Johnson Controls YC2E User Manual

Contents
Contents
General......................................................................................5
Certification.............................................................................. 5
Safety.........................................................................................5
Inspection........................................................................... 5
Limitations.......................................................................... 5
Unit installation........................................................................ 6
Location...............................................................................6
Liquid line filter-drier.........................................................8
Filter-drier installation at outdoor unit......................8
Filter-drier installation at indoor coil......................... 8
Piping connections.............................................................9
Precautions during line installation.................................9
Precautions during brazing of lines...............................10
Precautions during brazing of service valve.................10
Connecting the refrigerant lines.............................. 10
Coil metering devices............................................................ 11
Installing a thermostatic expansion valve (TXV).......... 12
Evacuation...............................................................................13
System charge........................................................................13
Measuring indoor airflow............................................... 13
Charging the system........................................................14
Subcooling charging - TXV indoor................................. 15
R-410A saturation properties..........................................15
Optional cold weather charging.................................... 16
Electrical connections............................................................16
General information and grounding............................. 16
Field connections power wiring..................................... 17
Field connections control wiring....................................17
Field wiring..................................................................18
Instructing the user...............................................................19
Maintenance.....................................................................19
Wiring diagrams.....................................................................20
Start-up sheet.........................................................................21
Johnson Controls Ducted Systems
R-410A Outdoor Split-System Air Conditioning
3

Johnson Controls YC2E Specifications

General

Brand	Johnson Controls
Model	YC2E
Category	Air Conditioner
Language	English