On this page you will find answers to frequently asked questions about LK Armatur and our products. You can sort these by going to the All categories menu and clicking on a question or by using the free search function under FAQs. If you are unable to find the answer to your question, please email us at faq@lkarmatur.se and we promise to get back to you as soon as possible.
PLEASE NOTE: These pages are currently under construction so please be patient and do not hesitate to email us at faq@lkarmatur.se if you are currently unable to find the answer you need.
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Is it possible to remove the shunt action on an LK SmartComfort?
- Yes, by holding down the menu button and minus button for about 5 seconds, shunt action is turned off.
- To activate pump action, hold down the menu button and the plus button for about 5 seconds
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I have an LK 550 AquaMix on which I have replaced the insert. I now have insufficient heat: is there anything I can do about this?
You can increase the maximum temperature. You can do this as follows:
- Turn the knob counterclockwise to (+).
- Loosen the screw and put the knob to one side.
- Then turn the knob in the "air" clockwise towards (–). This adjustment can be made incrementally, with a ¼ turn corresponding to approx. 7°C.
- Replace the knob and feel for when it grips the cog.
- Fasten the screw and then turn the knob to max (+). Maximum calibration to increase the temperature is a ½ turn
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Do you have an order question?
If you want to e-mail your order question you should send it to info@lkarmatur.se
If you would rather call us, you can do so on phone: +46 42 16 92 76.
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What should I do when I need a product photo?
You can download product photos from our website.
- Search for the product you require.
- Right-click on the image.
- Select Save image as and choose where to store the image.
- You now have a functioning digital image.
If you need photographs in print quality or other formats, please contact our Marketing Department.
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Where can I download your logotype?
Our logotype is available under Support/marketing material on our website. The LK logotype is available in various formats. If you need images in a different quality or other formats, please contact our Marketing Department.
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Do you sell directly to installers?
No, we don’t: please contact a wholesaler to purchase LK Armatur products.
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Do you sell directly to consumers?
No, unfortunately we are unable to do so. Please speak to your local installer.
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How do I clean the filter on a LK 520 MultiFill?
You can do so easily by following the steps below.
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What should I do if I have misplaced the air vent to my LK 550 AquaMix?
The air vent can be ordered directly from us as a spare part, article number: 187224
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The warm water from my tap is not the correct temperature: what should I do?
The temperature field can be adjusted by following the instructions in the product data sheet for the LK 550 AquaMix and LK 548 AquaKit. The product data sheet can be downloaded from our website under each product.
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Why is my safety valve leaking?
Is it OK to have water coming out of the wastepipe? When water is heated, it expands and the increased volume needs to go somewhere, meaning that your safety valve will drip.
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My mixing valve rotates in different directions: is there something wrong?
No, this is quite normal. The mixing valve will rotate randomly between ports A and B. Rotation takes place at an angle of 60°.
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- LK 830 ThermoMix® B
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- LK 841 ThermoMix® 2.0
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- LK 851 ThermoMix® H
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- LK 525 MultiZone 3R
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Unfortunately, I threw away the insulation for my LK 521 MultiFill: can I buy this as a spare part?
Yes, this is available as a spare part for size DN 25 and DN32. You can find the article number under Accessories on the product page.
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Can I replace my water meter console with a new version without adaption?
When replacing older models of the LK 580, you will need to supplement the new water meter coupling with a sleeve, article number: 016019
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Which expansion vessel should I buy?
If your expansion vessel connection is located on the long side, you should choose expansion vessel article number: 064010.
If your expansion vessel connection is located on the short side, you should choose expansion vessel article number: 5523321
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My LK SmartComfort says that the outdoor temperature sensor is missing but, as far as I know, my product doesn’t need one?
Presumably you are not receiving a signal from your room unit; check your connection.
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Is the LK SmartComfort compatible with a mixing valve from another manufacturer?
Yes, we provide mounting kits for other models, see Mounting kits on our website.
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How do I contact customer services?
You can find all of our important contact details on our website under Support.
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If I misplace my instrument manual, how can I get hold of a new one?
You can download an instruction from our website. Search for the correct product page and click on Downloads. If a download is missing, please contact Customer Support at kunsupport@lkarmatur.se
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Where can I find technical documentation for a product?
Do the following:
- Search for the correct product page on the website.
- Click on the tab Datasheet. You can then save or print a PDF containing technical data.
The same information is available in our product catalogue and in product brochures. All catalogues and brochures are also available for download from our website.
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What does HVAC stand for?
Heating, Ventilation, Air Conditioning.
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What is the Kvs value?
Kvs is a measurement of a valve’s flow capacity, calculated as follows: Add a pressure drop of 1 bar to a valve and allow it to run for one hour. The accumulated flow through the valve in cubic metres is equal to the Kvs value. Cv is the US unit and states the flow in gallons per minute at a pressure drop of 1 psi. A factor of 1.16 is used to convert from Kv to Cv (1.16 x Kv = Cv).
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What is the difference between sanitary water and heating water?
Sanitary water is tap water, while heating water is used in your heating system. It is important to ensure that these are never mixed but are kept in separate circuits.
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Do you have this article in stock?
Please contact Customer Services for a delivery date.
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How much does this article cost?
Contact your local reseller for price and delivery information.
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I want to replace my 12 litre expansion vessel: which should I choose?
If your expansion vessel connection is located on the long side, you should choose expansion vessel article number: 064010.
If your expansion vessel connection is located on the short side, you should choose expansion vessel article number: 5523321.
If you are unsure, please contact Customer Support at kundsupport@lkarmatur.se
If you would prefer to speak to us in person, you can find our Customer Support telephone number on our website under Support.
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Is it possible to upgrade LK 110 to LK 130 by purchasing and adding the indoor temperature controller? Or do I need to purchase the whole LK 130 set?
Yes it is possible to just add an indoor controller to your LK 110, and your SmartComfort will then have become a LK 130 instead.
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Why can’t I find the right spare part (sensor body) for my loading unit?
Probably because you have an older product manufactured before 2010 under the name Acaso. The Acaso loading unit always stated the opening temperature, while on current loading units we always state the return temperature. You should therefore check the attached conversion table to find the correct spare part. You can find further information in our Spare Parts and Accessories brochure on page 21, which you can find under Support/Brochures at lkarmatur.se.
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I have an RP 12-litre expansion vessel with the port on the long side but I can’t find this product on your website.
We do have that product, it is article no. 064010
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Can I purchase spare parts for an Acaso 3-way valve in cast iron?
Yes, we have both a liner with art.no. 180125 and a gasket set with art. no.180126. You can find further information in our Spare Parts and Accessories brochure, which you can find under Support/Brochures on our website.
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Is it possible to replace a Honeywell mixing valve with an LK 525 MultiZone with actuator?
Is it possible to replace a Honeywell mixing valve with an LK 525 MultiZone with actuator?
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Do all LK 810 ThermoMat spare parts fit the entire range?
No, they do not. You can find the correct spare part in our Spare Parts and Accessories brochure, which you can find under Support/Brochures on our website.
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Can you use LK's safety valves with steam?
None of LK's safety valves are designed to be used with steam.
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What is the running time of a SmartComfort?
All our SmartComfort units rotate 90 degrees in 17 seconds.
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Can I buy the air-vent for LK 560 AquaKit as a spare part?
Yes, it can be ordered with article number 187306.
You can find it under LK 560AquaKit and Accessories and spare parts on our website.
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Can you change the insert on the mixing valve LK 550 AquaMix?
Yes, spare part for the insert can be ordered at RSK 4920723. Alternatively, if you want to replace the entire valve, it can be ordered at RSK 4920708.
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