Bryant 581Jx14 series User manual

581J*14
SINGLE PACKAGE ROOFTOP, GAS HEATING/ELECTRIC COOLING
WITH PURONR(R--410A) REFRIGERANT
SIZE 14
Installation Instructions
NOTE: Read the entire instruction manual before starting
the installation
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 2....................
Rated Indoor Airflow (cfm) 3.....................
INSTALLATION 6...............................
Jobsite Survey 6................................
Step 1 -- Plan for Unit Location 6..................
Roof Mount 6...............................
Step 2 -- Plan for Sequence of Unit Installation 7......
Curb--Mount Installation 7.....................
Pad--Mount Installation 7......................
Frame--Mount Installation 7....................
Step 3 -- Inspect Unit 7...........................
Step 4 -- Provide Unit Support 7...................
Roof Curb Mount 7..........................
Slab Mount (Horizontal Units Only) 9...........
Alternate Unit Support 9......................
Step 5 -- Field Fabricate Ductwork 9................
Step 6 -- Rig and Place Unit 9.....................
Positioning on Curb 10.......................
Step 7 -- Convert to Horizontal and Connect Ductwork 11
Step 8 -- Install Outside Air Hood 11...............
Economizer Hood Removal and Setup —
Factory Option 11...........................
Two Position Damper Hood Removal and Setup —
Factory Option 11...........................
Economizer Hood and Two--Position Hood 12.....
Step 9 -- Install Flue Hood 13.....................
Step 10 -- Install Gas Piping 13....................
Factory--Option Thru--Base Connections
(Gas Connections) 14.........................
Step 11 -- Install External Condensate Trap and Line 16..
Step 12 -- Make Electrical Connections 16...........
Field Power Supply 16........................
All Units 18................................
Units without Factory--Installed
Non--Fused Disconnect 18.....................
Units with Factory--Installed
Non--Fused Disconnect 18.....................
Convenience Outlets 19.......................
Factory--Option Thru--Base Connections
(Electrical Connections) 21....................
Units without Thru--Base Connections 21.........
Field Control Wiring 21.......................
Thermostat 21...............................
Unit without Thru--Base Connection Kit 22.......
Heat Anticipator Settings 22...................
Low Ambient Control (Factory Option) 22...........
Variable Frequency Drive (VFD)
2--Speed Indoor Fan Motor System (Factory Option) 22.
EconoMi$er X -- Ultra Low Leak Economizer
(Factory Option) 22.............................
Perfect HumiditytControl Connections 23........
Perfect Humidity -- Space RH Controller 23.......
RTU Open Control System 25.....................
Supply Air Temperature (SAT) Sensor 28.........
Outdoor Air Temperature (OAT) Sensor 29.......
EconoMi$er2 29.............................
Field Connections 29..........................
Space Temperature (SPT) Sensors 29............
Economizer Controls 30........................
Indoor Air Quality (CO2)Sensor 30.............
Outdoor Air Quality Sensor 31.................
Space Humidity Sensor or Humidistat 31.........
Smoke Detector/Fire Shutdown (FSD) 32.........
Connecting Discrete Inputs 32..................
Communication Wiring -- Protocols 33............
General 33.................................
Local Access 34.............................
RTU Open Troubleshooting 34.................
Outdoor Air Enthalpy Control 35.................
Differential Enthalpy Control 35................
Return Air Enthalpy Sensor 35.................
Smoke Detectors 36...........................
Step 13 -- Adjust Factory--Installed Options 42........
Step 14 -- Install Accessories 42...................
START--UP CHECKLIST 43.......................

2
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical
shock or other conditions which may cause personal
injury or property damage. Consult a qualified installer,
service agency, or your distributor or branch for
information or assistance. The qualified installer or
agency must use factory--authorized kits or accessories
when modifying this product. Refer to the individual
instructions packaged with the kits or accessories when
installing.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloths for brazing operations and
have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions attached to
the unit. Consult local building codes and appropriate
national electrical codes (in USA, ANSI/NFPA70,
National Electrical Code (NEC); in Canada, CSA C22.1)
for special requirements.
It is important to recognize safety information. This is the
safety--alert symbol . When you see this symbol on the
unit and in instructions or manuals, be alert to the
potential for personal injury.
Understand the signal words DANGER, WARNING,
CAUTION, and NOTE. These words are used with the
safety--alert symbol. DANGER 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 may 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.
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in personal
injury or death.
Disconnect gas piping from unit when leak testing at
pressure greater than 0.5 psig (3450 Pa). Pressures
greater than 0.5 psig (3450 Pa) will cause gas valve
damage resulting in hazardous condition. If gas valve
is subjected to pressure greater than 0.5 psig (3450
Pa), it must be replaced before use. When pressure
testing field--supplied gas piping at pressures of 0.5
psig (3450 Pa) or less, a unit connected to such piping
must be isolated by closing the manual gas valve.
!WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal
injury or death.
Before performing service or maintenance operations
on unit, always turn off main power switch to unit and
install lock(s) and lockout tag(s). Unit may have more
than one power switch.
!WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal
injury, death and/or equipment damage.
Puronr(R--410A) refrigerant systems operate at
higher pressures than standard R--22 systems. Do not
use R--22 service equipment or components on Puron
refrigerant equipment.
!WARNING
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could cause personal
injury or death.
Relieve pressure and recover all refrigerant before
system repair or final unit disposal.
Wear safety glasses and gloves when handling
refrigerants. Keep torches and other ignition sources
away from refrigerants and oils.
!WARNING
CUT HAZARD
Failure to follow this caution may result in personal
injury.
Sheet metal parts may have sharp edges or burrs. Use
care and wear appropriate protective clothing, safety
glasses and gloves when handling parts and servicing
air conditioning equipment.
CAUTION
!
581J*14

