AA UV Lamp Installation and Service Manual
Contents
1. energized 16 Turn the lamp s ON OFF SWITCH to the On position 1930 has ON OFF SWITCH on each unit gt gt IV CHECK LAMP OPERATION Check operation of the lamp using the following procedure These instructions apply to Model 1910 and both units that make up Model 1930 1 Plug the lamp s POWER CORD into a standard 120 VAC outlet that is always energized 2 Turn the lamp s ON OFF SWITCH to the On position 1930 has ON OFF SWITCH on each unit 3 Look at the SIGHT GLASS located in the bottom center of the UNIT HOUSING See Figure 1 If the lamp is operating correctly the SIGHT GLASS will be illuminated by blue light If not see the Troubleshooting section for additional steps 4 Look for any stray UV light and apply the proper caulk or aluminum tape to eliminate V ANNUAL LAMP REPLACEMENT The Aprilaire Ultraviolet Germicidal Lamp is designed for the lamp to be on at all times After 9 000 hours of operation 1 year of constant use the effectiveness of the lamp inside the unit diminishes and needs to be replaced Rarely will a lamp burn out in one year of continuous use replacement is necessary because the lamps intensity decreases Installation of the replacement lamp Aprilaire Service Part 90 is best handled by a qualified HVAC Service Contractor Lamp Replacement Instructions see Figures 1 3 a Switch ON OFF SWITCH to Off and unplug POWER CORD Wait several2. INSTALLATION LEFT UNIT RIGHT UNIT HORIZONTAL COOLING COIL UPPLY MODEL 1930 SIDE INSTALLATION LEFT UNIT RIGHT UNIT FIGURE 7 Model 1930 on A Coil RETURN MODEL 1930 FRONT INSTALLATION NOTE INSTALLATION OF 1930 ON A COIL IS ACCEPTABLE IF OPPOSITE COIL HAS ADEQUATE COVERAGE SEE SIDE INSTALLATION DRAWING FIGURE 9 SAFETY SWITCH POWER CORD ON OFF SWITCH FUSE HOLDER BLUE RED YELLOW WHITE BALLAST TO LAMP SOCKET SAFETY SWITCH BLACK GREEN WIRE NUTS 0 SUPPLY 3 MIN FOR SIDE INSTALLATION UPFLOW FURNACE 3 MAX A COIL SIDE INSTALLATION BLUE RED YELLOW WHITE TO LAMP SOCKET SAFETY SWITCH BLACK POWER CORD ON OFF SWITCH INSTALLATION TEMPLATE 125 DRILL Sf PLACES MOUNTING HOLES O CUT OUT FOR UV BULB INSTALLATION O A DRILL O SIGHT HOLE 90 685 CrP RESEARCH PRODUCTS corporation 1015 E WASHINGTON AVE MADISON WI 53703 PHONE 888 782 8638 FAX 608 257 4357 www aprilaire com B2203091
3. check line voltage at outlet The voltage should visibly blown or check fuse continuity with multi meter be close to 120 VAC if it is not contact an electrician Lamp Verify that LAMP is not broken and Is properly b If the input voltage is OK check the resistance of the seated into LAMP SOCKET To check this follow steps in the BALLAST Do this with POWER CORD unplugged Annual Lamp Replacement section with one exception you Measure the resistance from the black lead on the input should not remove and replace lamp Steps and side of the BALLAST to the blue lead on the output side of Instead simply verify that lamp tube is not broken and that it the BALLAST To contact the blue lead it may be is firmly pushed into its LAMP SOCKET If necessary use necessary to remove the lamp and put the multi meter alcohol to remove any dirt and or fingerprints from the lamp probe into the corresponding lamp socket opening The If the lamp is broken read the Lamp Disposal section of this resistance should be in the range of 7 to 12 ohms If the manual for proper disposal resistance is less than 7 ohms replace the BALLAST If the resistance of the BALLAST is OK and everything else checks out but the light still does not illuminate the starter in the BALLAST is likely shorted out and the BALLAST must be replaced List of Replacement Parts See Figures 1 3 The replacement parts are the same for Model 1910 and Model 1930 Replace
4. eginning of this manual Fallure to do so could lead to personal injury and or equipment damage In cases where fungi and or bacteria are already present on the evaporator coil it is recommended that a qualified HVAC service technician clean the coil before the installation of the UV Lamp Because the Aprilaire Ultraviolet Germicidal Lamp quickly kills fungi and bacteria there could be an initial period of temporarily increased levels of airborne decay products if the coil is not cleaned before installation 1 Determine a mounting location for the lamp Use the criteria below to select a proper location a The lamps are intended for evaporator coil treatment See Figures 4 7 for guidelines on mounting locations b Install lamp in location that prevents exposure of plastics rubber paper and other non metallic materials to UV light or shield such materials with aluminum tape sheet metal or metal conduit See CAUTION statements at beginning of manual for more details To protect lamp do not install lamp below any source of water d Install units so that LAMP ASSEMBLY is at least 3 inches away from evaporator coil surface e Install lamp in a location that can be easily accessed Allow 20 inch clearance to slide lamp in and out of duct See lamp dimensions in Figures 1 amp 2 For Model 1930 when considering mounting location keep in mind the 29 cord length that connects the LEFT and RIGHT units f Be cer
