Edmonton Head Office & Factory 5918 Roper Road, Edmonton, Alberta, Canada T6B 3E1 P F Toll Free

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1 1.0 GENERAL INFORMATION Edmonn Head Office & Facry 5918 Roper Road, Edmonn, Alberta, anada T6B 3E1 P F Toll Free info@ccirmal.com Installation, Operation & Maintenance Instructions for NorsemanTM XGB ExplosionProof Unit Heater 3.75 kw, Hz Units STANDARD PRODUT FEATURES Part No. 111 Rev DESRIPTION I Thermal s XGB explosionproof unit is latest addition NORSEMAN line of hazardous location heating products. The small cabinet units are available with ratings from 3.75 kw, can be identified by ir internally mounted mor. The large cabinet units (shown below) are available from kw up kw. See section 3.1 for cabinet dimensions. APPLIATION Designed specifically for heating industrial spaces where potentially explosive substances are or may be present. Typical hazardous location environments include: Water Sewage Treatment Plants Oil Refineries ompressor Stations Pulp Paper Mills Paint Srage Booths ement Plants Mines ONSTRUTION AND INSTALLATION GLYOL FREE DESIGN I Thermal s NORSEMAN unit s use extra heavy wall finned tubular steel heating elements provide safe, efficient heat transfer environment. The does not contain glycol, decreasing maintenance costs. Flow adjustment in structures with high ceilings, or units may not have range of motion needed direct air flow floor. The glycolfree design of XGB allows unit be tilted a º angle below horizontal, with an additional º of airflow redirection provided by outlet louver. For lateral airflow, entire louver assembly can be rotated 90º. No conduit seal required a facry installed conduit seal provides necessary isolation between supply control housings. In Division 2, Zone 1 Zone 2 applications, a field installed conduit seal may not be required. Simplified wiring facilitate installation, NORSEMAN explosionproof unit s patented xmax housing with slide out terminal block trolley for connection of electrical supply. SA /US ertified for hazardous locations. Small cabinet units approved for lass I, Div 1 & 2, Group D; lass II, Div. 1 & 2, Groups E, F G. Large cabinet units approved for lass I, Div. 1 & 2, Groups & D; lass II, Div. 1 & 2, Groups E, F & G. Note: lass II some atmospheric groups are not available in every kw rating. Optional Zone marking available. Ratings from 3.75 kw. 8 V, 1 or 3 phase Low watt density extra heavy wall tubular steel finned heating elements with nickel plated finish Glycolfree design allows be tilted º downward Rotatable outlet louvers provide º of additional airflow redirection Patented xmax housing with track trolley system simplifies installation servicing Heavy duty 16 ga. Stainless steel casing Terminals for remote rmostat connection Dual aumatic reset high limits ontacr derated for extended service life Isolated supply connection housing eliminates need for conduit seals OPTIONAL FEATURES Builtin, externally adjustable rmostat Builtin disconnect Moistureresistant construction Au/off/only switch Pilot light Manual reset high limit THERMOSTATS I Thermal offers a wide variety of explosionproof rmostats suit most every need. NORSEMAN unit s are available with optional builtin, externally adjustable, bulb type rmostats which are fieldconvertible tamperproof. Thermostats for remote mounting can also be provided on request. MOTORS Fractional horsepower, 17 rpm explosionproof mor with double shielded ball bearings builtin rmal overload. Small cabinet units use 1/12 hp mor approved for lass I, Group D; lass II, Group E, F, G. Large cabinet units use 1/2 hp mor approved for lass I, Groups D; lass II, Groups E, F & G, as stard. AESSORIES NORSEMAN explosionproof unit s readily adapt most mounting requirements. Each is equipped with a basic swivel bracket that is compatible with any of optional mounting kits. Optional mounting kits allow unit be installed on a wall ceiling, 3 pipe, or floor st. Each mounting configuration provides maximum flexibility for outlet flow direction. The swivel bracket (stard on all s) s holes for affixing a safety chain.

