VCB-X Operator Interface SD
VCB-X CONFIGURATION
39
Table 5: User-Con
fi
gurable Relay Outputs
No. Relay Description
Details
1
Digital Compressor
Con
fi
gured for a Digital Compressor.
2
Cooling Stage
Con
fi
gured for each
fi
xed stage of cooling (except heat pump compressor).
3
Heating Stage
Con
fi
gured for each
fi
xed stage of heating.
4-5
Condenser #1
Condenser #2
Con
fi
gured for Condenser Fan/Valve operation. This relay(s) will be active anytime the respective
compressors are active, except if the unit is in Heat Pump Defrost Mode.
6
Heat Pump Water Valve
On a Water Source Heat Pump, this relay will be active anytime compressors are active.
7
Heat Pump Compressor
Con
fi
gured for a Fixed Heat Pump Compressor stage.
8
Reversing Valve
Con
fi
gured for the Reversing Valve of a heat pump unit.
9
Aux Heat
Con
fi
gured for a
fi
xed stage of Aux Heat in a heat pump unit.
10
Emergency Heat
Con
fi
gured for a
fi
xed stage Emergency Heat in a heat pump unit.
11
Mod Heat Enable
Con
fi
gure if a 0-10 VDC Modulating Heat source needs a relay to enable it.
12
Mod Cool Enable
Con
fi
gure if a 0-10 VDC Modulating Cool source needs a relay to enable it.
13
Morning Warm-Up/
Cool-Down (VAV Boxes)
Con
fi
gure (1) Relay for Morning Warm-Up/Cool-Down when Non-Orion VAV/Zone Controllers are
used.
14
Reheat
Con
fi
gure (1) Relay for On/Off Reheat when used.
15
Pre-Heat
Con
fi
gure for Pre-Heat operation.
16
Low Ambient
Con
fi
gure for Low Ambient operation.
17
Exhaust Fan
Con
fi
gure (1) Relay for enabling exhaust fan when Building Pressure Control is used.
18
Economizer Active
If con
fi
gured, this relay will energize if unit is in Economizer mode and the damper has moved 5%
above its Economizer Minimum Setpoint position.
19
Heat Wheel
Con
fi
gure (1) Relay that turns heat wheel on when in Occupied operation and turns heat wheel off
when in Economizer Mode.
20
Occupied Active
If con
fi
gured, this relay will energize whenever the unit is in the Occupied Mode.
21
Override Active
If con
fi
gured, this relay will energize anytime the space sensor Push-button override is active.
22
Alarm Active
If con
fi
gured, this relay will energize anytime a VCB-X alarm is active.
VCB-X Con
fi
guration Screens
Relays #1 through #5 can be individually con
fi
gured. Only forms of
Heating and Cooling can be con
fi
gured with multiple relays for staging.
If any other option is selected more than once, it will simply activate
redundant relays, but no multiple staging will occur.
Default is Not Used.
Con
fi
guration Screens #87-99 - E-BUS
12 Relay Con
fi
guration Screens
VCBX Cnfg ID 101
12 Rly Bd (1-12)
Not Used
Use < Or > To Change
The E-BUS 12 Relay Expansion Board Relays #1-#12 are con
fi
gurable
for the following options (See
Table 5
for Relay descriptions):
•
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
Relays #1 through #12 can be individually con
fi
gured. Only forms of
Heating and Cooling can be con
fi
gured with multiple relays for staging.
If any other option is selected more than once, it will simply activate re-
dundant relays, but no multiple staging will occur.
Default is Not Used.
