Bryant ZONE PERFECT PLUS ZONEBB2KIT User manual

TABLE OF CONTENTS Page
SAFETY CONSIDERATIONS...................................................1
INSTALLATION CONSIDERATIONS....................................1
INTRODUCTION.....................................................................1-2
INSTALLATION......................................................................2-8
• Check Equipment And Job Site..................................................2
• Component Location And Wiring Considerations.....................2
• Install Components...................................................................2-3
• Install Zone Dampers...............................................................3-4
• Install Barometric Bypass Damper.............................................5
• Install Leaving Air Temperature (LAT) Sensor.........................5
• Install Heat Pump Temperature (HPT) Sensor ..........................5
• Final Wiring..................................................................5-7, 19-25
• Understanding Sequence Of Operation...................................7-8
SYSTEM CONFIGURATION..............................................8-11
• Equipment Controller Configuration ..........................................8
• User Interface Configuration .................................................8-11
SYSTEM STARTUP AND CHECKOUT..........................11-12
• Enable Installer Setup Mode ...............................................11-12
• Check Damper And Sensor Operation .....................................12
• Quick Check Of Equipment Operation ....................................12
• Longer Check Of Equipment Operation...................................12
FINAL INSTALLATION SETTINGS...............................12-14
OPERATIONAL INFORMATION .........................................14
SMART SENSOR OPERATION.............................................15
QUICK START..........................................................................16
QUICK PROGRAMMING OF
COMFORT SCHEDULES ..................................................16-17
HOLD, OFF, OUT AND ALL ZONE.....................................17
TROUBLESHOOTING .......................................................17-18
NOTE: Read the entire instruction manual before starting the
installation.
This symbol →indicates a change since the last issue.
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause 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 informa-
tion or assistance. The qualified installer or agency must use
factory-authorized kits or accessories when modifying this prod-
uct. Refer to the individual instructions packaged with the kits or
accessories when installing.
Follow all safety codes and wear safety glasses. Have fire
extinguisher available. Read these instructions thoroughly and
follow all warnings or cautions attached to the unit. Consult local
and state building codes and Sheet Metal and Air Conditioning
National Association (SMACNA) for special installation require-
ments.
Recognize safety information. This is the safety-alert symbol .
When you see this symbol on the unit or in instructions and
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and CAU-
TION. These words are used with the safety-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 would result in minor personal
injury or product and property damage.
INSTALLATION CONSIDERATIONS
Before the actual installation of a zoning system can begin,
decisions need to be made to determine the number and location of
zones and sensors. This affects duct and damper selections. For
assistance with these decisions, consult the Design Guide available
from your distributor or branch.
This instruction covers the physical installation and start up of the
Zone Perfect Plus system. Use this instruction to guide the actual
installation process after all the air side decisions have been made.
1. Install User Interface and Remote Sensors in non-
condensing areas with ambients between 32°F and 120°F.
Install Dampers and Equipment Controller in non-
condensing areas with ambients between 32°F and 158°F.
2. Dampers may need to be vibration isolated to reduce noise.
3. TXV is required in air conditioning and heat pump appli-
cations.
4. Use separate isolated transformer to supply power to Zone
Perfect Plus System (40 va minimum, class 2, field sup-
plied).
5. Proper equipment and duct sizing are important in a zoned
system. Be sure to refer to the Design Guide for assistance
in making these selections.
CAUTION: TXV on indoor coil is required on all
zoning installations.
INTRODUCTION
The Zone Perfect Plus System allows air conditioning and heating
equipment to control temperatures and humidity in up to 8 distinct
spaces or Zones within a building. Each zone has independent
temperature settings.
The comfort temperature settings can change automatically
through the use of schedules. This allows Zone Perfect Plus to
change temperature settings in zones to reflect occupancy or usage.
For example, you can condition the bedrooms in a home from 5:00
PM through 7:00 AM or the kitchen from 3:00 PM through 6:00
PM. The Zone Perfect Plus System uses motorized air volume
control dampers (also called zone dampers) to regulate flow of
conditioned air into zones. In this manner Zone Perfect Plus can
selectively heat or cool certain portions of a building depending
upon space temperature requirements.
Each zone requires a motorized zone damper to control the air
supplied to it and a zone sensor to sense zone temperature. There
are 3 types of zone sensors available and they may be used in
combination:
• User Interface — Each installation has only 1 User Interface.
This is the command center for the entire system, and it will
typically be located in Zone 1 to sense and control the
installation instructions
ZONE PERFECT PLUS
Cancels: II ZONEKIT-0-7 II ZONEKIT-0-9
3-98
ZONEBB2KIT
ZONEBB4KIT
ZONEBB8KIT
—1—
→
→

temperature in this zone. If desired, a Remote Sensor may be
used to sense the Zone 1 temperature. This can give the
installer some flexibility in locating the User Interface to
another area.
• Remote Sensor — This is a temperature sensor only, having no
additional user inputs.
• Smart Sensor — Any zone other than Zone 1 may use a Smart
Sensor. It provides a display of zone temperature and means to
adjust the desired temperature in that zone only. It also displays
the outdoor temperature and indoor humidity.
Be sure to select the desired sensor type for each zone. Standard
kits include only Remote Sensors. Other types must be purchased
separately. Installation Instructions for Smart Sensors are included
with them.
INSTALLATION
I. CHECK EQUIPMENT AND JOB SITE
A. Inspect Equipment
File claim with shipping company, prior to installation, if shipment
is damaged or incomplete.
II. COMPONENT LOCATION AND WIRING
CONSIDERATIONS
WARNING: To prevent personal injury or possible
equipment damage disconnect power supply before rout-
ing wire.
All wiring must comply with national, local, and state codes.
A. Locating Equipment Controller
All wiring is run back to the Zone Perfect Plus Equipment
Controller. Select a location near the furnace or fan coil where
wiring from the User Interface, each Remote Sensor or Smart
Sensor, each damper actuator, and the equipment itself can come
together easily.
