Instruction/ maintenance manual of the product AH2-A Thermo Products
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MAC-165 ECN 4392-MA 10 & 12 SEER AIR HANDLER INSTALLATION & SERVICE MANUAL MODELS: AH1-A, AH2-A PLEASE READ THE SE INSTRUCT IONS PRIOR TO INSTALLAT ION AND BEFORE PERFORMING ANY SERVICE OR MAINTENANCE. THES E INSTRUCTIONS MUST BE LEFT WITH T HE USER AND SHOUL D BE RETAINE D FOR FUTURE REFERENCE BY QUALIFIED SERVICE PERSONNEL.
TABLE OF C ONTENTS SECTION B E G I N N I N G P A G E S A F E T Y S E C T I O N 1 KNOCKDOWN OF AIR HANDLER 3 REASSEMBLY OF AIR HANDL ER 3 I NSTALLATI ON OF A-COI L I N A VERTICAL APPLI CATION 3 I NSTAL.
All installatio ns and services must be performed by qualified personnel. 1 SAFETY SECTION This page contains various warning s and cautions found throughout this Service and Installation Manual. Please read and comp ly with t he statements on the cover and the statem ents below.
All installatio ns and services must be performed by qualified personnel. 2 I nstallation and service personnel are required by some states to be licensed.
All installatio ns and services must be performed by qualified personnel. 3 FOLLOW THESE STEP S FOR K NOCKDOWN OF AIR HAND LER: 1. Start with unit setting in a vertical position. (Fig ure A) 2. Remove screws from bottom door, middle door, top door, and top front panel.
All installatio ns and services must be performed by qualified personnel. 4 INSTALLATIONS OF A-COIL IN HORIZONTAL AP PLICATION For the AH1-A, in all A-coil applications (1024E, 1030E, 1036E, and 1224-30G1) except the 1236G1, the A-coil spacer must be used.
All installatio ns and services must be performed by qualified personnel. 5 13. Position grommets in coil access panel to allow installation of trim plate, secure trim plate in place with screws, and seal connections with duct sealer or equivalent. NOTE: The air handler is factory assembled for left to right(horizontal) and vertical applications.
All installatio ns and services must be performed by qualified personnel. 6 Figure B3 INSTALLATION OF THE HOT WATER COIL: 1. Remove top door of air handler. 2. Slide hot water c oil's side hang er brackets into coil c hannel(retaining channel) in the a ir handler.
All installatio ns and services must be performed by qualified personnel. 7 5. Make appropriate hy dronic connections to inlet(blower side) and outlet(duct side) of coil and braze into place. 6. Seal connections through panel with duct sealer or equivalent.
All installatio ns and services must be performed by qualified personnel. 8 1. Determine the appropriate blower spe ed settings listed in table s below. 2. Set the blower motor speed to match air conditioning requirement, connect the red wire(cooling tap) to the appropriate fan speed on the ter minal strip located on the blower( see Figure D).
All installatio ns and services must be performed by qualified personnel. 9 DUCT SYSTE M The duct sy stem and load sizing calculation should follow the design standards of Air Conditioning Contractors of America (ACCA) - manuals D & J - or the American Society of Heating, Refrige ration and Air Conditioning Engineers, I nc.
All installatio ns and services must be performed by qualified personnel. 10 CFM CAPACITY CHARTS AH 1- A .2 D u ct Sta tic Pr e ssu r e wit h heat ing c oi l A nd appli c abl e E v apor at or C oil M odel CFM (HI ) CFM (M.
All installatio ns and services must be performed by qualified personnel. 11 DUCT SIZES FOR HOMES Velocity Approximately 800 F eet Per Minute THE INDOOR EVAPORATOR COIL 1. EVAPORATOR COIL is a finned coil through which air in the home is circulated. Heat from the air is transfer red to the liquid refrig erant inside the e vaporator coil.
All installatio ns and services must be performed by qualified personnel. 12 TUBING LIN E SETS 1. SUCTION L INE is an insulated large copper tube connecting the outlet of the A/C evaporator to the suction inlet of the A/C CONDENSER.
All installatio ns and services must be performed by qualified personnel. 13 75’-100’ TOTAL LI NE LENGTH MODEL SUCTION LINE LIQUID LINE 1224 & 1230 1” 1/2” 1236 & 1242 1-1/8” 5/8” NOTES: For line lengths over 25’ adjust charge accordingly per foot of variation from chart.
All installatio ns and services must be performed by qualified personnel. 14 Fig ur e F 2. A trap is necessary in the suction line at the indoor evaporator coil if the indoor evaporator coil is more than 4 feet below the outdoor condensing unit. NOTE: Multiple suc tion line traps are re commended for long er or multiple horizontal line s.
All installatio ns and services must be performed by qualified personnel. 15 A gradual loop in the tubing can be constructed to take up the ex cess tubing if y ou find that too much tubing has been brought onto a job. Such a loop MUST be kept in a horizontal (flat) plane to avoid trapping the oil.
All installatio ns and services must be performed by qualified personnel. 16 Read th e temperat ure at header assemb ly t o calculate th e superheat. Then read the suction pressure and then add the line loss of 2 lbs. for 25’ of tubing. Then convert pressure into temperature.
All installatio ns and services must be performed by qualified personnel. 17 The following points must be checked by the inst aller and/or electri cian before the air conditioning sy stem is started: 1. Check every electrical connection of "PUSH-ON" or "S CREW -ON" terminal s to ensure it i s on tightly on its proper post.
All installatio ns and services must be performed by qualified personnel. 18 A return air opening can be cut in any of the four sides or the bottom of the UA cabinet. The AH AI R HANDLER is then placed on the UA adapter cabinet , inlet side down. The AH rests on t he support angles of the UA adapter cabinet.
All installatio ns and services must be performed by qualified personnel. 19 REPLACEMENT PARTS.
All installatio ns and services must be performed by qualified personnel. 20 AH2 - A Ai r Han d l e r wi t h HC2 - A Hy d r on i c Co i l O ut l et Ai r Tem er at ur e vs. H eat i n g C apaci t y ( GPM , PSI , Coi l Dr o p) 90 95 100 105 110 115 120 125 130 135 140 145 40 60 80 100 120 Heat i ng Capa c i t y ( M bt uh) Air Temp.
An important point after buying a device Thermo Products AH2-A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Thermo Products AH2-A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Thermo Products AH2-A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Thermo Products AH2-A you will learn all the available features of the product, as well as information on its operation. The information that you get Thermo Products AH2-A will certainly help you make a decision on the purchase.
If you already are a holder of Thermo Products AH2-A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Thermo Products AH2-A.
However, one of the most important roles played by the user manual is to help in solving problems with Thermo Products AH2-A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Thermo Products AH2-A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
