--- title: ST-4500 Make Up Air Heater --- [Skip to content](https://www.hybridlightsolutions.com/st4500support#main-content) # Product Support Portal #### The tools you need to manage HLS equipment. Thanks for purchasing a Hybrid Light Solutions product; we take product support seriously and know that you need the details to manage your equipment fleet. We work to provide resources related to after-sale product support here.  To contact our support team, please email: [support@hybridlightsolutions.com](mailto:support@hybridlightsolutions.com) ### Operating Manual ![ST-4500 Manual](https://www.hybridlightsolutions.com/hs-fs/hubfs/Screenshot%202023-07-05%20at%203.00.58%20PM.png?width=155&height=200&name=Screenshot%202023-07-05%20at%203.00.58%20PM.png) [ Download ](https://www.hybridlightsolutions.com/hubfs/ST4500MA%20OPERATIONS%20MANUAL-1.pdf?hsLang=en) ### Wiring Diagram ![ST4500](https://www.hybridlightsolutions.com/hs-fs/hubfs/ST4500.png?width=308&height=200&name=ST4500.png) [ Download ](https://www.hybridlightsolutions.com/hubfs/ST-4500_Switchable_6132023.pdf?hsLang=en) ### Burner Management System ![LME Manual](https://www.hybridlightsolutions.com/hs-fs/hubfs/Screenshot%202023-07-05%20at%203.03.03%20PM.png?width=155&height=200&name=Screenshot%202023-07-05%20at%203.03.03%20PM.png) [ Download ](https://www.hybridlightsolutions.com/hubfs/LME7%20Technical%20Instructions%20LME-1000-1.pdf?hsLang=en) ### DFC+ Controller ![Screenshot 2023-09-25 at 8.15.05 AM](https://www.hybridlightsolutions.com/hs-fs/hubfs/Screenshot%202023-09-25%20at%208.15.05%20AM.png?width=155&height=202&name=Screenshot%202023-09-25%20at%208.15.05%20AM.png)   [ Download ](https://www.hybridlightsolutions.com/hubfs/DOC_T0006_12.27.2017_DFCP_Original_O_M-1.pdf?hsLang=en) ## Hybrid Light Solutions Product Support Contact us for additional support or details.  [ Contact Us ](https://www.hybridlightsolutions.com/support@hybridlightsolutions.com?hsLang=en)