XM678D

SKU: XM678D

ADVANCED MULTIFUNCTION CONTROLLER FOR NT AND LT VENTILATED APPLICATIONS WITH STEPPER VALVE MANAGEMENT

Specifications

Generals: Keyboard: 6 push buttons (on CH660, T660H)

Power supply: 24Vac

Probe inputs: Thermostat: NTC, Pt1000 - Defrost: NTC, Pt1000 - Display: NTC, Pt1000 - AUX: NTC, Pt1000 - Suction pressure: NTC/Pt1000/4÷20mA/0÷5V - Condesing pressure: NTC/Pt1000

Digital inputs: 3 x configurable

Relay outputs: Compressor/Valve: 5A - Defrost: 16A - Fans: 8A - Light: 16A - Alarm: 8A - AUX: 8A

Other: Hot Key / Prog Tool Kit output: present - Serial output: RS485 optional - 4÷20mA/0÷10V output: optional - PWM output: optional - Valve driver output: stepper - Remote display output: optional - Buzzer: on keyboard - Real time clock: present - Connection kit: XM-FC26

Power absorption: 20VA max

Display: 3 digits, red LED, 14,2mm high

Data storing: on the non-volatile memory (EEPROM)

Operating temperature: 0÷60 °C

Storage temperature: -25÷60°C

Relative humidity: 20÷85% (no condensing)

Measuring and regulation range: NTC probe: -40÷110°C
PTC probe: -50÷150°C
PT1000 probe: -100÷100°C

Resolution: 0.1°C or 1°C

Accuracy (at ambient temperature): ±0.5°C ±1 digit

Features

Efficient case control thanks to device synchronization (up to 8) by local LAN
Optimized management of stepper or pulse electronic expansion valves
Low environmental impact (CO2, R407C and R407F compatible)
Energy saving through case optimization with auto-adaptive control of superheat
Energy consumption reduction thanks to ECI fan management via PWM or 0÷10V output
Anti-sweat heater management through a ”DEW POINT”
Virtual probe management
Keyboard with direct access to the main functions
Internal Real Time Clock
Hot Key for quick and easy programming

Documents & Drawings