InTroduCTIon
This manual provides information regarding the MicroTech
III control system. It specically describes the operation and
programmable options for units with constant air volume (CAV)
control and variable air volume (VAV) control.
The MicroTech III Controller is a self contained device that
is capable of complete, standalone operation. Information
in the controller can be displayed and modied by using the
keypad/display in the units main control panel. For installation
and startup instructions and general information regarding a
particular unit, refer to the applicable model-specic installation
and maintenance manual.
For installation and startup instructions and general information
regarding a particular rooftop unit, refer to the applicable
model-specic installation and maintenance manual (Table 1).
Table 1: Installation and Maintenance Resources
Unit Manual
MicroTech III Rooftop Unit Controller -
BACnet IP Communications IM 916
MicroTech III Rooftop Unit Controller -
BACnet MSTP Communications IM 917
MicroTech III Rooftop Unit Controller -
BACnet LON Communications IM 918
MicroTech III Unit Controller IM 919
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 (012 to 130) 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 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 II
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).
CAUTION
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.
Getting Started
This manual contains information designed to assist the eld
technician with unit setup. The technician will need to be
familiar with the following topics at a minimum to successfully
set up unit operation.
• Keypad navigation/editing/passwords
• Control Mode
• Occ Mode
• DSP Setpoint
• BSP Setpoint
• Heat/Cool Changeover (Zone Setpoints)
• DAT Clg Setpoint
• DAT Htg Setpoint
• Clg Enable (OAT/EWT lockout)
• Htg Enable (OAT lockout)
• Econo Enable (Changeover temp/Enthalpy switch)
• Ventilation Limit/OA damper
OM 920-6 • MICROTECH UNIT CONTROLLER 4 www.DaikinApplied.com
InTroduCTIon