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GENERAL
INSTALLATION
INSTRUCTIONS
The
manufacturer
assumes
no responsibility
for equipment
installed
in violation
of any
code or regulation.
It is recommended
that
Manual
J of the Air Conditioning
Contractors
Association
(ACCA)
or A.R.I.
230 be fl)llowed
in
estimating
heating
requirements.
When
estimating
heating
requirements
_br installation
at altitudes
above
2000
ft.,
remember
the gas
input
may need
to be reduced
(See High
Altitude
Installation).
Material
in this
shipment
has
been
inspected
at the
factory
and
released
to the
transportation
agency
without
known
damage.
Inspect
exterior
of carton
for
evidence
of rough
handling
in shipment.
Unpack
carefully
after
moving
equipment
to approximate
location.
If damage
to contents
is found,
report
the
damage
immediately
to the
delivering
agency.
Codes
and
local
utility
requirements
governing
the
installa-
tion of gas fired
equipment,
wiring,
plumbing,
and flue
connections
must
be adhered
to. In the absence
of local codes,
the
installation
must
confl)rm
with
latest
edition
of the
National
Fuel
Gas
Code ANSI
Z223.1
• National
Installation
Code,
CAN/CGA
B 149.1.
The
latest
code may
be obtained
fl'om the American
Gas Association
Laboratories,
8501
E. Pleasant
Valley
Rd., Cleveland,
Ohio
44131.
These
flwnaces
have
been
classified
as CATEGORY
IV
flwnaces
in accordance
with
latest
edition
of ANSI
Z21.47
•
CAN/CGA
2.3 standards.
Category
IV flwnaces
operate
with
positive
vent
static
pressure
and with
a flue loss less than
17 percent.
These
conditions
require
special
venting
systems,
which
must
be
gas tight
and water
tight.
These
Category
IV Direct
Vent
flwnaces
are
approved
for installation
in Manutactured/
Mobile
housing
when
used with
BAYMFGH
100A.
To prevent shortening its service life, the furnace should not
be used as a "Construction
Heater" during the finishing
phases of construction until the requirements listed in item
9, a-g of the safety section of this publication have been met.
Condensate in the presence of chlorides and fluorides from
paint, varnish, stains, adhesives, cleaning compounds, and
cement create a corrosive condition which may cause rapid
deterioration of the heat exchanger.
Do not install the furnace in a corrosive or contaminated
atmosphere.
Installer's
Guide
Contents
INSTALLATION INSTRUCTIONS
General Installation Instructions
Location and Clearances
Outline Drawings
Upflow Installation
Downflow
Installation
Horizontal
Installation
Air For Combustion and Ventilation
Duct Connections
Return Air Filters
General Venting Instructions
Venting Material
Venting Tables
Horizontal Venting
Venting Through The Wall
Venting Throught The Roof
Downward Venting
Venting Through a Masonry Chimney
Condensate
Drain Instructions
Electrical
Connections
Field Wiring Diagrams
Gas Piping
Combustion Input Checks
Start Up and Adjustment
Preliminary
Inspections
Lighting
Instructions
Sequence
Of Operation
Control
And Safety
Switch
Adjustments
Airflow
Adjustment
Abnormal Conditions
IFC Error Flash Code
LOCATION
AND CLEARANCES
The
location
of the furnace
is normally
selected
by the
architect,
the builder,
or the installer.
However,
beibre
the
fllrnace
is moved
into place,
be sure
to consider
the fl_llowing
requirements:
1. Is the location
selected
as near
the vent
and
as central-
ized fl_r heat
distribution
as practical?
2. Do all clearances
between
the
flwnace
and
enclosure
equal
or exceed
the minimums
shown
in the Table
1.
3. Is there
sufficient
space
lbr servicing
the
flwnace
and
other
equipment?
A minimum
of 24 inches
front
accessi-
bility
to the flwnace
must
be provided.
Any access
door or
panel
must
permit
removal
of the largest
component.
4. Are there
at least
3 inches
of clearance
between
the fllrnace
front
panel
and any closed
panel
or door provided?
5.
6.
7.
8.
Are the vent
pipe and
combustion
air inlet
pipe within
vent
table
lengths?
Will the
pipes
remain
unobstructed?
Allow
sufficient
height
in supply
plenum
above
or below
the flwnace
to provide
lbr cooling
coil installation
if the
cooling
coil is not installed
at the
time
of this
flwnace
installation.
A flwnace
shall
be installed
so electrical
components
are
protected
from
water.
If the flwnace
is installed
in a residential
garage,
it
must
be installed
so that
the burners
and
the
ignition
source
are
located
not less than
18 inches
(46 cm) above
the floor
and the
flwnace
must
be located
or protected
to
aw_id physical
damage
from
vehicles.
IMPORTANT:
The furnace must be installed level The only allowable
variation would be slightly to the left and/or forward in upflow
installations or slightly toward the front in horizontal installa-
tions. This is necessary for proper condensate drainage.
18-CD19D6-27
3
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