The Nibe 067320 (also categorized as Nibe CPD 11-25/75) is an OEM Grundfos high-efficiency circulation pump designed for Nibe heating systems, most notably as a climate system/heating circuit pump or primary loop pump in air-source and ground-source installations.

Technical Specifications

• Nibe Part Number: 067320 (CPD 11-25/75)

• Pump Model: Grundfos UPM2 K 25-75 180

• Port-to-Port Length: 180 mm

• Port Connection: 25 mm (G 1½" connection thread standard)

• Maximum Head (Pressure): 7.5 m (75 dm)

• Power Supply: 230 V, 50/60 Hz

• Ingress Protection: IP44 (splash-proof rating)

• Speed Control: Speed-controlled via PWM signal from the main controller board to continuously dynamically balance flow according to system demand.

System Compatibility

This pump is commonly integrated across Nibe air-to-water heat pump systems and indoor modules, including:

• Air Source Outdoor Units: Nibe F2040, F2050, F2120, F2300, and S2125

• Indoor Modules / Ground Source: Selected ground-source heat pump models and VVM indoor modules using a 7.5 m head circulation pump.

Diagnostic & Replacement Notes

• High Pressure (HP) Alarms: A failing or blocked circulation pump restricts water flow through the condenser heat exchanger. This leads to rapid heating of the internal refrigerant loop, triggering HP Alarms or high condenser outlet temperature faults on the display panel.

• Control Harness: Because the pump's speed is modulated by the Nibe controller (PWM interface), ensure both the main power cable and the separate 2-wire/4-wire control signal cable are properly connected when replacing the pump.