5
P
re
-In
st
alla
tio
n
B.
PRE-INSTALLATION
1.
Inspect the heater for possible damage due to shipping
and handling. Claims for shipping damages shall be
placed with the carrier.
2.
Check the heater nameplate to ensure that the heater
area classification and temperature code are suitable for
the hazardous area classification.
3.
Verify that the nameplate voltage, phase and wattage
are as ordered and are the same as the electrical power
supply available. DO NOT CONNECT THE XGB UNIT
HEATER TO A SUPPLY VOLTAGE OTHER THAN THAT
SHOWN ON THE PRODUCT NAMEPLATE.
C.
INSTALLATION AND MOUNTING
The heater must be installed by qualified personnel in strict
compliance with the electrical code.
C.1
Dimensions
Table 1 – Dimensions and Weights
(See Figure 3, page 5)
Cabinet
Type
A
B
C
D1
D2
Weight
in mm in
mm
in
mm in mm in
mm
lbs
kg
Small
Cabinet
16
7/8
429
8
7/8
225
25
3/16
640
17
1/2
445
–
100
45
La
rg
e C
ab
in
et
10-15
kW
20
1/8
511
8
7/8
225
29
1/4
743
–
31
1/4
794
145
66
20-35
kW
185
84
C.2
Mounting
1.
Norseman™ explosion-proof unit heaters can be
mounted to a ceiling, wall, 3" pipe, or floor stand. Ensure
that the mounting surface is sufficiently strong to
support the heater, which, depending on the model,
could weigh up to 185 lbs, (84 kg). Provide sufficient
stiffness to prevent excessive vibration and withstand
harsh situations such as transportable installations. See
C.1 Dimensions, page 5
for heater dimensions and
weights.
2.
The heater must be positioned with a minimum 15 cm
(6") side clearance from all surrounding surfaces and
must be mounted at least 61 cm (24") from the floor for
small cabinet units, or 2440 cm (96") from the floor for
large cabinet units. It is best to maximize clearances to
allow freedom of rotation. Ensure that airflow into and
out of the unit is not restricted.
3.
All mounting studs, bolts, nuts and other fasteners shall
be secured so that there is no possibility of loosening
over prolonged periods. Periodically inspect at regular
intervals and retighten if necessary.
4.
All standard mounting kits are designed to support the
heater on its centre of gravity and to allow for 30º tilt in
the vertical direction and 360 º rotation in the horizontal.
Note that horizontal rotation is fixed after the ceiling
bracket is bolted to its support.
5.
For specific mounting instructions refer to C.3,
page 6.
6.
If lifting with slings, take special care not to damage the
casing.
7.
For large cabinet units, leave the heater on the shipping
skid and use the skid as a lifting platform to facilitate
installation of the heater.
AIRFLOW
C
A
B
D1
D2
Figure 3 –
XGB Heater Dimensions
