S&P UTBS PRO-REG Series, Manual

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Advanced level
To modify the proportional and integral bands, from the advanced parameters
menu follow the follwowing sequence:
1- Access to system level
2- Adjust the CAV parameters
Manual/Auto
Sengs
Configuraon
Access Rights
Temperature control
Pressure control
Alarm sengs
Pressure Ctrl. Supply
P.Band: 1000.0Pa
Acc-I: 20.0 s
Min.output: 20%
Change
parameters
Factory setting data according to sizes
Model Proportionnal
band
Integral
band
UTBS-2 5000 Pa 25s
UTBS-3 5000 Pa 25s
UTBS-5 5000 Pa 25s
UTBS-8 5000 Pa 25s
11.3.2. Variable airfl ow operation (VAV)
Mode recommended in single area confi guration for variable airfl ow applications
depending on a signal type 0-10v.
The set point value depends on a signal 0-10 V coming from an outdoor probe (CO
2
,
temperature, relative humidity, etc.) or a manual percentage. The ratio between the
fans is entered in the form of a discharge/supply percentage.
Functional parameter setting:
Access to the simplifi ed parameter setting menu (via the password 1111) allows:
• The selection of the usage range of the signal 0-10V (see example below).
• The variation range of the supply fan’s speed.
• The percentage applied to the discharge with respect to the supply.