IM 916-5 • MICROTECH COMMUNICATION MODULE 4 www.DaikinApplied.com
Inc; Windows from Microsoft Corporation; Daikin, Maverick II, Rebel, and MicroTech from Daikin Applied Americas.
This manual provides instructions for installing or replacing
the BACnet communication module on a MicroTech 4 (Rebel
Applied) or MicroTech III (Rooftop Applied Systems, Self-
Contained Unit and Maverick II models) Commercial Packaged
Rooftop System unit controller. It describes how to set up the
unit controller for network communication and troubleshoot
common network issues.
The BACnet communication module is a printed circuit board
with a plastic enclosure that connects to the left side of the unit
controller or attached module. The BACnet communication
module has application software that enables the unit controller
to pass parameters using the BACnet IP protocol (Figure 1.)
The BACnet communication module connects the unit
controller to a building automation system (BAS) on a BACnet
local area network. It enables the exchange of BACnet objects
between the network and the unit controller. Refer to MicroTech
4 Rebel Applied or MicroTech III Applied Air Handling Unit
Controller Operation Manual for unit controller display menu
options. The Reference Documents section provides literature
numbers and locations.
General
Dimensions
W x H x D: 1.77 x 4.33 x 2.95 in (45 x 110 x
75 mm)
Weight 3.5 oz (98 g)
Material
Base - plastic, pigeon-blue
Housing - plastic, light-gray
Temperature -40 - 158°F (-40 - 70°C)
Humidity <90% RH
Atmospheric pressure
Min. 10 psi (70kPa), corresponding to max.
9,842 ft (3,000 m) above sea level
Temperature -40 - 158°F (-40 - 70°C)
Humidity <95% RH
Atmospheric pressure
Min. 3.77 psi (26 kPa), corresponding to max.
32,808 ft (10,000 m) above sea level
Power
Via unit controller: DC 5 V (+5% / –5%), max.
270 mA
Network connection
Ethernet 10/100 over CAT 5 cable
RJ-45 port, 8-pin connector
Board-to-board connector
10-pin plug between communication module
and unit controller
US UL916, UL873
Canada CSA C22.2M205
Europe
EMC directive 2004/108/EC
Low-voltage directive 2006/95/EC
RoHS directive 2002/95/EC
The BACnet communication module is a printed circuit board
with a plastic enclosure. It connects directly to the left-hand
side of the unit controller as shown in Figure 1. It may be
possible that another module is also connected to the unit
controller. In this case, the BACnet communication module
simply attaches directly to the left side of the existing module
instead of the unit controller.
Figure 2 shows the important features of the BACnet
communication module.
Figure 1: BACnet Communication Module Attached to
Main Controller .
Figure 2: BACnet IP Communication Module
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