© 2014 Pentair Equipment Protection
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TABLE OF CONTENTS
RECEIVING THE AIR CONDITIONER ............................................................................................................................................................................... 3
HANDLING AND TESTING THE AIR CONDITIONER ......................................................................................................................................................3
HOW TO READ MODEL NUMBERS ................................................................................................................................................................................. 3
TECHNICAL INFORMATION ............................................................................................................................................................................................4
Sequence of Operation ..........................................................................................................................................................................................................................4
Heating..........................................................................................................................................................................................................................................4
Cooling .......................................................................................................................................................................................................................................... 4
Standard and Optional Component Operation .....................................................................................................................................................................................4
Thermostat ...................................................................................................................................................................................................................................4
Remote Access Control (optional) ...............................................................................................................................................................................................4
Head Pressure Control ................................................................................................................................................................................................................4
Contactor (115V 12000 BTU/Hr. Units only) .................................................................................................................................................................................4
Contactor (460V Units only) ..........................................................................................................................................................................................................4
Overload (460V Units only) ...........................................................................................................................................................................................................4
Phase Monitor ..............................................................................................................................................................................................................................5
460V to 230V Transformer ............................................................................................................................................................................................................5
115V to 10V or 230V to 10V Transformer (optional).....................................................................................................................................................................5
115V to 24V or 230V to 24V Transformer and Relay (optional) ...................................................................................................................................................5
Schematics and Wiring Diagrams for Thermostat Control .................................................................................................................................................................5
G521216GXXX Generic Schematic (actual unit options may vary) .............................................................................................................................................. 5
G52 All Other Generic 1-Phase Schematic (actual unit options may vary) ................................................................................................................................6
G52 Generic 3-Phase Schematic (actual unit options may vary) ...............................................................................................................................................6
G521216GXXX Generic Wire Diagram (actual unit options may vary) ........................................................................................................................................7
G52 All Other Generic 1-Phase Wire Diagram (actual unit options may vary) ..........................................................................................................................8
G52 Generic 3-Phase Wire Diagram (actual unit options may vary) .......................................................................................................................................... 9
INSTALLATION INSTRUCTIONS....................................................................................................................................................................................10
DIMENSIONAL DRAWINGS ........................................................................................................................................................................................... 10
8000 BTU/Hr. With Thermostats ......................................................................................................................................................................................................... 10
12000 BTU/Hr. With Thermostats ....................................................................................................................................................................................................... 11
8000-12000 BTU/Hr. (G520846G05X, G521246G05X) With Thermostats ........................................................................................................................................... 11
8000 BTU/Hr. (G520846G15X) With Thermostats ............................................................................................................................................................................... 12
12000 BTU/Hr. (G521246G15X) With Thermostats .............................................................................................................................................................................12
REMOTE ACCESS CONTROL (optional) ........................................................................................................................................................................14
INTRODUCTION ...................................................................................................................................................................................................................................14
ENERGIZING THE CONTROLLER........................................................................................................................................................................................................14
CONTROL STATUS INDICATION ..........................................................................................................................................................................................................14
DISPLAYING AND CHANGING PROGRAM VARIABLES ...................................................................................................................................................................... 15
OPERATING PARAMETERS .................................................................................................................................................................................................................15
ALARM PARAMETERS .........................................................................................................................................................................................................................15
DISPLAYING TEMPERATURE SENSOR #2 .........................................................................................................................................................................................15
COMPRESSOR RESTART TIME DELAY ...............................................................................................................................................................................................15
ALARM OUTPUT CONTACT .................................................................................................................................................................................................................15
ALARM INPUT CONNECTION .............................................................................................................................................................................................................16
ALARM CONDITION DISPLAY..............................................................................................................................................................................................................16
AIR CONDITIONER UNIT COMMUNICATION FEATURES ................................................................................................................................................................... 16
USB COMMUNICATION .............................................................................................................................................................................................................. 16
ETHERNET COMMUNICATION ..................................................................................................................................................................................................16
USING THE PC INTERFACE TOOL .......................................................................................................................................................................................................17
USB COMMUNICATION MODE ...................................................................................................................................................................................................17
ETHERNET COMMUNICATION MODE .......................................................................................................................................................................................18
Remote Access Control Pin-out ..........................................................................................................................................................................................................19
Schematic and Wiring Diagram for Remote Access Control ............................................................................................................................................................. 20
G52 1-Phase Generic Schematic (actual unit options may vary) .............................................................................................................................................20
G52 Generic 3-Phase Schematic (actual unit options may vary) .............................................................................................................................................21
G52 Generic Wire Diagram for Remote Access Control (actual unit options may vary) .........................................................................................................22
G52 Generic 3-Phase Wire Diagram for Remote Access Control (actual unit options may vary) ...........................................................................................23
DIMENSIONAL DRAWINGS ........................................................................................................................................................................................... 24
G52 Generic Model Drawing With Remote Access Control ...............................................................................................................................................................24
INSTALLATION INSTRUCTIONS WITH REMOTE ACCESS CONTROL ..........................................................................................................................25
MAINTENANCE .............................................................................................................................................................................................................26
Compressor .........................................................................................................................................................................................................................................26
Inlet Air Filter .......................................................................................................................................................................................................................................26
How To Remove, Clean or Install a New Inlet Air Filter .....................................................................................................................................................................26
Condenser and Evaporator Air Movers ..............................................................................................................................................................................................27
Refrigerant Loss .................................................................................................................................................................................................................................. 27
Refrigerant Properties Chart (R 134a) ................................................................................................................................................................................................28
Functional Data....................................................................................................................................................................................................................................28
8000 BTU/Hr. Unit Characteristics ......................................................................................................................................................................................................29
12000 BTU/Hr. Unit Characteristics ....................................................................................................................................................................................................30
SERVICE DATA ...............................................................................................................................................................................................................31
Components List .................................................................................................................................................................................................................................31
TROUBLE SHOOTING .................................................................................................................................................................................................... 32
Basic Air Conditioning Trouble Shooting Check List - Thermostat Version .....................................................................................................................................32
Symptoms and Possible Causes - Thermostat Version .....................................................................................................................................................................33
Basic Air Conditioning Trouble Shooting Check List - Remote Access Control Version ..................................................................................................................34
Symptoms and Possible Causes - Remote Access Control Version .................................................................................................................................................35
WARRANTY .................................................................................................................................................................................................................... 38
RETURN AND REPAIR POLICY .....................................................................................................................................................................................38
LIMITATION OF LIABILITY ............................................................................................................................................................................................. 39
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