ComfortUB High Capacity Horizontal Blower <strong>Heat</strong>erElectrical (60 Hz)MotorAir DeliveryOrderingkW Volts Phase Amps Volts Phase HP RPM CFM FPMTemp.Rise(°F)Horiz.Throw(Ft.)Mtg.Height(Ft.) Model Stock PCNWt.(Lbs.)35 600 3 33.7 115 1 1/3 1,550 2,500 1,040 47 54 14 UB-3502 NS 333286 21035 600 3 33.7 230 1 1/3 1,550 2,500 1,040 47 54 14 UB-3502 NS 333294 21035 600 3 33.7 230 1 1/3 1,550 2,500 1,040 47 54 14 UB-3502 NS 333307 21040 480 1 83.3 115 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333315 21040 480 1 83.3 115 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333323 21040 480 1 83.3 230 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333331 21040 480 1 83.3 230 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333340 21040 480 3 48.2 115 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333358 21040 480 3 48.2 115 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333366 21040 480 3 48.2 230 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333374 21040 480 3 48.2 230 1 1/3 1,500 2,500 1,040 53 54 15 UB-4002 NS 333382 21040 480 3 48.2 460 3 1/3 1,725 2,800 1,165 48 54 15 UB-4002 NS 333390 21040 480 3 48.2 460 3 1/3 1,725 2,800 1,165 48 54 15 UB-4002 S 333403 21040 550 3 42 115 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333411 21040 550 3 42 115 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333420 21040 550 3 42 230 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333438 21040 550 3 42 230 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333446 21040 575 3 40.2 115 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333454 21040 575 3 40.2 115 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333462 21040 575 3 40.2 230 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333470 21040 575 3 40.2 230 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333489 21040 600 3 38.5 115 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333497 21040 600 3 38.5 115 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333500 21040 600 3 38.5 230 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333518 21040 600 3 38.5 230 1 1/3 1,550 2,500 1,040 53 54 15 UB-4002 NS 333526 21045 480 1 93.8 230 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333534 21045 480 1 93.8 230 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333542 21045 480 3 54.2 115 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333550 21045 480 3 54.2 115 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333569 21045 480 3 54.2 230 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333577 21045 480 3 54.2 230 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333585 21045 480 3 54.2 460 3 1/3 1,725 2,800 1,165 54 54 17 UB-4502 NS 333593 21045 480 3 54.2 460 3 1/3 1,725 2,800 1,165 54 54 17 UB-4502 NS 333606 21045 550 3 47.3 115 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333614 21045 550 3 47.3 115 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333622 21045 550 3 47.3 230 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333630 21045 550 3 47.3 230 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333649 21045 575 3 45.2 115 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333657 21045 575 3 45.2 115 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333665 21045 575 3 45.2 230 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333673 21045 575 3 45.2 230 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333681 21045 600 3 43.4 115 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333690 21045 600 3 43.4 115 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333702 21045 600 3 43.4 230 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333710 21045 600 3 43.4 230 1 1/3 1,550 2,500 1,040 60 54 17 UB-4502 NS 333729 21050 480 3 60.2 115 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333737 21050 480 3 60.2 115 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333745 21050 480 3 60.2 230 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333753 21050 480 3 60.2 230 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333761 21050 480 3 60.2 460 3 1/3 1,725 2,800 1,165 60 54 17 UB-5002 NS 333770 21050 480 3 60.2 460 3 1/3 1,725 2,800 1,165 60 54 17 UB-5002 S 333788 21050 550 3 52.5 115 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333796 21050 550 3 52.5 115 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333809 21050 550 3 52.5 230 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333817 21050 550 3 52.5 230 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333825 21050 575 3 50.3 115 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333833 21050 575 3 50.3 115 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333841 21050 575 3 50.3 230 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333850 21050 575 3 50.3 230 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333868 21050 600 3 48.2 115 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333876 21050 600 3 48.2 115 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333884 21050 600 3 48.2 230 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333892 21050 600 3 48.2 230 1 1/3 1,550 2,500 1,040 67 54 17 UB-5002 NS 333905 210Stock Status: S = stock AS = assembly stock NS = non-stockTo Order—Specify model, PCN, kW, volts, phase <strong>and</strong> quantity.FORCED AIR1. Not UL Listed.Other Note — Up to 600V available, contact your Local <strong>Chromalox</strong> Sales office.19
ComfortVUHVertical DeliveryBlower <strong>Heat</strong>er• 5 - 50 kW• 17,060 - 170,600 Btuh• 208, 240, 277 <strong>and</strong> 480 Volt• 1 or 3 Phase• Diffusers OptionalDescriptionVersatile, high performance VUH heaterscan be used for complete primary, supplementaryor dual system heating applicationsin all types of commercial <strong>and</strong> industrialapplications. They direct warm air downward,<strong>and</strong> are particularly applicable in high bayindustrial buildings where columns, toweringmachinery or warehouse stock wouldobstruct good horizontal movement of air.Four types of optional diffuser designs can beused to produce a variety of air distributionpatterns.Dimensions (Inches)6-5/8 (VUH-05 to 10)8-3/8 (VUH-15 to 25)15-1/4 (VUH-30 to 50)(4) 1/16 Dia. Mtg. Holes14 (VUH-05 to 25)18-7/8 (VUH-30 to 50)26 (VUH-05 to 25)34 (VUH-30 to 50)Fuse Door7-1/4 (VUH-05 to 25)11 (VUH-30 to 50)3-1/4 (VUH-05 to 10)4-5/8 (VUH-15 to 25)10-5/8 (VUH-30 to 50)10-5/8 (VUH-05 to 10)12-5/8 (VUH-15 to 25)20-3/4 (VUH-30 to 50)13-1/2 (VUH-05 to 25)19 (VUH-30 to 50)Applications• Shipping <strong>and</strong> Receiving Areas• Power Generating Stations• Aircraft Hangers• Warehouses• Garages• High Bay AreasFeaturesSub-divided Circuits with Individual FuseProtection — St<strong>and</strong>ard on all heaters with atotal current draw of 48 Amps or greater <strong>and</strong>are electrically balanced. The fuse compartmentis conveniently located for easy access.Integral 120V <strong>Control</strong> Transformer — St<strong>and</strong>ardon 480V models, eliminates the need foran external control source (24V optional).Heavy Duty Magnetic Contactors — No externalcontactors are needed; integral,3-pole, magnetic contactors are st<strong>and</strong>ard onall models.Thermal Cutouts open the control circuit <strong>and</strong>disconnect power to the heating elements ifoverheating occurs. Automatic Reset allowsthe control circuit to reclose <strong>and</strong> restore powerwhen the temperature returns to normal levels.Suspension Mount with Hangers or Brackets— VUH heaters have top angle bracketswith four (4) mounting holes for suspensionmounting of heaters from ceiling with hangers,or rigid angle brackets. The junction box/control compartment is located on the tophousing for overhead wiring.Optional FeaturesDiffusers — Radial, Cone, Louver <strong>and</strong> Anemostatdiffusers are available to direct heatcoverage.Fan Only RelayAdvantages• Clean <strong>and</strong> Reliable• Easy Maintenance• Built-in <strong>Control</strong>s• Attractive Appearance20