3
Rated Indoor Airflow (cfm)
The table to the right lists the rated indoor airflow used
for the AHRI efficiency rating for the units covered in this
document.
Model Number Full Load Airflow (cfm)
581J*14D/F/K/M 4375
581JE14D240A3A0AA
Model
581J = High Efficiency Gas Heat
Packaged Rooftop Unit
123456789
10 11 12 13 14 15 16 17
Coil Options (Outdoor – Indoor – Hail Guard)
A = Al/Cu – Al/Cu
B = Precoat Al/Cu – Al/Cu
C = E-coat Al/Cu – Al/Cu
D = E-coat Al/Cu – E-Coat Al/Cu
E = Cu/Cu – Al/Cu
F = Cu/Cu – Cu/Cu
M = Al/Cu – Al/Cu – Louvered Hail Guards
N = Precoat Al/Cu – Al/Cu – Louvered Hail Guards
P = E-coat Al/Cu – Al/Cu – Louvered Hail Guards
Q = E-coat Al/Cu – E-coat Al/Cu – Louvered Hail Guards
R = Cu/Cu – Al/Cu – Louvered Hail Guards
S = Cu/Cu – Cu/Cu – Louvered Hail Guards
Voltage
E = 460-3-60
P = 208/230-3-60
T = 575-3-60
Refirg. System/Gas Heat Options
D = Two Stage Cooling Models
F = Two Stage Cooling Models and
Stainless Steel Gas Heat Exchanger
K = Two Stage Cooling Models and Perfect HumidityTM
M = Two Stage Cooling Models/SS HX Heat and Perfect Humidity
Heat Level
Standard/Stainless Steel
150 = 150,000
180 = 180,000
240 = 240,000
Indoor Fan Options
1 = Standard Static Option – Belt Drive
2 = Medium Static Option – Belt Drive
3 = High Static Option – Belt Drive
C = High Static Option with High Efficiency Motor – Belt Drive
Cooling Tons
14 - 12.5 ton
Packaging and 2-Speed Indoor Fan Motor
A = Standard Packaging, electro mech. controls
that require W7212 EconoMi$er IV
B = LTL Packaging, electro mech. controls
that require W7212 EconoMi$er IV
C = Standard Packaging, electro mech. controls
that require W7220 EconoMi$er X
D = Standard Packaging and 2-speed Indoor Fan
Motor (VFD) Controller
E = LTL Packaging and 2-speed Indoor Fan
Motor (VFD) Controller
F = LTL Packaging, electro mech. controls that
require W7220 EconoMi$er X
Outdoor Air Options
A = None
B = Temperature Econo w/ Barometric Relief
and W7212 Econo Controller
E = Temperature Econo w/ Barometric Relief, CO2
and W7212 Econo Controller
H = Enthalpy Econo w/ Barometric Relief
and W7212 Econo Controller
L = Enthalpy Econo w/ Barometric Relief, CO2
and W7212 Econo Controller
Q = Motorized 2 Position Damper w/ Barometric Relief
U = Temperature Ultra Low Leak Econo
w/ Barometric Relief
W = Enthalpy Ultra Low Leak Econo w/ Barometric Relief
Factory Installed Options
0A = None
NOTE: See the 581J 3 to 15 ton Price Pages for a
complete list of factory installed options.
C150074
Fig. 1 -- 581J 14 Model Number Nomenclature (Example)
581J*14

4
C11338
Fig. 2 -- Unit Dimensional Drawing – 14 Size Unit
581J*14

5
C11339
Fig. 2 -- Unit Dimensional Drawing – 14 Size Unit (cont.)
581J*14

6
C
B
A
D
C12322
LOCATION DIMENSION CONDITION
A
48--- in (1219 mm)
18--- in (457 mm)
18--- in (457) mm
12--- in (305 mm)
Unit disconnect is mounted on panel
No disconnect, convenience outlet option
Recommended service clearance
Minimum clearance
B
42--- in (1067 mm)
36--- in (914 mm)
Special
Surface behind servicer is grounded (e.g., metal, masonry wall)
Surface behind servicer is electrically non--- conductive (e.g., wood, fiberglass)
Check sources of flue products within 10---ft of unit fresh air intake hood
C36--- in (914 mm)
18--- in (457 mm)
Side condensate drain is used
Minimum clearance
D
48--- in (1219 mm)
42--- in (1067 mm)
36--- in (914 mm)
Special
No flue discharge accessory installed, surface is combustible material
Surface behind servicer is grounded (e.g., metal, masonry wall, another unit)
Surface behind servicer is electrically non--- conductive (e.g., wood, fiberglass)
Check for adjacent units or building fresh air intakes within 10---ft (3 m) of this unit’s flue outlet
NOTE: Unit not designed to have overhead obstruction. Contact Application Engineering for guidance on any application
planning overhead obstruction or for vertical clearances.
Fig. 3 -- Service Clearance Dimensional Drawing
INSTALLATION
Jobsite Survey
Complete the following checks before installation.
1. Consult local building codes and the NEC (National
Electrical Code) ANSI/NFPA 70 for special installa-
tion requirements.
2. Determine unit location (from project plans) or select
unit location.
3. Check for possible overhead obstructions which may
interfere with unit lifting or rigging.
Step 1 — Plan for Unit Location
Select a location for the unit and its support system (curb
or other) that provides for at least the minimum clearances
required for safety. This includes the clearance to
combustible surfaces, unit performance and service access
below, around and above unit as specified in unit
drawings. See Fig. 3.
NOTE: Consider also the effect of adjacent units.
Unit may be installed directly on wood flooring or on Class
A, B, or C roof--covering material when roof curb is used
Do not install unit in an indoor location. Do not locate air
inlets near exhaust vents, relief valves, or other sources of
contaminated air.
Although unit is weatherproof, avoid locations that permit
water from higher level runoff and overhangs to fall onto
the unit.
Select a unit mounting system that provides adequate
height to allow installation of condensate trap per
requirements. Refer to Step 11 — Install External
Condensate Trap and Line – for required trap dimensions.
Roof Mount —
Check building codes for weight distribution
requirements. Unit operating weight is shown in Table 1.
581J*14

