Installation guide

20
Prog rec Progressive recovery enabled
Default value = Off
Progressive recovery is
automatically disabled if DI is
configured as Remote NSB
For scheduling model only -
VT7657B1028B
Off, = no progressive recovery
The programmed occupied schedule time is the time at
which the system will restart.
On, = progressive recovery active.
The programmed occupied schedule time is the time at
which the desired occupied temperature will be attained.
The thermostat 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.
RH LT Reset RH lower outside
temperature setpoint
Default value = -20°F (-29°C)
Minimum outside air temperature for RH setpoint reset.
Only valid if an outdoor air sensor is connected at the
thermostat or a network value is transmitted to the
thermostat. See RH HT & RE Sp.
From –40°F up to 15°F (-40°C to –9.5°C)
RH HT Reset RH higher outside
temperature setpoint
Default value = 32°F (0°C)
Maximum outdoor air temperature for RH setpoint reset.
Only valid if an outdoor air sensor is connected at the
thermostat or a network value is transmitted to the
thermostat. See RH LT & RE Sp
From 20°F up to 55°F (-6.5°C to 13°C)
HL Sp RH High limit setpoint
Default value = 85% RH
High humidity limit in the supply.
Only valid if a 0-10 Vdc sensor is connected at the
thermostat – otherwise this feature is disabled automatically.
From 50% RH up to 90% RH
Dhu OALK Dehumidification outside air
temperature lockout
Default value = 32°F (0°C)
Outside air temperature under which the dehumidification
sequence is disabled.
Only valid if an outdoor air sensor is connected at the
thermostat or a network value is transmitted to the
thermostat.
From –40°F up to 122°F (-40°C to 50°C)
Dhu LCK Dehumidification Lockout Functions
Default value = On
Enables or disables the lockout functions for the
dehumidification control process of the output.
On: will restrict the dehumidification process based on the
following:
- System mode = Needs to be Cool or Auto ( currently
operating in cooling only )
- Low ambient room temperature protection enabled
Off: will not restrict the dehumidification process:
- System mode = Needs to be Cool, Heat or Auto
- There is no ambient room temperature protection
enabled
DehuHyst Dehumidification hysterisys
Default value = 5% RH
Dehumidification control hysterisys.
Used only if dehumidification sequence is enabled.
From 2% RH up to 20% RH