• Drivers for ON/OFF (pulsed) and stepper electronic expansion valve management
• ON/OFF (pulsed) expansion valve support with 30W max power and coil c.a.
• Temperature analog inputs (NTC, PTC, Pt1000)
• Pressure analog inputs (0-5V, 4-20mA)
• Possibility to broadcast via LAN the pressure signal to multiplexed cabinets
• Alarm management (visual, relay)
• Cool Defrost for defrost time reduction
• Superheat adaptive control
• Standard communication protocol ModBUS-RTU
• Hot Key or Prog Tool Kit connector for a quick and easy programming
• 20VA max power absorption
• Display with red LED (10.5mm high) and icons

XEV11D ON/OFF Electronic expansion valve driver
XEV12D ON/OFF Electronic expansion valve driver with integrated display 
XEV21D Stepper electronic expansion valve driver

FEATURES	XEV11D	XEV12D	XEV21D
Display: n° digits		on keyboard ± 3 d.p.	on keyboard ± 3 d.p.
Keyboard push buttons		push buttons : 3
Power supply	24, 110, 230Vac	24, 110, 230Vac	24Vac
Probe inputs
Suction pressure	4-20mA/0-5V	4-20mA/0-5V	4-20mA/0-5V
Suction temperature	NTC, Pt1000	NTC, Pt1000	NTC, Pt1000
Digital inputs
Free of voltage	present	present	present
High voltage	present	present	present
Relay outputs
Alarm	8A config	8A config	8A config
Other
Valve driver output	ON/OFF up to 30W	ON/OFF up to 30W	stepper
Hot Key / Programming Tool Kit	present	present	present
Remote keyboard output	KB1 PRG
Serial output	RS485	RS485	RS485
Alarm recovery by LAN	present	present	optional
Buzzer	option	option
Battery backup input			present

XEV22D Stepper electronic expansion valve driver with integrated display 
XEV32D Stepper electronic expansion valve driver with integrated display and sub-cooling management

FEATURES	XEV12D	XEV21D
Display: n° digits	on keyboard ± 3 d.p.	on keyboard ± 3 d.p.
Keyboard push buttons	push buttons : 3	push buttons : 3
Power supply	24Vac/dc	24Vac/dc
Probe inputs
Suction pressure	4-20mA/0-5V	4-20mA/0-5V
Suction temperature	NTC, Pt1000	NTC, Pt1000
Output liquid temperature		NTC, Pt1000
Digital inputs
Free of voltage	present	present
High voltage	present	present
Relay outputs
Alarm	8A config	8A config
Other
Valve driver output	stepper	stepper
Hot Key / Programming Tool Kit	present	present
Serial output	RS485	RS485
Alarm recovery by LAN	present	present
Battery backup input	present	present