Centrifugal roof mounted fans
MAX-TEMP CTVB / CTVT Series - Vertical discharge

Range of centrifugal roof mounted fans in vertical discharge format, designed for smoke extraction in fire conditions and certified F400-120 (1). Suitable for air stream temperature up to 120ºC.
- Base manufactured from galvanised sheet steel.
- High efficiency centrifugal backward curved impeller manufactured from galvanized sheet steel.
- Cowl manufactured from spun aluminium.
- All models incorporate bird-proof guard
- Available, depending on the model, in 4, 6 or 4/8 poles.
(1) Except 180 and 200 models

Motors
Models from 180N to 400N
- Single-phase, single-speed motor 220- 240V50Hz, IP55, class F, with safety thermal overload protection*. Speed controllable by voltage**.
- Three-phase single-speed motor 220-240/400-415V-50Hz, IP55, class F, with safety thermal overload protection*. Speed controllable by frequency inverter and by voltage**.
- Three-phase 2-speed motor 380- 4150V50Hz, 4/8 poles, IP55, class F, with safety thermal overload protection*.
Models from 450N to 630N
- Three-phase single-speed motor 220-240/400-415V-50Hz, IP55, class F. Speed controllable by frequency inverter*.
- Three-phase 2-speed motor 380- 4150V50Hz, 4/8 poles (only 450N), IP55, class F.
Model 630H, 710N and 710H
- Three-phase single-speed motor 400-415V-50Hz, IP55, class F. Speed controllable by frequency inverter*.

* When thermal protection are connected, the electrical installation must be equipped with a security system that, in case of fire, allows the maximum speed of the fans whatever the current state of the thermal protection.
** When using a speed controller, the electrical installation must be equipped with a security system that allows, in case of fire, the maximum speed of the fans.

Additional information
180N, 200N and 225N models are specially designed for extracting smokes from fireplaces.
Three-phase 2-speed motor 380-450V 50Hz, 6/12 poles (from 450N to 710H) on demand.