XGB Series Installation, Operation, & Maintenance Instructions - Thermon
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Explosion-Proof Forced Air Unit Heater
XGB Series
Installation, Operation, & Maintenance Instructions
WARNING. Improper installation adjustment,
alteration, excessive vibration, service, or
WARNING maintenance can cause property damage,
injury or death. Read the installation, operating
and maintenance instructions thoroughly
before installing, operating or servicing this
equipment.
Special Notes
The following special notices highlight important
information in the installation, operation and maintenance
sections.
This symbol indicates a potentially hazardous
situation, which, if not avoided, can result in
CAUTION personal injury or damage to the equipment.
This symbol indicates a potentially hazardous
situation, which, if not avoided, may be a shock
hazard.
CAUTION
This symbol indicates an imminently hazardous Glycol Free Design
situation, which, if not avoided, could result in
WARNING death or serious injury.
Part No. 11110.Rev.1.04 March 2022 Printed in CanadaTABLE OF CONTENTS A. General Information 3 A.1 Description������������������������������������������������������������������������������������������������������������������������������������������ 3 A.2 Application����������������������������������������������������������������������������������������������������������������������������������������� 3 A.3 Construction and Installation����������������������������������������������������������������������������������������������� 3 A.4 Standard Product Features���������������������������������������������������������������������������������������������������� 3 A.5 Optional Features�������������������������������������������������������������������������������������������������������������������������� 3 A.6 Thermostats�������������������������������������������������������������������������������������������������������������������������������������� 3 A.7 Motors���������������������������������������������������������������������������������������������������������������������������������������������������� 3 A.8 Accesories������������������������������������������������������������������������������������������������������������������������������������������� 3 B. Pre-Installation 5 C. Installation and Mounting 5 C.1 Dimensions����������������������������������������������������������������������������������������������������������������������������������������� 5 C.2 Mounting��������������������������������������������������������������������������������������������������������������������������������������������� 5 C.3 Mounting with Standard Kits������������������������������������������������������������������������������������������������ 6 C.4 Outlet Louvres���������������������������������������������������������������������������������������������������������������������������������8 C.5 Wiring�����������������������������������������������������������������������������������������������������������������������������������������������������8 D. Options 9 D.1 Temperature Control�������������������������������������������������������������������������������������������������������������������� 9 D.2 “AUTO/OFF/FAN-ONLY” (Optional)������������������������������������������������������������������������������������ 9 E. Normal Sequence of Operation 10 F. Maintenance 10 F.1 Motor������������������������������������������������������������������������������������������������������������������������������������������������������ 10 F.2 Fan Blade�������������������������������������������������������������������������������������������������������������������������������������������� 10 F.3 Heater Cabinet�������������������������������������������������������������������������������������������������������������������������������� 10 F.4 Overheat Protection������������������������������������������������������������������������������������������������������������������� 10 F.5 Replacement Parts List��������������������������������������������������������������������������������������������������������������11
A. GENERAL INFORMATION
A.1 Description ࢦ Glycol-free design allows the heater to be tilted 30º downward
The small cabinet units are available with ratings from 3.75 to ࢦ Rotatable outlet louvers provide 35º of additional airflow
10 kW, and can be identified by their internally mounted motor. redirection
The large cabinet units are available from 10 kW up to 35 kW. See ࢦ Patented x-Max® housing with track and trolley system
C.1 Dimensions, page 5 for cabinet dimensions. simplifies installation and servicing
ࢦ Heavy duty 16 ga. Stainless steel casing
A.2 Application
ࢦ Terminals for remote thermostat connection
Designed specifically for heating industrial spaces where ࢦ Dual automatic reset high limits
potentially
ࢦ Contactor derated for extended service life
explosive substances are or may be present. Typical hazardous
location environments include: ࢦ Isolated supply connection housing eliminates the need for
conduit seals
ࢦ Water and Sewage Treatment Plants
ࢦ Oil Refineries
A.5 Optional Features
ࢦ Compressor Stations
ࢦ Built-in, externally adjustable thermostat
ࢦ Pulp and Paper Mills
ࢦ Built-in disconnect
ࢦ Paint Storage Booths
ࢦ Moisture-resistant construction
ࢦ Cement Plants
ࢦ “AUTO/OFF/FAN-ONLY” switch
ࢦ Mines
ࢦ Pilot light
ࢦ Manual reset high limit
A.3 Construction and Installation
Norseman™ unit heaters use extra heavy wall finned tubular
A.6 Thermostats
steel heating elements to provide safe, efficient heat transfer to
the environment. The heater does not contain glycol. Thermon offers a wide variety of explosion-proof thermostats to
suit most every need. Norseman™ unit heaters are available with
In structures with high ceilings, other units may not have the
optional built-in, externally adjustable, bulb type thermostats
range of motion needed to direct air flow to the floor. The glycol-
which are field-convertible to tamper-proof. Thermostats for
free design of the XGB allows the unit to be tilted to a 30º angle
remote mounting can also be provided on request.
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. A.7 Motors
A factory installed conduit seal provides the necessary isolation Fractional horsepower, 1725 RPM explosion-proof motor with
between the supply and control housings. In Division 2, Zone 1 double shielded ball bearings and built-in thermal overload. Small
and Zone 2 applications, a field installed conduit seal may not be cabinet units use 1/12 hp motor approved for Class I, Group D;
required. Class II, Group E, F, and G. Large cabinet units use 1/2 hp motor
To facilitate installation, the Norseman™ XGB explosion-proof approved for Class I, Groups C and D; Class II, Groups E, F & G, as
unit heaters feature the patented x-Max® housing with slide out standard.
terminal block trolley for connection of the electrical supply.
A.8 Accesories
A.4 Standard Product Features
Norseman™ explosion-proof unit heaters readily adapt to
See Figure 1 and Figure 2, page 4. most mounting requirements. Each heater is equipped with a
basic swivel bracket that is compatible with any of the optional
ࢦ CSA C/US Certified for hazardous locations. Small cabinet
mounting kits.
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, Optional mounting kits allow the unit to be installed on a wall
Div. 1 & 2, Groups C & D; Class II, Div. 1 & 2, Groups E, F & G. ceiling, 3" pipe, or floor stand. Each mounting configuration
provides maximum flexibility for outlet flow direction. The swivel
General Information
NOTE: Class II and some atmospheric groups are not available
bracket (standard on all heaters) features holes for affixing a
in every kW rating.
safety chain.
ࢦ Zone marking available.
ࢦ Ratings from 3.75 to 35 kW.
ࢦ 208 to 600V, 1 or 3 phase
ࢦ Low watt density extra heavy wall tubular steel finned
heating elements with nickel plated finish
32.
Standard Features (Small Cabinet Unit)
1) 1/12 hp explosion-proof motor 2.
STANDARD FEATURES, SMALL CABINET UNIT: ha
2) Inlet guard
ca
STANDARD
3) FEATURES,
Extra heavySMALL CABINET
wall tubular UNIT: heating elements
steel finned
1) 1/12 hp explosion-proof motor
with 2.
2) Inlet guard
1) 1/12 hp explosion-proof
nickel platedmotor
finish cl
3) Extra heavy
2) Inlet guardwall tubular steel finned heating elements with ar
nickel plated
3) Extra 4) finish
heavy Patented steelexplosion-proof
x-Max
wall tubular
®
terminal housing
finned heating elements with
4) Patented x-Max®
nickel plated explosion-proof terminal housing
finish 2.
