Gemini Roof Mounting Twin fans - G2B

This product range is now obsolete and no longer available from Vent-Axia. The information here is provided for reference only.

At a Glance:

High performance roof mounting twin fans.
12/24 hour run & standby facility.
Cowl and base moulded from glass fibre reinforced polyester.

FAQ's Answered:

IP44
Motor Insulation Class 'B'
Maximum operating temperature 40°C
Standard Thermal Overload Protection
Manufacture controlled to BS EN ISO 9001
Performance tested to BS 848 Part 1

Roof Mounting Centrifugal Twin Fans have been specially developed for high pressure ducted systems, designed around an aerodynamically shaped roof cowl, offering maximum performance, reliability and minimum noise levels. G2B roof cowl assemblies are moulded from glass fibre reinforced polyester, which offers high impact resistance and provides a rigid profile against strong winds and is resistant to UV light, delivered on-site ready assembled for quick and easy installation.

Standard colour BS00A05, alternative B.S colours available on request. Suitable for flat or inclined roofs (max. angle 30°). Designed for kerb or purlin mounting.

Designed and developed to provide one of the most powerful roof mounting twins on the market, available in six sizes, with extract performances ranging from 0.113m³/s up to 2.085m³/s (406m³/h to 7506m³/h), with pressure characteristics of up to 350Pa.

Motors

The Centrifugal Roof Twin fans feature two proven external rotor motors and backward curved impellers selected for performance and non-overloading characteristics. The assembly is dynamically balanced to VDI 2060.

The motors in this range are protected to IP44 according to BS EN 60529. Ball bearings are greased for life and are designed to run at any angle. Insulation is Class 'B' (from -30°C to +40°C). Manufacture is controlled to BS EN ISO 9001 standards.

Electrical

Single phase 220-240V Hz. Capacitor start and run. Three phase 380-415V 50Hz.

DIMENSIONS:

Unit A B C D E Inside Curb Outside Curb
200 800 470 280 700 370 325 × 650 425 × 750
300 975 550 350 875 450 400 × 825 500 × 925
350/400 1210 675 440 1000 500 400 × 900 600 × 1100
450/500 1430 830 540 1200 600 500 × 1100 700 × 1300
Image of Trackmaster Twin Fan Controller (ITC)
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.
Please call 0344 856 0590 for further availability information.
Image of Trackmaster Twin Fan Controller (ITC-DS)
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
Please call 0344 856 0590 for further availability information.
Image of RSC - Remote Setback Control
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)
Please call 0344 856 0590 for further availability information.
Image of Remote Visual Indicator (RVC)
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.
Please call 0344 856 0590 for further availability information.

 

Raadpleeg de tab Downloads voor technische informatie

 

 

Overview

Roof Mounting Centrifugal Twin Fans have been specially developed for high pressure ducted systems, designed around an aerodynamically shaped roof cowl, offering maximum performance, reliability and minimum noise levels. G2B roof cowl assemblies are moulded from glass fibre reinforced polyester, which offers high impact resistance and provides a rigid profile against strong winds and is resistant to UV light, delivered on-site ready assembled for quick and easy installation.

Standard colour BS00A05, alternative B.S colours available on request. Suitable for flat or inclined roofs (max. angle 30°). Designed for kerb or purlin mounting.

Designed and developed to provide one of the most powerful roof mounting twins on the market, available in six sizes, with extract performances ranging from 0.113m³/s up to 2.085m³/s (406m³/h to 7506m³/h), with pressure characteristics of up to 350Pa.

Motors

The Centrifugal Roof Twin fans feature two proven external rotor motors and backward curved impellers selected for performance and non-overloading characteristics. The assembly is dynamically balanced to VDI 2060.

The motors in this range are protected to IP44 according to BS EN 60529. Ball bearings are greased for life and are designed to run at any angle. Insulation is Class 'B' (from -30°C to +40°C). Manufacture is controlled to BS EN ISO 9001 standards.

Electrical

Single phase 220-240V Hz. Capacitor start and run. Three phase 380-415V 50Hz.

Technical

DIMENSIONS:

Unit A B C D E Inside Curb Outside Curb
200 800 470 280 700 370 325 × 650 425 × 750
300 975 550 350 875 450 400 × 825 500 × 925
350/400 1210 675 440 1000 500 400 × 900 600 × 1100
450/500 1430 830 540 1200 600 500 × 1100 700 × 1300

Accessories

Image of Trackmaster Twin Fan Controller (ITC)
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.
Please call 0344 856 0590 for further availability information.
Image of Trackmaster Twin Fan Controller (ITC-DS)
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
Please call 0344 856 0590 for further availability information.
Image of RSC - Remote Setback Control
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)
Please call 0344 856 0590 for further availability information.
Image of Remote Visual Indicator (RVC)
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.
Please call 0344 856 0590 for further availability information.

Downloads