Norseman Xpas Guide

Special Notes

It is important to read this entire document and to keep it for future reference.

The following special notices highlight important information in the installation

and maintenance sections. Each serves a special purpose and is displayed

in the format shown:

This symbol indicates a potentially hazardous situation, which, if not

avoided, can result in personal injury or damage to the equipment.

This symbol indicates a potentially hazardous situation, which,

if not avoided, may be a shock hazard.

This symbol indicates an imminently hazardous situation, which,

if not avoided, could result in death or serious injury.

CAUTION

WARNING

Part No. M11882.Rev.6.01 August 2019 Printed in Canada

XPA Series

Explosion-Proof Panel Heater

Installation, Operation, & Maintenance Instructions

TABLE OF CONTENTS

A. Product Certification 2

B. Pre-Installation 3

C. Installation 3

C.1 General Requirements..........................................................................................3

C.2 Mounting Bracket Installation: XPA & XPAS Heaters.............................................4

C.3 Mounting Bracket Installation: XPAR Heaters .......................................................4

D. Wiring 6

D.1 General.................................................................................................................6

D.2 Wire Guard (optional)............................................................................................6

E. Start-up 6

F. Maintenance 7

G. Repairs 7

H. Troubleshooting 7

Product Certication / Pre-installation / Installation

A. PRODUCT CERTIFICATION

Depending on the particular model ordered, the heater is suitable

for the following areas:

• CSA C/US Certied for Class I, Div 1, Groups A, B, C, D or

Groups C, D, CSA Type 4; Temp. Code T2 (215°C) T2D, T3,

T3B, T3C or T4

• ATEX II 2G Ex d IIC or IIB, T2 (215°C), T3 or T4, GbIP66

• IECEx Ex d IIC or IIB, T2 (215°C), T3 or T4, Gb, IP66

NOTE: - Standard XPA Models: -50°C to +40°C

- High Ambient XPA Models: -50°C to +55°C or 60°C

depending on model. CSA Only

B. PRE-INSTALLATION

1. Initially, inspect the heater for possible damage due to

shipping and handling. Claims for shipping damages shall

be placed with the carrier.

2. Check the heater nameplate to ensure that the heater area

classication and temperature code are suitable for the

hazardous area classication. For details of hazardous

locations with potential for explosion, refer to the

Canadian Electrical Code or National Electrical Code.

3. Check to ensure that the heater voltage is the same as the

supply voltage.

4. The heater must be installed by qualied personnel in strict

compliance with national and local electrical codes.

WARNING

WARNING. Do not connect the heater to an electrical

supply voltage other than that shown on the

productnameplate.

Figure 1 – Model XPAL/XPAS convection heater

Figure 2 – Model XPAL/XPAS convection heater

Figure 3 – Model XPAR convection heater

C. INSTALLATION

C.1 General Requirements

1. The XPA heater is intended for industrial use and is to

be mounted in an enclosure. The main function of this

heater is to prevent the damaging effects of moisture and

condensation on the components inside the enclosure. It

is not intended for comfort heating use.

2. XPAL and XPAS heaters are approved for enclosure

mounting either horizontally or side mounted with the

junction box at the side. XPAR heaters are approved for

vertical mounting only with the junction box at the bottom.

Ensure that the enclosure is sufciently strong to support

the heater which, depending on the model, could weigh

up to 15 lbs (7 kg).

3. Do not recess the XPA heater into the wall. Use the

bracket supplied with the unit to ensure that the minimum

spacing from the wall of 1" (25 mm) is maintained.

4. If more than one heater is being installed, maintain at least

3" (76 mm) between adjacent heater extrusions.

5. The XPA heater relies on natural convection and “black

heat” radiation to transfer heat to the surroundings. See

Table 1, page4 for minimum clearances above heater.

Installation

Table 1 – Minimum clearance above heater

T-Code

XPAS XPAL

Side Mount

XPAL

Horizontal

XPAR

Vertical

in mm in mm in mm in mm

T4 6152 6152 6152 6152

T3C/T3B 6152 6152 9229 6152

T3 12 305 9229 12 305 9229

T2D 15 381 12 305 18 457 12 305

6. Maintain a 3" (76 mm) clearance and NEVER LESS THAN 1"

(25 mm) clearance in front of and at the sides of the heater.

