BH-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
24
SECTION 7: OPTIONAL HEATER ACCESSORIES
7.1 U-Tube Confi
g
uration
Heaters (except BH-40) are approved for optional
U-tube configurations.
The U-tube may be installed in either a standard
horizontal position, a 45° position or in an opposite
45° position as shown
on Page 6, Figure 7
through
Page 7, Figure 9
. When using a U-tube configuration,
the following additional rules must be adhered to:
• A minimum of 10' (3 m) on BH-60/80 and a
minimum of 15' (4.5 m) on BH-100/115/125/140/
150/175/200 is required between the burner and
the U-tube.
• The correct turbulator (
See Page 20, Step 6.4
)
must be installed in the last standard section of
the tube.
• The burner must never be operated in a tilted
position.
• The heater must be properly supported at all
locations.
See Page 26, Figure 19
.
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.
