Submittal Sheet

FOR FAN COIL/HEAT PUMP/CONVENTIONAL SYSTEMS
31-00096—02 2
SPECIFICATIONS
Power
24VAC power from a UL Listed Class-2 24VAC transformer
(not provided). The BACnet FF uses a half-wave rectifier
to convert the AC power supply to onboard power. This
enables multiple devices with half-wave power supplies
to be powered from a single, grounded transformer.
WARNING
Half wave devices and full wave devices must not
use the same AC transformer.
You must maintain wiring polarity. Failure to do so
can result in equipment damage.
If the HVAC equipment has an internal circuit board
that is powered by the same transformer that will
power the BACnet FF, verify that it is NOT full wave.
Min. Load = 17VA (all BOs OFF).
Max. Load = 89VA (all BOs ON).
If BO power jumper is not removed, then all BOs are pow-
ered from the controller’s transformer.
Minimum load includes controller and analog outputs at
full load (20mA into 500 Ohms).
All BOs are N.O. (Normally Open) contacts with a maximum
switch rating of 24VAC @ 0.5A (12VA).
Maximum load assumes all 6 relay output loads are pow-
ered from the controller transformer and connected
loads are the maximum allowed (24VAC @ 0.5A). Actual
power requirements depend on connected loads.
Wireless Receiver (TB3026B-W only)
433.92 Mhz; range is 50 feet.
Inputs
3 universal inputs with 12-bit accuracy, providing con-
trolled voltage, current and resistive modes. Requires a
10k type 2 thermistor when using remote sensors.
Internal Sensors
1 internal temperature sensor, 0–120 deg. F (-17.8–48.9
deg. C); 1 internal humidity, 5–95% RH, non-condens-
ing.
Relay Outputs
6 relay outputs; normally open contacts with a maximum
switch rating of 24VAC @ 0.5A (12VA). BO-0, BO-2 and
BO-5 are powered from the controller transformer. BO-
1, BO-3 and BO-4 are powered from control transformer
through removable jumper, allowing these BOs to be
powered from a separate power source.
Universal Analog Outputs
2 outputs with 12-bit resolution. Each auto-detects for 0–
10VDC or 4–20mA. 4–20mA outputs are sourced by the
BACnet FF. Connected loads must return to the
BACnet FF ground. The BACnet FF automatically
switches from 0–10V mode to 4–20mA current mode
when it detects a load value of less than 500 Ohms.
Processor & Memory
Powerful 32-bit processor with extensive flash memory
and RAM resources. Flash memory provides nonvolatile
program and data storage, and allows for encrypted
updates to the program for future product enhance-
ments.
Environmental
Residential, commercial and light-industrial environments.
0–120 deg. F (-17–49 deg. C). 0–95% RH, non-con-
densing.
Communications
BACnet MS/TP LAN up to 76.8Kbps.
Ratings
Listed Temperature Sensing Controls for US and Canada
(XACX, XACX7 under UL 60730-2-9, CSA C22.2
No. 60730-2-9, File E481079.
EMC Directive (European CE Mark) EN 60950
(TB30326B-W model only).
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates uses and
can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause
harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception, which
can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by
one or more of the following measures:
— Reorient or relocate the receiving antenna.
— Increase the separation between the equipment and
receiver.
— Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions: (1)
this device may not cause harmful interference, and (2)
this device must accept any interference received,
including interference that may cause undesired
operation.
This Class B digital apparatus complies with Canadian
ICES-003.
This device complies with Industry Canada license-exempt
RSS standard(s). Operation is subject to the following two
conditions: (1) this device may not cause interference, and
(2) this device must accept any interference, including
interference that may cause undesired operation of the
device.
Communications
Each device uses a BACnet MS/TP communications port.
The device’s data is presented to other devices over a
twisted-pair MS/TP network, which uses the EIA-485
signaling standard capable of the following baud rates: 9.6,
19.2, 38.4, or 76.8 kilobits per second (configured at global
controller). The BACnet FFs are master devices on the