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Wall
W
M
N
A
U
V
One 11/16" mounting hole
for swivel mounting
for ceiling
W = Minimum Distance to
Wall for Full 180˚ Swivel
B
C
Dimensions (In.)
Bracket
Model Wt. Use
No. A B C M N U V W (Lbs.) With
WUH-04A 16 13-1/8 8-7/8 6 4-7/16 4 4-1/2 10-1/2 3
LUH-02
04, 05
WUH-05 20-1/2 17-1/4 11-1/2 8 6-1/4 6 7-1/4 16 5-1/2
LUH-07
10, 12, 15
WUH-05 24 20-1/8 11-1/2 8 6-1/4 6 7-1/4 16 5-1/2 LUH-20, 25
WUH-06 24 20-1/8 17 13-3/4 10 6 7-1/4 21 11
LUH-30
35, 40, 45
3
G
X
I
S
I
D
E
W
A
L
L
BACK WALL
Threaded
Mounting
Holes
L
Figure 3 Wall and Ceiling Clearance (Table 2)
INSTALLATION
Figure 4
Optional Ceiling Swivel Mounting Bracket
Chromalox
®
Note:
Dimensions - (In.)
Bracket Bracket
Model Weight Use
Number P Q R S T (Lbs.) With
WUH-01A 1-3/4 21-1/2 6-3/4 5-1/2 14-15/16 4-1/2
LUH-02
04, 05
WUH-02 2 28-7/16 9-1/2 8-3/8 22-1/4 12-1/4
LUH-07
10, 12, 15
WUH-02 2 28-7/16 9-1/2 8-3/8 22-1/4 12-1/4 LUH-20, 25
WUH-03 5-1/2 28-11/16 5 3-1/2 33-1/4 24-1/4
LUH-30,
35, 40, 45
Figure 5
Optional Wall Swivel Mounting Bracket
Figure 6
Heater Back View
1/2"
Knockouts
Knockout Sizes
LUH-02 - LUH-05 3/4” (1)
LUH-07 - LUH-15 1” (1)
LUH-20 - LUH-25 3/4”, 1”, 1-1/4”(1)
LUH-30 - LUH-45 3/4”, 1”, 1-1/4”(1)
Figure 2 Rod Spacing
Rod
Dimensions (In.)
Unit Thread
IG L X
Type
2 - 5kW 5/16 - 18 4-1/2 5-1/2 2-3/4 2-1/4
7-1/2 - 15kW 3/8 - 16 6-1/4 8-1/4 4-1/8 3-1/8
20 - 25kW 3/8 - 16 6-1/4 8-1/4 4-1/8 3-1/8
30 - 45kW 3/8 - 16 11-3/4 8-1/4 4-1/8 5-7/8
Table 4 — Rod Thread Type and Spacing Dimensions (In.) for
Horizontal Discharge