detailed information please contact Technical at First Trace Heating Direct Ltd.

Hot Water Trace Heating Products

TRACE W55

Hot water temperature maintenance trace heating tape to maintain 55°C

TRACE W65

Hot water temperature maintenance trace heating tape to maintain 65°C

PDF

Download the W55 W65 data sheet Adobe PDF

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