York YVAA Installation, Operation & Maintenance Instructions Manual page 6

SECTION 4 - INSTALLATION ................................................................................................................................37
Location Requirements .................................................................................................................................. 37
Outdoor Installations ...................................................................................................................................... 37
Location Clearances ....................................................................................................................................... 37
Recommended Minimum Clearances ................................................................................................... 38
Vibration Isolators ........................................................................................................................................... 39
Installation .............................................................................................................................................39
Shipping Braces ............................................................................................................................................. 39
Chilled Liquid Piping ....................................................................................................................................... 39
General Requirements ..........................................................................................................................39
Evaporator Pressure Drop .............................................................................................................................. 40
Water Treatment ............................................................................................................................................. 41
Pipework Arrangement ................................................................................................................................... 41
Minimum Water Volume ................................................................................................................................. 42
Leaving Water Temperature Out of Range ..................................................................................................... 42
Thermal Storage ............................................................................................................................................. 43
Variable Primary Flow .................................................................................................................................... 43
Connection Types and Sizes .......................................................................................................................... 43
Evaporator Connections ................................................................................................................................. 43
Option Flanges ......................................................................................................................................45
Refrigerant Relief Valve Piping ....................................................................................................................... 45
Electrical Connection ...................................................................................................................................... 45
Power Wiring .................................................................................................................................................. 46
Power Supply Wiring ...................................................................................................................................... 46
115VAC Control Supply Transformer .............................................................................................................. 46
Control Wiring ................................................................................................................................................. 46
Volts Free Contacts ........................................................................................................................................ 47
Chilled Liquid Pump Starter ...................................................................................................................47
Run Contact ..........................................................................................................................................47
Alarm Contacts ......................................................................................................................................47
System Inputs ................................................................................................................................................. 47
Flow Switch ...........................................................................................................................................47
Remote Run / Stop ................................................................................................................................47
Remote Print .........................................................................................................................................47
Optional Remote Setpoint Offset - Temperature................................................................................... 47
Optional Remote Setpoint Offset - Current ........................................................................................... 47
Optional Remote Setpoint Offset - Sound Limiting ............................................................................... 47
Power Supply Wiring ...................................................................................................................................... 48
Single Point Wiring ................................................................................................................................48
Voltage Utilization Range ......................................................................................................................48
Dual Point Wiring ...................................................................................................................................49
Customer Control Wiring ................................................................................................................................ 50
SECTION 5 - TECHNICAL DATA ...........................................................................................................................63
Nomenclature ................................................................................................................................................. 63
Elastomeric Isolator Installation ...................................................................................................................... 90
Elastomeric Isolator Specifications ................................................................................................................. 91
One Inch Deflection Isolator Installation ......................................................................................................... 92
One Inch Deflection Spring Isolator Specifications ........................................................................................ 93
CPX-xx-xxx ............................................................................................................................................93
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TABLE OF CONTENTS (CONT'D)
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
JOHNSON CONTROLS