York D1HE/D1HG036 Technical Manual
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Contents
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036-21216-003-A-0204Unitary Products Group 25b. Unit shall incorporate a lock-out circuit which pro-vides reset capability at the space thermostat,should any of the following standard safety devicestrip and shut off compressor:I.AUTO RESET - Compressor over temperature, overcurrent.II.Loss-of-charge/low-pressure switch.III.Freeze-protection thermostat, evaporator coil.IV.High-pressure switch.The lockout protection shall be easily disconnected atthe control board, if necessary.Heating Section:1. Induced draft combustion with Post purge logic andenergy saving direct spark ignition, redundant main gasvalve with venter wheel constructed of stainless steelmaterial.2. The heat exchanger shall be of the tubular type con-structed of a minimum of 18 gage steel coated with anominal 1.2 mil aluminum-silicone alloy for corrosionresistance. Warranty shall be of 10-years.3. Burners shall be of the in-shot type constructed of alumi-num coated steel and contain air mixture adjustments.4. All gas piping shall enter the unit cabinet at a single loca-tion, and be capable of side or bottom entry withoutmajor unit field modifications.5. A Integrated control board shall provide timed control ofevaporator fan functioning and burner ignition. An LED(light-emitting diode) shall provide diagnostic informa-tion.6. Heating section shall be provided with the following mini-mum protection:a. High-temperature limit switch.b. Induced draft motor speed sensor.c. Flame roll out switch (automatic reset).d. Flame proving controls.Operating Characteristics:1. Unit shall be capable of starting and running at 125 Fambient outdoor temperature, exceeding maximum loadcriteria of ARI Standard 210/240.2. Compressor with standard controls shall be capable ofoperation down to 45 F ambient outdoor temperature.Accessory low ambient kit operated to 0 F.3. Unit provided with fan time delay to prevent cold airdelivery before heat exchanger warms up. (Gas heatonly)Electrical Requirements:All unit power wiring shall enter unit cabinet at a single fac-tory-pre drilled location and be capable of side or bottomentry without major unit field modifications |
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