XGB Owners Manual - Norsemanheaters.com

Part No. 11110 - Rev. 02
Edmonton Head Office & Factory
5918 Roper Road, Edmonton, Alberta, Canada T6B 3E1
P 780.466.3178
F 780.468.5904 Toll Free 1.800.661.8529
[email protected]
www.ccithermal.com
Installation, Operation & Maintenance Instructions for
NorsemanTM XGB Explosion-Proof Unit Heater
3.75 - 35kW, 60 Hz Units
1.0 GENERAL INFORMATION
STANDARD PRODUCT FEATURES
DESCRIPTION
• CSA C/US Certified for hazardous locations. Small cabinet units
approved for Class I, Div 1 & 2, Group D; Class II, Div. 1 & 2,
Groups E, F and G. Large cabinet units approved for Class I, Div.
1 & 2, Groups C & D; Class II, Div. 1 & 2, Groups E, F & G.
Note: Class II and some atmospheric groups are not available in
every kW rating.
• Optional Zone marking available.
• Ratings from 3.75 – 35kW.
• 208 – 600V, 1 or 3 phase
• Low watt density extra heavy wall tubular steel finned heating
elements with nickel plated finish
• Glycol-free design allows the heater to be tilted 30º downward
• Rotatable outlet louvers provide 35º of additional airflow
redirection
• Patented x-Max® housing with track and trolley system simplifies
installation and servicing
• Heavy duty 16 ga. Stainless steel casing
• Terminals for remote thermostat connection
• Dual automatic reset high limits
• Contactor derated for extended service life
• Isolated supply connection housing eliminates the need for
conduit seals
CCI Thermal’s XGB explosion-proof unit heater is the latest addition
to the NORSEMAN™ line of hazardous location heating products.
The small cabinet units are available with ratings from 3.75 – 10kW,
and can be identified by their internally mounted motor. The large
cabinet units (shown below) are available from 10kW up to 35kW.
See section 3.1 for cabinet dimensions.
GLYCOL
FREE
DESIGN
APPLICATION
Designed specifically for heating industrial spaces where potentially
explosive substances are or may be present. Typical hazardous
location environments include:
• Water and Sewage Treatment Plants
• Oil Refineries
• Compressor Stations
• Pulp and Paper Mills
• Paint Storage Booths
• Cement Plants
• Mines
CONSTRUCTION AND INSTALLATION
CCI Thermal’s NORSEMAN™ unit heaters use extra heavy wall
finned tubular steel heating elements to provide safe, efficient heat
transfer to the environment. The heater does not contain glycol,
decreasing maintenance costs.
Flow adjustment… in structures with high ceilings, other units may
not have the range of motion needed to direct air flow to the floor.
The glycol-free design of the XGB allows the unit to be tilted to
a 30º angle below the horizontal, with an additional 35º of airflow
redirection provided by the outlet louver. For lateral airflow, the
entire louver assembly can be rotated 90º.
No conduit seal required… a factory installed conduit seal provides
the necessary isolation between the supply and control housings.
In Division 2, Zone 1 and Zone 2 applications, a field installed
conduit seal may not be required.
Simplified wiring… to facilitate installation, the NORSEMAN™
explosion-proof unit heaters feature the patented x-Max® housing
with slide out terminal block trolley for connection of the electrical
supply.
OPTIONAL FEATURES
• Built-in, externally adjustable thermostat
• Built-in disconnect
• Moisture-resistant construction
• “Auto/off/fan-only” switch
• Pilot light
• Manual reset high limit
THERMOSTATS
CCI Thermal offers a wide variety of explosion-proof thermostats
to suit most every need. NORSEMAN™ unit heaters are available
with optional built-in, externally adjustable, bulb type thermostats
which are field-convertible to tamper-proof. Thermostats for remote
mounting can also be provided on request.
MOTORS
Fractional horsepower, 1725 rpm explosion-proof motor with double
shielded ball bearings and built-in thermal overload. Small cabinet
units use 1/12 hp motor approved for Class I, Group D; Class II,
Group E, F, and G. Large cabinet units use 1/2 hp motor approved
for Class I, Groups C and D; Class II, Groups E, F & G, as standard.
ACCESSORIES
NORSEMAN™ explosion-proof unit heaters readily adapt to most
mounting requirements. Each heater is equipped with a basic swivel
bracket that is compatible with any of the optional mounting kits.
Optional mounting kits allow the unit to be installed on a wall ceiling,
3” pipe, or floor stand. Each mounting configuration provides
maximum flexibility for outlet flow direction. The swivel bracket
(standard on all heaters) features holes for affixing a safety chain.
Part No. 11110 - Rev. 02
STANDARD FEATURES, SMALL CABINET UNIT:
1) 1/12 hp explosion-proof motor
2) Inlet
guard
STANDARD
FEATURES,
SMALL CABINET UNIT:
3) Extra heavy wall tubular steel finned heating elements with
nickel plated finish
1) 1/12 hp explosion-proof
motor
Patented x-Max® explosion-proof terminal housing
2) Inlet4)
guard
120V
control
circuit
3) Extra5)heavy
wall
tubular
steelincludes:
finned heating elements with
plated
• Derated
nickel
finish magnetic contactor
• x-Max®
Dual automatic
reset highterminal
limits housing
4) Patented
explosion-proof
• Transformer
5) 120V control
circuit includes:
6)• Derated
Heavy duty
16 ga.contactor
stainless steel casing
magnetic
7)• Dual
Outlet
louver assembly
automatic
reset high limits
8)• Transformer
Swivel bracket
9) duty
Factory
installed
conduit
6) Heavy
16 ga.
stainless
steel seal
casing
10)louver
Supply
connection housing
7) Outlet
assembly
11)bracket
Terminal block for supply wiring and thermostat connection
8) Swivel
9) Factory installed conduit seal
10)Supply connection housing
11)Terminal block for supply wiring and thermostat connection
Figure 1A - Small Cabinet XGB Unit Heater Components
Figure 1A - Small Cabinet XGB Unit Heater Components
STANDARD FEATURES, LARGE CABINET UNIT:
STANDARD FEATURES, LARGE CABINET UNIT:
1) 1/2 hp explosion-proof motor
2) explosion-proof
Inlet wire guardmotor
1) 1/2 hp
3)
2) Inlet wireExtra
guardheavy wall tubular steel finned heating elements with
nickel
plated
finish
3) Extra heavy
wall
tubular
steel
finned heating elements with
®
4)plated
Patented
nickel
finishx-Max explosion-proof terminal housing
5) 120V
control
circuit includes:
4) Patented
x-Max®
explosion-proof
terminal housing
•
Derated
magnetic
5) 120V control circuit includes:contactor
• Derated
• Dual automatic
high limits
magnetic reset
contactor
• Dual
• Transformer
automatic reset high limits
• Transformer
• Fan delay relay
• Fan
• Control
fuse
delay relay
6)• Control
Heavy fuse
duty 16 ga. stainless steel casing
7) duty
Outlet
louver
assembly
6) Heavy
16 ga.
stainless
steel casing
8) louver
Swivel
bracket
7) Outlet
assembly
9) bracket
Factory installed conduit seal
8) Swivel
10)
Supply
housing
9) Factory installedconnection
conduit seal
11)
Terminal
block
for
supply
wiring and thermostat connection
10)Supply connection housing
12) Motor
mount
11)Terminal
block for
supply wiring and thermostat connection
13)mount
Motor mount casing
12)Motor
13)Motor mount casing
Figure 1B
1B -- Large
Large Cabinet
Cabinet XGB
XGBUnit
UnitHeater
HeaterComponents
Components
Figure
Part No. 11110 - Rev. 02
2.0 PRE-INSTALLATION
2.0 PRE-INSTALLATION
2.1 Inspect the heater for possible damage due to shipping and
2.0 PRE-INSTALLATION
handling. Claims for shipping damages shall be placed with the
2.1 Inspect the heater for possible damage due to shipping and
carrier.
2.1 Inspect
the heater
for possible
damage
shipping
handling.
Claims
for shipping
damages
shalldue
be to
placed
with and
the
handling. Claims for shipping damages shall be placed with the
carrier.