5) 120V control circuit includes:
5) 120V controlx-Max®
4) Patented circuit includes:
explosion-proof terminal housing or
• Derated
5) 120V control– magnetic
Derated
circuit contactor
magnetic contactor
includes: D
• Dual automatic
• Derated
–
reset
magnetic high limits
contactor
Dual automatic reset high limits V
• Transformer
• Dual automatic reset high limits N
6) Heavy duty • Transformer Transformer
16 –ga. stainless steel casing
6) Heavy
7) Outlet louverduty 16
6) assembly
ga. stainless steel casing
Heavy duty 16 ga. stainless steel casing
3.
7) Outlet
8) Swivel louver assembly
bracket
8) Swivel
9) Factory 7) Outlet
bracket
installed louver
conduit assembly
seal Th
9) Factory installed
10)Supply connection conduit
housing seal co
8) Swivel bracket
10)Supplyblock
11)Terminal connection housing
for supply wiring and thermostat connection
11)Terminal
9) block for supply
Factory wiring
installed and thermostat
conduit seal connection 3.
Ta
10) Supply connection housing
11) Terminal block for supply wiring and thermostat
connection
Figure
Figure1A
1A--Small
Small Cabinet XGBUnit
Cabinet XGB UnitHeater
HeaterComponents
Components
Figure 1 – Small Cabinet XGB Unit Heater Components
Standard Features (Large Cabinet Unit)
1) 1/2 hp explosion-proof motor
2) Inlet wire guard
STANDARD
STANDARD FEATURES,
FEATURES, LARGECABINET
LARGE CABINETUNIT:
UNIT:
3) Extra heavy wall tubular steel finned heating elements with
1) 1) 1/2
1/2 hp explosion-proof
nickel plated
hp explosion-proof motor
finish
motor
2) 2) Inlet
Inlet wirewire guard
guard
4) Patented x-Max® explosion-proof terminal housing
3) 3) Extra
Extra heavy heavy wall
wall tubular
tubular steel
steel finnedheating
finned heatingelements
elements with
with
nickel5)plated finish
120V control circuit includes:
nickel plated finish
4) Patented x-Max® explosion-proof terminal housing
4) Patented x-Max® – explosion-proof
Derated magneticterminal housing
contactor
5) 120V control circuit includes:
5) 120V control circuit
• Derated
includes:
magnetic contactor
– Dual automatic reset high limits
• Derated magneticreset
• Dual automatic contactor
high limits
• Dual automatic
–
• Transformer reset high limits
Transformer
• Transformer
• Fan– delay Fanrelay
delay relay
• Fan delay fuse
• Control relay
• Control
6) Heavy fuse
duty– 16 Control fuse steel casing
ga. stainless
6) Heavy duty
7) Outlet 16
louver ga. stainless
assembly
6) Heavy duty 16 ga. steel casing
stainless steel casing
7) Outlet louver
8) Swivel assembly
bracket
9) Factory
8) Swivel 7) installed
bracket Outlet conduit
louver assembly
seal
10)Supply
9) Factory 8) connection
installed housing
conduit
Swivel bracketseal
11)Terminal
10)Supply block forhousing
connection supply wiring and thermostat connection
12)Motor 9)mountFactory installed conduit seal
11)Terminal block for supply wiring and thermostat connection
13)Motor
12)Motor mountmount
10) casing
Supply connection housing
13)Motor mount casing
11) Terminal block for supply wiring and thermostat connection
12) Motor mount
13) Motor mount casing Figure 1B - Large Cabinet XGB Unit Heater Components
Figure 1B - Large Cabinet XGB Unit Heater Components
General Information
Figure 2 – Large Cabinet XGB Unit Heater Components
4B. PRE-INSTALLATION
1. Inspect the heater for possible damage due to shipping 3. Verify that the nameplate voltage, phase and wattage
and handling. Claims for shipping damages shall be are as ordered and are the same as the electrical power
placed with the carrier. supply available. DO NOT CONNECT THE XGB UNIT
HEATER TO A SUPPLY VOLTAGE OTHER THAN THAT
2. Check the heater nameplate to ensure that the heater
SHOWN ON THE PRODUCT NAMEPLATE.
area classification and temperature code are suitable for
the hazardous area classification.
C. INSTALLATION AND MOUNTING
The heater must be installed by qualified personnel in strict 5. For specific mounting instructions refer to C.3,
compliance with the electrical code. page 6.
6. If lifting with slings, take special care not to damage the
C.1 Dimensions casing.
7. For large cabinet units, leave the heater on the shipping
Table 1 – Dimensions and Weights skid and use the skid as a lifting platform to facilitate
(See Figure 3, page 5) installation of the heater.
Cabinet A B C D1 D2 Weight
Type in mm in mm in mm in mm in mm lbs kg B
Small 16 8 25 17
429 225 640 445 – 100 45
Cabinet 7/8 7/8 3/16 1/2
10-15
Large Cabinet
145 66
kW
20 8 29 31
511 225 743 – 794
1/8 7/8 1/4 1/4
20-35
185 84 C
kW
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
A
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 D1
over prolonged periods. Periodically inspect at regular
intervals and retighten if necessary. D2
Pre-Installation
4. All standard mounting kits are designed to support the
AIRFLOW
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 Figure 3 – XGB Heater Dimensions
bracket is bolted to its support.
5C.3 Mounting with Standard Kits
1. Ceiling Mounting 2. Wall Mounting
3.3 MOUNTING WITH STANDARD KITS
1.1 Install the ceiling bracket to the mounting surface 2.1 Install the ceiling bracket to the wall bracket
3.3CEILING
3.3.1 MOUNTING WITH
the STANDARD
MOUNTING
with KITS Ensure that ‘LINE A”
desired orientation. 3.3.2 WALL MOUNTING
with the desired orientation. Ensure that “LINE A” 3.3
(Figure 4, page 6), a line drawn perpendicular (Figure 5, page 6), a line drawn perpendicular
ted 3.3.1 CEILING
a) Install toMOUNTING
the ceiling bracket
the to thein
bolt holes mounting surfacebar,
the mounting withisthe desired
pointed in 3.3.2 WALLthe
a) Install MOUNTING
ceiling
to the boltbracket
holes tointhe
thewall bracketbar,
mounting with the desired
is pointed a)
ing orientation. Ensure that ‘LINE A” of(Figure orie
the desired direction airflow. 3), a line bracket
The ceiling drawn orientation. Ensure that “LINE
in the desired A” of
direction (Figure
air flow.4), a line
Secure drawn
the wall
ing a) Install thetoceiling
perpendicular bracket
the bolt holes tointhe
themounting
mounting surface iswith
bar, surface the desired
pointed in the a) Install the ceiling
perpendicular to the bracket
bolt holesto in
thethewall bracket bar,
mounting withisthe desired
pointed in the per
ater orientation. must bethat
secured to A”
the mounting using as bracket to the mounting surface.4), The wall bracket
desired directionEnsure
of airflow. The‘LINE
ceiling (Figure
bracket 3), abe line
must drawn
secured to orientation. Ensure
desired direction that
of air flow.“LINE
Secure A” the(Figure
wall bracket a toline
the drawn
mounting des
perpendicular many
to the as
boltsixholes
(but in
nottheless than two)
mounting bar, 5/8"
is fasteners
pointed in the perpendicular must be holes
secured to mounting
the mounting surface
pointedusing the as
the mounting surface using as many as six (but not less than two) surface. The to thebracket
wall bolt mustin the
be secured tobar,
theismounting insurface the
(not provided). Make certain thatmust
lockwashers areto desired directionmany as sixSecure
(but not theless
wallthan four) to5/8" fasteners
5/8”desired direction
fasteners (not of airflow. The
provided). Makeceiling bracket
certain be secured
that lockwashers are using as many of asairsixflow.
