Download MicroTech Control System for Air

Introduction
This manual provides installation, setup and troubleshooting information for the MicroTech controller
provided on McQuay air-cooled screw compressor chillers. Please refer to the current version of
installation manual IOMM ALS for unit application information as well as water and refrigerant piping
details. All operating descriptions contained in this manual are based on the current MicroTech
controller software version at time of publication. Contact McQuay Technical Response Center at 1877-349-7782 for information on specific code versions. Chiller operating characteristics and menu
selections may vary depending on the actual software version installed.
CAUTION
This equipment generates, uses and can radiate radio frequency energy and if not
installed and used in accordance with the instructions 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 will be required to correct the interference at his
own expense. McQuay International disclaims any liability resulting from any
interference or for the correction thereof.
CAUTION
The McQuay MicroTech control panel contains static sensitive components. A static
discharge while handling electronic circuit boards may cause damage to the
components.
To prevent such damage during service involving board replacement, McQuay
recommends discharging any static electrical charge by touching the bare metal
inside the panel before performing any service work.
CAUTION
Excessive moisture in the control panel can cause hazardous working conditions and
improper equipment operation.
When servicing equipment during rainy weather conditions, the electrical devices
and MicroTech components housed in the main control panel must be protected.
The MicroTech controller is designed to operate within an ambient temperature range of minus 40 to
plus 185°F and a maximum relative humidity of 95% (non-condensing).
OM ALSMICRO
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