508067-01 Issue 2016 Page 1 of 75
SERVICE MANUAL
4DHV Mini-Split Series
(P) 508067-01
*P508067-01*
This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to
the potential for personal injury or death.
4DHV Single Zone Air
Conditioning Outdoor Unit
DWH Wall Mount Single Zone
Air Conditioning Indoor Unit
Table of Contents
Model Number Identication ........................................2
Specications - Outdoor Units .....................................3
Specications - Wall Mounted Indoor Units .................4
Dimensions - Outdoor Units - inches (MM) .................5
Dimensions - Wall Mounted Indoor Units - Inches (MM)
.....................................................................................7
Dimensions - Wall Mounted Indoor Units - Wall Plates -
Inches (MM) .................................................................8
AHRI System Matches ................................................9
Refrigeration Pipe Work ............................................11
Outdoor Unit Connections and Line Set Usage.........13
Power and Communication Wiring for Systems ........22
Wiring Diagrams ........................................................24
Wireless Remote .......................................................28
Connection to Centralized Controller.........................31
Installation Requirements ..........................................34
Electronic Function ....................................................36
Adding Refrigerant - Single-Zone Systems ...............36
Single-Zone Outdoor Unit LED Locations .................36
Specications and Operations ...................................37
Indoor and Outdoor Unit Disassembly.......................41
Indoor / Outdoor Unit Error Codes.............................58
Troubleshooting by Error Codes ................................59
Error Codes ...............................................................61
Temperature Sensor Resistance Values ...................73
Discharge Temperature Sensor Resistance Values ..74
Pressure on Service Port (R-410A) ...........................75
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