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****** Page 1 ****** electro-am by White-Rodgers Electronic Air Cleaner UST Universal Slim Twin Model Number 16C26s-010 electro-an OWNERS MANUAL • Installation Operation Basic UST Service Guide Technical Repair Guide Repair Parts Please read and familiarize yourself with the contents of this manual before installing, operating or performing maintenance on the unit. UL Listed CSA Certified Printed In U.S.A. Part No. 37-6070A Replaces 846-2027 Rev B 0015

****** Page 2 ****** RULES FOR SAFE INSTALLATION AND OPERATION Please read instructions before installing and using the Electronic Air Cleaner. This will help you obtain the full benefit from the Electronic Air Cleaner you have selected. AWARNING ELECTROCUTION HAZARD Shut off power at fuse panel before servicing. Failure to do so could result in serious personal injury or death. AWARNING Do not attempt installation of this unit unless you are familiar with the necessary tools, equipment, utility connections and potential hazards. Installation should be performed only by a quali- fied service provider. Failure to do so could result in reduced perfor- mance of the unit, serious personal injury or death. TABLE OF CONTENTS Rules for Safe Installation and Operation . 2 How the Air Cleaner Works 3 Construction of the Air Cleaner………………….. 3 Preinstallation 4 Installation ….. ….. ….. ….. ……… .6 Wiring Instructions . Operation 8 Maintenance and Washing . 8 Specifications 9 1. 2. Read the Owners Manual and the Rules for Safe Operation carefully. Failure to follow these rules and instructions could cause a malfunction of filter or unsatisfactory service. Follow a regular service and maintenance schedule for efficient operation. AWARNING Installation of this unit must comply with local electric codes or other applicable codes. Review and understand local codes prior to in- stallation. Failure to do so could result in serious personal injury or death. ACAUTION CABINET AND CELLS MAY CON- TAIN SHARP EDGES. Use care when servicing unit or han- dling cells. Failure to do so could result in mi- nor personal injury. AIR CLEANER SIZE Your new air cleaner is designed for central heating or cooling blowers delivering 1000 to 2000 cubic feet of air per minute (cfm.) BASIC TOOL REQUIRED Tin Snip Screwdriver Rule or Tape Measure Drill Basic UST Service Guide ….. ….. ….. ….. .. Technical Repair Guide Repair Parts 10 11 14 2

****** Page 3 ****** HOW THE AIR CLEANER WORKS Dirt particles flowing through the ducts (Figure 1) first enters the pre-filters (A) where large particles (hair, lint, etc.) are trapped. Smaller particles (smoke, dust, pollen, etc.) pass through these pre-filters and enter the ionizing section (B). Here each tiny particle receives a positive electrical charge. These charged particles then enter the collecting section (C). This section consists of a series of aluminum plates which are alternately charged negative and positive. The positive charge of the particles cause them to be repelled by the positive plates and attracted to the nega- tive plates where they are collected just as a magnet attracts iron filings. Clean-filtered air re-enters the supply duct system. CONSTRUCTION OF THE AIR CLEANER Not only is your air cleaner easy to install, it is also easy to operate and maintain. Its basic components, and their functions, are as follows: (See Figure 2) Cabinet – mounts to existing duct work and houses the collecting cells and pre-filters. Collecting Cells – are made in two sections and perform the actual collecting of dust, dirt, and other impu- rities from the air. They contain the ionizing and collection sections described above. Each cell must be installed with the ionizing wires on the air entering side. Each cell must be ori- ented with the handles and contact button (Fig- ure 2) toward the operator. Pre-filters – are in two sections which are interchange- able. They serve as a pre-filter to trap large particles such as hair and lint before they can enter the cell sections. Power Pack- contains operating and power on lights as well as the solid state components that convert the 120 volt power supply to the high-voltage, direct current required for the collecting cell. 3 A B c Dirty Air In Cabinet Contact Button Figure 1 Pre-Filters €3 Clean Air Out Handle Collecting Cells Figure 2 Contact Button Power Pack

