Table of Contents
Advertisement
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for DuctlessAire DA-09
Summary of Contents for DuctlessAire DA-09
-
Page 1: Service Manual
Service Manual Service Manual Mini-Splits... -
Page 2: Table Of Contents
Service Manual Contents 1. Applications and features ..................4 1.1 Computer or Data Server Rooms .................... 4 1.2 Commercial, Offices, Shops, Churches etc ............... 6 1.3 Residential ............................7 1.4 Sun Rooms or 4 Season Rooms ....................9 1.5 Low Ambient Cooling ........................ - Page 3 Service Manual 3.3 Number of Electrical Interconnect Wires ................. 26 3.4 Service Valves ..........................27 3.5 Adding Refrigerant Charge ...................... 28 3.6 Condensate Piping ........................28 4. Common Technical Problems ................29 5. Unit Fault Codes ....................36 6. Maintenance ......................45...
-
Page 4: Applications And Features
Sizing Sizing of the Mini Split to the room is EXTREMELY IMPORTANT. DuctlessAire recommends a 12,000 Btu/h capacity per 200 to 250 Sq Ft of room size. Do not exceed this sizing guideline. Installing large capacity systems in small rooms will lead to short cycling of the compressor as the supply airflow from the unit to “bounces back”... - Page 5 MINIMUM of 6ft from the floor so that the airflow from the unit is unimpeded. Sensible Heat and Humidity DuctlessAire units are designed to provide an approximate SHR of 0.66. Be aware that low humidity conditions will further reduce unit performance, requiring either additional higher fan speeds to be programmed into the unit, or introduction of some latent load into the room, e.g.
-
Page 6: Commercial, Offices, Shops, Churches Etc
Again Sizing and Location of the Mini Split to the room is EXTREMELY IMPORTANT. DuctlessAire recommends a 12,000 Btu/h capacity for each 350 to 450 Sq Ft of the Room Do not exceed this sizing guideline for the same reason as the computer room... -
Page 7: Residential
1.3 Residential Sizing Sizing and Location of the Mini Split to the room is still EXTREMELY IMPORTANT. DuctlessAire recommends a 12,000 Btu/h capacity for each 500 to 600 Sq Ft of the Room for most applications inside the house. - Page 8 US condensing unit, this allows the outdoor units to located in areas closer to property lines, however when locating the DuctlessAire Outdoor unit, ensure that the spacing detailed in the Installation manual are observed, and that the maximum line length and lift restrictions are adhered to.
-
Page 9: Sun Rooms Or 4 Season Rooms
The throw of the 9 or 12,000 Btu/h units is approximately 15 feet, and the 18 or 24,000 Btu/h units have a throw of approximately 25 feet. Sun Rooms are a great application for DuctlessAire Mini Split units however there are several items that must be addressed to make the installation a success. -
Page 10: Low Ambient Cooling
Raychem #CCH-1 or 2 bellyband types MUST be installed. For cooling operation below 32 DegF, and down to a minimum of 0 DegF, DuctlessAire recommends that Wind Baffles be installed on both the Coil Inlet and Fan Outlet of the Outdoor unit. - Page 11 Service Manual The Temperature sensing probe should be securely attached on or adjacent to a return bend on the condenser coil that measures 100 DegF in normal operation. In practice this works out to be the 3 Return bend down from the top of the coil. Securely strap the probe to the bend or tube and insulate to ensure accurate temperature sensing.
- Page 12 Service Manual...
- Page 13 Service Manual...
- Page 14 Service Manual...
-
Page 15: Heat Pump
Service Manual 1.6 Heat Pump DuctlessAire Heat Pump units are NOT fitted with any type of auxiliary heating for back up heat during periods of time when the outdoor ambient is too cold to allow for full capacity operation. Basically the colder the air outside, the lower the capacity and supply air temperature provided by your DuctlessAire Heat Pump. - Page 16 Defrost DuctlessAire units feature “Demand Defrost” which allows the unit to choose when to enter into defrost, not just every 30, 60 or 90 minutes as most heat pumps An Outdoor coil temperature sensor is located in the Outdoor unit, it MUST be connected back to the Indoor PCB, the sensor will assist in determining if defrost is required.
- Page 17 Reversing Valve The reversing or 4 way valve is energized for HEATING in a DuctlessAire unit. If the unit does not produce heat when in the Heat Pump mode, check for line voltage starting at the Indoor unit terminal, and follow that voltage out via the interconnecting wire to the solenoid coil on the valve.
