Roberts Gorden NDUSTRIA NHE Series, Инструкция по установке, эксплуатации и обслуживанию

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SECTION 7: O
PTIONAL
H
EATER
A
CCESSORIES
31
SECTION 7: OPTIONAL HEATER ACCESSORIES
7.1 U-Tube Configuration
Heaters (except NHE-40) are approved for optional
U-Tube configurations.
The U-Tube may be installed in either a standard hor
-
izontal position, a 45° position or in an opposite 45°
position as shown
on Page 6, Figure 6 through Fig -
ure 8 . When using a U-Tube configuration, the follow -
ing additional rules must be adhered to:
• A minimum of 10' (3 m) on NHE-60/80 and a mini -
mum of 15' (4.5 m) on NHE-100/125/150/175 is
required between the burner and the U-Tube.
• The correct turbulator/swirler ( See Page 21, Fig -
ure 6.5 and Figure 6.6, Page 22 ) must be installed
in the last standard section of tube.
• The burner must never be operated in a tilted posi -
tion.
• The heater must be properly supported at all loca -
tions. See Page 33, Figure 26 .
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.