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