****** Page 4 ****** PREINSTALLATION Not to Exceed 200 Air Flow Furnace Opening Furnace (Interchangeable) (Interchangeable) Collecting Cell Collecting Cell Cabinet Air Flow Electronic Air Cleaner Opening Electronic Air Cleaner Outlet Box Contact Button Pre-Filters Power Pack Transition Section (if Needed) Figure 3 (Interchangeable) Handle Contact Button See text for Cell Removal Clearance LOCATING THE AIR FILTER Your electronic air cleaner must be mounted in the return air duct of a central forced-air system, on the air entering side of your furnace. (See Figure 3 for example.) Select a location that meets the following: 1. 2. 3. 4. The face of the cell will be at a right angle to the air stream. Allow a clearance of 14 inches to permit removal of cells and pre-filters: (See Figures 4 and 5). For complete dimension data refer to Figure 5. The air filter is not to be placed in the discharge of either the heating or cooling unit. IMPORTANT: If atomizing spray type humidifier is used, it must be installed downstream from the air filter. 20 5/8″ Figure 4 Knockouts for 3/4″ Conduit 6 7/8″ (three sides) 18 5/8″ 17 3/4″ 21 5/16″ 25 1/2 Figure 5 4 20 3/8″ If furnace opening cannot be enlarged to required size, a transition sheet metal section must be used. Transition must be planned for each job. Reduction should not be more than 4 inches per linear foot, approximately 20 angular degrees (Figure 3). DIRECTION OF AIR FLOW THROUGH THE AIR CLEANER Your air cleaner is shipped from the factory with air flow from left-to-right. If this air flow is suitable for the installa- tion, no further changes need to be made (Figure 4). For right-to-left air flow, remove both pre-filter and cell sec- tions. Turn cells upside down (with the same end facing the cabinet opening). This will locate the ionizing wires at the right, and both contact buttons and cell handles will be facing the power door. Air flow direction must agree with arrow embossed on end of collecting cells. After installing the cell sections, install pre-filters in cabi- net tracks on the right. This will again place the pre-filters on the air entering side (on the same side as ionizing wires). 4

****** Page 5 ****** TYPICAL MOUNTING POSITIONS Air Flow Rear View Figure 6 BASEMENT FURNACE (LOWBOY) (Figure 6) Cleaner is mounted hori- zontally in return plenum, Air Flow Rear View Figure 7 COUNTERFLOW FURNACE (Figure 7) Cleaner is mounted horizon- tally in return duct or plenum, just above furnace. Air Flow Figure 8 HIGHBOY FURNACE (Figure 8) Side installation. Cleaner is mounted vertically, where return air enters side inlet of furnace. just above furnace. Figure 9 HIGHBOY FURNACE (Figure 9) Installation beneath furnace. Cleaner mounts horizontally, where return air enters from below. Raise furnace and in- stall beneath base. Less than 7 Inches Figure 10 Offset At Least 9 Inches Air Flow Figure 11 OFFSET INSTALLATION (Figure 10) Typical use of duct offset to match air filter opening. If duct connection to furnace allows less than nine inches for mounting the air cleaner, shorten the lateral trunk, or attach an offset fitting to the elbow. Air Flow HORIZONTAL FURNACE (Figure 11) Cleaner is mounted vertically in the return duct near furnace. 5

