Designed specifically for applications with limited available height such as ceiling voids. Access (to be specified at time of ordering) can be from above or below with heater and motor connections on the left or right hand side.
The casing comprises of an AA25 anodised aluminium frame with high density glass reinforced nylon corners and double skinned panels of 0.7mm galvanised steel enclosing 25mm of 60kg/m³ mineral fibre insulation. All panels are retained by proprietary fasteners. All panels are sealed by a purpose designed leak seal gasket fully retained into the aluminium framework.
Minislim Unit - Duties from 0.05m³/s to 0.26m³/s
Similar to the Slimline unit but even more compact for smaller duties with a choice of 2 fan sizes within one unit size. The standard unit comprises; - inlet flexible connector, EU5 bag filter, l.p.h.w. or electric heater, direct drive fan and outlet flexible connector. Access is top or bottom. The unit is suitable for internal mounting only.
Slimline Unit - Duties from 0.05m³/s to 0.92m³/s
Low profile direct drive units with forward curved centrifugal fans designed for applications where restricted height is a problem and top or bottom access is required. There are two sizes of unit each with four different fan options. All units are single phase with the exception of the SL081-4. They are all speed controllable and have Standard Thermal Overload Protection (S.T.O.P.). The standard unit comprises; inlet flexible connector, EU5 bag filter, l.p.h.w. or electric heater, direct drive fan and outlet flexible connector. The unit is suitable for internal mounting only.
Direct Drive Fans have forward curved centrifugal impellers factory matched to an external rotor motor and statically and dynamically balanced to ISO 1940 as a complete assembly. The external rotor motors have sealed for life ball bearings. They incorporate Standard Thermal Overload Protection and are fully speed controllable. Insulation is Class B and the enclosure IP44 to DIN 40050 with the electrical design corresponding to DIN IEC 38. The motors are suitable for ambient temperatures of up to 40°C and atmospheres up to 95% R.H.
The Flexible Connectors are manufactured from Revertex JPT 20 with ductmate flanges to DW142.
Bag Filters are manufactured from fire retardant synthetic material with galvanised steel frames. The filter grade is EU5 to Eurovent 4/5.
LPHW Heater Batteries
L.P.H.W. Heater Batteries are constructed from copper tube, mechanically bonded to aluminium fins with the complete assembly housed in a galvanised steel casing. The coil headers and return bends are totally enclosed within the air handling unit casing. Flow and return connections are located on the same side of the unit and have male B.S.P. thread. L.P.H.W. Heater Batteries are pressure tested under water to 250p.s.i.
Electric Heater Batteries
Electric Heater Battery elements are constructed from Nichrome 5 spiral resistance wire surrounded by magnesium oxide powder and sheathed in stainless steel. The elements are carried on a galvanised steel frame. All electric heaters incorporate a thermal cut out device. Electrical connections are via a flush mounted terminal box on the outside of the air handling unit casing.