Cold Weather Catalog - Chromalox Precision Heat and Control

ComfortKUHHorizontal Blower Heater (cont’d.)Dimensions (Inches)F(4) Welded fasteners 2for threaded rodJmounting tooverhead steel.IWall Mounted Universal Bracket(4) 13/32" dia. wallmounting holes. 1Stop for limiting rotation.RSP6"Min.to WallKGHSwivel bolt permits heater to berotated to face desired direction.Four bolts are provided for field attachmentof swivel bracket towelded fasteners on top of unit.QWallLineAMin.to WallMinimum mounting heightis 7 feet from floor.TEBCD6"Ceiling Mounted(1) 11/16" dia.swivelmountinghole.VUNMWWall Mounted HeatersDimensions (In.)HeaterP Q R S TWallBracket PCNWt.Stock (Lbs.)KUH-20, 25 2 32 9-1/2 8-3/8 22-1/4 BUH-02A 304506 S 7KUH-30, 35, 40, 45 5-1/2 28-11/16 5 3-1/2 33-1/4 BUH-03A 304514 S 10Ceiling Mounted HeatersNotes —1. Wall mounting fasteners to be supplied by customer.2. Threaded rod to be supplied by customer.Dimensions (In.)Heater A B C D E F G H I J K M N U V WCeilingBracket PCN StockWt.(Lbs.)KUH-20, 25 24 20-1/8 11-1/2 20-1/2 16-3/4 16 8-1/4 6 6-1/4 12 10-1/16 8 6-1/4 6 7-1/4 16 BUH-05A 304477 S 3KUH-30, 35, 40, 45 24 20-1/8 17 26 16-3/4 16 8-1/4 6 11-3/4 12 10-1/16 13-3/4 9-5/16 6 7-1/4 21 BUH-06A 304485 S 3AOptional Control Accessories & Remote ThermostatsFan Only Operation KitsNote — A fan only operation (optional) is available bymeans of a built-in switch or by external control.12Summer Fan SwitchThermostat KitSummer Fan(2 - 15 kW) (20 - 45 kW)Wt.Switch Model PCN Model PCN Stock (Lbs.)Internal 208- 277V ISFS-02 2 305007 ISFS-02 305007 S 0.25External 1 with Relay ESFS-40 305015 ESFS-40A 305058 S 0.5(24V control)External 1 with Relay ESFS-41 305023 ESFS-41A 305066 S 0.5(120V control)External 1 with Relay ESFS-42 305031 ESFS-42A 305074 S 0.5(240V control)External 1 with Relay ESFS-47 305040 — — S 0.5(277V control)1. Kit includes wall plate (discard plate if switch is to be installed on heater).2. Do not use for 480V rated heaters. 480V heaters require fan relay optionwith proper control voltage relay coil.Thermostat KitsModel PCN StockWt.(Lbs.)KUH-TK3 (SPST) 40º to 90ºF 302519 S 0.25KUH TK4 (DPST) 40º to 90ºF 302527 S 0.25Power Disconnect Kits3 Pole, 600VRatingMounting LimitationsModel Rating PCN StockWt.(Lbs.)KDS-1 40 Amp* 304434 NS 0.5KDS-2 80 Amp 304442 NS 0.5KDS-3 100 Amp 304450 NS 1* KDS-1 Rating for 480V or less is 50 Amp.Hazardous Atmosphere — Unit heaters should not be used inpotentially explosive atmospheres. Corrosive Atmosphere —The finish is not intended for direct salt spray exposure in marineapplications or the highly corrosive atmospheres of greenhouses,swimming pools, chemical storage bins, etc. Mounting Height— Do not install unit heaters above recommended maximummounting height. Obstructions must not block unit heater air inletor discharge.