Roof Mounted Fan Integrated Control Fan
CTB ECOWATT PLUS Series

Centrifugal roof fans Low-profile, self-regulating, horizontal discharge centrifugal roof fans, designed for direct mounting to circular ducts, intended for ventilation of homes and small spaces, in compliance with the Technical Building Code. Features include a backward-curved impeller made of galvanized steel, galvanized sheet structure protected by black polyester paint, aluminum cover, bird safety mesh made of galvanized sheet, sealing gasket on the duct coupling flange, and an on/off switch.

Motors
Brushless direct current (DC) external rotor motor, high efficiency, low consumption, 230V±10% 50/60Hz power supply, IP44, ball bearings, and thermal protector.

Integrated Control
Supplied with integrated plug & play control preconfigured to operate at constant pressure (COP). The electronics include a potentiometer and relays that allow us to regulate the fan and modify the operating modes: COP, CAV, VAV, MIN/MAX. Additionally, the electronics incorporate:
- Remote ON/OFF relay.
- Boost relay.
- Night mode relay.
- Switched alarm relay.
- Connection for Modbus RTU communication.

Constant Pressure Mode (COP)
- Minimum fan speed between 0-50%.
- Maximum fan speed between 50-100%.
- Night position adjustable between 25-100% of pressure at maximum speed.

Constant Air Volume Mode (CAV)
- Minimum fan speed between 0-50%.
- Maximum fan speed between 50-100%.
- Night position adjustable between 25-100% of air volume at maximum speed.
Note: The CTB/4-400/160 ECOWATT PLUS model is not compatible with this operating mode.

Variable Air Volume Mode (VAV)
- Up to 2 analog inputs, 0-10V or 4-20mA.
- Maximum demand selection when 2 analog inputs are connected.
- Minimum fan speed between 0-50%.
- Maximum fan speed between 50-100%.
- Alarm relay output.

Minimum-Maximum Mode
- Digital input for speed selection.
- Minimum fan speed between 0-50%.
- Maximum fan speed between 50-100%.

Wireless Connection
By purchasing the SPCM-WS ECOWATT PLUS accessory, we can connect a smartphone to the electronics via offline WI-FI connection. Using the web application, we can configure the fan in an easy and intuitive environment. Additionally, we can make advanced adjustments and schedule programming.