Carrier CRPWREXH068A00 Installation Instructions Manual

3INSTALLATIONPower and Control Wiring1. Unpack the contents of the crate. Use Table 3 to confirm thatthe kit contains all of its parts.2. The power exhaust motor is factory wired to the high speedtap (terminal 1). To change the motor speed move the blackwire to the desired speed tap on the motor per Table 4.NOTE: When using the power exhaust in a horizontal appli-cation, some wiring may have to be field lengthened.3. Remove the control box access panel.4. Install the Power Exhaust Relay (PER) in the control box, atthe position shown in Fig. 1 for vane axial units and Fig. 2 forbelt drive fan units, using two 8-18 in. x 1/2 in. pan headscrews (AL56AU166).NOTE: The power exhaust motor closest to the control box is PEM1.The motor furthest from the control box is PEM2.Fig. 1 — Power Exhaust Relay Installation(Vane Axial Fan Units)Fig. 2 — Power Exhaust Relay Installation(Belt Drive Fan Units)5. Install wiring harness (50HEMRAX-A00) in the control boxas shown in Fig. 3. Refer to Fig. 4 for point to point connec-tions. Wiring harness label near terminals should match con-nection point in control box.6. Connect violet wire in unit wiring harness from PL6-11 to thePower Exhaust Relay (PER) coil terminal 1.7. Bundle the power exhaust wiring harness to existing controlbox wiring harness with 6 of the supplied wire ties.pFig. 3 — Power Exhaust Wiring InstallationTable 4 — Motor Speed Tap ConfigurationMOTOR TERMINAL NUMBERPOWEREXHAUSTMOTOR 1 2 3PEM1 High Medium LowPEM2 High Medium LowLEGENDPEM — Power Exhaust MotorPowerTerminalBlockUnitControlBoardPower Exhaust RelayMounting LocationPower Exhaust RelayMounting LocationPowerTerminalBlockCentralTerminalBoardHarnessAssemblyPEROFCPL9PL6