8
UHE
-
F / EIH
-
F I&O Manual
IM100205
RD: APR 2019
RL: 02C
VENT END CLEARANCE: Clearances from the vent pipe are determined by local or national
installation codes, but must not be less than 6 inches (15 cm). For
‘
unvented
’
installation, a
minimum distance of 24 inches (61 cm) is required from the end of heater to a combustible
surface.
In locations used for the storage of combustible materials: Signs
must be posted
specifying the
maximum permissible stacking height
to
maintain the required clearances from the heater to the combustibles.
The signs must be posted either adjacent to the IR heating system thermostats or in the ab-
sence of such thermostats, in a conspicuous place.
For your convenience a
“
peel and stick
”
sign
is provided with this heater. Use a permanent
marker to record the required dimensions on
the sign.
To calculate the value
‘
H
’:
(
H
=
T
-
C
)
•
Measure the on site distance between bottom
of the heater and the floor =
‘
T
’
inches (cm).
•
Subtract the clearance below the heater
‘
C
’
from
‘
T
’
(see Table 1 for the value
‘
C
’
that corre-
sponds to the model you are installing).
•
Enter this value
‘
H
’
on the sign.
Refer to the information for the heater model
being installed in Figure 1 and Table 1 to get
the values for dimensions
‘
S
’, ‘
F
’
and
‘
B
’.
Post this sign as instructed above.
2.
INSTALLATION IN COMMERCIAL AIRCRAFT HANGARS
Low intensity radiant tube heaters are suitable for use in aircraft hangars when installed in ac-
cordance with the latest edition of the Standard for
Aircraft Hangars
, ANSI/NFPA No 409 in the
USA, or the Canadian
Natural Gas and Propane Installation Code
, B149.1.
A. A minimum clearance of 10 ft (3 m) above either the highest fuel storage compartment or
the highest engine enclosure of the highest aircraft which may occupy the hangar. The
clearance to the bottom of the heater shall be measured from the upper surface of either
the fuel storage compartment or the engine enclosure, whichever is higher from the floor.
B.
A minimum clearance of 8 ft (2.4 m) must be maintained from the bottom of the heater to
the floor in other sections of the aircraft hangar, such as offices and shops, which communi-
cate with areas for servicing or storage. Refer to Section 1 for proper mounting clearances
to combustibles.
C.
Heaters must be located so as to be protected from damage by aircraft and other objects,
such as cranes and movable scaffolding.
D.
Heaters must be located so as to be accessible for servicing and adjustment.
WARNING
1.
LABOR REQUIRMENTS
Two persons are required to safely install this equipment. Each insulated reflector assembly
weighs approximately 50 pounds (23 kg). Wear gloves and other required safety protection.