Trane BAY24VRPAC52DC User manual

18-HD68D1-10
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property and is to remain with this unit.
These instructions do not cover all variations in systems or provide for every possible contingency to be met in connection with
the installation. Should further information be desired or should particular problems arise which are not covered sufficiently for the
purchaser’s purposes, the matter should be referred to your installing dealer or local distributor.
Table of Contents
Section 1. Safety ..............................................1
Section 2. General Information ................2
Section 3. Installation....................................3
Section 4. Terminal Locations and ID ...6
Section 5. Field Wiring Diagrams............8
Section 6. LED Indicators...........................25
Section 7. Troubleshooting........................25
▲WARNING
!
This information is intended for use by individuals possess-
ing adequate backgrounds of electrical and mechanical
experience. Any attempt to repair a central air conditioning
product may result in personal injury and/or property dam-
age. The manufacturer or seller cannot be responsible for
the interpretation of this information, nor can it assume any
liability in connection with its use.
▲WARNING
!
LIVE ELECTRICAL COMPONENTS!
During installation, testing, servicing, and troubleshoot-
ing of this product, it may be necessary to work with live
electrical components. Failure to follow all electrical safety
precautions when exposed to live electrical components
could result in death or serious injury.
11/17
Installation Guide
Other Installation Guides may be necessary, based on system configuration.
A list of other system components is shown below.
1 Control (required) *ZONE950, *ZON1050 or *CONT850
2Relay Panel For use with Communicating Controls and 24V
or Hybrid Systems
3Zone Panel (optional)
4Zone Sensor with Display (optional)
5Zone Sensor (optional)
6Zone Dampers (optional)
Relay Panel
BAY24VRPAC52DC
* A or T
Section 1. Safety

Installation Guide
2 18-HD68D1-10
2.4 Specifications
Specification Description
Product Model: BAY24VRPAC52DC
Product: Relay Panel for use with 24V indoor systems
Size: 8.0” width x 9.3” height x 1.9” depth
Storage Temperature: -40° to 175°F, 5% - 95% RH non-condensing
Operating Temperature: -40° to 150°F, 5% - 95% RH non-condensing
Input Power: 24 VAC from HVAC System (Range: 18-32 VAC)
Power Consumption: 4VA* (See the following table for system transformer sizing guidelines.)
Wire usage: Minimum 18 gauge NEC approved control wiring
HVAC System Type Compatible: Standard (gas/electric), Heat Pump, Dual Fuel
Multistage System Compatible: Standard HVAC Systems: 3-stage heating, 2-stage cooling
Heat Pump Systems: 5-stage heating (2-compressor, 3 aux heat), 2-stage cooling
LEDs: 11 green, 1 amber
Communications: 12 VDC
AUX Contacts: Dry contacts, 18–30 VAC, 2A max
2.3 Optional Accessories
Sensor Description
ZZSENSAL0400AA Indoor Temperature Sensor
BAYSEN01ATEMPA Outdoor Temperature Sensor
2.2 Contents in Box
The following parts are included in product model
BAY24VRPAC52DC:
1 - Relay Panel cover
1 - Relay Panel base
4 - Mounting screws/anchors
4 - Wire ties
1 - Installation Guide
Aux2
Relay Panel
Bit Master
Comm
HVACSystem
Sensors
Thermostat
and Indoor Unit
Outdoor Remote
Data Hot Com
D R B
Indoor
RS
RS
ODT
ODT
24Vac
Only 24 Vac
Only 24 Vac
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
DualFuel
Switch
DUAL
Relay Panel
2.1 Overview
The Relay Panel is a wall mounted low voltage
panel that enables communicating controls to
operate with 24 VAC HVAC equipment. Only three
wires are required from the control to the Relay
Panel.
This Relay Panel controls the operation of heating,
cooling, heat pump and dual fuel systems.
For specific wiring applications, see Field Wiring
Diagrams.
*A or T
Relay Panel
Section 2. General Information

