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� -- ._ __ _ _ -__� Guide Specification for Page:10 <br /> York Sunline <br /> REFRIGERANT COMPONENTS f. Unit shall incorporate"AUTO RESET"compressor <br /> Compressors: over temperature, over current protection. <br /> a. Shall be internally protected with internal high- g. Unit shall operate with conventional thermostat <br /> pressure relief and over temperature protection. designs and have a low voltage terminal strip for <br /> b. Shall have internal spring isolation and sound easy hook-up. <br /> muffling to minimize vibration and noise, and be h. Unit control board shall have on-board diagnostics <br /> externally isolated on a dedicated, independent and fault code display. <br /> mounting. i. Standard controls shall include anti-short cycle and <br /> Coils: low voltage protection, and permit cooling operation <br /> down to 0 F. <br /> a. Evaporator coils shall have aluminum plate fins j. Control board shall monitor each refrigerant safety <br /> mechanically bonded to seamless internally switch independently. <br /> enhanced copper tubes with all joints brazed. Special k. Control board shall retain last 5 fault codes in non <br /> Phenolic coating shall be available as a factory volatile memory which will not be lost in the event of a <br /> option. power loss. <br /> b. Evaporator coils shall be of the direct expansion, <br /> draw-thru design. GAS HEATING SECTION <br /> c. Condenser coils shall have aluminum plate fins Shall be designed with induced draft combustion with <br /> mechanically bonded to seamless internally post purge logic, energy saving direct spark ignition, and <br /> enhanced copper tubes with all joints brazed or redundant main gas valve.Venter wheel shall be <br /> Micro-Channel aluminum tube, aluminum fins. constructed of stainless steel for corrosion resistance. <br /> d. Condenser coils shall be of the direct expansion, The heat exchanger shall be of the tubular type, <br /> draw-thru design. constructed of T1-40 aluminized steel for corrosion <br /> resistance and allowing minimum mixed air entering <br /> Refriqerant Circuit and Refriqerant Safetv Components temperature of 25°F. Burners shall be of the inshot type, <br /> shall include: constructed of aluminum coated steel and contain air <br /> mixture adjustments.All gas piping shall enterthe unit <br /> a. Independent fixed-orifice or thermally operated cabinet at a single location through either the side or <br /> expansion devices. curb without any field modifications. Integrated control <br /> b. Filter drier/strainer to eliminate any moisture or boards shall provide timed control of evaporator fan <br /> foreign matter. functioning and burner ignition. Heating section shall be <br /> c. Accessible service gage connections on both suction provided with the following minimum protection. <br /> and liquid lines to charge, evacuate, and measure a. Primary and auxiliary high-temperature limit switches. <br /> refrigerant pressure during any necessary servicing <br /> or troubleshooting,without losing charge. b. Induced draft motor speed sensor. <br /> d. The refrigeration system shall provide at least 15°F of c. Flame roll out switch. <br /> sub-cooling at design conditions. d. Flame proving controls. <br /> Unit Controls: e. If any of the above safety devices trip, a LED(light- <br /> emitting diode) indicator shall flash a diagnostic code <br /> a. Unit shall be complete with self-contained low-voltage that indicates which safety switch has tripped. <br /> control circuit protected by a resettable circuit breaker <br /> on the 24-volt transformer side. NOTE:All 2 Stage Gas Heat, 60%Capacity 1 st Stage, <br /> b. Unit shall incorporate a lockout circuit which provides 40%Capacity 2nd Stage. <br /> reset capability at the space thermostat or base unit, UNIT OPERATING CHARACTERISTICS <br /> should any of the following standard safety devices <br /> trip and shut off compressor. Unit shall be capable of starting and running at 125°F <br /> c. Loss-of-charge/Low-pressure switch. outdoor temperature, exceeding maximum load criteria <br /> of AHRI Standard 210/240. The compressor,with <br /> d. High-pressure switch. standard controls, shall be capable of operation down to <br /> e. Freeze-protection thermostat, evaporator coil. 0°F outdoor temperature. Unit shall be provided with fan <br /> time delay to prevent cold air delivery before heat <br /> exchanger warms up (Gas heat only). <br /> Unitary Sales Tool v1.5.9.0 Infortnation is subject to change without notice.Check local codes. Printed 03/30l2017 <br />