Carrier 33CS Installation, Service And Instructions

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Installation, Service andTroubleshooting InstructionsCONTENTSPageGENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7Bypass Controller Placement . . . . . . . . . . . . . . . . . 2Mounting Bypass Damper Actuator to Duct . . . . 2Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 2Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 2Sensor Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Pressure Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Calibration Pressure Set Point andSelection of System Pressure Set Point . . . . . 6Zone Damper Control . . . . . . . . . . . . . . . . . . . . . . . . 7BYPASS CONTROLLER STAND-ALONEOPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8BYPASS CONTROLLER CONFIGURATION . . . . . 8Manual Configuration . . . . . . . . . . . . . . . . . . . . . . . . 8Computer Configuration . . . . . . . . . . . . . . . . . . . . . . 8BYPASS CONTROLLER DISPLAY . . . . . . . . . . . . 8-10Information Display . . . . . . . . . . . . . . . . . . . . . . . . . 10Bypass Controller Initialization Display . . . . . . . 10Alternate Information Display . . . . . . . . . . . . . . . . 10Display Freeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10COMMUNICATION . . . . . . . . . . . . . . . . . . . . . . . . . 10,11Communication Interface . . . . . . . . . . . . . . . . . . . . 10Device Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Device Bus Number . . . . . . . . . . . . . . . . . . . . . . . . . 11Device Access Security Level . . . . . . . . . . . . . . . . 11SENSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11,12Bypass Damper Duct TemperatureSensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Pressure Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Zone Temperature Monitoring . . . . . . . . . . . . . . . . 11Zone Temperature Sensor . . . . . . . . . . . . . . . . . . . 11Remote Room Temperature Sensor . . . . . . . . . . 12Indoor-Air Quality Sensor . . . . . . . . . . . . . . . . . . . 12BYPASS DAMPER MODULATION . . . . . . . . . . . 13-14Damper Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Bypass Damper Mode . . . . . . . . . . . . . . . . . . . . . . . 13Bypass Damper Modulation . . . . . . . . . . . . . . . . . 13Changeover Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . 13Counterclockwise Open DamperModulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14ZD/RD Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14PS Error Damper Position . . . . . . . . . . . . . . . . . . . 14Fan On Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Fan Off Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-18Error Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . 14System Errors (SE) . . . . . . . . . . . . . . . . . . . . . . . . . . 15Storage Failure (SF) Errors . . . . . . . . . . . . . . . . . . 15PageHardware Failure (HF) Errors . . . . . . . . . . . . . . . . 16Bypass Controller Reset . . . . . . . . . . . . . . . . . . . . . 18ALARM OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Equipment Priority . . . . . . . . . . . . . . . . . . . . . . . . . . 18Communication Failure Retry Time . . . . . . . . . . . 18Re-Alarm Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Alarm Routing Control . . . . . . . . . . . . . . . . . . . . . . 18Alarm System Name . . . . . . . . . . . . . . . . . . . . . . . . 18ALARM DESCRIPTION . . . . . . . . . . . . . . . . . . . . . 18,19Indoor-Air Quality Status Alarm . . . . . . . . . . . . . . 18NETWORK ACCESSIBLE VARIABLES . . . . . . . . 19BYPASS CONTROLLERTROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . 19-21General Operating Problems . . . . . . . . . . . . . . . . . 19Bypass Controller CommunicationProblems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22GENERALThis manual provides detailed explanations of the opera-tion of the Carrier Comfort System bypass controller andeach configurable function. The configurable functions al-low the operation of the bypass controller to be adjusted tomatch specific user needs and system requirements.The bypass controller is the pressure moderator of the VVTsystem. The pressure moderation ability of the bypass con-troller makes a zoning system with a constant volume HVACunit possible. The bypass controller maintains system staticpressure based on the used-configured set point. The bypasscontroller regulates system static pressure by opening its damperwhen it measures a pressure above the system set point andclosing its damper when it measures a system pressure be-low the system set point. If the system static pressure is within3% of the system set point, the damper will remain at itspresent position.The bypass controller will receive the system mode fromthe monitor thermostat and will modulate its damper ac-cording to user-configured settings, system mode, and sen-sor information. Only one bypass controller should be usedper one monitor thermostat.NOTE: The 33CSBC--00 bypass controller will only workwith 33CSPS--01 and 33CSPS--02 pressure sensors.NOTE: The Comfort System (33CS) bypass controller is notcompatible with a VVT Generation II Enhanced or Pre-Enhanced device. The Carrier 33CS VVT system will notsupport Enhanced or Pre-Enhanced devices.Book 1 4Tab 11a 13aPC 111 Catalog No. 809-246 Printed in U.S.A. Form VVT-3SI Pg 1 7-95 Replaces: New33CSVariable Volume and Temperature (VVTT)Bypass ControllerManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.