RELAY PANEL
18-HD68D1-10 3
Unit Location Considerations
The unit’s rugged design allows installation in closet, attic or other non-condensing locations free from obstruc-
tions or other hazards.
Remove cover by grasping at edges and gently
pulling the cover straight towards you. It should
release without much effort.
Aux2
Relay Panel
Bit Master
Comm
HVAC System
Sensors
Thermostat
and Indoor Unit
Outdoor Remote
Data Hot Com
D R B
Indoor
RS
RS
ODT
ODT
24 Vac
Only 24 Vac
Only 24 Vac
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
Dual Fuel
Switch
DUAL
Aux2
Relay Panel
Bitmaster
Comm
HVAC System
Sensors
Thermostat
and Indoor Unit
Outdoor Remote
Data Hot Com
D R B
Indoor
RS
RS
ODT
ODT
24 Vac
Only 24Vac
Only 24Vac
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
Dual Fuel
Switch
DUAL
Relay Panel
Section 3. Installation
Remove Cover
Mark Mounting Location
1
2
Mark four holes on the wall using the base as a
template. A level may be used to ensure accuracy.
Indoor Unit Type
Comm
Furnace
Comm
Air Handler
24V
Furnace
24V
Air Handler
OD Unit Type Minimum Indoor 24V Control Power
Transformer Size, VA*
Communicating Heat Pump 35 35 See Below
Communicating Air Conditioner 35 35
24Volt-Controlled Single Stage Heat Pump 35 40 35 40
24Volt-Controlled Single Stage Air Conditioner 35 40 35 40
24Volt-Controlled 2-Stage Single Compressor Heat Pump 65 75 65 75
24Volt-Controlled 2-Stage Single Compressor Air Conditioner 50 40 50 40
24Volt-Controlled 2-Stage Dual Compressor Heat Pump 50 75 50 75
24Volt-Controlled 2-Stage Dual Compressor Air Conditioner 35 40 35 40
*Note: The VA rating of all 24V field-installed accessories must be added to the above for sizing indoor unit control transformers or the accessories
must be powered separately.
2.5 System Transformer Sizing Guidelines

Installation Guide
4 18-HD68D1-10
CAUTION: EQUIPMENT DAMAGE HAZARD - Improper
wiring can lead to equipment damage. Follow the terminal
connection information carefully to ensure the control is
wired properly. After wires are secure, bare wires
MUST NOT touch each other. See the Field Wiring Dia-
grams for specific system applications.
▲
CAUTION
!
Attach base to wall using four screws provided. Do
not overtighten.
Wires may enter the Relay Panel through openings
on each corner and at the center of each side.
Necessary wire lengths should be considered when
determining entry points.
▲WARNING
!
LIVE ELECTRICAL COMPONENTS!
During installation, testing, servicing, and troubleshoot-
ing of this product, it may be necessary to work with live
electrical components. Failure to follow all electrical safety
precautions when exposed to live electrical components
could result in death or serious injury.
Aux2
Relay Panel
Bitmaster
Comm
HVAC System
Sensors
Thermostat
Outdoor Remote
Data Hot Com
D R B
Indoor
RS
RS
ODT
ODT
24 Vac
Only 24 Vac
Only 24 Va
c
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
Dual Fuel
Switch
DUAL
Relay Panel
1/8” for screws
into studs
3/16” for drywall
anchors
DRILL HOLES
Wires may
enter at
any of 8
locations
Mounting to studs: Drill 1/8” pilot holes in the four
locations marked above.
Mounting to drywall:
If mounting to drywall with no studs behind it, en-
large pilot holes to 3/16” for anchors (included with
the relay panel).
Gently tap anchors into the holes.
Mount Panel
General Wiring Information
3
4

