VCB-X Controller Field Technical Guide
INDEX
109
G-M
G
GND-to-GND..........54
GPC-X Controller..........13
GPC-XP Controller..........13
GTC116..........51
H
Head Pressure..........56
Head Pressure Control Output..........46
Head Pressure Transducer..........43
Head Pressure Transducer Input..........59
Head Pressure Transducer Wiring Diagram..........43
Heating Lockout Setpoint..........65
Heating Mode..........65
Heating Mode Operation..........62,64
Secondary Heat..........65
Heating Stage Relay, Description..........58
Heat Pump Applications..........5
Heat Pump Adaptive Defrost Operation..........71
Heat Pump Compressor Relay, Description..........58
Heat Pump Mode..........62
Heat Pump Operation..........71,72
Heat Pump Standard Defrost Operation..........71
Heat Wheel..........5,56
Heat Wheel Relay Description..........58
High and Low Control Temp Failure..........76
High and Low Supply Temp Alarm..........76
High Space Temp Alarm..........77
High Supply Temp Alarm LED Blinks..........80
Hood On Input..........59
Hood On/Off..........56
Hood On/Off Operation..........70
Hot Water Valve..........5
HVAC Modes of Operation..........62
HVAC Source Con
fi
guration Options..........61
HZ-EBC-248..........12
I
IAQ (CO
2
) Economizer Reset..........5
IAQ (CO
2
) Control Operation..........66
Immersion Well for OE230 Water Temperature Sensor..........10
Initialization, System..........55
Inputs, VCB-X Controller..........57
Inputs and Outputs, VCB-X EM1 Expansion Module..........59
Input Wiring, VCB-X Controller..........20
Instructions, Addressing..........54
Interconnected System..........81
Interconnected System Layout..........83
Internal Week Schedule..........61
Internet/LAN Connection..........11
IP Module Kit..........11
K
Keys, Described..........90
L
Leaving Water Temperature..........56
Leaving Water Temperature Sensor Input..........59
LCD Display Screens...........90
LED
Blink Codes..........80
Coil Temperature Switch..........78
Diagnostics..........78,79
Troubleshooting..........80
LED Blink Codes..........80
LED Descriptions..........78
LED Diagnostics..........80
LEDs
ALERT..........78
APP HB..........78
Binary Input..........78
Blink Codes..........80
Communication..........78
Compressor..........78
Diagnostic..........78
Dirty Filter Switch..........78
EBUS..........78
Emergency Shutdown..........78
LOOP COMM..........78
Operation..........78
OS HB..........78
POWER..........78
Proof of Flow Switch..........78
Relay..........78
STATUS 1..........78,80
STATUS 2..........78,80
Supply Fan..........78
UNLOAD..........78
WDOG..........78
Lighting Controller..........12
Light Sensor..........12
LOOP COMM LED..........78
Low Ambient Operation..........68
Low Ambient Relay, Description..........58
Low Leaving Water Temperature..........73
Low Space Temp Alarm..........77
Low Suction Pressure Detection..........73
Low Supply Temp Alarm LED Blinks..........80
M
Make-Up Air Unit..........6
Maximum Reset Position Setpoint..........66
Mechanical Cooling..........62
Mechanical Cooling Failure..........75
LED Blinks..........80
Mechanical Failure Alarms..........75
Mechanical Heating..........65
Mechanical Heating Failure..........75
LED Blinks..........80
MHGRV-X Controller..........13
Wiring..........52
MiniLink Polling Device..........11
Minimum Wire Size
For Sensors..........19
