Chromalox SDRA-30-43 Installation And Operation Instructions Manual Download | Manualshive

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PF499-4

161-304812-003

March 2019

Installation and Operation

Instructions

SDRA & SDRA-RG

Portable Industrial

Unit Blower Air Heater

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Summary of Contents for SDRA-30-43

Page 1: ...1 PF499 4 161 304812 003 March 2019 Installation and Operation Instructions SDRA SDRA RG Portable Industrial Unit Blower Air Heater ...

Page 2: ...ding papers clothes and curtains at least 3 feet 0 9m from the front of the heater and keep them away from the sides and rear 3 Extreme caution is necessary when any heater is used by or near children or handicapped individuals and when ever the heater is left operating and unattended 4 Always disconnect heater when not in use 5 Do not operate any heater with a damaged cable or plug or after the h...

Page 3: ...eet of duct length for each 180 bend Table A kW Fan RPM CFM T No Load Max Static Load T at Max Static Load 30 1800 2200 42 F 38 H2 O 86 F 48 1800 2200 68 F 38 H2 O 144 F 60 1800 2200 88 F 38 H2 O 170 F Wiring ELECTRIC SHOCK HAZARD Disconnect all power before installing or servicing heater Failure to do so could result in personal injury or property damage Heater must be effectively grounded in acc...

Page 4: ...in feet of 20 duct Friction Loss AD 16 Damper 10 60 40 20 0 2000 1600 1400 1800 2200 2400 Fan RPM Equivalent Duct Length FT 30 50 70 80 90 Damper Full Closed Damper Full Open The SDRA Dragon includes 2 thermostats The thermostat on the air inlet end of the unit is for the minimum air temperature desired The thermostat on the discharge end of the heater is for the maximum air temperature desired Th...

Page 5: ... wrench and a medium size phillips screwdriver 2 Remove the lower belt cover by removing the 5 sheet metal screws 3 Remove the rear grille by removing the 4 1 4 bolts and nuts 4 Remove the belt cover inside the blower by removing the 4 sheet metal screws 5 Loosen the 4 bolts 2 on each side See Fig 1 3 8 Bolts Figure 1 6 Loosen the 2 motor tension lock nuts and the fan belt tension adjusting bolts ...

Page 6: ... threaded half of the pulley The pulley is now in position for adjustment See Table 1 for the number of turns out Tip Leave allen wrench in set screw and use free hand to fold fan blade Table B Fan RPM No of turns from full closed Fan RPM No of turns from full closed Motor Pulley Fan Pulley Motor Pulley Fan Pulley 1500 3 1 1 2 1950 1 1 2 3 1600 2 1 2 1 1 2 2000 1 1 2 3 1 2 1650 2 1 1 2 2100 1 1 2 ...

Page 7: ...Wires through 1 4 Conduit One end attached to screw in terminal box and other end attached to screw on sub panel Motor Relay Control Enclosure 50 Amp Fusing 50 Amp Fusing L1 L3 L2 Wht Transformer Contactor Contactor Blk Toggle Switch Amber Pilot Light Green Pilot Light Run these Wires Through 1 2 Conduit Motor P4 P5 P6 Inlet Thermostat Outlet Thermostat Cutout 14 1 17 15 13 12 Heater Terminal Box ...

Page 8: ...ent and Routing of Thermostat Capillary and Mounting of Bulb VIEW SHOWING ELEMENT PLACEMENT AND ROUTING OF THERMOSTAT CAPILLARY AND MOUNTING OF BULB 19 12 11 11 11 12 12 12 11 11 11 12 12 Front of Heater View Showing Element Placement and Routing of Thermostat Capillary and Mounting of Bulb Front View Shown with Grille Removed All Sizes 30 1 4 Twist Wire 20 1 2 38 37 44 38 1 2 16 84 36 45 80 81 20...

Page 9: ... 047468 004 SDRA 60 43 480 60 3 118 304793 011 6 118 304793 013 6 193 121843 232 072 304551 008 2 315 303786 001 129 025643 001 2 128 026510 006 6 303 047468 004 SDRA 60 93 600 60 3 118 304793 012 6 118 304793 014 6 193 121843 233 072 304551 008 2 315 304252 003 129 025643 001 2 128 026510 006 6 303 047468 004 Wired directly to contactor All units contain two sets of elements The ratings of the el...

Page 10: ...e Chromalox limited warranty applicable to this product at http www chromalox com customer service policies termsofsale aspx 2016 Chromalox Inc All rights reserved Chromalox 103 Gamma Drive Pittsburgh PA 15238 412 967 3800 www chromalox com ...

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