7
Table 1 – Operating Weights
581J*14
COMPONENT UNITS LB (KG)
Base Unit 1430 (649)
Economizer
Vertical 100 (45)
Horizontal 115 (52)
Perfect Humidity™ System 62 (28)
Powered Outlet 32 (15)
Curb
14--- in/356 mm 180 (82)
24--- in/610 mm 235 (107)
Step 2 — Plan for Sequence of Unit Installation
The support method used for this unit will dictate different
sequences for the steps of unit installation. For example,
on curb--mounted units, some accessories must be
installed on the unit before the unit is placed on the curb.
Review the following for recommended sequences for
installation steps.
Curb--mounted installation —
Install curb
Install field--fabricated ductwork inside curb
Install accessory thru--base service connection package
(affects curb and unit) (refer to accessory installation
instructions for details)
Prepare bottom condensate drain connection to suit
planned condensate line routing (refer to Step 9 for
details)
Rig and place unit
Install outdoor air hood
Install condensate line trap and piping
Make electrical connections
Install other accessories
Pad--mounted installation —
Prepare pad and unit supports
Check and tighten the bottom condensate drain
connection plug
Rig and place unit
Convert unit to side duct connection arrangement
Install field--fabricated ductwork at unit duct openings
Install outdoor air hood
Install condensate line trap and piping
Make electrical connections
Install other accessories
Frame--mounted installation —
Frame--mounted applications generally follow the
sequence for a curb installation. Adapt as required to
suit specific installation plan.
Step 3 — Inspect Unit
Inspect unit for transportation damage. File any claim
with transportation agency.
Confirm before installation of unit that voltage, amperage
and circuit protection requirements listed on unit data
plate agree with power supply provided.
On units with hinged panel option, check to be sure all
latches are snug and in closed position.
Locate the carton containing the outside air hood parts;
see Figs. 11 & 12. Do not remove carton until unit has
been rigged and located in final position.
Step 4 — Provide Unit Support
Roof Curb Mount —
Accessory roof curb details and dimensions are shown in
Fig. 4. Assemble and install accessory roof curb in
accordance with instructions shipped with the curb.
NOTE: The gasketing of the unit to the roof curb is
critical for a watertight seal. Install gasket supplied with
the roof curb as shown in Fig. 4. Improperly applied
gasket can also result in air leaks and poor unit
performance.
581J*14

8
C10772
Fig. 4 -- Roof Curb Details
581J*14

9
Curb should be level. This is necessary for unit drain to
function properly. Unit leveling tolerances are show in
Fig. 5. Refer to Accessory Roof Curb Installation
Instructions for additional information as required.
A-B
0.5” (13)
B-C
1.0” (25)
A-C
1.0” (25)
MAXIMUM ALLOWABLE
DIFFERENCE IN. (MM)
A
B
C
C10001
Fig. 5 -- Unit Leveling Tolerances
Install insulation, cant strips, roofing felt, and counter
flashing as shown. Ductwork must be attached to curb and
not to the unit.
IMPORTANT:
If the unit’s gas connection and/or electric and control
wiring is to be routed through the basepan and the unit
is equipped with the factory--installed Thru--the--Base
service option see the following sections:
SFactory--Option Thru--Base Connections
(Gas Connection) on page 11
SFactory--Option Thru--Base Connections
(Electrical Connections) on page 18
If using the field--installed Thru--the--Base accessory
follow the instructions provided with the accessory kit.
NOTE: If gas and/or electrical connections are not
going to occur at this time, tape or otherwise cover the
fittings so that moisture does not get into the building or
conduit in the interim.
Slab Mount (Horizontal Units Only) —
Provide a level concrete slab that extends a minimum of
6 in. (150 mm) beyond unit cabinet. Install a gravel apron
in front of condenser coil air inlet to prevent grass and
foliage from obstructing airflow.
NOTE: Horizontal units may be installed on a roof curb
if required.
Alternate Unit Support
(InLieuofCurborSlabMount)—
A non--combustible sleeper rail can be used in the unit curb
support area. If sleeper rails cannot be used, support the long
sides of the unit with a minimum of 3 equally spaced 4--in. x
4--in. (102 mm x 102 mm) pads on each side.
Step 5 — Field Fabricate Ductwork
NOTE: Cabinet return-air static pressure (a negative
condition) shall not exceed 0.35 in. wg (87 Pa) with
economizer or 0.45 in. wg (112 Pa) without economizer.
For vertical ducted applications, secure all ducts to roof curb
and building structure. Do not connect ductwork to unit.
Fabricate supply ductwork so that the cross sectional
dimensions are equal to or greater than the unit supply
duct opening dimensions for the first 18 in. (458 mm) of
duct length from the unit basepan.
Insulate and weatherproof all external ductwork, joints,
and roof openings with counter flashing and mastic in
accordance with applicable codes.
Ducts passing through unconditioned spaces must be
insulated and covered with a vapor barrier.
If a plenum return is used on a vertical unit, the return
should be ducted through the roof deck to comply with
applicable fire codes.
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in damage
to roofing materials.
Membrane roofs can be cut by sharp sheet metal
edges. Be careful when placing any sheet metal parts
on such roof.
CAUTION
!
Step 6 — Rig and Place Unit
When the unit is ready to be rigged and no longer will be
lifted by a fork truck, the wood protector under the basepan
must be removed. Remove 4 screws from each base rail.
Wood protector will drop to the ground. See instructions on
the unit base rails.
Keep unit upright and do not drop. Spreader bars are
required. Rollers may be used to move unit across a roof.
Level by using unit frame as a reference. See Table 1 and
Fig. 6 for additional information.
Lifting holes are provided in base rails as shown in Fig. 6.
Refer to rigging instructions on unit.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in
equipment damage.
All panels must be in place when rigging. Unit is not
designed for handling by fork truck.
CAUTION
!
Before setting the unit onto the curb, recheck gasketing on
curb.
581J*14

