Daikin Microtech III Operation And Maintenance Manual page 4

Table 1: Control options
Control
The MicroTech III controller is a
standalone microprocessor-based
MicroTech III
control board conveniently located
in the unit control enclosure for easy
accessibility. The board is designed
to provide thermostat control of a
Water Source Heat Pump using a
two-stage wall thermostat. The unit
controller provides unit-wide control
of the WSHP and control of the first
refrigerant circuit.
(Standalone) Unit
The I/O Expansion Module is
Controller with I/O
an extension of the Microtech III
Expansion Module
controller and provides control
of the second refrigerant circuit.
External LED status lights display
fault conditions to provide easy
troubleshooting and diagnosis of the
second circuit.
The MicroTech III control system
W
accepts a plug-in L
on orks
L
commu nication module to provide
network communications and
added functionality to easily
integrate with an existing BAS.
The communication module can
be factory- or field-installed and
Communication
Module is tested with all logic required to
monitor and control the unit.
The MicroTech III controller
BACnet
accepts a plug-in BACnet commu-
nication module to provide
network communications and
added functionality to easily
integrate with an existing BAS.
The communication module can
be factory- or field-installed and
Communication
is tested with all logic required to
Module
monitor and control the unit.
OM 1239
Description
Each unit controller is factory
programmed, wired, and tested for
complete control of single zone,
standalone operation of your Daikin
Water Source Heat Pump.
Allows for:
•
L
W
on orks
is designed for units that are
integrated into a L
communication network for
centralized scheduling and
management of multiple heat
pumps.
Designed to be linked with a
centralized building automation
system (BAS) through a BACnet
communications network for
centralized scheduling and
management of multiple heat
pumps.
Application
Control of second refrigeration
circuit.
T
on aLk application protocol
W
on orks
4
I
ntroduCtIon
Protocol
Unit-mounted or wall-mounted
thermostat or room sensor
L M 3.4 Certified
on ark
BACnet
MS/TP
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