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TABLE OF CONTENTS
WARRANTY AND RETURN POLICY ................................................................................................................................................................................................... 3
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 ........................................................................................................................................................................................................................... 5
Phase Monitor (N360X46GXXX only) .............................................................................................................................................................................. 5
460 V to 230 V Transformer (N360X46GXXX only) ....................................................................................................................................................... 5
115/230 V to 10 V Transformer (optional) ...................................................................................................................................................................... 5
115/230 V to 24 V Transformer and Relay (optional) .................................................................................................................................................... 5
Schematics and Wiring Diagrams for Thermostat Control .................................................................................................................................................... 6
N36 1-Phase Generic Schematic (actual unit options may vary) ................................................................................................................................. 6
N36 8K BTU 230V Only Schematic (Actual Unit Options May Vary) ............................................................................................................................ 6
N36 3-Phase Generic Schematic (actual unit options may vary) ................................................................................................................................. 6
N36 1-Phase Generic Wire Diagram (actual unit options may vary) ............................................................................................................................ 8
N36 8K BTU 230V Only Wire Diagram (actual unit options may vary) ......................................................................................................................... 9
N36 3-Phase Generic Wire Diagram (actual unit options may vary) .......................................................................................................................... 10
DIMENSIONAL DRAWINGS .............................................................................................................................................................................................................. 11
With Thermostats..................................................................................................................................................................................................................... 11
INSTALLATION INSTRUCTIONS ...................................................................................................................................................................................................... 12
DIGITAL THERMOSTAT CONTROLLER (OPTIONAL) ..................................................................................................................................................................... 13
Overview.................................................................................................................................................................................................................................... 13
ENERGIZING THE CONTROLLER ............................................................................................................................................................................................ 13
CONTROL STATUS INDICATION ............................................................................................................................................................................................. 13
DISPLAYING AND CHANGING PROGRAM Settings .............................................................................................................................................................. 16
To view or access the settings ....................................................................................................................................................................................... 16
Heat/Cool Operating Parameters ........................................................................................................................................................................................... 16
Alarm Parameters .................................................................................................................................................................................................................... 16
DISPLAYING TEMPERATURE DATA ON SCREEN .................................................................................................................................................................. 18
COMPRESSOR RESTART TIME DELAY................................................................................................................................................................................... 18
ALARM OUTPUT CONTACT .................................................................................................................................................................................................... 18
ALARM INPUT CONNECTION ................................................................................................................................................................................................. 18
PRIMARY-SECONDARY (PS) MODE ....................................................................................................................................................................................... 19
Connecting units together in Primary/Secondary mode ...................................................................................................................................................... 19
Connecting units together in Lead/Lag mode ....................................................................................................................................................................... 20
AIR CONDITIONER UNIT REMOTE COMMUNICATION FEATURES ...................................................................................................................................... 21
USB COMMUNICATION .................................................................................................................................................................................................. 21
ETHERNET COMMUNICATION ...................................................................................................................................................................................... 21
USING HOFFMAN PC INTERFACE TOOL ............................................................................................................................................................................... 22
USB COMMUNICATION MODE ...................................................................................................................................................................................... 22
USB COMMUNICATION MODE ...................................................................................................................................................................................... 23
ETHERNET COMMUNICATION MODE .......................................................................................................................................................................... 24
REMOTE ACCESS CONTROL PIN-OUT ................................................................................................................................................................................... 25
Schematic and Wiring Diagram for Remote Access Control ........................................................................................................................................................ 26
N36 1-Phase Generic Schematic (actual unit options may vary) ............................................................................................................................... 26
N36 8K BTU 230V Only Schematic (Actual Unit Options May Vary) .......................................................................................................................... 26
N36 3-Phase Generic Schematic (actual unit options may vary) ............................................................................................................................... 27
N36 1-Phase Generic Wire Diagram for Remote Access Control (actualunit options may vary) ........................................................................... 28
N36 8K BTU 230V Only Wire Diagram (actual unit options may vary) ....................................................................................................................... 29
N36 3-Phase Generic Wire Diagram for Remote Access Control (actualunit options may vary) ........................................................................... 30
DIMENSIONAL DRAWINGS .............................................................................................................................................................................................................. 31
N36 Generic Model Drawing With Remote Access Control ................................................................................................................................................. 31
INSTALLATION INSTRUCTIONS WITH REMOTE ACCESS CONTROL .......................................................................................................................................... 32
MAINTENANCE ................................................................................................................................................................................................................................. 33
Compressor .............................................................................................................................................................................................................................. 33
Inlet Air Filter ............................................................................................................................................................................................................................. 33
How To Remove, Clean or Install a New Inlet Air Filter ......................................................................................................................................................... 33
Condenser and Evaporator Air Movers .................................................................................................................................................................................. 34
Refrigerant Loss ....................................................................................................................................................................................................................... 34
Refrigerant Properties Chart (R 134a) .................................................................................................................................................................................... 35
Functional Data ........................................................................................................................................................................................................................ 35
6000 BTU/Hr. Unit Characteristics ......................................................................................................................................................................................... 36
8000 BTU/Hr. Unit Characteristics ......................................................................................................................................................................................... 37
SERVICE DATA ................................................................................................................................................................................................................................... 38
6000 BTU/Hr. Components List .............................................................................................................................................................................................. 38
8000 BTU/Hr. Components List .............................................................................................................................................................................................. 38
Controller Components List .................................................................................................................................................................................................... 39
F-GAS INFORMATION ....................................................................................................................................................................................................................... 39
TROUBLE SHOOTING ....................................................................................................................................................................................................................... 40
Basic Air Conditioning Trouble Shooting Check List - Thermostat Version ........................................................................................................................ 40
Symptoms and Possible Causes - Thermostat Version ....................................................................................................................................................... 41
Basic Air Conditioning Trouble Shooting Check List - Remote Access Control Version ................................................................................................... 42
Symptoms and Possible Causes - Remote Access Control Version ................................................................................................................................... 43
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