2023-088-E-AMS-Siemens Industry-ES Trane Units HVAC Controls to tie into existing controls

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For the Trane unit Tie-in: •Verify current end devices that are tied-in and communicating and tie-in all end devices currently not tied into the existing TEC. (condensate pump leak detectors and potentially a supply temp sensors). Assumes all components from initial base project are present and functional. •Utilize existing sensor on the 2nd floor to control the three Trane units (all 3 units are for redundancy serving the same spaces.) Main HVAC is from a Mitsubishi VRF system (already set-up) •Verify the graphics/modify if needed and provide the programming changes as required to run when temperature raises/drops below space conditions (provided by OC) to determine the VRF system is not meeting required space conditions. For the Generator Tie in: •Provide electrical work to run wiring from existing Siemens main controller to the ATS. (located on outside wall, alarm point to be identified by customer provided ATS schematic) This is for picking up an alarm point signaling the generator is active. If this point is located at the generator, Siemens will utilize existing conduit from ATS to generator (a new underground or overhead conduit from ATS to generator is not included in this scope of work) •Provide and install a CO2 sensor in room 103 to match the sensor on the 2nd Floor. Tie-in to main Siemens Controller.New sensor will monitor the space CO2 levels. •Provide and Install a point TX-IO module to pick up the Generator/ATS points and extra CO2 sensor •Provide programming based on the above sequence (utilizing the previous integration completed to the DOAS unit) and programming for when the CO2 levels start to elevate, turning the DOAS back on. •On-site Functional Testing of the Sequence of Operation Page 5 of 10 DocuSign Envelope ID: 435C541D-48A4-4A13-BEB5-59A56EAFCD90