The Zone Perfect Plus System is approved for indoor use only and
should never be installed with any of its components exposed to
the elements. The Equipment Controller (and the zone dampers)
may be installed in any area where the temperature remains
between 32° and 158°F, and there is no condensation. The cover
must be installed to prevent damage from other sources. Do not
locate where it will be accessible to children. Avoid areas in which
the sound of relays energizing on the Equipment Controller may be
an annoyance. It may be mounted in either vertical or horizontal
position. Remember that wiring access is likely the most important
consideration.
CAUTION: To prevent possible damage to Equipment
Controller, do not mount on plenum, duct work, or flush
against furnace.
B. Locating User Interface
The User Interface is the command center for the Zone Perfect
Plus system. It should be located where it is easily accessible and
visible to home or business owner. It is also normally the Zone 1
sensor and as such needs to be located to properly measure the
temperature in Zone 1. If these 2 requirements conflict, a separate
Remote Sensor can be added for Zone 1. When Remote Sensor is
connected to Zone 1 terminals (OS1 and OS1C) of Equipment
Controller, the system automatically switches to using this sensor
for Zone 1 and ignores the sensor within the User Interface. This
arrangement allows User Interface to be located at any convenient
place within the home or business, and only the Zone 1 Remote
Sensor must be located in Zone 1.
NOTE: The User Interface also controls humidity functions. If
the User Interface is not used to control Zone 1 temperature, it
must still be located in a suitable area where humidity control will
not be affected.
C. Locating Sensors
For proper operation, each sensor must accurately measure the
temperature within its zone. Remember that zone sensors can be a
combination of 3 different types as described in introduction.
For accurate temperature measurement, the following guidelines
should be followed:
Sensor should be mounted:
• Approximately 5 ft (1.5m) from floor.
• Close to the center of its zone, preferably on an inside wall.
• On a section of wall without pipes or duct work.
Sensor should NOT be mounted:
• Close to a window, on an outside wall, or next to a door leading
to the outside.
• Where it will be exposed to direct light and heat from a lamp,
sun, fireplace, or other temperature-radiating object which may
cause a false reading.
• Close to or in direct airflow from supply registers and return-air
grilles.
• In areas with poor air circulation, such as behind a door or in
an alcove.
The Remote Sensor terminals are not marked for polarity because
polarity is not important.
D. Wiring Considerations
All wiring in the Zone Perfect Plus system may be unshielded.
Ordinary thermostat wire is ideal. Use 22 gage or larger for normal
wiring. Lengths over 100 ft should use 20 gage or larger wire.
Remote Sensors require only 2 conductors, but it is recommended
that at least 4 conductors be run. This will allow a Smart Sensor to
replace the Remote Sensor with no wiring changes at a later date.
The User Interface requires 4 conductors, each damper actuator
requires 3 conductors. The connection to equipment (furnace or
fan coil) could require as many as 8 conductors for a multi-stage
installation. The leaving air temperature (LAT), heat pump tem-
perature (HPT)—used with heat pumps only, and optional outdoor
air temperature (OAT) sensors require 2 conductors each. The
outdoor air temperature sensor may be able to be connected at the
outdoor unit using existing wiring. Refer to Installation Instruc-
tions included with the outdoor air temperature sensor.
Cables with excess conductors are acceptable. Cut off or fold back
and tape any unneeded conductors.
Plan the routing of wiring early to avoid possible problems later
on.
Remember all wires converge at the Equipment Controller, so its
location is important.
III. INSTALL COMPONENTS
A. Install Equipment Controller
The Equipment Controller is designed so that wires can enter it
from behind, above, or below. Plan wire routing before mounting
Controller.
1. Open doors or remove cover to access mounting holes.
Remove the 2 Zone system cover from the left side first.
2. Mount back plate to wall using screws and wall anchors
provided.
3. Level back plate and tighten screws.
B. Install User Interface
1. Open User Interface rear door (mounting base) to expose
mounting holes. Press back half of the right end inward and
then pull front and back halves apart at the right end to
open. The mounting base (the back half of the plastic) can
be separated from the User Interface body by snapping the
hinge apart.
—2—
→

a. Remove hinged cover by snapping apart its hinge.
b. Separate the main body from the mounting plate by
snapping its hinge apart.
c. Mount base before wiring and attaching remaining parts.
2. Route User Interface wires through large hole in mounting
base. Level mounting base against wall and mark wall
through 2 mounting holes. Any thermostat cable of 4 or
more conductors may be used. Shielded cable is not needed.
3. Drill two 3/16-in. holes in wall where marked.
4. Secure mounting base to wall with 2 screws and anchors
provided, making sure all wires extend through hole in
mounting base.
5. Adjust length and routing of each wire to reach proper
terminal and connector block on mounting base with 1/4 in.
of extra wire. Strip only 1/4 in. of insulation from each wire
to prevent adjacent wires from shorting together when
connected.
6. Match and connect 4 wires to proper terminals of the
connector blocks. Recommended connection is RED to V+,
WHITE to VG, BLUE or YELLOW to RS+, and GREEN
to RS-.
CAUTION: Improper wiring or installation may damage
the User Interface. Check to make sure wiring is correct
before proceeding with installation or turning on unit.
7. Push any excess wire into wall and against mounting base.
Seal hole in wall to prevent air leaks. Leaks can affect
operation.
8. Snap hinge back together.
9. Close User Interface assembly making sure pins on back of
circuit board align with sockets in connector.
C. Install Remote Sensors
1. Separate the sensor and mounting back plate (with provided
screws and anchors). Squeeze the top and bottom of the
cover together firmly by grasping the raised top and bottom
ridges. This will release the cover.
2. Pull a 2-conductor wire through hole on right-hand side.
3. Recommended connection is BLACK to either terminal,
WHITE to remaining terminal. Stranded or common bell
wire may be used. Lengths up to 1000 ft will contribute no
noticeable error.
