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H. Additional controls functions: • <br /> 1. Time guard circuit to prevent compressor short cycling as <br /> result of rapid change in thermostat setting. Automatirally ' <br /> prevent compressor restart at least 5 minutes after � <br /> shutdown. <br /> 2. Thermostat assembl to provide staaed heatina and coolina I <br /> Y Y b b .'77 <br /> with automatic changeover and fan control. Standard� <br /> subbase shall include "compressor malfunction light", <br /> desi�ned to illuminate if compressor lockout is activa'ted. <br /> 3. Remote control panel to provide central unit control oi' <br /> heating, cooling, indoor fan and outdoor air damper. Panel <br /> shall contain indicator lights for up to 3 unit functions�. <br /> 4. Emergency heat control consisting of emergency heat c•elay <br /> and emergency heat thermostat subbase (with warninb <br /> light). Control sha11 allow for manual bypass of compressor <br /> and outdoor thermostats if compressor becomes <br /> inoperative, or for service. Subbase light shall illuminate if <br /> compressor lock-out is activated. S <br /> 5. Outdoor air thermostats for staging of the electric resistance <br /> heat according to outdoor temperature. Wire thermosta:ts <br /> into electric heater contactors and provide adjustable sht <br /> point for economical resistance heat staging. <br /> 6. Safety controls shall include factory furnished manual reset <br /> firestats. <br /> 7. Each unit shall have factory furnished night-setback and <br /> time clock controls. Time clocks shall be 7-day with 2�- <br /> hour spring reserve.Night setback thermostat shall hav'e <br /> setting down to 60 degrees F winter and 85 de�ees F <br /> summer.Night setback controls shall have a timer manual <br /> override switch. <br /> I. Outdoor coil defrost control system shall be incorporated into �ase <br /> unit to prevent frost accumulation during heat cycle. Defrost cycle <br /> shall function on basis of time and coil temperature. 90-minute <br /> timer shall actuate defrost mode only if coil temperature is low� <br /> enou;h to indicate heavy frost condition. Defrost sha11 have • <br /> positive termination time of a m�ximum of 10 minutes or wheri <br /> ICT 99184 <br /> SECTION 15775 - 4 <br />