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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.
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.
To Install Element
Observe instructions for removing element and proceed in
reverse order. Be sure to replace secondary insulation bushings.
Care of Reflectors
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.
3
MAINTENANCE
RENEWAL PARTS IDENTIFICATION
Number 1 2 6 7 15
of kW Per Element Reflector Insulation Element Bushing
Model Volts Elements Element Model No. Sheet Bushing Support Clip Retaining Clip
U-RP-410
208 or 275
3
URPT-444V
234-013411-082 (3) 032-013454-001 (48) 059-014304-002 (12) 059-017175-001 (12)
240 or 480 URPT-444
4.4
U-RP-420
208 or 275
6
URPT-444V
234-013411-082 (6) 032-013454-001 (96) 059-014304-002 (24) 059-017175-001 (24)
240 or 480 URPT-444
U-RP-510
208 or 275
3
URPT-560V
234-013411-083 (3) 032-013454-001 (60) 059-014304-002 (15) 059-017175-001 (15)
240 or 480 URPT-560
6.0
U-RP-520
208 or 275
6
URPT-560V
234-013411-083 (6) 032-013454-001 (120) 059-014304-002 (30) 059-017175-001 (30)
240 or 480 URPT-560
NOTE: Part numbers suffixed by a number in ( ) indicates the quantity of the same part number used