7. The XPAL and XPAS heater relies on vertical convective

ow through its ns to operate properly. The unit must

be mounted in the horizontal or side mount orientation,

as applicable. Under no circumstance can the heater be

mounted vertically on its end with the junction box on

the top or bottom and the at n surfaces in a horizontal

position. The XPAR heater must be mounted vertically with

the junction box at the bottom. Refer to Figure 11– Figure

13, page5 for allowable mounting orientations.

CAUTION

CAUTION. The heater’s surface is hot when the heater

is energized. Keep all combustibles away from the

heater and maintain the recommended installation

clearances at all times.

C.2 Mounting Bracket Installation: XPAL & XPAS Heaters

Install heater with the supplied hardware in accordance with

the gures and instructions below (Figure 14 and Figure 15,

page6).

Step 1: Scribe lines into the mounting surface signifying the top

and side of the mounting bracket, indicating where the

mounting bracket will be located after installation (Figure 4

and Figure 5, page4)

Figure 4 – Scribe the top of the mounting bracket

Figure 5 – Scribe the side of the mounting bracket

Step 2: Remove the mounting bracket from the heater and install

it to the mounting surface, aligning the bracket with the

scribe marks from Step 1 (Figure 6, page4)

Figure 6 – Install the mounting bracket

Step 3: Secure the heater to the bracket by tightening the

provided Socket Head Cap Screws into the threaded

holes on each end of the heater (Figure 7, page4).

Figure 7 – Attach mounting bracket to heater itself

C.3 Mounting Bracket Installation: XPAR Heaters

Step 1: Scribe a mark into the mounting surface indicating where

the top part of the mounting bracket will be located after

installation (Figure 5, page4).

Figure 8 – Scribe the drop of the mounting bracket

Step 2: Measure down 0.625” (16 mm) from the scribed mark

and scribe a mark for the top bolt location. Measure an

additional 5.5” (140 mm) from the top bolt location to

indicate the bottom bolt location (Figure 9, page4).

Drill holes at the marked locations for the mounting bolts.

Figure 9 – Measure and scribe the top and bottom hole

locations and drill holes

Installation

Step 3: Pre-install the mounting bolts onto the mounting surface

allowing enough clearance to slide the mounting bracket

under the head of the supplied bolts. Position the heater

onto the mounting bolts and tighten securely (Figure 10,

page5).

Figure 10 – Position heater onto mounting bolts

NOTE: Proper use of supplied mounting bracket will

ensure minimum distance of 1” (25 mm) from the

mountingsurface.

Figure 11 – XPAL and XPAS heater mounting orientations

(horizontal only)

Figure 12 – XPAL and XPAS heater mounting orientations

(horizontal and side mount

Figure 13 – XPAR heater mounting orientations (vertical only)

Figure 14 – XPAL and XPAS heater basic mounting drawing

Figure 15 – XPAR heater basic mounting drawing

CAUTION

CAUTION. Never install one heater above the other.

To ensure safe operation, heater must be installed as

shown in Figure 11– Figure 13, page5). Installation

with ns in the incorrect orientation may result in an

unsafe condition (refer to Table 2, page6)

WARNING

WARNING. Improper orientation of the heater can

affect the safe and reliable operation of the heater.

YES NO NO

YES YES

YES NO

Mounting bracket (included)

Hex bolts (included)

1/4-20UNC x 3/4" LG

Socket head

cap screws (included)

1/4-20 UNC x 1/2"

Protection grill

(optional)

3.31"

(84.1 mm)

Ø3/4 NPT threaded

conn. (typ.)

2.294"

(58.3 mm)

3/4" NPT THREADED

CONN. (TYP.)

MOUNTING BRACKET

SLIDE MOUNT ONTO

PANEL MOUNTED BOLTS

PROTECTION GRILL

(OPTIONAL)

5.50”

(139.7 mm)

0.625”

(15.9 mm)

7.00”

(178 mm)

0.625"

(15.9 mm)

5.50" (139.7 mm)

Mounting bracket slide mount

onto panel mounted bolts

Protection grill

(optional)

3/4" NPT

threaded conn.

