Instruction/ maintenance manual of the product AV*(C) Series Johnson Controls
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536636-UIM-D-1211 SINGLE PIECE V ARIABLE SPEED AIR HANDLERS MODELS: A V*(C) SERIES INSTALLATION MANUAL ISO 9001 Certified Quality Management System LIST OF SECTIONS GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
536636-UIM-D-1211 2 Johnson Controls Unitary Products 1. Install this air handler only in a location and position as specified in SECTION III of these instructions. 2. Always install the air handler to operate within the air handler’s intended maximum outlet air t emperature.
536636-UIM-D-1211 Johnson Controls Unitary Produ cts 3 DOWNFL OW AND HORIZONT AL CONVERSION (A V ONL Y) These air handler units are supplied ready to be installed in a upflow and right hand horizontal position. If unit requires left hand positioning, the unit must have the coil assembly repositioned.
536636-UIM-D-1211 4 Johnson Controls Unitary Products CLADDING CONFIGURA TION FOR DOWNF LO W INST ALLA TION (IF USED) T o reconfigure the cladding parts, remove the grille by pulling gently at the top. Once the grille is removed, the circuit breaker cover can also be removed.
536636-UIM-D-1211 Johnson Controls Unitary Produ cts 5 DUCT CONNECTIONS Air supply and return may be handled in one of several ways best suited to the installation.
536636-UIM-D-1211 6 Johnson Controls Unitary Products TXV METERING D EVICES If the model (C) numb er is of the following format: 4F , 4G , 4H, 4J, and 4K will have the coil with R410A TXV metering device installed at the factory .
536636-UIM-D-1211 Johnson Controls Unitary Produ cts 7 DRAIN CONNECTIONS All drain lines should be trapped a minimum of three inches, should be pitched away from unit drain pan and should be no smaller than the coil drain connection.
536636-UIM-D-1211 8 Johnson Controls Unitary Products CONVENTIONAL L OW V OL T AGE CONTROL WIRING (24 V AC) The 24 volt power supply is provi ded by an int ernally wired low voltage transformer which .
536636-UIM-D-1211 Johnson Controls Unitary Produ cts 9 . * Optional dehumidificat ion hu midistat switch cont acts open on humidit y rise. NOTES : 1. “Y/Y2” T erminal on air handler control board must be con nected for full CFM and appli cations requiring 60 second blower of f delay for SEER enhancement.
536636-UIM-D-1211 10 Johnson Controls Unitary Products The low voltage connections may be connected to the screw terminals or the quick connect terminals. T he screw terminals and t he quick con- nect terminals are phy sically connected o n the control board.
536636-UIM-D-1211 Johnson Controls Unitary Produ cts 11 The control energizes the fir st stage of electric heat immediately , the second stage 10 seconds after the call for second st age heat, and the third stage 20 seconds after the call for third stage heat.
536636-UIM-D-1211 12 Johnson Controls Unitary Products SECTION VIII: AIRFLO W AND COMFORT SETTING SELECTION AIRFLOW SELECTION The airflow and comfort setting se lection jumpers must be set properly at the time of installation for proper system operation.
536636-UIM-D-1211 Johnson Controls Unitary Produ cts 13 * May be 0 (no breaker) or 1 (with breaker). TA B L E 8 : Elect rical Data - Cool ing Only (60 Hz) Models T otal Motor Amp s Minimum Circuit Ampacity Max. O.C.P . Amps/T ype 1 Minimum Wire Size A.
536636-UIM-D-1211 14 Johnson Controls Unitary Products * May be 0 (no breaker) or 1 (with breaker). TA B L E 11 : Electrical Data - (For Single Source Power Supply) - Copper W ire - 208/23 0-1-60 Models Heater Models* Heater Amps 240V Field Wiring Min.
536636-UIM-D-1211 Johnson Controls Unitary Produ cts 15 T ABLE 13: Electrical Data - 208/230-3 -60 Models Heat Kit - Three Phase Max. Stat ic Min. Spe ed Ta p To t a l H e a t 1 kW S taging kW MBH W1 Only W2 Only W1 + W2 208V 230V 208V 230V 208V 230V 208V 230V 208V 230V 24B 4HK06501025 0.
536636-UIM-D-1211 16 Johnson Controls Unitary Products T ABLE 16: Air Handler Air Flow Data HIGH/LOW SPEED COOLING AND HEA T PUMP AIRFLOW CFM m 3 /min JUMPER SETTINGS 24B 36C 24B 36C High Low High Low High Low High Low COOL T ap ADJ T ap 1088 707 1387 905 30.
536636-UIM-D-1211 Johnson Controls Unitary Produ cts 17 SECTION X: MAINTENANCE Filters must be cleaned or replaced when they become dirty . Inspect at least once per month. Th e frequency of cleaning depends upon the hours of operation and the local atmospheric conditions.
Subject to change without not ice. Published in U.S.A. 536636-UIM-D-1211 Copyright © 201 1 by Johnson Controls, In c. All ri ghts reserved. Supersedes: 536636-UIM-C-1010 Johnson Contro ls Unit a r y .
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