****** Page 6 ****** INSTALLATION REMOVE OLD FILTER AND DISCARD (Figure 12) NOTE: This filter may be mounted in the furnace compart- ment. CLEAN BLOWER COMPARTMENT It is suggested that the furnace blower compartment, blower and blower housing be cleaned to ensure clean air circulation. INSTALLATION The following is a typical installation of the air cleaner on a “Highboy” furnace (Figure 8). Figure 12 Duct 1. 2. 3. 4. Place the air filter cleaner on the floor. Stand it upright with the power door facing you (Figure 4). If a horizon- tal installation is being planned, lay the cleaner on its side, this will help you to visualize the relative location of all parts. Allow ample space for wiring and servicing the power supply box (Figure 13). Release the latch, remove the power pack (by grasp- ing handle and pulling power pack away from cabi- net) and set it aside. Remove the collecting cells and pre-filters. Set pre-filters and cells aside in a safe location until the cabinet is installed. Set the cabinet next to the furnace. If necessary, enlarge the opening in the furnace (if possible) to match the opening in the cabinet. If the furnace opening cannot be enlarged, a transi- tion fitting should be used. (Figure 3). The cabinet can be attached directly (Figure 1 3), or a starting collar can first be fitted to the furnace inlet. A butt or slip joint can be used. Securely attach the cabinet to furnace inlet, using at least two of the mounting holes on each side of the cabinet. Using buttjoint, attach duct work (normally an elbow) to the upstream side of air cleaner cabinet. (Note the use of the sheet metal turning vanes inside the elbow to improve air distribution over the face of the cells.) (Figure 14) Frame Mounting Holes Air Flow Optional method Power Supply Box Figure 13 T rning Vanes Figure 14 NOTE: An optional method of attaching duct work to the cabinet is to modify the cabinet (Figure 15) by bending the tabs outward at a 900 angle and attaching duct work to tabs. Transition Fittings If the air duct does not fit the cabinet opening, a transition fitting should be used. Gradual transitions are preferred for greatest efficiency. Not more than four inches per linear foot (approximately 200 angle) should be allowed (Figure 3). 5. 6. (Bend tabs outward at 900 angle) Figure 15 Connect the vertical duct section to the elbow. Wedge a wood block between floor and elbow for support (Figure 16). Seal all joints in the return air system downstream from the air cleaner with duct tape to prevent dust from entering the air stream. Tape is usually applied on the outside ofducts, but may also be applied on the inside, or both. 6

****** Page 7 ****** WIRING INSTRUCTIONS 7. With the cabinet installed, the air cleaner can now be wired to electrical input source. AWARNING Installation of this unit must comply with local electric codes or other applicable codes. Review and understand local codes prior to in- stallation. Failure to do so could result in serious personal injury or death. your system is not equipped with an EAC output terminal, Figure 19 shows a method for installing a relay (customer supplied) to switch power to the air cleaner when the blower is on. 8. 9. The air cleaner must be wired through the furnace controls. This unit requires a 120 VAC 60 Hz input circuit. A 20 amp circuit is more than adequate. Remove junction box cover and install the required bushing into the 3/4 in. knock out. With the supply voltage turned off, route three (3) wires into junction box for connections. (See Fig. 17.) Insure all wires are clamped, wire connectors prop- erly installed and grommets used to prevent wire abrasion. Floor Figure 18 Conduit Duct Electronic Air Cleaner 10. The air cleaner must be wired to have power supplied when the furnace blower is on and there is airflow through the duct. Some furnace control modules have an output terminal for an electronic air cleaner that will energize the unit when the blower is on. If Cooling Fan Relay (External) N.O 81. C. Brown N.C. I N.O. NC. N.O. Electronic Air Cleaner 120 Volt 2 Speed Fan Lo c Vertical ………………………………………………e. Section Wood Block Hot Hot Grounding Conductor Tape All Joints Figure 16 Front View Figure 17 7 N.O. 120 Volt 60 Hz Fan Control (Open) 120 Volt I Relay (OFF) —J (Customer Supplied) 120 Volt 60 Hz Cooling Mode – Fan Operating in Hi Speed Cooling Fan Relay (External) N.O Brown N.C. N.O. NC. N.O. Electronic Air Cleaner 120 Volt 2 Speed Fan Lo c N.O. 120 Volt 60 Hz Fan Control (Closed) 1 120 Volt I Relay (ON) —J (Customer Supplied) 120 Volt 60 Hz Heating Mode – Fan Operating in Low Speed Figure 19

