Instruction/ maintenance manual of the product 341426-BIM-A-0108 Johnson Controls
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CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 APPROVALS .
341426-BIM-A-0108 2 Johnson Controls Unitary Products T A BLE OF CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 RENEWAL PARTS .
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 3 GENERAL Model DY A units are cooling/hea ting air conditioners designed for outdoor installation. Only gas pipi ng, electric power and duct connection s are required at th e point of installation.
341426-BIM-A-0108 4 Johnson Controls Unitary Products INST ALLA TION LIMIT A TIONS These units must be installed in accordance with the follow- ing national and loca l safety codes. 1. National Electrical Code ANSI/NFPS No. 70 or Canadi an Electrical Code Part 1, C22.
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 5 CLEARANCES All units require certain clearances for proper operation an d service. Refer to T able 10 for the clearances required for combustion, construction, serv icin g and proper unit opera- tion.
341426-BIM-A-0108 6 Johnson Controls Unitary Products THERMOST A T The room thermostat should be locate d on an inside wall approximately 56" above the floor where it will not be subject to drafts, sun exposure or heat from electrical fixtures or appliances.
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 7 T ABLE 3: NA TURAL GAS APPLICA TION DA T A A V AILABLE ON MODELS INPUT CAPACITY (MBH) 1 OUTPUT CAPACITY (MBH) GAS RATE 2 FT.
341426-BIM-A-0108 8 Johnson Controls Unitary Products GAS PIPING Proper sizing of gas piping d epends on the cubic feet per hour of gas flow required, spec ific gravity of the gas and the length of run. National Fuel Gas Code Z223.1 o r CAN/CGA B149.1 or .
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 9 i 4. All piping should be cleaned of dirt and scale by ham- mering on the outside of the pipe and blowi ng out the loose dirt and scale. Before initial start-up, be sure that all of the gas l ines external to the u nit have been purged of air .
341426-BIM-A-0108 10 Johnson Controls Unitary Products T ABLE 7: PHYSICAL DA T A MODEL DY A 036 042 048 060 EV APOR A TOR BLOWER CENTRIFUGAL BLOWER (Dia. x W . in.) 1 1 x 10 1 1 x 10 12 x 1 1 12 x 1 1 F AN MOTOR HP (3 S p eed) 3/4 3/4 1 1 EV APOR A TOR COIL ROWS DEEP 2 3 3 3 FINS PER INCH 15 13 13 13 F ACE AREA (Sq.
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 11 FIGURE 7 - UNIT DIMEN SIONS - FRONT All dimensions are in inches. They are subject to change with- out notice.
341426-BIM-A-0108 12 Johnson Controls Unitary Products FIGURE 8 - UNIT DIMENSIONS - FRONT & BOTTOM 2 6 - 3 / 4 6 4 - 5 / 8 8 - 7 / 8 1 1 - 7 / 8 1 9 - 1 / 4 H I G H V O L T A G E C O N N . 1 - 3 / 3 2 " D I A . K N O C K O U T F R O N T C O N D E N S A T E D R A I N 3 / 4 " ' N P T I G A S S U P P L Y 1 - 5 / 8 " D I A .
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 13 SEQUENCE OF OPERA TION The unit is controlled b y a c onventional heating/cooling ther- mostat common to this class of equipment. HEA TING The control board begins a call for he at when W1 is ener- gized (connected to R).
341426-BIM-A-0108 14 Johnson Controls Unitary Products The control recognize s a call for 2nd stage heat when W2 is energized (connected to "R").
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 15 2. Pressure Switch (PS) - If the draft moto r should fail, the pressure switch prevents the ignition controls and gas valves from being energi zed. 3. Flame Sensor - The flame sensor and controls are located per Proper Fla me Adjustment, Figure 12 .
341426-BIM-A-0108 16 Johnson Controls Unitary Products 2. T urn off all electric power to the appliance if service is to be performed. 3. Remove the control access panel. 4. T urn the gas valve switch to the OFF position. DO NOT FORCE. 5. Replace the control access panel.
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 17 T o adjust the pilot flame: 1. Remove the pilot adjustment cover screw . 2. Adjust the pilot adjustment screw to achieve the p roper pilot flame. 3. Replace the pilot adjustment cover screw after the pilot flame is set.
341426-BIM-A-0108 18 Johnson Controls Unitary Products CHECKING SUPPLY AIR CFM To check the supply ai r CFM after the initial balancin g has been complete d: 1.
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 19 FIGURE 13 - DY A C OIL DELT A P VS. AIRFLOW 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 400 600 800 1000 1200 1400 1600 1800 2000 2200 Ai r f l o w ( .
341426-BIM-A-0108 20 Johnson Controls Unitary Products T ABLE 14: SUPERHEA T CHARGING T ABLE FOR DY A042 OUTDOOR TEMP . °F SUPERHEA T A T COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM INDOOR WB TEMP . (°F) 55 57 59 61 63 65 67 69 71 73 75 65 18.0 19.7 21.
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 21 FIGURE 14 - TYPICAL WIRING DIAGRAM DY A 036, 042, 048, 060 (208/2 3 0- 3-60 POWER SUPP L Y).
341426-BIM-A-0108 22 Johnson Controls Unitary Products FIGURE 15 - TYPICAL WIRING DIAGRAM DY A 03 6, 042, 048, 060 (460-3-60 POWER SUPPL Y).
341426-BIM-A-0108 Johnson Controls Unitary Produ cts 23 TYPICAL WIRING DIAGRAM NOTES (SEE FIGURES 14 AND 15) 1. All field wiring to be accomplished following ci ty , local and/or national codes in effect at time of installation of this unit. 2. Caution: Label all wires prior to disconnection when ser- vicing controls.
Subject to change without notice. Pr inted in U.S.A. 341426-BIM-A-0108 Copyright © 2008 b y Johnson Controls, Inc. All rig hts reserved. Supersedes: 284590-BIM-B-0807 Johnson Controls Unita ry Produc.
An important point after buying a device Johnson Controls 341426-BIM-A-0108 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Johnson Controls 341426-BIM-A-0108 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 Johnson Controls 341426-BIM-A-0108 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Johnson Controls 341426-BIM-A-0108 you will learn all the available features of the product, as well as information on its operation. The information that you get Johnson Controls 341426-BIM-A-0108 will certainly help you make a decision on the purchase.
If you already are a holder of Johnson Controls 341426-BIM-A-0108, 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 Johnson Controls 341426-BIM-A-0108.
However, one of the most important roles played by the user manual is to help in solving problems with Johnson Controls 341426-BIM-A-0108. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Johnson Controls 341426-BIM-A-0108 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