(but not less thanbracket
four) 5/8” the mounting
fasteners (not loc
ide the mounting used surface using
under allas many
nuts or as six
lag (but not less than two)
bolts. surface. The wall bracket
(not must be
provided). Makesecured to the
certain that mounting
lockwashers surface
are or
used under all nuts or lag bolts. provided). Make certain that lockwashers are used under all nuts
d at 5/8” fasteners (not provided). Make certain that lockwashers are using as many usedas sixunder
(but not
all less or
nuts thanlagfour)
bolts. 5/8” fasteners (not b)
lag bolts.
cm used under all nuts or
1.2 Hoist thelag bolts. up to the ceiling bracket. Line up
heater provided). Make certain that lockwashers are used under all nuts or
mize b) Hoist the heater up to the ceiling bracket. Line up the large centre lag bolts. 2.2 Follow steps 1.2 and 1.3 outlined in Ceiling
holeb)inHoist
the swivelthe large centre
bracket thehole in hole
the swivel bracket with the
nto the heater up towith large
the ceiling bracket. in theupmounting
Line the largebar.
centre b) Follow steps b) and c) outlined in 3.3.1.
large hole in the mounting bar. Mounting, page 6.
hole in the swivel bracket with the large hole in the mounting bar. b) Follow steps b) and c) outlined in 3.3.1.
c) Insert the 1/2” bolt and loosely secure with nut and washers
provided. 1.3 Insert
Tiltthe
the1/2” the 1/2"
heater bolt and loosely tosecure with nut and
and
be c) Insert bolt at
andtheloosely
desired angle with
secure the
nuthorizontal
and washers
ged secure with the
provided. washers
Tilt 3/8” bolt. provided.
the heater Tighten
at the theTilt the
1/2”
desired heater
bolt.
angle at the
to the desiredand
horizontal
n if secure with the angle
3/8” to the
bolt. horizontal
Tighten andbolt.
the 1/2” secure with the 3/8" MOUNTING SURFACE
bolt. Tighten the 1/2" bolt. 11/16” dia.SURFACE
MOUNTING mounting holes
11/16” dia. mounting holes
5/8” flatwasher, lockwasher, nut
ater 5/8” flatwasher, lockwasher, nut
ion
WALL BRACKET
n is WALL BRACKET
MOUNTING SURFACE 5/8” Bolt A
LIN MOUNTING SURFACE 5/8” Bolt LAINE
LEINA 11/16” Dia. Mounting Holes 3/8” Bolt INE CEILING BRACKET
ate CEILING BRACKET E A 11/16” Dia. Mounting Holes 3/8” Bolt L
CEILING BRACKET
CEILING BRACKET
3/8” bolt
MOUNTING BAR 3/8” bolt 5/8” Bolt
1/2” bolt 1/2” Bolt 5/8” Bolt
. 3/8” Flat Washer, LockMOUNTING BAR
Washer, Nut 1/2” bolt 1/2” Bolt MOUNTING BAR
sing. 3/8” Flat Washer, Lock Washer, Nut MOUNTING BAR
1/2” Flat Washer, Lock Washer, Nut
1/2” Flat Washer, Lock Washer, Nut SWIVEL MOUNTING BRACKET 3/8” flatwasher, lockwasher, nut
SWIVEL MOUNTING BRACKET 3/8” flatwasher, lockwasher, nut
SWIVEL MOUNTING BRACKET 1/2” flatwasher, lockwasher, nut
skid SWIVEL MOUNTING BRACKET 1/2” flatwasher, lockwasher, nut
the
Figure 4 – Ceiling Mounting
Figure 5 – Wall Mounting
Figure
Figure 3 - 3Ceiling
- Ceiling Mounting
Mounting Figure
Figure44- -Wall
WallMounting
Mounting Fig
Installation and Mounting
63.3.3 POST MOUNTING 3.3.4 FLOOR STAND MOUNTING
4. Floor Stand Mounting
a) 3.Install Post Mounting
the ceiling bracket to the wall bracket with the desired a) At times adequate support for the heater may not be available
orientation. Ensure that “LINE A” (Figure 5), a line drawn within 4.1
the structure
At timesof the space
adequate to be for
support heated. In this
the heater maysituation,
not the
3.1 Install the ceiling bracket to the wall bracket
perpendicular to the bolt holes in the mounting bar, is pointed in the floor mount bestand may be
available
desirable.
within the
Telescoping
structure of the
square
space
tubing on a
to
with the desired orientation. Ensure that “LINE A”
desired direction of air flow. Secure the wall bracket to the post using support base allows the unit to be positioned at the desired height
(Figure 5), a line drawn perpendicular to the bolt be heated. In this situation, the floor mount stand
the 1/2” U-bolts, nuts and washers supplied. Make certain the above the floor anywhere between 1.8 m (6’) to 3 m (10’).
holes in the mounting bar, is pointed in the desired may be desirable. Telescoping square tubing on a
3.3 POSTlockwashers
MOUNTING are used under all nuts or lag bolts.
direction of air flow. Secure the wall bracket to 3.3.4 FLOOR STAND MOUNTING
support base allows the unit to be positioned at the
b) Position the base of the stand on the floor in the desired
the post using the 1/2" U-bolts, nuts and washers desired height above the floor anywhere between
) Install b)
theFollow
ceilingsteps b) and
bracket
supplied.
c) outlined
to the Make
in 3.3.1.
wall certain
bracket thewith the desired
lockwashers
orientation.
a) At times
are used adequate Ensure that
1.8support
m (6’) tofor3 mthe
“LINE
heater
(10’).
A” may
(Figure
not be 6),available
a line drawn
rientation. Ensure that under “LINEallA” (Figure 5), a line drawn within theperpendicular
structure of to the
the spacebolttoholes
be in the mounting
heated. In this bar, is pointed
situation, the in the
nuts or lag bolts. desired direction of air flow.
erpendicular to the bolt holes in the mounting bar, is pointed in the floor mount stand may
4.2 be desirable.
Position the base Telescoping
of the standsquare
on the tubing
floor in on
thea
esired direction of air3.2
flow.Follow
Securestepsthe wall bracket
1.2 and to the post
1.3 outlined using
in Ceiling support base allows desired
the unitorientation.
to be positionedEnsureat the“LINE
that desired height7,
A” (Figure
c) Next, the stand is to be lagged to a solid floor to prevent the unit
e 1/2” U-bolts, nuts and washerspage
Mounting, supplied.