2.2 Check the heater nameplate to ensure that the heater area
carrier.
classification and temperature code are suitable for the hazardous
2.2 Check the heater nameplate to ensure that the heater area
area classification.
2.2 Check the
heater
nameplate
ensure
thatforthe
area
classification
and
temperature
codetoare
suitable
theheater
hazardous
classification
and temperature code are suitable for the hazardous
area
classification.
2.3 Verify that the nameplate voltage, phase and wattage are as
area classification.
ordered and are the same as the electrical power supply available.
2.3 Verify that the nameplate voltage, phase and wattage are as
DO NOT CONNECT THE XGB UNIT HEATER TO A SUPPLY
2.3 Verify
that
voltage,
phase
andsupply
wattage
are as
ordered
and
arethe
thenameplate
same as the
electrical
power
available.
VOLTAGE OTHER THAN THAT SHOWN ON THE PRODUCT
ordered
are the same
the electrical
power supply
DO
NOTand
CONNECT
THEasXGB
UNIT HEATER
TO A available.
SUPPLY
NAMEPLATE.
DO NOT CONNECT
THE THAT
XGB UNIT
HEATER
TO A
SUPPLY
VOLTAGE
OTHER THAN
SHOWN
ON THE
PRODUCT
VOLTAGE OTHER THAN THAT SHOWN ON THE PRODUCT
NAMEPLATE.
3.0 INSTALLATION AND MOUNTING
NAMEPLATE.
3.0The
INSTALLATION
AND
MOUNTING
heater must be
installed
by qualified personnel in strict
3.0compliance
INSTALLATION
AND
MOUNTING
with the electrical
code.
The heater must be installed by qualified personnel in strict
The
must
be electrical
installed code.
by qualified personnel in strict
compliance
with the
3.1heater
DIMENSIONS
compliance
with
the
electrical
code.
Table 1: Dimensions and Weights (See Fig. 2)
3.1 DIMENSIONS
3.1 DIMENSIONS
Table
1: Dimensions and Weights (See Fig. 2)
Weight
A
C
D2
Table 1: Dimensions
and BWeights (See
Fig. D2)
lbs (kg)
A
B
C
A
B
C
D1
D1
Small 1 6 - 716
Small
/ 8- 7/8
8 - 7 / 8 8 -27/8
5 - 3 - / 125
6 -13/16
7-1/2
Cabinet
(429)
(225)
(640)
Small
1( 4
62
- 79/)8 (82- 27 5/ 8) 2 5
74
- 15/)2
Cabinet
( 6- 3
4 -0/)1 6 1( 4
Cabinet
(429)
(225)
(640)
D2
Weight
D2
17-1/2
(445)
-
lbs
(kg)
Weight
(14050)
10-15
( 4 5 )kW
(445)
Large
20-1/8 8-7/8
29-1/4
Large
Cabinet
1/)8- 1/8
(82- 27 5/ 8) 8 - 7/8
Large
2( 5
01
- 120
2( 7
94
- 13/)4 29 - 1/4
Cabinet
Cabinet
(511)
(225)
(743)
lbs1 0(kg)
-0
3 1 - 1 / 4 10-15
145 (66)
kW
31 1/4
kW
3( 7
19
- 14/)4 20-35
145 (66)
(794)
185 (84)
( 7 9 4 ) 20-35
kW
185 (84)
B
B
100
(45)
10-15 kW
145 (66)
20-35 kW
185 (84)
3.2 MOUNTING
3.2 MOUNTING
3.2.1 NORSEMAN™ explosion-proof unit heaters can be mounted
3.2 MOUNTING
to a ceiling, wall 3” pipe, or floor stand. Ensure that the mounting
3.2.1 NORSEMAN™ explosion-proof unit heaters can be mounted
surface is sufficiently strong to support the heater, which, depending
3.2.1
NORSEMAN™
explosion-proof
unitEnsure
heatersthat
canthe
be mounting
mounted
to
a ceiling,
wall 3” pipe,
or floor stand.
on the model, could weigh up to 185lbs, (84kg). See 3.1 for heater
to a ceiling,
wall 3” pipe,
ortofloor
stand.
thedepending
mounting
surface
is sufficiently
strong
support
theEnsure
heater, that
which,
dimensions and weights.
surface
is sufficiently
strongup
to to
support
the(84kg).
heater,See
which,
on
the model,
could weigh
185lbs,
3.1depending
for heater
on the model,
weigh up to 185lbs, (84kg). See 3.1 for heater
dimensions
andcould
weights.
3.2.2 The heater must be positioned with a minimum 15 cm (6”)
dimensions and weights.
side clearance from all surrounding surfaces and must be mounted
3.2.2 The heater must be positioned with a minimum 15 cm (6”) side
at least 61 cm (24”) from the floor for small cabinet units, or 2440
3.2.2 The heater
must
be positioned
with aand
minimum
15 cm
(6”) side
clearance
from all
surrounding
surfaces
must be
mounted
at
cm (96”) from the floor for large cabinet units. It is best to maximize
clearance
surrounding
surfaces
and must
be mounted
at
least
61 cmfrom
(24”)allfrom
the floor for
small cabinet
units,
or 2440 cm
clearances to allow freedom of rotation. Ensure that airflow into
least 61
cmthe
(24”)
from
floor
for small
cabinet
units,toormaximize
2440 cm
(96”)
from
floor
forthe
large
cabinet
units.
It is best
and out of the unit is not restricted.
(96”) from the
floor freedom
for largeofcabinet
units.
It is best
maximize
clearances
to allow
rotation.
Ensure
that to
airflow
into
clearances
to allow
freedom
of rotation. Ensure that airflow into
and
out of the
unit is
not restricted.
3.2.3 All mounting studs, bolts, nuts and other fasteners shall be
and out of the unit is not restricted.
secured so that there is no possibility of loosening over prolonged
3.2.3 All mounting studs, bolts, nuts and other fasteners shall be
periods. Periodically inspect at regular intervals and retighten if
3.2.3 All so
mounting
studs,
nuts and
other fasteners
shall be
secured
that there
is nobolts,
possibility
of loosening
over prolonged
necessary.
secured soPeriodically
that there is
no possibility
of loosening
overretighten
prolonged
periods.
inspect
at regular
intervals and
if
periods. Periodically inspect at regular intervals and retighten if
necessary.
3.2.4 All standard mounting kits are designed to support the heater
necessary.
on its centre of gravity and to allow for 30º tilt in the vertical direction
3.2.4 All standard mounting kits are designed to support the heater
and 360 º rotation in the horizontal. Note that horizontal rotation is
3.2.4
standard
mounting
arefor
designed
support
heater
on
its All
centre
of gravity
and tokits
allow
30º tilt intothe
verticalthe
direction
fixed after the ceiling bracket is bolted to its support.
on its360
centre
of gravity
andhorizontal.
to allow forNote
30º tilt
the verticalrotation
direction
and
º rotation
in the
thatinhorizontal
is
and 360
rotation
in bracket
the horizontal.
horizontal rotation is
fixed
afterº the
ceiling
is boltedNote
to itsthat
support.
3.2.5 For specific mounting instructions refer to the appropriate
fixed after the ceiling bracket is bolted to its support.
paragraph of section 3.3.
3.2.5 For specific mounting instructions refer to the appropriate
3.2.5 For of
specific
instructions refer to the appropriate
paragraph
sectionmounting
3.3.
3.2.6 If lifting with slings, take special care not to damage the
paragraph of section 3.3.
casing.
3.2.6 If lifting with slings, take special care not to damage the casing.
3.2.6 If lifting with slings, take special care not to damage the casing.
3.2.7 For large cabinet units, leave the heater on the shipping skid
3.2.7 For large cabinet units, leave the heater on the shipping skid
and use the skid as a lifting platform to facilitate installation of the
3.2.7use
Forthe
large
cabinet
units, platform
leave thetoheater
on installation
the shipping
and
skid
as a lifting
facilitate
ofskid
the
heater.
and use the skid as a lifting platform to facilitate installation of the
heater.
heater.
