YONOS Maxo de WILO - Q-Tech ®

YONOS Maxo circulating pump

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Regular price €1.424,26 Sale price€801,22
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At Q-TECH, we apply the same clear rules for everyone: the law protects you, and when applied correctly, it protects us as well. By processing your purchase, you accept our General Terms and Conditions of Sale. If you are purchasing as a consumer (B2C), nothing stated herein limits the rights granted to you by mandatory law (RDL 1/2007, TRLGDCU): the 3-year legal warranty of conformity and the right of withdrawal under the terms and with the exceptions legally provided, which are detailed below. References to "B2B" apply only to businesses and professionals.

Your guarantees

  • Rights intact: 14 days of withdrawal from receipt for most products—subject to the legal exceptions you will see below, such as goods made to your specifications—and a 3-year legal warranty of conformity, under the terms of the TRLGDCU.
  • Conformity with the description: we guarantee that the equipment will correspond to the published technical description and what one could reasonably expect from it (arts. 115 et seq. TRLGDCU). Images and videos are for guidance only: the manufacturer may supply a more recent revision of the product or introduce minor aesthetic, packaging, or firmware changes, without this constituting a lack of conformity as long as the described characteristics and performance are maintained.
  • Traceability that also protects you: we document the condition, serial number, and seal of each piece of equipment upon shipment, and we video-record the opening of returns; this is your proof of the condition in which the goods were delivered.

Responsible use and your part

  • If you are thinking of returning it, keep it as you received it: without installing or activating it, with its seals, accessories, and packaging intact. This is how to ensure a full refund, without deductions.
  • Handling that exceeds inspection reduces value: handling the equipment beyond what is necessary to verify its nature and operation may result in a real, assessed, and case-by-case justified deduction (art. 108.2 TRLGDCU), never a fixed percentage. In particular: activating or registering the serial number, linking it to a manufacturer's account or app, circulating water through hydraulic equipment, unsealing probes, or installing software or consumables. Initial inspection of the product does not lead to a deduction.
  • The same item must be returned: withdrawal requires returning the supplied unit. Different equipment, or equipment with prior use, age, or wear prior to purchase, does not constitute a valid withdrawal.
  • Installation and cybersecurity, shared responsibility: this is technical hardware; you are responsible for correct installation, credentials, patches, and backups, while we deliver a compliant product. Q-TECH is not liable for damages resulting from poor installation, incorrect configuration, or omission of patches by the customer or third parties (in B2C, without prejudice to the legal warranty and liability for intent or negligence, arts. 86 and 130 TRLGDCU).
  • Delivery of bulky goods: delivery is made to the curb. B2C: transport risk is ours until physical delivery (art. 66 ter); we recommend noting visible damages on the delivery note and notifying us of breakages within 24-48 hours with photographs to activate the insurance. B2B: inspection and notation on the delivery note are mandatory; hidden damages must be reported within 24 hours (art. 366 CCom). Unjustified rejection or incorrect shipping information will entail the actual outbound and return costs (approx. €85-550 for heavy machinery).

Made to your measure (Advanced Pre-Assembly)

  • If your order includes equipment, racks, hydraulic assemblies, or technical rooms made or configured according to your specifications (permanent joints, custom cuts or wiring, parameterization, pressure testing), these are custom goods without the right of withdrawal from the conclusion of the contract (art. 103.c TRLGDCU; CJEU Case C-529/19), which is informed before purchasing and documented in the signed Order Note. A test you request without permanent modification retains your right of withdrawal, with only the actual loss of value caused by that test being deducted. Would you prefer to receive it tested, configured, and ready to connect, without assuming these risks? Contract our Advanced Pre-Assembly or the prior technical audit.

If you are purchasing as a business or professional (B2B)

  • The transaction is governed by the Commercial Code: firm sale, without the right of withdrawal; notification of defects within 4 days (apparent) / 30 days (hidden), arts. 336 and 342. Q-TECH acts as a distributor and excludes indirect damages, loss of profit, and data loss, limited to the price of the equipment, without prejudice to the manufacturer's commercial warranty.

Product warnings v1.0 · June 2026. Information summary; the complete and binding conditions are those published at q-tech.es.

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Wilo-Yonos MAXO circulator pump

The Wilo-Yonos MAXO is a glandless circulator pump with threaded or flanged connection, EC motor with automatic power adjustment.

Application of the Wilo-Yonos MAXO circulator pump

All hot-water heating systems, air-conditioning applications, closed cooling circuits and industrial circulation systems.

Special features/product advantages of the Wilo-Yonos MAXO circulator pump

- LED indicator for full transparency regarding set delivery head, speed, or potential errors

- Simple adjustment of three speed levels when replacing an unregulated standard pump

- Simplified electrical connection thanks to the Wilo-Connector

- Assurance of system availability through collective fault signal

- Compact design and guaranteed simple operation

Equipment/function of the Wilo-Yonos MAXO circulator pump:

Operating modes

  • Δp-c for constant differential pressure
  • Δp-v for variable differential pressure
  • n = constant (3 speed levels)

Manual functions

  • Operating mode setting
  • Pump output setting (delivery head)
  • Speed level setting
  • Automatic functions

Infinitely variable power adjustment depending on the operating mode

De-blocking function

Soft start

Integrated full motor protection

Signal and indication functions

Collective fault signal (potential-free NC contact)

Fault signal light

LED segment display for indicating delivery head and error codes

Indication of the set speed (C1, C2 or C3)

Equipment

Wrench attachment point on the pump housing (for threaded connection pumps)

Quick electrical connection with the Wilo-Connector. For mains and SSM connection with integrated strain relief

For flanged pumps: Flange versions

Standard version for DN 40 to DN 65 pumps: PN 6/10 combination flange (PN 16 flange according to EN 1092-2) for PN 6 and PN 16 counter flanges

Standard version for DN 80 / DN 100 pumps: PN 6 flange (PN 16 version according to EN 1092-2) for PN 6 counter flange

Scope of delivery of the Wilo-YONOS MAXO circulator pump:

  • Pump
  • Incl. seals for threaded connection
  • Incl. washers for flange bolts (for nominal connection diameters DN 40 - DN 65)
  • Incl. installation and operating instructions

Technical data for the Wilo-YONOS MAXO circulator pump:

  • Permissible temperature range from -20 °C to +110 °C
  • Mains connection 1~230 V, 50/60 Hz
  • Protection class IP X4D
  • Flanged connection DN 32 to DN 80
  • Max. operating pressure of the standard version: 6/10 bar or 6 bar (special version: 10 bar)

Materials of the Wilo-Yonos MAXO circulator pump:

  • Pump housing: Cast iron with cataphoretic coating
  • Shaft: Stainless steel
  • Bearing: Carbon, metal-impregnated
  • Impeller: Plastic

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