Chromalox Electric Heater PG417 3 User Manual

4
SK  
(Supersedes PG417-2)  
PG417-3  
161-048460-001  
OCTOBER, 2004  
Type SKR Infrared Comfort Heater  
Specifications – Table A  
Single Phase Power Circuit Amps  
Dimensions (In.)  
Model  
Watts  
120V  
208V  
240V  
275V  
6.6  
9.1  
480V  
A
B
SKR-2083  
SKR-3113  
SKR-4183  
SKR-5253  
SKR-6303  
SKR-7363  
0800  
1100  
1800  
2500  
3000  
3600  
6.7  
9.2  
3.9  
5.3  
8.7  
3.4  
4.6  
7.5  
243/  
305/  
465/  
613/  
733/  
853/  
8
227/  
291/  
451/  
597/  
721/  
841/  
8
8
8
8
8
12.00 10.50  
14.40 12.50  
17.30 15.00  
5.3  
6.3  
7.5  
8
8
10.90  
13.10  
4
4
4
4
GENERAL  
Chromalox Type SKR radiant heaters are designed for indoor  
installation only, and are to be ceiling mounted with such spacing  
between heaters to project heat radiation downwards to maintain  
comfort level within the radiation field.  
Before Installing  
1. Open carton and remove heater at the place of installation.  
Mounting clamps are in parts bag in carton.  
2. Check nameplate volt and watt rating against your power sup-  
ply voltage and heating requirements of your installation. This  
nameplate is located on one end of the heater.  
INSTALLATION  
MOUNTING (See Figure 1)  
Combustible Surfaces  
B
1. Layout heater locations to the desired heat affected work area.  
2. Minimum spacing to walls and ceiling are —  
A. One foot (12”) from top of heater to ceiling.  
3/8” Conduit  
B. Two feet (24”) from side or end of heater to adjacent walls.  
3. Minimum safe height above floor level for combustible mater-  
ial is 6 feet (72”). However, if ceiling height permits, more  
practical height is 8 feet or more to avoid high radiation inten-  
sities at head level when one stands directly below heater.  
12” Min.  
2-3/4”  
3-11/16”  
24”  
Min.  
24”  
Min.  
Protective Grille  
A
Maximum  
Radiation  
Within  
60° Included  
Angle  
72” Min.  
Figure 1  
© 2010 Chromalox, Inc.  
 
MAINTENANCE  
Before energizing this heater:  
1. Be sure all electrical connections are tightly made. Hold termi-  
nal with pliers when tightening screw.  
2. Be sure that all conductors are properly insulated.  
3. Be sure that all element assemblies have been properly  
replaced, and that secondary insulation bushings and support  
clips (where used) have not been omitted.  
WARNING: Hazard of Electric Shock. Disconnect all  
power before servicing heater.  
TO REMOVE HEATING ELEMENT  
1. Remove terminal cover screws and terminal cover.  
2. Disconnect heating element from electrical leads at both ends.  
3. Remove screws from porcelain terminal blocks.  
4. Remove element support clips and secondary insulating bush-  
ings (where used).  
CARE OF REFLECTORS  
Reflectors should be cleaned periodically. A mild soap and  
water solution or fine cleaning powder is best although more dras-  
tic means may be required if reflectors are badly soiled by chemi-  
cal 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, amy be used.  
Reflectors are replaceable and may be purchased from Chromalox.  
5. Lift out element.  
TO INSTALL ELEMENT  
Observe instructions for removing element and proceed in  
reverse fashion. Be sure to replace secondary insulating bushings  
and support clips (where used).  
WARNING: For your own safety —  
RENEWAL PARTS IDENTIFICATION  
PARTS COMMON TO ALL HEATERS  
26  
15  
10 Terminal Cover . . . . . . . . . . . . . . . .306-014405-001 (2)  
11 Terminal Cover Clip . . . . . . . . . . . .056-014401-002 (4)  
12 End Plates . . . . . . . . . . . . . . . . . . .220-014462-004†  
220-014462-002  
13 Terminal Screw . . . . . . . . . . . . . . .248-002793-001 (2)  
14 Saddle Clamp . . . . . . . . . . . . . . . . .238-026539-001 (2)  
24  
25  
20  
15  
19  
23  
MISCELLANEOUS HARDWARE  
18  
Figure 6  
15 #8 x 1” Lg. . . . . . . . . . . . . . . . . . . .248-075519-095 (6)  
16 #8 x 3/8” Lg. . . . . . . . . . . . . . . . . . .248-075519-080 (4)  
17 #8-32 x 3/8” Lg. . . . . . . . . . . . . . . . .248-075414-051 (4)  
Figure 7  
25  
MISCELLANEOUS PARTS  
TERMINAL BLOCK SET  
HANGER KIT  
168-016585-001 consists of the following:  
18 Terminal Block . . . . . . . . . . . . . . . .303-016367-001 (2)  
19 Speed Nuts . . . . . . . . . . . . . . . . . .272-048153-005 (4)  
20 Terminal Block . . . . . . . . . . . . . . . .303-014326-001 (2)  
21 Conduit . . . . . . . . . . . . . . . . . . . . .069-017920-001 (2)  
22 Cover Plate, Box . . . . . . . . . . . . . . .220-017915-001 (1)  
168-050202-001 (2) consists of the following:  
18 Terminal Block . . . . . . . . . . . . . . . .303-016367-001 (2)  
19 Speed Nuts . . . . . . . . . . . . . . . . . .272-048153-005 (4)  
20 Terminal Block . . . . . . . . . . . . . . . .303-014326-001 (2)  
15 Screws — #8 x 1” Lg. . . . . . . . . . .248-075519-095 (6)  
23 Canopy, with set screw . . . . . . . . . . . . . . . . (1)  
24 Hanger Bracket . . . . . . . . . . . . . . . . . . . . . . (1)  
25 Flat Locknut . . . . . . . . . . . . . . . . . . . . . . . . (2)  
26 Hex Nut (Spherical) . . . . . . . . . . . . . . . . . . . (1)  
† Indicates stamped end plate with voltage, wattage, etc.  
Note: Part numbers suffixed by a number in ( ) indicates the quantity of the same part number used.  
Figure 9  
Figure 8  
 