4. Align sensor case with base plate then press firmly until
cover snaps into place.
For installation of other sensor types, refer to Installation Instruc-
tions provided for them.
IV. INSTALL ZONE DAMPERS
Proper selection and sizing of dampers is very important for proper
system operation. Be sure to consult the System Design Manual for
assistance in making these selections. Selection and sizing infor-
mation is not provided in this installation instruction.
If conditions exist for possible condensation, do not mount the
actuator beneath the duct.
If duct work requires multiple dampers for a single zone, up to 3
dampers may be wired in parallel. A multi-damper enabler is not
needed.
For retrofit applications, older type dampers with their original
actuators may be used under the following conditions:
1. A single damper may be connected directly to a Zone
Perfect Plus output.
2. If multiple dampers are needed for a single zone, a
multi-damper enabler must be used.
Older type dampers having an extended shaft and driven by a
crank arm may be fitted with the new DAMPACT actuators for
quieter operation. Mounting is straightforward. Be sure to use 45°
actuators (part No. DAMPACT45DEG) with round dampers and
90° actuators (part No. DAMPACT90DEG) with rectangular
dampers. When new actuators are fitted to older dampers, multi
damper enablers are not needed and up to 3 actuators can be
connected in parallel to a single Zone Perfect Plus output.
Zone dampers may be installed in any position.
Install dampers so that actuator is visible for inspection and
accessible in the event it would ever need to be serviced. The black
mark on the end of damper shaft represents position of damper
blade.
NOTE: Insulate damper using 1-1/2 in. insulation (check local
codes). In areas where excessive condensing may occur, carefully
insulate over the actuator assembly. Make sure insulation does not
interfere with operation of actuator.
Before insulating over the actuator, check for proper damper
operation. This will be done as part of the installer set up or may
be done by applying 24vac between COM and OPN to open
damper and between COM and CLS to close damper. (See Fig. 1.)
The damper will modulate counter-clockwise to open and clock-
wise to close (viewed from the actuator end).
If in an emergency it becomes necessary to force a damper open,
manually press in the red quick blade release button with one hand
and turn mounting hub to reposition damper shaft. Release button
to hold damper shaft in new position.
A. Round Metal Duct Work
1. Crimp end of branch duct.
2. Slip end of zone damper over end of duct work. Use
self-tapping sheet metal screw to secure. (See Fig. 2.)
3. Properly seal joint using duct tape, mastic, or other ap-
proved method. Do not allow mastic to come in contact
with actuator.
4. Insulate damper using 1-1/2 in. to 2-in. insulation. (Check
your local codes.)
NOTE: All zone dampers and duct work must be properly
supported according to local codes or SMACNA standards.
Fig. 1—Damper 24-vac Connections A95096
90
45
0
CLS COM OPN
ACTUATOR
HOUSING
MOUNTING
BRACKET
QUICK BLADE
RELEASE
BUTTON
(RED)
FIELD
INSTALLED
POWER WIRING
ANGULAR
ROTATION
STOPS
POSITION
INDICATOR
MOUNTING
HUB
AIRFLOW
AIRFLOW
—3—

B. Rectangular Metal Duct Work
1. Make connections using S-lock and drives. (See Fig. 3.)
2. Properly seal joint using duct tape, mastic, or other ap-
proved method. Do not allow mastic to come in contact
with actuator.
3. Insulate damper using 1-1/2 in. to 2-in. insulation. (Check
your local codes.) (See Fig. 4.)
NOTE: All zone dampers and duct work must be properly
supported according to local codes or SMACNA standards.
C. Round Flexible Duct Work
1. Slip 1 end of flexible duct work over 1 end of zone damper.
(See Fig. 5.)
2. Secure flexible duct to zone damper using SMACNA or
other approved method.
3. Properly seal joint using duct tape, mastic, or other ap-
proved method. Do not allow mastic to come in contact
with actuator.
4. Insulate damper using 1-1/2 in. to 2-in. insulation. (Check
your local codes.) (See Fig. 6.)
NOTE: All zone dampers and duct work must be properly
supported according to local codes or SMACNA standards.
D. Rectangular Fibrous Glass Duct Work
1. Insert 1 end of zone damper into 1 end of fibrous glass duct
work approximately 2 to 3 in. (See Fig. 7.)
2. Screw field-supplied screws and tabs into zone damper.
3. Properly seal joint using duct tape, mastic, or other ap-
proved method. Do not allow mastic to come in contact
with actuator.
4. Insulate damper using 1-1/2 in. to 2-in. insulation. (Check
your local codes.) (See Fig. 8.)
Fig. 2—Insulated Round Metal Duct Work A95130
/ ″STEEL STRAP
1 2
Fig. 3—Rectangular Metal Duct Work A92478
DRIVE ZONE
DAMPER
S-LOCK
SUPPLY
AIR DUCT
Fig. 4—Insulated Rectangular Metal Duct Work
A95131
1 / " TO 2"
INSULATION
12
Fig 5—Round Flexible Duct Work A95132
FLEXIBLE
DUCT ZONE
DAMPER
Fig. 6—Insulated Round Flexible Duct WorkA95133
/ ″STEEL STRAP
12
Fig. 7—Rectangular Fibrous Glass Duct Work
A92480
ZONE
DAMPER
2″TO 3″
FIBROUS
GLASS
DUCTWORK FIELD
SUPPLIED
SCREWS
Fig. 8—Insulated Rectangular Fibrous Glass
Duct Work
A95134
1 / ″TO 2″
INSULATION
12
—4—

V. INSTALL BAROMETRIC BYPASS DAMPER
NOTE: The barometric bypass damper is a critical part of Zone
Perfect Plus System for controlling noise at minimum airflow. A
barometric bypass should be installed unless the duct work and
indoor unit have been sized for use without a bypass.
The bypass should be installed according to local codes and
SMACNA standards. Be sure bypass is properly supported.
