Chromalox PG421-1 Manuel D’Utilisation
PG421-1
U-RAD
161-058006-001
APRIL, 2005
4
and
Installation, Operation
RENEWAL PARTSIDENTIFICATION
(Supersedes PG421)
Type U-RAD-LT Electric Radiant Heaters
© 2010 Chromalox, Inc.
Housing
Mounting
Clamp
Assembly
Clamp
Assembly
Terminal Box
Cover
Terminal Box
Element
Polished Aluminum Reflector
Figure 1 — Heater Parts and Dimensions
Before Installing
1. Open carton and remove heater at the place of installation.
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.
nameplate is located on one end of the heater.
The system designer is responsible for the safety
of this equipment and should install adequate
back-up controls and safety devices with their
electric heating equipment. Where the conse-
quences of failure could result in personal injury or
property damage, back-up controls are essential.
of this equipment and should install adequate
back-up controls and safety devices with their
electric heating equipment. Where the conse-
quences of failure could result in personal injury or
property damage, back-up controls are essential.
Double Element U-RAD-LT
Single Element U-RAD-LT
A
B
Overall
Heated
Model
Volts
Watts
Length (In.)
Length (In.)
Single U-Shaped Element
U-RAD-2LT
120 or 240
0
800
13
5
/
16
8
7
/
16
U-RAD-2VLT
208 or 275
U-RAD-3LT
120 or 240
1100
16
7
/
16
11
5
/
16
U-RAD-3VLT
208 or 275
U-RAD-4VLT
208 or 275
1800
24
3
/
8
19
3
/
8
U-RAD-4LT
240 or 480
U-RAD-5VLT
208 or 275
2500
31
13
/
16
26
13
/
16
U-RAD-5LT
240 or 480
U-RAD-6VLT
208 or 275
3000
37
13
/
16
32
13
/
16
U-RAD-6LT
240 or 480
U-RAD-7VLT
208 or 275
3600
43
15
/
16
38
15
/
16
U-RAD-7LT
240 or 480
Two U-Shaped Elements
U-RAD-22LT
120 or 240
1600
26
1
/
8
16
5
/
8
U-RAD-22VLT
208 or 275
U-RAD-32LT
120 or 240
1900
29
1
/
4
19
3
/
4
U-RAD-32VLT
208 or 275
U-RAD-33LT
120 or 240
2200
32
3
/
8
22
7
/
8
U-RAD-33VLT
208 or 275
U-RAD-42VLT
208 or 275
2600
37
1
/
8
27
11
/
16
U-RAD-42LT
240
U-RAD-43VLT
208 or 275
2900
40
1
/
4
30
13
/
16
U-RAD-43LT
480
U-RAD-44VLT
208 or 275
3600
48
1
/
8
38
3
/
4
U-RAD-44LT
240 or 480
U-RAD-52VLT
208 or 275
3300
44
5
/
8
35
1
/
8
U-RAD-52LT
240
U-RAD-53VLT
208 or 275
3600
47
3
/
4
38
1
/
4
U-RAD-53LT
240
U-RAD-54VLT
208 or 275
4300
55
5
/
8
46
3
/
16
U-RAD-54LT
240 or 480
U-RAD-55VLT
208 or 275
5000
63
1
/
8
53
5
/
8
U-RAD-55LT
240 or 480
U-RAD-62VLT
208 or 275
3800
50
9
/
16
41
1
/
8
U-RAD-62LT
240
U-RAD-63VLT
208 or 275
4100
53
11
/
16
44
1
/
4
U-RAD-63LT
240
U-RAD-64VLT
208 or 275
4800
61
9
/
16
52
3
/
16
U-RAD-64LT
240 or 480
U-RAD-65VLT
208 or 275
5500
69
1
/
16
59
5
/
8
U-RAD-65LT
240 or 480
U-RAD-66VLT
208 or 275
6000
75
65
5
/
8
U-RAD-66LT
240 or 480
U-RAD-72VLT
208 or 275
4400
56
11
/
16
47
1
/
4
U-RAD-72LT
240
U-RAD-73VLT
208 or 275
4700
59
13
/
16
50
3
/
8
U-RAD-73LT
240
U-RAD-74VLT
208 or 275
5400
67
11
/
16
58
5
/
16
U-RAD-74LT
240 or 480
U-RAD-75VLT
208 or 275
6100
75
3
/
16
65
11
/
16
U-RAD-75LT
240 or 480
U-RAD-76VLT
208 or 275
6600
81
7
/
16
72
1
/
16
U-RAD-76LT
240 or 480
U-RAD-77VLT
208 or 275
7200
87
1
/
4
77
7
/
8
U-RAD-77LT
240 or 480
Specifications Table —
A
B
3
11
/
16
”
4
1
/
4
” Dia.
(Typ.)
B
A
3
/
4
” Pipe Tap on
Back Side of
Heater (Typ.)
Heater (Typ.)
The Safety Alert Symbol is used to indicate a risk of per-
sonal injury.
sonal injury.
Please familiarize yourself with these instructions before
attempting to install or operate this Radiant Heater.
attempting to install or operate this Radiant Heater.
!