Viconics VT7606E Installation Manual - Manual (Page 10)

10
| PIR Ready VT7600 Series-Installation Guide
028-0363-02
Outdoor air temperature
• Outdoor air temperature display is only enabled when outdoor air temperature
sensor is connected.
• A maximum range status display of 50 °C (122 °F) indicates a shorted sensor.
Associated functions, such as mode lockouts and economizer function are
automatically disabled.
• A minimum range status -40 °C (-40 °F) is not displayed and indicates a opened
sensor or a sensor not connected. Associated functions, such as mode lockouts
and economizer function are automatically disabled.
Alarms
• If alarms are detected, they will automatically be displayed at the end of the
status display scroll.
• During an alarm message display, the back lit screen will light up at the same
time as the message and shut off during the rest of the status display.
• Two alarms maximum can appear at any given time.
• The priority for the alarms is as follows:
Sequence of manual-scroll status display:
Manual scroll of each menu item is achieved by pressing the Yes (scroll) key re-
petitively. The last item viewed will be shown on the display for 30 seconds before
returning to automatic scrolling. Temperature is automatically updated when scrolling
is held.
Clock Status System
Mode
Schedule
Status
Outdoor
Temperature
Alarms
(if detected)
Monday
12:00 AM
Sys Mode
Off
Occupied Outdoor
xx.x °C or °F
Frost ON
Sys Mode
Auto
Unoccupied SetClock
Sys Mode
Cool
Override DAS Alarm
Sys Mode
Heat
FA Alarm
High CO2
Frost ON
Indicates that the heating is energized by the low limit frost protec-
tion room temperature setpoint 5.6 °C (42 °F).
SetClock
Indicates that the clock needs to be reset. There has been a power
failure which has lasted longer than 6 hours.
DAS Alarm
Indicates that the discharge air temperature is either too low or too
high.
FA Alarm Indicates that the Fresh Air Level is either too low or too high.
High CO2
Indicates that the CO2 Level value is higher than the Max CO2
parameter value.