Table of Contents
Advertisement
SECTION 5 - COMMISSIONING ............................................................................................................................77
General Guidelines for Use ............................................................................................................................ 77
Before Operation ...................................................................................................................................77
Precautions for The Use Of Water ................................................................................................................. 78
Chilled/Hot Water Outlet Temperature Controller ...........................................................................................78
Liquid Level Gauges ....................................................................................................................................... 78
Start The Chiller-Heater.................................................................................................................................. 79
Stop The Chiller-Heater .................................................................................................................................. 79
Interlocking Procedure .................................................................................................................................. 79
SECTION 6 - OPERATION ....................................................................................................................................91
YHAU-CGN/H Control Center ....................................................................................................................... 91
Common Items ............................................................................................................................................... 91
Change Numeric Values ................................................................................................................................. 92
Operating Status ............................................................................................................................................ 93
Failure .................................................................................................................................................109
Control Parameter ........................................................................................................................................ 114
Valve Operation ............................................................................................................................................ 115
Date And Time .............................................................................................................................................. 116
Operation Switch .......................................................................................................................................... 116
Select Language .......................................................................................................................................... 116
Single Loop Controller .................................................................................................................................. 117
Run Mode ............................................................................................................................................ 118
Ready Mode ........................................................................................................................................ 118
Alarm Mode ......................................................................................................................................... 119
Alarm Codes ........................................................................................................................................120
Air Damper Control ......................................................................................................................121
Hot Water Control Valve ...............................................................................................................122
AUTO/MANUAL Mode (RHW only) ..................................................................................................... 123
Operation Mode Changeover ....................................................................................................................... 124
Changeover to Cooling Mode .............................................................................................................. 124
Changeover to Heating Mode ............................................................................................................. 124
Use Simultaneous Residential Hot Water Supply Mode (Option) ...................................................... 124
Changeover to Residential Hot Water Sole Supply Mode (Option) .................................................... 125
SECTION 7 - MAINTENANCE .............................................................................................................................129
Exhaust Duct Inspection ............................................................................................................................... 129
Valve Inspection ........................................................................................................................................... 129
Solenoid Valves ............................................................................................................................................ 129
Pump Shut Off Valves .................................................................................................................................. 129
Air Purge Valves and Drain Valves ............................................................................................................... 129
Purge Valves ................................................................................................................................................ 129
Start The Chiller-Heater After It Has Been Stopped For a Long Period ....................................................... 130
Checks Before Operation Starts .......................................................................................................... 130
Checks After Operation Starts ...................................................................................................................... 130
Purge Procedure .......................................................................................................................................... 130
6
TABLE OF CONTENTS (CONT'D)
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
JOHNSON CONTROLS
Advertisement
Table of Contents
Troubleshooting
