ACIQ ACiQ-24-AHB User manual

2023 V1.0
This Quick Start Guide covers how to connect the thermostat to your system and ensure proper
communication. It is not meant to replace the entire installation manual. Please reference install
manual for in depth instructions.
ACiQ-48-AHB/ACiQ-48-HPB
ACiQ-60-AHB/ACiQ-60-HPB
Thank you for purchasing a Next Gen Heat Pump system
from ACiQ. This system gives you the benefits of a variable
speed, inverter driven heat pump condenser, combined
with a smart air handler with a variable speed blower.
Quick Start Guide
ACiQ Next Gen
Ducted Heat Pump System
ACiQ-24-AHB/ACiQ-24-HPB
ACiQ-36-AHB/ACiQ-36-HPB

Option 1 - Wiring Diagram When Using Provided Thermostat (Recommended)
ACiQ's provided thermostat will allow the system to operate at maximum efficiency and provide full programmability. Refer to the thermostat user's manual for detailed instructions. See below for
quick start wiring guide.
Communication
Board
Data Transfer Board (Front Facing) Main Board (Side Facing)
Ensure battery is inserted here.
Without battery thermostat will not
turn on.
HA & HB wiring terminals
Gray Wires
On This
Diagram
Represent
White Wires
Data Transfer
Board
Located on "Indoor Unit Mainboard"
Terminal Block
Description: Square Board - Perpendicular
* This diagram is showing where line voltage connects to the PCB in the air handler. Please note
the connection method from the main breaker to the air handler may vary depending on if
auxiliary electric heat is used or not. Please reference the correct corresponding wiring diagram
to complete field supplied wiring.
When installing unit in this application DIP
Switches can be left in the factory default
settings.
Outdoor Unit
Power Supply
Low Voltage
18/2 Shielded Cable Example
Outdoor Unit Circuit Board
Communication Board (Left) Terminal Block (Right)
IMPORTANT NOTES
Communication wire connected to S1 & S2 MUST be 18/2 AWG shielded cable. Failure to use specified wire can result in communication errors.
The drain wire must be grounded at one end ONLY and the shield foul and conductor MUST be trimmed back and insulated at the other end. DO NOT ground the shield at both ends.
Failure to follow this procedure can result in communication errors.
Communication wire must be run a minimum of 18" away from any line voltage wires. Failure to follow this procedure can result in communication errors.
Photo Examples
Indoor Air Handler Circuit Boards
ACiQ Provided Thermostat
L1
L2
Low Voltage 208/230 Volts Low Voltage Low Voltage 208/230 Volts
RS-485
Communication
Wires (CN20)
RS-485
Communication
Wires (CN6)
OUTSIDE
S1
S2
18/2 AWG Shielded
Wire Must Be Used &
Grounded On ONLY
One Side
Field Supplied Power * Field Supplied Power
HA
HB
HA
HB
L1
L2
S1
S2
INSIDE
ACiQ
Provided
Thermostat
Indoor Unit
Thermostat
Terminals
Indoor Unit
Power Supply
(CN11)

Top E/AUX DH ON Bottom
1 2
Top E/AUX DH ON Bottom
1 2
Top E/AUX DH ON Bottom
1 2
Option 2 - Connecting a 3rd Party 24 Volt Thermostat With
Communication Wire Connected
Any 24 volt thermostat can be selected. Select the appropriate profile from the options listed below to wire thermostat
to air handler. S1 & S2 must be connected at the indoor unit and the outdoor unit. Set the system dip switches as shown
below.
SW1
L
Y1
L
Y1
W2
W2
CN11
Grey = Unused Terminal
Green = Used Terminal
Thermostat
O/B
Air Handler Data Transfer Circuit Board
G
Y/Y2
CN6
CN9
C
Diagram Grey = White Wire
C
CN11
Y
Green = Used Terminal
R
W1
Air Handler Data Transfer Circuit Board
W
CN6
CN9
CN10
R
C
R
Grey = Unused Terminal
W/E
C
R
Thermostat
CN6
CN9
G
Y/Y2
B
G
OFF
Wiring For 1H and 1C Thermostat - When Thermostat Has No O/B
Wiring For 1H and 1C Thermostat - When Thermostat Has O/B
Wiring For 2H and 1C Thermostat - Heat Pump With Electric Auxiliary
Diagram Grey = White Wire
OFF
W
CN10
W1
B
G
W
W2
CN11
O/B
Y
Thermostat Connection (Select One)
L
Y1
OFF
Air Handler Data Transfer Circuit Board
B
CN10
W1
Grey = Unused Terminal
Green = Used Terminal
Diagram Grey = White Wire
W
Y/Y2
G
Y
R
R
C
C
G
Thermostat
SW1
If S4-1 DIP Switch Is Off,
Insert Jumper

