Note: The links go to the manufacturers' official sites and are external links; the relevant manufacturer is responsible for their content. We added the links after checking that they open, but manufacturers may change their sites. Some pages are in English, German or Italian, or may require a login. Brand names belong to the respective companies; unless otherwise stated, YOİ Mühendislik is an independent technical service for these brands.
Air conditioner, VRF and split brands
Chiller, precision air conditioner and air handling unit brands
Heating, boiler and heat pump brands
| Brand | Official links | Note |
|---|---|---|
| Vaillant | Vaillant Solution Center | Phone, WhatsApp and video support; no manual download page |
| Viessmann | Manual center (ViBooks) Downloads and brochures | Türkiye site |
| Bosch | Bosch boiler fault codes and solutions | Boiler fault codes; no manual download page found |
| Buderus | Buderus Türkiye fault codes and solutions Customer manual | Documents are on product pages |
| Baymak | User comfort guide (guide articles) | Guide articles, not PDF manuals |
| Demirdöküm | Planning documents (installation handbook, first start-up) | Technical handbooks |
| Ariston | Ariston Türkiye documents | Page content may load late |
| Stiebel Eltron | User manual search (global) Download center (global) | Search sometimes returns an error |
| Wolf | Professional download center Heating manuals | Global/Germany site |
Compressor brands
| Brand | Official links | Note |
|---|---|---|
| Bitzer | BITZER Service Center Products and software redirect | Technical documents are provided through software and a portal |
| Refcomp | Software and services | No separate manual page |
| Frascold | Document search (manual, datasheet, installation) Frascold home page | Italian interface |
| Dorin | Download center (instructions, technical bulletin, catalog) | |
| Copeland | Online product information (bulletin, manual, cross reference) | |
| Carlyle (Carrier) | Carlyle literature Carlyle products and support | |
| Trane compressors | Reciprocating compressor service bulletins | |
| Daikin Applied screw | Daikin Applied home page (IOM, catalog) | |
| Mycom (Mayekawa) | MYCOM screw compressor Mayekawa support | No downloadable manual; selection software through a representative |
| Fusheng | E-catalog (via form) Technical articles | |
| Danfoss | Commercial compressor documentation Service and support documentation | Some content may require login |
| Danfoss drives (VLT) | Drive technical documentation |
Control devices
| Brand | Official links | Note |
|---|---|---|
| Dixell / Copeland controllers | Dixell user manuals Copeland Dixell brand page | Search by model name |
| Carel | Product manuals Carel home page | |
| Eliwell | Eliwell Expert Center Eliwell home page | Some downloads require registration |
Third-party sources (unofficial)
Please note: Since we could not find an official manual page for these brands, we link to an independent manual site (ManualsLib) that lists user-uploaded manuals. This site is not affiliated with the manufacturer; the currency and accuracy of the manuals are not guaranteed. If possible, check the model and version against the equipment nameplate.
Brands with no manual link: our own pages
For the following brands, we could verify neither an official nor a reliable third-party manual page. Instead, you can go to each brand's own service pages on our site; you can send a photo of the equipment nameplate and we can look for the document together.
To find the manual quickly
- Note the model and serial number from the equipment nameplate
- Search for the model number of the outdoor and indoor unit separately
- Also check the model name of the remote control and control panel
- For fault codes, also see our fault codes page
- For technical terms, see the glossary of terms
- For compressor information, see compressor brands
Frequently asked questions
Why are the manuals on the manufacturer's site and not on yours?
User and service manuals are copyrighted documents that belong to the manufacturers. For the current and correct version, we direct you to the manufacturer's official page.
I cannot find the manual for my equipment, what should I do?
Note the model and serial number on the equipment nameplate and search for it on the manufacturer's site. If you cannot find it, send us a photo of the nameplate and we will look together.
Are the links up to date?
We added the links after checking that they open; manufacturers may change their sites over time. If you see a link that does not open, let us know.
Can I perform the procedures in the manual myself?
Work on refrigerant, electrical and pressurized circuits requires an expert. The user manual is for information only; you can contact us for service work.