For proper installation, refer to Installation Instructions packaged
with barometric bypass.
CAUTION: Failure to properly install leaving air tem-
perature sensor can cause permanent damage to the
HVAC equipment.
VI. INSTALL LEAVING AIR TEMPERATURE (LAT)
SENSOR
Locate LAT sensor in main supply trunk after heating and cooling
coil and before bypass damper and first branch. The LAT sensor is
radiant shielded to prevent heat from affecting correct air tempera-
ture.
1. Drill a 1/4-in. hole at location in supply trunk where sensor
will be installed.
2. Insert sensor in hole and use as a template to mark the 2
mounting holes.
3. Drill two 1/16-in. holes to accept No. 6 screws through
pre-drilled holes in duct temperature sensor back plate.
4. Use 2 No. 6 sheet metal screws to mount duct temperature
sensor to unit.
5. Connect sensor to 2-conductor wire using provided wire
nuts. (See Fig. 9, 10, or 11 for connection to Equipment
Controller.)
VII. INSTALL HEAT PUMP TEMPERATURE (HPT)
SENSOR
The HPT sensor is required in all heat pump/fan coil installations.
It is not used in dual fuel(heat pump/furnace installation). It
measures the temperature of the air leaving the indoor coil. The
sensor is to be installed downstream of the indoor coil but before
the electric heaters. It can be installed through the wall of the fan
coil or may be located entirely inside the fan coil near the blower
inlet. Anchor firmly in place with cable ties so that it cannot
interfere with the blower wheel. (See Fig. 9, 10, or 11 for
connection to Equipment Controller.)
VIII. FINAL WIRING
Bring all Equipment Controller wires together at Equipment
Controller. Make all connections as indicated on Fig. 9 (for 2-zone
installations), Fig. 10 (for up to 4-zone installations), or Fig. 11
(for up to 8-zone installations).
Figures 15 through 38 show the connection between the Equip-
ment Controller and the HVAC equipment. Select proper diagram
for your equipment and connect accordingly. This connection will
require as few as 4 or as many as 7 conductors. See Table 4 to
identify the correct wiring figure.
NOTE: Table 4 and wiring diagrams appear in sequence near the
end of this document.
NOTE: It is good practice to mark each wire as the final
connection is made. This will preserve its identity if it is ever
disconnected.
→Fig. 9—2-Zone System Wiring Diagram A98085
O REVERSING VALVE COOL
B REVERSING VALVE HEAT
RH HEATING TRANSFORMER
RC COOLING TRANSFORMER
SEE
FIGURES FOR
EQUIPMENT
WIRING
DEFROST
JUMPER NEEDED
FOR HEAT PUMP
APPLICATIONS
24 VAC
ZONING
TRANSFORMER
C
RZ
DHUM DEHUMIDIFY
DEF DEFROST
HUM HUMIDIFY
G FAN
W2 HEAT STAGE 2
W1 HEAT STAGE 1
Y2 COMPRESSOR STAGE 2
Y1 COMPRESSOR STAGE 1
HPT
HPTC
LAT
LATC
OATC
OAT OUTDOOR AIR
TEMP SENSOR
LEAVING AIR
TEMP SENSOR
HEAT PUMP
TEMP SENSOR
CLS1
COM1
OPN1
CLS2
DAMPERS
OPTION
SWITCHES
NOTE SWITCH
#8 IS AT TOP
CLS_
COM_
OPN_
8
1
=
=
=
CLOSE
COMMON = 24VAC FROM RZ
OPEN
COM2
OPN2
ZONE 1
DAMPER
ZONE 2
DAMPER
DAMPER
FUSE
3A
D20
(LED)
2 ZONE EQUIPMENT CONTROLLER
NOTES: *= OPTIONAL COMPONENTS
= INSTALLING ZONE 1 REMOTE SENSOR AT OS1AND OS1C WILL OVERRIDE 
 TEMPERATURE SENSOR ON USER INTERFACE
 = COMMUNICATION BUS ARE IN PARALLEL WITH EACH OTHER
 (EITHER CONNECTOR CAN BE USED)
†
†
V+
USER INTERFACE
RS+
V+
RS+
RS-
VG
V+
RS+
RS-
VG
OS1
OS1C
ZS2
ZS2C
RS-
VG
VG
OPTIONAL 
ZONE 1
SENSOR
REMOTE
SENSORS ZONE 2
SENSOR
COMMUNICATION
BUS
COMMUNICATION
BUS
V+
SMART SENSORS*
RS+
RS-
WHITE
RED
BLUE/YELLOW
GREEN


WHITE
RED
BLUE/YELLOW
GREEN
†
†
†
—5—
→
→
→
→

Separable RC and RH connections are provided for systems with
separate transformers for heating and cooling. To accommodate
separate transformers, cut jumper R12 on the Equipment Control-
ler board. It is located just below and to the right of the RC and RH
connections. As shipped, the R12 jumper ties RC and RH
terminals together so either can be used in single transformer
application.
When installing a 24-vac humidifer, connect it directly to the
HUM terminal on Equipment Controller, and C terminal of indoor
equipment. Do not use an external humidstat. All necessary control
is provided by Zone Perfect Plus.
When using an FK series fan coil, connect DHUM (dehumidify)
output directly to DH terminal of fan coil. This output may also
drive a relay (connected with other side to C) which can be
connected to reduce fan speed in other types of blowers. The relay
will be energized when humidity is normal and will deenergize
when humidity is high, calling for reduced fan speed.
An LAT sensor must be connected in all systems. Both LAT and
HPT sensors must be connected in heat pump/fan coil systems.
WIRING CONSIDERATIONS
Zone Perfect Plus treats all furnaces as if they were 2-stage. For
single stage equipment, connect to W1. The same holds true for
auxiliary heat in fan coils. (Refer to Fig. 15-38.)
