Specifications

10 InRow™ Direct Expansion Air Conditioners Technical Specifications 990-4617
Microprocessor Controller
Microprocessor controller
The microprocessor controller is standard on each system. The controller provides precision control for the
demanding requirements of:
• Computer rooms
• Telecommunication facilities
• Clean rooms
• Power equipment
• Medical equipment rooms
• LAN/WAN environments
The easy-to-use display allows the operator to select options from the device’s menu-driven interface to control
and monitor the connected air conditioning system.
Open Architecture
The InRow Direct Expansion protocol is open for integration with all building management systems.
Communication interface on the system can be MODBUS RS485 or Ethernet.
Control Type
The controller uses proportional/integral/derivative (PID), a time-proven precision environmental control
method. This allows for custom tuning of control variables to achieve desired system response.
Functions
• Supply and Return Air Conditions
• Operational Mode Control
• Event Logging
• Alarms
• Redundant Group Control
• Fan Speed Adjustment
• Input/Output Module Programming
Logging
The event log keeps a record of all alarms and events. Each event log contains a time/date stamp. The
controller also displays run time, in hours, for major components (air filters, fans, and condensate pump, as
well as humidifier, heater, and compressor for the air-cooled unit).

Critical Alarm LED

Warning Alarm LED

Check Log LED

Status LED

Liquid Crystal Display (LCD)

Menu Selection scroll keys

Escape key

Enter key

Help key