Belimo X8028M.1AAA4 - two-way expansion valve

Belimo X8028M.1AAA4 – expansion valve

Two-way expansion valve with integrated superheat controller and SuperCap safety shut-off. The technical data sheet states a cooling capacity of 100 kW for R134a at Tc = 50°C, Te = 5°C, SC = SH = 5 K.

Key features and specifications

• Refrigerants: CFC, HFC, HFO and R290; suitable for A3 safety class refrigerants (ISO 817).
• Connection: internal ODF 28-28 mm solder socket; PN 50.
• Rated voltage: AC/DC 24 V; power consumption during operation: 1.5 W; power consumption for cable sizing: 2.6 VA.
• Communication: MP-Bus; feedback signal: Modbus or analogue 0...10 V.
• Motor operating time: 20 s / 90°; safety function operating time: 15 s / 90°.
• Permissible operating pressure ps: 5000 kPa; maximum differential pressure ∆pmax: 3500 kPa.
• Medium temperature: -20...70°C [-4...158°F]; with ZCQ-E: 70...120°C [158...248°F]. Ambient temperature: -30...50°C [-22...122°F].
• Tightness: air-bubble tight, leakage rate A (EN 12266-1); flow characteristic: equal percentage (VDI/VDE 2178).
• Body: Brass CW617N; closing element: Stainless steel AISI 316L.
• IEC/EN degree of protection: IP54; IEC/EN protection class: III, Safety Extra-Low Voltage (SELV).
• Permissible mounting position: from vertical to horizontal relative to the stem; installation with the stem pointing downwards is not permitted.

Cables are not included; use only Belimo Z-C24X4... cables.