With any 2-stage furnace, configure the furnace so that low fire is
controlled by W1 and high fire is controlled by W1 and W2
together. This means the internal algorithm is to be disabled. See
furnace instructions.
Some variable speed furnaces have a "zoning" setting. If such a
setting exists, it should be turned on. It forces the furnace to adjust
its airflow more frequently to accommodate the effects of damper
movement. See furnace instructions.
All 2-speed air conditioners and heat pumps need to be configured
so that Y1 controls low speed and Y1 and Y2 together control high
speed in both heating and cooling. This is usually done by
selecting the "zoning" position of the stage 2 latch pot. See 2-speed
equipment instructions.
In 2-speed dual fuel applications (2-speed heat pump and furnace),
do not set the furnace interface jumper on the heat pump to ON,
→Fig. 10—4-Zone System Wiring Diagram A98086
O REVERSING VALVE COOL
B REVERSING VALVE HEAT
RH HEATING TRANSFORMER
RC COOLING TRANSFORMER
DEF DEFROST
DHUM DEHUMIDIFY
SEE
FIGURES FOR
EQUIPMENT
WIRING
24 VAC ZONING
TRANSFORMER C
RZ
4 ZONE EQUIPMENT CONTROLLER
HUM HUMIDIFY
G FAN
W2 HEAT STAGE 2
W1 HEAT STAGE 1
Y2 COMPRESSOR STAGE 2
Y1 COMPRESSOR STAGE 1
HPTC
LAT
LATC
HPT
OAT
OATC
V+
RS+
RS-
VG
DAMPERS
8
1
CLS_
COM_
OPN_
=
=
=
CLOSE
COMMON = 24VAC FROM RZ
OPEN
OUTDOOR AIR
TEMP SENSOR
LEAVING AIR
TEMP SENSOR
HEAT PUMP
TEMP SENSOR
CLS3
COM3
OPN3
CLS4
COM4
OPN4
ZONE 3
DAMPER
ZONE 4
DAMPER
CLS1
COM1
OPN1
CLS2
COM2
OPN2
ZONE 1
DAMPER
ZONE 2
DAMPER
JUMPER NEEDED
FOR HEAT PUMP
APPLICATIONS DAMPER
FUSE
3A
OPTION
SWITCHES
NOTE SWITCH
#8 IS AT TOP
D20
(LED)
NOTES: *= OPTIONAL COMPONENTS
= INSTALLING ZONE 1 REMOTE SENSOR AT OS1AND OS1C WILL OVERRIDE 
 TEMPERATURE SENSOR ON USER INTERFACE
 = COMMUNICATION BUS ARE IN PARALLEL WITH EACH OTHER
 (EITHER CONNECTOR CAN BE USED)
DEFROST
†
†
REMOTE
SENSORS
COMMUNICATION
BUS
ZONE 3
SENSOR
ZONE 4
SENSOR
OPTIONAL
ZONE 1
SENSOR
ZONE 2
SENSOR
V+
COMMUNICATION
BUS
RS+
RS-
VG
OS1
OS1C
ZS2
ZS2C
ZS3
ZS3C
ZS4
ZS4C
V+
USER INTERFACE
RS+
RS-
VG
VG
V+
SMART SENSORS*
RS+
RS-
WHITE
RED
BLUE/YELLOW
GREEN
WHITE
RED
BLUE/YELLOW
GREEN
†
†
†
—6—
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even though its instructions say to do so. The necessary interlock-
ing to keep both the heat pump and furnace from operating at the
same time is done by Zone Perfect Plus.
The special 3-stage auxiliary heat feature of Bryant thermostats is
incorporated into Zone Perfect Plus. This requires an FK type fan
coil and specific heater packages with a single-speed heat pump.
See FK fan coil Installation Instructions.
IX. UNDERSTANDING SEQUENCE OF OPERATION
A. Temperature Set Points
The Zone Perfect Plus System uses 2 temperature set points for
each zone, the higher for cooling and the lower for heating. A
minimum difference of 2°F is enforced between the 2 set points.
Each set point may be manually adjusted or controlled by a
programmed time schedule established by the home or business
owner.
B. Heating and Cooling Comfort Set Points
If space temperature is between heating and cooling set points for
the zone, then the zone is said to be "satisfied" with respect to
temperatures. When a zone is satisfied, no heating or cooling is
required. When all zones are satisfied, there is no demand and the
equipment is turned off. For example, if cooling set point is 76°F
and heating set point is 72°F, then a space temperature of 73°F is
assumed to be satisfactory and no heating or cooling of the zone is
required.
If space temperature in a zone falls below heating set point, then
that zone needs to have heat added to zone which will raise space
temperature back to heating set point. For example, if heating set
point is 72°F and space temperature is 70°F, then space tempera-
ture must be raised 2°F in order for zone to be satisfied. In this
case, temperature "heating demand" for zone is 2°F. (72° minus
70°F.)
Otherwise, if space temperature in a zone rises above cooling set
point, then that zone needs to have heat removed from zone which
will lower space temperature back to cooling set point. For
example, if cooling set point is 76°F and space temperature is
77°F, space temperature must be lowered 1°F in order for zone to
be satisfied. In this case, "cooling demand" for zone is 1°F. (77°
minus 76°F.)
C. Out Feature
A new feature called OUT can be selected via the OUT button.