6. Make certain the above the floor anywherepage between 1.8 m perpendicular
7), a line drawn (6’) to 3 m (10’).to the bolt
from toppling. Four 11/16” diameter holes are provided in the base of
ckwashers are used under all nuts or lag bolts. holes in the mounting bar, is pointed in the desired
the stand for this purpose.
b) Position the base of theofstand
direction air flow. on the floor in the desired
) Follow steps b) and c) outlined3” PIPEin 3.3.1.
(NOT INCLUDED) orientation. Ensure that “LINE A” (Figure 6), a line drawn
d) Raise the mounting frame to the desired height and secure to the
1/2” U-bolt perpendicular to the bolt
4.3 Next,holes in theismounting
the stand to be laggedbar,toisapointed in to
solid floor the
base using the hardware supplied.
1/2” flat washer, lock washer, nut
desired direction of air flow.
prevent the unit from toppling. Four 11/16" diameter
WALL BRACKET e) Hoist theholes are provided in the base of the stand for this
heater up to the mounting frame.
c) Next, the stand ispurpose.
to be lagged to a solid floor to prevent the unit
5/8” flatwasher, lockwasher, nut from toppling. Four 11/16” diameter holes are provided in the base of
f) Insert the 1/2” bolt and loosely secure with nut and lockwashers
the standprovided.
for this purpose.
4.4 Raise the mounting frame to the desired height
Tilt the heater at the desired angle to the horizontal and
and secure to the base using the hardware
secure with the 3/8” bolt. Tighten the 1/2” bolt.
3” PIPE (NOT INCLUDED)
I N EA d) Raise the mounting frame to the desired height and secure to the
supplied.
5/8” bolt L
1/2” U-bolt CEILING BRACKET base using the hardware supplied.
1/2” bolt
1/2” flat washer, lock washer, nut 4.5 Hoist the heater up to the mounting frame.
3/8” bolt MOUNTING BAR MOUNTING FRAME
WALL BRACKET e) Hoist the heater up to the mounting frame. MOUNTING BAR
3/8” flat washer, lock washer, nut 4.6 Insert the 1/2" bolt and loosely secure with nut and
1/2” flat washer, lock washer, nut 3/8” flatwasher, lockwasher, nut
SWIVEL MOUNTING BRACKET 5/8” flatwasher, lockwasher, nut f) Insert the 1/2” boltlockwashers
and 3/8” Bolt provided.
loosely Tilt the heater
secure with nut and at thelockwasher,
lockwashers
1/2” flatwasher, desired nut
angle to
provided. Tilt the heater at1/2” the
the horizontal and secure with the 3/8"
Boltdesired angle to the horizontal and
secure with the 3/8” bolt. Tighten
bolt. Tighten the
the 1/2"
1/2”bolt.
bolt.
EA
5/8” bolt LIN
1/2” bolt CEILING BRACKET
3/8” bolt MOUNTING BAR MOUNTING FRAME
3/8” flat washer, lock washer, nut MOUNTING BAR
1/2” flat washer, lock washer, nut 3/8” flatwasher, lockwasher, nut
SWIVEL MOUNTING BRACKET 3/8” Bolt 1/2” flatwasher,SWIVEL MOUNTING
lockwasher, nut BRACKET
1/2” Bolt
Figure 6 – Post Mounting
SWIVEL MOUNTING BRACKET
Figure 5 - Post Mounting
5/8” Bolt
5/8” flatwasher,
lockwasher, nut
EA
LIN
gure 5 - Post Mounting
5/8” Bolt
Figure 6 - Floor Mounting Stand
5/8” flatwasher,
Installation and Mounting
lockwasher, nut
EA
LIN
Figure 6 - Floor Mounting Stand
Figure 7 – Floor Mounting Stand
7C.4 Outlet Louvres Table 2 – Small cabinet
1. A louvered grill on the heater outlet end is supplied as Max Line Recommended
standard. The louver assembly may be positioned either Catalog Amps Fuse Size (Amps)
kW Voltage
horizontally or vertically for maximum flexibility. Number
1Ø 3Ø 1Ø 3Ø
2. Standard heaters are shipped with the louvers in the
208 19 11 25 15
horizontal position. To change the orientation of the
240 17 10 25 15
louvers to vertical, remove the three mounting screws XGB038T3B 3.75
securing the louver assembly to the cabinet and rotate 480 – 6 – 10
the louver 90º to the desired direction. 600 – 5 – 10
208 25 15 35 20
C.5 Wiring 240 22 13 30 20
XGB050T3B 5
480 – 7 – 10
CAUTION. Whenever hazardous material are present, 600 – 6 – 10
ensure that the terminal housing covers, plugs, etc., 208 37 22 50 30
CAUTION
are secured (but not over-tightened) before powering
240 32 19 40 25
the heater. XGB075T3A 7.5
480 – 10 – 15
All circuits must be in the open position before
600 – 8 – 10
removing juncation or terminal box covers.
208 – 29 – 40
1. The heater must be installed by qualified personnel in 240 43 25 60 35
XGB100T2C 10
strict compliance with the electrical code. 480 – 13 – 20
2. All heaters are factory pre-wired and ready for direct 600 – 11 – 15
connections
Table to the
2: Recommended power
Fuse Sizes supply leads.
supplied as standard. Recommended
either horizontally 3.or The heater
Catalog Number must
kW be individually
Voltage Max Line Amps fused,Fuse preferably
Size with Table 3 – Large Cabinet
(Amps)
Class J time-delay fuses for maximum safety. Unless
1Ø 3Ø 1Ø 3Ø
Max Line Recommended
uvers in the horizontal stated
XGB038T3Botherwise
3.75 in
2 0 8your1local
9 1code,
1 2 5fuse1size5 shall be Catalog
240 17 10 25 15 kW Voltage Amps Fuse Size (Amps)
ers to vertical, remove 125% of line current 480
or next
-
size 6
larger.
-
See 10
Table 2 and Number
uver assembly to the
Table 3, page 8 for6 0recommendations.
0 - 5 - 10 1Ø 3Ø 1Ø 3Ø
d direction. XGB050T3B 5208 25 15 35 20
240 22 13 30 20 208 – 30 – 40
4. Use approved conduit
480
and
-
conduit
7
seals
-
are
10
required by
the code for the hazardous location.
6 0 0 - 6 - 1 0 240 47 26 60 35
XGB075T3A 7.5
208 37 22 50 30 XGB100T3B 10
are present, ensure 240 32 19 40 25 480 – 13 – 0
5.
tc., are secured (but The Norseman™ explosion-proof
480 - 10
unit
-
heaters
15
are
ater. equipped with a factory
600 installed
- 8 conduit
- 1 0 seal between 600 – 11 – 15
XGB100T2C 10 208 29 40
the control and supply
240 housings.
