Wiring diagrams - Verasys - LC-ZEC410-x - Field Device - ZEC410

Verasys ZEC410 VAV Controllers Installation Guide
Brand
Verasys
Product name
ZEC410
Document type
Installation Guide
Part number
24-10143-1264
Document revision
C
Revision date
2019-10-04
Language
English

Procedure

  1. Terminate wiring according to Figure 2 if you are using staged outputs for the heating control. See Figure 1 if you are using incremental outputs for the heating control.
  2. Wire the network temperature sensor and CO2 sensor to the ZEC’s Sensor Bus.
  3. Wire the Zone Bus in a daisy chain.
  4. Ensure that the ZECs device address DIP switches are set to the appropriate device address. See Setup and adjustments. If necessary you can also activate the end-of-line (EOL) switch.
  5. Connect the ZEC controller to 24 VAC, Class 2 power.
    Figure 1. ZEC410-1 controller - VAV with staged reheat control wiring example

    Figure 2. ZEC410-1 controller wiring diagram

    Table 1. ZEC410-1 controller wiring diagram

    Callout

    Description

    Name on the Verasys user interface

    Terminal label

    Object name

    Signal type

    1

    24 V HOT power transformer

    		 n/a n/a

    n/a

    		 n/a

    2

    24 V COM power transformer

    3

    Electric heat safeties

    4

    Optional. Heating stage command 1

    HEATING STAGE COMMAND 1

    OUT1

    HTG1-C

    24 VAC on/off, internally sourced

    5

    Optional. Heating stage command 2

    HEATING STAGE COMMAND 2

    OUT2

    HTG2-C

    24 VAC on/off, internally sourced

    6

    Optional. Supply fan command

    SUPPLY FAN COMMAND

    OUT3

    SF-C

    24 VAC on/off, internally sourced

    7

    Optional. Supplemental heating stage command

    SUPPLEMENTAL HEATING STAGE COMMAND

    OUT4

    SUPHTG1-C

    24 VAC on/off, externally sourced

    8

    Optional. Heating stage command 3

    HEATING STAGE COMMAND 3

    OUT5

    HTG3-C

    24 VAC on/off, externally sourced

    9

    Connect to air flow probe (Polarity & not important)

    		 n/a n/a

    n/a

    		 n/a

    10

    Manual override

    11

    Optional. Relay: RIBU1C

    OCCUPANCY STATUS

    IN2

    OCC-S

    Dry Contact, Normally Open

    Normally Closed is configurable through the interface

    12

    Occupancy sensor OLS-2100-1. To red wire occupancy switch

    13

    Occupancy sensor OLS-2100-1. To neutral occupancy switch

    14

    Optional. Discharge air temperature sensor TE-631GV-2.

    DISCHARGE AIR TEMPERATURE

    IN1

    DA-T

    Nickel 1K RTD

    15

    To next device

    		 n/a n/a

    n/a

    		 n/a

    16

    From last device

    17

    See riser schedule to determine the EOL device. You must set the EOL switch to the ON position on the EOL device.

    18

    Zone temperature sensor NSB8BTN240-0. The connector is located on the back of the sensor.

    ZONE TEMPERATURE

    SENSOR BUS

    ZN-T

    Sensor Actuator (SA) bus

    19

    Optional. Zone CO2 sensor NSBCN7004-0. The connector is located on the back of the sensor.

    ZONE AIR QUALITY or ZONE CO2

    SENSOR BUS

    ZN-CO2