Trane GRCA - General Safety and Installation Requirements; Hazardous Procedures and Fuel Safety

the
panel door
upwards
on
the
tracks, and push
up
into
the
top
lip, swing
and
lower the
panel
in place
until it
engages
with the bottom
panel.
Turn the
screwhead
on
each
latch
clockwise.
The
screw
must turn
freely
one
quarter
turn before
resistance is
felt in
order for
the
lock to
engage. If
latch does
not
hold,
turn
screw
counter-clock-
wise
several turns
and
repeat the
above
procedure.
RIGGING
Rig unit
using
either
belt or cable
slings.
Use
spreader
bars
to protect
the top
of the
unit
when it is
lifted. See
fig-
ure 1.
On
units
with
a
total
length of
less
than
104"
(2642 mm),
excluding
evaporative
cooler,
two
holes are
provided in
the base
rail on each
side
of the
unit. Slide
pipes
beneath
the unit
through
these
holes and attach
rigging to
pipes for
lifting
the unit.
On
units with a
total
length of a
104"
(2642 mm)
or greater,
excluding
evaporative
cooler,
lifting lugs
attached
to the
base
rail are
provided.
Attach
rigging to
lugs
for lifting
the
unit. For
distance
between
lifting lugs and
total
unit
lengths, refer
to
original
Submittal
Sheets
supplied
specified
for the
unit. Also see
Center of
Gravity and
Weights
Sections
in this
manual.
COMBUSTION
AIR
CONSIDERATIONS
The presence
of
chlorine
vapors or
other
corrosive
vapors
in the
combustion
air
supply
for gas-fired
heating
equip-
ment
presents
a
potential
corrosive
hazard.
Chlorine
will,
when exposed
to
flame,
precipitate
from the
compound
(usually freon
or degreaser
vapors) and
go
into solution
with any
condensation
that is
present in
the heat
exchang-
er or
associated parts.
The
result is
hydrochloric
acid
which
will readily
attack all
metals,
including 300
grade
stainless
steel. Care
should be
taken
to
separate these
vapors
from the
combustion
process.
This may
be
done
by wise
location of the
unit
with regard
to
exhausters or
prevailing wind
direction.
LOCATION
Before placing
roofto p
unit in its
permanent
location,
make
certain
that the
roof is
capable
of
carrying
the additional
load
of this
equipment.
Check the
unit
weight given
at the
end of
this manual.
Refer to
Figure 2
for
required
clearances
to
combustible
material.
Figure 1
USE
SPRE A D
T O
PREVE
N
TI
T O U
N I
USE SPRE A
DE R
BAR
T O
PRE V E N T
DAMAGE
T O
UN IT
MOUNTING/
LOCATIONS
These
units
are
suitable for
installation
on
combustible
flooring.
Single,
double
and
triple duct
furnace
only
models
have
base
rails which
can be
mounted
either
on
solid
planking
or
steel channels.
All other
units
installed
on
field
furnished
supports
must use
the
recommended
method
shown in
Mounting
on
Field
Furnished
Supports
or
equivalent.
Roof curb
kits for
rooftop
units are
shipped
unassembled.
Included
with the
roof
curb kit are
insulated
or
uninsulated
curb
rails,
bolts and
screws
needed
for
assembly,
sealant,
a
roll of
self-adhering
rubber
gasketing, and
installation
instructions.
Roof
insulation,
cant
stripping,
flashing,
roof
felts,
caulking,
and
nails
must be
furnished by
the
installer.
See
separate
roof curb
specifications.
II .
GENERAL
REQUIREMENTS
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