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At Hewa you will find circulation pumps for ALPS EXCLUSIVE ARTIC and URBAN LINE heat pumps. This category is intended for installers, service technicians and technical buyers looking for a suitable pump for water-side circulation, maintenance, fault diagnosis or replacement.
A circulation pump directly affects flow rate, heat transfer, system pressure and operational reliability of the heat pump installation. Always check the exact heat pump model, article number, EAN, pump type, voltage, connection size, head, flow rate and technical version before ordering.
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Circulation pumps for ALPS EXCLUSIVE ARTIC and URBAN LINE heat pumps
Circulation pumps are used in compatible ALPS EXCLUSIVE ARTIC and URBAN LINE heat pumps to move water through the hydraulic circuit. The pump supports correct flow between the heat pump, heat distribution system, buffer tank or domestic hot water component and affects efficiency, temperature difference, system pressure and operational reliability.
For service, diagnosis or replacement, the circulation pump must match the exact technical configuration of the unit. The correct spare part depends on the series, unit type, article number, connection, voltage, pump capacity, head, flow rate, mounting position and technical configuration of the heat pump installation.
Important checks for circulation pumps
- Check whether the circulation pump is suitable for the relevant ALPS EXCLUSIVE ARTIC or URBAN LINE version.
- Compare the article number, connection size, supply voltage, pump curve, plug connection and mounting position with the original component.
- Check whether the pump runs freely and is not blocked by dirt, air, magnetite, scale build-up or long periods of standstill.
- Look for fault codes, insufficient flow, abnormal temperature differences, flow noise, pressure problems or a pump that does not start.
- Inspect wiring, connectors, PCB control signal, water quality, dirt separator, air bleeding and hydraulic balancing of the system.
Application, replacement and technical attention points
A circulation pump may need to be replaced in case of blockage, electrical failure, bearing wear, insufficient flow, fault messages or when the heat pump detects insufficient water circulation. Contamination in the water-side system, air in the pipework, a blocked filter or incorrect hydraulic balancing can also cause symptoms similar to a defective pump.
Work on electrical and hydraulic components must be carried out by a qualified technician. After replacement, the flow direction, system pressure, air bleeding, water quality, electrical connection, pump setting, flow rate, temperature difference and any controller fault messages should be checked.
Frequently asked questions about circulation pumps
What is a circulation pump used for in a heat pump?
A circulation pump provides water circulation through the hydraulic circuit of the heat pump installation. This allows heat to be transferred correctly to the heating system, buffer tank or domestic hot water circuit.
When should a circulation pump be replaced?
Replacement may be required when the pump no longer starts, is blocked, causes fault codes, delivers insufficient flow, produces excessive noise or is no longer electrically controlled correctly.
Does every circulation pump fit every ALPS EXCLUSIVE heat pump?
No, circulation pumps differ by series and unit type. Always check the article number, connection size, voltage, pump capacity, head, flow rate, mounting position and technical configuration before ordering a spare part.
Should the water-side system also be checked?
Yes, always check water quality, dirt separator, filters, air bleeding, system pressure and shut-off valves. A contaminated or poorly vented system can cause the same symptoms as a defective circulation pump.
Can a circulation pump be installed by the end user?
For safe and correct operation, installation should be carried out by a qualified technician. Electrical connection, flow direction, air bleeding, system pressure and controller operation must be technically verified.