Application flow diagram - Verasys - LIT-12013067 - LC-IOM3711-0 - LC-VAC1000-0 - LC-VAC3000-0 - Field Device - VAC1000 - VAC3000

Verasys Constant Volume Controller Application Note

Brand
Verasys
Product name
VAC1000
VAC3000
Document type
Application Note
Document number
LIT-12013067
Revision date
2021-10-13
Language
English

The flow drawing for the application varies based on the features you select. Figure 1 shows all the options you can apply to the system. Table 1 shows what the callouts in Figure 1 refer to. Table 1 describes each tag, provides a part number, and shows the point type required for each application.

Figure 1. Application flow diagram

Table 1. Application flow diagram

Number

Description

1

Rooftop or packaged unit enclosure

2

Up to four stages or proportional 0 V to 10 V

Note: The controllers can also support a heat pump instead of proportional or staged coils up to two stages and two stages of supplemental heat

3

Up to four stages or proportional 0 V to 10 V

4

Allow 10 in. (25.4 cm) minimum between humidifier and element

5

Humidifier control cabinet

6

Optional space sensor types

Table 2. Point list

Point type

Object name

Expanded ID

Johnson Controls part numbers

Required or optional

Binary input

SF-S

Supply Fan Status

CSDECM-C35200

Optional: Use this input if you want a supply fan alarm.

Binary input

FILTER-S

Filter Status

P32AC-2C

FTG18A-600R

Optional: Use this input when you require a contact for filter status.

Note: The controller also has a runtime limit alarm that you can use as a maintenance alarm for filters.

Binary input

PURGE-S

Purge Status

n/a

Optional: Dry contact input. Use this input when you want to purge the facility of smoke with the unit’s dampers.

Binary input

SERVICE-A

Service Alarm

n/a

Optional: Dry contact input. Use this input to give a general service alarm.

Binary input

LT-A

Low Temperature Alarm

A70HA-1C

TE-6001-8

Required: Use this input if you have water coils and an economizer.

Binary input

OCC-S

Occupancy Sensor

OLS-2100-1

RIBU1C

Optional: Lighting switch plus relay. Use this input to switch off the lights when motion is not sensed. The relay connects to the light circuit and wires to this input with the normal open contact. When energized, the unit is in occupied mode. When de-energized, the unit is in standby mode.

Analog input

SA-T

Supply Air Temperature

TE-6311M-1

Required: Use this input if you have an economizer and no mixed air temperature.

Analog input

MA-T

Mixed Air Temperature

TE-6315M-1

Required: Use this input if you have proportional heating or cooling and an economizer. If you have staged heating and cooling, and you do not have water, you can use a supply air temperature for the economizer control.

Analog input

OA-T

Outdoor Air Temperature

TE-6313P-1

Required: Use this input if you have economizer control. This input is for a hardwired sensor. The controller has the option to data share an outside air temperature to the controller.

Analog input

RA-Q

Return Air Quality

CD-P1000-00-00

Optional: Use this input when you have an economizer and you want demand ventilation control sequence. The RA-Q sensor or the ZN-Q sensor is necessary for this sequence to work. RA-Q has priority.

Analog input

RA-T

Return Air Temperature

TE-6311M-1

Optional: Use this input to control instead of a zone temperature sensor. If a zone temperature sensor is present it takes priority and the RA-T monitors only.

Analog input

MAD-FB

Mixed Air Damper Feedback

n/a

Optional: Required when you want Title 24 economizer fault detection diagnostics as part of the unit sequence. It is assumed the actuators connected to the economizer have a voltage feedback signal. Input range is adjustable but assumed to be voltage.

Analog input

ZN-H

Zone Humidity

HE-69130NS-0

Optional: Use this input this hardwired input when you want to control to a humidity level but want to use a hardwired humidity sensor instead of a NS humidity sensor. Using this option means you can use a duct-mounted sensor. The NS humidity sensor takes priority.

Analog output

MAD-O

Mixed Air Damper Output

Actuator (part requires sizing)

Required: Use this input when you have a mixed air damper with a two-position option, or use as an economizer. Output range is adjustable but assumed to be voltage.

Analog output

CLG-O

Cooling Output

Actuator (part requires sizing)

Optional: Required when you have proportional cooling. Output range is adjustable but assumed to be voltage.

Analog output

HTG-O

Heating Output

Actuator (part requires sizing) or signal to proportional gas valve

Optional: Required when you have proportional heating. Output range is adjustable but assumed to be voltage

Analog output

HUM-O / HUM-HL

Humidifier Output and Humidity High Limit

HL-67N5-8N00P

Optional: Required when you have a humidifier. The high limit sensor is required to back the signal off when high discharge humidity is sensed

Analog output

SF-O

Supply Fan Output

n/a

Optional: Required when you have a fixed variable fan.

