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INSTALLATION MANUAL
R-410A
OUTDOOR SPLIT-SYSTEM
AIR CONDITIONING
ISO 9001
Certified Quality
LISTED
Management System
MODELS: 16 SEER - CZF / AC6B / AL6B SERIES
2 TO 5 TONS
TABLE OF CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INSTRUCTING THE OWNER . . . . . . . . . . . . .
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562156-UIM-A-0610 5. The unit should not be operated at outdoor temperatures below 65° F without an approved low ambient operation accessory kit installed. 6. The maximum allowable line length for this product is 75 feet. Improper installation may create a condition where the operation of the product could cause personal injury or property damage. SECTION III: UNIT INSTALLATION Improper installation, adjustment, alteration, service, or mainte- LOCATION nance can cause injury or property damage.
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562156-UIM-A-0610 THERMOSTAT 60” OVERHEAD NEC CLASS 1 CLEARANCE WIRING TO INDOOR NEC CLASS 2 BLOWER WEATHERPROOF WIRING DISCONNECT SWITCH TO COIL 24” SERVICE ACCESS CLEARANCE SEAL OPENINGS WITH PERMAGUM OR EQUIVALENT 10” COIL NOTE: ALL OUTDOOR WIRING CLEARANCE AREA MUST BE WEATHERPROOF FIGURE 1: Typical Installation with Required Clearances GROUND INSTALLATION TXV INSTALLATIONS The unit may be installed at ground level on a solid base that will not The following are the basic steps for install
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562156-UIM-A-0610 The outdoor condensing unit must be connected to the indoor evapora- TO INDOOR TO OUTDOOR tor coil using field supplied refrigerant grade copper tubing that is inter- COIL COIL nally clean and dry. Units should be installed only with the tubing sizes LIQUID for approved system combinations as specified in tabular data sheet. INSULATED LINE CAP The charge given is applicable for total tubing lengths up to 15 feet. See VAPOR LINE Application Data Part Number 247077 for installing
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562156-UIM-A-0610 2. Remove the cap and Schrader core from both the liquid and vapor 8. Protect the vapor valve with a wet rag and braze the vapor line con- service valve service ports at the outdoor unit. Connect low pressure nection to the outdoor unit. The nitrogen flow should be exiting the nitrogen to the liquid line service port. system from the vapor service port connection. After this connection has cooled, remove the nitrogen source from the liquid fitting service 3. Braze the liquid li
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562156-UIM-A-0610 FIELD CONNECTIONS POWER WIRING 1. Install the proper size weatherproof disconnect switch outdoors and NOTICE within sight of the unit. To eliminate erratic operation, seal the hole in the wall at the ther- 2. Remove the screws at the bottom of the corner cover. Slide corner mostat with permagum or equivalent to prevent air drafts affecting the operation of the thermostat. cover down and remove from unit. See Figure 5 "Typical Field Wir- ing". FIELD CONNECTIONS CONTROL WIRING 3.
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562156-UIM-A-0610 CFM SELECTION BOARD SETTINGS If a dehumidification control is installed, it is recommended that a mini- mum air flow of 325 cfm/ton be supplied at all times. For proper system operation the CFM Selection Board jumpers must be set properly. Touch Screen Air Handler/Furnace Air Conditioner Refer to the Tech Guide for the recommended air flow settings for each Communicating Communicating Communicating size condensing unit and matchup. Control Control Control Set the cooling speed
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562156-UIM-A-0610 For additional connection diagrams for all UPG equipment refer to “Low Voltage System Wiring” document available online at www.upgnet.com in the Product Catalog Section.
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562156-UIM-A-0610 / / + -++ /-0 2!+! *+ ,( - - 2- 2+2- /-0 ( 2!+! - 2- -2+2- 2+- (. / (. / (. / $ $"$( $ % & )
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562156-UIM-A-0610 8$FF9GB $8CF9 +GB $B +G8CF9 +B + -++ 8$FF9GCF9 2!+! ,+2! *+ ,( - %,-2 2+2- ( ,+2! 2!+! %,-22+- -2+2- (. / (. / (. / $ $ $ % & % & % & - - - (. / (. / (. / $( ! ! )
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562156-UIM-A-0610 Subcooling Charging Method SECTION VI: SYSTEM CHARGE This condensing unit must only be used with the matching thermostatic expansion valve kit listed in the Tabular Data Sheet. This unit must be charged during cooling operation (Y1) operation only. Charging should be matched per the subcooling chart located on the rating plate. Refrigerant charging should only be carried out by a qualified air conditioning contractor. 1. Set the system running in the cooling (Y1) cooling mode b
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562156-UIM-A-0610 5. The indoor coil and drain pan should be inspected and cleaned reg- ularly to prevent odors and assure proper drainage. NOTICE On 5 Ton unit the outdoor fan motor is a permanent magnet DC brushless type. The motor requires a separate Electronic Control to operate. Do not attempt to replace this motor with a typical PSC Do not connect manifold gauges unless trouble is suspected. type. Damage to Electronic Control may result. Approximately 3/4 ounce of refrigerant will be lost
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562156-UIM-A-0610 TABLE 2: TEST Input Functionality Duration of Control Behavior with no system Control behavior with system connection (seconds) master signals present master signals present < 2 No response No response Bypass ASCD (Reduce timer to zero immediately). Display compressor type TS, Ultratech, or If Y1 (thermostat or communication) is present and the single stage compressor, Ignore LPS high-pressure switch is closed, contactors will be energized. Clear soft lockout Clear soft lock
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562156-UIM-A-0610 FAULT CODE DISPLAY LOCKOUT MODES The control will display any fault code that is currently active using the Soft Lockout LED’s. The control will display the fault code, pause two seconds, and The control will cause a soft lockout during the following conditions. display the fault again. The control will continue the fault code display Detailed descriptions of the conditions required for the control to enter until the condition that caused the fault code no longer exists. If mul
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562156-UIM-A-0610 COOLING OPERATION When the compressor is started following a high-pressure switch fault, the control will start a six-hour timer based on accumulated compressor First-Stage Cooling Operation run time. If the control senses another opening of the high-pressure During first-stage cooling operation, the control will receive a thermostat switch before the timer expires, it will cause a soft lockout condition. signal at the Y1 terminal. The control will energize the M compressor The
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562156-UIM-A-0610 SECTION IX: WIRING DIAGRAM FIGURE 13: Wiring Diagram (2 - 4 Ton) 16 Johnson Controls Unitary Products
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562156-UIM-A-0610 FIGURE 14: Wiring Diagram (5 Ton) Johnson Controls Unitary Products 17
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NOTES Subject to change without notice. Published in U.S.A. 562156-UIM-A-0610 Copyright © 2010 by Johnson Controls, Inc. All rights reserved. Supersedes: Nothing Johnson Controls Unitary Products 5005 York Drive Norman, OK 73069