10
DETAIL “A”
PLACE ALL SEAL STRIP IN PLACE BEFORE PLACING
UNIT ON ROOF CURB.
DUCT END
SEE DETAIL “A”
914 - 1371
( 36” - 54” )
“B”
“A”
“C”
C10774
UNIT MAX WEIGHT DIMENSIONS
A B C
LB KG IN MM IN MM IN MM
581J*14 2215 1009 116.0 2945 62.5 1590 59.5 1510
NOTES:
1. SPREADER BARS REQUIRED — Top damage will occur if spreader bars are not used.
2. Dimensions in ( ) are in millimeters.
3. Hook rigging shackles through holes in base rail, as shown in detail “A.” Holes in base rails are centered around
the unit center of gravity. Use wooden top to prevent rigging straps from damaging unit.
Fig. 6 -- Rigging Details
PositioningonCurb—
For full perimeter curbs CRRFCURB074A00 and 075A00,
the clearance between the roof curb and the front and rear
base rails should be 1/4in (6.4 mm). The clearance between
the curb and the end base rails should be 1/2in (13 mm). For
retrofit applications with curbs CRRFCURB003A01 and
4A01, the unit should be position as shown in Fig. 7.
Maintain the 15.5 in (394 mm) and 8 5/8in (220 mm)
clearances and allow the 22 5/16 in (567 mm) dimension to
float if necessary.
C10003
Fig. 7 -- Retrofit Installation Dimensions
If the alternative condensate drain location through the
bottom of the unit is used in conjunction with a retrofit
curb, the hole in the curb must be moved 12.5 in (320
mm) towards the end of the unit. (See Fig. 8.)
Although unit is weatherproof, guard against water from
higher level runoff and overhangs.
Remove all shipping materials and top skid. Remove extra
center post from the condenser end of the unit so that the
condenser end of the unit matches Figs. 27 and 28.
Recycle or dispose of all shipping materials.
Original
Position
New Position
(moved 12.5 in.)
C10904
Fig. 8 -- Alternative Condensate Drain Hole Positions
IMPORTANT:
If the unit has the factory--installed Thru--the--Base
option, make sure to complete installation of the option
before placing the unit on the roof curb.
See the following sections:
SFactory--Option Thru--Base Connections
(Gas Connection) on page 11
SFactory--Option Thru--Base Connections
(Electrical Connections) on page 18
NOTE: If gas and/or electrical connections are not
going to occur at this time, tape or otherwise cover the
fittings so that moisture does not get into the building or
conduit in the interim.
581J*14

11
Step 7 — Convert to Horizontal and Connect
Ductwork (when required)
Unit is shipped in the vertical duct configuration. Unit
without factory--installed economizer or return air smoke
detector option may be field--converted to horizontal
ducted configuration using accessory
CRDUCTCV002A00. To convert to horizontal
configuration, remove screws from side duct opening
covers and remove covers.
Discard the supply duct cover. Install accessory
CRDUCTCV002A00 to cover the vertical supply duct
opening. Use the return duct cover removed from the end
panel to cover the vertical return duct opening.
Field--supplied flanges should be attached to horizontal
duct openings and all ductwork should be secured to the
flanges. Insulate and weatherproof all external ductwork,
joints, and roof or building openings with counter flashing
and mastic in accordance with applicable codes.
Do not cover or obscure visibility to the unit’s informative
data plate when insulating horizontal ductwork.
C06108
Fig. 9 -- Horizontal Conversion Panels
Step 8 — Install Outside Air Hood
Economizer Hood Removal and Setup --
Factory Option —
1. The hood is shipped in knock--down form and located
in the return air compartment. It is attached to the
economizer using two plastic tie--wraps.
2. To gain access to the hood, remove the filter access
panel. (See Fig. 10.)
3. Locate and cut the (2) plastic tie--wraps, being careful
to not damage any wiring. (See Fig. 11.)
4. Carefully lift the hood assembly through the filter
access opening and assemble per the steps outlined in
Economizer Hood and Two–Position Hood on page 10.
FILTER ACCESS PANEL
INDOOR COIL ACCESS PANEL
C10004
Fig. 10 -- Typical Access Panel Locations
Economizer
Cut Plastic Ties
(2) Places
Remove Hood Parts
C10005
Fig. 11 -- Economizer Hood Package Location
Two Position Damper Hood Removal and Setup --
Factory Option —
1. The hood is shipped in knock--down form and
assembled to a metal support tray using plastic stretch
wrap. Located in the return air compartment, the
assembly’s metal tray is attached to the basepan and
also attached to the damper using two plastic
tie--wraps.
2. To gain access to the hood, remove the filter access
panel. (See Fig. 10.)
3. Locate the (2) screws holding the metal tray to the
basepan and remove. In order to remove the screws, it
may be necessary to remove the panel underneath the
two--position damper. Remove the two screws. Locate
and cut the (2) plastic tie--wraps securing the
assembly to the damper. (See Fig. 12.) Be careful to
not damage any wiring or cut tie--wraps securing any
wiring.
581J*14

12
4. Carefully lift the hood assembly (with metal tray)
through the filter access opening and assemble per the
steps outlined in Economizer Hood and Two–Position
Hood on page 10.
5. If removed, reattach the panel under the damper.
Hood Parts
Plastic Tie Wrap
Qty (2)
Screws for Metal Tray
Qty (2)
C10006
Fig. 12 -- Two--Position Damper Hood Package Location
Economizer Hood and Two--Position Hood —
NOTE: If the power exhaust accessory is to be installed
on the unit, the hood shipped with the unit will not be
used and must be discarded. Save the aluminum filter for
use in the power exhaust hood assembly.
1. The indoor coil access panel will be used as the top of
the hood. If the panel is still attached to the unit, re-
move the screws along the sides and bottom of the
panel. See Fig. 13.
SIDE
PANEL
INDOOR
COIL
ACCESS
PANEL
INDOOR
COIL
ACCESS
PANEL
CAULK
HERE
TOP
PANEL
RAIN DEFLECTORS
C10007
Fig. 13 -- Indoor Coil Access Panel Relocation
2. Swing out indoor coil access panel and insert the
hood sides under the panel (hood top). Be careful not
to lift the panel too far as it might fall out. Use the
screws provided to attach the hood sides to the hood
top. Use screws provided to attach the hood sides to
the unit. See Fig. 14.
TOP
PANEL
INDOOR COIL
ACCESS PANEL
SCREW
HOOD DIVIDER
LEFT
HOOD
SIDE
C10008
Fig. 14 -- Economizer Hood Construction
3. Remove the shipping tape holding the economizer
barometric relief damper in place.
4. Insert the hood divider between the hood sides. See
Fig. 14 and 15. Secure hood divider with 3 screws on
each hood side. The hood divider is also used as the
bottom filter rack for the aluminum filter.
5. Attach the post that separates the filters with the
screws provided.
6. Open the filter clips which are located underneath the
hood top. Insert the aluminum filters into the bottom
filter rack (hood divider). Push the filter into position
past the open filter clips. Close the filter clips to lock
the filters into place. See Fig. 15.
7. Install the two rain deflectors on the edge of the hood
topasshowninFig.13.
DIVIDER
BAROMETRIC
RELIEF
CLEANABLE
ALUMINUM
FILTER
FILTER
HOOD
FILTER
CLIP
OUTSIDE
AIR
C10009
Fig. 15 -- Economizer Filter Installation
8. Caulk the ends of the joint between the unit top panel
and the hood top as shown in Fig. 13.
9. Replace the filter access panel.
581J*14

