RespirAide 300T Service Manual

Electronic air purifier

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Operation manual (23 pages)

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Page 1 SERVICE MANUAL 300T Ver.1.0 Phas e ELECTRONIC AIR PURIFIER Model No. RespirAide 300T WARNING RISK OF ELECTRIC SHOCK! This servicing manual is for use by qualified personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating manual unless you are qualified to do so.
Page 2 PART I GENERAL DESCRIPTION ON AIR CLEANING 1. IN DOOR AIR QUALITY If you could see the air you breathe under a microscope, you might be in for a surprise. The air quality is much more terrible than you may think. In fact, floating in indoor air is a "soup" of particles too small to be seen by your naked eye. But it is large enough to cause problems.
Page 3 PART I GENERAL DESCRIPTION ON AIR CLEANING A wide variety of molds also can produce mycotoxins at various times during their lifecycles. Building occupants can experience potentially serious health problems if they are exposed to high levels of these compounds, but this is rare in most indoor environments.
Page 4 PART I GENERAL DESCRIPTION ON AIR CLEANING 2. AIR CLEANING TECHNOLOGY When you are trying to repair the air purifiers, make sure you understand the technologies used by the air purifier and the potential issues that may be inherent in that technology which could effect the efficiency of the air purifier and your health. Most of air purifiers may use multiple technologies in their design.
Page 5 PART I GENERAL DESCRIPTION ON AIR CLEANING Electret media filter-synthetic (Hybrid Filters) Electret media filter is a hybrid of a mechanical filter and electrostatic filter or an ion generator in an integrated single filter. The media filter made from synthetic fibers is inherently negatively charged in the manufacturing process and retains a charge which attracts airborne particles that are trapped and retained within the fibers in the conventional methods of impingement.
Page 6 PART I GENERAL DESCRIPTION ON AIR CLEANING Activated Carbon Filter The activated carbon filter can remove gas and odor. This is the physical process of binding gas molecules to a large surface or pores of an adsorbent medium. Activated carbon is the most common media used for adsorption and is produced by heating carbonaceous substances (containing carbon and derived from organic substances such as bituminous coal, wood or coconut shell) to form a carbonized char, then activating (oxidizing) with gases such as steam...
Page 7 UV lamp concentrating the contaminant, the absolute toxicity of the treated air stream UV lamp and photo catalyst of 300T is reduced, allowing the photo catalytic reactor to operate as a self-cleaning filter relative to organic material on the catalyst surface.
Page 8 PART II PRODUCT INFORMATION 211301 Exploded view and part names 211201 211302 211303 211503 211120 211121 211202 211504 211117 211203 211118 211804 101201 211114 211101 101318 211801 101503 211102 101311 101319 101316 211107 211506 101315 211906 211105 101313 211304 211509 211905 101306 211508...
Page 9 5. When UV light hits the photo catalytic filter; it creates e- and h+, which have an excellent effect in the decomposition of odors. Specifications Model No. RespirAide 300T Power Requirement 120V, 60Hz, 0.71A Rated Power...
Page 10 PART III IMPORTANT PARTS - PRE FILTER PRE FILTER The pre filter is an important part of the unit. Large particles (lint, hair) are caught by the pre filter to protect the electronic cell. Cleaning the Pre filter regularly To ensure optimum performance from the air purifier, the pre filter and cell must be cleaned regularly-every one to three months.
Page 11 PART III IMPORTANT PARTS - ELECTRONIC CELL ELECTRONIC CELL The electronic cell ( electrostatic precipitator) is one of most important parts of the unit. The unit employs a two-stage electronic cell for particulates collection. It has a stage of ionizer wires and a stage of collector plates. The ionizer wires are maintained at several thousand volts, which produce a corona that releases electrons into the air stream.
Page 12 PART III IMPORTANT PARTS - ELECTRONIC CELL Exploded view of electronic cell 211517 (x12) 211518 (x5) 101507 211515 (x35) 211516 (x36) 211510 211519 (x5) 211512 101513 (x345) 211511 101514 (x10) 211514 211907 211513 211520 (x10) 101802 (x4) Part Number Description Interchangeable 211510 Cell 1st stage plate...
Page 13 PART III IMPORTANT PARTS - ELECTRONIC CELL Specifications of electronic cell Part model 200-5p Dimmensions 39.4cmx42cmx11cm Weight 3.8kg Collecting surface area 1.95m Particl removal efficiency 95%-98%< 0.3microns~0.5microns Power consumption 4.77W@7.8KV dc WARNING 1. DO NOT clean the cell with alcohol, gasoline, paint thinner The square ceramic or other flammable substances.
