Installation, Operation
4
U-RP
and
(Supersedes PG424-1)
PG424-2
RENEWAL PARTS IDENTIFICATION
Please familiarize yourself with these instructions before
attempting to install or connect this radiant heater
161-058090-001
JULY, 2006
Type U-RP Radiant Heater
Specifications – Table A
Dimensions (In.)
B
C
D
4-5/8”
Overall Heated Overall
Length Length Height
Model
Volts
kW
A
U-RP-410V
U-RP-410
208 or 275 13.2
240 or 480 13.2
11-5/8 57-1/2
11-5/8 57-1/2
48
48
12
12
A
U-RP-420V
U-RP-420
208 or 275 26.4
240 or 480 26.4
23-5/8 57-1/2
23-5/8 57-1/2
48
48
24
24
11-3/8”
U-RP-510V
U-RP-510
208 or 275 18
240 or 480 18
11-5/8 75-1/2
11-5/8 75-1/2
66
66
12
12
D
U-RP-520V
U-RP-520
208 or 275 36
240 or 480 36
23-5/8 75-1/2
23-5/8 75-1/2
66
66
24
24
Before installing
C
1. Open carton and remove heater at the place of installation.
B
2. Check nameplate volt and watt rating against your power supply
voltage and heating requirements of your installation. This name-
plate is located on one end of the heater.
4-1/2”
8-1/8”
1-5/8”
4-7/8”
MOUNTING
1. Framing: Fabricate structural support using angle iron or contin-
uous slot metal framing (manufactured by others). Dimension
framing per Table B and Figure 1 for your size panel.
2. Assembly: Position U-RP radiant panel on fabricated structural
support and attach using 1/2” diameter bolts of suitable length
(see Fig. 2).
1-1/4” Conduit
Opening
Mtg. Bracket (Typ.)
Radiant Panel
1-5/32” x 9/16” Slot (Typ.)
A
D
I
Insulation
G
H
F
2-5/16”
Terminal Box Cover
Figure 1 – Aluminum Extruded Section
Mounting – Table A
Structural
Support
Bolt
Dimensions (In.)
No. of Mounting
Model
Brackets
F
G
H
I
Figure 2 – Typical installation
U-RP-410V
U-RP-410
2
44-3/4
—
—
8-5/8
3. Insulation: Where unusually high work temperatures are encoun-
tered, it may be desirable to insulate backs of heaters with high
temperature fibrous insulation. A suggested method of accom-
plishing this is indicated in Figure 2.
U-RP-420V
U-RP-420
2
3
3
44-3/4
—
—
20-5/8
8-5/8
U-RP-510V
U-RP-510
62-3/4 32-1/4
62-3/4 32-1/4
30-1/2
30-1/2
U-RP-520V
U-RP-520
20-5/8
© 2010 Chromalox, Inc.
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MAINTENANCE
To Install Element
Observe instructions for removing element and proceed in
reverse order. Be sure to replace secondary insulation bushings.
Care of Reflectors
ELECTRIC SHOCK HAZARD. Disconnect all power
before installing or servicing heater. Failure to do
so could result in personal injury or property dam-
age. Heater must be installed or serviced by a
qualified person in accordance with the National
Electrical Code, NFPA 70.
Reflectors should be cleaned periodically. A mild soap and
water solution or fine cleaning powder is best although more
drastic means may be required if reflectors are badly soiled by
chemical or other deposits. The reflector is aluminum. DO NOT
use alkali cleaners since alkalies will dull reflector. Mild non-
alkaline cleaners, such as used for scouring kitchen sinks, may be
used. Reflectors are replaceable and may be purchased from
Chromalox.
To Remove Heating Element
1. Remove terminal cover screws 13 and terminal cover 3 at ter-
minal end of heater.
2. Disconnect heating element from electrical leads at both ends.
3. Remove screws 12 and nuts 10 from porcelain terminal blocks
9 and 11 .
4. Remove element support clips 7 and 15 and secondary insula-
tion bushings.
