Sill Units Type SCHOOLAIR-V For vertical installation adjacent to a window

Contents · Description Description __________________________________ Functional description __________________________ Construction · Dimensions ______________________ Outer casing________________________________ Operation and control __________________________ Room control panel __________________________ Master-slave operation________________________ Installation __________________________________ 9 Technical data________________________________10 Order details ________________________________11 Heat exchanger as 4-pipe system Heat exchanger as 2-pipe system SCHOOLAIR - V - 2 / 2160 Decentralised...

Functional description Heat exchanger SCHOOLAIR-V ventilation units maintain a high air quality in class rooms or offices by supplying conditioned fresh air to the room and extracting stale air. The thermal loads of the room are dealt with by the heat exchanger for heating and, if chilled water is available, for cooling. In the heat exchanger, the temperature of the air rises to approx. 22 °C (static heating system exists), or with adequate hot water flow temperature to approx. 40 °C, to cover the façade heat loss (normally no static heating system necessary). The supply air fan provides fresh...

Construction · Dimensions – Single room control system including control panel, sensors and actuators Type SCHOOLAIR-V 2-pipe system Low height, compact depth and self-supporting construction Height-adjustable pedestals with 50 mm setting range Hanging brackets for on-site installation by the customer Conforms to the hygiene requirements of VDI 6022 Weight approx. 80 kg – Casing and condensate drip tray made of galvanised sheet steel – Heat exchanger for heat recovery made of aluminium – Lining is mineral wool in compliance with DIN 4102, fire rating class A2, faced with fibreglass as protection...

Construction · Dimensions Outer casing Ventilation units without factory made outer casing are encased or installed into existing outer casings by the customer. In this case the diffusers for supply and extract air must be supplied by the customer. Ventilation units can also have an attractive TROX outer casing made of sheet steel. In this case, diffusers for supply and extract air are part of the outer casing. Both linear grilles with horizontal blades and perforated sheet metal face plates are available. Outer casing Order code L-shaped outer casing with two perforated sheet metal face plates...

Operation and control Room control panel SCHOOLAIR control system As an accessory, SCHOOLAIR control provides an individual room control system and is ideally tailored to the SCHOOLAIR ventilation units. The controller has the necessary electronics to connect and communicate with the control panel, temperature sensors, the room air quality sensor, the actuators, and the control software. Control components: – SCHOOLAIR controller – Control panel – Valves for hot and/or chilled water – Valve actuators – Supply air temperature sensor – Room air quality sensor – Fresh air temperature sensor Ventilation...

Operation and control Room control panel Operating modes Room temperature setpoint A responsible use of energy is provided with demand-based operating modes. A comfortable room temperature is maintained only in occupied rooms. Night cooling period Room temperature range set by users Operating mode: Stand-by Operating mode: Morning warm-up Operating mode: Class Operating mode: Unoccupied Room temperature range set by users Night cooling Control mode Morning warm-up Night cooling Operating modes Room temperature setpoint Flow rate User pushes occupancy button User pushes occupancy button or 16:00...

Operation and control Master-slave operation Master and slave units Each ventilation unit requires a SCHOOLAIR controller operating as a master or slave to set the fan speed and to control the valves. For the individual room control and user operation each room must have a master ventilation unit. If there are multiple ventilation units in one room, the other maximum five units operate as slaves. Additional components for the master unit: – Connection for room control panel – Fresh air temperature sensor – Room air quality sensor (VOC) – For connection of the control panel a cable end is available...

Installation Installing and connecting the ventilation units as well as providing the fixing, connection and sealing materials must be undertaken by the customer. Only trained expert personnel must install and connect the units. All legal regulations for site work must be complied with. The ventilation units are mounted on the inside of external walls, preferably adjacent to a window. A unit is placed on the floor or on the sill, adjusted, and fixed using the brackets. Closed-cell sealing strips produce a tight connection to the wall. Fresh air and exhaust air connections Two openings with 220...

Technical data Electrical data Supply voltage: Power rating: Boost: 45 W Medium fan speed (55 l/s / 200 m³/h): 17 W Rating: 156 VA Heating capacity With outside temperatures below −6 °C the heat recovery is not active, to avoid freezing in the heat exchanger. The maximum heating capacity is in this case provided by the heat exchanger of the hot-water heating system. Above −6 °C outside temperature the heat recovery is active and a portion of heat in the extract air is transferred to the fresh air. Hence the heating capacity provided by the hot-water heating system is reduced. The efficiency of...

Order details Specification text Decentralised ventilation units for individual and energyefficient ventilation of class rooms, playrooms in daycare facilities and rooms in similar establishments. For vertical installation adjacent to windows. Supply and extract air unit consisting of a casing with fixing brackets, two fans, two air filters, heat recovery, shut-off dampers, bypass damper, sound attenuators, and heat and noise insulation. Special characteristics: – Economical operation due to demand-based fresh air flow rate – Energy-efficient EC radial fans and unit compliant with EN 13779, Class...