RELAY PANEL
18-HD68D1-10 5
Using 1/8” blade screwdriver, attach all wires se-
curely to the proper terminals on the Relay Panel.
Refer to the following section for detailed terminal
information.
(See the Field Wiring Diagrams section for com-
mon system configurations.)
Secure all wires with the supplied wire ties to en-
sure that wires are kept in place and not strained.
Run wires within the recessed wire “raceway”. Be
sure there is ample length to reach the connectors.
Bit
m
Co
HVAC System
Therm
o
s
and Indo
o
Data Hot
D R
B
KPW
M
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
Aux2
Relay Panel
Fault
Comm
Bit Master
HVAC System
Sensors
Thermostat
Outdoor Remote
Data Hot Com
DRB
Indoor
RS
RS
ODT
ODT
24 Vac Only 24 Vac
Only 24 Vac
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
Dual Fuel
Switch
DUAL
Aux2
Relay Panel
Fault
Comm
Bit Master
HVAC System
Sensors
Thermostat
Outdoor Remote
Data Hot Com
DRB
Indoor
RS
RS
ODT
ODT
24 Vac Only 24 Vac
Only 24 Vac
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
Dual Fuel
Switch
DUAL
Route wires into “Raceways”
Secure wires with Wire Ties
Attaching Wires
Securing Wires
Routing Wires
6
7
5

Installation Guide
6 18-HD68D1-10
KEY Terminal
Identification
ADual Fuel Switch
BThermostat +
24VAC Input
COptional Sensors
DHVAC System
Aux2
Relay Panel
Bit Master
Comm
HVAC System
Sensors
Thermostat
and Indoor Unit
Outdoor Remote
Data Hot Com
D R B
Indoor
RS
RS
ODT
ODT
24 Vac Only 24 Vac
Only 24 Vac
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
Dual Fuel
Switch
DUAL
A
B
D
C
Refer to the following diagrams for descriptions
of each terminal.
This switch ships in the NORM position by
default. Refer to the following section for com-
plete Field Wiring Diagrams.
Aux2
Relay Panel
Bit Master
Comm
HVAC System
Sensors
Thermostat
and Indoor Unit
Outdoor Remote
Data Hot Com
D R B
Indoor
RS
RS
ODT
ODT
24 Vac Only 24 Vac
Only 24 Vac
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
Dual Fuel
Switch
DUAL
A
ADual Fuel Switch
Switch Position Description
NORM For HP or conventional
Heat/Cool systems.
DUAL For dual fuel systems.
Section 4. Terminal Locations and ID