****** Page 8 ****** An alternate method for controlling the air cleaner operation is to install an F859-0381 Air Flow Switch/ Harness Kit (available separately) that switches power to the air cleaner when airflow is detected. NOTE: The air cleaner should not be operating un- less the furnace blower is on. 1 1 . With the cabinet Installed, reinstall pre-filter(s) and collecting cell(s) (Figure 20). NOTE: The contact button and handles on the cell must be facing you and ionizing wires must be on the air intake side. 12. Install the power pack as follows: Engage the lip on lower inside edge of power pack in the flange on cabinet and carefully close the power pack, making sure that the electrical connector prongs on the power pack enter the slots in the socket on cabinet. When the power pack is fully in place, en- gage the latch and snap it closed. OPERATION Cabinet Contact Button 1. 2. 3. With the 120 VAC power turned on at the circuit breaker for the furnace, push the air cleaner ON-OFF switch to the “ON” position (Figure 21 With the furnace blower running, the air cleaner will be operating. An arcing or “snapping” sound may be heard. This will occur occasionally, however the unit is operating properly. With the furnace blower running, the Operating Light should be ON. If the Operating Light is not ON this signifies that the cells need washing, or that trouble exists in the unit. Pre-Filters Collecting Cells Figure 20 o Figure 21 Handle Contact Button Power Pack Operating Light On-Off Switch If, after washing the cells, the Operating Light stays off, the cell could be wet, improperly placed in the cabinet or may need servicing. NOTE: An occasional flicker of the light accompanied by harmless sparking or snapping noise may occur. This is caused by trapping large particles of dirt. If arcing is continuous, the cells should be washed or checked for service problems see Basic UST Service Guide. MAINTENANCE AND WASHING ACAUTION CABINET AND CELLS MAY CON- TAIN SHARP EDGES. Use care when servicing unit or han- dling cells. Failure to do so could result in mi- nor personal injury. For maximum efficiency your air cleaner cell(s) and pre- filter(s) should be inspected once a month and cleaned when necessary. Cleaning will usually be required every one to three months, depending upon the particular household circumstances. When cleaning is required the following procedure should be used: 1. 2. CLEANING THE CELLS Turn the air moving system “OFF.” Push the ON-OFF switch on the power pack to the “OFF” position (Figure 21 ). Wait 1 5 seconds and both the power pack and the collecting cell(s) will be automatically discharged. 8

****** Page 9 ****** 3. 4. 5. 6 7. 8. Release the latch on top of power pack and pull the power pack straight away from cabinet at the top. Then lift pack out of ledge at bottom edge of cabinet. Set power pack aside. Remove the cell(s) and pre-filter(s) from cabinet. Using a solution of warm water and low sudsing detergent, soak cell(s) and pre-fllter(s) for 20 to 30 minutes. NOTE: Ionizing wires may become coated causing loss of cleaning ability by the collecting cell. Using a damp cloth, wipe each ionizing wire, exercising care not to damage them. Remove the cell(s) and pre-filter(s) from solution and rinse thoroughly with clean water. Allow cell(s) and pre-filter(s) to drip dry for a mini- mum of 2 hours. Cell(s) and pre-filter(s) may be tipped at a slight angle to expedite the drip-dry pro- cess. Reinstall the cell(s) and pre-filter(s) in the cabinet. Replace the power pack. Turn furnace fan on. After 30 minutes push ON-OFF switch on the power pack to the “ON” position. A moderate amount of arcing or “snapping” may occur at this time, which will indicate that the cell(s) are still damp. If the noise is objectionable, push the ON-OFF switch to the “OFF” position and allow additional time for cell(s) and pre-filter(s) to dry. In some cases the Operating Light will remain OFF during this initial activation of the air cleaner, and this would indicate that the cell(s) are not completely dry. The Operating Light should remain ON while the furnace fan is running once the drying is complete. REPLACING AN IONIZING WIRE If an ionizing wire should break, it can be replaced as follows: 1. 2. 3. Remove all pieces of broken wire. Make sure sup- ports at each end are in good condition and not bent out of shape. Hook the new wire onto the support at one end. Hold your finger against the support at the other end (Figure 22) and hold the ionizing wire between thumb and forefinger as shown or use needle nose pliers. Press inward on spring support. Hook end of wire over small tab at end of support and release. Make sure wire is securely anchored at each end. Support Ionizing Wire Figure 22 SPECIFICATIONS SPECIFICATIONS FOR 16C26s-010 Rated Capacity Max. Pressure Drop Cell Weight Power Pack Weight Unit Weight Power Consumption Electrical Input Electrical Output @ 6450 VDC (nom) Max. Ozone Output Temperature Rating 1000 – 2000 cfm .12 in. W.G. (2) 9 lbs. each 9 lbs. 37 lbs. 40 Watts (Max) 120 VAC 60 hz. 1.5 Ma .05 ppm 400 F to 1250 F 9

