The Halton Workplace WSO ensures required ventilation airflow rates and reduces air handling unit (AHU) fan speed to improve energy efficiency.
It communicates with the building management system that is controlling air handling unit (AHU) and all zone dampers to optimise system performance in all circumstances.
The Halton Workplace system is a solution offering room condition management, zone static pressure, and pressure optimisation of the air handling unit (AHU). The demand-based operation of the Workplace system ensures energy efficient operation, without compromising indoor air quality.
The Halton Workplace WSO ensures required ventilation airflow rates and reduces air handling unit (AHU) fan speed to improve energy efficiency. It communicates with the building management system that is controlling air handling unit (AHU) and all zone dampers to optimise system performance in all circumstances.
Halton Workplace WSO can be equipped with Halton Edge gateway to access the Halton Connect and Care IoT platform with cloud-based portal, to see system performance data for system maintenance and to connect with Workplace partner solutions.
The Halton Workplace system supports common BACnet communication protocol.
The Halton Workplace WSO manages air handling unit (AHU) fan operation based on the pressure and airflow demand of the system. It communicates with Halton Workplace Zone dampers (Halton Max MDC). If all zone dampers are regulating, airflow although the least demanding zone damper should be fully open with low pressure drop. The Halton Workplace WSO manages the air handling unit (AHU) fan pressure accordingly to keep the pressure level at lowest possible value to reach the desired zone airflow. This reduces the energy consumption of AHU fans and keeps the system at optimal operation conditions.
Same time the Halton Workplace WSO manages AHU minimum airflow limitation by communicating with room units. If AHU airflow is below minimum airflow limit, for instance in situation when most of the room units are operating with minimum airflow rate, The Halton Workplace WSO increases airflow rate in room level in order to maintain AHU airflow at minimum airflow limit.
The Halton Workplace WSO consists of two hierarchic levels of operation: the manager module and zone dampers. The functions of each are outlined below.
|Protection class||Controller: IP 20|
|1||Halton Edge gateway||Remote control unit|
|2||Halton Workplace WSO||Siemens DXR2.E18 controller|
|3||Transformer||230/24V AC 20VA transformer|
|4||Power socket||Power supply for Halton Edge gateway|
The Halton Workplace WSO monitors the performance of the ventilation system. Minimises energy consumption by keeping the lowest possible pressure level in the ductwork. Includes optionally Halton Edge gateway remote control to access the Halton Connect and Care cloud-based portal.
The Halton Workplace WSO manager is delivered with own installation cabinet with transformer with direct din-rail mounting or wall-mounting.
Space needs to be reserved for installation cabinet so that the Halton Workplace WSO is accessible. Installation cabinet has space reservation for Halton Edge gateway.
|1, 2 Ethernet||2x RJ45 interface for 2-port ethernet switch||–||–|
|11, 12 KNX||KNX connection||+, –||–||–|
|31…41 inputs||Digital input||D1, D2||1||1, 2|
|Field supply AC 24 V for active sensors||V~||–||–|
|Field supply DC 24 V for active sensors||V+||–||–|
|51…52 power 24 V AC||Power supply SELV / PELV AC 24 V||V~||–||–|
|61…72 Triac outputs||Switching output AC 24V||Y1…Y8||11||1…8|
|81…88 analog outputs||Positioning output DC 0…10 V||Y10…Y40||21||1…4|
|Field supply AC 24 V||V~||–||–|
Fig.1. Wiring diagram for Workplace System Optimiser (WSO) with analogue connections from air handling unit (AHU)
Fig.2. Wiring diagram for Workplace System Optimiser (WSO) with BACnet/IP connection for air handling unit (AHU)
The Halton Tune commissioning support and start-up services guarantee proper functionality of the ventilation system before the occupants move in. By ensuring that all installations of components have been made correctly, and all parameters have been set according to the design, optimal thermal conditions and energy savings are achieved. Halton helps you provide a fully functional, comfortable, and safe indoor climate for the building users.
Halton supplies its customers with Halton Tune commissioning support and start-up services according to the following table.
|Service concept||Contents of service provided by Halton||Customer’s responsibilities|
|Services performed prior to delivery||
|On-site commissioning services||
C =Control unit and remote connection
O System optimiser controller
E Halton Edge gateway
B System optimiser + Halton Edge gateway
ZT = Tailored product
Y Yes (ETO)