RELAY PANEL
18-HD68D1-10 7
Aux2
Relay Panel
Bit Master
Comm
HVAC System
Sensors
Thermostat
and Indoor Unit
Outdoor Remote
Data Hot Com
D R B
Indoor
RS
RS
ODT
ODT
24 Vac Only 24 Vac
Only 24 Vac
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
Dual Fuel
Switch
DUAL
C
DHVAC System Connections
Terminal Name Description Color Used:
O - SOV Switch Over Valve
Y1 - Stg1 First Stage Compressor
Y2 - Stg2 Second Stage
Compressor
W1 - Stg1 First Stage ID Heating
W2 - Stg2 Second Stage ID Heating
W3 - Stg3 Third Stage ID Heating
G - Fan Indoor Blower
BK - PWM PWM Signal for indoor
blower modulation
Hum* Humidifier Contact
Hum* Humidifier Contact
Aux 1* Dehumidifier/Ventilation ---
Aux 1* Dehumidifier/Ventilation ---
Aux 2* Dehumidifier/Ventilation ---
Aux 2* Dehumidifier/Ventilation ---
COptional Remote Sensor Connections
Terminal Name Description Color Used:
Remote
Indoor
RS Remote Indoor
temp sensor
ZZSENSAL0400AA
RS
Outdoor
ODT 1 Outdoor temp sensor
BAYSEN01ATEMPA
ODT
BThermostat and Indoor Unit Connections
Terminal Name Description Color Used:
D - Data Data
R - Hot 24 V hot
B - Com 24 V common
Aux2
Relay Panel
Bit Master
Comm
HVAC System
Sensors
Thermostat
and Indoor Unit
Outdoor Remote
Data Hot Com
D R B
Indoor
RS
RS
ODT
ODT
24 Vac Only 24 Vac
Only 24 Vac
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg
1
Y2 Stg
2
0 SO
V
NORM
Dual Fue
l
Switch
DUAL
B
For convenience, you may record the color of each wire
used in the blanks provided.
Note: R & B must receive 24 volts from the indoor unit transformer.
Note: The Relay Panel uses 5 VDC to obtain temperature feedback from
remote sensors. Do not run these sensors in a wiring bundle that contains
24 volts AC. See remote sensor literature for troubleshooting.
1Wired outdoor temperature sensor must be enabled at the Control.
*Note: Hum & Aux terminals are dry contacts only. Input voltage will need to be
supplied. Refer to humidifier’s installer’s guide. If the output of these contacts is
being used as an input to a non electro-mechanical device, a field-supplied 10K
Ohm resistor should be placed between the top terminal of each pair of contacts
and the Common (B) terminal of the Relay Panel.
Aux2
Relay Panel
Bit Master
Comm
HVAC System
Sensors
Thermostat
and Indoor Unit
Outdoor Remote
Data
Hot Com
D
RB
Indoor
RS
RS
ODT
ODT
24 Vac Only 24 Vac
Only 24 Vac
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
Dual Fuel
Switch
DUAL
D
LEDs

Installation Guide
8 18-HD68D1-10
Diagram 2 - 1 or 2 Stage Cooling w/TAM9 in communication mode Air Handler
1
2
3
4
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
1- 1 OR 2 STAGE COOLING W/TAM7 OR TAM9 MODEL VARIABLE SPEED AIR HANDLER
O
R
B
YI
YO
BK
Y2
W1
W2
W3
G
INDOOR UNIT
R
B
Y/Y1
Y2
OUTDOOR UNIT
NOTES:
1. Cut and remove the BK jumper at the indoor unit
AFC Board
2. YI and YO connections must be made as shown
for freeze protection and internally mounted
condensate overflow circuits to function properly
3. If a 3rd party overflow condensate switches are
installed, wire between Y1 of the Relay Panel and
YI of the airflow control board
4. R connection at outdoor unit is required only for two
compressor / two stage units
5. D terminal is on TAM9 ONLY.
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
COMMUNICATING
CONTROL
DRB
D
R
B
D
Section 5. Field Wiring Diagrams AC Applications
Diagram 1 - 1 or 2 Stage Cooling w/TAM7 or TAM9 in 24 volt mode Model Air Handler
1
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
1- 1 OR 2 STAGE COOLING WITH TAM9 MODEL VARIABLE SPEED AIR HANDLER
R
B
INDOOR UNIT
R
B
Y/Y1
Y2
OUTDOOR UNIT
NOTES:
1. R connection at outdoor unit is required only for two
compressor / two stage units
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
COMMUNICATING
CONTROL
DRB
D
R
B
D

RELAY PANEL
18-HD68D1-10 9
2
1
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
2- 1 STAGE COOLING W/GAM5A OR TAM4 MODEL AIR HANDLER
NOTES:
1. YI and YO connections must be made as shown for
freeze protection and internally mounted condensate
overflow circuits to function properly
2. If 3rd party overflow condensate switches are
installed, wire between Y1 of the Relay Panel and
YI of the air handler
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
O
R
B
YI
YO
W1
W2
W3
G
INDOOR UNIT
B
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
Diagram 3 - 1 Stage Cooling w/GAM5A or TAM4 Model Air Handler
Diagram 4 - 1 Stage Cooling w/GAM5B Model Air Handler
1
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
3- 1 STAGE COOLING W/GAM5B MODEL AIR HANDLER
NOTES:
1. Y terminal must be connected at indoor unit for
selected compressor air flow
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
O
R
B
Y
W1
W2
W3
G
INDOOR UNIT
B
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B

