York D1HE/D1HG036 warranty Heating Section, Operating Characteristics, Electrical Requirements

036-21216-003-A-0204

b.Unit shall incorporate a lock-out circuit which pro- vides reset capability at the space thermostat, should any of the following standard safety devices trip and shut off compressor:

I.AUTO RESET - Compressor over temperature, over current.

II.Loss-of-charge/low-pressure switch.

III.Freeze-protection thermostat, evaporator coil.

IV.High-pressure switch.

The lockout protection shall be easily disconnected at the control board, if necessary.

Heating Section:

1.Induced draft combustion with Post purge logic and energy saving direct spark ignition, redundant main gas valve with venter wheel constructed of stainless steel material.

2.The heat exchanger shall be of the tubular type con- structed of a minimum of 18 gage steel coated with a nominal 1.2 mil aluminum-silicone alloy for corrosion resistance. 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 without major unit field modifications.

5.A Integrated control board shall provide timed control of evaporator 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 F ambient outdoor temperature, exceeding maximum load criteria of ARI Standard 210/240.

2.Compressor with standard controls shall be capable of operation 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 air delivery before heat exchanger warms up. (Gas heat only)

Electrical Requirements:

All unit power wiring shall enter unit cabinet at a single fac- tory-pre drilled location and be capable of side or bottom entry without major unit field modifications

Unitary Products Group 25