13
Step 9 — Install Flue Hood
The flue hood is shipped screwed to the basepan beside
the burner compartment access panel. Remove the panel
below the control box access panel to access the flue hood
shipping location. Using screws provided, install flue
hood and screen in location shown in Fig. 16.
FLUE
HOOD
CONTROL BOX
ACCESS PANEL
C10804
Fig. 16 -- Flue Hood Details
Step 10 — Install Gas Piping
Installation of the gas piping must be accordance with
local building codes and with applicable national codes.
In U.S.A., refer to NFPA 54/ANSI Z223.1 National Fuel
Gas Code (NFGC). In Canada, installation must be
accordance with the CAN/CSA B149.1 and CAN/CSA
B149.2 installation codes for gas burning appliances.
This unit is factory equipped for use with Natural Gas fuel
at elevations up to 2000 ft (610 m) above sea level. Unit
may be field converted for operation at elevations above
2000 ft (610 m) and/or for use with liquefied petroleum
fuel. See accessory kit installation instructions regarding
these accessories.
NOTE: In U.S.A. the input rating for altitudes above 2000
ft (610 m) must be derated by 4% for each 1000 ft (305 m)
above sea level. In Canada the input rating must be derated
by 10% for altitudes of 2000 ft (610 m) to 4500 ft. (1372 m)
above sea level.
For natural gas applications, gas pressure at unit gas
connection must not be less than 5 in. wg (1250 Pa) or
greater than 13 in. wg (3240 Pa) while the unit is operating.
For liquified petroleum applications, the gas pressure must
not be less than 11 in. wg (2740 Pa) or greater than 13 in.
wg (3240 Pa) at the unit connection.
Table 2 – Natural Gas Supply Line Pressure Ranges
UNIT MIN MAX
581J*14 5.0 in. wg (1250 Pa) 13.0 in. wg (3240 Pa)
Table 3 – Liquid Propane Supply Line Pressure Ranges
UNIT MIN MAX
581J*14 11.0 in. wg (2740 Pa) 13.0 in. wg (3240 Pa)
The gas supply pipe enters the unit at the burner access
panel on the front side of the unit, through the long slot at
the bottom of the access panel. The gas connection to the
unit is made to the 3/4--in. FPT gas inlet port on the unit gas
valve.
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in damage
to equipment.
When connecting the gas line to the unit gas valve,
the installer MUST use a backup wrench to prevent
damage to the valve.
CAUTION
!
Install a gas supply line that runs to the unit heating
section. Refer to the NFPA 54/NFGC or equivalent code
for gas pipe sizing data. Size the gas supply line to allow
for a maximum pressure drop of 0.5--in wg (124 Pa)
between gas regulator source and unit gas valve
connection when unit is operating at high--fire flow rate.
The gas supply line can approach the unit in three ways:
horizontally from outside the unit (across the roof),
thru--curb/under unit basepan (accessory kit required) or
through unit basepan (factory--option or accessory kit
required). Consult accessory kit installation instructions
for details on these installation methods. Observe
clearance to gas line components per Fig. 17.
LEGEND
*Field supplied.
NOTE: Follow all local codes.
NFGC – National Fuel Gas Code
STEEL PIPE
NOMINAL DIAMETER
(in.)
SPACINGOFSUPPORTS
X DIMENSION
(ft)
1/2
3/4or 1
11/4or larger
6
8
10
X
BASE UNIT
BASE RAIL
ROOF
CURB
9” MINIMUM CLEARANCE
FOR PANEL REMOVAL
MANUAL GAS
SHUTOFF VALVE*
GAS
REGULATOR*
48” MINIMUM
DRIP LEG
PER NFGC*
FIELD-
FABRICATED
SUPPORT*
FROM
GAS
METE
R
C11121
Fig. 17 -- Gas Piping Guide
581J*14

14
Factory--Option Thru--Base Connections
(Gas Connection) —
This service connection kit consists of a 3/4--in NPT gas adapter
fitting (stainless steel), a 1/2--in electrical bulkhead connector
and a 11/2--in electrical bulkhead connector, connected to an
“L” bracket covering the embossed (raised) section of the unit
basepan in the condenser section. See Fig. 18.
1
1
/
2
” ELECTRICAL
BULKHEAD
CONNECTOR
1
/
2
” ELECTRICAL
BULKHEAD
CONNECTOR
3
/
4
” NPT GAS
ADAPTER
FITTING
C10905
Fig. 18 -- Thru--the--Base Option, Shipping Position
1. Remove the “L” bracket assembly from the unit (see
Fig. 18).
2. Cut and discard the wire tie on the gas fitting. Hand
tighten the fitting if it has loosened in transit.
3. Remove connector plate assembly from the “L”
bracket and discard the “L” bracket, but retain the
washer head screws and the gasket (located between
the “L” bracket and the connector plate assembly
NOTE: Take care not to damage the gasket, as it is
reused in the following step.
4. Place the gasket over the embossed area in the
basepan, aligning the holes in the gasket to the holes
in the basepan. See Fig. 19.
5. Install the connector plate assembly to the basepan
using 8 of the washer head screws.
NOTE: If gas and/or electrical connections are not going to
occur at this time, tape or otherwise cover the fittings so that
moisture does not get into the building or conduit in the interim.
The thru--base gas connector has male and female threads.
The male threads protrude above the basepan of the unit;
the female threads protrude below the basepan.
Check tightness of connector lock nuts before connecting
gas piping.
Install a 3/4--in NPT street elbow on the thru--base gas
fitting. Attach a 3/4--in pipe nipple with minimum length
of 16--in (406 mm) (field--supplied) to the street elbow
and extend it through the access panel at the gas support
bracket. (See Fig. 20.)
GASKET
CONNECTOR
PLATE
ASSEMBLY
C10906
Fig. 19 -- Completing Installation of Thru--the--Base
Option
3
/
4
-in NPT
STREET
ELBOW
THRU-BASE
GAS FITTING
GAS
SUPPORT
BRACKET
C10806
Fig. 20 -- Gas Line Piping
Other hardware required to complete the installation of
the gas supply line will include a manual shutoff valve, a
sediment trap (drip leg) and a ground--joint union. A
pressure regulator valve may also be required (to convert
gas pressure from pounds to inches of pressure). The
manual shutoff valve must be located within 6--ft (1.83 m)
of the unit. The union, located in the final leg entering the
unit, must be located at least 9--in (230 mm) away from
the access panel to permit the panel to be removed for
service. If a regulator valve is installed, it must be located
a minimum of 4--ft (1220 mm) away from the unit’s flue
outlet. Some municipal codes require that the manual
shutoff valve be located upstream of the sediment trap.
See Fig. 21 and 22 for typical piping arrangements for gas
piping that has been routed through the sidewall of the
curb. See Fig. 23 for typical piping arrangement when
thru--base is used. Ensure that all piping does not block
access to the unit’s main control box or limit the required
working space in front of the control box.
581J*14

