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Viconics VT7607 Installation Manual User Manual

Page 11

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11 | PIR Ready VT76x7 Series-Installation Guide

Sequence of auto-scroll status display:

ROOM

TEMP & RH

CLOCK

STATUS

SYSTEM

MODE

SCHEDULE

STATUS

OUTDOOR

TEMPERATURE

ALARMS

x.x °C
or °F
XX % RH

Monday
12:00
AM

Sys mode
auto

Occupied

Outdoor
x.x °C or°F

Service

Sys mode
off

Occupied
hold

Frost
ON

Sys mode
heat

Unoccup

SetClock

Sys mode
cool

Filter

Sys mode
emergency

Fan lock

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 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:



Frost ON

Indicates that the heating is energized by the low limit frost protection 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

Service

Indicates that there is a service alarm as per one of the configurable digital
input ( DI1 or DI2 )

Filter

Indicates that the filters are dirty as per one of the configurable digital input (
DI1 or DI2 )

Fan lock

Indicates that the heating and cooling action are locked out due to a defective
fan operation







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