C
C
A
A
D1
D1
D2
D2
AIRFLOW
AIRFLOW
Figure 2 - XGB Heater Dimensions
Figure 2 - XGB Heater Dimensions
Part No. 11110 - Rev. 02
2.0 PRE-INSTALLATION
3.3 MOUNTING WITH STANDARD KITS
3.2 MOUNTING
2.1 Inspect the heater for possible damage due to shipping and
3.3.1 CEILING MOUNTING
handling. Claims for shipping damages shall be placed with the
carrier.
a) Install the ceiling bracket to the mounting surface with the desired
3.3
MOUNTING
WITHthat
STANDARD
orientation.
Ensure
‘LINE A”KITS
(Figure 3), a line drawn
2.2 Check the heater nameplate to ensure that the heater area
perpendicular to the bolt holes in the mounting bar, is pointed in the
classification
andMOUNTING
temperature code are suitable for the hazardous
3.3.1
CEILING
desired
direction
of airflow. The ceiling bracket must be secured to
area classification.
the mounting surface using as many as six (but not less than two)
a)
Install
the ceiling
to the
mounting
with the desired
5/8”
fasteners
(not bracket
provided).
Make
certainsurface
that lockwashers
are
2.3
Verify that Ensure
the nameplate
voltage,
as
orientation.
‘LINE
A” phase
(Figureand3),wattage
a linearedrawn
used under all
nuts orthat
lag bolts.
ordered
and
are
the
same
as
the
electrical
power
supply
available.
perpendicular to the bolt holes in the mounting bar, is pointed in the
DO
NOT CONNECT
THE XGB
UNIT bracket
HEATER TO be
A secured
SUPPLYto
desired
airflow.
ceiling
b) Hoist direction
the heaterofup
to the The
ceiling
bracket. Line must
up the large
centre
VOLTAGE
OTHER
THAN
THAT
SHOWN
ON
THE
PRODUCT
the
surface
using
as the
many
ashole
six (but
notmounting
less than
two)
holemounting
in the swivel
bracket
with
large
in the
bar.
NAMEPLATE.
5/8” fasteners (not provided). Make certain that lockwashers are
used
under
all1/2”
nutsbolt
or lag
bolts.
c) Insert
the
and
loosely secure with nut and washers
3.0 INSTALLATION AND MOUNTING
provided. Tilt the heater at the desired angle to the horizontal and
b)
Hoist with
the heater
to the
ceilingthe
bracket.
Line up the large centre
secure
the 3/8”upbolt.
Tighten
1/2” bolt.
The
must be
installed
by large
qualified
personnel
in strict
holeheater
in the swivel
bracket
with the
hole in
the mounting
bar.
compliance with the electrical code.
3.2.1 NORSEMAN™ explosion-proof unit heaters can be mounted
3.3.2 WALL MOUNTING
to a ceiling, wall 3” pipe, or floor stand. Ensure that the mounting
surface is sufficiently strong to support the heater, which, depending
a) Install the ceiling bracket to the wall bracket with the desired
on the model, could weigh up to 185lbs, (84kg). See 3.1 for heater
orientation. Ensure that “LINE A” (Figure 4), a line drawn
dimensions and weights.
perpendicular to the bolt holes in the mounting bar, is pointed in the
3.3.2 direction
WALL MOUNTING
desired
of air flow. Secure the wall bracket to the mounting
3.2.2 The heater must be positioned with a minimum 15 cm (6”) side
surface. The wall bracket must be secured to the mounting surface
clearance
from
all surrounding
surfaces
and
must be
at
a) Install
the as
ceiling
bracket
to
the
wall
bracket
withmounted
the desired
using
as many
six (but
not less
than
four)
5/8” fasteners
(not
least
61 cm (24”)
from the
floor
for small
cabinet units,
orline
2440drawn
cm
orientation.
Ensure
that
“LINE
A”
(Figure
4),
a
provided). Make certain that lockwashers are used under all nuts
(96”) from the floor
large
cabinet
It is bar,
bestis to
maximize
to theforbolt
holes
in the units.
mounting
pointed
in the
or perpendicular
lag bolts.
clearances
to
allow
freedom
of
rotation.
Ensure
that
airflow
into
desired direction of air flow. Secure the wall bracket to the mounting
and out ofThe
the unitbracket
is not restricted.
must in
be3.3.1.
secured to the mounting surface
b) surface.
Follow steps wall
b) and c) outlined
using as many as six (but not less than four) 5/8” fasteners (not
3.2.3
All mounting
studs, that
bolts,
nuts and other
fasteners
beor
provided).
Make certain
lockwashers
are used
under shall
all nuts
secured
so
that
there
is
no
possibility
of
loosening
over
prolonged
lag bolts.
periods. Periodically inspect at regular intervals and retighten if
necessary.
b) Follow steps b) and c) outlined in 3.3.1.
c) Insert the 1/2” bolt and loosely secure with nut and washers
3.1
DIMENSIONS
provided.
Tilt the heater at the desired angle to the horizontal and
Table
1: Dimensions
Fig.bolt.
2)
secure
with the 3/8”and
bolt.Weights
Tighten(See
the 1/2”
A
B
C
D1
D2
Weight
lbs (kg)
Small
16-7/8
8-7/8
Cabinet
(429)
(225)
25-3-/16 17-1/2
(640)
-
100
(445)
(45)
10-15 kW
Large
20-1/8
8-7/8
29-1/4
Cabinet
(511)
(225)
(743)
LIN
CEILING BRACKET
MOUNTING BAR
3/8” Flat Washer, Lock Washer, Nut
1/2” Flat Washer, Lock Washer, Nut
EA
-
31-1/4
145 (66)
( 7 9 4 ) MOUNTING
20-35 kW SURFACE
185
11/16”(84)
Dia. Mounting Holes
3/8” bolt
1/2” bolt
B
SWIVEL MOUNTING BRACKET
3.2.4 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 bracketMOUNTING
is boltedSURFACE
to its support.
11/16” dia. mounting holes
3.2.5 For specific mounting instructions refer to the appropriate
5/8” flatwasher, lockwasher, nut
paragraph of section 3.3.
WALL BRACKET
3.2.6 If lifting with slings, take special care not to damage the casing.
5/8” Bolt
1/2” Bolt
MOUNTING BAR
SWIVEL MOUNTING BRACKET
C
Figure 3 - Ceiling Mounting
Figure 4 - Wall Mounting
A
A
E
3.2.7 For large cabinet units, leave the
LIN heater on the shipping skid
3/8” Bolt
CEILING BRACKET
and use the skid as a lifting platform to facilitate
installation of the
5/8” Bolt
heater.
D1
D2
AIRFLOW
Figure 2 - XGB Heater Dimensions
3/8” flatwasher, lockwasher, nut
1/2” flatwasher, lockwasher, nut
Part No. 11110 - Rev. 02
2.03.3.3
PRE-INSTALLATION
POST MOUNTING
3.3.3 POST MOUNTING
3.2 MOUNTING
3.3.4
FLOOR STAND MOUNTING
3.3.4 FLOOR STAND MOUNTING
2.1a)Inspect
the ceiling
heater bracket
for possible
due to
shipping
and
Install the
to thedamage
wall bracket
with
the desired
a) InstallClaims
the ceiling
bracket to
the wallshall
bracket with thewith
desired
handling.
for shipping
damages
the
orientation. Ensure
that “LINE
A” (Figurebe5),placed
a line drawn
orientation. Ensure that “LINE A” (Figure 5), a line drawn
carrier.
perpendicular to the bolt holes in the mounting bar, is pointed in
perpendicular to the bolt holes in the mounting bar, is pointed in the
the desired direction of air flow. Secure the wall bracket to the post
desired
direction
of air flow. Secure to
theensure
wall bracket
to the
post using
2.2
Check
the heater
that the
heater
area
using
the 1/2”
U-bolts,nameplate
nuts and washers
supplied.
Make
certain
the
the
1/2”
U-bolts,
nuts
and
washers
supplied.
Make
certain
the
classification
code
are
lockwashersand
aretemperature
used under all
nuts
or suitable
lag bolts.for the hazardous
lockwashers
are used under all nuts or lag bolts.
area
classification.
b) Follow steps b) and c) outlined in 3.3.1.
b) Follow
stepsthe
b) and
c) outlined
in 3.3.1.
2.3
Verify that
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.