Page 14 PART III IMPORTANT PARTS - ACTIVATED CARBON FILTER ACTIVATED CARBON FILTER The activated carbon filter is also one of the important parts of the unit. The activated carbon filter of the unit is located behind the electronic cell. Activated carbon, the universal adsorbent, has a capacity for virtually all vapor contaminants and will adsorb and retain a wide variety of chemicals at the same time.
Page 15 PART III IMPORTANT PARTS - UV LAMP AND PHOTO CATALYST UV LAMP After removing the activated carbon filter, you will see a UV lamp behind the UV light blocker and photo catalyst behind them. The unit utilizes 6 watt UVC lamps in the 254 nm range and photo catalyst. The UV lamp is effective in destroying the nucleic acids in these organisms so that their DNA is disrupted by the UV radiation.
Page 16 PART III IMPORTANT PARTS - NEGATIVE ION GENERATOR NEGATIVE ION GENERATOR The negative ion generator is secured to the upper portion of the left fan housing by a screw and the brush terminal is on the air outlet. The negative ion has 3 wires, the black and red wire is input wires connecting to the main circuit board and the white wire with brush terminal is output wire.
Page 17 PART III IMPORTANT PARTS - INTERLOCK SWITCH INTERLOCK SWITCH The interlock switch is provided with a lever which can be actuated by the actuator on the front panel. The interlock switch opens all supply conductors simultaneously when opening the front panel for servicing. When the front panel is closed the actuator pushes down the interlock switch levers and the unit will operate.
Page 18 PART III IMPORTANT PARTS - MAIN CIRCUIT BOARD MAIN CIRCUIT BOARD The main circuit board is the most important parts of the unit. Pressing any buttons on the control panel will control the main circuit board through the display circuit board wire for the unit to carry out the desired functions. There will no display lights or incorrect display on the display panel if the display circuit board wire connections are loosened, the main circuit board or display circuit boards are broken.
Page 19 PART III IMPORTANT PARTS - MAIN CIRCUIT BOARD Replace main circuit board It is important to remember that the main circuit board will be rarely broken down. For example, when the check light is flashing you need to check the cell or power supply do not replace the main circuit board if you do not have evidence that the main circuit board is really broken.
Page 20 PART III IMPORTANT PARTS - MAIN CIRCUIT BOARD Disassemble main circuit board The ground portion of main circuit board. 2. Remove the main circuit board. 1. Remove 4 screws on the circuit board. Install main circuit board When install the circuit board, do the reversion operation. Make sure all the connection are correctly connected. Replace the main circuit board transformer 1.
Page 21 PART III IMPORTANT PARTS - POWER SUPPLY AND TRANSFORMER POWER SUPPLY The power supply is one of the most important parts of the unit. The power supply provides high voltages to the cell through the power contact plates. The red wire twin check wire connect the main circuit board. The main circuit board always investigate the voltage on the check wire, if the voltage is less than 1V dc, the main circuit board will light up the CHECK indicator light on the control panel so that you can fix the problem as soon as possible.
Page 22 PART III IMPORTANT PARTS - POWER SUPPLY AND TRANSFORMER Check and working light on the power supply When you open the bottom plate you can see the red check and green working light. 1. When the power supply is working correctly, the green light illuminates. 2.
Page 23 PART III IMPORTANT PARTS - POWER SUPPLY AND TRANSFORMER Adjust the power supply high voltage output Electronic cell generates a small amount of ozone, about 0.005 to 0.010 parts per million (ppm). The average person can detect the odor of ozone in concentrations as low as 0.003 to 0.010 ppm. The U.S. Food and Drug Administration and Health and Welfare Canada recommend that indoor ozone concentration should not exceed 0.050 ppm.
Page 24 PART III IMPORTANT PARTS - POWER SUPPLY AND TRANSFORMER Replace power supply 1. Prepare a new power supply 2. Put a screw on the circuit 3. Put the red check wire under the circuit board before setting a and 4 screws. screw on the circuit board but do not tight up.
Page 25 PART III IMPORTANT PARTS - POWER SUPPLY AND TRANSFORMER Adjust the power supply high voltage output Electronic cell generates a small amount of ozone, about 0.005 to 0.010 parts per million (ppm). The average person can detect the odor of ozone in concentrations as low as 0.003 to 0.010 ppm. The U.S. Food and Drug Administration and Health and Welfare Canada recommend that indoor ozone concentration should not exceed 0.050 ppm.
