Refurbished Wolf Wolf

Wilo pump RSL15/6.7 HE-3 C Ku Wolf – Ref. 4512947

Bomba Wilo RSL 15/6.7 HE-3 C Ku de 3 velocidades que mueve el agua del circuito de calefacción. La referencia Wolf 8602721 corresponde a este tipo de bomba en CGB-K-20, CGB-20 y otras variantes Wolf. Esta unidad Wilo 4512947 tiene aplicación registrada para CGB-K-20.

Type of part: Wolf
Status: Refurbished
Catalogue reference: 4512947
Warranty: 1 year

VAT included OUT OF STOCK

Compatibility

Wolf boilers compatible with reference 4512947

Wolf with reference 4512947. A verified compatibility: CGB-K-20. There are 7 other models that we are still checking.

Proven compatibility

Boiler model	Family	Verification
Wolf CGB-K-20	Wolf	Contrasted

Models pending verification

These models are associated with this reference, but we have not finished verifying them yet, so we do not consider them compatibleIf your boiler is one of them, send us a photo of the part you are going to replace and we will verify it before you purchase.

Wolf CGB-20	Wolf	Unconfirmed
Wolf CGB-11	Wolf	Unconfirmed
Wolf CGB-24	Wolf	Unconfirmed
Wolf CGB-K-24	Wolf	Unconfirmed
Wolf CGS-24/200	Wolf	Unconfirmed
Wolf CGS-20/160	Wolf	Unconfirmed
Wolf CGW-11/100, CGW-20/120 and CGW-24/140	Wolf	Unconfirmed

Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.

Guide

How to check if reference 4512947 is the part for your boiler

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

Look at the motor label: it should say RSL15/6.7 HE-3 C Ku and the number 4512947.
Check the powers: 44, 65, and 87 W at the 3 speeds.
Check the model and year on your boiler's label: in the old CGB-11, CGB-20, and CGB-24 (up to 2005), they do not match on the pump.
Send us a photo of the pump label and the boiler control board from Contact.

Diagnosis and fault codes

Symptoms that require diagnosis in the wolf 4512947

Common symptoms and faults

01
The radiators do not heat up even though the boiler turns on.
Cause: Check that the circuit switches are open and test the 3 speeds.
02
Noise or vibration in the pump.
Cause: Bleed the air from the radiators and boiler. If it continues, the pump may be worn out.
03
The rotor gets stuck after a long stop.
Cause: If the pump hums but does not rotate, the shaft may be blocked by scale or sludge.
04
Water leaks in the pump body.
Cause: Check the seals and connection nuts.
05
The boiler locks out due to lack of circulation.
Cause: Check the pressure of the circuit and that the pump is receiving voltage.

These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.

Technical data

Wolf 4512947

Catalogue reference: 4512947
Uniclima internal SKU: BOM056
Brand: Wolf
Type of part: Wolf
Units in stock: 0 units
Status: Refurbished
Warranty: 1 year
Shipping: Delivery time shown at checkout
Return: 14 days

Part data and available documentation

Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.

Insulation class: F
Nominal pressure: PN6
Indicated temperature: TF95
Degree of protection: IP44
Condenser: 2.6 µF
Power supply: 230 V~; frequency: 50 Hz
Level I: 0.21 A; 44 W
Level II: 0.30 A; 65 W
Level III: 0.40 A; 87 W
Marked type: RSL15/6.7 HE-3 C Ku
Marked number: 4512947
Barcode number: 201511210910839602
Additional markings: 1191518; 11W09
Marking of the plastic subcomponent: PA66-GF30
Marked origin: Made in EU
Verified data — Pump: Wilo RSL15/6.7 HE-3 C Ku
Verified data — Speed I: 44 W · 0.21 A
Verified data — Speed II: 65 W · 0.30 A
Verified data — Speed III: 87 W · 0.40 A
Verified data — Power supply: 230 V ~ · 50 Hz
Verified data — Condenser: 2.6 µF
Verified data — Protection: IP44 · class F
Verified data — Water temperature: Up to 95 °C (TF95)
Verified data — Nominal pressure: PN6 (6 bar)
Verified data — Origin: Manufactured in the EU ("Made in EU")
Identification — Marked designation: RSL15/6.7 HE-3 C Ku
Identification — Marked code: 4512947
Identification — Marked code: 1191518
Identification — Marked code: 11W09
Technical sheet: Insulation class: F
Nominal pressure: PN6
Technical sheet: Indicated temperature: TF95
Technical sheet: Degree of protection: IP44
Technical sheet: Condenser: 2.6 µF
Technical sheet: Power supply: 230 V~; frequency: 50 Hz
Technical sheet: Level I: 0.21 A; 44 W
Technical sheet: Level II: 0.30 A; 65 W
Technical sheet: Level III: 0.40 A; 87 W
Technical sheet: Marked type: RSL15/6.7 HE-3 C Ku
Technical sheet: marked number: 4512947
Technical sheet: Number under barcode: 201511210910839602
Technical sheet: Additional markings: 1191518; 11W09
Technical sheet: Marking of the plastic subcomponent: PA66-GF30
Technical sheet: Marked origin: Made in EU
Pending applications to verify: In old CGB models, check the PCB and parts list: / they mention a different execution, 2075309 / For RSL Ku/7-50 SC-12. Do not assume that any unit from the CGB family uses 4512947.
Registered equivalents and substitutions: Wolf 8602721 (spare part "Heizkreispumpe 3-stufig") = component 2015112, CGB-20 / CGB-K-20. Join 8602721 with "type RSL 15/6.7", in another, 4512947 with 2015112. Do not confuse with the PWM modulating pump from the same list (8611291 / 2070421) or with the RSL Ku/7-50 SC-12 (2075309) from the old CGB-11/20/24: they are different pumps.

