Chromalox PG424-2 Electric Heater User Manual


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(Supersedes PG424-1)
PG424-2
U-RP
161-058090-001
JULY, 2006
4
and
Installation, Operation
RENEWAL PARTS IDENTIFICATION
Type U-RP Radiant Heater
© 2010 Chromalox, Inc.
Specifications – Table A
Dimensions (In.)
BCD
Overall Heated Overall
Model Volts kW A Length Length Height
U-RP-410V 208 or 275 13.2 11-5/8 57-1/2 48 12
U-RP-410 240 or 480 13.2 11-5/8 57-1/2 48 12
U-RP-420V 208 or 275 26.4 23-5/8 57-1/2 48 24
U-RP-420 240 or 480 26.4 23-5/8 57-1/2 48 24
U-RP-510V 208 or 275 18 11-5/8 75-1/2 66 12
U-RP-510 240 or 480 18 11-5/8 75-1/2 66 12
U-RP-520V 208 or 275 36 23-5/8 75-1/2 66 24
U-RP-520 240 or 480 36 23-5/8 75-1/2 66 24
Please familiarize yourself with these instructions before
attempting to install or connect this radiant heater
4-5/8”
11-3/8”
D
8-1/8”
1-5/8”
4-7/8”
4-1/2”
C
B
A
Before installing
1. Open carton and remove heater at the place of installation.
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.
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).
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.
D
I
H
G
F
Terminal Box Cover
2-5/16”
A
1-1/4” Conduit
Opening
1-5/32” x 9/16” Slot (Typ.)
Mtg. Bracket (Typ.)
Figure 1 – Aluminum Extruded Section
Mounting – Table A
Dimensions (In.)
No. of Mounting
Model Brackets F G H I
U-RP-410V
2 44-3/4 — — 8-5/8
U-RP-410
U-RP-420V
2 44-3/4 — — 20-5/8
U-RP-420
U-RP-510V
3 62-3/4 32-1/4 30-1/2 8-5/8
U-RP-510
U-RP-520V
3 62-3/4 32-1/4 30-1/2 20-5/8
U-RP-520
Figure 2 – Typical installation
Insulation
Structural
Support
Bolt
Radiant Panel
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