****** Page 10 ****** BASIC UST SERVICE GUIDE This guide will cover most homeowner complaints. If, after checking the items listed, the unit still fails to operate properly, contact the nearest Authorized Service Center. SERVICE INDICATION ON/OFF switch “ON” Blower ON Operating Light ON ON/OFF switch “ON” Blower ON Operating Light OFF Excessive arcing during normal operation – Operating Light may blink SERVICE CHECKS unit functioning Normally 1. 2. 1. 2. 3. 4. Power is not being supplied to air cleaner. A. Check fuse or circuit breaker. B. Ensure power pack is properly installed and latched. Collecting cell shorted – Turn power Off – Remove power pack – Remove collecting cells – Replace power pack – Restore power (ensure blower is operating). A. If Operating Light comes ON check cells for bent plates, loose ionizing wire(s) or cracked insulator(s). B. If Operating Light remains OFF, malfunction is in the power pack. (See power supply Checkout Procedure). Wet collecting cell. A. Allow cell(s) to dry after cleaning before applying power. Damaged collecting cell(s). A. Remove cell(s) and inspect for bent plates, loose ionizing wire(s), cracked insulator(s), etc. Collecting cells dirty. A. Clean cells as instructed in this manual. Faulty power supply (see power supply checkout procedure) 10

****** Page 11 ****** TECHNICAL REPAIR GUIDE AWARNING Do not attempt repair of this unit unless you are familiar with the necessary tools, equipment, util- ity connections and potential hazards. Repair should be performed only by a qualified service provider. Failure to do so could result in reduced perfor- mance of the unit, serious personal injury or death. This guide contains service checks to assist service personnel in locating and correcting any malfunction that might occur to render the air cleaner ineffective or inop- erative. The air cleaner has been designed with replace- able components, such as the high-voltage power supply. This allows the serviceman to replace a faulty component rather than attempt repairs of such components in the field. 120 VAC Connector o Power Pack Assembly Cover Assembly o o Operating Light All voltage measurements indicated can be made with a high voltage D.C. probe and a general purpose volt ohm meter. For example: Simpson 260 or equivalent. NOTE: All tests to be performed with the Ozone Reduc- tion Jumper intact. NOTE: When servicing the power pack components, all wiring must be routed to factory specifications. Power Supply Specifications The solid-state power supply is not designed for individual component part replacement and must be replaced as a complete “snap-in” unit. ON/OFF Switch Blk Red Gnd Cell Contact & Insulator Power Supply Figure 23 11 Input voltage: 120 VAC 50/60 Hz. Output to light: 1.5 to 2.5 VDC H.V. Output: 6450 VDC (nom) Collecting Cell Specifications 1600cfm – 1.5 Ma @ 6450 VDC

