FORM 150.67-NM2 (209)
9
JOHNSON CONTROLS
CHECKING INPUTS AND OUTPUTS .......................................................................................................181
Digital Inputs ......................................................................................................................................181
Analog Inputs – Temperature ...........................................................................................................181
Outside Air Sensor ............................................................................................................................181
Liquid & Refrigerant Sensor Test Points ........................................................................................182
Analog Inputs – Pressure .................................................................................................................183
Digital Outputs ...................................................................................................................................184
OPTIONAL PRINTER INSTALLATION .....................................................................................................185
Parts ....................................................................................................................................................185
The following parts are required: .....................................................................................................185
Assembly and Wiring ........................................................................................................................185
Obtaining a Printout ..........................................................................................................................185
TROUBLESHOOTING ..............................................................................................................................186
SECTION 10 – MAINTENANCE ......................................................................................................................189
IMPORTANT ..............................................................................................................................................189
COMPRESSORS .......................................................................................................................................189
Oil Level check ..................................................................................................................................189
Oil Analysis ........................................................................................................................................189
CONDENSER FAN MOTORS ...................................................................................................................189
CONDENSER COILS ................................................................................................................................189
OPERATING PARAMETERS ....................................................................................................................189
ON-BOARD BATTERY BACK-UP ............................................................................................................189
PLATE AND FRAME HEAT EXCHANGER (EVAPORATOR) HEATER ...................................................189
OVERALL UNIT INSPECTION..................................................................................................................189
ISN CONTROL ..........................................................................................................................................190
Received Data (Control Data) ...........................................................................................................190
Transmitted Data ...............................................................................................................................190
ISN Operational and Fault Codes .....................................................................................................192
BACNET AND MODBUS DATA COMMUNICATION ................................................................................193
Serial Communication Analog Value Data ......................................................................................196
Serial Communication Binary Value Data .......................................................................................196
Serial Communication Analog Input Data .......................................................................................196
Serial Communication Binary Input Data ........................................................................................198
TEMPERATURE CONVERSION CHART .................................................................................................199
R410-APRESSURE TEMPERATURE CHART .........................................................................................200
TABLE OF CONTENTS (CONT’D)
Summary of Contents for YCAL0019
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