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Display and Operation
Loop indication
Standard display (no button pressed
for 30 sec.): Not visible.
Loop display: Bar at 1 = Loop 1, Bar at
2 = Loop 2
Mode
Display of operation
mode
Indicators
Standard display:
Active digital
output (at 1, 2)
Loop display:
Active digital stages
(at 8,9,10)
Left (POWER)
Press < 2 sec.: Toggle STANDBY-
COMFORT mode or switch from OFF
to ON
Press > 2 sec.: Turn unit OFF. Text
OFF displayed with current time
(deluxe) temperature (standard)
(Parameter setting: ENTER to
select menu option, accept
parameter change)
Occupied: (Comfort) All control functions operating per set points.
Unoccupied: (Standby, Economy) If enabled, alternative setpoints
are used with the intention to reduce energy consumption.
OFF: (Energy Hold Off, EHO) Normal control functions are
OFF
inactive, inputs are monitored for alarms.
Idle display
The idle display is activated when no key has been pressed for 30 seconds.
The contents of the idle display are selectable through parameters UP08 to UP14.
Setting UP08 to OFF will disable idle display. Last active control loop or manual output will remain displayed.
Display of control loop
Active when changing set points. Large digits show input value. Small digits show set point. Horizontal bars top
left show which loop is being displayed.
Override of secondary set point in cascade control
If cascade control is active (with VAV for example) the user can override the primary loop and manually select the
set point of the secondary loop (the loop is then changed to constant air volume mode). This function is helpful for
tuning the VAV system. This feature may be disabled by setting UP02 to OFF.
While the secondary loop is displayed change the set point with UP/DOWN. The hand symbol appears.
Change setpoint again to cancel cascade override. The hand symbol disappears.
Delay on enable function
During a pending delay the hand symbol will be shown. For example the condition to activate the controller with
1FU is met, but a startup delay is specified. The controller will remain switched off and show the hand symbol until
the delay expired.
Doc: 70-00-0379, V1.2, 20140213
Subject to alteration
Up
Increment SET POINT
(Parameter setting:
SCROLL menu options
and parameters)
Operation modes
© Vector Controls GmbH, Switzerland
www.vectorcontrols.com
OPA2-2T(H)-VC Operation Terminal
Display & Operation
Large Digits
Display of input or parameter
value.
Small Digits
Display of setpoint, clock or
parameter number.
Vertical Bar
(scrolls up/down, 10% resolution)
Right (OPTION)
Press < 2 sec.: Select Control Loop
Press > 2 sec.: Enter set-up
CLOCK, SCHEDULES, H/C
(Parameter setting: ENTER to
select menu option, accept
parameter change)
Down
Decrement SET POINT
(Parameter setting: SCROLL menu
options and parameters)
Control symbols
Heating (reverse) active
Cooling (direct) active
Schedule set
Manual override,
delay on enable function
Fan active
Page 3
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