-
Page 18: Sleep Function
Service Manual stop operation, the indoor blower will operate according to the set wind speed, (when the start up condition of the compressor is satisfactory to) the operation will be restarted up six minutes later, if the temperature of the indoor coil Tp1 is higher than or equal to 145DegF for the second time within ten minutes after the start up, all of the output will be closed, and E8 will be displayed on the display panel. - Page 19 Service Manual sleep light, then all of the lights will not be lighten. Annotation: during the sleep operation, if the unit receives the timing time that has been adjusted, the twinkling of the 8LED on the display screen means that the status is being changed, if the unit receives that the set temperature has been adjusted, the 8LED will be lighten, the air conditioning will be adjusted to the operation status the same as the status before the sleep during the changing...
-
Page 20: Anti-Mildewing Operation Function
Service Manual I The “sleep” and “turbo” can not be operated at the same time, that is to say there is no sleep function during the turbo operation, and there is no turbo function in the sleep status. Anti- mildewing operation function If the air conditioning is shut down during the cooling operation under the cooling,dehumidify or automation mode, then the air conditioning will execute the anti- mildewing operation function. -
Page 21: Remember Function At The Time Of Power Failure
Service Manual Remember function at the time of power failure Storage of the data A In the status of start up or waiting, when the correct remote control code is received, the effective remote control code and the data check sum will be written into the unit designated by the E2PROM with the time delay of three seconds. -
Page 22: Pre Installation Requirements
2.3 Breaker Size Check the Breaker Size is correct for the system, DuctlessAire units do not have start components for the compressor, and therefore they rely on the correct power and amperage supply to start... -
Page 23: Line Set Lengths And Sizes
DO NOT upsize or alter the Line Set Sizes from those published, Quietside cannot guarantee operation with incorrectly sized or extended Line Sets DO NOT install Sight Glasses or Filter Driers in the Line Set Model Suction Expanded Gas Total Length Lift DA-09 1/2” 1/4” 50ft 20ft DA-12 1/2” 1/4”... -
Page 24: Outdoor Unit Positioning
(18 & 24,000 Btu/h units) Use the templates provided to locate the unit on the wall and to center the refrigerant connection hole – DuctlessAire recommends a 3” wall penetration to ease mounting of the unit. 2.6 Outdoor Unit Positioning Ensure that a minimum distance of 6”... -
Page 25: Electrical Wiring Connections
5) In order to prevent confusion with what type of refrigerant is used in the system DuctlessAire uses a 5/16” Schrader connection on the Suction line to attach a gauge set to. Therefore an adaptor is required to connect to a standard US gauge set. -
Page 26: Number Of Electrical Interconnect Wires
Service Manual This is a sample electrical interconnect for the following units, DA-09/DA12 115V Power is supplied from the Breaker on N & L 115V Power for the Indoor unit is provided on N1 & L1 Compressor signal is Terminal #1... -
Page 27: Service Valves
Service Manual 3.4 2-Way Valve and 3-Way Valve The refrigerant line set connections can be found under the GRAY plastic caps not the brass ones which cover the valve stems. DO NOT TRY TO PUT THE FLARE NUTS ON THE THREADS FOR THE SERVICE VALVE STEMS –... -
Page 28: Adding Refrigerant Charge
3.5 Adding Refrigerant Charge If the unit interconnect length exceeds the standard charge length of the system, additional refrigerant must be added to the system. DuctlessAire systems are charged for a 25ft line set as standard. The additional refrigerant MUST BE WEIGHED INTO THE SYSTEM, as these are critically charged systems. -
Page 29: Common Technical Problems
Service Manual the system if the unit has not been in the cooling mode for at least 4 hours. To connect from the 18” condensate hose provided on the Indoor unit we recommend an ø 5/8” ID or ¾” OD clear flexible PVC hose, this will provide a tight interference fit on the unit connection and allow standard rigid copper or PVC piping (depending on local codes) to be used for the remainder of the drain. - Page 30 Service Manual replace them. The refrigerant leakage. refill up refrigerant after checking the leak source. The set temperature is too high . reduce temperature. The condenser blocked by dust or clean the dust and dirt. others. Too much quantity of refrigerant. take redundant refrigerant out.
- Page 31 Service Manual contact for the line of capacitor, line fault. The motor relay and drive circuit is fault) The compressor doesn’t work(the Check. Repair and replace. voltage is too low, overload, wiring error. The compressor failed. capacitor compressor failed. the capacity of electric fence isn’t enough.
- Page 32 Service Manual Check capillary tube, The system blocked slightly strainer etc. repair replace them. The outdoor temperature is below 20DegF The A/C can’t defrost Replace this sensor move the sensor to the thickest position of frost The indoor or outdoor motor Replace this fan motor speed is lower compressor...
- Page 33 Service Manual line or PCB fault.). The compressor doesn’t work(the Check. Repair and replace. voltage is too low or high, overload, wiring error. compressor failed. The capacitor of compressor failed.the capacity of electric fence isn’t enough. ) The refrigerant leaked. refill up refrigerant after checking the leak source and welding the...
