DURASTAR 12B Service manual

Owner and Installation Manual
DURASTAR 12B Wired Thermostat
FOR DURASTAR SPLIT-STYLE INDOOR UNITS
Model Number:
Serial Number:
Purchase Date:
Installing Contractor Company Name:
TIP
Capture relevant information about your Durastar mini-split equipment before it is installed and
write it above for future reference.
©2023 Ferguson Enterprises, LLC V1.0_01.23 D UR A STA R.CO M

Introduction
To better serve you, please do the following before contacting customer service:
• If you received a damaged product, immediately contact the retailer or dealer that sold you
the product.
• Read and follow this owner's manual carefully to help you use and maintain your air conditioner.
• Read the troubleshooting section of this manual as it will help you diagnose and solve
common issues.
• Visit us on the web at www.durastar.com to download product guides and up-to-
date information.
• If you need warranty service, our friendly customer service representatives are available via
email at [email protected] or by telephone at 1-888-320-0706.
Safety Warnings
• Only use the wire supplied with the thermostat to wire the thermostat.
• The shielded wire must be grounded.
• The connecting cable should not be longer than 20m (65.5').
• The remote control operates on a low voltage circuit loop.
DO NOT connect a 220V or 380V cable to the circuit loop.
• DO NOT use an ohmmeter to detect the insulation after wiring the remote control.
• DO NOT install the remote control near flammable liquids or gases such as gasoline or hydrogen
sulfide. Doing so creates a fire hazard.
• DO NOT operate the unit with wet hands, as this could lead to electrical shock.
• DO NOT remove the cover or touch the interior parts of the remote control.
• DO NOT use sharp or pointed objects to press the remote control buttons.
Table of Contents
Introduction.......................................................................................................... 2
Safety Warnings ................................................................................................ 2
Warnings................................................................................................................ 4
Compatability Chart........................................................................................ 4
Included Parts And Accessories............................................................... 5
Field Supplied Installation Accessories....................................... 6
Optional Accessories............................................................................ 6
Tools Needed ............................................................................................ 6
Mounting The Thermostat............................................................................ 7
Exposed Wire Mounting ...................................................................... 7
Embedded Wire Mounting ................................................................ 9
Connecting The Thermostat ....................................................................... 11
Wired Thermostat............................................................................................. 12
Operating Modes.................................................................................... 13
Advanced Features ............................................................................... 14
Led Display Indicators.......................................................................... 16
Manual Operation (Use Without Thermostat)......................... 16
Troubleshooting ................................................................................................ 17
Wiring Diagram .................................................................................................. 18
Dimensions ........................................................................................................... 18
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Compatability Chart
This chart shows mini-split compatability with the the 12B wired thermostat.
COMPATABILITY
Wall Mounted
DRAW06F1B, DRAW09F1B,
DRAW12F1B, DRAW18F1B,
DRAW24F1B
DRAW09F1A, DRAW12F1A,
DRAW18F1A, DRAW24F1A
Cassette
DRAL06F1A, DRAL09F1A,
DRAL12F1A, DRAL18F1A.
DRAC09F1A, DRAC12F1A,
DRAC18F1A, DRAC24F1A
Slim Ducted DRAD09F1A, DRAD12F1A,
DRAD18F1A, DRAD24F1A
Floor/Ceiling DRAF18F1A, DRAF24F1A
Floor Mounted DRAS12F1B
INDOOR
Included Parts And Accessories
The following items are included in the kit:
Number Name Quantity
1DRPDRAD09F1A17
12B Controller 1
20' Lead Wire 1
M4 Screws 3
3/4" Coarse Thread Pan Head
Screws 3
1/2" Coarse Thread Pan Head
Screws 2
1
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Field Supplied Installation Accessories
The following installation accessories are required and must be purchased separately.
• Anchors
Tools Needed
The following tools are required for installation.
• Phillips screwdriver
• Flat head thermostat screwdriver
Optional Accessories
The following installation accessories are optional and can be purchased separately.
• putty
• DRPDRAD09F1A16 display control panel
• DRPDRAD09F1A17B male to male adaptor from the display control panel to the IDU
Before you connect the thermostat, chose a location for the thermostat and decide whIch mounting
type you will use, exposed or embedded. The thermostat can be no farther than 20' from the indoor
unit. Consider looking at the steps to connect the thermostat, to help determine where to place the
thermostat.
