Related Manuals for Chromalox SDRA-30-43
Summary of Contents for Chromalox SDRA-30-43
- Page 1 Installation and Operation Instructions SDRA & SDRA-RG Portable Industrial Unit Blower Air Heater PF499-4 161-304812-003 March 2019...
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Page 2: Important Instructions
IMPORTANT: SAVE THESE INSTRUCTIONS Table 1 - Specifications Electrical Data (60 Hz) Dimensions (In.) Model Volts Phase Amps* 1/3 PH Height Width Depth SDRA-30-43 37.2 102,360 38.5 SDRA-30-93 30.0 102,360 38.5 SDRA-48-43 58.9 163,776 38.5 30-1/4 SDRA-48-93 47.3 163,776 38.5... -
Page 3: Setup And Operation
O static load has been reached. speed can be easily adjusted from 1500 to 2300rpm, (SDRA The temperature rise is based on using Chromalox 20” diam- heaters are shipped from the factory with the fan speed set at eter FX-20 flexible duct. The performance curves were deter- 1800 rpm). - Page 4 SDRA heaters can be easily field if modified to vary the fan Temperature Rise vs Duct Length speed. There may be some circumstances where the use of 30 kW short lengths of duct may not create sufficient pressure drop 1500 to achieve the desired temperature rise.
- Page 5 Accessories Adjustable Damper and Duct Adapter Front of Heater Rear of Heater Duct Adapter Adjustable 1/4-20 Wing nut Provided with Damper AD-16 Fan Speed Adjustments Changing the Pitch Diameter of the Sheaves: 6. Loosen the (2) motor tension lock nuts and the fan belt tension adjusting bolts.
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Page 6: Wiring Diagrams
7. Loosen the set screw on the fan pulley or motor pulley. Table B Fig. 3 shows the construction of the fan pulley, the motor No. of turns from No. of turns from full pulley is the same construction. full closed closed Motor Motor... - Page 7 Motor Run these Wires Through 1/2" Amber Pilot Light Conduit Green Pilot Light Cutout Inlet Thermostat Outlet Thermostat Toggle Switch Motor Relay Transformer Front 30 Amp Fusing Contactor Heater 45 Amp Fusing Contactor Run these Wires through 1/4" Conduit Heater Terminal Box Control Enclosure One end attached to screw in terminal box...
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Page 8: Parts Location
Parts Location Front of Heater View Showing Element Placement and Routing of Thermostat Capillary and Mounting of Bulb Element Assembly 30kW Element Assembly 48kW (20-1/2) Front of Heater Twist Wire View Showing Element Placement (30-1/4) and Routing of Thermostat Capillary and Mounting of Bulb Front View Shown with Grille Removed Element Assembly 60kW... -
Page 9: Maintenance
Volts kW Ph. Part No. Part No. Part No. Part No. (21) Part No. Part No. Part No. (84) Part No. SDRA-30-43 480 118-304793-011(3) 118-304793-013(3) 193-121843-232 072-304551-008 315-303786-001 N/A* SDRA-30-93 600 118-304793-012(3) 118-304793-014(3) 193-121843-233 072-304551-008 315-304252-003 N/A* SDRA-48-43 480 118-304793-011(3) 118-304793-013(6) 193-121843-232 072-304551-008(2) 315-303786-001 129-025643-001... - Page 10 Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx. Chromalox 103 Gamma Drive Pittsburgh, PA 15238 (412) 967-3800 www.chromalox.com © 2016 Chromalox, Inc. All rights reserved.