Systemair OPTIMA-S VAV Controller User Manual

Air Distribution Products

Installation and Mounting

The OPTIMA-S VAV controller requires specific installation considerations. Ensure minimum clearances are maintained:

Minimum 150 mm clearance from the wall.
Minimum 80 mm clearance from the ceiling.

Diagrams illustrate correct duct connections, including straight sections and bends. The effective diameter (D_eff) is calculated as (2×W×H)/(W+H), where W is width and H is height. Minimum straight duct length (L_min) should be 3 x D_eff.

The unit can be mounted in various orientations, as indicated by checkmarks in the diagrams.

Control Options and Connectivity

The OPTIMA-S offers several control options:

OPTIMA-S...
-BLC1
-BLC4
-BLC1MOD
-BLC1LON
-BLC1KNX
-GO
-GOMOD

Connectivity options include:

ZTH-EU: For direct connection and control.
NFC/Bluetooth: Via smartphone app (ZIP BT NFC) for wireless communication.
BUS: For Modbus/BACnet communication.
BMS: Integration with Building Management Systems.

Diagrams show the wiring for different controller types, including MP-Bus connections.

Electrical Connections and Signal Types

The OPTIMA-S supports various input and output signal types for control:

DC 0 V ... 10 V Control

Setpoint and Feedback: The controller accepts a 0-10 VDC signal for setpoint adjustment and provides a feedback signal. Graphs illustrate the relationship between voltage and airflow (q) for different scenarios (a-e, g).

DC 2 V ... 10 V Control

Setpoint and Feedback: Similar to the 0-10 VDC control, but with a 2-10 VDC range for setpoint and feedback. Graphs illustrate the airflow characteristics.

BUS Communication

-BLC1KNX, -BLC1LON, -BLC1MOD, -GOMOD: These models support BUS communication protocols like KNX, LON, Modbus, and BACnet. Wiring diagrams show connections for these communication types.

Graphs: Various graphs (a-e, g) illustrate the relationship between input voltage (U) and airflow (q) for different control modes and signal ranges (0-10V, 2-10V).

Technical Specifications and Operating Conditions

Operating Temperature: -20°C to +50°C

Operating Humidity: ≤ 95% RH (non-condensing)

Power Supply: AC 24 V / DC 24 V

Diagrams: Illustrate typical operating conditions and product handling.

Website: For more information, visit design.systemair.com.

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