Top E/AUX DH ON Bottom
1 2
Top E/AUX DH ON Bottom
1 2
Top E/AUX DH ON Bottom
1 2
Top E/AUX DH ON Bottom
1 2
Green = Used Terminal
G
Y/Y2
B
W
W1
W2
OFF
Thermostat
Y/Y2
Y1
Diagram Grey = White Wire
G
C
R
B
W
W1
OFF
O/B
Grey = Unused Terminal
Y2
Y1
CN6
CN9
CN10
CN11
Air Handler Data Transfer Circuit Board
L
Y1
W2
CN11
CN6
CN9
CN10
R
C
Air Handler Data Transfer Circuit Board
Wiring For 3H and 1C - Two Stage Auxiliary Heat
W1/E
Grey = Unused Terminal
O/B
Y
Diagram Grey = White Wire
G
C
W2
Green = Used Terminal
R
Thermostat
R
C
L
G
Wiring For 2H and 2C - No Auxiliary Heat
Wiring For 3H and 2C - With Auxiliary Heat
W1/E
Grey = Unused Terminal
O/B
Green = Used Terminal
Y2
Diagram Grey = White Wire
W1
W2
OFF
CN6
CN9
CN10
CN11
Y1
G
C
R
Thermostat
R
C
L
G
Y2
Diagram Grey = White Wire
Y1
G
C
R
Thermostat
Air Handler Data Transfer Circuit Board
Wiring For 4H and 2C - Recommended Method
W2
Grey = Unused Terminal
O/B
Green = Used Terminal
W1/E
W2
OFF
CN6
CN9
CN10
CN11
Air Handler Data Transfer Circuit Board
If S4-1 DIP Switch Is Off,
Insert Jumper
R
C
L
G
Y1
Y/Y2
B
W
W1
Y1
Y/Y2
B
W

2023 V1.0
1= -4 °F 5= 10 °F 9 = 25 °F D= 39 °F
2= 0 °F 6= 14 °F A= 28 °F E= 43 °F
3= 3 °F 7= 18 °F B = 32 °F F = 46 °F
4= 7 °F 8= 21 °F C= 37 °F
Please note if using the provided ACiQ thermostat DIP Switch Settings will not need to be adjusted. DIP Switch settings should
only be adjusted by a professional HVAC service technician. Please note in this quick start guide the specific DIP Switches that
need adjusted will be shown to ensure accurate operation for the chosen set up. For Option 1 nothing needs to be done. For
Option 2 please refer to the DIP Switch diagram that shows the correct position of the DIP Switches.
Yes
W1 & W2 Controlled Separately
ON
W1 & W2 Not Controlled Separately
SW4
Electric Heat Nominal CFM Adjustment
Delay between 1st stage & 2nd stage electric heat is time based,
not temperature based.
This sets the maximum continuous runtime allowed before the
system automatically stages up capacity. Only applies if 24 volt
thermostat is being used.
S4-2
Dehumidify Control
OFF
DH Terminal Available To Be Used
ON
DH Terminal Deactivated
Heat Settings Cont.
S4-1
Aux Heat Control
OFF
This sets minimum temperature, anything under this setting locks out.
This sets maximum temperature, anything over this setting locks out.
SW3-3
W2 Temperature Differential Activation
OFF
OFF
15 Minute Delay (For Electric Heat)
ON
30 Minute Delay (For Electric Heat)
4 °F (Comfort)
0.5 Hours (Comfort)
SW3-2
ON
Y/Y2 Temperature Differential Adjustment
OFF
3.6 °F (Efficiency)
ON
1.8 °F (Comfort)
6 °F (Efficiency)
Function Settings
ON
Outdoor System Brand
24 Volts. Used For Third Party Thermostats.
Cold Air Prevention - Defrost
OFF
AHU DIP Switch Guide
If selected 24 volt thermostat has an E/AUX option and it is used
to activate heat, all delays will be bypassed.
Heat Settings Cont.
SW3-1
Ramping Up Algorithm Delay
OFF
1.5 Hours (Efficiency)
ON
SW2-3 only works if SW2-2 is turned ON.
General Notes
SW2-4
Heat Source Lock Outs
OFF
In This Position Electric Heat Lockout Can Be Set Via ENC2
ON
In This Position Compressor Lockout Can Be Set Via ENC2
SW2-3
Auxiliary Heat Activation Delay Time
SW1-1
SW1-2
SW1-3
SW1-4
Thermostat Communication Method
OFF
ON
RS-485 Communication. Used For Provided ACiQ Thermostat.
OFF
ON
Cold Air Prevention Activated - Fan Stops
No Cold Air Prevention - Fan Continues To Operate
Heat Pump
Cooling Only
ACiQ Condenser
Third Party Condenser
ON
System Type
OFF
Default setting is OFF except S4.
OFF = 0, ON = 1.
For example [SW4-1 OFF, SW4-2 ON, SW4 -3 OFF] = 010
T1 Sensor = Return Air Temp (Room Temp), Ts = Set point
This DIP switch only works if using the provided communicating
ACiQ thermostat. Otherwise delay is time based.
Available settings are 000/001/010/011. Each digit corresponds with an
individual switch position.
If using 24 volt thermostat this sets compressor speed instead.
ON = slower, OFF = Faster.
IMPORTANT: In order for changes to take effect power must be OFF BEFORE DIP switch changes.
Default AHU DIP Switch Settings Shown Below
When auxiliary heat is energized the fan will run in Turbo Mode.
ENC2 Dial Referenced In SW2-4. 16 Digits To Select From (0-9, A-F). Lock Out Range = -4
°F to 46 °F. 0 = No Lock Out, 1 = -4 °F Lock Out, F = 46 °F Lock Out. Each Digit Increases
Temperature By 3.6 °F. Chart Provides Temperature Rounded To Nearest Whole
Number.
S3
Heat Settings
SW2-1
Auxiliary Heat Activation Differential
OFF
4 °F Gap Between T1 & Ts Sensors
ON
2 °F Gap Between T1 & Ts Sensors
SW2-2
Auxiliary Heat Activation Delay
OFF
None
ON