Johnson Controls YC2D Series User Manual

Contents
Contents
General......................................................................................5
Certification.............................................................................. 5
Safety.........................................................................................5
Inspection........................................................................... 5
Limitations.......................................................................... 5
........................................................................................6
Unit installation........................................................................ 6
Location...............................................................................6
Liquid line filter-drier.........................................................8
Installing the filter-drier at outdoor unit...................8
Installing the filter-drier at indoor coil...................... 8
Piping connections.............................................................9
Precautions during line installation.................................9
Precautions during brazing of lines.................................9
Precautions during brazing of service valve.................10
Connecting the refrigerant lines.............................. 10
Coil metering devices............................................................ 11
Installing a thermostatic expansion valve (TXV).......... 11
Evacuation...............................................................................13
System charge........................................................................13
Measuring indoor airflow............................................... 13
Charging the system........................................................13
Subcooling charging - TXV indoor................................. 15
R-410A saturation properties..........................................15
Optional cold weather charging.................................... 16
............................................................................................16
Electrical connections............................................................16
General information and grounding............................. 16
Field connections power wiring..................................... 17
Field connections control wiring....................................18
Field wiring..................................................................18
Instructing the user...............................................................19
Maintenance.....................................................................19
............................................................................................19
Wiring diagrams.....................................................................20
Start-up sheet.........................................................................24
Johnson Controls Ducted Systems
Installation Manual: R-410A Outdoor Split-System Air Conditioner
3

Johnson Controls YC2D Series Specifications

General

Brand	Johnson Controls
Model	YC2D Series
Category	Air Conditioner
Language	English