Mounting The Thermostat
Top Side Wire Outlet
Bottom Side Wire Outlet
Right Side
Wire Outlet
Left Side
Wire Outlet
1. For exposed mounting, break out a tab hole on one of the four sides of the thermostat for the wire.
Slots
Exposed Wire Mounting
2. Remove the top panel of the thermostat by inserting a screwdriver into the two slots on the bottom.
WARNING
• The Printed Circuit Board (PCB) is mounted in the upper panel of the thermostat.
Be careful not to damage the board with the screwdriver.
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Back Plate
Screws M4
3. Mount the back plate of the thermostat on the wall, with three M4 screws and anchors.
Embedded Switch Box Wiring Wiring through Wall
Wiring Hole Wall hole and wiring hole
Diameter of wall hole Φ 2 cm
Embedded Wire Mounting
1. For embedded mounting, remove the
top panel of the thermostat by inserting
a screwdriver into the two slots on
the bottom.
Slots
2. Fasten the back plate to a switchbox
with two M4x25 screws.
OR
Fasten the back plate to a wall
with two M4 screw.
Back Plate
One M4 Screw
Two M4x25 Screws
4. Reattach the top panel of the thermostat.
5. Mount the back plate of the thermostat on the wall, with three M4 screws and anchors.
WARNING
• The Printed Circuit Board (PCB) is mounted in the upper panel of the thermostat.
Be careful not to damage the board with the screwdriver.
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3. In order to prevent water or condensation getting
into the thermostat, make a loop with the wire or
use putty.
Loop
Loop
Loop
Putty
Putty
Putty
4. Reattach the top panel of the thermostat.
Connecting The Thermostat
NOTE
• If there is a connection lug at the end of the shielded wire, the connection lug should be
properly grounded.
• Make sure to reserve a length of the lead wire for periodic maintenance.
Indoor Unit Connection
DRAW Run the 20' lead into the main control box and plug it into the 5-pin wire (labeled with blue tape)
coming from port CN2 on the display board. Zip-tie the wire to a secure location.
DRAD
We recommend using the display panel (DRPDRAD09F1A16), so the unit can be controlled during
service in an attic or crawl space. If using this setup, connect the 20' lead to the 5-pin connector
leading to the display panel. Then connect the 10-pin wire from the display panel to port CN10A on
the board. The provided plug adaptor DRPDRAD09F1A17B may need to be used, depending on the
plug size.
DRAS Run the 20' lead into the main control box and plug it into the 5-pin wire coming from port CN202 on
the display board. Zip-tie the wire to a secure location.
DRAF Run the 20' lead into the main control box and plug it into the 5-pin wire coming from port CN2 on the
display board. Zip-tie the wire to a secure location.
DRAC
Run the 20’ lead from the thermostat between the panel and the cassette unit. Connect the lead to
the female 5- pin wire (labeled with blue tape) that is coming from the unit’s panel. Secure the wire
with a zip-tie. This thermostat is not compatible with the DRAC24F1B.
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Wired Thermostat
RESE T LOCK
▼
▼
TIME ON
TIME
OFF
FOLLOWME
AUXI L
HEATER MOD E
FAN
SPEED
ECO
SW ING TEMP
1
2
3
4
5
67
89
10
11
12
13 1. ON/OFF Button
Press to turn the air conditioner ON and
OFF.
2. UP Button
Press to increase the set temperature in
1°F / 1C increments.
3. DOWN Button
Press to decrease the set temperature
in 1°F / 1C increments.
4. SWING Button
Function is not available for this model.
5. ECO Button
For details on ECO mode, see the ECO
feature section of this manual.
6. FAN SPEED Button
Press to select the following fan speeds:
Auto Low Med High
7. LOCK Button
Used to lock/unlock the thermostat settings.
8. RESET Button
Used to restore the system to its default settings.
9. AUXILIARY ELECTRICAL HEATER BUTTON
For use with third party electrical heaters. Not included with this unit.
10. FOLLOW ME Button
For details, see the FOLLOW ME feature section of this manual.
11. TIME OFF Button
Press to initiate the TIMER OFF feature. For details, see the TIMER feature section of this manual.
12. TIME ON Button
Press to initiate the TIMER ON feature. For details, see the TIMER feature section of this manual.
13. MODE Button
Press to select the operating mode.