2 STANDARD FEATURES, SMALL ABINET UNIT: 1) 1/12 hp explosionproof mor 2) Inlet guard 3) Extra heavy wall tubular steel finned heating elements with nickel plated finish 4) Patented xmax explosionproof terminal housing 5) 1V control circuit includes: Derated magnetic contacr Dual aumatic reset high limits Transformer 6) Heavy duty 16 ga. stainless steel casing 7) Outlet louver assembly 8) Swivel bracket 9) Facry installed conduit seal ) Supply connection housing 11) Terminal block for supply wiring rmostat connection Figure 1A Small abinet XGB Unit Heater omponents STANDARD FEATURES, LARGE ABINET UNIT: 1) 1/2 hp explosionproof mor 2) Inlet wire guard 3) Extra heavy wall tubular steel finned heating elements with nickel plated finish 4) Patented xmax explosionproof terminal housing 5) 1V control circuit includes: Derated magnetic contacr Dual aumatic reset high limits Transformer Fan delay relay ontrol fuse 6) Heavy duty 16 ga. stainless steel casing 7) Outlet louver assembly 8) Swivel bracket 9) Facry installed conduit seal ) Supply connection housing 11) Terminal block for supply wiring rmostat connection 12) Mor mount 13) Mor mount casing Figure 1B Large abinet XGB Unit Heater omponents

3 2.0 PREINSTALLATION 2.1 Inspect for possible damage due shipping hling. laims for shipping damages shall be placed with carrier. 2.2 heck nameplate ensure that area classification code are suitable for hazardous area classification. 2.3 Verify that nameplate voltage, phase wattage are as ordered are same as electrical power supply available. DO NOT ONNET THE XGB UNIT HEATER TO A SUPPLY VOLTAGE OTHER THAN THAT SHOWN ON THE PRODUT NAMEPLATE. 3.0 INSTALLATION AND MOUNTING The must be installed by qualified personnel in strict compliance with electrical code. 3.1 DIMENSIONS Table 1: Dimensions Weights (See Fig. 2) A B D D2 Weight lbs (kg) 3.2 MOUNTING NORSEMAN explosionproof unit s can be mounted a ceiling, wall 3 pipe, or floor st. Ensure that mounting surface is sufficiently strong support, which, depending on model, could weigh up 185lbs, (84kg). Provide sufficient stiffness prevent excessive vibration withst harsh situations such as transportable installations. See 3.1 for dimensions weights The must be positioned with a minimum cm (6 ) side clearance from all surrounding surfaces must be mounted at least 61 cm (24 ) from floor for small cabinet units, or 24 cm (96 ) from floor for large cabinet units. It is best maximize clearances allow freedom of rotation. Ensure that airflow in out of unit is not restricted All mounting studs, bolts, nuts or fasteners shall be secured so that re is no possibility of loosening over prolonged periods. Periodically inspect at regular intervals retighten if necessary All stard mounting kits are designed support on its centre of gravity allow for º tilt in vertical direction 3 º rotation in horizontal. Note that horizontal rotation is fixed after ceiling bracket is bolted its support. Small abinet A16 7/8 B 8 7/8 3/16 D1 171/2 D2 Weight (429) (2) (6) (445) lbs (kg) Small 167/ 8 87/ 8 3/16 171/2 0 abinet (429) (2) (6) (445) (45) Large 31 1/4 1/8 8 7/8 29 1/4 kw abinet (794) Large 1/8 87/8 291/4 311/4 145 (66) abinet (511) (2) (743) (794) kw 185 (84) B 0 (45) kw 145 (66) kw 185 (84) For specific mounting instructions refer appropriate paragraph of section If lifting with slings, take special care not damage casing For large cabinet units, leave on shipping skid use skid as a lifting platform facilitate installation of. A D1 D2 AIRFLOW Figure 2 XGB Heater Dimensions

