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0 TRME" <br /> Mechanical Specifications <br /> Two field installed kits are offered:CO2 sensor and wiring or CO2 sensor only.The CO2 sensor only <br /> kit should be ordered with factory installed CO2 Sensor wiring.Factory installed CO2 sensor wiring <br /> saves set-up time and ensures proper unit connections for the CO2 sensor. <br /> High Static Drive <br /> The high static drive option shall allowthe standard motorto operate with improved external static <br /> capabilities. <br /> Low Leak Economizer <br /> This accessory meets low leak requirements forASHRAE 90.1, IECC,and CATitle 24 standards (3 <br /> cfm/ft^2@1"wg exterior air,4 cfm/ft^2@1"wg return air).This option allows 100%outdoor air <br /> supply from 0-100% modulating dampers and is standard with barometric relief. It can be paired <br /> with powered exhaust for additional building pressure relief.Available on downflow units only. <br /> Manual Outside Air Damper <br /> This rain hood and screen shall provide up to 50 percent outside air. <br /> Motorized Outside Air Damper <br /> Manually set outdoor air dampers shall provide up to 50 percent outside air.Once set,outdoor air <br /> dampers shall open to set position when indoorfan starts.The damper shall close to the full closed <br /> position when indoor fan shuts down. <br /> Powered Exhaust <br /> The powered exhaust,available for 6-10 ton units,shall provide exhaust of return air,when using <br /> an economizer,to maintain better building pressurization. <br /> Programmable Night Setback <br /> Auto or manual changeover with seven-day programming. Keyboard selection of Heat,Cool,Fan, <br /> Auto, or On.All programmable sensors have System On, Heat, Cool, Service LED/indicators as <br /> standard.Night Setback Sensors have one(1)Occupied,one(1)Un-occupied,and one(1)Override <br /> program per day. <br /> Remote Potentiometer <br /> The minimum position setting of the economizer shall be adjusted with this accessory. <br /> Roof Curb <br /> The roof curb shall be designed to mate with the unit's downflow supply and return and provide <br /> support and a water tight installation when installed properly.The roof curb design shall allow <br /> field-fabricated rectangular supply/return ductworkto be connected directlyto the curb.Curb shall <br /> be shipped knocked down for field assembly and shall include wood nailer strips. <br /> Thermostat <br /> Two stage heating and cooling operation or one stage heating and cooling shall be available in <br /> either manual or automatic changeover.Automatic programmable electronic with night set back <br /> shall also be available. <br /> Ventilation Override Accessory <br /> With the Ventilation Override Accessory installed,the unit can be set to transition up to 3 different <br /> pre-programmed sequences for Smoke Purge,Pressurization,and Exhaust.The transition occurs <br /> when a binary input on the RTOM is closed (shorted).This would typically be a hard wired relay <br /> output from a smoke detector or fire control panel.The ventilation override accessory shall be <br /> available as field installed. <br /> PKGP-PRC013K-EN 85 <br />