SECTION 4: N
ATIONAL
S
TANDARDS
AND
A
PPLICABLE
C
ODES
9 of 143
SECTION 4: NATIONAL STANDARDS AND
APPLICABLE CODES
4.1 Fuel Codes
The type of f
u
el appearing on the nameplate
m
u
st
b
e the type of f
u
el
u
sed. Installation m
u
st
comply
w
ith national and local codes and
req
u
irements of the local f
u
el company.
United States: Refer to NFPA 54/ANSI Z223.1 -
latest re
v
ision, National F
u
el Gas Code for
nat
u
ral gas and LPG
u
nits. Refer to NFPA 31-
latest re
v
ision, Standard for the Installation of
Oil-B
u
rning Eq
u
ipment for oil
u
nits.
Canada: Refer to CSA B149.1 - latest re
v
ision,
Nat
u
ral Gas and Propane Installation Code for
nat
u
ral gas and LPG
u
nits. Refer to CSA B139 -
latest re
v
ision, Installation Code for Oil-B
u
rning
Eq
u
ipment for oil
u
nits.
4.2 Installation Codes
Installations m
u
st
b
e made in accordance
w
ith
NFPA 90A - latest re
v
ision, Standard for the
Installation of Air-Conditioning and Ventilation
Systems.
4.3 Aircraft Han
g
ars
Installation in aircraft hangars m
u
st
b
e in
accordance
w
ith the follo
w
ing codes:
United States: Refer to Standard for Aircraft
Hangars, NFPA 409 - latest re
v
ision.
Canada: Refer to Standard CSA B149.1 - latest
re
v
ision, Nat
u
ral Gas and Propane Installation
Code for nat
u
ral gas and LPG
u
nits. Refer to
CSA B139 - latest re
v
ision, Installation Code for
Oil-B
u
rning Eq
u
ipment for oil
u
nits.
• In aircraft storage and ser
v
icing areas, air
t
u
rno
v
er
u
nits shall
b
e installed at least 10' (3 m)
a
b
o
v
e the
u
pper s
u
rface of
w
ings or of engine
enclos
u
res of the highest aircraft
w
hich may
b
e
ho
u
sed in the hangar. The meas
u
rement shall
b
e
made from the
w
ing of the engine enclos
u
re
(
w
hiche
v
er is higher from the floor) to the
b
ottom
of the air t
u
rno
v
er
u
nit.
• In shops, offices and other sections of aircraft
hangars comm
u
nicating
w
ith aircraft storage or
ser
v
icing areas, air t
u
rno
v
er
u
nits shall
b
e
installed not less than 8' (2.4 m) a
b
o
v
e the floor.
• S
u
spended or ele
v
ated air t
u
rno
v
er
u
nits shall
b
e
so located in all spaces of aircraft hangars that
they shall not
b
e s
ub
ject to inj
u
ry
b
y aircraft,
cranes, mo
v
a
b
le scaffolding or other o
b
jects.
Pro
v
isions shall
b
e made to ass
u
re accessi
b
ility
to s
u
spended air t
u
rno
v
er
u
nits for rec
u
rrent
maintenance p
u
rposes.
• Heating,
v
entilation and air conditioning plants
employing recirc
u
lation of air
w
ithin aircraft
storage and ser
v
icing areas shall ha
v
e ret
u
rn air
openings not less than 10' (3 m) a
b
o
v
e the floor.
S
u
pply air openings shall not
b
e installed in the
floor and shall
b
e at least 6" (152 mm) from the
floor meas
u
red to the
b
ottom of the opening.
• Personnel sho
u
ld
b
e f
u
lly instr
u
cted that in the
e
v
ent of a serio
u
s gasoline or similar flamma
b
le
liq
u
id spill on the hangar floor, the fans sho
u
ld
b
e
sh
u
t off.
