Johnson Controls AV*(C) Series - Manuals

Page 2 - Johnson Controls Unitary Products; SAFETY REQUIREMENTS; SECTION III: UNIT INSTALLATION; CLEARANCES; NOTICE

536636-UIM-D-1211 2 Johnson Controls Unitary Products 1. Install this air handler only in a location and position as specified inSECTION III of these instructions. 2. Always install the air handler to operate within the air handler’sintended maximum outlet air temperature. Only connect the airhandle...

Page 3 - DOWNFLOW AND HORIZONTAL CONVERSION; UPFLOW

536636-UIM-D-1211 Johnson Controls Unitary Products 3 DOWNFLOW AND HORIZONTAL CONVERSION (AV ONLY) These air handler units are supplied ready to be installed in a upflowand right hand horizontal position. If unit requires left hand positioning,the unit must have the coil assembly repositioned. 1. Re...

Page 4 - CLADDING CONFIGURATION FOR DOWNFLOW

536636-UIM-D-1211 4 Johnson Controls Unitary Products CLADDING CONFIGURATION FOR DOWNFLOW INSTALLATION (IF USED) To reconfigure the cladding parts, remove the grille by pulling gently atthe top. Once the grille is removed, the circuit breaker cover can also beremoved. Remove the gray, non-branded gr...

Page 5 - DUCT CONNECTIONS

536636-UIM-D-1211 Johnson Controls Unitary Products 5 DUCT CONNECTIONS Air supply and return may be handled in one of several ways bestsuited to the installation. See Figure 3 for dimensions for duct inlet andoutlet connections. The vast majority of problems encountered with combination heatingand c...

Page 6 - TXV METERING DEVICES

536636-UIM-D-1211 6 Johnson Controls Unitary Products TXV METERING DEVICES If the model (C) number is of the following format: 4F, 4G, 4H, 4J, and 4K will have the coil with R410A TXV metering device installed atthe factory. If the model (C) number is of the 3X model series: The coil will require an...

Page 7 - DRAIN CONNECTIONS; SECTION IV: ELECTRIC HEATER

536636-UIM-D-1211 Johnson Controls Unitary Products 7 DRAIN CONNECTIONS All drain lines should be trapped a minimum of three inches, should bepitched away from unit drain pan and should be no smaller than the coildrain connection. Route the drain line so that it does not interfere with accessibility...

Page 8 - CONVENTIONAL LOW VOLTAGE CONTROL WIRING; Terminal; Air Handler Control Wiring

536636-UIM-D-1211 8 Johnson Controls Unitary Products CONVENTIONAL LOW VOLTAGE CONTROL WIRING (24 VAC) The 24 volt power supply is provided by an internally wired low voltagetransformer which is standard on all models, However, if the unit is con-nected to a 208 volt power supply, the low voltage tr...

Page 9 - CONTROL WIRING USING COMMUNICATING; CONTROL WIRING - Air Handler & UPG HP Systems

536636-UIM-D-1211 Johnson Controls Unitary Products 9 . * Optional dehumidification humidistat switch contacts open on humidity rise. NOTES : 1. “Y/Y2” Terminal on air handler control board must be connected for full CFM and applications requiring 60 second blower off delay for SEER enhancement.2. R...

Page 10 - SECTION VI: REQUIRED CONTROL; FUNCTIONALITY AND OPERATION

536636-UIM-D-1211 10 Johnson Controls Unitary Products The low voltage connections may be connected to the screw terminalsor the quick connect terminals. The screw terminals and the quick con-nect terminals are physically connected on the control board. SECTION VI: REQUIRED CONTROL SET-UP 1. Consult...

Page 11 - Limit Switch and Lockout Operation; SECTION VII: LINE POWER

536636-UIM-D-1211 Johnson Controls Unitary Products 11 The control energizes the first stage of electric heat immediately, thesecond stage 10 seconds after the call for second stage heat, and thethird stage 20 seconds after the call for third stage heat. Depending on the heat kit installed in the ai...

Page 12 - SECTION VIII: AIRFLOW AND COMFORT; AIRFLOW SELECTION; Dry; Temperate; SECTION IX: UNIT DATA; DELAY TAP

536636-UIM-D-1211 12 Johnson Controls Unitary Products SECTION VIII: AIRFLOW AND COMFORT SETTING SELECTION AIRFLOW SELECTION The airflow and comfort setting selection jumpers must be set properlyat the time of installation for proper system operation. Place jumpers inthe proper locations based on th...

Page 16 - HIGH/LOW SPEED COOLING AND HEAT PUMP AIRFLOW

536636-UIM-D-1211 16 Johnson Controls Unitary Products TABLE 16: Air Handler Air Flow Data HIGH/LOW SPEED COOLING AND HEAT PUMP AIRFLOW CFM m 3 /min JUMPER SETTINGS 24B 36C 24B 36C High Low High Low High Low High Low COOL Tap ADJ Tap 1088 707 1387 905 30.8 20.0 39.3 25.6 A B 830 542 1151 753 23.5 15...

Page 17 - SECTION X: MAINTENANCE; COIL CLEANING; CONDENSATE DRAINS

536636-UIM-D-1211 Johnson Controls Unitary Products 17 SECTION X: MAINTENANCE Filters must be cleaned or replaced when they become dirty. Inspect atleast once per month. The frequency of cleaning depends upon thehours of operation and the local atmospheric conditions. Clean filterskeep unit efficien...

Page 18 - SECTION XI: WIRING DIAGRAM

Subject to change without notice. Published in U.S.A. 536636-UIM-D-1211 Copyright © 2011 by Johnson Controls, Inc. All rights reserved. Supersedes: 536636-UIM-C-1010 Johnson Controls Unitary Products 5005 York Drive Norman, OK 73069 SECTION XI: WIRING DIAGRAM FIGURE 16: Wiring Diagram