Installation Guide
10 18-HD68D1-10
Diagram 5 - 2 Stage Cooling w/GAM5B Model Air Handler
1
2
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
4- 2 STAGE COOLING W/GAM5B MODEL AIR HANDLER
NOTES:
1. Y terminal must be connected at indoor unit for
selected compressor air flow
2. R connection at outdoor unit is required only for two
compressor / two stage units
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
RR
B
Y
W1
W2
W3
G
INDOOR UNIT
B
Y1
Y2
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
5- 1 STAGE COOLING W/GAF2-S MODEL AIR HANDLER
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
W
G
INDOOR UNIT
B
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
Diagram 6 - 1 Stage Cooling w/GAF2-S Model Air Handler

RELAY PANEL
18-HD68D1-10 11
Diagram 7 - 1 Stage Cooling w/GAF2-36M Model Air Handler
1
3
2
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
NOTES:
1. YI and YO connections must be made as shown for
freeze protection and internally mounted condensate
overflow circuits to function properly
2. If 3rd party overflow condensate switches are
installed, wire between Y1 of the Relay Panel and
YI of the air handler
3. Jumper R and O must be installed for blower to run
at cooling airflow
6- 1 STAGE COOLING W/GAF2-36M MODEL AIR HANDLER
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
O
R
B
YI
YO
W
G
INDOOR UNIT
B
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
Diagram 8 - 1 Stage Cooling w/GAT2 & GAM2 Model Air Handler
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
7- 1 STAGE COOLING W/GAT2 & GAM2 MODEL AIR HANDLER
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
G
INDOOR UNIT
B
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B

Installation Guide
12 18-HD68D1-10
Diagram 10 - 1 or 2 Stage Cooling w/TEM6 or TEM8 Model Air Handler 24 volt mode
Diagram 9 - 1 Stage Cooling w/TEM3 & TEM4 Air Handler
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
9-1 STAGE COOLING W/TEM4
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
W1
W2
G
INDOOR UNIT
B
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
1
2
NOTES:
1. Cut and remove the BK jumper at the indoor unit
2. R connection at outdoor unit is required only for two
compressor / two stage units
3. D Terminal is on TEM8 ONLY
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
10-1 OR 2 STAGE COOLING W/TEM6
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
Y1
BK
Y2
W1
W2
W3
G
INDOOR UNIT
R
B
Y1
Y2
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
D

RELAY PANEL
18-HD68D1-10 13
Diagram 11 - 1 or 2 Stage Cooling w/TEM8 Air Handler communicating mode
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
INDOOR UNIT
R
B
Y1
Y2
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
D
1) R connection at outdoor unit only required
for two compressor/two stage units.
1
Diagram 12 - 1 Stage Cooling w/Gas Furnace
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
11- 1 STAGE COOLING W/GAS FURNACE
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
W1
W2 G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B/C
Y
G
INDOOR UNIT
B
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B

Installation Guide
14 18-HD68D1-10
Diagram 14 - 1 or 2 Stage Cooling w/Variable Speed S9V2 (4-pin VSPD Motor)
Diagram 13 - 1 or 2 Stage Cooling w/Variable Speed Gas Furnace (16-pin VSPD Motor)
1
2
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
NOTES:
1. Cut and remove the factory installed BK jumper at
the indoor unit IFC Board (some units may require
DIP switch settings)
2. R connection at outdoor unit is required only for two
compressor / two stage units
12- 1 OR 2 STAGE COOLING W/VARIABLE SPEED GAS FURNACE (16-PIN VSPD MOTOR)
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
O
R
B/C
Y1/Ylo
BK
Y/Y2
W1
W2
G
INDOOR UNIT
R
B
Y/Y1
Y2
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
1
3
2
13- 1 OR TWO STAGE COOLING w/S9V2 FURNACE (4-PIN VSPD MOTOR)
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
NOTES:
1. Cut the factory installed BK jumper at the indoor unit
IFC Board
2. R connection at outdoor unit is required only for two
compressor / two stage units
3. Y1 and Y2 wiring from the Relay Panel must connect
to Y1 and Y2 of the indoor unit IFC for proper air flow
and LED read out
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
O
R
B/C
Y1/Ylo
BK
Y/Y2
W1
W2
G
INDOOR UNIT
R
B
Y/Y1
Y2
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B

