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Mechanical Specifications <br />Single Source Power Entry <br />This accessory when used with electric heat accessory <br />shall allow single source power connection to unit and <br />heater combination. Single source power entry kits <br />shall have specific matching heater(s). Kit shall include <br />high voltage terminal blocks, fuse blocks and fuses, <br />cut -to -length interconnecting wiring, and junction box <br />(if required) to provide power sources with fuse <br />protection as required for both the unit and accessory <br />heater. Kit components shall install within the heater <br />cabinet in the heater access section. Single source <br />branch power circuit shall be protected and wired in <br />accordance with local codes. <br />Fully Modulating Economizer <br />This accessory shall be field installed and be composed <br />of the following items: 0-100 % fresh air damper, <br />damper drive motor, fixed dry bulb enthalpy control, <br />and low voltage pigtails for electrical connections. <br />Solid state enthalpy or differential enthalpy control is <br />optional. Economizer operations shall be controlled by <br />the preset position of the enthalpy control. A <br />barometric relief damper shall be standard with the <br />economizer and provide a pressure operated damper <br />that shall be gravity closing and prohibit entrance of <br />outside air on equipment "off' cycle. Economizer <br />requires BAYRLAY004A relay kit to interface the <br />economizer to the heat pump. <br />Manual Outside Air Dampers <br />Rain hood and screen shall be field installed. Suitable <br />for up to 25% outside air. <br />Start Kit <br />Extra compressor starting capacity for single phase <br />equipment. <br />Control Options <br />Standard Indoor Thermostats <br />Two stage heating/cooling or one stage heating/ <br />cooling thermostats shall be available in either manual <br />or automatic changeover. <br />Programmable Electronic Night Setting Thermostat <br />Programmable electronic thermostat shall provide <br />heating setback and cooling setup with 7—day <br />programming capability. 1 H/1C or 2H/2C models <br />available. <br />14 4YCC4048A-SUB-1 F-E N <br />