Binary output

SF-C

Supply Fan Command

Conventional Thermostat Interface (CTI) or RIBU1C

Required: If you are going to a starter you need a RIBU1C relay wired to the output. You require a conventional thermostat interface when you have staged heating and cooling.

Binary output

HTG1-C / SHTG1-C

Heating Stage 1 Command / Supplemental Htg Stage 1 Command

CTI

Optional: If you have staged heating or if you have a heat pump with supplemental heat, use this binary output. You require a conventional thermostat interface or field relays.

Binary output

HTG2-C / SHTG2-C

Heating Stage 2 Command / Supplemental Htg Stage 2 Command

CTI

Optional: If you have 2+ stages of heat or if you have a heat pump with 2 stages of supplemental heat, use this binary output. You require a conventional thermostat interface or field relays.

Binary output

HTG3-C

Heating Stage 3 Command

CTI

Optional: If you have 3+ stages of heat, use this output. You require a conventional thermostat interface or field relays.

Binary output

HTG4-C

Heating Stage 4 Command

CTI

Optional: If you have 4+ stages of heat, use this output. You require a conventional thermostat interface or field relays.

Binary output

CLG1-C/

COMP1-C

Cooling Stage 1 Command/Compressor 1 Command

CTI

Optional: If you have staged cooling or if you have a heat pump, use this binary output. You require a conventional thermostat interface or field relays.

Binary output

CLG2-C/

COMP2-C

Cooling Stage 2 Command/Compressor 2 command

CTI

Optional: If you have 2+ stages of cooling or if you have a heat pump with 2 stages, use this binary output.You require a conventional thermostat interface or field relays.

Binary output

CLG3-C/

REV-C

Cooling Stage 3 Command/Reversing Valve

CTI

Optional: If you have 3+ stages of cooling or if you have a heat pump, use this binary output. You require a conventional thermostat interface or field relays.

Binary output

CLG4-C

Cooling Stage 4 Command

CTI

Optional: If you have 4+ stages of cooling, use this output. You require a conventional thermostat interface or field relays.

Binary output

HGBYP-C

Hot Gas Bypass Coil Command

RIBU1C

Optional: Use when you want to use a hot gas bypass coil to reheat when you dehumidify.

Binary output

HUM-C

Humidifier Command

RIBU1C

Optional: Use when you want to cycle the humidifier.

Sensor bus

ZN-T

Zone Temperature

NSB8BTN041-0

Optional: Use for zone control NS Sensor Type - Net Sensor, 120x80, No Logo, No Display, No Setpoint, Terminals

Sensor bus

ZN-T

ZN-TOCC

WC-ADJ

Zone Temperature

Zone Temporary Occupancy

Warmer Cooler Adjustment

NSB8BTN141-0

Optional: NS Sensor Type - Net Sensor, 120x80, No Logo, No Display, Warmer/Cooler Adjustment, Terminals

Sensor bus

ZN-T

ZN-TOCC

WC-ADJ

Zone Temperature

Zone Temporary Occupancy

Zone Setpoint

NSB8BTN241-0

Optional: NS Sensor Type - Net Sensor, 120x80, JCI Logo, LCD Display, Local Setpoint, Terminals (Up/Down Buttons)

Sensor bus

ZN-T

ZN-H

Zone Temperature

Zone Humidity

NSB8BHN041-0

Optional: NS Sensor Type - Net Sensor, 120x80, JCI Logo, No Display, No Setpoint, Humidity 3%, Terminals

Sensor bus

ZN-T

ZN-H

ZN-TOCC

WC-ADJ

Zone Temperature

Zone Humidity

Zone Temporary Occupancy

Warmer Cooler Adjustment

NSB8BHN141-0

Optional: NS Sensor Type - Net Sensor, 120x80, No Logo, No Display, Warmer/Cooler Adjustment, Humidity 3%, Terminals

Sensor bus

ZN-T

ZN-H

ZN-TOCC

ZN-SP

Zone Temperature

Zone Humidity

Zone Temporary Occupancy

Zone Setpoint

NSB8BHN241-0

Optional: NS Sensor Type - Net Sensor, 120x80, No Logo, LCD Display, Local Setpoint, Humidity 3%, Terminals (Up/Down Buttons)

Sensor bus

ZN-Q

ZN-T

ZN-H

ZN-TOCC

ZN-SP

Zone Air Quality

Zone Temperature

Zone Humidity

Zone Temporary Occupancy

Zone Setpoint

NSB8BHC241-0

Optional: NS Sensor Type - Net Sensor, 120x80, No Logo, LCD Display, Local Setpoint, Terminals (Up/Down Buttons)