AUTO COOL DRY HEAT FAN
→→→
→
Operating Modes
Setting Temperature
This unit can be set at any temperature between 62 and 86°F (17-30°C) in cool, heat, and dry
modes. You can increase or decrease the set temperature in 1°F (1°C) increments using the TEMP
up ( ) or TEMP down ( )button.
Auto
In AUTO mode, the unit will automatically select the COOL, FAN, HEAT, or DRY modes to maintain
the set temperature.
•Press the MODE button and select AUTO.
•Set your desired temperature using the TEMP down or TEMP up button.
•Press the ON/OFF button to start the unit.
Cool
•Press the MODE button and select COOL.
•Set your desired temperature using the TEMP down or TEMP up button.
•Press the FAN SPEED button to select the fan speed: AUTO, LOW, MED or HIGH.
•Press the ON/OFF button to start the unit.
Fan
•Press the MODE button and select FAN.
•Press the FAN SPEED button to select the fan speed: AUTO, LOW, MED or HIGH.
•Press the ON/OFF button to start the unit.
Dry (Dehumidify)
•Press the MODE button and select DRY.
•Set your desired temperature using the TEMP down or TEMP up button.
•Press the ON/OFF button to start the unit.
NOTE
• Press the Temp Up and Down buttons (#2 & #3) simultaneously to switch between
Fahrenheit and Celsius (some models).
• The FAN speed cannot be adjusted in AUTO or DRY Mode.
• Press and hold the UP and DOWN buttons simultaneously for 3 seconds to switch
between F and C..
NOTE
• You cannot adjust the temperature in FAN mode. As a result, your thermostat's LCD
display will not display a temperature.
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HEAT
• Press the MODE button and select HEAT.
• Set your desired temperature using the TEMP down or TEMP up button.
• Press FAN button to select the fan speed: AUTO, LOW, MED or HIGH.
• Press the ON/OFF button to start the unit.
Timer
The TIMER feature establishes the amount of time that will elapse before the unit will
automatically turn on/off.
Press the TIMER ON button to initiate the auto-on time sequence. Each subsequent press of
this button will increase the setting in 30 minute increments up to 10 hours. Once the setting time
displays 10.0, each additional press will increase the setting in 60 minute increments. To cancel the
auto-timed program, simply adjust the timer to 0.0.
Press the TIMER OFF button to initiate the auto-off time sequence. Each subsequent press of
this button will increase the setting in 30 minute increments up to 10 hours. When the setting time
displays 10.0, each additional press will increase the setting in 60 minute increments. To cancel the
auto-timed program, simply adjust the timer to 0.0.
TIMER ON and OFF setting example.
Keep in mind that the time periods you set for both the on and off feature refers to hours after the
current time.
If the current time is 1:00 PM and the TIMER ON setting is adjusted to 2.5 hours, the auto-on time
sequence will turn the air conditioner on 2.5 hours later at 3:30 PM. Setting the TIMER OFF auto-
off sequence to 5.0 hours will turn off the air conditioner 5 hours later at 6:00 PM.
Advanced Features
Current Time
1:00PM
2:00PM 3:00PM 4:00PM
5:00PM
6:00PM
Timer starts Unit turns
ON
Unit turns
OFF
2.5 hours later
5 hours later
3:30PM
NOTE
• As outdoor temperature drops, the performance of your unit’s HEAT function may
be affected.
• Two or more indoor units can be operated by one outdoor unit. When several indoor units
are operated simultaneously, cooling/dry/fan and heating operations cannot be done at the
same time. When COOL/DRY/FAN is selected with one unit and HEAT with another or vice
versa, the unit selected last goes into standby mode.
Eco
The ECO feature is designed to decrease energy use while you sleep. This feature can only be
activated by the wired thermostat. The ECO feature is not available in FAN or DRY mode.
Press the ECO button when you are ready to go to sleep. When in COOL mode, the unit will
increase the temperature by 2°F (1°C) after 1 hour, and will increase an additional 2°F (1°C) after
another hour. When in HEAT mode, the unit will decrease the temperature by 2°F (1°C) after 1
hour, and will decrease an additional 2°F (1°C) after another hour.
The ECO feature will turn off after 8 hours and the system will return to normal functioning.
Follow Me
This feature uses the temperature at the thermostat's location, instead of the indoor unit's
location, to optimize the temperature around you and ensure maximum comfort. Press the
FOLLOW ME button to turn on this feature and the thermostat will display the temperature at its
location. When using AUTO, COOL, and HEAT modes the air conditioner will continue running until
the temperature at the thermostat's location is satisfied. Press the FOLLOW ME button again to
turn off this feature.