5. ment Lamp Fuse Cap amp Holder Ballast Lamp Socket Lighted On Off Switch FIGURE 1 Model 1910 POWER CORD ON OFF SWITCH FUSE amp FUSE CAP SIGHT GLASS UNIT HOUSING FIGURE 2 Model 1930 LEFT UNIT POWER CORD ON OFF SWITCH FUSE amp FUSE CAP SIGHT GLASS UNIT HOUSING CONNECTOR CORD 29 LONG ON OFF SWITCH SIGHT GLASS UNIT HOUSING RIGHT UNIT FIGURE 3 LAMP BRACKET LAMP DOOR SCREW LAMP HOLDER LAMP ASSEMBLY IS MADE UP OF LAMP LAMP DOOR LAMP SOCKET LAMP BRACKET LAMP HOLDER LAMP DOOR LAMP SOCKET HOLE FOR SIGHT GLASS L UNIT BASE FIGURE 4 Model 1910 on Horizontal Coil RETURN N HORIZONTAL FURNACE MODEL 1910 SIDE INSTALLATION FIGURE 6 Model 1910 on A Coil RETURN 4 SUPPLY A COIL 24 MAX FOR 1910 UPFLOW MODEL 1910 FURNACE FRONT INSTALLATION FIGURE 8 Model 1910 BLUE RED YELLOW WHITE BALLAST TO LAMP SOCKET RR PR BLACK MODEL 1910 TOP INSTALLATION HORIZONTAL COOLING COIL SUPPLY SS NOTE SIDE INSTALLATION OF 1910 ON A COILIS ACCEPTABLE IF OPPOSITE COIL HAS ADEQUATE COVERAGE SEE SIDE INSTALLATION DRAWING 8 MIN FROM LAMP TO TOP OF A COIL FOR FRONT INSTALLATION 3 MIN FOR SIDE INSTALLATION A COIL SIDE INSTALLATION 90 683 FIGURE 5 Model 1930 on Horizontal coil RETURN N HORIZONTAL FURNACE MODEL 1930 TOP
6. minutes for lamp to cool before proceeding b Loosen NUTS that secure UNIT HOUSING to BASE then remove UNIT HOUSING c Loosen LAMP DOOR SCREW that secures LAMP DOOR to BASE d Carefully pull LAMP ASSEMBLY out from duct This requires that you slightly lift up and tilt forward the LAMP ASSEMBLY while pulling out from the BASE e Remove LAMP by pulling it out from LAMP SOCKET and out from LAMP HOLDER f Install new replacement LAMP Aprilaire Service Part 90 into LAMP SOCKET and LAMP HOLDER Be sure LAMP is fully inserted into LAMP SOCKET g Use alcohol to remove any dirt and or fingerprints from the new LAMP h Return LAMP ASSEMBLY to BASE and fasten LAMP DOOR SCREW i Put UNIT HOUSING back in place and fasten NUTS Be sure UNIT HOUSING rests completely on the BASE and that all wiring is fully inside j Plug in POWER CORD and turn ON OFF SWITCH to On If the lamp is operating correctly the SIGHT GLASS will be illuminated by blue light In the Owner s Manual record the date the lamp was replaced so that the date for next replacement Is clear Under normal conditions the Aprilaire Ultraviolet Germicidal Lamp should not require any maintenance other than annual lamp replacement VI LAMP DISPOSAL As with a fluorescent light bulb your UV lamp contains mercury and must be disposed of properly Do not throw old lamps into the trash Many communities have agencies that take in mercury along with
7. o be needed 3 Carefully inspectthe HVAC system and make sure that no damage will occur as a result of drilling the 5 holes 4 Drill four 1 8 diameter holes at the marked location of the 4 mounting holes 5 Drill a 1 4 hole at the marked location for the hole that allows UV light to be seen through the SIGHT GLASS 6 Drill a 3 8 diameter hole into the duct at one corner of the rectangular slot 7 Starting at the 3 8 hole cut a 2 1 4 x 4 1 8 rectangular opening 8 Check that the UNIT BASE with the LAMP ASSEMBLY attached can be placed through the rectangular opening in the duct and that the UNIT BASE fully contacts the duct 9 Apply foam tape included to the side of the UNIT BASE that is in contact with the duct The purpose of the foam tape is to prevent UV light from being seen through cracks between the UNIT BASE and duct 10 Use alcohol to remove any dirt and or fingerprints from the LAMP Attach UNIT BASE with LAMP ASSEMBLY in place using 4 self tapping sheet metal screws and the pre drilled holes 12 Attach the UNIT HOUSING and secure it with two NUTS that are placed over the studs mounted on the base 13 Repeat steps 2 11 for the RIGHT UNIT of Model 1930 14 Place three WARNING labels included on the duct one on the duct near the UV lamp and the other two on Opposite sides of the plenum near the furnace air handler 15 Plug the POWER CORD into a 120 VAC power outlet that is always
8. other materials such as old paints solvents etc that require special disposal Please contact your municipal or county waste collection agency for proper disposal procedures If a lamp is broken do not use a vacuum cleaner to pick up the waste Instead sweep up the waste into a plastic bag and seal Contact your municipal or county waste collection agency for proper disposal procedures Vil TROUBLESHOOTING If the SIGHT GLASS does not illuminate check the following Power Cord Verify that the lamp s POWER CORD is Hole for Sight Glass When the LAMP ASSEMBLY is back plugged into a standard 120 VAC outlet that is always in place and with the lamp still unplugged check to see if energized there is a hole in the duct behind the sight glass See Figure for location of HOLE FOR SIGHT GLASS If there is no hole On Off Switch Verify that lamp s ON OFF SWITCH is in th ee Ale il ee carefully drill one using a 1 4 bit On position The switch is illuminated red when powered and in the On position 1930 has ON OFF SWITCH on each Ballast If the lamp is still not illuminated check the unit BALLAST See Figures 8 amp 9 for wiring diagrams of the Fuse If the lamp is still not illuminated place ON OFF two units SWITCH to Off position unplug the lamp s POWER CORD a First check the input power To do so unplug POWER and check the FUSE Look to see if FUSE is darkened or CORD and
