The Danfoss RGE‑ZL‑DS is a robust, compact fan-speed controller designed for air-cooled condenser systems. It features an integrated pressure sensor and phase-angle control to regulate fan motor speed based on condensing pressure, enabling noise reduction and energy efficiency. A built-in switch allows selection between “cut-off” or “minimum speed” modes. Housed in an IP casing with adjustable range from to  bar.

 Key Features

Model & Danfoss P/N: RGE‑ZL‑DS, H
Application: Controls condenser/AC fan via motor phase-angle modulation tied to system pressure
Pressure Range: Factory‑set  bar; adjustable – bar operation (– psi)
Pressure Sensor: Internal Bellows mechanism; Schrader valve flare ¼″– UNF connection;  mm capillary
Electrical Specs:

• Supply: – V AC, / Hz

• Output: Up to  A single-phase fan drive

• Selectable mode: Cut-off or keep fan at % speed ( Hz) / % ( Hz) below setpoint
Ambient Conditions: – °C to + °C
Protection Ratings: IP housing; resistant to most refrigerants (R, Ra, RA/C, RC/F, RA, RA, RA)
Mechanical Dimensions: Net weight ~. kg; gross ~. kg; enclosure rating IP
Durability: Burst pressure rating  bar; max working pressure  bar
Certifications: CE, UKCA, EMC, CSA; wide refrigerant compatibility

Danfoss – RGE-Z1L4-7DS (061H3045) – Condenser Fan Speed Controller, 230 V

Danfoss – RGE-Z1L4-7DS (061H3045) – Condenser Fan Speed Controller, 230 V