15
9” (229mm) min
Union
Shut Off
Valve
Drip
Leg
Thru-Curb Adapter
Unit Base Rail
C07469
Fig. 21 -- Gas Piping
Drip
Leg
Shut Off
Valve
Union
Thru-Curb Adapter
Burner
Access
Panel
9” (229mm) min
Unit Base Rail
C07470
Fig. 22 -- Gas Piping
C10826
Fig. 23 -- Gas Piping Thru--Base Connections
When installing the gas supply line, observe local codes
pertaining to gas pipe installations. Refer to the NFPA
54/ANSI Z223.1 NFGC latest edition (in Canada, CAN/CSA
B149.1). In the absence of local building codes, adhere to
the following pertinent recommendations:
1. Avoid low spots in long runs of pipe. Grade all pipe
1/4--in. in every 15 ft (7 mm in every 5 m) to prevent
traps. Grade all horizontal runs downward to risers.
Use risers to connect to heating section and to meter.
2. Protect all segments of piping system against physical
and thermal damage. Support all piping with appro-
priate straps, hangers, etc. Use a minimum of one
hanger every 6 ft (1.8 m). For pipe sizes larger than
1/2--in., follow recommendations of national codes.
3. Apply joint compound (pipe dope) sparingly and only
to male threads of joint when making pipe connec-
tions. Use only pipe dope that is resistant to action of
liquefied petroleum gases as specified by local and/or
national codes. If using PTFE (Teflon) tape, ensure
the material is Double Density type and is labeled for
use on gas lines. Apply tape per manufacturer’s in-
structions.
4. Pressure--test all gas piping in accordance with local
and national plumbing and gas codes before connect-
ing piping to unit.
NOTE: Pressure test the gas supply system after the gas
supply piping is connected to the gas valve. The supply
piping must be disconnected from the gas valve during the
testing of the piping systems when test pressure is in
excess of 0.5 psig (3450 Pa). Pressure test the gas supply
piping system at pressures equal to or less than 0.5 psig
(3450 Pa). The unit heating section must be isolated from
the gas piping system by closing the external main manual
shutoff valve and slightly opening the ground--joint union.
Check for gas leaks at the field--installed and
factory--installed gas lines after all piping connections
have been completed. Use soap--and--water solution (or
method specified by local codes and/or regulations).
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
SConnect gas pipe to unit using a backup wrench to
avoid damaging gas controls.
SNever purge a gas line into a combustion chamber.
SNever test for gas leaks with an open flame. Use a
commercially available soap solution made
specifically for the detection of leaks to check all
connections.
SUse proper length of pipe to avoid stress on gas
control manifold.
!WARNING
NOTE: If orifice hole appears damaged or it is suspected
to have been re--drilled, check orifice hole with a
numbered drill bit of correct size. Never re--drill an
orifice. A burr--free and squarely aligned orifice hole is
essential for proper flame characteristics. See Fig. 24.
581J*14

