Belimo X8016M.21AA4 - 2-way expansion valve

Belimo X8016M.21AA4 – expansion valve

2-way expansion valve with integrated superheat controller and safety shut-off function with SuperCap. The valve is designed for stationary electric heat pumps, air-conditioning systems and dehumidifiers. When using flammable refrigerants, the user must check the product's suitability for the specific installation.

Key technical data

• Refrigerants: CFC, HFC, HFO and R290; suitable for A3 safety class refrigerants (ISO 817).
• Cooling capacity: 200 kW for R134a at Tc = 50°C, Te = 5°C, SC = SH = 5 K.
• Pipe connection: ODF 16-16 mm internal solder socket; PN 50.
• Nominal supply: AC/DC 24 V; power consumption during operation 1.5 W, 2.6 VA for cable sizing.
• Feedback signal: Modbus or analogue 0...10 V.
• Motor running time: 20 s / 90°; safety function running time: 15 s / 90°.
• Permissible operating pressure ps: 5000 kPa; maximum differential pressure ∆pmax: 3500 kPa.
• Fluid temperature: -20...70°C [-4...158°F]; with ZCQ-E: 70...120°C [158...248°F]. Ambient temperature: -30...50°C [-22...122°F], without radiation effects.
• Flow characteristic: equal percentage (VDI/VDE 2178); tightness: air-bubble tight, leakage rate A (EN 12266-1).
• IEC/EN degree of protection: IP54; IEC/EN protection class: III, Safety Extra-Low Voltage (SELV).
• Body: CW617N brass; closing element: AISI 316L stainless steel.
• Mounting position: from vertical to horizontal relative to the stem; installation with the stem pointing downwards is not permitted.
• Weight: 0.59 kg; dimension L according to the manufacturer's table: 180 mm.

Cables are not included in the delivery; the manufacturer specifies using Belimo Z-C24X4... cables only.