I/o setup menu - continued – Greenheck Microprocessor Controller v3.0 (469690) User Manual
Page 14
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Digital Input (ID2)
Wheel pressure switch
High
pressure=Closed
Status:Open
T
HIS
SCREEN
DISPLAYS
THE
ALARM
STATUS
MODE
OF
THE
ENERGY
RECOVERY
WHEEL
PRESSURE
SWITCH
.
When the Wheel pressure switch alarm is triggered, the wheel has excessive frost or
dirt build-up. The High pressure parameter allows the user to select Open or Closed
for the contact position that will trigger the alarm. Status displays the real time status
(open/closed) of the digital input.
Digital Input (ID3)
Wheel rotation alarm
Alarm:Closed
Status:Open
T
HIS
SCREEN
DISPLAYS
THE
ALARM
STATUS
MODE
OF
THE
ENERGY
RECOVERY
WHEEL
ROTATION
SENSOR
.
When the Wheel rotation alarm is triggered, the wheel has stopped rotating. Refer to
‘PROGRAM’ menu for wheel rotation alarm delay. Status displays the real time status
(open/closed) of the digital input.
Digital Input (ID4)
Unit ON/OFF control
Unit ON when:Closed
Status:Open
T
HIS
SCREEN
DISPLAYS
THE
STATUS
MODE
OF
THE
REMOTE
INPUT
FOR
UNIT
ON
/
OFF
CONTROL
.
The Unit ON when parameter allows the user to select Open or Closed for the contact
position that will energize the unit. Status displays the real time status (open/closed) of
the digital input.
Digital Input (ID5)
Exhaust proving switch
Alarm:Open
Status:Closed
T
HIS
SCREEN
DISPLAYS
THE
ALARM
STATUS
MODE
OF
THE
EXHAUST
FAN
.
When the Exhaust proving switch alarm is triggered, the fan is not seeing airflow and
the unit will shutdown and alarm. The Alarm parameter allows the user to select Open
or Closed for the contact position that will trigger the alarm. Status displays the real
time status (open/closed) of the digital input.
Digital Input (ID6)
Occupied/Unoccupied
Occupied
when:Open
Status:Closed
T
HIS
SCREEN
DISPLAYS
THE
ALARM
STATUS
OF
THE
O
CCUPIED
/U
NOCCUPIED
OPERATION
.
While in Input ID6 mode, (refer to ‘PROGRAM’ menu) the input from ID6 will send the
unit into occupied or unoccupied mode. If in BMS or Time Clock mode, a 24 VDC input
from ID6 will override the system operation from unoccupied (refer to ‘TIME CLOCK’
menu for actual override time period) to occupied (but not occupied to unoccupied)
mode for a specific override. The Occupied when parameter allows the user to select
Open or Closed for the contact position that will indicate Occupied operation. Status
displays the real time status (open/closed) of the digital input.
Digital Input (ID7)
Dirty filter switch
Alarm:Closed
Status:Open
T
HIS
SCREEN
DISPLAYS
THE
ALARM
STATUS
MODE
OF
THE
DIRTY
FILTER
SWITCH
.
The Alarm parameter allows the user to select Open or Closed for the contact position
that will trigger the alarm. Status displays the real time status (open/closed) of the
digital input.
Digital Input (ID8)
Compressor limits
Alarm:Open
Status:Closed
T
HIS
SCREEN
DISPLAYS
THE
ALARM
STATUS
MODE
OF
THE
COMPRESSORS
.
This screen only appears if DX cooling was provided in the unit.
The Alarm parameter allows the user to select Open or Closed for the contact position
that will trigger the alarm. Status displays the real time status (open/closed) of the
digital input. Based on factory defaults, the DX staging will lockout and alarm when the
Status is Open.
End of I/O setups
I/O SETUP MENU - continued