PRODUCT DIMENSIONS
Controller Dimensions
Limiter dimensions
INSTALLATION
Ensure all personnel involved in installation, servicing,
and programming are qualified and familiar with electrical
equipment, their ratings and proper practices and codes.
Installation Location
Considerations should include expected atmospheric
conditions, accessibility for maintenance, testing and ambient
temperature. The conditions at the place of installation may
affect load current ratings.
Operator Safety Considerations
Caution:
Some wiring configurations will use more than one
power source and all must be de-energized prior to performing
any maintenance on a control circuit.
Warning:
The HTC-915 control module must be protected by
external over current and disconnect devices.
Mounting Procedures
The HTC-915-CONT and HTC-915-LIM are designed for
installation on a standard 35 mm x 7.5 mm (EN50022
compatible) DIN rail.
Pollution Degree 2
Altitude 0-2000m
MAINTENANCE
Operator Maintenance
The HTC-915 control system is designed to be a maintenance
free product.
Replaceable Parts
There are no user-serviceable parts in the HTC-915 series
controller or accessories. The unit is designed to be easily
changed out in the field in a matter of minutes.
Any HTC-915 system component appearing inoperative
should be returned to the nearest nVent office.
Cleaning
If the HTC-915 components require cleaning, a damp cloth
may be used to wipe the units. This should only be done while
the units are disconnected from their power source. Do not
use any harsh chemicals or solvents, as this may damage the
housing or finish.
ELECTRICAL CONNECTION
Connections are made via screw connections suitable to
accept cable diameters between 0.5 and 2.5 mm2 (24 to
12 Awg). Either solid or stranded wires may be used.
Do not rely on the controller as a disconnect device!
Installation notes
• If contact with live parts is possible while working on the
unit, it must be completely isolated from the mains supply.
Be aware that the unit might have cables connected to it
which are powered from different sources.
• Magnetic or electric fields, eg: from transformers, mobile
phones or electrostatic discharge must be avoided in the
vicinity of the instrument.
• Route input, output and supply lines separately.
• Arrange sensor cable extensions as twisted and screened
cables. Do not run them close to power cables. The shield,
if any, shall be earthed on the controller’s side only.
• Fluctuations in the supply signals are only permissible
within the specified tolerances.
75
45
105
915 SERIES
LIMITER
POWE R
ALAR M
HEATER
CURRENT
Tx /Rx
RESET
TRIP
75
90
105
SHIF T
TEST
BACK
ENTER
MONITOR
ALARM
CONFI G
ALAR M
OUTPU T
915 SERIES HEA T-TRACING CONTROLLER
Tx
Rx
North America
Tel +1.800.545.6258
Fax +1.800.527.5703
[email protected]
Europe, Middle East, Africa
Tel +32.16.213.511
Fax +32.16.213.603
[email protected]
Asia Pacific
Tel +86.21.2412.1688
Fax +86.21.5426.2937
[email protected]
Latin America
Tel +1.713.868.4800
Fax +1.713.868.2333
[email protected]
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specifications without notice.
Raychem-IM-HTC915-INSTALL092-EN-1811
nVent.com