- Features & Benefits
Material StrengthThis robust and durable unit has a casing manufactured from natural finish Aluzinc, with a louvred air discharge which provides protection against ingress from the elements and is self draining.
Ease of installationAll models are designed for direct connection to standard diameter flexible or rigid circular ducting with long spigots with EPDM rubber U shaped seals for ease of connection.
PerformanceHigh efficiency low tonal noise backward curved centrifugal impellers are directly driven by an AC or EC external rotor motor, designed to be non-overloading and provide high performance characteristics.
Quality AssuranceAll units are designed and manufactured with procedures as defined in BS EN ISO 9001:2008.
Design AppealIdeal for external roof mounting applications where space is a premium.
Full Accessory RangeSpeed controllers, fast clamps, silencers, flexible connectors and auto-changeover panels.
WarrantyEach STDR has a 12 month warranty.
CasingThe unit casing shall be manufactured from 1.2mm thick natural finish Aluzinc. The casing shall be designed so as to minimise vibration and shall incorporate a louvered air discharge guarded against bird ingress. Drain points shall also be provided. Each casing provides an inlet spigot to suit standard circular ducting. EPDM (Ethylene Propylene) rubber U shaped seals (being ozone and UV stable) are used to ensure a good seal back to the duct that is to be attached. Top access panels shall be provided for ease of servicing.
MotorsThe Twin range of units may have either an EC or AC external rotor motor fitted as standard. The motor contains sealed for life bearings. Thermal Class of motors to THCL 130 or 155 dependent on size. Manufactured by Ziehl-Abegg providing increased reliability. All motors are suitable for use in ambient air conditions up to +60°C.
ImpellersHigh efficiency low tonal noise backward curved centrifugal impeller, dynamically balanced to ISO 14694 Grade G6.3 and directly driven by the motor to provide a smooth airflow through the unit.
Quality ManagementAll units in the Elta range are designed and manufactured to procedures as defined in BS EN ISO 9001:2008. They are also tested in accordance with BS848 Part 2 1985 (sound performance) and ISO 5801:2007 (airside performance).
- ACO Panel
- Electronic Controller
- Fast Clamps
- Flexible Connections
- Transformer Controller