3.2.1
NORSEMAN™
explosion-proof
unit heaters
can
mounted
a)
At times
adequate support
for the heater
may not
bebe
available
a) aAt
times wall
adequate
support
forstand.
the heater
may
notthe
bemounting
available
to
ceiling,
3”ofpipe,
or floor
Ensure
that
within
the structure
the space
to be heated.
In this
situation,
the
within
the
structure
of
the
space
to
be
heated.
In
this
situation,
the
surface
is sufficiently
to support
the heater,square
which, tubing
depending
floor
mount
stand maystrong
be desirable.
Telescoping
on
floor
mount
stand
may
be desirable.
Telescoping
square
tubing
on a
on
the
model,
could
weigh
up
to
185lbs,
(84kg).
See
3.1
for
heater
a support base allows the unit to be positioned at the desired height
support base
allows
the unit to be positioned at the desired height
dimensions
and
weights.
above
the floor
anywhere
between 1.8 m (6’) to 3 m (10’).
above the floor anywhere between 1.8 m (6’) to 3 m (10’).
3.0 INSTALLATION AND MOUNTING
3” PIPE (NOT INCLUDED)
The heater must be 1/2”
installed
by qualified personnel in strict
U-bolt
compliance with the electrical code.
1/2” flat washer, lock washer, nut
WALL BRACKET
3.1 DIMENSIONS
Table 1: Dimensions and Weights (See 5/8”
Fig.flatwasher,
2)
lockwasher, nut
A
Small
Cabinet
B
16-7/8
C
D1
D2
8
- 7 /bolt
8 2 5 - 3 - / 1 6 1 7 -L1IN/ E
2
5/8”
( 4 2 91/2”
) bolt
(225)
(640)
(445)
-
A
Weight
lbs (kg)
-
100
CEILING BRACKET
(45)
10-15 kW
3/8” bolt
Large
20-1/8
8-7/8
29-1/4
Cabinet
(511)
(225)
(743)
SWIVEL MOUNTING BRACKET
MOUNTNIG BAR
3 1 - 1 / 4 145 (66)
3/8” flat washer, lock washer, nut
9 4washer,
) 20-35
1/2”( 7flat
lockkW
washer, nut
185 (84)
B
3.2.2
The heater
must
bestand
positioned
15orientation.
cm (6”) side
b)
Position
the base
of the
on the with
floorainminimum
the desired
b) Positionfrom
theallbase
of the stand on and
the must
floor be
in mounted
the desired
clearance
Ensure
that “LINE
A”surrounding
(Figure 6), surfaces
a line drawn perpendicular
to theat
orientation.
Ensure
that
“LINE
A”
(Figure
6),
a
line
drawn
leastholes
61 cm
(24”)
from thebar,
floor
smallincabinet
units,direction
or
2440
cm
bolt
in the
mounting
is for
pointed
the desired
of
perpendicular
to
the for
boltlarge
holescabinet
in the mounting
bar,
is pointed
in the
(96”)
from
the
floor
units.
It
is
best
to
maximize
air flow.
desired direction
of air
flow. of rotation. Ensure that airflow into
clearances
to allow
freedom
and
outthe
of the
unit
is be
notlagged
restricted.
c)
Next,
stand
is to
to a solid floor to prevent the unit
c) Next, the stand is to be lagged to a solid floor to prevent the unit
from toppling. Four 11/16” diameter holes are provided in the base
from toppling.
Four studs,
11/16” diameter
holes
provided
in theshall
basebe
of
3.2.3
All mounting
bolts, nuts
andare
other
fasteners
of
the stand
for this purpose.
the
stand
for
this
purpose.
secured so that there is no possibility of loosening over prolonged
periods.
Periodically
inspect
at regular
intervals
retighten
d)
Raise the
mounting frame
to the
desired height
andand
secure
to the if
d) Raise the mounting frame to the desired height and secure to the
necessary.
base
using the hardware supplied.
base using the hardware supplied.
3.2.4
Allthe
standard
kits are designed
e)
Hoist
heater mounting
up to the mounting
frame. to support the heater
e) its
Hoist
the of
heater
upand
to the
mounting
frame.
on
centre
gravity
to allow
for 30º
tilt in the vertical direction
and
360
º
rotation
in
the
horizontal.
Note
thatnut
horizontal
rotation is
f) Insert the 1/2” bolt and loosely secure with
and lockwashers
f) Insert
boltbracket
and loosely
secure
nut and lockwashers
fixed
afterthe
the1/2”
ceiling
bolted
to
itswith
support.
provided.
Tilt
the
heater
at theisdesired
angle
to the horizontal and
provided. Tilt the heater at the desired angle to the horizontal and
secure with the 3/8” bolt. Tighten the 1/2” bolt.
secureFor
withspecific
the 3/8”mounting
bolt. Tighten
the 1/2” bolt.
3.2.5
instructions
refer to the appropriate
paragraph of section 3.3.
MOUNTING
3.2.6 If lifting with slings, take special care
not to FRAME
damage the casing.
MOUNTING BAR
3/8” flatwasher,
lockwasher, nut
3.2.7 For large cabinet
units, leave the heater
on the shipping
skid
1/2” flatwasher,
lockwasher, nut
3/8” Bolt
and use the skid 1/2”
as Bolt
a lifting platform to facilitate installation of the
heater.
SWIVEL MOUNTING BRACKET
C
Figure 5 - Post Mounting
5/8” Bolt
5/8” flatwasher,
lockwasher, nut
A
D1
EA
D2
AIRFLOW
Figure 6 - Floor
Mounting Stand
Figure 2 - XGB Heater Dimensions
LIN
Part No. 11110 - Rev. 02
OUTLET LOUVRES
2.03.4
PRE-INSTALLATION
3.2 MOUNTING
A louvred
grill on for
the possible
heater outlet
end isdue
supplied
as standard.
2.13.4.1
Inspect
the heater
damage
to shipping
and
The
louver
assembly
may
be
positioned
either
horizontally
handling.
Claims
for shipping damages shall be placed with theor
3.4
OUTLET
LOUVRES
vertically for maximum flexibility.
carrier.
3.4.1 A louvred grill on the heater outlet end is supplied as standard.
Standard
heaters
are shipped
the louvers
in the
horizontal
2.23.4.2
Check
the heater
nameplate
towith
ensure
that the
heater
area
The
louver
assembly
may
be positioned
either
horizontally
or
position.
To
change
the
orientation
of
the
louvers
to
vertical,
remove
classification
and temperature
vertically
for maximum
flexibility. code are suitable for the hazardous
theclassification.
three mounting screws securing the louver assembly to the
area
cabinet and rotate the louver 90º to the desired direction.
3.4.2 Standard heaters are shipped with the louvers in the horizontal
2.3 Verify
the the
nameplate
voltage,
wattageremove
are as
position.
To that
change
orientation
of the phase
louversand
to vertical,
3.5 WIRING
ordered
are thescrews
same as
the electrical
powerassembly
supply available.
the
three and
mounting
securing
the louver
to the
DO NOT
THE 90º
XGB
UNIT
HEATER
TO A SUPPLY
cabinet
and CONNECT
rotate the louver
to the
desired
direction.
CAUTION:
Whenever
hazardous
materials
areTHE
present,
ensure
VOLTAGE
OTHER
THAN
THAT SHOWN
ON
PRODUCT
that
the
terminal
housing
covers,
plugs,
etc.,
are
secured
(but
NAMEPLATE.
3.5
WIRING
not over-tightened) before powering the heater.
3.0 INSTALLATION
MOUNTING
CAUTION:
WheneverAND
hazardous
materials are present, ensure
All circuits must be in the open position before removing
that the terminal housing covers, plugs, etc., are secured (but
junction
terminal
box covers.
The
heaterormust
be
installed
by qualified
personnel in strict
not
over-tightened)
before
powering
the heater.
compliance with the electrical code.
3.5.1 The heater must be installed by qualified personnel in strict
All circuits must be in the open position before removing
compliance
with the electrical code.
3.1
DIMENSIONS
junction
or terminal box covers.