Page 26 PART III IMPORTANT PARTS - POWER SUPPLY AND TRANSFORMER Replace the power supply transformer When you disassemble the power supply you will follow the below steps and simply do the reverse operation to install the transformer. Make sure all the wires are connected correctly. 2.
Page 27 PART III IMPORTANT PARTS - FAN MOTOR SYSTEM FAN MOTOR SYSTEM After removing the plastic top cover, you will find the fan motor system. The fan motor system is composed of two fan housings and radial type fan blades, single phase AC motor and capacitor. Replace the fan motor When replacing the fan motor system you need to follow the below steps and do the reverse operation to install the fan motor system.
Page 28 PART III IMPORTANT PARTS - FAN MOTOR SYSTEM 12. Lift out the fan motor complete. 11. Unplug the fan motor cable connection. Helpful hints You need to remove 6 screws on the fan motor top plate to take off the fan motor complete (See right picture).
Page 29 PART III IMPORTANT PARTS - FAN MOTOR SYSTEM Helpful hints To prevent the trembling use spring rubber washer and flat washer when installing the motor. Motor type Capacitor run Spring and Rubber AC motor flat washer washer Power requirement 120V, 60Hz Rated Power 20W, 0.40A Capacitor...
Page 30 PART III IMPORTANT PARTS - DISPLAY CIRCUIT BOARD DISPLAY CIRCUIT BOARD The display circuit board is one of the most important parts of the unit. It is located inside the plastic top cover. The circuit board is connected to the main circuit board by display circuit board wire. If the display circuit board wire connections are loosened, or circuit boards are broken there will no display lights or incorrect display indicator lights on the display panel.
Page 31 PART III IMPORTANT PARTS - DISPLAY CIRCUIT BOARD 8. Unscrew the ground wire of screw 6. Unplug the odor sensor. 7. Unplug the remote receiver on the display circuit board. wire from the display circuit board. Add a spring washer 9.
Page 32 PART IV TROUBLESHOOTING - CHECK LIGHT FLASHING CHECK LIGHT FLASHING When the unit is turned on, the CHECK indicator light flashes and you may hear warning beep sound. When you open the unit bottom plate you will see the twin red check wires between power supply and main circuit board. The main circuit board is always detecting the voltage on this check wires when the unit is turned on.
Page 33 PART IV TROUBLESHOOTING - CHECK LIGHT FLASHING Step 1 Check electronic cell Check the electronic cell 1. If the cell is put in opposite way or missing to put cell in the unit? It will cause the CHECK indicator light on the control panel flashing.
Page 34 PART IV TROUBLESHOOTING - CHECK LIGHT FLASHING Step 3 Check power supply transformer Check power supply transformer The CHECK indicator light on the control panel is flashing but the green and red light on the power supply does not illuminate or flash go to investigate the power supply transformer.
Page 35 PART IV TROUBLESHOOTING - NO POWER NO POWER When the unit is plugged in, there are no display indicator lights on the control panel and no any melody. The buttons and remote control do not start the unit. Repair tips: 1.
Page 36 PART IV TROUBLESHOOTING - NO POWER Step 1 Check power cord plug and outlet Check power cord plug and outlet 1. Sometimes, the unit does not operate because of the electrical outlet failure. Check if other electrical appliances using the same electrical outlet are working.
Page 37 PART IV TROUBLESHOOTING - NO POWER Replace interlock switch If the unit still has no power after adjusting the interlock switch height you need to replace the interlock switch. Remember the interlock switch is not easily broken. To replace the interlock switch see IMPORTANT PART- INTERLOCK SWITCH on page 17.
Page 38 PART IV TROUBLESHOOTING - NO POWER Why does the fuse keep damaging? After replacing the blown fuse with a new one, try to operate the unit but new fuse is still blown out with unknown reasons. To fix this problem, you have to spend time to check all the electrical wires in the unit. At first, check if the electrical wire casing is damaged.
Page 39 PART IV TROUBLESHOOTING - NO POWER Step 5 Check main circuit board transformer Check main circuit board transformer If the fuse is OK, you will go ahead to check the main circuit board transformer. 1. Set the ohmmeter on AC 200V. 2.
Page 40 PART IV TROUBLESHOOTING - NO FAN NO FAN When the unit is turned on, the fan doesn't work properly. When the speed is switched, the fan has incorrect speed rates. Repair tips: 1. Check fan motor wire connection 2. Check fan motor capacitor 3.