When this selection is made, the system is being told that the
→Fig. 11—8-Zone System Wiring Diagram A98087
O REVERSING VALVE COOL
B REVERSING VALVE HEAT
RH HEATING TRANSFORMER
DHUM DEHUMIDIFY
DEF DEFROST
RC COOLING TRANSFORMER
SEE
FIGURES FOR
EQUIPMENT
WIRING
24 VAC ZONING
TRANSFORMER C
RZ
8 ZONE EQUIPMENT CONTROLLER
HUM HUMIDIFY
G FAN
W2 HEAT STAGE 2
W1 HEAT STAGE 1
Y2 COMPRESSOR STAGE 2
Y1 COMPRESSOR STAGE 1
CLS7
COM7
OPN7
CLS8
HPTC
LAT
LATC
HPT
OAT
OATC
DAMPERS
8
1
CLS_
COM_
OPN_
=
=
=
CLOSE
COMMON = 24VAC FROM RZ
OPEN
COM8
OPN8
ZONE 7
DAMPER
ZONE 8
DAMPER
OUTDOOR AIR
TEMP SENSOR
LEAVING AIR
TEMP SENSOR
HEAT PUMP
TEMP SENSOR
CLS5
COM5
OPN5
CLS6
COM6
OPN6
ZONE 5
DAMPER
ZONE 6
DAMPER
CLS3
COM3
OPN3
CLS4
COM4
OPN4
ZONE 3
DAMPER
ZONE 4
DAMPER
CLS1
COM1
OPN1
CLS2
COM2
OPN2
ZONE 1
DAMPER
ZONE 2
DAMPER
JUMPER NEEDED
FOR HEAT PUMP
APPLICATIONS DAMPER
FUSE
3A
OPTION
SWITCHES
NOTE SWITCH
#8 IS AT TOP
D20
(LED)
DEFROST
NOTES: *= OPTIONAL COMPONENTS
= INSTALLING ZONE 1 REMOTE SENSOR AT OS1AND OS1C WILL OVERRIDE 
 TEMPERATURE SENSOR ON USER INTERFACE
 = COMMUNICATION BUS ARE IN PARALLEL WITH EACH OTHER 
 (EITHER CONNECTOR CAN BE USED)
†
†
V+
RS+
RS-
VG
REMOTE
SENSORS
COMMUNICATION
BUS
ZONE 3
SENSOR
ZONE 4
SENSOR
OPTIONAL 
ZONE 1
SENSOR
ZONE 2
SENSOR
V+
COMMUNICATION
BUS
RS+
RS-
VG
OS1
OS1C
ZS2
ZS2C
ZS3
ZS3C
ZS4
ZS4C
ZONE 7
SENSOR
ZONE 8
SENSOR
ZONE 5
SENSOR
ZONE 6
SENSOR
ZS5
ZS5C
ZS6
ZS6C
ZS7
ZS7C
ZS8
ZS8C
V+
USER INTERFACE
RS+
RS-
VG
VG
V+
SMART SENSORS*
RS+
RS-
WHITE
RED
BLUE/YELLOW
GREEN
WHITE
RED
BLUE/YELLOW
GREEN
†
†
†
—7—
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selected zone is unoccupied. It will normally supply no condition-
ing to an OUT zone. If zone temperature exceeds 85°F or goes
below 60°F, conditioning will be supplied to maintain the zone
within these limits.
The system will also use OUT zones to relieve the equipment
under overload conditions. If the total demand from all zones is
such that airflow is insufficient (or bypassing is excessive) this
condition will be sensed by the LAT or HPT temperature sensors.
When these temperatures begin to approach their limits, Zone
Perfect Plus will first begin to open dampers in the OUT zones to
relieve overload condition. The system will also monitor tempera-
tures in the OUT zone and never allow them to become cooler than
the coolest zone (in cooling) or warmer than the warmest zone (in
heating). This prevents over conditioning of OUT zones while still
using them to relieve an overload condition.
Zones can be set to OUT at any time or OUT can be programmed
like any other temperature. The home or business owner can then
program OUT for times that the zone is not likely to be occupied.
When OUT is selected, both heating and cooling set points are
replaced by "--."
D. Sequence Of Events For Normal Heating Or Cooling
Cycle
Given comfort set points and space temperature for zones within
system, Zone Perfect Plus will determine if active heating or
cooling is required. If so, Zone Perfect Plus will perform the
following:
1. Fully open 1 or more dampers and position others so that all
zones will be conditioned back to their set points at the
same time.
2. Turn on equipment.
3. While equipment is on, continually make small adjustments
in damper positions so that all zones converge on their set
points at the same time.
4. Turn off equipment when all zones reach their set points.
5. Leave dampers at their final positions while equipment is
off.
6. If equipment does not run for 2 hours, it will fully open all
dampers.
This is the basic sequence of operation for the Zone Perfect Plus
system. The actual control of dampers, HVAC equipment, and
system fan will change with the configuration of system. Depend-
ing upon configuration, Zone Perfect Plus can control heat pumps,
furnaces, and dual fuel applications.
E. Control Strategy for Heating / Cooling Stages
The Zone Perfect Plus system will attempt to minimize use of
additional stages of heating or cooling equipment.
Zone Perfect Plus controls multi-stage equipment in response to
the level of demand and the number of zones with demand. In
general, it tries to satisfy demand with a minimum number of
stages. In heat pump systems, where auxiliary heat is usually
expensive, a small extra demand is required to bring on auxiliary
heat. This acts to prevent the unnecessary use of auxiliary heat. In
addition, when an outdoor sensor is attached, the system can be set
to lock out auxiliary heat for outdoor temperatures above an
installer selectable value. This will be covered under System
Configuration.
SYSTEM CONFIGURATION
Zone Perfect Plus must be configured to match the type of
equipment connected to it. In addition, there are several choices of
configuration based on how the user wants the system to operate.
Configuration is done in 2 parts. One is the setting of 8 DIP
switches on the Equipment Controller. The second is a group of 11
software selections made via User Interface. Follow the sequence
below for easy setup.
Configuration of the Equipment Controller is done first with the
power off. Then power is applied and the User Interface is
configured with power on.
NOTE: A DIP switch module is oriented with switch 1 at the
bottom and switch 8 at the top. Refer to Fig. 12 for switch
orientation and labels.
I. EQUIPMENT CONTROLLER CONFIGURATION
Located near bottom of Equipment Controller circuit board, there
is an 8 section DIP switch. The use of each switch is described
below. Using a pen or pencil, set each switch to its proper state.
ON is to the left and is the factory setting. OFF is to the right. Fig.