Table 1: Dimensions and Weights (See Fig. 2)
3.5.2 All heaters are factory pre-wired and ready for direct
3.5.1 The heater
be installed
by
personnel
in strict
A to must
C
D1 qualified
D2
Weight
connections
theB power supply
leads.
compliance with the electrical code.
lbs (kg)
Small
16-7/8 8-7/8 25-3-/16 17-1/2
100
3.5.3
The
heater must be individually fused,
preferably
with Class
3.5.2
All heaters
are
factory
pre-wired
and ready
for direct
Cabinet
(
4
2
9
)
(
2
2
5
)
(
6
4
0
)
(
4
4
5
)
(
4 5 ) otherwise
J time-delay fuses for maximum safety. Unless stated
in
connections to the power supply leads.
kWor next size
your local code, fuse size shall be 125% of line 10-15
current
Large
20-1/8 8-7/8
29-1/4
3 1 - 1 / 4 145 (66)
larger. See
Table 2 for recommendations.
3.5.3
The heater
fused,( 7preferably
with Class J
Cabinet
( 5 1 1 ) must
( 2 2 5be
) individually
(743)
9 4 ) 20-35 kW
time-delay fuses for maximum safety. Unless stated
otherwise in
185 (84)
3.5.4 Use approved conduit and conduit seals are required by the
your local code, fuse size shall be 125% of line current or next size
code for the hazardous location.
larger. See Table 2 for recommendations.
B
3.5.5 The NORSEMAN™ explosion-proof unit heaters are equipped
3.5.4 Use approved conduit and conduit seals are required by the
with a factory installed conduit seal between the control and supply
code for the hazardous location.
housings. In Division 2, Zone 1 and Zone 2 applications, a field
installed conduit seal may not be required.
3.5.5 The NORSEMAN™ explosion-proof unit heaters are equipped
with a factory installed conduit seal between the control and supply
3.5.6 Supply wiring connections are made by accessing the over of
housings. In Division 2, Zone 1 and Zone 2 applications, a field
the side mounted supply connection housing (terminal box). Slide
installed conduit seal may not be required.
the control trolley out of the housing just enough to access the
terminal block (Figure 8).
3.5.6 Supply wiring connections
are made by accessing the over of
C
the side mounted supply connection housing (terminal box). Slide
3.5.7 Connect the power leads to terminals marked L1and L2 for
the control trolley out of the housing just enough to access the
single phase and L1, L2 and L3 for three phaseheaters making
terminal block (Figure 8).
certain to leave some excess wire to ensure that the leads may
slide back into the housing with the trolley. See Figure 9 for control
3.5.7 Connect the power leads to terminals marked L1and L2 for
circuit and Figure 10 for suggested wiring. Exercise care to avoid
single phase and L1, L2 and L3 for three phaseheaters making certain
damage to wires caused by threads on the housing.
to leave some excess wire to ensure that the leads may slide back
into the housing with the trolley. See Figure 9 for control circuit and
Figure 10 for suggested wiring. Exercise care to avoid damage to
wires caused by threads on the housing.
A
Recommended Fuse
Max Line Amps
Size (Amps)
Catalog
3.2.1
NORSEMAN™
explosion-proof unit heaters can
be mounted
kW
Voltage
Number
to a ceiling, wall 3” pipe, or floor
that
1 Ø stand. 3Ensure
Ø
1 Ø the mounting
3Ø
surface
is sufficiently
strong
to
support
the
heater,
which,
depending
Table
2: Recommended
Fuse
Sizes
3.75
208
19
11
25
15
onXGB038T3B
the model, could weigh
up to17185lbs, 10
(84kg). See
240
25 3.1 for15heater
Recommended
480
6
10
dimensions
and weights.
Catalog Number
kW 600
Voltage
Max
Fuse Size
- Line Amps
5
10
5
208
25
15
10
2084 8 0
240
43
-
7 29
6002 0 8
-
2 911
6004 8 0
--
1 320
4804 8 0
600
--
4804 8 0
6006 0 0
---
(Amps)
35
20
3.2.2 The heater must240
be positioned
1 Ø with
3 Øa
1 Ø 30 15
3 Ø cm (6”)
22
13 minimum
20 side
XGB050T3B
4802 0 8
-surfaces
- be
10
clearance
from all
surrounding
at
XGB038T3B
3.75
19
1 1 7and 2must
5
1 5 mounted
600
10
2 4 0 floor -for
1 7 small
1 0 6cabinet
2 5 units,
1 5 or 2440
least 61 cm (24”) from the
cm
6 22
2084 8 0
3750 1 0
30
(96”) from the7.5floor for
large cabinet
units.
It --is best
to maximize
2406 0 0
3240 1 0
25
5 19
XGB075T3A
clearances
to
allow
freedom
of
rotation.
Ensure
that
airflow
480
10
15 into
XGB050T3B
5
208
25
15
35
20
8
10
and out of the unit is600
not
2 4 0restricted.
22
13
30
20
10
40
35
- 40
15
-
- 20
25
1 931
-
- 25
-
40
35
2 537
2 030
-
- 35
- 25
50
40
45
25
-
60
600
6 other
- fasteners
10
XGB100T2C
3.2.3
All mounting studs,
shall
be
480 bolts, - nuts and
13
20
XGB075T3A
7 . 5 6002 0 8
3
7
2
2
5
0
3
0
15
secured so that there is no possibility
of 11loosening- over
prolonged
240
32
19
40
25
10
208
- and
40
periods. Periodically
inspect
at- - regular
if
480
1 030intervals
1 5 retighten
240
47
26
60
35
XGB100T3B
necessary.
600
8
10
480
13
20
XGB100T2C
10
2 4 0 kits 4
3
25
6to
0 support
3 5 the heater
3.2.4 All standard
mounting
15
208
-are designed
44
60
480
1 338
20
-vertical direction
50
onXGB150T3B
its centre of gravity240
and
to
allow
for
30º
tilt
in
the
6
0
0
1
1
1
5
480
19
25
andXGB100T3B
360 º rotation1 0in the
horizontal.
Note
that
horizontal
rotation
is
6002 0 8
-- 40
20
3 015
fixed after the 20
ceiling bracket
is
bolted
to
its
support.
2
4
0
4
7
2
6
6
0
3
5
480
25
35
XGB200T3B
600
11
15
3.2.5 For specific
mounting
instructions
22.5
480
28 refer to - the appropriate
35
XGB225T3A
XGB150T3B
1 5 6002 0 8
4 423
60
30
paragraph of section 3.3.2 4 0
38
50
25
XGB250T2D
25
00
1 5 not to
- damage
20
3.2.6 If lifting with slings,6 take
special
care
the casing.
XGB200T3B
XGB300T2D
30
20
3.2.7 For large cabinet units, leave the heater on the shipping skid
-40
- 35
50
XGB225T3A 32.5 22.5 4804 8 0
XGB325T2D
and
use the skid as a60lifting
platform
to22 83facilitate
installation
-32
- 30
40 of the
600
heater.
