Daikin Microtech III [3/100] Caution

Daikin Microtech III [3/100] Caution
Introduction
This manual contains information regarding the MicroTech
®
III
control system used in the Daikin Rooftop and Self Contained
product lines. It describes the MicroTech III components, input/
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and service procedures. For a description of operation and
information on using the keypad to view data and set control
parameters, refer to the appropriate operation manual. For
installation and commissioning instructions and general
information on a particular unit model, refer to its model-
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Table 1: Operation, Installation and Maintenance Resources
Unit Manual
MicroTech III Rooftop and Self-
Contained Unit Controller Protocol
Information
ED 15112-16
Rooftop/Self-Contained Operation OM 920
MicroTech III Remote Unit Interface IM 1005
RPS/RDT/RFS/RCS 015C-105C IM 926
RPS/RDT/RFS/RCS 015D-140D IM 893
SWP Self-Contained (012H-130H) IM 1032
RoofPak RAH/RDS IM 987
Maverick II Rooftop 62-75 ton IM 991
Maverick II Rooftop 15-50 ton IM 1058
NOTICE
This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance
with this instruction manual, may cause interference to radio
communications. It has been tested and found to comply with
the limits for a Class A digital device, pursuant to part 15 of the
FCC rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment
is operated in a commercial environment. Operation of this
equipment in a residential area is likely to cause harmful
interference in which case the user is required to correct
the interference at his own expense. Daikin International
disclaims any liability resulting from any interference or for the
correction thereof.
WARNING
Electric shock hazard. Can cause personal injury or equipment
damage.
This equipment must be properly grounded. Connections and
service to the MicroTech III control panel must be performed
only by personnel that are knowledgeable in the operation of
the equipment being controlled.
WARNING
Excessive moisture in the control panel can cause hazardous
working conditions and improper equipment operation.
When servicing this equipment during rainy weather, the
electrical components in the main control panel must be
protected from the rain..
CAUTION
Extreme temperature hazard. Can cause damage to system
components.
The MicroTech III controller is designed to operate in ambient
temperatures from -20°F to 125°F. It can be stored in ambient
temperatures from -40°F to 140°F. It is designed to be stored
and operated in relative humidity up to 95% (non-condensing).
WARNING
Static sensitive components. A static discharge while
handling electronic circuit boards can cause damage to the
components.
Discharge any static electrical charge by touching the bare
metal inside the main control panel before performing any
service work. Never unplug any cables, circuit board
terminal blocks, relay modules, or power plugs while
power is applied to the panel.
WARNING
Warning indicates potentially hazardous situations for
PVC (Polyvinyl Chloride) and CPVC (Clorinated Polyvinyl
Chloride) piping in chilled water systems. In the event the pipe
is exposed to POE (Polyolester) oil used in the refrigerant
system, the pipe can be chemically damaged and pipe failure
can occur.
General Description
The MicroTech III Unit Controller is a microprocessor-based
controller designed to provide sophisticated control of Daikin
Air Handling unit. In addition to providing normal temperature,
static pressure, and ventilation control, the controller can
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shutdown if critical system conditions occur.
The operator can access temperatures, pressures, operating
states, alarm messages, control parameters, and schedules
with the keypad/display. The controller includes password
protection against unauthorized or accidental control parameter
changes.
This MicroTech III controller is capable of complete, stand-
alone rooftop unit control, or it can be incorporated into a
building-wide network using an optional plug-in communication
module. Available communication modules include BACnet/IP,
BACnet
®
MS/TP, and 
®
. Refer to manual ED15112 for
point listings for all protocols.
Component Data
The main components of the MicroTech III control system
include the main control board (MCB) with a built in keypad/
display and I/O’s, Expansion Modules A, B, C, D, E.
Transformers T2, T3 and T9 supply power to the system. The
following pages contain descriptions of these components and
their input and output devices.
Introduction
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