VCB-X Operator Interface SD
VCB-X STATUS
65
Status Screens 48-59 - 12 Relay Expansion
Module Relays
VCB-X v2.00 ID 101
12 Rly Bd Rly 1
Relay Name
ON/OFF
Line 2 On Board Relays 1-12 Status
Line 3 Current description of what this Relay is
con
fi
gured for
On screens 48-59, this line will indicate the relay’s use.
Possible options are:
Not Used (Default)
Digital Compressor
Cooling Stage
Heating Stage
Condenser
#1
Condenser
#2
HP Water Valve
HP
Compressor
HP Reversing Valve
HP Aux Heat
HP Emergency Heat
Mod Heat Enable
Mod Cool Enable
Warmup / Cooldown
Reheat
Preheat
Low
Ambient
Exhaust
Fan
Economizer
Heat
Wheel
Occupied
Mode
Override Mode
Alarm
Active
Line 4
Current Relay Status
This line will display the ON/OFF condition for that relay.
FORCED ON or FORCED OFF will appear if this Relay is
in a Force Mode. Possible options are as follows:
ON OFF
FORCED
ON
FORCED
OFF
Status Screens 60 - 90 - Alarm Status
Press
<ALARMS>
. The
Unit Selection Screen
will be displayed.
Enter the Unit ID of the controller you wish to search and
press
<ENTER>
.
You must type in the number, even if it is “1”.
Once communication is established, “No Communica-
tion” will be replaced with “Press Down.” Then
press
<
>
.
The System Manager or Service Tool will search for any active
alarms on the unit and one of the following screens will appear:
VCB-X v2.00 ID 101
NO ALARMS
SCROLL DOWN TO VIEW
VCB-X Status Screens & Alarms
VCB-X v2.00 ID 101
ALARMS PRESENT
SCROLL DOWN TO VIEW
Line 2 Blank
Line 3 NO ALARMS OR ALARMS PRESENT
If alarms are present, the screens that follow will display
one or more of the following:
Bad
SAT
Sensor
Bad
RAT
Sensor
Bad
OAT
Sensor
Bad
Space
Sensor
Missing
EM1
Bad
Coil
Sensor
Bad
CO
2
Sensor
Bad Compressor Discharge Sensor
Missing
Outdoor
Air
fl
ow Sensor
Missing
Exhaust
Air
fl
ow Sensor
Missing
Supply
Air
Air
fl
ow Sensor
Missing
Return
Air
Air
fl
ow Sensor
Missing
MHGRV-X
Missing
MODGAS-X
Missing
12RLY
Missing
EM2
Mech
Cooling
Failure
Mech
Heating
Failure
Fan
Proving
Alarm
Dirty
Filter
Alarm
Emergency
Shutdown
High
Supply
Air
Temperature
Cutoff
Low
Supply
Air
Temperature
Cutoff
High
Control
Temp
Low
Control
Temp
Digital
Compressor
Cutoff
Digital
Compressor
Lockout
High Head Pressure 1
WSHP Proof of Flow Failure
Low
Suction
Pressure
High
Suction
Pressure
WSHP
Low
Water
Temperature
High Head Pressure 2
Preheat
Alarm
Missing Head Pressure 1
Missing Head Pressure 2
Title 24 Economizer Air Temp Sensor Fail
Title 24 Economizer Damper Fail
Title 24 Economizer Not Economizing When It
Should
Title 24 Economizer Economizing But Shouldn’t
Title 24 Economizer Excess Outdoor Air
Press
<
>
to scroll through all active alarms.
For
Alarm
De
fi
nitions, see the
VCB-X Controller Field
Technical
Guide
.