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INSTALLATION MANUAL
FLOOR MOUNTED INDOOR UNIT
SPLIT-STYLE AIR CONDITIONER
DRAS12F1B
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.
1
DURASTAR.COM
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Summary of Contents for DURASTAR DRAS12F1B
- Page 1 INSTALLATION MANUAL FLOOR MOUNTED INDOOR UNIT SPLIT-STYLE AIR CONDITIONER DRAS12F1B Model Number: Serial Number: Purchase Date: Installing Contractor Company Name: Capture relevant information about your Durastar mini-split equipment before it is installed and write it above for future reference. DURASTAR.COM...
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Page 2: Table Of Contents
STEP 5: CONNECT DRAIN PIPE ................15 STEP 6: CONNECT SIGNAL CABLE ............... 15 STEP 7: PREPARE REFRIGERANT PIPING ............17 STEP 8: WRAP PIPES AND CABLE ................ 17 TROUBLESHOOTING ..................... 18 WIRING DIAGRAM ......................22 ERROR CODES - INDOOR UNIT ................23 DURASTAR.COM... -
Page 3: Introduction
• 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 questions@durastar.com or by telephone at 1-888-320-0706. -
Page 4: Important Safety Precautions
Do not wash the air conditioner with water as this could cause an electric shock. • Disconnect the power supply by turning it off at the circuit breaker when cleaning the air conditioner. Otherwise, you could risk electric shock. DURASTAR.COM... - Page 5 • The air conditioner’s circuit board (PCB) is designed with a fuse to provide overcurrent protection. The specifications of the fuse are printed on the circuit board. DURASTAR.COM...
- Page 6 Do not climb onto or place objects on top of the outdoor unit. • Do not allow the air conditioner to operate for long periods of time with doors or windows open, or if the humidity is very high. DURASTAR.COM...
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Page 7: Operating Temperatures
Regularly inspect and clean air filters. NOTE Your Durastar air conditioner's outdoor unit is equipped with a base pan heater, allowing it to continue to operate at freezing temperatures as low as -13°F (-25°C). When outdoor air temperatures are at or below 32°F (0°C), we strongly recommend keeping the unit plugged in at all times to ensure smooth ongoing performance. -
Page 8: Accessories
The following installation accessories are required and must be purchased separately. • Refrigerant piping (line set) • Indoor and outdoor connection wire • Outdoor power supply cord • Drain pipe • Pipe and cable wrapping tape • Wall hole sleeve and cover • Putty • Wiring u-lugs DURASTAR.COM... - Page 9 Refrigerant leak detector • Copper pipe cutter • Flaring tool • Burr reamer • Crescent or spanner wrench • Hexagonal wrench set • Torque wrench • Multimeter • Electroprobe • Level • Hammer • Wire strippers • Wire crimper DURASTAR.COM...
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Page 10: Parts Identification
Drain Hose Louver Outdoor Unit Air Inlets Signal Cable, Refrigerant Pipes, and Drain Pipe Wiring Terminal Valve Cover Air Outlet NOTE Illustrations in this manual are for explanatory purposes. The actual shape of your mini-split equipment may vary slightly. DURASTAR.COM... -
Page 11: Installation Overview - Indoor Unit
INSTALLATION OVERVIEW - INDOOR UNIT Install the indoor unit Install the outdoor unit Install the drain pipe Evacuate and charge the Connect the refrigerant Connect the wires refrigeration system pipes Perform a test run DURASTAR.COM... -
Page 12: Indoor Unit Installation
If there is no pre-existing refrigerant piping, when choosing a location, leave ample room for a wall hole (see Step 3: Drill Wall Hole for Connective Piping) for the signal cable and refrigerant piping that connect the indoor and outdoor units. DURASTAR.COM... -
Page 13: Step 2: Mount Indoor Unit
7 11/16” (195mm) Mounting brackets Mounting plate or brackets Tapping screw Washer <1/4” (6mm) WARNING Ensure that the indoor unit is completely level. Improper installation can cause the drain pipe to back up into the unit and water leaks. DURASTAR.COM... -
Page 14: Step 3: Drill Wall Hole For Connective Piping
2. Remove the four screws holding the face plate in place. Open at the bottom 30o and lift off the face plate. 3. Using a screwdriver, remove the string attached to the front panel. Gently let the front panel fall forward and remove it. DURASTAR.COM... -
Page 15: Step 5: Connect Drain Pipe
6. If connecting power to fixed wiring, a switch or circuit breaker that disconnects all poles and has a contact separation of at least 1/8" (3mm) must be incorporated in the fixed wiring. A qualified technician must use an approved circuit breaker or switch. DURASTAR.COM... - Page 16 Firmly screw the u-lug of each wire to its corresponding terminal. 5. After checking to make sure every connection is secure, use the cable clamp to fasten the signal cable to the unit. Screw the cable clamp down tightly. 6. Replace the control box lid. DURASTAR.COM...
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Page 17: Step 7: Prepare Refrigerant Piping
When wrapping the bundle, keep the ends of the piping unwrapped. You need to access them to test for leaks at the end of the installation process (refer to Electrical and Gas Leak Checks section of the outdoor unit's installation manual). DURASTAR.COM... -
Page 18: Troubleshooting
The indoor unit makes A rushing air sound may occur when the louver resets its position. noises A squeaking sound may occur after running the unit in HEAT mode due to expansion and contraction of the unit’s plastic parts. DURASTAR.COM... - Page 19 • Press ON/OFF button on remote control to restart operation. NOTE If problem persists, contact a local dealer or your nearest customer service center. Provide them with a detailed description of the unit malfunction as well as your model number. DURASTAR.COM...
- Page 20 Incompressible gas or moisture has Evacuate and recharge the system with quently entered the system refrigerant The compressor is broken Replace the compressor The voltage is too high or too low Install a manostat to regulate the voltage DURASTAR.COM...
- Page 21 If the problem persists, disconnect the power and contact your nearest appears customer service center. NOTE If your problem persists after performing the checks and diagnostics above, turn off your unit immediately and contact an authorized service center. DURASTAR.COM...
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Page 22: Wiring Diagram
WIRING DIAGRAM DRAS12F1B FUNCTION OF SWITCHES SWITCH BOARD TO WIRED SWITCH BOARD DISPLAY BOARD CONTROLLER SW103 SW102 (INDOOR UNIT) TEMP.ADJ MO/MU FAN CN10 CN15 CODE PART NAME CN1-CN20 P.C BOARD SOCKETS TYPE INDOOR DC FAN MOTOR UPPER OUTLET SWING MOTOR... -
Page 23: Error Codes - Indoor Unit
ERROR CODES - INDOOR UNIT Malfunction or Protection ashing light on light o DURASTAR.COM... - Page 24 ©2021 Durastar DURASTAR.COM V1.0 0821...
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