XGB250T2D 35 2 5 4804 8 0
3 143
-- 40
60
XGB350T2C
6006 0 0
--
2 534
-
- 35
XGB300T2D
30
480
600
-
37
30
-
50
40
XGB325T2D
32.5
480
600
-
40
32
-
50
40
XGB350T2C
35
480
600
-
43
34
-
60
45
TERMINAL BLOCK
D1
D2
Figure 8 - XGB Terminal Block Trolley Figure
AIRFLOW
Figure 2 - XGB Heater Dimensions
Part No. 11110 - Rev. 02
L3
C
L3
1 L3
OR 3Ø L2
1 OR 3Ø L2
1 OR 3ØSUPPLY
SUPPLY
L2
L1
L1
SUPPLY
L1
C
C
H3
H3
HEATING
H3
H2 TOTO
HEATING
H2 LOAD
LOAD
H2 TO HEATING
H1
H1
LOAD
H1
REMOVE JUMPER FOR
REMOVE JUMPER FOR
OPTIONAL
THERMOSTAT
REMOVE
JUMPER
FOR
OPTIONAL
THERMOSTAT
X1
X1
OPTIONAL THERMOSTAT
X1
120V T1
T2 HI-LIMITS
120V T1
T2 HI-LIMITS
C
C
120V T1
HI-LIMITS
X2 T2 C/AUX
X2
C/AUX C
M
X2
C/AUX
M
C NO
MOTOR
C NO M
MOTOR
C NO
MOTOR
Figure
9A9A
- Small
Cabinet
XGB
Wiring
Schematic
Figure
- Small
Cabinet
XGB
Wiring
Schematic
Figure 9A - Small Cabinet XGB Wiring Schematic
1 OR 3Ø
1 OR 3Ø
SUPPLY
SUPPLY 3Ø
1 OR 3Ø
SUPPLY L3 L2 L1
3ØL2ONLY
L3
L1
L3 L2 L1
C
L1
L1
L2
L1
L2
L3
L2
L3
ONLY
3Ø ONLY
C
C
X1
H1
H1 HEATING
H2 TOTO
HEATING
H1
H2 LOAD
H3
LOAD
H2 TO HEATING
H3
LOAD
H3
REMOVE JUMPER FOR
REMOVE JUMPER FOR
OPTIONAL
REMOVE
JUMPERTHERMOSTAT
FOR
X1
OPTIONAL
THERMOSTAT
X1
OPTIONAL
THERMOSTAT
120V
HI-LIMITS
120V
X2
L3
X2
3
5
FD
1
4
120V
X2
T1 T2
3
5
HI-LIMITS
T1 T2
T1 T2
C
C
FD
FD
1FD
1
3
4
5
4
M
HI-LIMITS
C
FD
FD
MM
3Ø ONLY
3Ø ONLY
3Ø ONLY
4.04.0
TEMPERATURE
CONTROL
TEMPERATURE
CONTROL
4.0
4.0 TEMPERATURE
TEMPERATURE CONTROL
CONTROL
4.14.1
BUILT-IN
THERMOSTAT
(OPTIONAL)
BUILT-IN
THERMOSTAT
(OPTIONAL)
4.1
4.1 BUILT-IN
BUILT-IN THERMOSTAT
THERMOSTAT (OPTIONAL)
(OPTIONAL)
When
specified,
thethe
unit
comes
equipped
with
a built-in
thermostat
When
specified,
unit
comes
equipped
with
a built-in
thermostat
When
specified,
the
comes
equipped
with
thermostat
Whenpre-wired
specified,to
the
unit
comes
equipped
withaSet
abuilt-in
built-in
thermostatto the
allunit
other
standard
controls.
thethe
temperature
pre-wired
to
all
other
standard
controls.
Set
temperature
to the
pre-wired
to
all
other
standard
controls.
Set
the
temperature
to
the
pre-wired
to all
other standard
controls. Set the temperature to the
desired
operating
condition.
desired
operating
condition.
desired
desired operating
operating condition.
condition.
4.24.2
REMOTE
THERMOSTAT
(OPTIONAL)
REMOTE
THERMOSTAT
(OPTIONAL)
4.2
4.2 REMOTE
REMOTE THERMOSTAT
THERMOSTAT (OPTIONAL)
(OPTIONAL)
Install
thethe
XTXT
thermostat
in in
accordance
with
thethe
instruction
sheet
Install
thermostat
accordance
with
instruction
sheet
Install
the
in“T1”
with
the
instruction
sheet
Installprovided.
the XT
XTthermostat
thermostat
inaccordance
accordance
with
the
instruction
sheet are
Terminals
and
“T2”
in
the
heater
supply
housing
provided.
Terminals
“T1”
and
“T2”
in
the
heater
supply
housing
are
provided.
Terminals
“T1”
ininthe
supply
are
provided.
Terminals
“T1”and
and“T2”
“T2”
theheater
heater
supplyhousing
housing
are
provided
forfor
connection
to
the
remote
thermostat
and
areare
pre-wired
provided
connection
to
the
remote
thermostat
and
pre-wired
provided
for
connection
to
the
remote
thermostat
and
are
pre-wired
provided
for rest
connection
to the remote
thermostat
and
are pre-wired
to to
the
of of
thethe
control
circuit.
Remove
the
jumper
wire
between
thethe
rest
control
circuit.
Remove
the
jumper
wire
between
to
rest
of
control
circuit.
the
wire
between
to the
the“T1”
restand
of the
control
circuit.Remove
Remove
thejumper
jumper
wire
between(Refer
“T2”
and
connect
the
thermostat
to
these
terminals.
“T1”
and
“T2”
and
connect
the
thermostat
to
these
terminals.
(Refer
“T1”
“T2”
connect
the
terminals.
(Refer
“T1”and
and
“T2”and
and
connect
thethermostat
thermostat
tothese
these
terminals.
(Refer
to to
Figure
9).9).
Set
thethe
temperature
toto
the
desired
operating
condition.
Figure
Set
temperature
to
the
desired
operating
condition.
to
Figure
9).
Set
the
temperature
to
the
desired
operating
condition.
to Figure 9). Set the temperature to the desired operating condition.
5.05.0
“AUTO
/ OFF
/ FAN-ONLY”
SWITCH
(OPTIONAL)
“AUTO
/ OFF
/ FAN-ONLY”
SWITCH
(OPTIONAL)
5.0
5.0 “AUTO
“AUTO // OFF
OFF // FAN-ONLY”
FAN-ONLY” SWITCH
SWITCH (OPTIONAL)
(OPTIONAL)
If ordered,
a factory
installed
“auto
/ off
/ fan-only”
switch
may
bebe
If ordered,
ainstalled
factory
installed
“auto
/ off
/ fan-only”
switch
may
IfIf ordered,
aa factory
“auto
/ /off
switch
may
be
ordered,
factory
installed
“auto“fan-only”
off/ /fan-only”
fan-only”
switch
may
be
included
on
the
heater.
The
feature
allows
the
heater
to to
included
on theThe
heater. The “fan-only”
feature
allows
the heater
included
on
the
heater.
feature
allows
heater
included
onin
the
heater.mode
The“fan-only”
“fan-only”
feature
allowsthe
the
heatertoto even
cycle
a
“heat”
dictated
by
the
controlling
thermostat,
cycle in mode
a “heat”
mode dictated
by the controlling thermostat,
even
cycle
the
cycle in
in aa“heat”
“heat”
mode
dictatedby
by
thecontrolling
controllingthermostat,
thermostat,even
even
though
thethe
fan
is dictated
operating
continuously.
though
fan
is
operating
continuously.
though
the
fan
is
operating
continuously.
though the fan is operating continuously.
6.06.0
NORMAL
SEQUENCE
OFOF
OPERATION
NORMAL
SEQUENCE
OPERATION
6.0
6.0 NORMAL
NORMAL SEQUENCE
SEQUENCE OF
OF OPERATION
OPERATION
6.16.1
The
heater
must
bebe
properly
mounted
and
wired
in in
accordance
The
heater
must
properly
mounted
and
wired
accordance
6.1
heater
must
mounted
and
ininaccordance
6.1 The
The
heater
mustbe
beproperly
properly
mounted
andwired
wired
accordance
with
the
instructions
contained
in
this
manual.
The
fan
blade
must be
with
the
instructions
contained
in
this
manual.
The
fan
blade
with
instructions
contained
in this
this manual.
manual.
The
fan
blade
mustbemust be
with the
the
instructions
contained
in
The
fan
blade
must
free
to
rotate
with
no
obstruction
to
air
inlet
or
outlet
areas.
free
to rotate
with
no obstruction
to
air or
inlet
or outlet
areas.
be
free
to
rotate
with
obstruction
to air
inlet
outlet
areas.
free
to rotate
with
no no
obstruction
to air
inlet
or outlet
areas.
Figure
9B9B
- Large
Cabinet
XGB
Wiring
Schematic
Figure
- Large
Cabinet
XGB
Wiring
Schematic
Figure 9B - Large Cabinet XGB Wiring Schematic
6.26.2
Energize
thethe
heater
at at
thethe
rated
supply
voltage.
Energize
heater
rated
supply
voltage.
3.5.8 Connect the ground wire to the ground connection located in 6.2
6.2 Energize
Energize the
the heater
heater at
at the
the rated
rated supply
supply voltage.
voltage.
the 3.5.8
supply
connection
housing;
once
again,
making
sure that
the in
Assuming
that
thethe
thermostat
calls forfor
heat,
i.e.i.e.
thethe
thermostat
is is
Connect
thethe
ground
wire
to to
the
ground
connection
located
Assuming
that
thermostat
thermostat
3.5.8
Connect
ground
wire
the
ground
connection
located
in 6.36.3
6.3
that
thermostat
calls
forcalls
heat, i.e.
i.e.heat,
the thermostat
thermostat
wirethe
is sufficiently
long towire
slide
theagain,
housing
withlocated
the
trolley.
