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

Superheat should be determined at Standard ARI test conditions of 82°F outdoor and 80°F indoor dry bulb/67°F wet bulb. If superheat measured deviates from values found in Table 4, refrigerant charge should be adjusted accordingly for maximum performance. Suction Superheat Size Suction Superheat @ARI Conditions 80° IDDB/67° IDWB82° OD R22 410A 24 22° 15° 30 20° 15° 36 20° 12° 42 20° 12° 48, 60 20° 10° Table 4 Page 8 of 13 Issue 0902 506252-01 Owner Record MAINTENANCE WARNING ELECTRICAL SHOCK, FIR

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

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.

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.

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

CAUTION When flushing existing line set and/or indoor coil, be sure to empty all existing traps. Residual mineral oil can act as an insulator, preventing proper heat transfer. It can also clog the thermal expansion valve, reducing system performance and capacity. Failure to properly flush system as explained in these instructions will void warranty. Required Equipment The following equipment is needed to flush the existing line set and indoor coil (see Figure 8): Two clean R22 recovery bottles,

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

Use appropriate safety gear including safety glasses and gloves when installing this equipment. WARNING Risk of electrical shock. Disconnect all remote power supplies before installing or servicing any portion of the system. Failure to disconnect power supplies can result in property damage, personal injury, or death. WARNING Installation and servicing of air conditioning equipment can be hazardous due to internal refrigerant pressure and live electrical components. Only trained and qualified se

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