Privacy Policy
EZYHVAC Co., Ltd. (“the company”), as data controller under the Personal Data Protection Act B.E. 2562 (2019) of Thailand
Issued 19 August 2026 · Updated 15 September 2026 (added section 8, calculation tools, and section 9, company pages) · Updated 24 September 2026 (added the contact form to sections 1 and 3). The Thai version prevails in case of any inconsistency · Updated when the training system opened (amended section 2 and added section 10, members and training) · Updated 15 October 2026 (added the ezyRTS Desktop software section).
1. Data we collect
(a) Order data: full name, delivery address, telephone number, email (if given). (b) Proof of payment: the transfer slip image, which may show the payer's account name and part of the account number. (c) Receipt data: name and tax ID (if requested). (d) Review text that you publish yourself. (e) Messages sent through the contact form: name, telephone number and/or email, subject and message.
2. Purpose
To process your order, verify payment, deliver the goods, issue receipts and contact you about your order. Data of training members is used for the purposes in section 10. Beyond this, the company does not use your data for marketing without consent.
3. Retention
Transfer slip images are kept for 2 years from the transaction date and then deleted automatically. Order data is kept as long as required by applicable law. Website visit statistics are kept in a form that cannot identify you (IP addresses are not stored directly) and deleted within 2 days. Contact-form messages are delivered to the company's email; the system keeps only the name, subject and message for up to 90 days to alert staff, then deletes them automatically (telephone numbers and emails are not stored in the system).
4. Disclosure
The company discloses your name, address and telephone number to the delivery provider only as needed for delivery. We do not sell, exchange or pass your data to anyone else.
5. Storage on your device
The website stores your latest order number in your browser so you can track its status easily. This stays on your device and can be removed by clearing your browser data.
6. Security
Slip images are accessible only to authenticated administrators, and the company limits data access to what is needed for the work.
7. Your rights
You may request access, a copy, correction or deletion of your data, or object to its processing, through the contact channels at the bottom of the website. The company will respond within the period required by law.
8. Calculation tools
The website offers engineering calculation tools without registration. (a) The visitor counter sends a request to a Google service (Google Apps Script) each time a tool page is opened, only to count visits; the company receives no personally identifying data from this service. (b) Weather data files you upload in the international energy tool are stored with their file name so they can be reused in calculations; please do not include personal data in the file or file name. (c) Images uploaded to the image-based calculator are processed and the result returned immediately; they are not stored. (d) Values you enter for calculation are not linked to your identity, and the selected language is kept only in the page address, not on your device. (e) Tool pages load fonts from Google Fonts, so Google may receive your IP address under Google's privacy policy.
9. Company pages and external links
The company information pages (Home, About, Services, Works, Contact) have no forms, collect no personal data from visitors and use no tracking or advertising cookies. The phone, email, Facebook, Google Maps and LINE buttons take you to external services with their own privacy policies. The company receives only what you choose to send, such as the content of an email or message you send us.
10. Members and training
(a) Data collected when you register as a member: username, full name, email, telephone number and the date and time you gave consent. Passwords are stored with one-way encryption that even administrators cannot read. (b) Data collected when you register for training: LINE ID (if given), Council of Engineers membership number (if any), proof of payment, receipt data (if requested) and exam results. (c) Purpose: to verify your identity when you log in, manage registration and payment, issue receipts and certificates, and email members about new training courses, which you may ask to stop at any time through the contact channels at the bottom of the website. (d) Disclosure: your full name, Council of Engineers membership number and exam results are disclosed to the Faculty of Engineering, University of Phayao (the CPD accrediting body) only as needed to certify professional development units. (e) Retention: member data is kept for as long as you are a member; after an account is closed, training history and proof of payment are kept as long as required by law, and slip images are deleted after 2 years as in section 3. (f) Cookies: when you log in, the website uses a necessary cookie to remember your login (it expires after 30 days without use); it is not used for tracking or advertising.
11. ezyRTS Desktop software
When you try or buy a licence for the ezyRTS Desktop software: (a) Data collected: your name, email and website account; your computer's machine code, a value the software derives from the Windows machine identifier that cannot be reversed; your package, expiry date and payment history; tax invoice data (name, address, tax ID, head office/branch) if you request it; and the brand and last 4 digits of the card on file, together with a card reference code generated by Omise (used to prevent repeated trials; it cannot be turned back into the card number). (b) Purpose: to issue and send licences, take payment, issue receipts/tax invoices, email reminders before expiry, move licences on request and prevent repeated use of the free trial. (c) Card data: you enter card details directly with Omise (Opn Payments); full card numbers never pass through or are stored in the company's systems, and Omise handles them under its own privacy policy. When you remove a card from your account page, the company deletes the card data it holds, except what is needed to prevent repeated trials. (d) The software itself checks the licence on your computer and sends no usage data, work files or IP address back to the company. (e) Disclosure: tax invoice and payment data may be disclosed only to the company's accounting firm and to government authorities as required by law. (f) Retention: licence data is kept for as long as you have an account; payment documents and tax invoices are kept for the period required by accounting and tax law.
12. Contact
EZYHVAC Co., Ltd. via the channels shown at the bottom of the website
13. Changes to this policy
The version most recently published on the website is the version in force.