(typ.)

2.294"

(58.3 mm)

Installation

Table 2 – Mounting orientation (Standard XPA Models)

Length Wattage Fig. No. Class I, Div 1& 2, see notes for Groups Weight Part No.

T2/T2D T3 T3B/T3C T4 lbs (kg)

4.375”

(111 mm)

75 12    

7.4 (3.4)

XPAS-075

100 12    –XPAS-100

125 12    –XPAS-125

150 12   – – XPAS-150

200 12   – – XPAS-200

250 12 – – – XPAS-250

9”

(229 mm)

100 13    

12.8 (5.9)

X PA L-10 0

150 13     X PA L-15 0

200 13     X PA L- 20 0

250 13    Horizontal Only X PA L- 25 0

300 13    –X P A L- 3 0 0

400 13   Horizontal Only –X PA L- 4 0 0

500 13   – – XPAL-500

600 13 Horizontal Only – – X PA L- 6 0 0

700 13 Horizontal Only – – – X PA L-7 0 0

7”

(178 mm)

50 14 Vertical Only Vertical Only Vertical Only Vertical Only

3.8 (1.7)

XPAR-050

80 14 Vertical Only Vertical Only Vertical Only –XPAR-080

125 14 Vertical Only Vertical Only – – XPAR-125

150 14 Vertical Only – – – XPAR-150

Table 3 – High Ambient XPA Models

Length Wattage Fig. No. Temperature Code Part No.

T2D(1) T3 T3A T3C

4.375”

(111 mm)

75 12 XPASH-075

100 12 n/a XPASH-10 0

125 12    n/a XPASH-125

150 12 n/a n/a n/a XPASH-150

200 12 n/a n/a n/a XPASH-200

9”

(229 mm)

100 13 XPALH-100

150 13 XPALH-150

200 13 XPALH-200

250 13 Horizontal Only XPALH-250

300 13 n/a XPALH-300

400 13 Horizontal Only Horizontal Only n/a XPALH-400

500 13 n/a n/a n/a XPALH-500

600 13 Horizontal Only n/a n/a n/a XPALH-600

7”

(178 mm)

50 14 Vertical Vertical Vertical Vertical XPARH-050

80 14 Vertical Vertical Vertical n/a XPARH-080

125 14 Vertical n/a n/a n/a XPARH-125

NOTE: 1. T2D models are rated for 55°C maximum ambient temperature.

2. All other heaters are rated for 60°C maximum ambient temperature.

3. High ambient units only available with XJB-4 junction box.

NOTE: Groups A, B, C & D, IIC apply when XJB-4 and XTWA junction boxes.

Groups C & D, IIB apply when using XT-311 and XT-411 junction boxes with adjustable thermostats.

Wiring / Start-Up

D. WIRING

D.1 General

1. Whenever hazardous materials are present, ensure that

the junction box covers are secure before energizing the

heater. Follow all applicable national and local codes

for hazardous location installation. The XPA heater is

available with a terminal housing. A terminal housing

may be required by national and/or local codes for

hazardouslocations.

2. Use supply wires suitable for 221°F (105°C) for standard

units or 257°F (125°C) for hight ambient units.

3. The connecting supply wires shall be installed to provide

for permanent wiring and have adequate protection

against mechanical damage.

4. Use approved conduit and conduit seals as required by

the national and local codes for hazardous locations.

5. To provide maximum protection, each XPA heater should

be fused individually using HRC fuses.

6. All heaters come factory prewired ready for direct

connection to power supply leads (see Figure 16,

page7).

6.1 Connect the power leads to terminals marked L1

and N or L2.

6.2 Connect the ground wire to the ground connection

located in the heater junction box cover.

7. Replace junction box cover securely. Do not

over-tighten.

8. For Cable Only XPA Units, heaters must be installed to

an unisulated grounded metal surface with the mounting

bracket supplied. Please refer to national and/or local

electrical codes for proper grounding installation in

hazardous locations.

