McQuay M4AC 080 C, Manual

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Chiller Panel Controller
1. SAFETY CONSIDERATION
Only specially trained and qualified technicians and installers are authorized to install and service this equipment.
1.1 General Installation Recommendations
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Only supply DC voltage (9-17V, typically 12V, maximum current 200mA) as a power source to the device.
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Input contact voltage supply should limit to 12VDC or 24VAC.
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Isolated all the low voltage wiring (communication bus, etc.) from high voltage power supply wiring.
2. GENERAL DESCRIPTION
2.1 General
The Chiller Panel Controller is designed to control the Chiller operation. This device allows the user to have
customized control for each connected unit.
2.2 Features
The requirements of user friendly and easy to use have been taken into account in designing this Chiller
Panel Controller. It can do the task as follow:
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Whole system configuration
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Unique parameter settings
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Operation status display
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Tracing fault record (easy in hardware troubleshooting)
The display is shown in an 8-line graphical LCD display. There are 8 dedicated keys available in the panel,
which allow user to do the following task:
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Menu selection
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Navigation on the screen
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Modification of the selected value
During first start-up, the panel will have a default configuration (timer schedule, set point, miscellaneous
settings, etc). User can do the changes on that particular configuration later.
2.3 Panel Position
The Chiller Panel Controller can be installed anywhere, as long as it is easy to accessed by authorized
personnel.
The requirements of installation are:
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Avoid exposure to shocks
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Avoid any source of electromagnetic pollution
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Avoid installation on uneven vertical surface
2.4 Operation Environmental Condition
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Temperature:
-10ºC to 65ºC Operating Temperature
-20ºC to 85ºC Storage Temperature
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Relative Humidity:
0 to 95% Non - Condensing
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