Johnson Controls RHP143 Series User Manual

Contents
Contents
General......................................................................................5
Safety.........................................................................................5
Inspection........................................................................... 5
Requirements for installing/servicing R-410A
equipment...........................................................................5
Limitations.......................................................................... 5
Unit installation........................................................................ 6
Location...............................................................................6
Add-on replacement/retrofit............................................6
Ground installation............................................................ 8
Roof installation................................................................. 8
Wall mount installation..................................................... 8
Unit placement................................................................... 9
Liquid line filter-drier.........................................................9
Piping connections.............................................................9
Precautions during line installation...............................10
Precautions during brazing of lines...............................10
Precautions during brazing of service valve.................10
Connecting the refrigerant lines.............................. 11
Indoor expansion device.......................................................12
Thermostatic expansion valve (TXV) installation......... 12
Evacuation...............................................................................13
System charge........................................................................13
Measuring indoor airflow............................................... 14
Charging the unit............................................................. 14
Determining the total system charge............................14
Charging with gauges..................................................... 15
Subcooling charging charts...................................... 15
Heating charging charts............................................21
Electrical connections............................................................27
General information and grounding............................. 27
Field connections power wiring..................................... 28
Field connections control wiring....................................28
Control wiring diagrams........................................... 30
Dehumidification control (typical)................................. 32
Indoor cubic feet per minute (CFM) settings
(typical)..............................................................................32
System start-up...................................................................... 33
Energize crankcase heater (where applicable)............ 33
System operation...................................................................33
Anti short-cycle delay...................................................... 33
Low voltage detection..................................................... 33
Test input.......................................................................... 33
Fault code display............................................................ 35
Demand defrost......................................................... 36
Operation.................................................................... 36
Defrost curves.............................................................36
Defrost curve selection..............................................36
Defrost cycle initiation...............................................36
Defrost inhibition....................................................... 36
Defrost termination................................................... 37
Cooling operation...................................................... 37
Heating operation......................................................37
Emergency heat......................................................... 37
Pressure switch fault and lockout............................37
Instructing the owner............................................................37
Maintenance.....................................................................38
Wiring diagrams.....................................................................39
Start-up sheet.........................................................................42
Johnson Controls Ducted Systems
R-410A Outdoor Split-System Heat Pump Installation Manual - YH2E / THE2 / RHP143 Series
3

Johnson Controls RHP143 Series Specifications

General

Brand	Johnson Controls
Model	RHP143 Series
Category	Heat Pump
Language	English