- Page 34 Service Manual The four-way valve failed and Check circuit can’t replace direction. replace the four-way valve. The PCB damaged and no output. Replace PCB. The indoor temp-sensor has been Replace this indoor damaged. tempsensor 07 The compressor The compress connecting wire is reconnect this line.
- Page 35 Service Manual missing phrase for supply voltage. Match right power supply voltage is too low. install voltage regulator. The main fuse burn-out. Replace fuse. The voltage dependent resistor Change voltage has been burst dependent resistor This AC can’t receive the remote Repair replace this...
- Page 36 Service Manual electromagnetic interference Turn on the machine afte Putting down the power and turnning on again 09 Can not heating no refrigerant in system. Please fill up refrigerant. and cooling. The refrigerant leaked. refill up refrigerant after checking the leak source. Disconnecting valve dosen’t turn Please turn...
- Page 37 Service Manual The cross flow fan collides with Reconfigure. the slot basis The noise of the refrigerant Readjust the position of the moving. H&L pressure pipe. The screw of outdoor unit is loose caused noise Screw down this screw. vibration. The bearing of cross flow fan Replace the bearing.
- Page 38 Service Manual The fan damaged or bad fitting Replace or reassemble Temperature and resistance cross-references Standard Standard celsius Fahrenheit celsius Fahrenheit (KΩ (KΩ) (ΚΩ) (KΩ) Ω) Ω) 78.8 51.159 52.84 54.521 4.771 4.821 4.871 80.6 -20.2 48.659 50.232 51.805 4.599 4.649 4.699 -18.4...
-
Page 39: Unit Fault Codes
Service Manual 33.8 12.505 12.739 12.974 134.4 1.679 1.717 1.754 35.6 11.995 12.215 12.436 136.2 1.628 1.665 1.702 37.4 11.509 11.717 11.924 1.579 1.615 1.652 39.2 11.047 11.241 11.436 139.8 1.531 1.567 1.603 10.606 10.789 10.971 141.6 1.485 1.521 1.556 42.8 10.186 10.357... - Page 40 Service Manual at on 1/1 SEC indication state is removed, it will return state to normal condition automatically Normal, the unit will stop display Outdoor Low flicker running when the outdoor at on temperature 1/1 SEC temperature is below state indication 14DegF 1.Normal (during heating...
- Page 41 Service Manual connected well, whether there is welding off or rosin joint on the electric control board, if there is any, it should be repaired. 3.When the 1 and 2 are both normal, then the components or integrated circuit is damaged, the electric control board should be replaced.
- Page 42 Service Manual rosin joint on the electric control board, if there is any, it should be repaired. 3.When the 1 and 2 are both normal, then the components or integrated circuit is damaged, the electric control board should be replaced. 1.Check whether resistance of the sensor is...
- Page 43 Service Manual normal, then the components integrated circuit damaged, the electric control board should be replaced. 1.Check whether the winding resistance and operation current of the compressor are normal. 2.Check whether the high and low pressure is normal when the unit is running. display 3.Check (whether the coil pipe display...
- Page 44 Service Manual temperature sensor reached the cooling or heating temperature(whether temperature is higher or equal to 77DegF in cooling mode). 4. Check whether the surface of the condenser is too dirty, it should be cleaned when it is too dirty. 5.Check whether capacitance of the outdoor...
- Page 45 Service Manual electric control board, insert it firmly when loosing. 2.Check whether the indoor motor has damaged, the motor should be replaced when it is damaged 3.Check whether the controllable silicon and other components on the electric control board have damaged, replace the controllable silicon or electric control board...
- Page 46 Service Manual control board should be replaced when the signal is abnormal. 1.Check whether the winding resistance and operation current of the compressor are normal 2.Check whether the high and low pressure is normal when the unit is running. 3.Check whether the indoor display display outdoor...
- Page 47 Service Manual replace or connect the signal feedback wire. 6.Check whether the supply power is phase-lacking or phase opposition. 7.Check whether the AC electromagnetic contactor is well. 8.Check whether the outdoor signal feedback wire in the terminal inserts firmly, which is between the indoor PCB and the display board 1.Check whether the filter of...
-
Page 48: Maintenance
Service Manual temperature sensor normal, and replace the sensor if it is abnormal. 4.Check whether the system pressure is normal, if abnormal, should check whether there is leakage, and fill the refrigerant again. 6. Maintenance Mini Splits are very easy to maintain, in reality they are not very different to the maintenance on a Central A/C or Heat Pump system, and can be placed on a similar maintenance schedule with one major exception. - Page 49 Therefore DuctlessAire recommends that in ALL applications the 2 large Air Filters be cleaned MONTHLY. This is very important, especially with the lower airflows of the DuctlessAire units any loss of airflow due to dirty or clogged filters can cause the unit to possibly freeze up the...
Need help?
Do you have a question about the DA-09 and is the answer not in the manual?
Questions and answers