435_roofunits

FIXED PITCH FANS

ROOF UNITS

ROOF UNITS
KEY FEATURES - 280 mm - 1000 mm diameter - Volume flow up to 10.5 m³/s (22250 ft³/min) - Static pressures up to 750 Pa (3.0 in. wg) - Three fan types allowing versatility of performance - Rugged fibre glass construction - Completely assembled units - Robustly packed - Three types of mounting - Wide range of motor options - Full range of ancillary equipment available
SIZES: DSP/DPI: 250, 315, 355, 400, 450, 500, 630, 710, 800 and 1000 mm diameter. DSM/DSC: 200, 250, 330, 400, 500, 630 and 760 mm diameter
FAN PERFORMANCE: All fans are tested to the latest internationally recognised standard ISO5801 Part 1, installation category D for aerodynamic performance and BS848 Part 2 (1985) for acoustic performance. Coupled with the above fan diameters, the adjustable pitch Aerofoil impeller gives the exact performance required, with a non-overloading fan characteristic.
IMPELLERS: DSP/DPI: Propeller fans are as used in 2101GP fan. Product often used in low pressure applications. DSM/DSC: For higher pressure development, purpose designed mixed flow (DSM) and centrifugal (DSC) impellers are available.
MOTORS: All motors are totally enclosed and are rated to Class F. Most models can be speed controlled by Woods of Colchester speed controllers. Flameproof motors are available. Please refer to your local Woods Sales Centre.
ELECTRICAL SUPPLY: 220-240 V / 50 Hz / 1 ph 380-420 V / 50 Hz / 3 ph	TEMPERATURE RANGE: -40°C to 50°C.
CASINGS (COWLS): The cowls are manufactured from cold pressed fibre glass, which offers long life in the severest weather conditions. The colouring contains an ultra violet stabiliser, which ensures the cowls will not fade due to sunlight. Standard colourants include: BS 4800 08B 21 (Fawn) BS 5252 10 A05 (Goose wing grey) - Please specify when ordering. The units are fully assembled, and leave our works in sturdy packaging. This allows quick and easy installation on site. Three methods of mounting, curb for a flat roof, purlin for a sloping roof or wall mounting (by using a Woods adapter). ANCILLARY EQUIPMENT: Bird Guards, Soaker Sheets, Inlet Guards, Purlin Boxes, Acoustic Curbs, Local Isolators, Speed Controllers. Please note that we also manufacture a range of belt drive, twin toilet units and roof input units not shown in this catalogue. Please refer to your local Woods Sales Centres for further details.