RELAY PANEL
18-HD68D1-10 15
1
2
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
NOTES:
1. Cut the BK jumper at the indoor unit - After cutting the
jumper, power must be off or cycled on-off-on for the
IFC to work properly
2. Requires either:
a.) 1050 control
b.) 850 control with 3.0 or later software
Note: Not a valid combination with 950 control
CFM/Ton must be set to 400
Furnace LED’s will read “CoF” continous fan during
cooling operation
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
O
B/C
Y1/Ylo
BK
Y/Y2
W1
W2
G
INDOOR UNIT
D
R
B
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
14-Communicating VS Heatpump w/Non-Communicating S9V2 Furnace (4 pin VSPD Motor)
Diagram 15 - Communicating VS Cooling w/Non-Communicating S9V2 Furnace
(4-pin VSPD Motor)
Diagram 16 - Package 1 or 2 Stage Heat/Cool w/Variable Speed Blower
1
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
NOTES:
1. Remove “R” to “BK” jumper and clip all “Y”
connections at the integrated motor control board
(ICMC) to enable pulse width control of the variable
speed indoor blower. Ensure clipped wires are
capped and taped off.
15- PACKAGE 1 OR 2 STAGE HEAT/COOL w/VARIABLE SPEED BLOWER
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
Y/Y1
Y2
W1
W2/X2
G
BK
PACKAGE UNIT
COMMUNICATING
CONTROL
DRB
D
R
B

Installation Guide
16 18-HD68D1-10
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
17- AMERISTAR 1 STAGE COOLING
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
W1
W2 G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
C
G
INDOOR UNIT
C
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
Diagram 18 - Ameristar 1 Stage Cooling
Diagram 17 - Package 1 Stage Heat/Cool w/Non-Variable Speed Blower
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
16- PACKAGE 1 STAGE HEAT/COOL W/NON-VARIABLE SPEED BLOWER
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
Y
W1
W2
G
PACKAGE UNIT
COMMUNICATING
CONTROL
DRB
D
R
B

RELAY PANEL
18-HD68D1-10 17
2- 1 STAGE HEAT PUMP 24 VOLT w/TAM9 in Communication mode AIR HANDLER
NOTES:
1. Remove the factory installed BK jumper at the
indoorunit’s AFC board
2. YI and YO connections must be made as shown
for freeze protection and internally mounted
condensate overflow circuits to function properly
3. Wire 3rd party condensate overflow switches
between Y1 of the Relay Panel and Y of the air
board
4. Connection to X2 is not required for this
configuration
4
3
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
INDOOR UNIT
R
X2
B
O
Y1
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
Y2
D
Diagram 1 - 1 or 2 Stage Heat Pump w/TAM7 or TAM9 in 24 volt mode Model Air Handler
Heat Pump Applications
1- 1 OR 2 STAGE HEAT PUMP W/TAM7 or (TAM9 in 24 volt mode) MODEL AIR HANDLER
NOTES:
1. Remove the factory installed BK jumper at the
indoor unit’s AFC Board
2. YI and YO connections must be made as shown
for freeze protection and internally mounted
condensate overflow circuits to function properly
3. Wire 3rd party condensate overflow switches
between Y1 of the Relay Panel and YI of the airflow
control board
4. Connection to X2 is not required for this
configuration
5. D Terminal is on TAM9 ONLY
4
3
2
2
1
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
O
R
B
YI
YO
BK
Y2
W1
W2
W3
G
INDOOR UNIT
R
X2
B
O
Y1
Y2
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
D
Heat Pump Applications
Diagram 2 - 1 or 2 Stage Heat Pump w/TAM9 in communication mode Air Handler

