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Replacement Products

OAC-3000 Controller

Outdoor Airflow Controller Module with Network Control Connection for MP-Bus Actuators

The OAC-3000 modulates an MP-bus network actuator to maintain the outdoor airflow rate. The MP-bus solution is the most cost-effective method for actuating small air valves and dampers on ducted systems to fan coils, makeup air to air handlers, or zone-level DOAS applications. DCV requires approved BACnet MS/TP CO2 sensors or occupancy counters.

FEATURES

Specifications

FUNCTIONALITY

Minimum Outdoor Air Control (MOAC) Modes Supported

FLOW: Maintains a user defined airflow setpoint

CO2: Maintains a user defined CO2 level by resetting the outdoor airflow setpoint (requires a CO2 sensor)

CO2/OAF: Maintains a calculated outdoor airflow setpoint based on the estimated ventilation zone population (requires a CO2 sensor)

COUNT: Maintains a calculated outdoor airflow setpoint based on the occupancy counter population (requires an occupancy counter)

FIXED: Maintains a fixed damper position (no control)

Unoccupied Air Control (UAC) Mode Option: Yes, maintains a user defined airflow setpoint

Notification Alarms

“Unoccupied Mode” High/Low Airflow Alarm

“Minimum Outdoor Airflow Mode” High/Low Airflow Alarm

“All Modes” CO2 Alarm (requires a CO2 sensor)

“All Modes” System Trouble Alarm

Note: Alarms can be assigned to the contact closure

USER INTERFACE

Display: 16-character alpha-numeric LCD

Navigation: 4-button interface

INTEGRATED SENSOR CAPABILITY

Type: Accepts GreenTrol IAT-DI, IAT-UI and IAT-US Thermal Dispersion Airflow and Temperature Measurement Probe (required unless an external MS/TP airflow measurement device is provided). See appropriate IFT product data sheet for probe information.

Available Configurations: IAT-DI Probes

Single Probe: 1 probe x 1 or 2 sensor nodes/probe

Available Configurations: IAT-UI and IAT-US Probes

Single Probe:Dual Probe: 1 probes x 1 sensor node/probe

Dual Probe: 2 probes x 1 sensor node/probe

BINARY INPUT

BI

Type: Binary Input (BI1)

Assignment: Mode activation trigger signal

Configurable Ranges: 0-24VAC or 0-24VDC

Trigger Threshold

VAC configuration: 6.5 VAC

VAC configuration: 8 VDC

MP-BUS OUTPUT

MP1

Assignment: MP-Bus proportional actuator network signal (requires MP-bus cable, sold separately)

CONTACT CLOSURE RELAY

R1

Type: Dry contact w/ onboard jumper to drive a remote LED

Assignment: OAC alarms or Control Mode

Status: Normally Open (N.O.)

Rating: 30 VDC or 24 VAC @ 3 amp. max.

NETWORK CONNECTIONS

N1

Type: Non-isolated MS/TP BACnet master connection (provide an RS-485 network isolator if isolation is required)

B.A.S. Object Read/Write Access: Yes

Device Load: 1/8 load

Supported Baud Rates: 9.6, 19.2, 38.4 and 76.8 kbaud

MS/TP BACnet Airflow Sensor Capability: One GreenTrol Automation or approved third-party airflow measurement device (cannot be used if an integrated airflow measurement device is connected).

MS/TP BACnet CO2 Sensor Capability: One GreenTrol Automation or approved third-party space mounted or return air CO2 sensor

MS/TP BACnet Occupancy Counter Capability: One to four GreenTrol Automation or approved third-party occupancy counters sensor

ENVIRONMENTAL LIMITS, POWER REQUIREMENTS & DIMENSIONS

Environmental Limits

Temperature: -20 to 120 ⁰F [-28.9 to 48.9 ⁰C]

Humidity: 5 to 95%

Important: Provide a weather-proof enclosure if the controller module is mounted outdoors

Power Requirement: 24 VAC (22.8 to 26.4 under load) @8.5V-A

Dimensions:

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