43 25 In6 0Division
35 2, Zone 1 and 208 – 44 – 60
on before removing 480 - 13 - 20
Zone 2 applications,
600
a field
-
installed
11 -
conduit
15
seal may not
240 – 38 – 50
be required. 1 0
XGB100T3B 208 - 30 - 40
XGB150T3B 15
ed personnel in strict 240 47 26 60 35
480 – 19 – 25
480 -
6. Supply wiring connections
600 -
are11 13made
by -
-
20
accessing
15
the
600 – 15 – 20
over of the side
XGB150T3B 1 5 mounted
208 - supply
4 4 connection
- 60 housing
nd ready for direct 240 - 38 - 50
(terminal box). Slide
4 8 0 the control
- 1 9 trolley
- out
2 5 of the housing
480 – 25 – 35
600 - 15 - 20 XGB200T3B 20
just enough to access the terminal block (Figure 8, 600 – 20 – 25
XGB200T3B 20 480 - 25 - 35
referably with Class J page 8). 600 - 20 - 25
s stated otherwise in XGB225T3A 22.5 480 - 28 - 35
480 – 28 – 35
ne current or next size XGB225T3A 22.5
7. Connect the power 6 0 0leads- to terminals
23 - marked
30 L1 and L2 600 – 23 – 30
XGB250T2D 25 480 - 31 - 40
for single phase and 600 L1, L2- and25L3 for
- three
35 phase heaters
480 – 31 – 40
s are required by the making
XGB300T2Dcertain
3 0 to4 leave
80 some
- 3excess
7 - wire5 0 to ensure that
XGB250T2D 25
600 - 30 - 40
the leads may 600 – 25 – 35
XGB325T2D 32.5slide
4 8 0back -into 4the
0 housing
- 5 0 with the trolley.
600 - 32 - 40
See Figure 9 and Figure 10, page 9 for control circuit 480 – 37 – 50
XGB350T2C 35 480 - 43 - 60
XGB300T2D 30
and Figure 11, page 6 0 09 for suggested
- 34 -wiring.
4 5 Exercise
600 – 30 – 40
care to avoid damage to wires caused by threads on the
480 – 40 – 50
housing. XGB325T2D 32.5
600 – 32 – 40
Installation and Mounting
480 – 43 – 60
XGB350T2C 35
600 – 34 – 45
TERMINAL BLOCK
Figure 8 - XGB Terminal Block Trolley Figure
Figure 8 – Terminal Block Trolley
83Ø ONLY
with the
free to r
Figure 9B - Large Cabinet XGB Wiring Schematic
6.2 Ene
C 8. Connect4.0the TEMPERATURE CONTROL
ground wire to the ground connection
L3 C H3 4.0 TEMPERATURE CONTROL
L33Ø
1 OR H3 TO HEATING 3.5.8 Connect the ground
located wire to
in the supply the ground
connection connection
housing; located in
once again, 6.3 Ass
L2 H2
1 OR SUPPLY
3Ø L2 H2 TO HEATINGLOAD the supply connection surehousing;
making 4.1 BUILT-IN
that the once again,
THERMOSTAT
wire is making
sufficiently long sure
(OPTIONAL)
to slidethat the set to a
SUPPLY L1 LOAD
H1 4.1 BUILT-IN
wire is sufficiently longthe
back into
THERMOSTAT
tohousing
slide back into
with
(OPTIONAL)
thethe housing
trolley. with the
See Figure 11, trolley.
L1 H1
See Figure 10.page 9.
When specified, the unit comeswith
equipped with a) The m
a built
When specified, the unit comes equipped a built-in thermosta
b) After
REMOVEREMOVE
JUMPER JUMPER FOR
pre-wiredpre-wired to standard
all other controls.
standardSet
controls. Set the temp
FOR
OPTIONAL
OPTIONAL THERMOSTAT
THERMOSTAT to all other the temperature to th
thermos
X1 X1 desired operating condition.
desired
TOPoperating condition. will de-e
120V T2
120V T1 T1HI-LIMITS
T2 HI-LIMITS
C C
X2 X2
C/AUX C/AUX
M M 4.2 REMOTE
4.2 REMOTE THERMOSTAT
THERMOSTAT (OPTIONAL)
(OPTIONAL) Note: T
NO NO MOTOR MOTOR
the “ON
Install the XT thermostat
Install in accordance
the XT thermostat with the instruction
in accordance theshee
with the ins
hea
Figure 9A - Small
Figure
Figure 99A
Cabinet
- Small
– Small Cabinet
XGB Wiring
WiringXGB
Cabinet Schematic
Wiring
Schematic Schematic provided.provided.
TerminalsTerminals
“T1” and “T2”“T1”inand
the “T2”
heater
in supply housing
the heater ar
blasts)
suppl
provided provided
for connection to the remote
for connection thermostat
to the and are pre-wire
remote thermostat compon
and
to the rest
to of
thethe control
rest of thecircuit. Remove
control circuit.the jumper the
Remove wirejumper
betwee
“OFF” i
1 OR 3Ø “T1” and “T1”
“T2” and
and connect
“T2” and connect the thermostat to these(Refe
the thermostat to these terminals. term
SUPPLY 1 OR 3Ø
3Ø ONLY
SUPPLY
3Ø ONLY to Figure 9). Set the temperature to the desired operating condition 6.4 Th
L3 L2 L1
L3 L2 L1
C
C
to Figure 9). Set the temperature to the desired tempera operat
H1
H1
LOOP
H2 TO HEATING
L1
5.0 “AUTO / OFF / FAN-ONLY” SWITCH (OPTIONAL)
H2 TO HEATING
L1
L3
L2
L2 H3 LOAD
LOAD
5.0 “AUTO / OFF / FAN-ONLY” SWITCH (OPTIONAL
L3
H3
REMOVE JUMPER FOR SIDE
REMOVE
OPTIONAL JUMPER FOR
THERMOSTAT If ordered, a factory installed “auto / off / fan-only” switch may b
included Ifonordered, a factory installedfeature
“auto allows
/ off / the
fan-only”
heater st
X1
120V X1
OPTIONAL THERMOSTAT
HI-LIMITS the heater. The “fan-only”
X2 T1120V
T2
C
HI-LIMITS cycle in aincluded on the
“heat” mode heater.
dictated byThe “fan-only” thermostat,
the controlling feature allows
eve
C Figure 10 -though
Figure 11Supply Connection
– Supply
the
Connection
cycle
fan in
is a “heat”
operating mode dictated
continuously. by the controlling the
X2 T1 T2 FD
3
FD
1 FD
9. though
Due to the the of
presence fan is operating
hazardous continuously.
materials, ensure that
5 4 FD
M1 6.0
theNORMAL SEQUENCE
terminal housing covers, OF OPERATION
plugs, etc., are secured (but
3 3.5.9 Duenottoover-tightened)
the presence before
of hazardous
powering materials,
the OF ensure that
heater.
5 4
M 6.0 NORMAL SEQUENCE OPERATION
the terminal housing covers, plugs, etc., are secured (but not
6.1 The heater must be properly mounted and wired in accordanc
3Ø ONLY over-tightened) before powering the heater.
with the instructions contained
6.1 The heater mustinbethis manual.mounted
properly The fan blade must bi
and wired
3Ø ONLY
free to rotate
with with no obstruction
the instructions to air inlet
contained in or outlet
this areas.
manual. The fan b
Figure
Figure 9B -10Large
– Large CabinetXGB
Cabinet Wiring Schematic
Wiring Schematic free to rotate with no obstruction to air inlet or outlet ar
Figure 9B - Large Cabinet XGB Wiring Schematic 6.2 Energize the heater at the rated supply voltage.
6.2 Energize the heater at the rated supply voltage.
3.5.8 Connect the ground wire to the ground connection located in 6.3 Assuming that the thermostat calls for heat, i.e. the thermostat
D. OPTIONS
the supply connection housing; once again, making sure that the set to a higher temperature that ambient:
3.5.8 Connect the ground wire to the ground connection located in
wire is sufficiently long to slide back into the housing with the trolley.
