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B.4
Thermostat Installation
1.
FACTORY INSTALLED - For shipping purposes the
thermostat well (located at back of unit) has not been
installed.
2.
Position thermostat bulb perpendicular to housing
being careful not to kink the capillary. Slide well over
bulb and screw into place. Make sure that a minimum
5 threads engagement is achieved
FIELD INSTALLED KIT - Most Norseman
TM
XB CE units
are suitable for field installation of a thermostat kit
with the operator shaft hole on the front side of the
unit and plugged with a socket head cap screw. If a
thermostat is to be field installed, check to verify that
you have been supplied with the correct thermostat
kit. Single phase heaters use a single pole thermostat
as supplied in kit number XTKW04481CE. Three
phase heaters use a double pole thermostat as
supplied in kit number XTKW04483CE. Follow the
instructions supplied with the kit.
C.
WIRING
1.
Whenever hazardous materials are present, ensure
that the terminal housing covers are secure before
powering the heater.
2.
Use supply wires suitable for 105°C (221°F).
3.
Use local approved flameproof entry devices as
required by the code for hazardous locations.
NOTE:
The reference pressures are as follows:
XB1 : 11.1 BAR
XB2 & XB3 : 52.8 BAR
Use only flameproof entry devices suitable for
reference pressure.
4.
To provide maximum protection each Norseman
TM
XB CE heater should be fused individually using the
nearest standard fuse size which is not less than 120%
of the expected line current.
5.
All heaters come factory prewired and ready for direct
connection to the power supply leads.
5.1 Connect the power leads to terminals marked L
and N for single phase and L1, L2 & L3 for three
phase heaters as shown in Figure 8.
5.2 Connect the ground wire to the ground
connection located in the heater terminal
housing.
Figure 8 – Wiring diagrams
L
N
L
N
L
N
