Roberts Gorden COMPLETE HED Series, Installation, Operation & Service Manual

Page: 33 / 72

SECTION 7: O
PTIONAL
H
EATER
A
CCESSORIES
27
SECTION 7: OPTIONAL HEATER ACCESSORIES
7.1 U-Tube Confi g uration
Heaters (except HED-40) are appro v ed for optional
U-T u be config u rations.
The U-T u be may be installed in either a standard hor-
izontal position, a 45° position or in an opposite 45°
position as sho
w n on Page 7, Figure 7 through Figure
9 . When u sing a U-T u be config u ration, the follo w ing
additional r u les m u st be adhered to:
• A minim u m of 10' (3 m) on HED-60/80 and a mini-
m u m of 15' (4.5 m) on HED-100/125/150/175 is
req u ired bet w een the b u rner and the U-T u be.
• The correct t u rb u lator ( See Page 23, Figure 6.5 )
m u st be installed in the last standard section of
t u be.
• The b u rner m u st ne v er be operated in a tilted posi-
tion.
• The heater m u st be properly s u pported at all loca-
tions. See Page 29, Figure 21 .
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.