6.3 Assuming that the thermostat calls for heat, i.e. the
the supply
See Figure 10. connection housing; once again, making sure that the set to
a) The main a higher
contactor willtemperature
energize thethat ambient:
elements and the fan moto
wire
D.1 isTemperature
sufficiently long to slide back into the housing with the trolley.
Control b) After the inlet air temperature rises to the set point of th
See Figure 10. a) The
thermostat, main contactor
the thermostat willwill
contacts energize thethe
open and elements and t
main contacto
1. Built-in Thermostat (Optional)
TOP b) Afterthethe
will de-energize inlet air
elements andtemperature
the fan motor.rises to the set
When specified, the unit comes equipped with a built-in thermostat, the thermostat contacts will open and the m
thermostatTOP
pre-wired to all other standard controls. Set Note: Thewill de-energize
large cabinet XGB theincorporates
elements and
a fanthe fan feature
delay motor. in bot
the temperature to the desired operating condition. the “ON” and “OFF” cycles. This is a desirable feature as it allow
2. Remote Thermostat (Optional) the heater to come
Note: to temperature
The large before
cabinet XGB the fan operates
incorporates (no colf
a fan delay
blasts) and
the to cooland
“ON” down the cycles.
“OFF” “OFF” cycle
This (longer life for featur
is a desirable contro
Install the XT thermostat in accordance with the components and motor). Delay “ON” is 15 - 40 seconds
the heater to come to temperature before the fan ope and dela
instruction sheet provided. Terminals “T1" and “T2" in the “OFF” is blasts)
60 -160 and
seconds.
to cool down the “OFF” cycle (longer li
heater supply housing are provided for connection to
components and motor). Delay “ON” is 15 - 40 secon
the remote thermostat and are pre-wired to the rest of 6.4 The cycle described above will repeat when the ambien
“OFF” is 60 -160 seconds.
the control circuit. Remove the jumper wire between “T1" temperature falls below the thermostat set point.
and “T2" and connect the thermostat to LOOPthese terminals.
(Refer to Figure 9 and Figure 10, page 9 ). Set the 6.4 The cycle described above will repeat when
SIDE operating condition.
temperature to the desired temperature falls below the thermostat set point.
LOOP
D.2 “AUTO/OFF/FAN-ONLY” (Optional)
SIDE
Figure 10 - Supply Connection
If ordered, a factory installed “AUTO/OFF/FAN-ONLY”
switch may be included on the heater. The “fan-only”
3.5.9Figure 10
Due - Supply
to
featurethe Connection
presence
allows of hazardous
the heater to cycle in a materials,
“heat” modeensure that
Options
the terminaldictated
housing covers,
by the plugs,
controlling etc., are
thermostat, secured
even (but
though the not
over-tightened)
fan isbefore powering
operating the heater.
continuously.
3.5.9 Due to the presence of hazardous materials, ensure that
the terminal housing covers, plugs, etc., are secured (but not 9
over-tightened) before powering the heater.E. NORMAL SEQUENCE OF OPERATION
1. The heater must be properly mounted and wired in NOTE: The large cabinet XGB incorporates a fan delay
accordance with the instructions contained in this feature in both the “ON” and “OFF” cycles. This is a
manual. The fan blade must be free to rotate with no desirable feature as it allows the heater to come to
obstruction to air inlet or outlet areas. temperature before the fan operates (no cold blasts)
and to cool down the “OFF” cycle (longer life for
2. Energize the heater at the rated supply voltage.
control components and motor). Delay “ON” is 15 to 40
3. Assuming that the thermostat calls for heat, i.e. the seconds and delay “OFF” is 60 to 160 seconds.
thermostat is set to a higher temperature than ambient:
4. The cycle described above will repeat when the ambient
3.1 The main contactor will energize the elements and temperature falls below the thermostat set point.
the fan motor. IMPORTANT: The proper motor/fan rotation, viewed from the
rear of the heater is counter clockwaise for the
3.2 After the inlet air temperature rises to the set point
small cabinet units and clockwise for the large
of the thermostat, the thermostat contacts will
cabinet units, as indicated by the fan rotation
open and the main contactor will de-energize the
label on the heater. Incorrect rotation of the
elements and the fan motor.
fan will cause the heater to overheat and cycle
on the high limits. Consult factory in case of
incorrect rotation.
F. MAINTENANCE
1. The Norseman™ explosion-proof unit heaters are F.3 Heater Cabinet
designed and constructed to operate in tough industrial
applications with a minimum of maintenance. However, The XGB unit heater cabinet is stainless steel for superior
some routine maintenance is recommended to extend corrosion resistance. We recommend the cabinet be wiped down
the life of the heater and its components Always periodically using a mild detergent.
disconnect the electrical supply before performing any
maintenance. F.4 Overheat Protection
2. Periodically inspect the heater installation to ensure that
In the event of fan failure, motor damage, excessive dust build-
all connections, fittings, plugs, screws, covers, etc. are
up or restricted inlet airflow, the heater temperature may rise,
tight and free of corrosion.
causing the limit controls to open, breaking the power supply to
3. Check the inside of the cabinet and around the element the heater. All units are equipped with two automatic reset high
fins for dust build-up and debris, especially after seasonal limit controls.
shutdowns. Clean with an air blast or vacuum. Ensure
Cycling of the high limits should not be permitted.
that nothing is restricting the air flow into the unit and
that the fan blade is free to rotate. Should this occur, the unit should be inspected to determine the
cause of the cycling and the condition should be corrected.
F.1 Motor
The motor supplied with the small cabinet units is approved for
Class 1, Group D, Class II, Group E, F & G, T3B temperature code.
The motor supplied with the large cabinet units is approved for
Class I, Group C & D, Class II, Group E, F & G, T3B temperature
code. All motors have internal thermal protection to eliminate
motor overheating.
Normal Sequence of Operation
F.2 Fan Blade
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.
10F.5 Replacement Parts List
The replacement parts list is included for reference only.
Due to the delicate nature of explosion-proof design,
XGB unit heaters are not field serviceable. Should any
problem arise, return the unit to the factory for service by
trained personnel.
Table 4 – Small Cabinet Units
Part Unit Description Part No.
208V MO250O
240V MO250Q
Transformers
480V MO250S
600V MO250V
T2C T-Code C12023-11
High Limits T3A T-Code C12023-10
T3B T-Code C12023-10
Motor All units B14302-01
Contactor All units 13463
10 & 7.5 kW C11028-05
Fan Blade
5 & 3.75 kW C11028-06
Table 5 – Large Cabinet Units
Part Unit Description Part No.
208V EXA50-23
240V EXA50-25
Transformers
480V EXA50-36
600V EXA50-39
T2C T-Code C12023-11
T2D T-Code C12023-11
High Limits
T3A T-Code C12023-10
T3B T-Code C12023-12
208 to 480V 3Ø 1699
Motor 240V 1Ø 1979
600V 2433
Contactor All units 42CF35AF
Fan Blade All units 10873
Control Fuse All units MDL-0.6
A Thermon XTK thermostat kit may be purchased to replace a
broken thermostat. Refer to installation instructions provided
with the kit.