3.5.8
Connect
theconnection
ground
toback
the into
ground
connection
in the
6.3 Assuming
Assuming
that the
thetemperature
thermostat that
callsambient:
for
heat,
the
is
setset
to to
a higher
supply
housing;
once
making
sure
that
a
higher
temperature
that
ambient:
the supply connection housing; once again, making sure that
the
is
set
higher
temperature
that
ambient:
Figure
10.
theSee
supply
housing;
once
again,
making
surewith
thatthe
thetrolley.
set
toto
aa
higher
temperature
that
ambient:
wire
isconnection
sufficiently
long
to to
slide
back
into
the
housing
wire
is
sufficiently
long
slide
back
into
the
housing
with the
trolley.
wire isSee
sufficiently
long
to
slide
back
into
the
housing
with
the
trolley.
a) a)
The
main
contactor
willwill
energize
thethe
elements
and
thethe
fanfan
motor.
Figure
10.10.
The
main
contactor
energize
elements
and
motor.
See
Figure
a)
main
contactor
will
energize
the
and
the
See Figure 10.
a)The
Theb)
main
contactor
willair
energize
theelements
elements
thefan
fanmotor.
motor.of the
After
thetheinlet
temperature
rises
toand
the
set
point
b)
After
inlet
air
temperature
rises
to
the
set
point
of the
b)
the
air
temperature
rises
toto the
ofofthe
b) After
After
the inlet
inletthe
airthermostat
temperature
riseswill
theset
setpoint
point
the
thermostat,
contacts
open
and
the
main
contactor
thermostat,
the
thermostat
contacts
will
open
and
the
main
contactor
thermostat,
thethermostat
thermostat
contacts
will
open
and
thecontactor
main
thermostat,
the
contacts
will open
and
the
main
willwill
de-energize
thethe
elements
and
thethe
fan
motor.
TOP
and
TOP
contactor
willde-energize
de-energize
theelements
elements
and
thefan
fanmotor.
motor.
will de-energize
the elements
and the fan
motor.
TOP
LOOP
LOOP
LOOP
SIDE
Note:
The
large
cabinet
XGB
incorporates
a fan
delay
feature
in in
both
Note:
The
large
cabinet
XGB
incorporates
a
fan
delay
feature
both
Note:
The
large
cabinet
XGB
incorporates
fan
delay
feature
init allows
Note: the
The“ON”
large
cabinet
XGB
incorporates
aa
fan
delay
feature
inasboth
and
“OFF”
cycles.
This
is
desirable
feature
the
“ON”
and
“OFF”
cycles.
This
is
a
desirable
feature
as
it
allows
both
the
“ON”
and
“OFF”
cycles.
is before
a desirable
feature
as it(no cold
the “ON”
and “OFF”
cycles.
This This
is a desirable
feature
as it allows
thethe
heater
to to
come
to
temperature
the
fan
operates
heater
come
temperature
before
the
fan
operates
(no cold
allows
the heater
to
come
tototemperature
before
fan
operates
the heater
to and
come
to
temperature
before
the
fanthe
operates
(nofor
cold
blasts)
to
cool
down
the
“OFF”
cycle
(longer
life
control
blasts)
and
to
cool
down
the
“OFF”
cycle
(longer
life
for
contro
(no
cold
blasts)
and
to
coolthe
down
the “ON”
“OFF”is(longer
cycle
(longer
for
blasts)
and
to cool
down
“OFF”
cycle
life
forlife
control
components
and
motor).
Delay
1515
- 40
seconds
and
delay
components
and
motor).
Delay
“ON”
is
40
seconds
and
delay
control
components
andseconds.
motor).
15 seconds
- 40 seconds
components
motor).
DelayDelay
“ON” “ON”
is 15 is
- 40
and and
delay
“OFF”
isand
6060
-160
“OFF”
is
-160
seconds.
delay
“OFF”
is
60
-160
seconds.
“OFF” is 60 -160 seconds.
6.46.4The
above
when
Thecycle
cycledescribed
described
abovewillwillrepeat
repeatthe
whenthetheambient
ambient
6.4
cycle
above
will
when
6.4 The
The
cycle described
described
above
will repeat
repeat
when
theambient
ambient
temperature
falls
below
the
thermostat
set
point.
temperature
falls
below
the
thermostat
set
point.
temperature
temperature falls
falls below
below the
the thermostat
thermostat set
set point.
point.
SIDE
SIDE
Figure
1010
- Supply
Connection
Figure
- Supply
Connection
Figure 10 - Supply Connection
3.5.9 Due to the presence of hazardous materials, ensure that the
3.5.9
Due
to
thethe
presence
of of
hazardous
materials,
that
terminal
housing
covers,
plugs,
etc.,
are
secured
(but notensure
over3.5.9
Due
to
presence
hazardous
materials,
ensure
that
3.5.9
Due
to thehousing
presence
of heater.
hazardous
materials,
ensure that
thethe
terminal
covers,
plugs,
etc.,
are
secured
(but
tightened)
before
powering
the
terminal housing covers, plugs, etc., are secured (butnotnot
the terminal
housingbefore
covers,
plugs, the
etc.,
are secured (but not
over-tightened)
powering
heater.
over-tightened)
before
powering
the
heater.
over-tightened) before powering the heater.
Part No. 11110 - Rev. 02
C
IMPORTANT:
H3
L3
THE
PROPER
MOTOR/FAN
ROTATION,
VIEWED FROM THE
1 OR 3Ø L2
H2 TO HEATING
REAR OF THE HEATER IS COUNTER
LOADCLOCKWISE FOR THE
SUPPLY
L1
SMALL
CABINET UNITS AND H1
CLOCKWISE FOR THE LARGE
CABINET UNITS, AS INDICATED BY THE FAN ROTATION
REMOVE JUMPER FOR
LABEL ON THE HEATER. INCORRECT
ROTATION OF THE
OPTIONAL THERMOSTAT
X1
FAN WILL CAUSE THE
HEATER TO OVERHEAT AND CYCLE
120V T1 CONSULT
T2 HI-LIMITSFACTORY IN CASE OF
ON THE HIGH LIMITS.
C
X2
C/AUX
INCORRECT ROTATION.
M
C NO
MOTOR
7.0 MAINTENANCE
Figure 9A - Small Cabinet XGB Wiring Schematic
7.1 The NORSEMAN™ explosion-proof unit heaters are designed
and constructed to operate in tough industrial applications with a
1 OR 3Ø
minimum of maintenance.
However, some routine maintenance is
SUPPLY
3Ø ONLY
recommended
to
extend
the
life of the heater and its components
L3 L2 L1
C
Always disconnect the electrical
supply before performing
H1
L1
any maintenance.
H2 TO HEATING
L2
L3
H3
LOAD
REMOVE JUMPER FOR
7.2 Periodically inspect the heater
installation to ensure that all
OPTIONAL THERMOSTAT
X1
connections, fittings, plugs,
screws,
covers,
etc. are tight and free
120V
HI-LIMITS
C
of corrosion.
X2
T1 T2
FD
7.3 Check the inside of FDthe
cabinet and around the element fins
1
3
for dust build-up and debris,
especially after seasonal shutdowns.
5
4
M
Clean with an air blast or vacuum. Ensure that nothing is restricting
the air flow into the unit and
that the fan blade is free to rotate.
3Ø ONLY
7.4 MOTOR
Figure 9B - Large Cabinet XGB Wiring Schematic
The motor supplied with the small cabinet units is approved for
Class 1, Group D, Class II, Group E, F & G, T3B temperature code.
TheConnect
motor supplied
withwire
thetolarge
cabinetconnection
units is approved
for
3.5.8
the ground
the ground
located in
I, Group
C & D,housing;
Class II,once
Group
E, F making
& G, T3B
temperature
theClass
supply
connection
again,
sure
that the
code.
All motorslong
havetointernal
thermal
towith
eliminate
motor
wire
is sufficiently
slide back
into protection
the housing
the trolley.
overheating.
See
Figure 10.