12 is a pictorial drawing of this selector switch.
Switch 1—Selects AC or HP.
ON—Selects AC.
OFF—Selects HP.
Switch 2—Selects single- or 2-speed compressor.
ON—Selects single speed.
OFF—Selects 2 speed.
Switch 3—Selects 3-stage electric heat. Equipment must include
FK fan coil with single-speed heat pump and selected heater with
2:1 ratio element size.
ON—Normal 1- or 2-stage electric heat.
OFF—Special 3-stage electric heat.
Switch 4—Selects Smart Recovery in both heating and cooling.
The system starts adjusting temperature 1-1/2-hours earlier than
selected recovery time so it will arrive at new temperature at
selected time.
ON—Smart recovery.
OFF—Normal recovery.
Switch 5—Zone system address selection. When 2 zoning systems
are connected together, the second system should be set to OFF.
ON—Normal single system.
OFF—Address selection for second zoning system.
Switch 6—Select installer test mode to assist in checking out the
system. See Starting System.
ON—Selects normal operation.
OFF—Selects installer test mode.
Switch 7—Disables cooling when outdoor temperature is below
55°F. Requires outdoor air temperature sensor.
ON—Cooling enabled at all temperatures.
OFF—Low temperature cooling disabled.
Switch 8—Dual fuel selection for systems with heat pump and
furnace.
ON—Selects normal system.
OFF—Selects dual fuel system.
II. USER INTERFACE CONFIGURATION
The User Interface is configured via a group of selections made
through the keypad in a special configuration mode. Before the
equipment is operated, the system must be properly configured.
Make sure this step is not left out.
Before turning power on to the zoning system, disable the system
equipment itself by either turning off its main power or by
temporarily disconnecting its 24-vac power at the RC and RH
terminals of the Equipment Controller. This will allow the zoning
system only to operate. Go through the following steps with the
equipment power off.
By this time 8 DIP switches on the Equipment Controller should
be properly set.
Turn on power to the zoning system by applying power to its
24-vac transformer. When power is first applied to Zone Perfect
Plus the Equipment Controller immediately begins positioning all
dampers to fully open by running each damper motor in the open
direction for 15 sec. This is done in succession, 2 zones at a time,
starting with Zone 1. The time required will be 15 sec for each pair
of zones. Remember that the system automatically determines the
number of zones by detecting the presence of zone sensors.
—8—
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At power up the User Interface displays all segments for a few sec.
This is followed by the selected system type for an additional few
sec. The system type shows as follows:
1. AC—1-Speed Air Conditioner
2. HP—1-Speed Heat Pump
3. A2—2-Speed Air Conditioner
4. H2—2-Speed Heat Pump
5. AS—1 or 2-Speed Air Conditioner with 3-Stage Auxiliary
Heat
6. HS—1 or 2-Speed Heat Pump with 3-Stage Auxiliary Heat
7. dF—Dual Fuel with 1-Speed Heat Pump
8. d2—Dual Fuel with 2-Speed Heat Pump
Power-on check of the User Interface itself can be done by
separating the User Interface from its backplate and then recon-
necting it by attaching the 2 parts. This will allow observation of
the User Interface at power up.
Several installer select options are set using the User Interface
keypad.
These configuration options, like DIP switch settings, are intended
to be selected at installation and are normally not modified by
home or business owner. These options are not discussed in the
Owner’s Guide and therefore must be made as part of the
installation. A special procedure allows entry into configuration
mode. Zone Perfect Plus will automatically exit this mode if no
button is pressed for 3 minutes. While in the configuration mode,
11 configuration choices can be made. In addition, LAT and HPT
temperatures as well as all damper positions can be viewed. A brief
description of each is given below, followed by instructions on
how to make the selection.
A. To Enter the Configuration Mode:
Press and hold FAN button for approximately 10 sec until room
temperature and set point displays change to 2 numbers. You are
now in the configuration mode.
Option 1—Clean filter timer
Option 2—English/Metric
Option 3—Fan ON with W
Option 4—User Interface address
Option 5—Disable zoning
Option 6—Ignore LAT and HPT safeties
Option 7—Variable speed blower present
Option 8—Select LAT shutdown temperature
Option 9—Auxiliary heat lockout
Option 10—Dual fuel crossover temperature
Option 11—Auto changeover timer
Option 12 to 18—Not available
Option 19—Display HPT temperature reading
Option 20—Display LAT temperature reading
Option 21 and up—Display zone damper positions.
NOTE: If END button is pressed or if no button is pressed for 180
sec, Zone Perfect Plus will exit configuration mode and return to
normal operation. To re-enter configuration mode, FAN button
must be pressed and held for 10 sec again.
While in configuration mode, the large display shows the selection
which has been made and the smaller display (COOL set point
display) shows current option number. One of these will be
flashing.
The up and down buttons are used both to move between available
options and to make selection for each option. When option
number (small display) is flashing, the up and down buttons adjust
it, moving between available option numbers. After desired option
number has been selected, press SET TIME/TEMP button. The
large display will now flash, indicating that the up and down
buttons now control available choices within that option. Each
press of the SET TIME/TEMP button switches between available
option (small display) and available selections within each option
(large display).
Available options and available selections for each are described
below.
OPTION 1—CLEAN FILTER TIMER
Select hours of blower operation (heating, cooling, or fan) before
CLEAN FILTER icon is displayed. With OFF selected, icon will
never come on, disabling this feature. Time selection can be from
400 to 3600 hours by selecting numbers 1 through 9. (Time is
400X number selected.) Factory default is 2 (800 hours). Recom-
mended selections are: disposable filter—400 to 800 hours, media
filter—1200 to 1600 hours, or electronic air cleaner—1600 to 2400
hours of blower operation.
TO SELECT or ADJUST:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 1 on flashing small
display.
3. Press SET TIME/TEMP button once to flash large display.
Factory default is 2.
