Refurbished Chaffoteaux Expansion vessels

Expansion Vessel Chaffoteaux Calydra Comfort 28 FF N Ref. 61400202

If you notice that the pressure of your boiler fluctuates sharply or that the safety valve is leaking, a technical diagnosis must confirm whether you need to replace the Vaso Expansion Chaffoteaux Calydra Comfort 28 FF N, reference 61400202. This part is responsible for absorbing the increase in water volume when heated, preventing problems in the system. It is compatible with several models from the Chaffoteaux range, such as the Calydra Comfort 28 FF N and the Calydra Comfort 28 CF N, among others. A technician must confirm through diagnosis whether it is necessary to replace it when it shows faults that affect the system pressure.

Type of part: Expansion vessels
Status: Refurbished
Catalogue reference: 61400202
Warranty: 1 year

VAT included Stock · 7 units

Compatibility

Chaffoteaux boilers compatible with reference 61400202

Expansion vessel with reference 61400202. Four confirmed compatibilities: Calydra Comfort 28 FF N and Calydra Comfort 28 CF N.

Verified compatibility

Boiler model	Family	Verification
Chaffoteaux Calydra Comfort 28 FF N	Chaffoteaux	Verified
Chaffoteaux Calydra Comfort 28 CF N	Chaffoteaux	Verified
Chaffoteaux Calydra Comfort 28 FF	Chaffoteaux	Verified
Chaffoteaux Calydra Comfort 28 CF	Chaffoteaux	Verified

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 the ref. 61400202 is the part for your boiler

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

Find the reference printed on the installed part and check whether it matches the catalogue reference 61400202. If it is not visible, do not identify the part from its shape alone.
Check the full boiler model on its data plate and look for it in the model associations on this page.
Compare the connections and physical body with the original part before installation.
If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.

Diagnosis and fault codes

Symptoms that require diagnosis in the expansion vessel 61400202

The expansion vessel absorbs the expansion of water when heated. These are the typical symptoms and what to do:

Common symptoms and faults

01
The boiler shows an error or locks out due to low pressure more than once a month.
Cause: The expansion vessel is not cushioning properly, which causes the system to lose pressure more frequently and reach the minimum that locks the boiler.
Before changing the expansion vessel, check for any visible leaks in the radiators, bleed valves, or the filling valve.
02
There are banging noises in the pipes when turning on the hot water or starting the heating.
Cause: The expansion vessel does not absorb pressure changes, which causes them to be transmitted as shocks throughout the system.
Check that the thermostatic valves and the bleed valves are not blocked before blaming the vessel.
03
The pressure gauge jumps up suddenly as soon as the boiler starts and then slowly drops.
Cause: This indicates that the expansion vessel does not have the correct pre-charge: all the initial expansion translates into pressure because there is no air to absorb it.
Measure the pressure right at startup and again after ten minutes; a marked rise and fall indicates a problem with the expansion vessel.
04
The tank feels heavier than usual when holding or moving it.
Cause: A glass of water due to a membrane rupture weighs more than one that contains air.
If you can access the Schrader valve, press it with the circuit under no pressure: if water comes out, confirm the suspicion before purchasing.

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

Expansion vessel data Chaffoteaux 61400202

Catalogue reference: 61400202
Uniclima internal SKU: VECC28FF
Brand: Chaffoteaux
Type of part: Expansion vessels
Units in stock: 7 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.

maximum pressure: 3 bar

Frequently asked questions

Frequently asked questions about the expansion vessel 61400202

Is this expansion vessel Ref. 61400202 compatible with the Calydra Comfort 28 FF N?

Yes, the expansion vessel Ref. 61400202 is compatible with the Calydra Comfort 28 FF N.

How many boiler models are compatible with this expansion vessel?

This expansion vessel is compatible with a total of 4 models from the Chaffoteaux range.

What symptoms indicate that I need to replace the expansion vessel?

The technical diagnosis must confirm whether it is necessary to replace it when it loses the precharge and the boiler starts to frequently trigger the safety valve.

What is the reference for this expansion vessel?

VECC28FF is Uniclima’s internal SKU for locating this listing. To confirm compatibility, check the manufacturer’s reference and the exact appliance model.

Is this expansion vessel suitable for the Calydra Comfort 28 CF N?

Yes, the expansion vessel Ref. 61400202 is suitable for the Calydra Comfort 28 CF N.

Delivery calculated by destination Delivery time shown at checkout

1-year warranty inspected and tested

14-day return uninstalled parts

Technical support we verify your model

Expansion Vessel Chaffoteaux Calydra Comfort 28 FF N Ref. 61400202