7.5 FAN BLADE
TOP
Visually inspect the fan blade to ensure it is free to rotate and
accidental damage has not occurred. If bent or damaged, a factory
balanced blade should be installed so that the rated airflow is
maintained. A damaged fan blade may not deliver the required
airflow over the elements, resulting in cycling on the high limit which
can significantly reduce the life of the contactor and the high limit.
7.6 HEATER CABINET
The XGB unit heater cabinet is stainless steel for superior corrosion
LOOPdown periodically
resistance. We recommend the cabinet be wiped
using a mild detergent.
SIDE
7.7 OVERHEAT PROTECTION
In the10event
of fan
failure, motor damage, excessive dust build-up
Figure
- Supply
Connection
or restricted inlet airflow, the heater temperature may rise, causing
the limit controls to open, breaking the power supply to the heater.
All units
areto
equipped
with two
high limit
controls.
3.5.9
Due
the presence
of automatic
hazardousreset
materials,
ensure
that
the terminal housing covers, plugs, etc., are secured (but not
over-tightened) before powering the heater.
Cycling
of the high limits
should not be permitted.
4.0 TEMPERATURE
CONTROL
Should
this occur,
the unit should
be inspected to determine the
4.1 BUILT-IN
THERMOSTAT
(OPTIONAL)
cause of the cycling and the condition should be corrected.
When specified, the unit comes equipped with a built-in thermostat
8.0
REPLACEMENT
LIST
pre-wired
to all other PARTS
standard
controls. Set the temperature to the
desired operating condition.
The replacement parts list is included for reference only. Due to the
delicate
natureTHERMOSTAT
of explosion-proof
design, XGB unit heaters are not
4.2 REMOTE
(OPTIONAL)
field serviceable. Should any problem arise, return the unit to the
factory
for service
by trained
Install the
XT thermostat
in personnel.
accordance with the instruction sheet
provided. Terminals “T1” and “T2” in the heater supply housing are
SMALL
CABINET
UNITS:to the remote thermostat and are pre-wired
provided
for connection
Transformers
208V
unitsRemove the 208V
units
to the rest of the control
circuit.
jumper
wire between
240Vthe
units
240Vterminals.
units
“T1” and “T2” and connect
thermostat to these
(Refer
480V units to the desired
480V
units condition.
to Figure 9). Set the temperature
operating
600V units
600V units
High
Limits / OFF / FAN-ONLY”
T2C T-Code
units (OPTIONAL)
T2C T-Code units
5.0 “AUTO
SWITCH
T3A T-Code units
T3A T-Code units
T3B T-Code
T3B T-Code
If ordered, a factory installed
“autounits
/ off / fan-only”
switchunits
may be
Motor
units
units the heater to
included on the heater.AllThe
“fan-only” featureAllallows
Contactor
units by the controlling
All units
cycle in a “heat” modeAll
dictated
thermostat, even
Fan
Blade
10 & continuously.
7.5kW units
10 & 7.5kW units
though
the fan is operating
5 & 3.75kW units
5 & 3.75kW units
6.0 NORMAL SEQUENCE OF OPERATION
LARGE
UNITS:
6.1 The CABINET
heater must
be properly mounted and wired in accordance
Transformers
208V units
EXA50-23
with the instructions contained
in this manual. The
fan blade must be
240V unitsto air inlet or EXA50-25
free to rotate with no obstruction
outlet areas.
480V units
EXA50-36
units
EXA50-39
6.2 Energize the heater600V
at the
rated supply voltage.
High Limits
T2C T-Code units
C12023-11
T2D T-Code
units
6.3 Assuming that the thermostat
calls
for heat,C12023-11
i.e. the thermostat is
T3A T-Code
units
C12023-10
set to a higher temperature
that ambient:
T3B T-Code units
C12023-12
Motors
208energize
- 480V 3Ø
1699
a) The main contactor will
theunits
elements
and the fan motor.
1Ø unitsrises to 1979
b) After the inlet air 240V
temperature
the set point of the
600V
units will open and
2433
thermostat, the thermostat
contacts
the main contactor
Contactor
All unitsand the fan motor.
42CF35AF
will de-energize the elements
Fan Blade
All units
10873
Control
Fuse
units
MDL-0.6
Note: The
large cabinetAll
XGB
incorporates a fan
delay feature in both
the “ON” and “OFF” cycles. This is a desirable feature as it allows
the heater to come to temperature before the fan operates (no cold
Ablasts)
CCI Thermal
kit maycycle
be purchased
to replace
a
and to XTK
cool thermostat
down the “OFF”
(longer life
for control
broken
thermostat.
Refer to
installation
provided
components
and motor).
Delay
“ON” is instructions
15 - 40 seconds
and with
delay
the
kit. is 60 -160 seconds.
“OFF”
6.4 The cycle described above will repeat when the ambient
temperature falls below the thermostat set point.
5918 Roper Road, Edmonton, Alberta, Canada T6B 3E1
Phone: (780) 466-3178
Fax: (780) 468-5904
www.ccithermal.com
PLEASE ADHERE TO INSTRUCTIONS PUBLISHED IN THIS MANUAL.
Failure to do so may be dangerous and may void certain provisions of your warranty.
For further assistance, please call:
24 Hr. Hotline: 1-800-661-8529
(U.S.A. and Canada)
Please have model and serial numbers available before calling.
WARRANTY: Under normal use the Company
warrants to the purchaser that defects in material or
workmanship will be repaired or replaced
without charge for a period of 18 months from
date of shipment, or 12 months from the start date of
operation, whichever expires first. Any claim for
warranty must be reported to the sales office where the
product was purchased for authorized repair or
replacement within the terms of this warranty.
Subject to State or Provincial law to the contrary, the
Company will not be responsible for any expense for
installation, removal from service, transportation, or
damages of any type whatsoever, including damages
arising from lack of use, business interruptions, or
incidental or consequential damages.
The Company cannot anticipate or control the
conditions of product usage and therefore
accepts no responsibility for the safe application and
suitability of its products when used alone or in
combination with other products. Tests for the safe
application and suitability of the products are the sole
responsibility of the user.
This warranty will be void if, in the judgment of the
Company, the damage, failure or defect is the result of:
• vibration, radiation, erosion, corrosion, process
contamination, abnormal process conditions,
temperature and pressures, unusual surges or
pulsation, fouling, ordinary wear and tear, lack of
maintenance, incorrectly applied utilities such as
voltage, air, gas, water, and others or any
combination of the aforementioned causes not
specifically allowed for in the design conditions or
• any act or omission by the Purchaser, its agents,
servants or independent contractors which for
greater certainty, but not so as to limit the generality
of the foregoing, includes physical, chemical or
mechanical
abuse,
accident,
improper
installation of the product, improper storage and
handling of the product, improper application or the
misalignment of parts.
No warranty applies to paint finishes except for
manufacturing defects apparent within 30 days from
the date of installation.
The
Company
neither
assumes
nor
authorizes any person to assume for it any other
obligation or liability in connection with the product(s).
The Purchaser agrees that all warranty work required
after the initial commissioning of the product will be
provided only if the Company has been paid by the
Purchaser in full accordance with the terms and
conditions of the contract.
The Purchaser agrees that the Company makes
no warranty or guarantee, express, implied or
statutory, (INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR WARRANTY OF FITNESS
FOR A PARTICULAR PURPOSE) written or oral, of
the Article or incidental labour, except as is expressed
or contained in the agreement herein.
LIABILITY: Technical data contained in the catalog or
on the website is subject to change without notice. The
Company reserves the right to make dimensional and
other design changes as required. The Purchaser
acknowledges the Company shall not be obligated
to modify those articles manufactured before the
formulation of the changes in design or improvements
of the products by the Company.
The Company shall not be liable to compensate or
indemnify the Purchaser, end user or any other party
against any actions, claims, liabilities, injury, loss, loss of
use, loss of business, damages, indirect or consequential
damages, demands, penalties, fines, expenses
(including legal expenses), losts, obligations and
causes of action of any kind arising wholly or partly from
negligence or omission of the user or the misuse, incorrect
application, unsafe application, incorrect storage and
handling, incorrect installation, lack of maintenance,
improper maintenance or improper operation of
products furnished by the Company.

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