Viconics VT7600F Installation Manual - Manual (Page 26)

26 | PIR Ready VT7600 Series-Installation Guide
aux cont
Auxiliary contact configuration
Default value = N.O. normally
open This contact can be used to energize peripheral devices
such as: lighting equipment, exhaust fans,
economizers, etc.
This contact will operate in parallel with the internal
occupied/unoccupied schedule of the Terminal
Equipment Controller or the remote NSB contact if DI1
or DI2 is used.
When the system is in OFF mode, the contact will
remain in its unoccupied status independently of the
occupied / unoccupied schedule.
Configured
Contact
occupied
status
Contact
unoccupied
status
N.O. Closed Opened
N.C. opened Closed
Prog rec
Progressive recovery enabled
Default value = Off
Progressive recovery is
automatically disabled if DI 1 and
/ or DI 2 are configured remote
NSB Off, = no progressive recovery
The occupied schedule time is the time at which the
system will restart.
On, = progressive recovery active.
The occupied schedule time is the time at which the
desired occupied temperature will be attained. The
Terminal Equipment Controller will automatically
optimize the equipment start time.
In any case, the latest a system will restart is 10
minutes prior to the occupied period time.
Dis HL
Discharge air temperature high
limit
Default: 120°F
Discharge air high temperature value at which the
heating output will be locked out.
70°F to 150°F (21°C to 65°C)
(increments: 0.5° or 5°)
Dis LL
Discharge air temperature low
limit
Default: 45°F
Discharge air low temperature value at which the
cooling stages will be locked out.
35°F to 65°F (2.0°C to 19.0°C)
(increments: 0.5° or 5°)
MS dis
Display mixed air temperature
Economizer model only, only if
sensor is installed
Used as diagnostic / service help to troubleshoot and
diagnose economizer operation.