GDD - Galaxy Twin Inline Direct Driven Fans

Description

Overview

The GDD Galaxy In-line Direct Driven Twin fan range represents the latest development from Vent-Axia in high performance, run and standby twin fans. Designed to be controlled in conjunction with Vent-Axia Trakmaster twin fan controller range, the total package offers the end user flexibility when interfaced with or without a (BMS) Building Management Systems, such as: manual selection; 12/24hr auto changeover ensuring the extended life of the fan and motor; night setback during low levels of occupancy, for energy management control during 24hr extraction.

The unit casing is manufactured from Heavy Gauge Galvanised Steel fitted with inlet and outlet spigots, with further optional inlet positions. Individual gravity return shutters are fitted as standard to prevent air re-circulation through the standby fan or system during shut down periods. Optional acoustic lined casings are available. The Galaxy In-Line Direct Driven Twin Fan range is specifically designed for horizontal mounting only. Assembly is controlled to BS EN ISO 9001.

Top view with access panel removedAll units are pre-wired to an IP44 terminal box, fitted to the outer casing to reduce installation time and cost. An optional IP65 service switch is available on request. Access to the fan section is via an easy to remove top access panel, for cleaning and maintenance during shut down periods. The Galaxy range is available in ten models with extract performance ranging from 0.067m³/s up to 1.488m³/s (201m³/h to 4820m³/h), with pressure characteristics of up 400Pa.

Motors / Impellers

Galaxy features external rotor motor and DIDW forward curved centrifugal impeller assemblies specifically chosen for performance. The assembly is dynamically balanced to ISO 1940 Grade G.6.3. Quality Class G.6.3. Ball bearings are greased for life and allow the fan to run at any angle. Insulation is Class B (from -15°C to + 40°C).

Electrical

All motors are single phase 230-240V 50 Hz. A terminal box is supplied with all models protected against dust and water jets from any angle. All motors are fitted with Standard Thermal Overload Protection (S.T.O.P.) by means of a thermal contact switch incorporated in the windings to prevent motor damage by overloading/overheating.

Accessories

 
Trackmaster Twin Fan Controller (ITC)
The ITC model provides automatic changeover on fan failure as well as enabling a manual selection of either fan for duty sharing or test purposes. (BMS compatible via volt free contacts). This controller must have a permanent live supply. Any On/Off switching must be via the sensor connections S1 and SG terminals.
Stock Ref No: 10314200



 



Trackmaster Twin Fan Controller (ITC-DS)
The ITC-DS model (Duty sharing). Incorporates a timing mechanism which operates alternate fans on 12 or 24 hour intervals, thus ensuring the extended life of the fan bearings. The controller also provides automatic changeover on fan failure along with the facility for manual selection of either fan. (BMS compatible via volt free contacts). This controller must have a permanent live supply. Any On/Off switching must be via the sensor connections S1 and SG terminals
Stock Ref No: 10314210
 
RSC - Remote Setback Control
The RSC multi-speed control system offers 2 speed fan versatility eg. Energy Management for night-time setback. Can be used in conjunction with Vent-Axia ITC, ITC-DS controllers using 5 step auto-transformer speed controllers for speed selection. Uses 24V output from ITC controller. Dimensions:86mm x 178mm x 100mm (Width x Height x Depth)
Stock Ref No: 10314230A
 
Remote Visual Indicator (RVC)
Wired in conjunction with either an ITC or ITC-DS controller the RVC can be located up to 100m away using low cost ELV wiring. The compact, single gang RVC ELV (Extra Low Voltage) remote visual controller indicates status of Fan 1 and Fan 2 with status/warning lights. Push button allows Fan 1 and Fan 2 with standby (Off) to be selected.
Stock Ref No: 10314220

Dimensions


Unit a b c d e f Weight kg
GDD1X 210 530 425 175 100 55 20
GDD2 260 740 525 225 150 55 20
GDD2X 260 740 525 225 150 55 20
GDD2XH 260 740 525 225 150 55 20
GDD3 330 740 600 250 150 90 20
GDD4S 390 900 700 350 200 95 30
GDD4 390 900 700 350 200 95 30
GDD5 440 1000 800 400 325 57 52
GDD6 440 1000 800 450 350 44 59
GDD7 575 1250 1000 650 400 86 64

 


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