Welcome to, a non-DIY site and the ultimate Source for HVAC Information & Knowledge Sharing for the industry professional!.By continuing to use the website, you consent to our use of cookies. To learn about our use of cookies and how you can manage your cookie settings, please see our. Cookie Consent We use cookies to improve your website experience.The new style Model number incorporates a 'Series' in. NEW STYLE = A H 0 2 3 - 1 S J K 4 5 - 0 6 6 4 - D N 7. 1 Please contact Daikin Applied with unit model and serial number for part numbers. 10/12 Title Page-Change McQuay to Daikin McQuay and add EnfinityTM. Mcquay Heat Pump Serial Number Nomenclature Water Source Heat Pump Nomenclature Pump Restart Relay Kit deleted.