Page 41 PART IV TROUBLESHOOTING - NO FAN Step 1 No fan with incorrect display lights No fan with incorrect display lights When the unit is powered on, the display lights show incorrect and some buttons do not work properly. Most of time, this problem is due to display circuit board wire loose. 1.
Page 42 PART IV TROUBLESHOOTING - NO FAN Check main circuit board 1. Set the ohmmeter at the range of 200V ac. 2. With the ohmmeter, check three speeds output voltages. Make sure the unit is plugged in. A. Set at Low speed, place the terminals on yellow (com) and black (L) wires, it should read somewhere close to 120V ac. If not, the main circuit board has problem.
Page 43 PART IV TROUBLESHOOTING - NO FAN Replace the fan motor If the motor still does not run correctly after replacing the motor capacitor, you will go ahead to replace the fan motor. To replace the fan motor see IMPORTANT PART-FAN MOTOR SYSTEM on page 27.
Page 44 PART IV TROUBLESHOOTING - NO FAN Check the fan motor If the fan motor cable connection is correctly all the connections are correctly connected, you need to replace the fan motor. To replace the fan motor see IMPORTANT PART-MAIN FAN MOTOR SYSTEM on page 27.
Page 45 PART IV TROUBLESHOOTING - UNIT RESET Step 1 Check remote control When the CARBON FILTER (FILTER LIFE) or UV LAMP indicator light flashes you need to replace them. After replacing the activated carbon filter or UV lamp, you need to reset the timer. When the CELL CLEANING indicator light flashes, you also need to reset after cleaning the cell.
Page 46 PART IV TROUBLESHOOTING - UNIT RESET New remote control (for B, C, D serial number units) From the units starting with R300xxxxB/C/D, there is just one RESET button on the right upper of the remote control. You can press 3-5 times to reset CARBON FILTER, UV LAMP or the CLEAN CELL indicator light flashing. POWER RESET SPEED...
Page 47 PART IV TROUBLESHOOTING - UNIT RESET POWER reset button (from C model number units) When you cannot reset the unit with remote control you can try to hold (Do not press) the POWER button 3 seconds to reset CARBON FILTER, UV LAMP or CLEAN CELL indicator light. Hold the POWER button 3 seconds Press the button once to reset the FILTER LIFE and hold 5 seconds...
Page 48 PART IV TROUBLESHOOTING - THE BUTTONS DO NOT WORK THE BUTTONS DO NOT WORK When the unit is plugged in the melody comes on but the buttons do not work, or the unit turns on but the buttons freeze and a click sound is heard. It sounds like sparking. Most of time, this problem occurs because of sparking.
Page 49 When the unit is turned on, the UV light does not light up. PART IV TROUBLESHOOTING - NO UV LIGHT NO UV LIGHT When the unit is turned on, the UV light does not light up. Repair tips: 1. Check UV lamp 2.
Page 50 PART IV TROUBLESHOOTING - NO UV LIGHT Step 1 Check UV lamp Note: The UV lamp ballast is located inside the UV lamp holder. 1. Stop the operation and unplug the unit power cord from the electrical outlet. 2. Take off the front panel. 3.
Page 51 PART IV TROUBLESHOOTING - NO UV LIGHT Replace the UV lamp ballast Lift the UV lamp holder with flat screwdriver and take it out. Step 3 Check main circuit board When you find there is no voltage on the UV lamp power cord, you will go ahead to open the bottom plate and check the main circuit board.
Page 52 PART IV TROUBLESHOOTING -ELECTRICAL SHOCK ELECTRICAL SHOCK Electrical shock occurs when touching the front panel. Repair tips: 1. Check Pre filter and cell ground clips 2. Check cell ground contact plate 1. Check Pre filter and cell ground clips A. Stop the unit and unplug the power cord. B.
Page 53 PART V APPENDIX - CHANGES OF THE UNIT Serial number Features and changes 2 RESET buttons AUTO TIMER SPEED POWER 1. Press the RESET 1 button 5 times to reset the R3000001A ~ UV LAMP NEG. ION CHECK FILTER LIFE timer for FILTER LIFE.
Page 54 RespirAide Tech Inc. 13-100 Hanlan Road Woodbridge, Ontario Canada L4L 4V8 Tel: 1-866-874-2532 Fax: 1-905-850-5553 www.respiraide.com...

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