APC CM Series User Manual download pdf (Page 37)

32 APC NetworkAIR CM Series: Guide Specifications

Options Microprocessor. The microprocessor controller shall provide total

environmental control. The system, based on the main controller, shall offer

up to eight analog inputs, two analog outputs, twelve digital inputs and

thirteen digital outputs. The operator interface shall provide a 4-line, 80-

character backlit LCD display. User-friendly menu structure along with

clearly defined prompts shall allow the operator to easily move about the

program and monitor the following functions and alarm conditions.

• Status: Complete status monitoring shall be provided within the status

menu of the microprocessor controller, and shall include the following

information: current temperature, current humidity, temperature

setpoint, humidity setpoint, cooling status, heating status, humidification

status, and dehumidification status.

• Alarms: Quick access to any alarm condition shall be facilitated

through the menu structure. Presence of a new alarm shall sound an

audible alarm. A red alarm LED on the display panel shall remain

illuminated until such time that all alarms have been cleared. Alarm

annunciation shall include: loss of air, clogged filter, high head pressure,

low suction pressure, high temperature, low temperature, high humidity,

low humidity. The temperature and humidity alarm setpoints are user

adjustable.

• Setpoint: The microprocessor controller shall provide independent

setpoints for heating, cooling, humidification, and dehumidification.

Automatic setpoint cross-over protection shall prevent the setting of the

heat setpoint above the cool setpoint, and the humidify setpoint above

the dehumidify setpoint. Setpoint adjustment shall be capable of being

protected via security code.

• Configuration: Flexibility shall be offered through the use of the

configuration menu. It shall closely match the operating requirements by

changing the configuration settings. The site configuration shall be

stored in the EEPROM and be protected from unauthorized tampering

by the user selectable 4-digit security password in the security menu.

Configuration options shall include: Fahrenheit or Celsius display,

compressor minimum off-time, power-loss restart time-delay, primary-

secondary transfer functions, alarm input polarity, alarm enable,

temperature deadbands, humidity deadbands, and small room delay.

• Run time: The major components within the unit (motor, humidifier

and compressor) shall have independent run-timers that monitor and

store the accumulated run-hours on the components. The run timers shall

be provided with operator-adjustable run-time alarms for proper

component maintenance.

Programmable thermostat/humidity controls (optional). The system

hall be supplied with a wall-mount programmable thermostat for temperature

control. The thermostat shall have full seven-day programming flexibility

with battery backup and an LCD display. The display shall continuously

indicate time-of-day, day-of-week, current program period and current room

temperature. When equipped with a humidifier and/or reheat, a hair-element

humidistat and/or dehumidistat shall be supplied to control humidification

and/or dehumidification.

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APC CM Series User Manual Page 37

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