16
BURNER
ORIFICE
A93059
Fig. 24 -- Orifice Hole
Step 11 — Install External Condensate Trap and
Line
The unit has one 3/4-in. condensate drain connection on
the end of the condensate pan and an alternate connection
on the bottom. See Fig. 25. Unit airflow configuration
does not determine which drain connection to use. Either
drain connection can be used with vertical or horizontal
applications.
DRAIN
(FACTORY-INSTALLED)
PLUG
CONDENSATE PAN (SIDE VIEW)
STANDARD
SIDE DRAIN
ALTERNATE
BOTTOM DRAIN
C08021
Fig. 25 -- Condensate Drain Pan (Side View)
When using the standard side drain connection, ensure the
red plug in the alternate bottom connection is tight. Do
this before setting the unit in place. The red drain pan can
be tightened with a 1/2--in. square socket drive extension.
To use the alternate bottom drain connection, remove the
red drain plug from the bottom connection (use a 1/2-- i n .
square socket drive extension) and install it in the side
drain connection.
The piping for the condensate drain and external trap can
be completed after the unit is in place. See Fig. 26.
All units must have an external trap for condensate
drainage. Install a trap at least 4-in. (102 mm) deep and
protect against freeze-up. If drain line is installed
downstream from the external trap, pitch the line away
from the unit at 1-in. per 10 ft (25 mm in 3 m) of run. Do
not use a pipe size smaller than the unit connection
(3/4-in.).
NOTE: Trap should be deep enough to offset maximum unit static
difference. A 4” (102) trap is recommended.
MINIMUM PITCH
1” (25mm) PER
10’ (3m) OF LINE BASE RAIL
OPEN
VENT
TO ROOF
DRAIN
DRAIN PLUG
ROOF
CURB
SEE NOTE
2˝(51) MIN
C08022
Fig. 26 -- Condensate Drain Piping Details
Step 12 — Make Electrical Connections
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Do not use gas piping as an electrical ground. Unit
cabinet must have an uninterrupted, unbroken
electrical ground to minimize the possibility of
personal injury if an electrical fault should occur. This
ground may consist of electrical wire connected to
unit ground lug in control compartment, or conduit
approved for electrical ground when installed in
accordance with NEC (National Electrical Code);
ANSI/NFPA 70, latest edition (in Canada, Canadian
Electrical Code CSA [Canadian Standards
Association] C22.1), and local electrical codes.
!WARNING
NOTE: Field--supplied wiring shall conform with the
limitations of minimum 63_F(33_C) rise.
Field Power Supply —
For those units without through--the--curb power, conduit
must be used to route the main power from the condenser
end, via the power entry in the corner post of the unit (see
Figs. 27 and 28) to either the factory option disconnect or
the bottom of the control box. 1” conduit is provided
wrapped around compressor. A second conduit is provided
with factory installed powered convenience outlet. For those
units that require conduit larger than 1”, it must be field
supplied. Figs. 27 and 28 show the wire routings.
If the field disconnect is larger than 100A, it must be
attached to the unit using accessory CRDISBKT001A00
— disconnect switch bracket — (see Fig. 29). Follow the
instructions provided with this accessory. For smaller field
disconnects, be sure to use 1/2” screws to mount the
disconnect directly to the end panel (see Fig. 30). In either
case, set the disconnect vertical location on the unit so
that a 90_fitting can be used to connect the conduit to the
disconnect.
581J*14

17
C10010
Fig. 27 -- Conduit into Factory Option Disconnect
C10011
Fig. 28 -- Conduit into Control Box
C10853
Fig. 29 -- Mounting Position for Field Disconnects
(over 100A)
Field power wires are connected to the unit at line--side
pressure lugs at the main terminal block (TB1) or at
factory--installed option non--fused disconnect switch.
Refer to Table 4 for maximum wire size at connection
lugs. Use copper wire only. See Fig. 32.
C10854
Fig. 30 -- Mounting Position for Field Disconnect
(up to 100A)
Table 4 – Connection Lug Min/Max Wire Sizes
Minimum Maximum
TB1 in unit control box #14 #1
Disconnect Option #14 #1
W/O Disconnect Option (TB1) #14 00
NOTE: TEST LEADS -- Unit may be equipped with
short leads (pigtails) on the field line connection points off
the optional disconnect switch. These leads are for factory
run--test purposes only; remove and discard before
connecting field power wires to unit connection points.
Make field power connections directly to line connection
pressure lugs only.
FIRE HAZARD
Failure to follow this warning could result in
intermittent operation or performance satisfaction.
Do not connect aluminum wire between disconnect
switch and furnace. Use only copper wire (see Fig. 31).
!WARNING
COPPER
WIRE ONLY
ELECTRIC
DISCONNECT
SWITCH
ALUMINUM
WIRE
A93033
Fig. 31 -- Disconnect Switch and Unit
581J*14

18
All Units —
All field wiring must comply with NEC and all local
requirements.
Size wire based on MCA (Minimum Circuit Amps) on the
unit informative plate. See Fig. 32 and the unit label
diagram for power wiring connections to the unit power
terminal blocks and equipment ground. Refer to Table 4
for maximum wire size at connection lugs.
Provide a ground--fault and short--circuit over--current
protection device (fuse or breaker) per NEC Article 440
(or local codes). Refer to unit informative data plate for
MOCP (Maximum Over--current Protection) device size.
Voltage to compressor terminals during operation must be
within voltage range indicated on unit nameplate. See Tables
7 -- 10. On 3--phase units, voltages between phases must be
balanced within 2% and the current within 10%. Use the
formula shown in the legend for Tables 7 -- 10 (see Note 2
on page 41) to determine the percent of voltage imbalance.
All units except 208/230-v units are factory wired for the
voltage shown on the nameplate. If the 208/230-v unit is
to be connected to a 208-v power supply, the control
transformer must be rewired by moving the black wire
with the 1/4-in. female spade connector from the 230--v
connection and moving it to the 200-v 1/4-in. male
terminal on the primary side of the transformer. Refer to
unit label diagram for additional information.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage.
Operation on improper line voltage or excessive phase
imbalance constitutes abuse and may cause damage to
electrical components. Such operation would invalidate
any applicable Bryant warranty.
CAUTION
!
NOTE: Check all factory and field electrical connections
for tightness.
Units Without Factory--Installed
Non--Fused Disconnect —
When installing units, provide a disconnect switch of
adequate size per NEC (National Electrical Code).
Disconnect sizing data is provided on the unit informative
plate. Locate on unit cabinet or within sight of the unit per
national or local codes. Do not cover unit informative
plate if mounting the disconnect on the unit cabinet.
11 12 13
L1 L3
TB1
208/230-3-60
460-3-60
575-3-60
Disconnect
per
NEC
Units Without Disconnect Option
L2
Units With Disconnect Option
2
4
1
3
5
L1
L2
L3
Optional
Disconnect
Switch
Disconnect factory test leads; discard.
Factory
Wiring
6
C11368
Fig. 32 -- Power Wiring Connections
Units with Factory--Installed Non--Fused Disconnect —
The factory--installed option non--fused disconnect switch
(NFD) is located in a weatherproof enclosure located
under the main control box. The manual switch handle is
accessible through an opening in the access panel. Discard
the factory test leads (see Fig. 32). The factory disconnect
is an 80A disconnect.
C12324
Fig. 33 -- Location of Non--Fused Disconnect Enclosure
581J*14