Figure 16 – Wiring diagram for XPA convection heater

WARNING

WARNING. Whenever hazardous materials are present,

ensure that the terminal housing covers, plugs, etc,. are

secured (but not over-tightened) before energizing

theheater.

CAUTION

CAUTION. All circuits must be in the open position

before removing junction or terminal box covers.

CAUTION

CAUTION. Use supply wires suitable for 221°F (105°C)

or 257°F (125°C). Supply wires are to be fused

appropriately size HRCfusing.

WARNING

WARNING. Use approved conduit and conduit seals as

required by hazardous location standards.

CAUTION

CAUTION. Ensure that no power is connected to the

equipment prior to making any connections.

D.2 Wire Guard (optional)

Install wire guard by inserting wire arms into holes on heater ns.

E. START-UP

1. If the unit contains a junction box ensure the junction box

lid is securely installed onto the terminal housing.

2. Check to ensure that all plugs, screws, and covers are

securely in place.

3. Check associated electrical equipment.

4. Check that all wall mounting bracket connections are tight.

5. Turn on supply power.

6. If the unit is equipped with an adjustable thermostat, dial

the temperature required by twisting the thermostat knob.

WARNING

WARNING. To prevent unsafe operation of the heater

do not exceed the maximum allowable ambient

operating temperature of 104°F (40°C).

WARNING

WARNING. To prevent unsafe operation of the heater

do not exceed the maximum allowable ambient

operating temperature of 55°C or 60°C on high

ambient units.

Maintenance / Repair / Troubleshooting

Oakville

1-800-410-3131

1-905-829-4422

F 905-829-4430

Orillia

1-877-325-3473

1-705-325-3473

F 705-325-2106

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 rst. Any claim for warranty must

be reported to the sales ofce 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

specically 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 nishes 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 tness 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, nes, expenses

(including legal expenses), costs, 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.

Edmonton

1-780-466-3178

F 780-468-5904

5918 Roper Road

Alberta, Canada T6B 3E1

Houston

1-800-654-2583

1-713-433-2600

F 713-433-4541

Denver

1-855-244-3128

1-303-979-7339

F 303-979-7350

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.

PLEASE ADHERE TO INSTRUCTIONS IN THIS MANUAL

Failure to do so may be dangerous and may void certain provisions of

your warranty.

F. MAINTENANCE

Check the following before every heating season:

WARNING

WARNING. Disconnect power from the heater before

performing any maintenance. Failure to do so can result

in property damage, injury, or death.

WARNING

WARNING. Painted and anodized surfaces have a

potential risk of electrostatic discharge. Do not use a

dry cloth to clean this device, use only a damp cloth.

G. REPAIRS

H. TROUBLESHOOTING

WARNING

WARNING. Only open the junction box if it is safe to

doso!

These heaters contain a thermal fuse. If the unit is not operating

within proper constraints, the unit may have overheated, causing

the thermal fuse to open. Check the thermal fuse by disconnecting

the power, opening the junction box and measuring the resistance

across the terminals. If the resistance is innite, the fuse has been

triggered and the unit must be sent to Thermon Heating Systems,

for repair.

1. Remove junction box cover and inspect the electrical

connections. Ensure the connections are tight and wires

are not burned or frayed.

2. Inspect the heater and its surroundings. Make sure that

heater clearances are maintained and no debris is around

the heater or stuck in the ns.

3. Check all mounting hardware and ensure fasteners

aretight.

4. Replace the cover securely and turn on the

power supply.

1. If the heater malfunctions, and is no longer operating,

send the heater to the factory for servicing. Do not attempt

to service the unit.

2. When returning the heater you can ll out the online

repair form at:

http://www.ccithermal.com/online-repair-form.php

Or, include the following information with the heater

whenshipping:

– Company name and address

– Contact name

– Telephone/fax number/email

– Product model and serial numbers

– Tagging codes

– Advise if an estimate is required prior to starting

the repair

– P.O. Number

– Description of problem(s) and/or require repairs

– Special instructions (if applicable)

– Return shipping instructions

NOTE: If your circuit contains a thermostat and the ambient

temperature is high enough to turn off the thermostat,

the measured resistance will be innite, this test will

not check the thermal fuse.