120 SCXG-SVX01B-EN
Index
A
“After-Shipment” Accessory Model
Number 8
Air Filters 98
Air-Cooled Condensers 88
Airside Economizer Installation 48
Airside Economizer Interface 88
Airside Economizer Interface with
Comparative Enth 88
Airside Economizer Option 87
Airside Economizers with Traq Damper
87
Ambient Temperature and Humidity
Limits 58
Annual Maintenance 110
Auto Changeover 94
Auto Reset S/A Static Pressure Limit
112
B
Basic Water Piping 84
BAYSEN020 Icon Descriptions 72
BAYSENS008 Description 50
BAYSENS010 Description 52
BAYSENS013 Description 52
BAYSENS014 Description 52
BAYSENS017B Description 51
BAYSENS019 64
BAYSENS019 Description 55
BAYSENS019 Icon Descriptions 71
BAYSENS019 Keypad and Display
Explanation 64
BAYSENS020 Keypad and Display
Explanation 65
BAYSENS020 Description 55
BAYSENSO21 Description 51
Brazing Procedures 36
C
Cautions 59
Changeover 94
Chemical Cleaning of Condenser and
Economizer Coil 108
Cleaning the Condenser 108
Cleaning the Flow Switch 109
CO
2
sensor 87
CO
2
Sensor Failure 112
Coil Fin and External Cleaning 107
Common HVAC Acronyms 2
Communication Link (Shielded Twisted
Pair) Wiring 61
Communication Wiring 62
Comparative Enthalpy Control 87
Component Overview 63
Compressor Circuit Breakers 89
Compressor Contactor Fail 112
Compressor Cycling 95
Compressor Isolators 39
Compressor Lead/Lag Operation 95
Compressor Module 80
Compressor Motor Winding Thermo-
stats 89
Compressor Safety Devices 96
Compressor Stages 95
Compressor Trip 112
Compressors 95
Condensate Drain Connections 34
Condenser Connections 34
Condenser Temp Sensor Failure 112
condensing temperature rises above
the lower limit 89
Connecting to Tracer Summit 62
Constant Volume Zone Sensor 55
Constant Water Flow 84
Control Options 5
Control Power 37
Control Sequences of Operation 91
Cooling 93
Cooling Capacity Percent 96
Cooling Tower Interlock 80
Cooling/Airside Economizer 93
Cooling/Waterside Economizer 93
Cycling Capacity Morning Warmup 91
D
Day Button 67
Daytime Warmup 94
Diagnostics 112
Dirty Filter 112
Dirty Filter Sensor Option 86
Draining the Coil 107
Duct Connections 33
Ductwork 63
E
ECEM 81
ECEM Communications Failure 112
Electric Heat 94
Electric Heat Coil Wiring Procedure 46
Electric Heat Installation 46
Emergency Stop 113
Emergency Stop Input 79
Entering Cond Water Temp Sensor Fail
113
Entering Water Temp Sensor Fail 113
Erase Button 67
Evacuation 103
Evap Temp Sensor Failure 113
Evaporator Coil Frost Protection 97
Evaporator Temperature Sensor Frostat
89
EXHAUST sequence “C” 80
Exhaust/Comparative Enthalpy Module
81
External Auto/Stop Switch 78
External Unit Isolation 16
F
Factory Mounted Time Clock 91
Fan Bearings 100
Fan Belt Tension 100
Fan Button 67
Fan Drive 99
Fan shaft and motor sheave alignment
99
Field Supplied Occupied/Unoccupied
Input on the RTM 91
Filter Switch 90
Flow Switch Maintenance 109
FROSTAT 97
Full Capacity Morning Warmup 91
G
GBAS 0-5 VDC Module Comm Failure
113
GBAS Analog Input Setpoints 83
GBAS Analog Inputs 82
GBAS Binary Input 82
GBAS Binary Outputs 82
GBAS Demand Limit Relay 82
GBAS Diagnostics 82
GBAS Input Voltage Corresponding
Setpoint 83
General Waterside Recommendations:
Cooling Towers 35
Generic Building Automation System
Module 82
H
Head Pressure Control 89
Heat Failure 113
Heat Module 80
Heat Module Auxilliary Temperature