9. rilaire MODELS 1910 amp 1930 THE BEST IN INDOOR AIR COMFORT Ultraviolet Germicidal Lamps Installation and Service Manual I SAFETY INSTRUCTIONS Please read the safety and installation instructions carefully to help ensure a correct and SAFE installation of the Aprilaire Ultraviolet Germicidal Lamp WARNING CAUTION Ultraviolet light is harmful to eyes 1 UV light can cause color changes or structural degradation of and skin Never look at light plastics rubber paper and other non metallic materials used in produced by this lamp Unplug lamp the HVAC system before servicing e Install lamp in location that prevents exposure of plastics rubber Electrical shock from 120 VAC may paper and other non metallic materials to UV light or shield such cause serious injury Disconnect materials with aluminum tape sheet metal or metal conduit power before starting installation and keep disconnected until complete The lamp has a grounding type 3 prong plug that will fit only into a e Do not install in flex duct If the UV resistance of the flex duct is grounding type power outlet Do not not known install lamp at least 6 feet away from flex duct If the alter plug in any way flex duct is UV resistant lamp may be installed as close as 3 feet e Shield electrical wires that receive direct or reflected UV radiation with aluminum tape sheet metal or conduit Install lamp at least 8 inches away from equipment componen
10. tain the area in the duct where you intend to drill and cut Is free of any obstructions or components that would be damaged by the installation or interfere with the installation g While keeping these guidelines in mind the more direct exposure the coil and drain pan receive the greater the benefit the lamps will have Note For horizontal coils larger than 24 in height it is recom mended that a Model 1930 or two Model 1910s be used 2 Using the template that is supplied with this manual mark the location of a rectangular opening for the LAMP ASSEMBLY and 5 holes 4 of which will be required to mount the UNIT BASE and 1 for the HOLE FOR SIGHT GLASS When considering placement of lamp note that the LAMP ASSEMBLY is off center relative to the base e Do not wire this unit into a switched outlet or operate the unit intermittently this will significantly reduce the life and effectiveness of the lamp e Except where noted these instructions apply to Models 1910 and 1930 For the Model 1930 install the primary or LEFT UNIT FIRST then the secondary or RIGHT UNIT The two units are connected by a power cord 29 long See Figure 2 e The tools and equipment required to complete this installation include the template a tape measure 5 16 amp 11 32 nut driver or a socket set 1 8 1 4 amp 3 8 drill bits a drill and a pair of left handed and right handed sheet metal cutters digital multi meter might als
11. ts made with UV resistant plastic If equipment or components are not made with UV resistant plastic or if the UV resistance of the material is unknown shield with aluminum Lamp may cause personal injury in tape or sheet metal the form of burns or cuts Wear protective gloves and safety glasses when handling lamp To prevent Do not install lamp inside or under an A coil burns unplug lamp and allow to cool for several minutes before servicing If lamp is broken refer to lamp e Install lamp at least 8 inches away from a horizontal coil disposal section of this manual Sharp edges may cause personal injury Use care when cutting and handling sheet metal 2 Water may damage lamp e Install lamp at least 3 inches away from an A coil e Do not install lamp below a humidifier or any source of water II APPLICATION Aprilaire Ultraviolet Germicidal Lamps are designed for the treatment of evaporator coils used in air conditioners or heat pumps in a HVAC system The lamps will kill microorganisms growing on evaporator coils and drain pans and prevent further growth The units are designed for continuous lamp operation Model 1910 is a Single Base Unit and Model 1930 is a Dual Base Unit The units are 120 VAC 60 Hz See Figures 1 3 for unit schematics Research Products Corp 111 INSTALLATION e The installation should be done by a qualified HVAC contractor e Read all safety instructions at the b
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