Before purchasing

To confirm: CGB-20 — The official list from Wolf gives 8602721, but it also provides 2075309 for the older models (up to 2005): check the year on the PCB.
To confirm: CGB-11 — Like the CGB-20 (8602721), with the same year discrepancy: check the PCB.
To confirm: CGB-24 — Like the CGB-20 (8602721), with the same year discrepancy: check the PCB.
To confirm: CGB-K-24 — It is referenced with 8602721 (official Wolf list); it also provides 2075309 as a substitute since 4/2003: 2 clean. Check the year of the PCB.
To confirm: CGS-24/200 — They mention it with the exact model (official Wolf list, a forum with 4512947); this one gives 2075309 as a substitute for 8602721 for CGS 24 kW: 2 clean. Compare the pump on the PCB.
To confirm: CGS-20/160 — They refer to it with the exact model (official list from Wolf, which also lists 2075309 as a substitute); it only says "CGS".
To confirm: CGW-11/100, CGW-20/120, and CGW-24/140 — with the exact model: the official list from Wolf (8602721)
Do not confuse: 2075309 — Wilo for RSL Ku/7-50 SC-12 — Another pump. It is not on the official Wolf list (2021). Registered application for the old CGB-11/20/24 (up to 2005).
Do not confuse: 8611291 (2070421) — Modulating pump (Grundfos UPER 15-60) that the official Wolf list offers in the CGB — Another pump: this one is 3-speed.
Do not confuse: 7040119415 — Code that provides a substitute for 8602721 and links to the technical sheet of 2075309 — Substitute for 8602721; this is not this pump.
Confirmation registered: the Wilo RSL15/6.7 HE-3 C Ku pump, its number 4512947 and its compatibility with the Wolf CGB-K-20. The official Wolf list gives 8602721 for that type for the CGB-K-20 and others; it also links 4512947 with 8602721, and a forum mentions 4512947 in a CGS-24/200. Discrepancy: it lists 2075309 for the old CGB-11/20/24 (up to 2005), which is not mentioned in the Wolf list; it provides the same boilers since 4/2003 for 8602721 and for its replacement 2075309: it does not count as a clean origin.

Frequently Asked Questions

Frequently asked questions: wolf 4512947

Is it compatible with my Wolf CGB-K-20?

Yes. Confirmation registered: this pump, Wilo RSL15/6.7 HE-3 C Ku with the number 4512947, for the Wolf CGB-K-20. The official Wolf list specifies the 3-speed pump 8602721 for that boiler, of the same type. For another boiler, please send us a photo of its control board and the label of your pump from Contact.

What is the relationship between 4512947, 8602721, and 2015112?

4512947 is the Wilo number on the label; it does not appear on the official Wolf list from 2021. 8602721 is the Wolf code for the "Heizkreispumpe 3-stufig Wilo RSL 15/6.7 HE-3 C Ku," the same type as our label, and according to that list, it replaces 2015112. Additionally, just link 4512947 with those codes.

Is it suitable for an old CGB?

Look at the year on the plate. The official Wolf list gives 8602721 for the CGB-11, CGB-20, and CGB-24 from 04/2003 to 02/2017 and does not mention 2075309. However, they provide 2075309 for the older models (up to 2005); it is listed as a substitute since 04/2003. If yours is from those years, please send us a photo of the plate via Contact.

Is it the modulating pump from Wolf?

No. The official Wolf list also offers a modulating one, the 8611291 (Grundfos UPER 15-60, replaces 2070421), in the CGB. It's another pump: this one operates at 3 speeds.

What other Wolf models use 8602721?

de Wolf: CGB-11, CGB-20, CGB-K-20, CGB-24 and CGB-K-24 (04/2003-02/2017), CGS-20/160, CGS-24/200, CGW-11/100, CGW-20/120 and CGW-24/140. For the CGB-K-24 and the CGS-24/200, compare the pump on the PCB: it lists 2075309 as a substitute. This pump has only been confirmed for the CGB-K-20.

How do I identify this pump?

On the motor label: type RSL15/6.7 HE-3 C Ku, no. 4512947 and 44/65/87 W. That type is the one that the official Wolf list matches with 8602721. It is not 2075309 (Wilo Para RSL Ku/7-50 SC-12) nor the modulating 8611291.

What is the reference for this pump?

4512947 · RSL15/6.7 HE-3 C Ku

What does the part include?

The set shown in the photographs of this sheet.

Entrega calculada por destino Delivery time shown at checkout

1-year warranty reviewed and tested

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Wilo pump RSL15/6.7 HE-3 C Ku Wolf – Ref. 4512947