Johnson Controls DSH024C Series - Page 6

6
FORM 145.32-IOM5
ISSUE DATE: 04/08/2019
SECTION 2 – STARTUP AND OPERATION ..........................................................................................................39
Checking Superheat and Subcooling .................................................................................................... 39
Startup (Cooling) ...................................................................................................................................40
Microprocessor Controller ..............................................................................................................................41
Temperature Sensors ............................................................................................................................41
USB Port ...............................................................................................................................................41
LCD Display ..........................................................................................................................................41
Safety Monitoring ..................................................................................................................................41
Low Ambient .......................................................................................................................................... 41
Anti-Short Cycle Delay (ASCD) Protection ............................................................................................41
Fan Delays ............................................................................................................................................41
Nuisance Trip Protection and Three Strikes .......................................................................................... 41
Lead-Lag ...............................................................................................................................................41
Condensate Overow Switch ................................................................................................................42
Operation ...............................................................................................................................................42
SECTION 3 – MAINTENANCE AND SERVICE ......................................................................................................43
Evaporator and Condenser Coils ...................................................................................................................43
Refrigerant Circuits ........................................................................................................................................43
Blowers ..........................................................................................................................................................43
Drive Belts .....................................................................................................................................................43
Filters ..............................................................................................................................................................43
APPENDIX: WIRING DIAGRAMS .......................................................................................................................... 45
R-410A QUICK REFERENCE GUIDE ....................................................................................................................51