Auto-Restart
The auto-restart feature is enabled when power is interrupted to the unit. After power is restored,
the unit will automatically return to its prior settings before power was lost. No buttons need to be
pressed to set this feature - it is automatic.
Set
Temperature
1hr 1hr
Keep
Running
ECO Operation
Saves energy during sleep
In HEAT mode, temperature adjusts
(-1°C/2°F) per hour for the first two hours
In COOL mode, temperature adjusts
(+1°C/2°F) per hour for the first two hours
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Led Display Indicators
The following is a list of possible indicators that may appear on the indoor unit's display panel. Not
all the display indicators may be available on the unit purchased.
Feature Indicator Notes
TIMER ON,
SWING, TURBO,
SILENCE
ON Displays for 3 seconds when the TIMER ON feature is set or the
SWING, TURBO, or SILENCE feature is turned on. If the unit is off,
ON will continue to be shown if the TIMER ON feature is set.
TIMER OFF,
SWING, TURBO,
SILENCE
OF Displays for 3 seconds when the TIMER OFF feature is set or the
SWING, TURBO, or SILENCE feature is turned off.
SELF CLEAN SC Displays when the SELF CLEANING feature is on.
FP FP Displays when the FP feature is on.
FORCED
COOLING
FC Displays when the FORCED COOLING mode is selected with the
manual control button. See Manual Operation section.
ANTI-COLD AIR
FLOW
cF The unit is designed not to blow cold air in HEAT mode. When
HEAT mode is selected the unit will display "cF" until the set
temperature is reached and the unit can blow warm air.
DEFROST dF Displays when unit is defrosting. This may last 5-10 minutes
depending on the outdoor temperature and the amount of frost
buildup on the outside unit.
Manual Operation (Use Without Thermostat)
The optional plug-in display control panel DRPDRAD09F1A16 is intended for testing purposes and
emergency operation in cases such as the DRAD units, where the indoor unit does not have its
own manual operation. Please do not use the optional control panel, unless the wired thermostat
is unresponsive and it is absolutely necessary. The unit must be turned off before manual
operation.
To operate your unit manually:
1. Locate the MANUAL button on the optional display panel.
2. Press the MANUAL button one time to activate FORCED AUTO mode.
3. Press the MANUAL button again to activate FORCED COOLING mode.
Manual
Button
Display
Panel
MANUAL buton
Optional Display Control Panel
ISSUE POSSIBLE CAUSES
The fan speed cannot
be changed
Check whether Auto mode is
selected.
In AUTO mode, the fan speed is
set automatically and cannot be
changed.
Check whether DRY mode is
selected.
In DRY mode, the FAN SPEED
button is ineffective.
The fan speed can only be changed in
COOL, FAN and HEAT mode.
The temperature display is off. Check whether FAN
mode is selected.
In FAN mode, the temperature
cannot be adjusted.
The TIMER OFF disappears
after a period of time.
If the TIMER OFF function
was activated, the operation
may have finished.
The air conditioner will
automatically stop at the set
time and the indicator light will
turn off.
The TIMER ON indicator
disappears after a period of
time.
If the TIMER ON function
was activated,the operation
may have finished.
The air conditioner will
automatically start at the set
time and the indicator light will
turn off.
Unit does not turn on when
pressing ON/OFF button
The unit has a 3-minute protection feature that prevents the unit from
overloading. The unit cannot be restarted within three minutes of being turned
off.
The unit changes from COOL/
HEAT mode to FAN mode
The unit may change its setting to prevent frost from forming on the unit.
Once the temperature increases, the unit will start operating in the previously
selected mode again.
The set temperature has been reached, at which point the unit turns off the
compressor. The unit will continue operating when the temperature fluctuates
again.
Troubleshooting
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Indoor Unit
Indoor Unit Switch Board
Infrared Pipe
5-core Shield Cable
Wire Controller
Wire Joint, 5p
Wiring Diagram
Dimensions
4-3/4"(120mm)
4-3/4" (120mm)
13/16"
(21mm)
2" (51mm)
1/2"
(13mm)
1-15/16" (50mm)
3-5/16" (85.5mm)
3/4" (19.5mm)
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©2023 Ferguson Enterprises, LLC V1.0_01.23 D UR A STA R.CO M 18 D UR A STA R.CO M