- Overview
- Features
- Specs
- Resources
Overview
The CXM2 Communicating Controls is a microprocessor-based heat pump controller designed for enhanced application flexibility. It features relay outputs for the compressor, reversing valve, alarm relay, and a configurable fan relay, along with inputs for safety pressure switches, low-temperature protection thermistors, and more. The controller includes an RS-485 communications port for interfacing with communicating thermostats and tools, and supports advanced functions such as auxiliary shutdown capability and configurable inputs/outputs. With robust diagnostic capabilities, it can store operating condition history during the last five faults and offers intelligent fault retry features. The CXM2 operates effectively in a wide temperature range, ensuring reliable performance in various environmental conditions.
Features
Standard Features
- Microprocessor-based heat-pump controller for advanced application flexibility.
- Relay outputs for Compressor, Reversing Valve, Alarm Relay, and configurable Fan relay.
- On-board diagnostics with two LEDs for status indication.
- Inputs for safety-pressure switches, low-temperature protection thermistors, condensate-overflow sensor, DIP switch selection inputs, thermostat inputs, pump feedback, and emergency-shutdown input.
- RS-485 communications port for interfacing with communicating thermostats or other controls.
- Operating environment: -40°F to 176°F (-40°C to 80°C) with up to 95% relative humidity, non-condensing.
- Power requirements: Normally 5VA draw at 24VAC, maximum 10VA draw at 24VAC.
- Single-compressor control with anti-short cycle protection and multiple safety cutouts.
- Configurable inputs and outputs for advanced functions, with history storage of last five faults.
- Master/slave thermostat control capability for up to three units.