Maintenance
11PLEASE ADHERE TO INSTRUCTIONS IN THIS MANUAL
Failure to do so may be dangerous and may void certain
provisions of your warranty.
For further assistance, please call 24hr 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 No warranty applies to paint finishes except for manufacturing
to the purchaser that defects in material or workmanship defects apparent within 30 days from the date of installation.
will be repaired or replaced without charge for a period The Company neither assumes nor authorizes any person to
of 18 months from date of shipment, or 12 months from assume for it any other obligation or liability in connection
the start date of operation, whichever expires first. Any with the product(s).
claim for warranty must be reported to the sales office
The Purchaser agrees that all warranty work required after
where the product was purchased for authorized repair or
the initial commissioning of the product will be provided
replacement within the terms of this warranty.
only if the Company has been paid by the Purchaser in full
Subject to State or Provincial law to the contrary, the accordance with the terms and conditions of the contract.
Company will not be responsible for any expense for
The Purchaser agrees that the Company makes no warranty
installation, removal from service, transportation, or
or guarantee, express, implied or statutory, (including any
damages of any type whatsoever, including damages
warranty of merchantability or warranty of fitness for a
arising from lack of use, business interruptions, or
particular purpose) written or oral, of the Article or incidental
incidental or consequential damages.
labour, except as is expressed or contained in the agreement
The Company cannot anticipate or control the conditions herein.
of product usage and therefore accepts no responsibility
LIABILITY: Technical data contained in the catalog or
for the safe application and suitability of its products when
on the website is subject to change without notice. The
used alone or in combination with other products. Tests
Company reserves the right to make dimensional and other
for the safe application and suitability of the products are
design changes as required. The Purchaser acknowledges
the sole responsibility of the user.
the Company shall not be obligated to modify those articles
This warranty will be void if, in the judgment of the manufactured before the formulation of the changes in
Company, the damage, failure or defect is the result of: design or improvements of the products by the Company.
• Vibration, radiation, erosion, corrosion, process The Company shall not be liable to compensate or indemnify
contamination, abnormal process conditions, the Purchaser, end user or any other party against any actions,
temperature and pressures, unusual surges or pulsation, claims, liabilities, injury, loss, loss of use, loss of business,
fouling, ordinary wear and tear, lack of maintenance, damages, indirect or consequential damages, demands,
incorrectly applied utilities such as voltage, air, gas, water, penalties, fines, expenses (including legal expenses), costs,
and others or any combination of the aforementioned obligations and causes of action of any kind arising wholly or
partly from negligence or omission of the user or the misuse,
causes not specifically allowed for in the design
incorrect application, unsafe application, incorrect storage
conditions or,
and handling, incorrect installation, lack of maintenance,
• Any act or omission by the Purchaser, its agents, improper maintenance or improper operation of products
servants or independent contractors which for greater furnished by the Company.
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.
Edmonton Oakville Orillia Houston Denver
1-780-466-3178 1-800-410-3131 1-877-325-3473 1-800-654-2583 1-855-244-3128
F 780-468-5904 1-905-829-4422 1-705-325-3473 1-713-433-2600 1-303-979-7339
5918 Roper Road F 905-829-4430 F 705-325-2106 F 713-433-4541 F 303-979-7350
Alberta, Canada T6B 3E1Unités de chauffage antidéflagrantes
XGB Series
Instructions d’installation, d’utilisation et d’entretien
La conception sans glycol
Part No. 11110.Rev.1.04 janv 2021 Imprimé au CanadaTable des matières
A. Renseignements généraux 15
A.1 Description�����������������������������������������������������������������������������������������������������������������������������������������15
A.2 Application����������������������������������������������������������������������������������������������������������������������������������������15
A.3 Composition et installation����������������������������������������������������������������������������������������������������15
A.4 Caractéristiques standard������������������������������������������������������������������������������������������������������15
A.5 Options�������������������������������������������������������������������������������������������������������������������������������������������������15
A.6 Thermostats�������������������������������������������������������������������������������������������������������������������������������������15
A.7 Moteurs������������������������������������������������������������������������������������������������������������������������������������������������15
A.8 Accessoires��������������������������������������������������������������������������������������������������������������������������������������� 16
B. Avant l’installation 17
C. Installation et montage 17
C.1 Dimensions��������������������������������������������������������������������������������������������������������������������������������������� 17
C.2 Montage��������������������������������������������������������������������������������������������������������������������������������������������� 17
C.3 Montage avec les trousses de série�������������������������������������������������������������������������������� 18
F.6 Auvents de sortie������������������������������������������������������������������������������������������������������������������������� 20
F.7 Cablâge����������������������������������������������������������������������������������������������������������������������������������������������� 20A. RENSEIGNEMENTS GÉNÉRAUX
A.1 Description ࢦ Éléments muraux à ailettes extra lourds en acier tubulaire
plaqué nickel à basse densité
Les unités à petit cabinet sont offertes en versions 3,75 à 10 kW, et
sont identifiables de par leur moteur interne. Les unités à grand ࢦ Conception sans glycol permettant une inclinaison de 30 º
cabinet, sont offertes en versions 10 à 35 kW. Reportez-vous à vers le bas
la section C.1 Dimensions, page 17 pour les dimensions des ࢦ Auvents pivotables offrant une redirection additionnelle de
cabinets. l’air de 35 º
ࢦ Boîtier x-MaxMD breveté avec chariot coulissant simplifiant
A.2 Application l’installation et l’entretien
Conçus tout particulièrement pour le chauffage de zones ࢦ Boîtier robuste en acier inoxydable de ca. 16
industrielles où peuvent se trouver des substances possiblement ࢦ Borniers de connexion pour thermostat externe
explosives. Les environnements dangereux comprennent :
ࢦ Limites doubles élevées de réinitialisation automatique
ࢦ Stations d’épuration et usines de traitement des eaux usées
ࢦ Contacteurs déclassés, pour une plus longue vie utile
ࢦ Raffineries pétrolières
ࢦ Le boîtier-connecteur de l’alimentation est isolé, et ne requiert
ࢦ Stations de compression aucun joint de passage
ࢦ Usines de pâte et papier
ࢦ Cabinets d’entreposage de peinture A.5 Options
ࢦ Cimenteries ࢦ Thermostat intégré réglable de l’extérieur
ࢦ Mines ࢦ Commutateur intégré
ࢦ Construction antimoisissure
A.3 Composition et installation
ࢦ Interrupteur « automatique / arrêt / ventilateur seul »
Les unités de chauffage NorsemanMC de Thermon réchauffent ࢦ Lampe témoin
de manière efficace et sécuritaire, à l’aide d’éléments muraux à
ailettes extra lourds en acier tubulaire. ࢦ Limite élevée pour la réinitialisation manuelle
Dans les structures aux plafonds élevés, il se peut que certaines
unités n’offrent pas la puissance nécessaire afin de permettre A.6 Thermostats
aux flux d’air d’atteindre le plancher. La conception sans glycol de
Thermon offre une grande variété de thermostats antidéflagrants
l’unité XGB permet à celle-ci d’être inclinée 30 º sous l’horizontale,
convenant à presque tous les besoins. Les unités de chauffage
en plus d’offrir une redirection de l’air à 35 º, à l’auvent de sortie.