4. Use up and down buttons to alternate between OF (off), 1,
2, 3, 4, 5, 6, 7, 8, or 9.
→Fig. 12—DIP Switch Settings A98183
NORM
NORM
NORM
NORM
SMART
RECOVERY
1 SPD
AC
ON
(CLOSED)
NORM
DISABLE LOW
TEMP COOLING
INSTALLER TEST MODE
ADDRESS 11
3 STG HEAT
NORM
2 SPD
HP
OFF
(OPEN)
DUAL FUEL
7
6
5
3
4
2
1
8
Switch factory 
default is closed.
NOTE:
—9—
→
→
→

5. Press SET TIME/TEMP button to flash 1 on small display.
Up and down buttons now move between option choices.
Or press END button to exit configuration mode.
OPTION 2—ENGLISH/METRIC
Select between Fahrenheit or Celsius operation. Factory default is
Fahrenheit.
TO SELECT:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 2 on flashing small
display.
3. Press SET TIME/TEMP button once to flash large display.
4. Use up or down buttons to alternate between F and C.
5. Press SET TIME/TEMP button again to flash 2 on small
display, or press END button to exit configuration mode.
OPTION 3—FAN ON WITH W
This selection determines whether the G (fan) output is to be ON
or OFF when any W (furnace or strip heat) output is ON. Most
furnaces and fan coils manage their own blowers and do not
require a separate G signal. For these applications, select OFF.
Some auxiliary heaters require a separate G signal to turn on the
blower. In this case, select ON. Factory default is OFF.
TO SELECT:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 3 on flashing small
display.
3. Press SET TIME/TEMP button once to flash large display.
4. Use up and down buttons to alternate between OF (off) and
ON.
5. Press SET TIME/TEMP button again to flash 3 on small
display, or press END button to exit configuration mode.
OPTION 4—USER INTERFACE ADDRESS
When 2 Zone Perfect Plus systems are connected together on the
same bus, each must have a different address. Address 01 is used
for single systems. Address 11 is selected for second User
Interface when present. Factory default is 01.
TO SELECT:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 4 on flashing small
display.
3. Press SET TIME/TEMP button once to flash large display.
4. Use up and down buttons to alternate between 01 and 11.
5. Press SET TIME/TEMP button again to flash 4 on small
display, or press END button to exit configuration mode.
OPTION 5—DISABLE ZONING
When this option is selected, all dampers go fully open and zone
1 sensor (normally User Interface itself) becomes the sensor for the
entire home or business. In effect, the zoning system disappears
and is replaced by a single thermostat. In this mode, the ZONE X
where X is the zone number is not displayed. Factory default is OF
(off), zoning enabled. This option is used to check out the system
equipment. The User Interface acts as normal thermostat.
TO SELECT:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 5 on flashing small
display.
3. Press SET TIME/TEMP button once to flash large display.
4. Use up and down buttons to alternate between ON and OF
(off). Remember: OF (off) enables zoning, ON disables
zoning.
5. Press SET TIME/TEMP button again to flash 5 on small
display, or press END button to exit configuration mode.
OPTION 6—IGNORE LAT AND HPT TEMPERATURES
CAUTION: Leaving this selection ON can cause perma-
nent damage to HVAC equipment
This option, when ON, tells the system to ignore the LAT and HPT
temperature information. It should only be used for troubleshoot-
ing and to allow temporary operation with a failed or missing
sensor until the sensor can be replaced. Factory default is OF (off).
TO SELECT:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 6 on flashing small
display.
3. Press SET TIME/TEMP button once to flash large display.
4. Use up and down buttons to alternate between ON and OF
(off). Remember ON is for temporary use only.
5. Press SET TIME/TEMP button again to flash 6 on small
display, or press END button to exit configuration mode.
OPTION 7—VARIABLE SPEED (ICM) OR PSC BLOWER
If the furnace or fan coil contains a variable speed ICM blower, set
this option ON. For normal (PSC) blowers, set to OF (off). This
selection enables the system to use the special dehumidification
features available only with the ICM blower. Factory default is OF
(off).
TO SELECT:
1. Enter configuration mode (if not already there).
2. Use up and down buttons to display 7 on flashing small
display.
3. Press SET TIME/TEMP button once to flash large display.
4. Use up and down buttons to alternate between OF (off) and
ON.
5. Press SET TIME/TEMP button again to flash 7 on small
display, or press END to exit configuration mode.
OPTION 8—LEAVING AIR TEMPERATURE (LAT) SHUT-
DOWN TEMPERATURE
This option selects maximum allowable LAT in furnace and fan
coil auxiliary heat installations. Equipment will be turned off if its
LAT exceeds selected value. Values are 35, 40, 45, 50, 55, 60, 65,
70, or 75 corresponding to temperatures of 135° to 175°F. As LAT
nears selected limit, actions are taken by the system to try to reduce
the LAT. These include staging down multi-stage equipment and
limited conditioning of OUT zones.
When the LAT temperature approaches its limit, OUT zone
dampers progressively open, allowing more airflow into the duct
system. The temperatures of the OUT zones are also monitored. As
any OUT zone approaches the temperature of the most conditioned
zone, its damper closes again, preventing the OUT zone from
being over conditioned. If OUT zones are not available and LAT
temperature cannot be maintained at a safe value, the system will
shut down the equipment when the LAT temperature reaches its
limit. With earlier Comfort Zone systems, temperature set here
was temperature where actions were started. Shutdown tempera-
ture was 20°F higher than selected temperature. Therefore a setting
of 155°F on Zone Perfect is equivalent to 175°F on Zone Perfect
Plus.
HPT temperature limit for shut down is fixed at 115°F and cooling
LAT temperature limit for shut down is fixed at 40°F (down from
Zone Perfect which was 45°F.)
Fan coils vary greatly in their LAT (leaving air temperature)
because of variations in the size of their heaters and their air flow.
This makes proper selection of LAT limits difficult. A value of 50
—10—
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