INDEX
VCB-X Controller Field Technical Guide
108
D-F
Digital Compressor Cutoff Alarm..........76
Digital Compressor Discharge Temperature Sensor..........31
Diagram..........31
Wiring..........31
Digital Compressor Lockout Alarm..........76
Digital Compressor Relay Description..........58
Digital Compressor Unloader
Description..........58
Diagram..........32
Wiring..........32
Digital Compressor Unloader Triac..........56
Digital Scroll Compressor..........5,62
Dimensions
VCB-X 12-Relay Expansion Module..........17
VCB-X Controller..........14
VCB-X EM1 Expansion Module..........15
VCB-X EM2 Expansion Module..........16
Direct Acting Building Pressure Control..........69
Direct Acting Operation, AO1..........35
Dirty Filter..........56
Dirty Filter Alarm..........5
LED Blinks..........80
Dirty Filter Contact Closure Input Description..........57
Dirty Filter Status Alarm..........76
Dirty Filter Switch LED..........78
Discharge Temperature..........56
DPAC..........49
DPAC (Digital Precision Air Control)
Applications..........5
Overview..........6
Drybulb/Wetbulb Control of Economizer Operation..........5
Duct Mounted E-BUS CO
2
Sensor..........24
Duct Static Pressure Voltage Chart..........87
Duct Static Pressure Control..........6,68,69
Duct Static Pressure Sensor..........10
Duct Static Pressure Sensor Input..........59,60
Duct Temperature Sensor, Described..........10
Duct Temperature Sensor - 6” Probe..........10
Duct Temperature Sensor - 12” Probe..........10
DX
Cooling..........30
Evaporator Coil..........6
E
EBC E-BUS Cables..........10
EBC-XX-F..........10
EBTRON Air Flow Measurement Digital Transmitter Wiring..........51
EBTRON Air
fl
ow Station..........68
E-BUS 12 Relay Expansion Module..........8
E-BUS 12-Relay Expansion Module
Wiring..........50
E-BUS Adapter..........9
E-BUS Adapter Board..........12,51
E-BUS Adapter Hub..........12
E-BUS Cables..........10
E-BUS CO
2
Duct Sensor..........9
E-BUS CO
2
Wall-Mounted Sensor..........9
Described..........9
Wiring..........23
E-BUS Digital Room Sensor..........8,23
Wiring..........22
E-BUS Digital Room Sensor - Temp and RH, Described..........8,9
E-BUS Digital Room Sensor - Temp. Only, Described..........8
EBUS LED..........78
E-BUS Outdoor Air Temperature & Humidity Sensor..........9
E-BUS Outside Air Temp & RH Sensor
Diagram..........28
Wiring..........28
E-BUS Return Air Temp & RH Sensor
Diagram..........29
Wiring..........29
Economizer Active Relay, Description..........58
Economizer Control Signal, Description..........58
Economizer Damper Actuator..........34
Diagram..........34
Wiring..........34
Economizer Damper Actuator Wiring..........34
Economizer Operation..........63
Electric Heating Coil..........35
EM1 Expansion Module..........8
EM2 Expansion Module..........8
Emergency Heat..........71
Emergency Heat Relay, Description..........58
Emergency Shutdown..........56
Emergency Shutdown Alarm..........76
Emergency Shutdown Input, Description..........57
Emergency Shutdown LED..........78
Enter Key..........90
Entering Water Temperature Sensor Input..........59
Entering Water Temperature Sensor Wiring..........40
ESC Key, De
fi
ned..........90
Evaporator Coil Temperature..........6
Exhaust Air
fl
ow Alarm..........75
Exhaust Fan Relay, Description..........58
Exhaust Fan VFD..........56,69
Exhaust Hood, Activating..........6
Expansion Module, E-BUS 12 Relay..........8
F
Factory Wired..........19
Failure Mode Alarms..........76
Fan Cycle Mode..........61
Fan Proving Failure LED Blinks..........80
Fan Proving Interlock..........5
Fan Relay..........56
Fan VFD..........56
Features, VCB-X Controller..........5
Features and Applications, VCB-X Controller..........5
Field Wired..........19
Filter Loading..........69
Filter Loading Applications..........5
Forced Schedule..........61
Force Outputs Override
LED Blinks..........80
Full Digital Control..........5