NorsemanMC sont offertes avec thermostats intégrés à ampoule,
Pour une ventilation latérale, l’auvent au complet peut être monté
réglables de l’extérieur, en option, pouvant être convertis sur
à 90 º.
place au modèle inviolable. Les thermostats à distance sont aussi
Le joint installé à l’assemblage offre l’isolation nécessaire entre les offerts au besoin.
boîtiers d’alimentation et de commande. Pour les applications de
Division 2, Zone 1 et Zone 2, un joint de passage peut ne pas être
A.7 Moteurs
nécessaire.
Pour faciliter l’installation, les unités de chauffage Moteur antidéflagrant 1725 tr/min à puissance fractionnaire, avec
antidéflagrantes NorsemanMC XGB offrent le boîtier breveté roulement à billes à double paroi et protecteur de surcharge
x-MaxMD avec chariot de bornier coulissant pour la connexion à thermique intégré. Les unités à petit cabinet utilisent un moteur
l’alimentation électrique 1/12 cv homologué classe I, groupe D et classe II, groupes E, F et G.
Les unités à grand cabinet utilisent un moteur 1/2 hp homologué
classe I, groupes C et D et classe II, groupes E, F et G, en formule
A.4 Caractéristiques standard standard.
Voir Figure 1 et Figure 2, page 16.
ࢦ Certifié CSA C/US pour les endroits dangereux. Unités à
Renseignements généraux
petit cabinet homologuées classe I, div. 1 et 2, groupe D;
classe II, div. 1 et 2, groupes E, F et G. Unités à grand cabinet
homologuées classe I, div. 1 et 2, groupes C et D; classe II, div. 1
et 2, groupes E, F et G.
Remarque: La classe II et certains groupes atmosphériques
peuvent ne pas être offerts à toutes les cotes kW.
ࢦ Marquage par zone
ࢦ Modèles offerts entre 3,75 et 35 kW
ࢦ 208 à 600 V, moteur 1 ou 3 phases
15A.8 Accessoires
Les unités de chauffage antidéflagrantes NorsemanMC s’adaptent sur les plafonds muraux, les tuyaux de 3 po ou les supports au
facilement à la plupart des besoins en matière de montage. sol. Les différentes configurations offrent la plus grande flexibilité
Chaque unité de chauffage est équipée d’un support de fixation possible pour chaque direction de circulation. Le support de
pivotant compatible avec la plupart des trousses de montage en fixation pivotant (en série pour toutes les unités de chauffage)
option. comprend des trous de fixation pour une chaîne de sécurité.
Les trousses de montage en option permettent d’installer l’unité
2.
Caractéristiques de série, pour l’unité à petit cabinet:
1) Moteur antidéflagrant 1/12 cv 2.
ha
STANDARD FEATURES,
2) SMALL CABINET
Crépine d’admission d’air UNIT:
ca
STANDARD FEATURES, SMALL CABINET UNIT:
3) Éléments muraux
1) 1/12 hp explosion-proof motor à ailettes extra lourds en acier tubulaire 2.
2) Inlet guard plaqué nickel
1) 1/12 hp explosion-proof motor cl
3) Extra heavy
2) Inlet 4) wall
guard tubular
Boîtiers steel finned
à bornier heating elements
antidéflagrants with
x-MaxMD brevetés ar
nickel plated
3) Extra heavy finish
wall tubular steel finned heating elements with
4) Patented 5) Circuit
x-Max® de commandeterminal
explosion-proof 120 V à :housing
nickel plated finish 2.
5) 120V control circuit
– includes:
4) Patented x-Max® explosion-proof terminaldéclassé
Contacteur magnétique housing or
• Derated
5) 120V control magnetic contactor
circuit includes: D
– Limites doubles élevées de réinitialisation automatique
• Dual automatic
• Derated resetcontactor
magnetic high limits VO
• Dual–automatic
• Transformer reset high limits
Transformateur N
6) Heavy duty • Transformer
16 ga. stainless steel casing
6) Heavy duty 16 ga. stainless steel casing
6) Heavy
7) Outlet louverdutyassembly
16 ga. stainless steel casing 3.
7) Outlet
8) Swivel louver assembly
7) Boîtier
bracket robuste en acier inoxydable de ca. 16
8) Swivel
9) Factory bracketconduit seal
installed Th
8) Auvent de sortie
9) Factory
10)Supply installed housing
connection conduit seal co
10)Supply9) connection
Support housing
dewiring
fixation pivotant
11)Terminal block for supply and thermostat connection
11)Terminal block for supply wiring and thermostat connection 3.
10) Joints de passage en série Ta
11) Boîtier du bornier d’alimentation
12) Borniers de l’alimentation et du thermostat externe
Figure
Figure1A
1A--Small
Small Cabinet XGBUnit
Cabinet XGB UnitHeater
HeaterComponents
Components
C
Figure 1 – Composants de l’unité de chauffage XGB à petit cabinet
Caractéristiques de série, pour l’unité à grand cabinet: C
1) Moteur antidéflagrant 1/2 cv
2) Crépine d’admission d’air grillagée
STANDARD
STANDARD FEATURES,
FEATURES, LARGECABINET
LARGE CABINETUNIT:
UNIT:
3) Éléments muraux à ailettes extra lourds en acier tubulaire
1) 1) 1/2
1/2 hp explosion-proof
plaqué nickel
hp explosion-proof motor
motor
2) 2) Inlet
Inlet wirewire guard
guard
4) Boîtiers à bornier antidéflagrants x-MaxMD brevetés
3) Extra heavy wall tubular steel finned heating elements with
3) Extra heavy wall tubular steel finned heating elements with
nickel5)plated finishde commande 120 V à :
Circuit
nickel plated finish
4) Patented x-Max® explosion-proof terminal housing
4) Patented x-Max® – explosion-proof
Contacteur terminal
magnétique housing
déclassé
5) 120V control circuit includes:
5) 120V control circuit
• Derated includes:
magnetic contactor
– Limites doubles élevées de réinitialisation
• Derated magneticreset
• Dual automatic contactor
automatiquehigh limits
• Dual automatic reset high limits
• Transformer
• Transformer
• Fan– delay Transformateur
relay
• Fan delay
• Control
–
relay
fuse
Relais de ventilateur temporisé
• Control
6) Heavy fuse
duty 16 ga. stainless steel casing
6) Heavy duty
7) Outlet 16– ga.
louver Fusible
stainless
assembly de commande
steel casing
7) Outlet louver
8) Swivel assembly
6)bracket
Boîtier robuste en acier inoxydable de ca. 16
9) Factory
8) Swivel installed conduit seal
bracket
Renseignements généraux
10)Supply
9) Factory 7) connection
Auvent
installed de
conduit sortie
housing
seal
11)Terminal block
10)Supply connection
8) Support for supply
housing wiringpivotant
de fixation and thermostat connection
12)Motor mount
11)Terminal block for supply wiring and thermostat connection
13)Motor 9)mountJoints de passage en série
casing
12)Motor mount
13)Motor mount casing connecteur d’alimentation
10) Boîtier
11) Borniers de connexion pour alimentation et thermostat
externe
Figure 1B - Large Cabinet XGB Unit Heater Components
12) Support à moteur
Figure 1B - Large Cabinet XGB Unit Heater Components
13) Boîtier de support à moteur
16 Figure 2 – Composants de l’unité de chauffage XGB à grand cabinetYou can also read