4 3.3 MOUNTING WITH STANDARD KITS EILING MOUNTING a) Install ceiling bracket mounting surface with desired orientation. Ensure that LINE A (Figure 3), a line drawn perpendicular bolt holes in mounting bar, is pointed in desired direction of airflow. The ceiling bracket must be secured mounting surface using as many as six (but not less than two) 5/8 fasteners (not provided). Make certain that lockwashers are used under all nuts or lag bolts. b) Hoist up ceiling bracket. Line up large centre hole in swivel bracket with large hole in mounting bar WALL MOUNTING a) Install ceiling bracket wall bracket with desired orientation. Ensure that LINE A (Figure 4), a line drawn perpendicular bolt holes in mounting bar, is pointed in desired direction of air flow. Secure wall bracket mounting surface. The wall bracket must be secured mounting surface using as many as six (but not less than four) 5/8 fasteners (not provided). Make certain that lockwashers are used under all nuts or lag bolts. b) Follow steps b) c) outlined in c) Insert 1/2 bolt loosely secure with nut washers provided. Tilt at desired angle horizontal secure with 3/8 bolt. Tighten 1/2 bolt. MOUNTING SURFAE 11/16 dia. mounting holes 5/8 flatwasher, lockwasher, nut WALL BRAKET EILING BRAKET MOUNTING BAR 3/8 Flat Washer, Lock Washer, Nut 1/2 Flat Washer, Lock Washer, Nut LINE A MOUNTING SURFAE 11/16 Dia. Mounting Holes 3/8 bolt 1/2 bolt SWIVEL MOUNTING BRAKET 5/8 Bolt 3/8 Bolt 1/2 Bolt SWIVEL MOUNTING BRAKET LINE A EILING BRAKET 5/8 Bolt MOUNTING BAR 3/8 flatwasher, lockwasher, nut 1/2 flatwasher, lockwasher, nut Figure 3 eiling Mounting Figure 4 Wall Mounting

5 3.3.3 POST MOUNTING a) Install ceiling bracket wall bracket with desired orientation. Ensure that LINE A (Figure 5), a line drawn perpendicular bolt holes in mounting bar, is pointed in desired direction of air flow. Secure wall bracket post using 1/2 Ubolts, nuts washers supplied. Make certain lockwashers are used under all nuts or lag bolts. b) Follow steps b) c) outlined in FLOOR STAND MOUNTING a) At times adequate support for may not be available within structure of space be heated. In this situation, floor mount st may be desirable. Telescoping square tubing on a support base allows unit be positioned at desired height above floor anywhere between 1.8 m (6 ) 3 m ( ). b) Position base of st on floor in desired orientation. Ensure that LINE A (Figure 6), a line drawn perpendicular bolt holes in mounting bar, is pointed in desired direction of air flow. 5/8 bolt 1/2 bolt 3 PIPE (NOT INLUDED) 1/2 Ubolt 1/2 flat washer, lock washer, nut WALL BRAKET LINE A 5/8 flatwasher, lockwasher, nut EILING BRAKET c) Next, st is be lagged a solid floor prevent unit from ppling. Four 11/16 diameter holes are provided in base of st for this purpose. d) Raise mounting frame desired height secure base using hardware supplied. e) Hoist up mounting frame. f) Insert 1/2 bolt loosely secure with nut lockwashers provided. Tilt at desired angle horizontal secure with 3/8 bolt. Tighten 1/2 bolt. 3/8 bolt MOUNTING BAR MOUNTING FRAME 3/8 flat washer, lock washer, nut MOUNTING BAR SWIVEL MOUNTING BRAKET 1/2 flat washer, lock washer, nut 3/8 flatwasher, lockwasher, nut 3/8 Bolt 1/2 flatwasher, lockwasher, nut 1/2 Bolt SWIVEL MOUNTING BRAKET Figure 5 Post Mounting 5/8 Bolt 5/8 flatwasher, lockwasher, nut LINE A Figure 6 Floor Mounting St

6 3.4 OUTLET LOUVRES A louvred grill on outlet end is supplied as stard. The louver assembly may be positioned eir horizontally or vertically for maximum flexibility Stard s are shipped with louvers in horizontal position. To change orientation of louvers vertical, remove three mounting screws securing louver assembly cabinet rotate louver 90º desired direction. 3.5 WIRING AUTION: Whenever hazardous materials are present, ensure that terminal housing covers, plugs, etc., are secured (but not overtightened) before powering. All circuits must be in open position before removing junction or terminal box covers The must be installed by qualified personnel in strict compliance with electrical code All s are facry prewired ready for direct connections power supply leads. atalog Number XGB038T3B XGB050T3B XGB075T3A XGB0T2 XGB0T3B XGB0T3B XGB0T3B kw Voltage Max Line Amps Recommended Fuse Size (Amps) 1 Ø 3 Ø 1 Ø 3 Ø The must be individually fused, preferably with lass J timedelay fuses for maximum safety. Unless stated orwise in your local code, fuse size shall be 1% of line current or next size larger. See Table 2 for recommendations. XGB2T3A XGB0T2D XGB0T2D Use approved conduit conduit seals are required by code for hazardous location The NORSEMAN explosionproof unit s are equipped