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Check Safhty Controls
45
Check Prima_
Limit Control
45
Check Pressure Switch
45
CHECKLIST ......................................
45
SAFETY CONSIDERATIONS
FURNACE
RELIABILITY
HAZARD
Improper
installation
or misapplication
of fml_ace
may re=
quire
excessive
servicing
o1" cause
premature
component
failm'e
Application
of this fm'nace
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,
ELECTRICAL
SHOCK
AND
CARBON
MONOXIDE
POISONING
HAZARD
Failure to follow this warning
could result
in electrical
shock,
firQ personal
ir!inry, or death,
Improper
installation,
adjustment,
alteration,
service,
mainte°
nance,
or use can cause
carbon
monoxide
poisoning,
explo=
sion,
fire,
electrical
shock,
or other
conditions
which
may
cause personal
Jr!ire'y.,- o r property
damage.
Consult
a qualified
installer,
smwice agency,
local
gas supplier,
or your distribu-
tor or branch
fbr information
or assistance.
The qualified
installer
or agency
must
use
only
[itctory=authorized
and
listed kits or accessories
when modi_)ing
this product.
Installing
and servicing
heating
equipment
can be hazardous
due to
gas
and
electrical
components.
Only
trained
and
qualified
persomiel
should
instMl,
repair,
or service
heating
equipment.
Untrained
personnel
can perform
basic
maintenance
fimctions
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 minimum
requirements
and confoml
to existing
national
standards
and safkty codes
In some instances,
these
instructions
exceed
certain
local
codes
and
ordinances,
especially
those that may not have kept up with changing
resider>
tial
construction
practices.
We require
these
instrnctions
as a
minimum
ibr a saf_ installation
Wear
safety
glasses
and work
gloves.
Have
a fire extinguisher
available
during
start=up
and adjustment
procedures
and service
calls,
CUT
HAZARD
Failure
to %tlow
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
ban=
dling parts.
Recognize
safety information.
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 safkty=alert
symbol.
DAN-
GER identifies
the most serious hazards
which will result
in severe
personal
injury
or death.
WARNING
signifies
hazards
which
could
result
in personal
injury
or death.
CAUTION
is used
to
identify
unsafe
practices
which
ma?
result
in minor
personal
injury or product
and property
damage
NOTE
is used to highlight
suggestions
which
will result
in enhanced
installation,
reliability,
or operation.
The 58MSA
Muhipoise
Condensing
Gas-Fired
Furnaces
are CSA
(fbm_erly
AGA and (GA)
design-certified
for natural
and propane
gases
(see ftmmce
rating
plate)
and
fbr installation
in alcoves,
attics,
basements,
closets,
utility rooms,
erawlspaces,
and garages.
The fi/rnace
is factory=shipped
fbr 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 l-in. clearance
fiom combustible
materials
to supply air
ductwork
for a distance
of 36 inches horizontally
fiom the fimaace.
See NFPA
90B or local
code fbr further
requirements.
These
furnaces
SHALL
NOT
be installed
directly
on carpeting,
tile, or any other combustible
material
other than wood flooring.
In
downflow
installations,
factory
accessow
floor
base
MUST
be
used when
installed
on combustible
materials
and wood
flooring.
Special
base
is not required
when
this
Nmace
is installed
on
manufacturer's
(:oil Assembly
Part No. CD5 or CK5, or when Coil
Box Part No. KCAKC
is used.
The design
of this fi/rnace
line is
NOT
CSA (formerly
AGA
and CGA)
designocertified
fbr instal-
lation
in recreation
vehicles,
manufi_ctured
mobile
homes,
or
outdoors.
This
furnace
is designed
for
continuous
return-air
mininmm
temperature
of 60_>F db or intermittent
operation
down
to 55°F db
such as when
used with a night
setback
thermometer.
Return-air
temperature
must
not exceed
80°F
db. Failure
to follow
these
return-air
limits may affect reliability
of heat exchangers,
motors,
and controls.
(See Fig. 4.)
These
Nrnaces
are
shipped
with
the
drain
and pressure
robes
connected
for UPFLOW
applications.
Minor
modifications
are
required
when used in DOWNFLOW,
HORIZONTAL
RIGHT,
or
HORIZONTAL
LEFT
(supply=air
discharge
direction)
applica-
tions
as shown
in Fig.
1. See details
in Applications
section.
Install
this Nmace
only in a location
and position
as specified
in
LOCATION
and INSTALLATION
sections
of these
instnlctions.
Combustion
products
must be discharged
outdoors.
Connect
this
furnace
to an approved
vent
system
only,
as specified
in the
Combustion
Air and Vent piping
sections
of d_ese 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.
Always
install the furnace
to operate
within
the fitrnace'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.
When a Nrnace
is installed
so that supply ducts carry air circulated
by tl_e fi/rnace
to areas
outside
the space
containing
the f:umace,
the return air shall also be handled
by ducts sealed
to the Nrnace
casing
and terminating
outside
the space
containing
the fhrnace.
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