When you see this symbol on labels or in manuals, be alert to the potential for personal injury or death. CAUTION WARNING As with any mechanical equipment, personal injury can result from contact with sharp sheet metal edges. Be careful when you handle this equipment. Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a licensed professional installer (or equivalent), serv

For assistance or additional information, consult a qualified installer or service agency. WARNING Installation and servicing of air conditioning equipment can be hazardous due to internal refrigerant pressure and live electrical components. Only trained and qualified service personnel should install or service this equipment. Installation and service performed by unqualified persons can result in property damage, personal injury, or death. WARNING If this unit is to be installed in a mobile or

After the main burner has operated for 5 minutes, test for leaks of flue gases at the draft hood relief opening. Use the flame of a match or candle. After determining that each appliance connected to the common venting system is venting properly, (step 3) return all doors, windows, exhaust fans, fireplace dampers, and any other gas burning appliances to their previous mode of operation. If a venting problem is found during any of the preceding tests, the common venting system must be modified to

9. After determining that each appliance remaining connected to the common venting system properly vents when tested as indicated in step 3, return doors, windows, exhaust fans, fireplace dampers and any other gas burning appliance to their previous condition of use. 506724-01 Issue 1108 Page 45 of 57 Page 46 of 57 Issue 1108 506724-01 Other Unit Adjustments Primary Limit The primary limit is located on the heating compartment vestibule panel. This limit is factory set and requires no adjustment

WARRANTY PROCEDURE When service or warranty parts are required: 1. Call a local licensed service dealer or contractor. 2. If the installing dealer is unable to provide warranty service, check online at 3. Be prepared to furnish the following information: a. complete model and serial number; b. proof of required periodic maintenance, installation date and location; and c. an accurate description of the problem. WARRANTY LIMITATIONS 1. This Limited Warranty is void if the covered equipment is remo

For assistance or additional information, consult a qualified installer, service agency, or the gas supplier. WARNING Do not store combustible materials, including gasoline and other flammable vapors and liquids, near the furnace, vent pipe, or warm air ducts. Such actions could cause property damage, personal injury, or death. WARNING Never use a flame to check for gas leaks. Explosion causing injury or death may occur. WARNING If this unit is to be installed in a mobile or manufactured home ap

Use copper conductor only, min. 75°C wire. WARNING - Electric shock hazard. Unit mustbe grounded in accordance with national andlocal codes. Line voltage field installed. W1 & W2 can be used to stage electric heataccessory on 15 & 20kW models. 5, 7.5, & 10kW heater accessories functionoff W1 only. Note: Because the pressure switches are monitored only when "Y1" (Input) is active, thecode for pressure switch open will not be seen when "Y1" is off. Instead, the“Normal Operation" or “Anti-Short Cyc

When inspection reveals that an existing chimney is not safe for the intended purpose, it shall be rebuilt to conform to nationally recognized standards, lined or relined with suitable materials, or replaced with a gas vent or chimney suitable for venting. The chimney passageway must be checked periodically to ensure that it is clear and free of obstructions. Do not install a manual damper, barometric draft regulator, or flue restrictor between the furnace and the chimney. Never connect a Catego

Tighten to 20 - 30 ft. lbs. Use backup wrench on all wrench flats. Overtightening will crush the teflon seal and may cause a leak. 506469-01 Issue 1008 Page 9 of 24 3. Connect the external equalizer line to the equalizer port on the suction line and tighten to 8 ft.lbs. 4. Strap the superheat sensing bulb to the suction header. If installing an expansion valve on an indoor coil that previously used a fixed orifice, be sure to remove the existing fixed orifice. Failure to remove a fixed orifice w

Cement should be applied lightly but uniformly to inside of socket. Take care to keep excess cement out of socket. Apply second coat to end of pipe. 7. Immediately after applying last coat of cement to pipe, and while both inside socket surface and end of pipe are wet with cement, forcefully insert end of pipe into socket until it bottoms out. Turn PVC pipe 1/4 turn during assembly (but not after pipe is fully inserted) to distribute cement evenly. Do not turn ABS or cellular core pipe. NOTE: As