with a facry installed conduit seal between control supply housings. In Division 2, Zone 1 Zone 2 applications, a field installed conduit seal may not be required. XGB3T2D XGB0T Supply wiring connections are made by accessing over of side mounted supply connection housing (terminal box). Slide control trolley out of housing just enough access terminal block (Figure 8) onnect power leads terminals marked L1 L2 for single phase L1, L2 L3 for three phase s making certain leave some excess wire ensure that leads may slide back in housing with trolley. See Figure 9 for control circuit Figure for suggested wiring. Exercise care avoid damage wires caused by threads on housing. TERMINAL BLOK Figure 8 XGB Terminal Block Trolley Figure

7 L3 H3 4.0 TEMPERATURE 4.0 TEMPERATURE ONTROL ONTROL L3 H3 1 OR 3Ø L2 H2 TO HEATING 1 OR 3Ø SUPPLY L2 H2 TO HEATING LOAD SUPPLY L1 H1 LOAD 4.1 BUILTIN 4.1 BUILTIN THERMOSTAT THERMOSTAT L1 H1 REMOVE JUMPER FOR When specified, When specified, unit comes unit equipped comes equipped with a builtin with rmostat a builtin rmostat REMOVE JUMPER FOR OPTIONAL THERMOSTAT X1 OPTIONAL THERMOSTAT prewired prewired all or all stard or stard controls. controls. Set Set X1 1V T1 T2 HILIMITS desired operating desired operating condition. condition. 1V T1 T2 HILIMITS X2 /AUX X2 /AUX M M NO MOTOR 4.2 REMOTE 4.2 REMOTE THERMOSTAT THERMOSTAT NO MOTOR Figure 9A Small abinet XGB Wiring Schematic Install Install XT rmostat XT rmostat in accordance in accordance with instruction with instruction sheet sheet Figure 9A Small abinet XGB Wiring Schematic provided. provided. Terminals Terminals T1 T1 T2 in T2 in supply housing supply are housing are provided provided for connection for connection remote rmostat remote rmostat are prewired are prewired 1 OR rest of rest control of circuit. control Remove circuit. Remove jumper wire jumper between wire between 3Ø 1 OR 3Ø SUPPLY 3Ø ONLY T1 T1 T2 T2 connect connect rmostat rmostat se terminals. se terminals. (Refer (Refer SUPPLY 3Ø ONLY L3 L2 L1 Figure 9). Figure Set 9). Set desired operating desired operating condition. condition. L3 L2 L1 H1 L1 H1 L1 H2 TO HEATING L2 H2 TO HEATING L2 H3 LOAD 5.0 AUTO 5.0 / AUTO OFF / FANONLY / OFF / FANONLY SWITH SWITH L3 H3 LOAD L3 REMOVE JUMPER FOR REMOVE JUMPER FOR OPTIONAL THERMOSTAT X1 OPTIONAL THERMOSTAT If ordered, If ordered, a facry a installed facry installed au / off au / only / off / only switch may switch be may be X1 1V HILIMITS 1V HILIMITS included included on. on The. only The only allows allows X2 T1 T2 X2 T1 T2 cycle in a cycle heat in mode a heat dictated mode by dictated controlling by controlling rmostat, rmostat, even even FD FD though though is operating is operating continuously. continuously. FD 3 1FD MM 6.0 NORMAL 6.0 NORMAL SEQUENE SEQUENE OF OPERATION OF OPERATION 3Ø ONLY 6.1 The 6.1 The must be properly must be mounted properly mounted wired in accordance wired in accordance 3Ø ONLY with with instructions instructions contained contained in this manual. in this manual. The The blade must blade must be Figure 9B Large abinet XGB Wiring Schematic be free free rotate rotate with no with obstruction no obstruction air inlet air or inlet outlet or outlet areas. areas. Figure 9B Large abinet XGB Wiring Schematic onnect ground wire ground connection located in 6.2 Energize 6.2 Energize at rated at supply rated voltage. supply voltage. supply connection housing; once again, making sure that onnect ground wire ground connection located wire is sufficiently long slide back in housing with trolley. 