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Chromalox
Installation, Operation
RENEWAL PARTS IDENTIFICATION
Specifications – Table 1
Model
SDRA-30-43
SDRA-30-93
SDRA-48-43
SDRA-48-93
SDRA-60-43
SDRA-60-93
IMPORTANT:
SAVE THESE INSTRUCTIONS
RISK OF FIRE. Do not use as a residential or house-
hold heater
Hazard of Fire or Discoloration of Temperature
Sensitive Fabrics. Do not use as a residential or
household heater. Keep combustible material and
© 2010 Chromalox, Inc.
and
Portable Industrial Unit
Blower Air Heater
Types SDRA and SDRA-RG
Electrical Data (60 Hz)
Volts
kW
Phase
480
30
3
600
30
3
480
48
3
600
48
3
480
60
3
600
60
3
®
DIVISION
SALES
REFERENCE
DATE
Amps
BTU
37.2
102,360
30.0
102,360
58.9
163,776
47.3
163,776
73.3
204,720
58.9
204,720
GENERAL
such fabrics away from heater. Do not operate heater
where flammable vapors, gases or liquids are present.
Heaters in the heat mode should not be operated in
room temperatures above 130˚F. Fan motor is not
designed to operate in ambients below -10˚F.
To avoid personal injury read "IMPORTANT INSTRUC-
TIONS" on page 2 before installation or operation of
heater.
Keep electrical cords and combustible materials, such
as drapes and other furnishings, away from heater.
4
SDRA
SECTION
(Supersedes PF499-1)
161-304812-003
AUGUST, 2010
Dimensions (In)
Height
Width
Depth
38.5
26
38.5
26
38.5
30-1/4
38.5
30-1/4
38.5
30-1/4
38.5
30-1/4
PF499-2
44
44
44
44
44
44
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Table of Contents
Related Manuals for Chromalox SDRA
Summary of Contents for Chromalox SDRA
- Page 1 Hazard of Fire or Discoloration of Temperature Sensitive Fabrics. Do not use as a residential or household heater. Keep combustible material and © 2010 Chromalox, Inc. ® Portable Industrial Unit Blower Air Heater Types SDRA and SDRA-RG Electrical Data (60 Hz) Volts Phase Amps 37.2 30.0 58.9...
-
Page 2: Important Instructions
O. Exceeding the maximum static load will result in the tripping of the overtemperature control. The per- formance range of the SDRA units is as shown in table B. The motor and fan have variable pitch pulleys for changing the air flow and the ΔT. - Page 3 AD-16 WIRING (cont’d.) SDRA heaters can be easily field if modified to vary the fan speed. There may be some circumstances where the use of short lengths of duct may not create sufficient pressure drop to achieve the desired tem- perature rise.
- Page 4 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.
-
Page 5: Wiring Diagrams
1/4" Conduit Heater Terminal Box One end attached to screw in terminal box and other end attached to screw on sub panel. Front of Heater SDRA 30kW, 480V, 3PH Cutout Front Heater SDRA 48kW, 480V, 3PH Cutout Front Heater... -
Page 6: Parts Location
Element Assembly 30kW Front of Heater View Showing Element Placement and Routing of Thermostat Capillary Element Assembly 60kW Fan Pulley Back of Heater Motor Pulley Side View Detail Showing Pulley and Belt Installation Side View shown with Heater and Control Terminal Box Covers Removed PARTS LOCATION Front of Heater... -
Page 7: Maintenance
Element (11) Model No. Volts kW Phase Part No. SDRA-30-43 118-304793-011(3) 118-304793-013(3) 193-121843-232 072-304551-008 SDRA-30-93 118-304793-012(3) 118-304793-014(3) 193-121843-233 072-304551-008 SDRA-48-43 118-304793-011(3) 118-304793-013(6) 193-121843-232 072-304551-008(2) 315-304252-001 129-025643-001... - Page 8 Limited Warranty: Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx. 2150 N. RULON WHITE BLVD., OGDEN, UT 84404 Phone: 1-800-368-2493 www.chromalox.com...