Carrier VVT 33ZC Installation, Start-up And Configuration Instructions

Contents

6Install Field-Supplied Actuators — Follow the damp-er manufacturers recommended installation instructions withthe following recommendations.Belimo Multi-Function technology actuators may be ordereddirect from Belimo. The following accessory actuators may beused instead of the integrated actuator:• NM24-MFT US P-30002 — 70 in.-lb actuators withfloating point control and 0 to 10 vdc feedback.• AM24-MFT US P-30002 — 160 in.-lb actuators withfloating point control and 0 to 10 vdc feedback.The following actuators may be used as linked actuators.Up to four actuators may be linked to the main actuator:• LM24-MFT US P-10002 — 35 in.-lb actuators with 0 to10 vdc control and 0 to 10 vdc feedback.• NM24-MFT US P-10002 — 70 in.-lb actuators with 0 to10 vdc control and 0 to 10 vdc feedback.• AM24-MFT US P-10002 — 160 in.-lb actuators with 0to 10 vdc control and 0 to 10 vdc feedback.FLOATING POINT HIGH-TORQUE ACTUATORS —The field-supplied floating point high-torque actuators aremulti-function technology actuators intended for applicationswhere higher torque is needed for bypass operation. Theseactuators would replace the integrated actuator on the bypasscontroller. The actuators have three wires for power andcontrol and one 0-10VDC feedback wire to send a signal to thebypass controller and any linked actuators. The three controlwires are 1(BLK), 2(RED), and 3(WHT). The 1(BLK) and2 (RED) wires provide power to the actuator. These should bewired to the same power source as the bypass controllermaking sure wire 2 (RED) connects to J1-1 on the power plugof the Bypass controller and wire 1 (BLK) connects to J5-2 thecommon of the Bypass Controller power. See Fig. 7 and 8 forwiring.Polarity of the actuator and bypass controller power must bethe same for proper operation and to prevent damage to thedevices. A 1N4004 or 1N4007 diode must be placed across theCCW and CW terminals of the bypass controller. The end ofthe diode with the silver band tip (positive end) should beplaced in the CCW terminal along with Wire 3(WHT). Theother end of the diode should be placed in the CW terminalwith the actuator switch in the CW or default position. Thiswill make the damper rotate CCW when the CCW terminal isenergized and CW when the CW terminal is energized. Forreverse rotation the actuator switch may be changed to theCCW position.LINKED ACTUATORS — Field-supplied linked actuatorsmay be used to link to the bypass controller actuator. Install theactuators per the manufacturer’s directions. Provide power forthe linked actuators by wiring 24 vac to the 1(BLK) and 2(RED) wires. Maintain polarity if more than one actuator ispowered by the same power supply. Make sure the directionrotation switches on the linked actuators are set to CW. Wirethe wire 3 (WHT) of the linked actuator(s) to the wire 5 (GRN)of the controlling actuator. The linked actuator will then trackto the same damper position as the controlling actuator. SeeFig. 8-10 for wiring.Linked actuators may be used to control off the integratedactuator of the bypass controller actuator. Install the actuatorsper the manufacturer’s directions. Provide power for the linkedactuators by wiring 24 vac to the 1 (BLK) and 2 (RED) wires.Maintain polarity if more than one actuator is powered by thesame power supply. Make sure the direction rotation switcheson the linked actuators are set to CW. Connect wire 3 (WHT)of the linked actuator to J4-7(DMPPOS).Damper Stops — For clockwise closed installations thedamper stop on the right side of the damper shaft is left at thefull clockwise position. The stop on the left side of the shaftmust be moved to stop the actuator at the full open position forthe damper. For example the Carrier round dampers rotate45 degrees. Slide the left stop up to the 45 degree mark. Pressthe actuator release button and rotate the damper CCW all theway to the stop. The damper blade indicator should indicatethe damper is full open. Wire 5 (white) should be wired toJ4-7(DMPPOS). See Fig. 2.NOTE: The rotation switch should be in the CW position forcorrect feedback for this application. Reverse the rotation byconfiguring the bypass controller for clockwise open and donot change the switch from the CW position.Connect the Carrier Network Communica-tion Bus — The bypass controllers connect to the bus in adaisy chain arrangement. The bypass controller may be in-stalled on a primary bus or on a secondary bus from the prima-ry bus. Connecting to a secondary bus is recommended.At any baud (9600, 19200, 38400 baud), the number of con-trollers is limited to 239 zones maximum. Bus length may notexceed 4000 ft, with no more than 60 total devices on any1000-ft section. Optically isolated RS-485 repeaters are re-quired every 1000 ft.