6.3 in Assuming 6.3 Assuming that that rmostat rmostat calls for calls heat, for i.e. heat, rmostat i.e. rmostat is supply connection housing; once again, making sure that See Figure. is set set a higher a higher that ambient: that ambient: wire is sufficiently long slide back in housing with trolley. See Figure. a) The main a) The contacr main contacr energize energize elements elements mor. mor. b) After b) After inlet air inlet air rises rises set point set of point of rmostat, rmostat, rmostat rmostat contacts contacts open open main main contacr TOP contacr deenergize deenergize elements elements mor. mor. Note: The Note: large The cabinet large cabinet XGB incorporates XGB incorporates a a delay delay in in both both ON ON cycles. cycles. This This is a is desirable a desirable as as it it allows allows come come before before operates operates (no cold (no cold blasts) blasts) cool cool down down cycle cycle (longer (longer life life for for contro control components components mor). mor). Delay Delay ON ON is is seconds seconds delay delay is is 1 1 seconds. seconds. LOOP 6.4 The 6.4 cycle The described cycle described above above repeat when repeat when ambient ambient falls below falls below rmostat rmostat set point. set point. SIDE Figure Supply onnection Due presence of hazardous materials, ensure that terminal housing Due covers, plugs, presence etc., of are hazardous secured materials, (but not overtightened) terminal before powering housing covers,. plugs, etc., are secured (but not ensure that overtightened) before powering.

8 IMPORTANT: THE PROPER MOTOR/FAN ROTATION, VIEWED FROM THE REAR OF THE HEATER IS OUNTER LOKWISE FOR THE SMALL ABINET UNITS AND LOKWISE FOR THE LARGE ABINET UNITS, AS INDIATED BY THE FAN ROTATION LABEL ON THE HEATER. INORRET ROTATION OF THE FAN WILL AUSE THE HEATER TO OVERHEAT AND YLE ON THE HIGH LIMITS. ONSULT FATORY IN ASE OF INORRET ROTATION. 7.0 MAINTENANE 7.1 The NORSEMAN explosionproof unit s are designed constructed operate in ugh industrial applications with a minimum of maintenance. However, some routine maintenance is recommended extend life of its components Always disconnect electrical supply before performing any maintenance. 7.2 Periodically inspect installation ensure that all connections, fittings, plugs, screws, covers, etc. are tight free of corrosion. 7.3 heck inside of cabinet around element fins for dust buildup debris, especially after seasonal shutdowns. lean with an air blast or vacuum. Ensure that nothing is restricting air flow in unit that blade is free rotate. 7.4 MOTOR The mor supplied with small cabinet units is approved for lass 1, Group D, lass II, Group E, F & G, T3B code. The mor supplied with large cabinet units is approved for lass I, Group & D, lass II, Group E, F & G, T3B code. All mors have internal rmal protection eliminate mor overheating. 7.5 FAN BLADE Visually inspect blade ensure it is free rotate accidental damage has not occurred. If bent or damaged, a facry balanced blade should be installed so that rated airflow is maintained. A damaged blade may not deliver required airflow over elements, resulting in cycling on high limit which can significantly reduce life of contacr high limit. 7.6 HEATER ABINET ycling of high limits should not be permitted. Should this occur, unit should be inspected determine cause of cycling condition should be corrected. 8.0 REPLAEMENT PARTS LIST The replacement parts list is included for reference only. Due delicate nature of explosionproof design, XGB unit s are not field serviceable. Should any problem arise, return unit facry for service by trained personnel. SMALL ABINET UNITS: Transformers High Limits Mor ontacr Fan Blade LARGE ABINET UNITS: Transformers High Limits Mors ontacr Fan Blade ontrol Fuse 8V units 2V units V units V units T2 Tode units T3A Tode units T3B Tode units & 7.5kW units 5 & 3.75kW units 8V units 2V units V units V units T2 Tode units T2D Tode units T3A Tode units T3B Tode units 8 V 3Ø units 2V 1Ø units V units 8V units 2V units V units V units T2 Tode units T3A Tode units T3B Tode units & 7.5kW units 5 & 3.75kW units EXA5023 EXA50 EXA5036 EXA FAF 873 MDL0.6 A I Thermal XTK rmostat kit may be purchased replace a broken rmostat. Refer installation instructions provided with kit. The XGB unit cabinet is stainless steel for superior corrosion resistance. We recommend cabinet be wiped down periodically using a mild detergent. 7.7 OVERHEAT PROTETION In event of failure, mor damage, excessive dust buildup or restricted inlet airflow, may rise, causing limit controls open, breaking power supply. are equipped with two aumatic reset high limit controls.