****** Page 12 ****** 1. 2. 3. 4. 1. 2. 3. 4. 5. 6 POWER SUPPLY CHECKOUT PROCEDURE Turn power switch to the “OFF” position and remove the power pack from cabinet. Place power pack on a well insulated workbench. Connect meter negative (-) lead to the sheet metal chassis and the high voltage probe to high voltage contact on back cover of power pack. Connect AC power to power pack using an extension cord and turn power switch to the “ON” position. Keep hands and tools away from high voltage contact. If Operating Light comes ON and output voltage is between 6100 and 6800 VDC, power supply is good. If voltage is good but Operating Light does not come on, replace Operating Light. CELL TEST Place collecting cell on a well insulated workbench with the cell contact button pointing upward. Select a power pack (with ozone reduction jumper intact) that reads between 6100 and 6800 VDC at the cell contact with no cell attached. Place power pack on top of collecting cell ensuring that there is proper contact between the cell contact on the power pack contact. Using a standard extension cord, apply 120 VAC to power pack. Turn power switch to “ON” position. Connect meter negative (-) lead to metal frame of collecting cell. Use high voltage probe to measure voltage at collecting cell ionizer or cell plates. Voltage should be 6100 to 6800 NOTE: A new “out-of-box” cell may cause the voltage to be lower than normal for a short period of time. To obtain a more accurate measurement, “age” the cell by applying high voltage to the cell for 15 to 30 minutes. If voltage is below 6100 VDC, check cell for foreign objects, bowed/bent/loose plates, broken ionizing wires or cracked insulators. Wash cells if required. If Operating Light remains OFF, replace collecting cell. 12 OZONE REDUCTION All electronic air cleaners typically produce a small amount of ozone that is within established limits. Some customers may notice an odor especially at high altitudes or low air flow rates. This power supply has a “hairpin” shaped jumper wire labeled WI (see Fig 24) that can be cut and separated in case of such complaints. This will cause the power supply to limit the maximum operating power to a lower level. WHT/BRN Cut and separate Ozone Reduction Jumper BLK +2 LINE Ozone Reduction Jumper Figure 24

****** Page 13 ****** NOTES 13

****** Page 14 ****** REPAIR PARTS 11 12 13 15 000 14 14

****** Page 15 ****** REPAIR PARTS PARTS LIST FOR ELECTRONIC AIR CLEANERS When ordering repair parts, always give the following information as shown in this list. 1. 2. 3. 4. The PART NUMBER The PART DESCRIPTION The MODEL NUMBER The NAME OF ITEM Electronic Air Cleaner. Always order by “PART NUMBER” . Not by ITEM NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 DESCRIPTION Cabinet Pre-FiIter Collecting Cell Junction Box Cover * Screw x 3/8 Connector, Female Power Pack Assembly Cell Handle Ionizing Wire Light Switch Power Pack, Cabinet Only Connector, Male Power Supply Cover, Power Pack t Manual t Charcoal Filter (with mounting clips) ‘ITEM NUMBER” PART NUMBER 16C28s-010 N/A • 825-0337 F811-0321 838-0072 F818-0053 F858-0921 832-0039 F843-0500 F844-0131 876-0202 N/A F827-0026 858-1000 F820-0220 37-6070 • 825-0468 * Standard Hardware Item • Two (2) Required t Not Shown 15

****** Page 16 ****** NOTICE TO CONSUMERS White-Rodgers Electronic Air Cleaner Dear Consumer; White-Rodgers would like to thank you for purchasing a White-Rodgers Electronic Air Cleaner or product containing a White-Rodgers Electronic Air Cleaner. Although White- Rodgers does not extend a warranty directly to consumers, White-Rodgers does extend a warranty to Wholesalers and Original Equipment Manufacturers who use White-Rodgers Products. To obtain more information about how your Wholesaler or Original Equipment Manufacturer’s warranty may benefit you, please contact your Wholesaler or Original Equipment Manufacturer. Sincerely, White-Rodgers “WHITE-RODCERSE Controlling America’s Indoor Comfort White-Rodgers Division, Emerson Electric Co. 9797 Reavis Road, St. Louis, MO 63123-5398 314-577-1300 FAX 314-577-1517








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