5. Lift element out of heater.
RENEWAL PARTS IDENTIFICATION
Number
of
Elements Element
1
2
6
7
15
Bushing
Retaining Clip
kW Per
Element
Model No.
Reflector
Sheet
Insulation
Bushing
Element
Support Clip
Model
Volts
208 or 275
240 or 480
URPT-444V
URPT-444
U-RP-410
3
234-013411-082 (3) 032-013454-001 (48) 059-014304-002 (12) 059-017175-001 (12)
4.4
208 or 275
240 or 480
URPT-444V
URPT-444
U-RP-420
U-RP-510
6
234-013411-082 (6) 032-013454-001 (96) 059-014304-002 (24) 059-017175-001 (24)
234-013411-083 (3) 032-013454-001 (60) 059-014304-002 (15) 059-017175-001 (15)
208 or 275
240 or 480
URPT-560V
URPT-560
3
6.0
208 or 275
240 or 480
URPT-560V
URPT-560
U-RP-520
6
234-013411-083 (6) 032-013454-001 (120) 059-014304-002 (30) 059-017175-001 (30)
NOTE: Part numbers suffixed by a number in ( ) indicates the quantity of the same part number used
3
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RENEWAL PARTS IDENTIFICATION (cont’d.)
Quantity Used Per Heater
Description
Part Number
U-RP-410
U-RP-510
U-RP-420
U-RP-520
PARTS COMMON TO ALL HEATERS
3
4
5
Terminal Cover
Terminal Cover Clip
End Plates
(Terminal End)
306-014405-001
056-014401-002
220-016382-001
220-017278-001
3
3
3
3
3
3
3
3
6
6
6
6
6
6
6
6
8
Terminal Screw
248-046044-002
6
6
12
12
MISCELLANEOUS HARDWARE AND PARTS
9
Terminal Block
303-014317-001
200-049592-029
303-014316-001
248-075512-390
248-075519-080
248-075512-053
238-026539-001
248-075512-260
328-075528-053
200-075520-070
248-075512-419
345-115337-222
328-024417-023
248-075409-314
248-075512-089
3
3
3
3
6
12
6
4
4
4
4
6
6
6
1
3
3
3
3
6
12
6
4
4
4
4
9
9
9
1
6
6
6
6
6
6
10 Hexnut #8-32
11 Terminal Block
12 Screw #8-32 x 2-1/2” Long
13 Screw #8 x 3/8” Long
14 Screw #8-32 x 3/8” Long
16 Saddle Clamp
17 Screw 1/4-20 x 3/8” Long
18 Washer 1/4”
6
6
12
24
12
4
4
4
4
9
9
12
1
12
24
12
4
4
4
19 Hexnut 1/4-20
20 Screw 10-32 x 2-3/4” Long
21 Cap Screw 3/8-16 x 1/2” Long
22 Lockwasher
23 Screw 1/4 x 1-1/4” Long
24 Screw 10-32 x 3/8” Long
25 Base Plates
4
18
18
12
1
—
1
015-051109-001
015-043319-001
1
—
1
—
—
1
26 Terminal Box Covers
27 Connecting Channels
306-014374-001
306-014374-002
050-051107-001
050-051107-002
1
1
—
1
—
2
—
1
—
3
—
—
2
—
3
—
28 Terminal Box End Plate
29 Bus Bar Support
30 Bus Bar Support
31 Bus Bar
306-014448-001
219-0143800001
219-014381-001
031-051116-001
2
2
2
2
2
2
2
2
2
—
—
2 (1ø)
3 (3ø)
6
2
2
2
—
—
2 (1ø)
3 (3ø)
6
2 (1ø)
3 (3ø)
—
—
3
2 (1ø)
3 (3ø)
—
—
3
031-051116-002
032-075008-003
32 Bushing (with Locknut)
Limited Warranty:
Please refer to the Chromalox limited warranty applicable to this product at
2150 N. RULON WHITE BLVD., OGDEN, UT 84404
Phone: 1-800-368-2493
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