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

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

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.

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