This liquid heat exchanger with fan for Autoterm Flow is a SIROCO ARIZONA LN fan coil for distributing heat from a liquid-based heating system. The integrated 12 V low-noise fan draws room air through the heat exchanger and releases it as heated air through the unit's air outlet.
The heat output is 2.75 kW with ethylene glycol-based heating fluid and 2.8 kW with water. The nominal air volume is 110 m³/h, and the fan has one speed with an electrical power consumption of 12 W. The noise level is 50 dB(A). The fan can also be used for air circulation when the liquid heater is not activated.
The ARIZONA LN has an integrated switch, thermostat, valve, and front control. The maximum permitted internal temperature is 100 °C, while the maximum attainable internal temperature with an Autoterm Flow heater is 88 °C. The electrical connection is 2-pin; the male connector kit FR052 is sold separately.
The unit is designed for wall or bulkhead mounting. The front panel measures 269 × 198 mm, while the depth behind the mounting surface is 128 mm and the protrusion in front of the mounting surface is 19 mm. The mounting cutout is 235 × 170 mm, and fastening is performed through six 3.7 mm diameter holes. The removable front panel is heat-resistant as well as impact and scratch-resistant.
The inlet and outlet have Ø16 mm hose connectors. The heat exchanger is compatible with Autoterm Flow 5 D, Flow 5 B, and Flow 14D and can be included in systems with heaters 50.261.12, 50.262.12, and 50.262.24. The fan still requires 12 V, even when used together with a 24 V liquid heater. The unit can alternatively be connected to a vehicle's or engine's coolant circuit.
For the liquid circuit, Ø16 mm pipes or hoses can be used, including item no. 17.740.16. Ensure correct dimensioning of the liquid circuit, power supply, and mounting cutout during installation.
Key featuresHeat output: 2.75 kW with ethylene glycol and 2.8 kW with water
Nominal air volume: 110 m³/h
Integrated 12 V low-noise fan with one speed
Electrical power consumption: 12 W
Noise level: 50 dB(A)
Integrated switch, thermostat, valve, and front control
Inlet and outlet with Ø16 mm hose connectors
Mounting cutout: 235 × 170 mm
Wall or bulkhead mounting
Product weight: 1.48 kg