19
To field install the NFD shaft and handle:
1. Remove the unit front panel (see Fig. 2).
2. Remove (3) hex screws on the NFD enclosure -- (2) on
the face of the cover and (1) on the bottom.
3. Remove the front cover of the NFD enclosure.
4. Make sure the NFD shipped from the factory is at
OFF position (the arrow on the black handle knob is
at OFF).
5. Insert the shaft with the cross pin on the top of the shaft
in the horizontal position.
6. Measure the tip of the shaft to the top surface of the
pointer to be 3.75 -- 3.88 in. (95 -- 99 mm) for 80A &
100A NFD and 3.43 -- 3.56 in. (87 -- 90 mm) for
200A NFD.
7. Tighten the locking screw to secure the shaft to the
NFD.
8. Turn the handle to the OFF position with red arrow
pointing at OFF.
9. Install the handle on to the painted cover horizontally
with the red arrow pointing to the left.
10. Secure the handle to the painted cover with (2) screws
and lock washers supplied.
11. Engaging the shaft into the handle socket, re--install
(3) hex screws on the NFD enclosure.
12. Re--install the unit front panel.
C12325
Fig. 34 -- Handle and Shaft Assembly for NFD
Convenience Outlets —
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Units with convenience outlet circuits may use
multiple disconnects. Check convenience outlet for
power status before opening unit for service. Locate
its disconnect switch, if appropriate, and open it.
Lock--out and tag--out this switch, if necessary.
!WARNING
Two types of convenience outlets are offered on the
581J*14: non--powered and unit--powered. Both types
provide a 125--volt GFCI (ground--fault
circuit--interrupter) duplex receptacle rated at 15--A
behind a hinged waterproof access cover, located on the
panel beneath the control box. See Fig. 35.
Convenience
Outlet
GFCI
Pwd-CO
Fuse
Switch
Pwd-CO
Transformer
Disconnect
Access Panel
C10361
Fig. 35 -- Convenience Outlet Location
Non--powered type: This type requires the field
installation of a general--purpose 125--volt 15--A circuit
powered from a source elsewhere in the building. Observe
national and local codes when selecting wire size and
conduit requirements, fuse or breaker requirements and
disconnect switch size and location. Route 125--v power
supply conductors into the bottom of the utility box
containing the duplex receptacle.
Unit--powered type: A unit--mounted transformer is
factory--installed to stepdown the main power supply
voltage to the unit to 115--v at the duplex receptacle. This
option also includes a manual switch with fuse, located in
a utility box and mounted on a bracket behind the
convenience outlet; access is through the panel beneath
the control box. See Fig. 35.
The primary leads to the convenience outlet transformer are
not factory--connected. Selection of primary power source is
581J*14

20
a customer--option. If local codes permit, the transformer
primary leads can be connected at the line--side terminals on
the unit--mounted non--fused disconnect; this will provide
service power to the unit when the unit disconnect switch is
open. Other connection methods will result in the
convenience outlet circuit being de--energized when the unit
disconnect switch is open. See Fig. 36. On a unit without a
unit--mounted disconnect, connect the source leads to the
main terminal block (TB1).
C08283
UNIT
VOLTAGE
CONNECT
AS
PRIMARY
CONNECTIONS
TRANSFORMER
TERMINALS
208,
230 240 L1: RED +YEL L2: BLU + GRA
H1 + H3
H2 + H4
460 480
L1: RED
Splice BLU + YEL
L2: GRA
H1
H2 + H3
H4
575 600 L1: RED
L2: GRA
H1
H2
Fig. 36 -- Unit Powered Convenience Outlet Wiring
Fuse on power type: The factory fuse is a Bussman
“Fusetron” T--15, non--renewable screw--in (Edison base)
type plug fuse.
If the convenience outlet transformer is connected to the line
side of a field disconnect, the conduit provided with the unit
must be used to protect the wire as they are routed from the
transformer to the field disconnect. The end of the conduit
with the straight connector attaches to the field disconnect.
The other end does not need to connect to the transformer;
however, the conduit must be routed so that all wiring is
either in the conduit or behind the access panel.
If the convenience outlet transformer is connected to the
line side of the factory disconnect option, route the wires
through the web bushing located on the bottom of the
disconnect box. For the load side wiring to the factory
option disconnect, route the wires through the hole on the
right side of the disconnect. Be sure to create a drip loop
at least 6” long.
2.050HE501288
NOTICE/AVIS
Convenience Outlet Utilization
Maximum Intermittent Use 15 - Amps
Maximum Continuous Use 8 - Amps
Observe a 50% limit on the circuit
Loading above 8 - Amps
Utilisation de la prise utilitaire
Usage intermittent maximum 15 - Amps
Usage continu maximum 8 - Amps
Observez une limite de 50% sur le circuit
Chargement au-dessus de 8 - Amps
C10077
Fig. 37 -- Convenience Outlet Utilization Notice
Test the GFCI receptacle by pressing the TEST button on
the face of the receptacle to trip and open the receptacle.
Check for proper grounding wires and power line phasing
if the GFCI receptacle does not trip as required. Press the
RESET button to clear the tripped condition.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Using unit--mounted convenience outlets: Units with
unit--mounted convenience outlet circuits will often
require that two disconnects be opened to de--energize
all power to the unit. Treat all units as electrically
energized until the convenience outlet power is also
checked and de--energization is confirmed. Observe
National Electrical Code Article 210, Branch Circuits,
for use of convenience outlets.
!WARNING
Installing Weatherproof Cover: A weatherproof
while-in-use cover for the factory-installed convenience
outlets is now required by UL standards. This cover
cannot be factory-mounted due its depth; it must be
installed at unit installation. For shipment, the
convenience outlet is covered with a blank cover plate.
The weatherproof cover kit is shipped in the unit’s control
box. The kit includes the hinged cover, a backing plate
and gasket.
DISCONNECT ALL POWER TO UNIT AND
CONVENIENCE OUTLET. LOCK--OUT AND TAG--OUT
ALL POWER.
Remove the blank cover plate at the convenience outlet;
discard the blank cover.
Loosen the two screws at the GFCI duplex outlet, until
approximately 1/2-in (13 mm) under screw heads are
exposed. Press the gasket over the screw heads. Slip the
backing plate over the screw heads at the keyhole slots
and align with the gasket; tighten the two screws until
snug (do not over-tighten).
Mount the weatherproof cover to the backing plate as
shown in Fig. 38. Remove two slot fillers in the bottom of
the cover to permit service tool cords to exit the cover.
Check for full closing and latching.
581J*14