Viconics VT8000 - Page 41

028 -0427-15 _UI-V T8350_ A4 _ EN www.viconics.com June 2020
41
VT8350 [ User Interface Guide ]
CONFIGURATION 6/9
6/9 Configuration
Operation seq.
No. of pipe s
Prop. ba nd
Heat only
2
3.0
Purge sample
2.0 hrs
Purge open
2 m in
Temp. senso r
Wired
Conguration Parameters Default Value Signicance and Adjustments
Prop. band
Default value: 3.0
Proportional Band Setting
Adjusts proportional band used by Room Controller PI control loop.
Note: Default value of 3 gives satisfactory operation in most normal installation
cases. The use of a superior proportional band different than the factory value is
normally warranted in applications where Room Controller location is problematic
and leads to unwanted cycling of the unit. A typical example is a wall mounted
Room Controller installed between return and supply air feeds and is directly
inuenced by the supply air stream of unit.
Range: 3.0 to 10.0
Value E󰀨ective Proportional Band
Fahrenheit Celsius
3.0 3 1.2
4.0 4 1.7
5.0 5 2.2
6.0 6 2.8
7.0 7 3.3
8.0 8 3.9
9.0 9 5.0
10.0 10 5.6
No. of pipes
Default: 2
Number of Pipes
Denes the type of system installed.
Choices: 2 or 4
PARAMETER DETAILS