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Operating Instructions CP VARITHERM DNPA HI
HOM177737483Ien-7
Page 5 / 7
INTERTEC-Hess GmbH · Raffineriestr. 8 · 93333 Neustadt/Donau · Germany ·
+49 9445 9532-0 · [email protected]
For free convection, the heater needs to be installed with
ribs standing vertically. The minimum distances to the
floor and to devices above it must be complied with. The
label needs to remain legible.
For the operation of the device, it is absolutely
necessary to connect an external digital temperature
controller TC… in series with the heater. The controller
housing may only be mounted at a place where 80°C is
not exceeded. See separate operating instructions for
series digital temperature controller TC.
To ensure operational safety, the heater must operate
under temperature conditions which will NOT exceed the
trigger temperature of the limiter.
The operating temperatures must be adhered to.
The connection cable must be permanently installed up
to the inlet into the on-site junction box, taking the
permissible bending radius = 5 x outer diameter into
consideration.
Additional installation material, such as rails or panels
and also junction boxes, are not included in the standard
scope of delivery (see
and must be ordered additionally.
8
Connection
WARNING
The heater is only designed for non hazardous
areas.
INTERTEC-Hess GmbH accepts no liability for improper
use.
INFO
The device may only be connected up and secured by a
trained person, taking into account the "rated voltage"
and "rated current" specified on the nameplate.
Where operating voltage = measured voltage (rated
voltage), then the heater is at its rated output. Mains
voltage fluctuations up to 10 % are then permissible.
Each heater with integrated TS thermostat must be
preceded by a 10 A fuse or a motor protection switch
with short-circuit and thermal quick release (set to 10 A)
as short-circuit protection. When using a heater without
integrated thermostat, the fuse protection can be
selected according to the cross-section of the supply
cable.
In a TT or TN system, a residual current device (RCD)
must be used where the measured triggering residual
current does not exceed 100 mA. Residual current
devices with a measured triggering residual current of 30
mA are preferable. In an IT system, an insulation
monitoring device needs to be used which switches off
the supply as soon as the insulation resistance is no
greater than 50 Ω per Volt of the rated voltage.
ATTENTION:
Never remove the
adapter/ cable gland!
Illustration 2:
Example heater with KLE connection
CAUTION
NOTICE: Do not remove adapter/ cable
connection to connect up the heater!
This would cause irreversible damage to the heater.
The illustration may deviate from the heater.
