Instruction/ maintenance manual of the product 340968-XIM-A-0108 Johnson Controls
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CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 RENEWAL PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 APPROVALS .
340968-XIM-A-0108 2 Johnson Controls Unitary Products T A BLE OF CONTENTS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 RENEWAL PARTS .
340968-XIM-A-0108 Johnson Controls Unitary Produ cts 3 GENERAL YORK Model DNA units are cooling/heating air conditioners designed for outdoor installation. Only gas pipi ng, electric power and duct connection s are required at th e point of installation.
340968-XIM-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.
340968-XIM-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.
340968-XIM-A-0108 6 Johnson Controls Unitary Products SERVICE ACCESS Access to all serviceable components is provided by the fol- lowing removable panels: • Blower compartment • Gas contro l/ el e c tr ical service access Refer to Figure 7 for location of these access panels and min- imum clearances.
340968-XIM-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 (MBH) 1 OUTPUT (MBH) GAS RATE 2 FT.
340968-XIM-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 .
340968-XIM-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 .
340968-XIM-A-0108 10 Johnson Controls Unitary Products T ABLE 7: PHYSICAL DA T A MODEL DNA 018 024 030 036 042 048 060 EV APORA TOR BLOWER CENTRIFUGAL BLOWER (Dia.
340968-XIM-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.
340968-XIM-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 .
340968-XIM-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).
340968-XIM-A-0108 14 Johnson Controls Unitary Products The control recognize s a call for 2nd stage heat when W2 is energized (connected to "R").
340968-XIM-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 .
340968-XIM-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.
340968-XIM-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.
340968-XIM-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.
340968-XIM-A-0108 Johnson Controls Unitary Produ cts 19 FIGURE 13 - DNA COIL DELTA P VS. AIRFLOW DNA018 DNA024-30 DNA042 DNA048-60 ID Coil Delta P DNA Coil Delta P vs Airflow Airflow (CFM) DNA036 DNA024-30 DNA036 DNA042 DNA048-60 DNA018 400 600 800 1600 1200 1400 2000 1000 2200 1800 0.
340968-XIM-A-0108 20 Johnson Controls Unitary Products T ABLE 14: SUPERHEA T CHARGING T ABLE FOR DNA024 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 13.9 16.5 19.
340968-XIM-A-0108 Johnson Controls Unitary Produ cts 21 T ABLE 17: SUPERHEA T CHARGING T ABLE FOR DNA042 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.
340968-XIM-A-0108 22 Johnson Controls Unitary Products FIGURE 14: TYPICAL WIR ING DIAGRAM DNA 018 THRU 060 (208/230-1-60 POWER SUPPL Y).
340968-XIM-A-0108 Johnson Controls Unitary Produ cts 23 TYPICAL WIRING DIAGRAM NOTES (SEE FIGURE 14) 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. 340968-XIM-A-0108 Copyright © 2008 b y Johnson Controls, Inc. All rig hts reserved. Supersedes: 286483-XIM-B-0807 Johnson Controls Unita ry Produc.
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If you already are a holder of Johnson Controls 340968-XIM-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 340968-XIM-A-0108.
However, one of the most important roles played by the user manual is to help in solving problems with Johnson Controls 340968-XIM-A-0108. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Johnson Controls 340968-XIM-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