RENEWAL PARTS IDENTIFICATION  
1
2
7
8
Element Support  
Clip  
9
Heating  
Element  
Aluminum  
Housing  
3
4
5
6
Green  
Ground Wire  
Insulation  
Bushing  
Model  
Volts kW  
Reflector  
Grille  
Short Lead  
Long Lead  
SKR-2083 120 0.8 RTU-2083AV 152-017859-001 234-013411-011 134-017852-001 (0) 175-048142-041 175-048142-042 175-048142-224  
SKR-2083 208 0.8 RTU-2083AV 152-017859-001 234-013411-011 134-017852-001 (0) 175-048142-041 175-048142-042 175-048142-224  
SKR-2083 240 0.8 RTU-2083AV 152-017859-001 234-013411-011 134-017852-001 (0) 175-048142-041 175-048142-042 175-048142-224  
SKR-3113 120 1.1 RTU-3113AV 152-017859-002 234-013411-012 134-017852-002 (0) 175-048142-041 175-048142-043 175-048142-224  
SKR-3113 208 1.1 RTU-3113AV 152-017859-002 234-013411-012 134-017852-002 (0) 175-048142-041 175-048142-043 175-048142-224  
SKR-3113 240 1.1 RTU-3113AV 152-017859-002 234-013411-012 134-017852-002 (0) 175-048142-041 175-048142-043 175-048142-224  
SKR-4183 208 1.8 RTU-4183AV 152-017859-003 234-013411-014 134-017852-003 (0) 175-048142-041 175-048142-044 175-048142-224 059-013424-001 (1) 032-013454-001 (2)  
SKR-4183 240 1.8 RTU-4183AV 152-017859-003 234-013411-014 134-017852-003 (0) 175-048142-041 175-048142-044 175-048142-224 059-013424-001 (1) 032-013454-001 (2)  
SKR-4183 275 1.8 RTU-4183AV 152-017859-003 234-013411-014 134-017852-003 (0) 175-048142-041 175-048142-044 175-048142-224 059-013424-001 (1) 032-013454-001 (2)  
SKR-5253 208 2.5 RTU-5253AV 152-017859-004 234-013411-016 134-017852-004 (0) 175-048142-041 175-048142-045 175-048142-224 059-013424-001 (2) 032-013454-001 (4)  
SKR-5253 240 2.5 RTU-5253AV 152-017859-004 234-013411-016 134-017852-004 (0) 175-048142-041 175-048142-045 175-048142-224 059-013424-001 (2) 032-013454-001 (4)  
SKR-5253 275 2.5 RTU-5253AV 152-017859-004 234-013411-016 134-017852-004 (0) 175-048142-041 175-048142-045 175-048142-224 059-013424-001 (2) 032-013454-001 (4)  
SKR-5253 480 2.5 RTU-5253MI 152-017859-004 234-013411-016 134-017852-004 (0) 175-048143-022 175-048143-024 175-048142-224 059-013424-001 (2) 032-013454-001 (4)  
SKR-6303 208 3.0 RTU-6303AV 152-017859-005 234-013411-018 134-017852-005 (0) 175-048142-041 175-048142-046 175-048142-224 059-013424-001 (3) 032-013454-001 (6)  
SKR-6303 240 3.0 RTU-6303AV 152-017859-005 234-013411-018 134-017852-005 (0) 175-048142-041 175-048142-046 175-048142-224 059-013424-001 (3) 032-013454-001 (6)  
SKR-6303 275 3.0 RTU-6303AV 152-017859-005 234-013411-018 134-017852-005 (0) 175-048142-041 175-048142-046 175-048142-224 059-013424-001 (3) 032-013454-001 (6)  
SKR-6303 480 3.0 RTU-6303MI 152-017859-005 234-013411-018 134-017852-005 (0) 175-048143-022 175-048143-025 175-048142-224 059-013424-001 (3) 032-013454-001 (6)  
SKR-7363 208 3.6 RTU-7363AV 152-017859-006 234-013411-038 134-017852-003 (2) 175-048142-041 175-048142-047 175-048142-224 059-013424-001 (4) 032-013454-001 (8)  
SKR-7363 240 3.6 RTU-7363AV 152-017859-006 234-013411-038 134-017852-003 (2) 175-048142-041 175-048142-047 175-048142-224 059-013424-001 (4) 032-013454-001 (8)  
SKR-7363 275 3.6 RTU-7363AV 152-017859-006 234-013411-038 134-017852-003 (2) 175-048142-041 175-048142-047 175-048142-224 059-013424-001 (4) 032-013454-001 (8)  
SKR-7363 480 3.6 RTU-7363MI 152-017859-006 234-013411-038 134-017852-003 (2) 175-048143-022 175-048143-026 175-048142-224 059-013424-001 (4) 032-013454-001 (8)  
Note: Part numbers suffixed by a number in ( ) indicates the quantity of the same part number used.  
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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