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SAFETY CONSIDERATIONS
FURNACE
RELIABILITY
HAZARD
Improper
installation
or misapplication
of famace
may re=
quire
excessive
servicing
or cause
premature
component
failure
Application
of this ffmaace
should
be indoors
with
special
attention
given to vent sizing and material,
gas input rate, air
temperature
rise, unit leveling,
and unit sizing.
FIRE,
EXPLOSION,
ELE(TRICAL
SHOCK
AND
(ARBON
MONOXIDE
POISONING
HAZARD
Failure to fbllow this warning
could result
in electrical
shock,
fire, personal
irljury, or death.
Improper
installation,
adjustment,
alteration,
service,
mainteo
nance,
or use can cause
carbon
monoxide
poisoning_
exploo
sion,
fire,
electrical
shock,
or other
conditions
which
may
cause personal
injury or property
damage.
Consult
a qualified
installer,
service
agency,
local
gas supplier,
or your distlibuo
tot or branch
fbr infbm_ation
or assistance.
The qualified
installer
or agency
must
use
only
fhctoryoauthorized
and
listed kits or accessories
when modif}-ing
this product.
Installing
and servicing
heating
equipment
can be hazardous
due to
gas
and
electrical
components.
Only
trained
and
qualified
personnel
should
instMl,
repair,
or service
heating
equipment.
Untrained
personnel
can perfom_
basic
maintenance
functions
such as cleaning
and replacing
air filters. All other operations
must
be
performed
by trained
service
personnel.
When
working
on
heating
equipment,
observe
precautions
in literature,
on tags, and
on labels
attached
to or shipped
with
unit
and
other
safety
precautions
that may apply.
These
instructions
cover
the minimmn
requirements
and confom_
to existing
national
standards
and safety codes. In some instances,
these
instructions
exceed
certain
local
codes
and
ordinances,
especially
those that may not have kept up with changing
resideno
tim constraction
practices.
We require
these
instractions
as a
minimum
fbr a saf_ installation.
Wear
safety
glasses
and work
gloves
Have
a fire extinguisher
available
daring
start-up
and adjusm_ent
procedures
and service
calls.
u
Ng_
_
0
(UT
HAZARD
Failure
to fPllow this caution
may result
in personal
injury
Sheet metal parts may have sharp edges or bun's
Use care and
wear
appropriate
protective
clothing
and gloves
when
hano
dling parts.
Recognize
safkty in%rmation.
This is the safety-alert
symbol
z_ "
When
you
see this symbol
on the unit
and
in instructions
or
manuals,
be alert to the potential
for personal
injury.
Understand
these signal words DANGER,
WARNING,
and (AU-
TION
These words
are used with the safktyoalert
symbol.
DAN-
GER identifies
the most serious hazards
which will result
in severe
personal
ir{jury
or death.
WARNING
signifies
hazards
which
could
result
in personal
injury
or death.
CAUTION
is used to
identify
unsafe
practices
which
may
result
in minor
personal
ir{jury or product
and property
damage
NOTE is used to highlight
suggestions
which
will result
in enhanced
installation,
reliability,
or operation.
The 58MCA
Multipoise
(ondensing
GasoFired
Furnaces
are CSA
(fPm_erly
AGA and (GA)
design-certified
for natural
and propane
gases
(see ffN'nace rating
plate)
and
fPr installation
in alcoves,
attics,
basements,
closets,
utility rooms,
crawlspaces,
and garages.
The furnace
is factory-shipped
for use with
natural
gas
A CSA
listed gas conversion
kit is required
to convert
furnace
for use with
propane
gas
See Fig. 3 for required
clearances
to combustibles
Maintain
a 1=in. clearance
from combustible
materials
to supply air
ductwork
fbra distance
of 36 inches horizontally
from the fhmace.
See NFPA
90B or local code fbr further
requirements.
These
fmnaces
SHALL
NOT
be installed
directly
on carpeting,
tile, or any other combustible
material
other than wood flooring.
In
downflow
installations,
factow
accessow
floor
base
MUST
be
used when
installed
on confbustible
materials
and wood
flooring.
Special
base
is not required
when
this
[k/rnace
is installed
on
manufi_cmrer's
(Toil Assembly
Part No. CD5 or CK5, or when (Toil
Box Part No. KCAKC
is used.
The 58MCA
040 through
120 size units
are CSA (fbrmerly
AGA
and
CGA)
design=certified
fbr
use
in
manufactured
(mobile)
homes when Pactory accessory
conversion
kit is used. The 140 size
unit is NOT
design-certified
for use
in manui:acmred
(mobile)
homes.
These
fm'naces
are suitable
for installation
in a structure
built on site or a manufhctured
building
completed
at final site. The
design
of this
fhmace
line
is NOT
CSA
designocertified
for
installation
in recreation
vehicles
or outdoors.
---5 This
fhmace
is designed
for
continuous
return-air
naininmm
temperature
of 60°F db or intermittent
operation
down
to 55°F dh
such
as when
used with
a night
sethack
them_ostat.
Return-air
temperature
must
not exceed
80°F
db. Failure
to follow
these
return-air
limits may affkct reliability
of heat exchangers,
motors,
and contIols.
(See Fig. 4.)
These
furnaces
are
shipped
with
the drain
and
pressure
robes
connected
fbr LIPFLOW
applications.
Minor
modifications
are
required
when used in DOVvL\'FLOW,
HORIZONTAL
RIGHT,
or
HORIZONTAL
LEFT
(supply-air
discharge
direction)
applica-
tions as shown
in Fig.
1. See details
in Applications
section.
--> Install
this fi/mace
only in a location
and position
as specified
in
LO(ATION
and INSTALLATION
sections
of these
instructions.
--> Combustion
products
must be discharged
outdoors.
Connect
this
fm'nace
to an
approved
vent
system
only,
as specified
in the
Combustion
Air and Vent piping
sections
of these
instructions.
--> Never
test for gas leaks with an open
flame. Use a commercially
available
soap solution
made specifically
for detection
of leaks to
check
all connections
as specified
in the GAS PIPING
section
of
these
instructions.
---5 Always
install tl_e fhmace
to operate
within
the furnace's
intended
rise range with a duct system
which
has an external
static pressure
within
the allowable
range
as specified
in the SET
TEMPERA-
TURE
RISE section
of these instructions.
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