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

intake or exhaust pipe length. What is the altitude? 7 Furnace capacity? FIGURE 21 MINIMUM VENT PIPE LENGTHS IMPORTANT Do not use screens or perforated metal in exhaust or intake terminations. Doing so will cause freeze-ups and may block the terminations. *Any approved termination may be added to the minimum length listed. **This gas furnace must have 3” to 2” reducing ell (supplied or field replacement Canadian kit) installed directly into unit flue collar. TABLE 4 506724-01 Issue 1108 Page 17

EXHAUST VENT INTAKE AIR Side View FIGURE 30 DIRECT VENT CONCENTRIC ROOFTOP TERMINATION 71M80, 69M29 or 60L46 (US) 44W92 or 44W93 (Canada) Minimum Above Average Snow Accumulation SHEET METAL STRAP (Clamp and sheet metal strap must be field installed to support the weight of the termination kit.) FLASHING (Not Furnished) CLAMP FIELD.PROVIDED REDUCER MAY BE REQUIRED TO ADAPT LARGER VENT PIPE SIZE TO TERMINATION 1 1/2" (38mm) accelerator provided on 71M80 & 44W92 12” (305mm) INTAKE AIR EXHAUST VENT

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

...your outdoor heating/cooling package unit is a valuable piece of equipment, designed and manufactured by the most modern methods. Proper care of your unit should result in many years of service and comfort. To keep your operating costs low and to eliminate unnecessary service calls, we have provided a few guidelines. These guidelines will help you understand how your heating/cooling unit operates and how to maintain it so you can get years of safe and dependable service. Read all the instruct

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

Turn on clothes dryers and any appliance not connected to the common venting system. Turn on exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers. 4. Following the lighting instructions, place the unit being inspected in operation. Adjust the thermostat so the appliance will operate continuously. 5. Test for spillage at the draft control relief opening after 5 minutes of main burner operation.

IMPORTANT Once the venting system is installed, attach the “Disconnected Vent” warning sticker to a visible area of the plenum near the vent pipe. See Figure 23. The warning sticker is provided in the bag assembly. Order kit 66W04 for additional stickers. WARNING Asphyxiation hazard. The exhaust vent for this furnace must be securely connected to the furnace flue transitiion at all times. Vent Connection Figure 23 Use self drilling sheet metal screws or a mechanical fastener to firmly secure the

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

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