Carrier VVT 33ZC Installation, Start-Up And Configuration Instructions Download Page 20

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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 111

Catalog No. 533-30012

Printed in U.S.A.

Form 33ZC-14SI

Pg 20

10-04

Replaces: New

Book 1

Tab

11a 13a

SEN

Fig. 12 — Bypass Controller Operation Flow Chart

LEGEND

—

Bypass

BP_SETPT

—

System Pressure Setpoint

DAT

—

Duct Air Temperature

DMP_POS

—

Damper Position

LAT

—

Leaving Air Temperature

LAT_ALARM —

Leaving Air Temperature Alarm

LAT_HYST

—

Leaving Air Temperature Setpoint Hysteresis

—

Linkage Coordinator

PS_error

—

Static Pressure Sensor error

SP_SENSR

—

Static Pressure Sensor

SP_SET

—

Static Pressure Setpoint

Summary of Contents for VVT 33ZC

Page 1: ...oordinate up to 31 additional zone controllers The purpose of the Linkage Coordinator zone relationship is to provide an efficient data path for communica tion between the zone controllers bypass cont...

Page 2: ...ding the damper shaft through the actuator clamp assembly See Fig 2 for details Remove the controller wiring access cover Secure the controller by installing the screw provided through the grommet in...

Page 3: ...3 Fig 2 Bypass Controller Dimensions Fig 1 Bypass Controller Details...

Page 4: ...ENSOR 1 6 J5 3 1 G CCN 3 3 G 1 1 5 1 6 1 J4 1 2 NOT USED NOT USED NOT USED DAT NOT USED NOT USED NOT USED NOT USED DAT TO COMMUNICATION BUS TO FEEDBACK POTENTIOMETER LINE VOLTAGE EQUIPMENT GROUND TO D...

Page 5: ...p the grommet into the hole until it is secure Pull on the leads of the duct sensor until the sensor is snug against the grommet 3 Connect the sensor leads to the bypass controller s termi nal board a...

Page 6: ...reverse rotation the actuator switch may be changed to the CCW position LINKED ACTUATORS Field supplied linked actuators may be used to link to the bypass controller actuator Install the actuators pe...

Page 7: ...7 Fig 7 High Torque Actuator Wiring...

Page 8: ...8 Fig 8 High Torque Actuator with Linked Dampers Wiring...

Page 9: ...9 Fig 9 Field Supplied Linked Damper Wiring...

Page 10: ...10 Fig 10 Multiple Field Supplied Linked Damper Wiring...

Page 11: ...s cable a color code system for the entire network is recommended to simplify installation and checkout See Table 4 for the recommended color code Table 4 Color Code Recommendations 3 Connect the othe...

Page 12: ...ew bypass pressure set point 10 Read the airflow with a measuring device If the reading varies from the screen value force the value to the mea sured value Once the pressure sensor is forced the contr...

Page 13: ...iable displays whether the leaving air temperature exceeds the heating or cooling limit configured in the Bypass Controller Service Configuration Table If Yes is displayed the System Pressure Set Poin...

Page 14: ...zone controller to turn the system fan off If the communication fails the damper calibration process will be terminated and this decision will be Disabled When the fan is off the zone controller will...

Page 15: ...NT Duct Temperature This variable displays the duct tempera ture at the bypass damper through a 10K thermistor with a measurement range from 40 to 245 F in 0 1 F increments Duct Temperature Display Un...

Page 16: ...efault Value Close Max Damper Alarm Limit This decision is used to gener ate alarms during system heating and cooling modes When the bypass damper position is greater than this configured limit and th...

Page 17: ...ease to within the zero tolerance 1 0 0 1 vdc of the sensor The alarm is disabled if this decision is set to Disable Press Sensr Cal Alarm Default Value Enable Display Range Enable Disable Duct Temp C...

Page 18: ...is off When the fan is off the bypass controller will drive its damper to the fully closed position The bypass controller will read the value of the actuator s feedback potentiometer until the value...

Page 19: ...l terminate the calibration Once at the fully open damper position the bypass controller will read the output voltage of the pressure sensor If the voltage reads within the range of 1 0 vdc 0 1 volt i...

Page 20: ...b 11a 13a Copyright 2004 Carrier Corporation SEN Fig 12 Bypass Controller Operation Flow Chart LEGEND BP Bypass BP_SETPT System Pressure Setpoint DAT Duct Air Temperature DMP_POS Damper Position LAT L...

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

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