York YVAA - Page 7

JOHNSON CONTROLS
7
Form 201.47-ICOM1
Issue date: 17/11/2022
Table of Contents (cont'd)
Electrical connection ......................................................................................................................................36
Power wiring ................................................................................................................................................... 37
Power supply wiring .......................................................................................................................................37
115 VAC control supply transformer ...............................................................................................................37
Control wiring .................................................................................................................................................37
Volts free contacts ..........................................................................................................................................38
System inputs ................................................................................................................................................. 38
Power supply wiring .......................................................................................................................................39
Customer control wiring ..................................................................................................................................41
Thermal dispersion flow switch connections ..................................................................................................42
Section 5 - Technical data .....................................................................................................................................65
Elastomeric isolator installation ......................................................................................................................88
Elastomeric isolator specifications .................................................................................................................89
One inch deflection isolator installation ..........................................................................................................90
One inch deflection spring isolator specifications ...........................................................................................91
Two inch deflection, isolator installation and adjustment ................................................................................ 92
Two inch deflection, restrained spring isolator specifications ......................................................................... 93
Section 6 - Commissioning ..................................................................................................................................94
Preparation ..................................................................................................................................................... 94
First time startup .............................................................................................................................................97
General operation ..........................................................................................................................................97
Freeze damage protection .............................................................................................................................97
Section 7 - Operation ............................................................................................................................................99
Operating controls ..........................................................................................................................................99
Basic operating sequence ............................................................................................................................101
Unit warning .................................................................................................................................................102
Microboard (331-03478-xxx) ........................................................................................................................102
SC-EQ communications card .......................................................................................................................105
SC-EQ Communication Card interface IPU3 ...............................................................................................105
Program update ............................................................................................................................................ 111
Data logging ................................................................................................................................................. 112
Unit safeties .................................................................................................................................................. 113
System safeties, faults ................................................................................................................................. 114
Section 8 - Micropanel ........................................................................................................................................ 119
Unit data key ................................................................................................................................................122
System data keys 1 through 4 ...................................................................................................................... 124
VSD data key ...............................................................................................................................................127
Operating hours/Start counter key ...............................................................................................................129
History key ....................................................................................................................................................130
Setpoints key ................................................................................................................................................ 137
Program key .................................................................................................................................................139
Unit Setup Mode ...........................................................................................................................................142
Options key ..................................................................................................................................................149
Date/time and schedule keys .......................................................................................................................152
Manual override key .....................................................................................................................................155