Installation Guide
18 18-HD68D1-10
6- 1 STAGE HEAT PUMP W/GAF2-36M MODEL AIR HANDLER
NOTES:
1. YI and YO connections must be made as shown
for freeze protection and internally mounted
condensate overflow circuits to function properly
2. Wire 3rd party condensate overflow switches
beteeen Y1 of the Relay Panel and YI of the air
handler
3. Connection to X2 is not required for this
configuration
3
2
1
1
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
O
R
B
YI
YO
W
G
INDOOR UNIT
R
X2
B
O
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
3- 1 STAGE HEAT PUMP W/GAM5B MODEL AIR HANDLER
NOTES:
1. Y terminal must be connected at indoor unit for
selected compressor air flow
2. Connection to X2 is not required for this
configuration
2
1
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
Y
W1
W2
W3
G
INDOOR UNIT
R
X2
B
O
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
Diagram 4 - 1 Stage Heat Pump w/GAM5B Model Air Handler
Diagram 3 - 1 Stage Heat Pump w/GAM5 or TAM4 Model Air Handler

RELAY PANEL
18-HD68D1-10 19
4- 2 STAGE HEAT PUMP W/GAM5B MODEL AIR HANDLER
NOTES:
1. Y terminal must be connected at indoor unit for
selected compressor air flow
2. Connection to X2 is not required for this
configuration
2
1
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
Y
W1
W2
W3
G
INDOOR UNIT
R
X2
B
O
Y2
Y1
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
5- 1 STAGE HEAT PUMP W/GAF2-S MODEL AIR HANDLER
NOTES:
1. Connection to X2 is not required for this
configuration
1
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
W
G
INDOOR UNIT
R
X2
B
O
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
Diagram 6 - 1 Stage Heat Pump w/GAF2-S Model Air Handler
Diagram 5 - 2 Stage Heat Pump w/GAM5B Model Air Handler

Installation Guide
20 18-HD68D1-10
6- 1 STAGE HEAT PUMP W/GAF2-36M MODEL AIR HANDLER
NOTES:
1. YI and YO connections must be made as shown
for freeze protection and internally mounted
condensate overflow circuits to function properly
2. Wire 3rd party condensate overflow switches
beteeen Y1 of the Relay Panel and YI of the air
handler
3. Connection to X2 is not required for this
configuration
3
2
1
1
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
O
R
B
YI
YO
W
G
INDOOR UNIT
R
X2
B
O
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
7- 1 STAGE HEAT PUMP W/GAT2 & GAM2 MODEL AIR HANDLER
NOTES:
1. Connection to X2 is not required for this
configuration
1
SOV
STG2
STG1
STG1
STG3
STG2
FA N
PWM
HUM
HUM
AUX1
AUX1
AUX2
AUX2
24V
ONLY
24V
ONLY
24V
ONLY
O
Y1
Y2
W1
W2
W3
G
BK
HUM*
HUM*
AUX1*
AUX1*
AUX2*
AUX2*
RELAY PANEL
R
B
W1
W2
W3
G
INDOOR UNIT
R
X2
B
O
Y
OUTDOOR UNIT
COMMUNICATING
CONTROL
DRB
D
R
B
*See note on page 7 regarding HUM and AUX
terminals.
Caution: Do not run Outdoor/Remote sensor wires in
the same bundle with HVAC wires. Also, keep away
from high voltage wiring to avoid interference.
Diagram 8 - 1 Stage Heat Pump w/GAT2 & GAM2 Model Air Handler
Diagram 7 - 1 Stage Heat Pump w/GAF2-36M Air Handler