9 5918 Roper Road, Edmonn, Alberta, anada T6B 3E1 Phone: (780) Fax: (780) PLEASE ADHERE TO INSTRUTIONS PUBLISHED IN THIS MANUAL. Failure do so may be dangerous may void certain provisions of your warranty. For furr assistance, please call: 24 Hr. Hotline: (U.S.A. anada) Please have model serial numbers available before calling. WARRANTY: Under normal use ompany warrants purchaser that defects in material or workmanship be repaired or replaced without charge for a period of 18 months from date of shipment, or 12 months from start date of operation, whichever expires first. Any claim for warranty must be reported sales office where product was purchased for authorized repair or replacement within terms of this warranty. Subject State or Provincial law contrary, ompany 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 ompany cannot anticipate or control conditions of product usage refore accepts no responsibility for safe application suitability of its products when used alone or in combination with or products. Tests for safe application suitability of products are sole responsibility of user. This warranty be void if, in judgment of ompany, damage, failure or defect is result of: vibration, radiation, erosion, corrosion, process contamination, abnormal process conditions, pressures, unusual surges or pulsation, fouling, ordinary wear tear, lack of maintenance, incorrectly applied utilities such as voltage, air, gas, water, ors or any combination of aforementioned causes not specifically allowed for in design conditions or any act or omission by Purchaser, its agents, servants or independent contracrs which for greater certainty, but not so as limit generality of foregoing, includes physical, chemical or mechanical abuse, accident, improper installation of product, improper srage hling of product, improper application or misalignment of parts. No warranty applies paint finishes except for manufacturing defects apparent within days from date of installation. The ompany neir assumes nor authorizes any person assume for it any or obligation or liability in connection with product(s). The Purchaser agrees that all warranty work required after initial commissioning of product be provided only if ompany has been paid by Purchaser in full accordance with terms conditions of contract. The Purchaser agrees that ompany makes no warranty or guarantee, express, implied or statury, (INLUDING ANY WARRANTY OF MERHANTABILITY OR WARRANTY OF FITNESS FOR A PARTIULAR PURPOSE) written or oral, of Article or incidental labour, except as is expressed or contained in agreement herein. LIABILITY: Technical data contained in catalog or on website is subject change without notice. The ompany reserves right make dimensional or design changes as required. The Purchaser acknowledges ompany shall not be obligated modify those articles manufactured before formulation of changes in design or improvements of products by ompany. The ompany shall not be liable compensate or indemnify Purchaser, end user or any or party against any actions, claims, liabilities, injury, loss, loss of use, loss of business, damages, indirect or consequential damages, dems, penalties, fines, expenses (including legal expenses), costs, obligations causes of action of any kind arising wholly or partly from negligence or omission of user or misuse, incorrect application, unsafe application, incorrect srage hling, incorrect installation, lack of maintenance, improper maintenance or improper operation of products furnished by ompany. Edmonn Head Office (780) F Oakville (905) F Orillia (705) F Housn (281) F Denver (3) F