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RENEWAL PARTS IDENTIFICATION
Portable Industrial
Unit Blower Air Heater
Specifications – Table 1
Model
DRA-07-83
DRA-07-23
DRA-10-83
DRA-10-23
DRA-15-83
DRA-15-23
DRA-15-43
DRA-15-63
DRA-20-23
DRA-20-43
DRA-20-63
DRA-30-43
DRA-30-63
* = Includes motor amps
** = Ratings shown are for 240V, 208V amperage is 86% of 240V value.
Models shown as 1 and 3 phase are factory wired for 3 phase operation and can be field wired for single phase.
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.
Chromalox
Installation, Operation
and
Type DRA
Electrical Data (60 Hz)
Volts
kW
208
7.5
240/208
7.5/5.6
208
9.75
240/208
9.75/7.3
208
15
240/208
15/11.2
480
15
600
15
240/208
19.5/15
480
20
600
20
480
30
600
30
®
Phase
Amps* 1/3 Ph
BTU
1 and 3
36.3/21.0
25,590
1 and 3
31.5/18.3**
25,590
1 and 3
47.1/27.3
33,267
1 and 3
40.8/23.7**
33,267
3
41.8
51,180
3
36.3**
51,180
1 and 3
31.4/18.2
51,180
1 and 3
25.2/14.6
51,180
3
47.1**
66,534
1 and 3
42.0/24.4
68,240
1 and 3
33.5/19.4
68,240
3
36.3
102,360
3
20.1
102,360
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 80°F. Fan
motor is not designed to operate in ambients below
-40°F.
To
avoid
INSTRUCTIONS" 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
DIVISION
SECTION
SALES
(Supersedes PF-497)
(Supersedes PG422-1)
REFERENCE
NOVEMBER, 2002
DATE
Dimensions (In.)
Height
Width
34.25
27.5
34.25
27.5
34.25
27.5
34.25
27.5
34.25
27.5
34.25
27.5
34.25
27.5
34.25
27.5
34.25
27.5
34.25
27.5
34.25
27.5
34.25
27.5
34.25
27.5
personal
injury
read
DRA
PF497-1
161-304812-001
Depth
25
25
25
25
25
25
25
25
26.5
26.5
26.5
26.5
26.5
"IMPORTANT
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Summary of Contents for Chromalox PF497-1
- Page 1 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. ® Electrical Data (60 Hz) Volts Phase...
-
Page 2: Important Instructions
Never locate heater where it may fall into a bathtub or other water container. The Chromalox DRA is shipped fully assembled. The handle is assembled in the lower position (dotted line Fig. 1). To position handle in the upright position, remove bolts securing the handle to... - Page 3 Non Locking .750”-1.250” Non Locking The above plugs are designed to be used with specific ranges of cable diameters. If not used with Chromalox Cable Kits, check cable man- ufacturers cable diameter to be sure plug fits selected cable. WIRING...
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Page 4: Operation
*Includes 90 degree fitting and 25 foot of cord, reducers and locknut 2. Strip off outer jacket of cord and insulation from lead wires. The tabulation below provides the strip dimensions for the var- ious Chromalox portable heaters. See the nameplate on the heater for the Model number. Model No. -
Page 5: Wiring Diagrams
Diag. 1 – FACTORY WIRED 3 PHASE Cord by others. Type "SO" or equal sized to meet nameplate requirements Thermostat Cutout Diag. 2 – FACTORY WIRED 3 PHASE Cord by others. Type "SO" or equal sized to meet nameplate requirements To T3 Contactor To T3... -
Page 6: Maintenance
The ends of the elements are color coded, the lower wattage are color coded yellow and the higher wattage are color coded blue. a. Lower wattage elements, discharge end, yellow coded b. Higher wattage elements, fan end, blue coded Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx. MAINTENANCE Replace or repair damaged cords or plugs immediately.