ICP PAF354000K00A1 Installation Instructions Manual

Contents

4. ELECTRICAL WIRINGELECTRICAL SHOCK HAZARD.Failure to follow this warning could result in personalinjury, death and/or property damage.The unit cabinet must have an uninterrupted,unbroken electrical ground to minimize the possibilityof serious injury if an electrical fault should occur.This ground may consist of an electrical wireconnected to the unit ground lug in the controlcompartment, or conduit approved for electricalground when installed in accordance with NationalElectric Code (NEC) NFPA 70, National Fuel Gas CodeNFPA 54-2005/ANSI Z223.1-2005 and local electricalcodes. In Canada, follow Canadian Electrical CodeCSA (Canadian Standards Association) C22.1 andlocal electrical codes.REDUCED EQUIPMENT LIFE HAZARDFailure to follow these precautions could result indamage to the unit being installed.1) Make all electrical connections in accordance withNational Electric code (NEC) NFPa 70 and local electricalcodes governing such wiring. In Canada, all electricalconnections must be in accordance with CSA standardC22.1, Canadian Electrical Code Part 1, and applicablelocal codes. Refer to unit wiring diagram.2) Use only copper conductor for connectionsbetween field-supplied electrical disconnect switch andunit. DO NOT USE ALUMINUM WIRE.3) Be sure that high-voltage power to unit is withinoperating voltage range indicated on unit rating plate.4) Do not damage internal components when drillingthrough any panel to mount electrical hardware,conduit, etc. Consult local power company forcorrection of improper voltage and/or phase imbalance.Disconnect SwitchThe unit must have separate electrical service with afield-supplied, waterproof, disconnect switch mounted at,orwithin sight from, the unit. Refer tothe unit rating plate formaximum fuse/circuit breaker size and minimum circuitamps (ampacity) for wire sizing.Ground ConnectionsDo NOT complete line voltage connections until unit ispermanently grounded. All line voltage connections and theground connection MUST be made with copper wire.A ground lug is installed in the control box area for theground connection. Use a copper conductor of theappropriate size from the unit to a grounded connection inthe electrical service panel or a properly driven andelectrically grounded ground rod. See warning above.Line Voltage Wiring - (Wiring Diagrams page 12 & 13)Connections for line voltage are made in the unit control boxarea. Refer to wiring diagram located on the Burner Accesspanel. For access, remove the burner access panel.1. Run the high voltage (L1, L2) and ground leads into thecontrol box.2. Connect ground lead to chassis ground connection.3. Connect L1 to pressure lug connection 11 of thecompressor contactor.4. Connect L2 to pressure lug connection 23 of thecompressor contactor.Thermostat / Low Voltage WiringLocation of the thermostat has an important effect on homecomfort. FOLLOW THE THERMOSTAT INSTRUCTIONMANUAL FOR CORRECT LOCATION, MOUNTING, ANDWIRING.For 2 to 3-1/2 Ton Models Only:A single stage thermostat is required for proper operation.Thermostat must have the following terminals: "R', "W',"Y", and "G'. Some electronic thermostats use low voltagefrom the unit for power for temperature display andprogramming. These electronic thermostats will have a'C"terminal. The outdoor unit has color-coded wires for easyconnection. Using wire nuts, follow FIGURE 3 for properconnections:FIGURE 3 2 to 3-1/2 Ton Thermostat Connections_!_ REO\ JK J i ',Thermostat and subbase Unit Control PowerFor 4 to 5 Ton Models Only:A two-stage thermostat is required for proper operation.Thermostat should have the following terminals: "R","W/W1 ", "Y1", "Y2", and "G'. Some electronic thermostatsuse low voltage from the unit for power for temperaturedisplay and programming. These electronic thermostatswill have a "C" terminal. The outdoor unit has color-codedwires for easy connection. Using wire nuts, follow FIGURE4 for proper connections:FIGURE 4 4 to 5 Ton Thermostat Connections©Cv©Thermostat and subbase Unit Control Power