Specifications
iPro DAC Manual Introduction • 1
1Introduction
The iPro DAC (P/N 818-9001) is a packaged
HVAC control board for use either as a standalone
controller or in zone control applications using a Re-
tail Solutions E2 BX building control system. The
iPro DAC is capable of controlling heat and cool stag-
es, fans, dehumidification devices, and economizers
using on-board I/O and control algorithms, as well as
monitor and interact with other building control sys-
tems and peripherals (such as smoke alarms and CO2
sensors).
The iPro DAC supports local physical inputs and
outputs and communicates with the E2 controller
(version 3.00 and higher) via the RS485 MODBUS
network.
The E2 will support a maximum of 32 instances of
the iPro DAC to be added to a BX-300 or CX-300.
The E2 will support a maximum of 50 iPro DAC de-
vices on a BX-400 or CX-400.
The iPro DAC supports 15 relay outputs, 6 analog
outputs, 10 analog inputs, and 20 digital inputs.
1.1. The iPro DAC’s I/O Points
The compact size of the iPro DAC allows techni-
cians to field-mount the iPro DAC in a rooftop unit or
enclosure close to it, allowing for local connection of
sensors and transducers. The board has 10 analog in-
puts and 20 digital inputs, with default configurations
pre-loaded for quick connection to space temperature
sensors, supply and return air temperature sensors,
and fan proofs. Its 15 relay outputs, rated 2.0 amps
max, are used for activating and deactivating fans,
heat and cool stages, economizers, and other systems
or devices. Its 6 analog outputs may be used for air
damper, modulated heat and cool control, and vari-
able-speed fan control.
1.2. Independent System Con-
trol
The iPro DAC can control a rooftop unit indepen-
dently without the need of a central controller (such as
the E2 BX Building Controller). However, the iPro
DAC is designed to interface with an E2 to allow it to
work with other iPro DACs together to control large
zones. Networking the iPro DAC to a central control-
ler also allows you to view status on E2 and
UltraSite32 Site Manager status screens, report
alarms, and log point values.
The iPro DAC’s configuration can be pro-
grammed through the E2 front panel.
Figure 1-1 - iPro DAC