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DATE

SALES

REFERENCE

DIVISION

SECTION

Chromalox

®

(Supersedes PG422-1)

PF497-1

DRA

161-304812-001

NOVEMBER, 2002

4

RENEWAL PARTS IDENTIFICATION

Installation, Operation

and

(Supersedes PF-497)

© 2010 Chromalox, Inc.

Spe

cification

s

 – 

T

abl

e

 

1

GENERAL

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 

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 personal injury read “IMPORTANT
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.

El

e

ct

r

ical Data 

(

60 Hz

)

Dim

e

n

s

ion

s

 

(I

n.

)

Mo

de

l

V

olt

s

kW

P

ha

se

A

m

ps

1

/3 

P

h

B

T

U

H

e

ight

Wi

d

th

D

ep

th

DRA-07-83

208

7.5

1 and 3

36.3/21.0

25,590

34.25

27.5

25

DRA-07-23

240/208

7.5/5.6

1 and 3

31.5/18.3**

25,590

34.25

27.5

25

DRA-10-83

208

9.75

1 and 3

47.1/27.3

33,267

34.25

27.5

25

DRA-10-23

240/208

9.75/7.3

1 and 3

40.8/23.7**

33,267

34.25

27.5

25

DRA-15-83

208

15

3

41.8

51,180

34.25

27.5

25

DRA-15-23

240/208

15/11.2

3

36.3**

51,180

34.25

27.5

25

DRA-15-43

480

15

1 and 3

31.4/18.2

51,180

34.25

27.5

25

DRA-15-63

600

15

1 and 3

25.2/14.6

51,180

34.25

27.5

25

DRA-20-23

240/208

19.5/15

3

47.1**

66,534

34.25

27.5

26.5

DRA-20-43

480

20

1 and 3

42.0/24.4

68,240

34.25

27.5

26.5

DRA-20-63

600

20

1 and 3

33.5/19.4

68,240

34.25

27.5

26.5

DRA-30-43

480

30

3

36.3

102,360

34.25

27.5

26.5

DRA-30-63

600

30

3

20.1

102,360

34.25

27.5

26.5

* = 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.

Portable Industrial

Unit Blower Air Heater

Type DRA

Summary of Contents for PF497-1

Page 1: ...ther furnishings away from heater Electrical Data 60 Hz Dimensions In Model Volts kW Phase Amps 1 3 Ph BTU Height Width Depth DRA 07 83 208 7 5 1 and 3 36 3 21 0 25 590 34 25 27 5 25 DRA 07 23 240 208 7 5 5 6 1 and 3 31 5 18 3 25 590 34 25 27 5 25 DRA 10 83 208 9 75 1 and 3 47 1 27 3 33 267 34 25 27 5 25 DRA 10 23 240 208 9 75 7 3 1 and 3 40 8 23 7 33 267 34 25 27 5 25 DRA 15 83 208 15 3 41 8 51 1...

Page 2: ...and arcing or sparking parts inside Do not use it in areas where gasoline paint or flammable liquids are used or stored 14 Use this heater only as described in this manual Any other use not recommended by the manufacturer may cause fire electric shock or injury to persons 15 This heater is not intended for use with an extension cord 16 SAVE THESE INSTRUCTIONS ASSEMBLY INSTRUCTIONS The Chromalox DR...

Page 3: ...83 9 75 208 3 1 27 2 8 4 PLC 2508 4 PGL 15 30 PGN 15 50 DRA 10 23 7 3 208 1 1A 35 4 8 3 PLC 2508 3 PGN 6 50 DRA 10 23 7 3 208 3 1 20 4 10 4 PLC 2510 4 PGL 15 30 PGN 15 50 DRA 10 23 9 75 240 1 1A 40 8 6 3 PLC 2506 3 PGN 6 50 DRA 10 23 9 75 240 3 1 23 6 10 4 PLC 2510 4 PGN 15 50 DRA 15 83 15 208 3 1 41 8 6 4 PLC 2506 4 PGN 15 50 DRA 15 23 11 2 208 3 1 31 4 8 4 PLC 2508 4 PGN 15 50 DRA 15 23 15 240 3...

Page 4: ...b in the extreme clockwise position Turning the knob clockwise from the off position to the fan position will energize the fan only for use in summer cooling The adjustment knob controls power to the heater and fan when turned further in the clockwise direction with the highest tempera ture setting in the extreme clockwise position The temperature setting in the heater mode is approximately 40 F i...

Page 5: ...ug connector 3 Insert lead wires numbers 2 4 and 6 into box lug connector T2 Tighten screws on box lug connector 4 Examine wiring to make certain it is per above diagram T3 T2 T1 L3 L2 L1 11 1 3 Thermostat Cord by others Type SO or equal sized to meet nameplate requirements 9 10 7 8 12 Front of Heater 10 9 4 3 2 1 Blk Red or Grey Motor Blk Wht Cutout 6 4 Contactor 1 3 5 2 4 6 To T3 To T3 To T1 To ...

Page 6: ...15 304252 001 DRA 20 93 600 20 1 and 3 118 304793 006 193 302120 015 072 304551 008 315 304252 003 DRA 30 43 480 30 3 118 304793 011a 193 302120 012 072 304551 008 315 304252 001 118 304793 013b DRA 30 93 600 30 3 118 304793 012a 193 302120 015 072 304551 008 315 304252 003 118 304793 014b MAINTENANCE 30 kW units contain two sets of three elements six total The ratings of the three elements on the...

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