Systemair RFOS 315 EC Low Profile Roof Fan Square Base 1 Phase - 315mm
Systemair RFOS 315 EC Low Profile Roof Fan Square Base 1 Phase - 315mm
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Delivery and Warranty
Standard UK Mainland Delivery
If you are not in a rush, then we offer standard delivery and your order should be with you between 2-3 working days.
£7.95
Next Working Day Delivery
Place your order before 12pm Monday to Thursday and receive your order the next working day. Orders placed on Friday before 11am will be processed and delivered on Monday. (Excludes Sunday’s and Public Holidays)
£15.95
Nominated Day Delivery
We know sometimes you will need an order on a particular date in the future. Simply select this option at checkout and add what date you would like to receive the order. We will then contact you to confirm the date. If you need to change this order date then please contact us ASAP.
£15.95
Northern Ireland Delivery
We offer a flat fee rate for Northern Ireland orders, and all are 5-7 working day lead times.
£29.95
Scottish Highlands & Islands Delivery
We only offer a flat fee rate for Scottish Highland & Islands orders, and all are 5-7 working day lead times.
£45.95
Channel Islands Delivery
We only offer a flat fee rate for Channel Islands orders, and all are 5-7 working day lead times.
£45.95
Product Details
Specifications
Product specifications
| Model | RFOS 315 EC |
| Type | Roof fan, horizontal discharge |
| Diameter | 315mm |
| Base plate | Square |
| Max airflow | 3686 m³/h |
| Static pressure | 561 Pa at 1659 m³/h (nominal duty) |
| Motor | EC, 230V 1 Phase |
| Power | 540 W |
| Max temp / IP | 60°C / IP54 motor, IP55 terminal box |
| Noise | 58 dB(A) at 3m |
Summary
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The Systemair RFOS 315 EC is a 315mm low profile roof extract fan delivering up to 3686 m³/h, with a square base plate that sits on Systemair's TG roof curb. A backward-curved composite impeller and EC external rotor motor (beyond IE4) keep running costs and noise low, making it a neat choice for houses, offices, stores and small commercial extract.
It runs on 230V single phase and is fully speed controllable, either from the potentiometer in the IP55 terminal box or from an external 0-10V signal, so it pairs easily with timers, thermostats and humidistats. The black powder-coated Magnelis steel casing is rated corrosion class C5 and the fan discharges horizontally.
- 1 Phase
- EC Motor
- Up to 3686 m³/h
- Speed Controllable
Specifications
| Model | RFOS 315 EC |
| Type | Roof fan, horizontal discharge |
| Diameter | 315mm |
| Base plate | Square |
| Max airflow | 3686 m³/h |
| Static pressure | 561 Pa at 1659 m³/h (nominal duty) |
| Motor | EC, 230V 1 Phase |
| Power | 540 W |
| Max temp / IP | 60°C / IP54 motor, IP55 terminal box |
| Noise | 58 dB(A) at 3m |
Manuals & Guides
Product Description
The Systemair RFOS 315 EC is a 315mm low profile roof extract fan delivering up to 3686 m³/h, with a square base plate that sits on Systemair's TG roof curb. A backward-curved composite impeller and EC external rotor motor (beyond IE4) keep running costs and noise low, making it a neat choice for houses, offices, stores and small commercial extract.
It runs on 230V single phase and is fully speed controllable, either from the potentiometer in the IP55 terminal box or from an external 0-10V signal, so it pairs easily with timers, thermostats and humidistats. The black powder-coated Magnelis steel casing is rated corrosion class C5 and the fan discharges horizontally.
- 1 Phase
- EC Motor
- Up to 3686 m³/h
- Speed Controllable
Specifications
| Model | RFOS 315 EC |
| Type | Roof fan, horizontal discharge |
| Diameter | 315mm |
| Base plate | Square |
| Max airflow | 3686 m³/h |
| Static pressure | 561 Pa at 1659 m³/h (nominal duty) |
| Motor | EC, 230V 1 Phase |
| Power | 540 W |
| Max temp / IP | 60°C / IP54 motor, IP55 terminal box |
| Noise | 58 dB(A) at 3m |
Manuals & Guides
Delivery & Returns
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What airflow does the RFOS 315 EC deliver?
Up to 3686 m³/h at free air, with a nominal duty of 1659 m³/h at 561 Pa.
Is it single or three phase?
Single phase 230V, with an EC motor suitable for 50 or 60 Hz supplies.
How do I control the speed?
Use the potentiometer built into the terminal box, or an external 0-10V signal from a controller, timer, thermostat or humidistat.
What is the difference between RFOC and RFOS?
RFOC has a round base plate; RFOS has a square base plate designed to sit on the Systemair TG roof curb. The fan itself is the same.
Is it suitable for exposed or coastal roofs?
The casing is powder-coated Magnelis steel rated corrosion class C5, so it copes well with harsh outdoor conditions.
How heavy is it?
Around 15.8 kg, which suits lightweight roof structures and makes handling on the roof straightforward.