Chromalox Electric Heater PG424 1 User Manual

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.  
 
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
 
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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