Chromalox PG417-3 Maintenance, Renewal Parts Identification, To Remove Heating Element

MAINTENANCE

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).

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 —

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.

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.

RENEWAL PARTS IDENTIFICATION

PARTS COMMON TO ALL HEATERS

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)

15

20

15

26

24

25

MISCELLANEOUS HARDWARE

15 #8 x 1” Lg. . . . . . . . . . . . . . . . . . . .248-075519-095 (6) 16 #8 x 3/8” Lg. . . . . . . . . . . . . . . . . . .248-075519-080 (4)

Figure 6

18

23

17 #8-32 x 3/8” Lg. . . . . . . . . . . . . . . . .248-075414-051 (4)

MISCELLANEOUS PARTS

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)

19

TERMINAL BLOCK SET

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) 15 Screws — #8 x 1” Lg. . . . . . . . . . .248-075519-095 (6)

HANGER KIT

168-050202-001 (2) consists of the following:

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