TYPES OF WIRING

SB

MAIN SWITCH FOR MONOPHASE FANS

Overview:
• Mounted and wired switch
• IP65 degree of protection (EN 60529).
• Yellow and red colours.
• Can be locked in stop position.
• Compliant with European Low Voltage Directive 2006/95/EC.

C

WIRING AND JUNCTION BOX

Overview:
• Mounted and wired panel.
• Junction box made of UV-resistant plastic, IP55 degree of protection (EN 60529).
• Operating temperature -25 °C / +60 °C.
• UV resistant electrical cables suitable for outdoor use.

Specifications:
• Motor power terminal blocks.
• Connection of the fan heat-probes to the terminal block (in single-phase models the motor cutout may be directly installed in the power source and is therefore not available for external signals).
• Compliant with Standards EN 60204-1 and EN 61439-1.
• Compliant with European Low Voltage Directive 2006/95/EC.

T

WIRING IN ELECTRICAL PANEL WITH MOTOR CUTOUT (1 PER FAN)

Overview:
• Mounted and wired panel
• Box made of UV-resistant plastic, IP55 degree of protection (EN 60529).
• Operating temperature -25 °C / +60 °C.
• Lockable yellow/red main switch.
• UV resistant electrical cables suitable for outdoor use.

Specifications:
• 3-phase input, nominal voltage 400V (±10%), frequency 50Hz.
• Power line and fans protected from overcurrent by automatic magneto-thermal circuit breaker protecting each single fan.
The dimensioning of the panel and protection is optimized for the nominal current drawn by the fans, on the basis of the type of connection (Triangle or Star).
• Power line protected from overcurrent by fuses.
• Overtemperature thermal contact and automatic magneto-thermal circuit breaker signals for each fan connected to terminal block.
• Compliant with Standards EN 60204-1 and EN 61439-1.
• Compliant with European Low Voltage Directive 2006/95/EC.

Qm

ELECTRICAL PANEL WIRING FOR SINGLE-PHASE MOTORS

Overview:
• Mounted and wired panel
• Box made of UV-resistant plastic, IP55 degree of protection (EN 60529).
• Operating temperature -25 °C / +60 °C.
• UV resistant electrical cables suitable for outdoor use.

Specifications:
• Single-phase input, nominal voltage 230V, frequency 50Hz.
• Green power ON indicator.
• Power line protected from overcurrent by automatic magneto-thermal circuit breaker.
• Power line protected from overcurrent by fuses.
• Speed regulator terminal block
• Volt-free contact for remote ON/OFF command
• Compliant with Standards EN 60204-1 and EN 61439-1.
• Compliant with European Low Voltage Directive 2006/95/EC.

Q

ELECTRICAL PANEL WIRING

Overview:
• Mounted and wired panel
• Box made of UV-resistant plastic, IP55 degree of protection (EN 60529).
• Operating temperature -25 °C / +60 °C.
• Lockable hatch.
• Lockable yellow/red main switch.
• Green power ON indicator.
• Red fault warning light (fan AC motors fault, EC motors regulator fault)
• UV resistant electrical cables suitable for outdoor use.

Specifications:
• 3-phase input, nominal voltage 400V (±10%), frequency 50Hz.
• 24V auxiliary circuit input, frequency 50Hz.
• Power line protected from overcurrent (fuses for AC fans, automatic magneto-thermal circuit breaker for EC fans.
N.B.: the dimensioning of the AC fans panel and protection is optimized for the nominal current drawn by the fans, on the basis of the type of connection (Triangle or Star).
• Fans protected from overloads (heat-probes for AC fans, built-in fail-safe for EC fans.
(In the case of a fault on an AC fan, all the fans will stop; in the case of a fault on an EC fan, only the faulty fan will stop).
• Speed regulator terminal block.
• Power line protected from overcurrent by fuses.
• "By-pass" function (only for EC fans): in the case of a regulator fault, to prevent plant shutdowns, the fans automatically start running at max. speed.
• Volt-free contact for remote ON/OFF command.
• Volt-free contact for additional thermostat (if fitted).
• Volt-free contact for fan fault signal.
• Compliant with Standards EN 60204-1 and EN 61439-1.
• Compliant with European Low Voltage Directive 2006/95/EC. Compliant with European Low Voltage Directive 2006/95/EC.

E2

ELECTRICAL PANEL WIRING WITH BUILT-IN SERVICE SWITCHES (1 FOR EVERY 2 FANS)

Overview:
• Mounted and wired panel
• Box made of UV-resistant plastic, IP55 degree of protection (EN 60529).
• Operating temperature -25 °C / +60 °C.
• Lockable hatch.
• Lockable yellow/red main switch.
• Fan enabling buttons with green luminous ON indicator (1 for each pair of fans).
• Fans rearming button with green luminous power indicator. The rearming button starts the fans enabled.
• Operating/maintenance lockable selector: enables/disables the fans enabling buttons.
• Red fault warning light (fan AC motors fault, EC motors regulator fault).
• UV resistant electrical cables suitable for outdoor use.

Specifications:
• 3-phase input, nominal voltage 400V (±10%), frequency 50Hz.
• 24V auxiliary circuit input, frequency 50Hz.
• Power line protected from overcurrent (fuses for AC fans, automatic magneto-thermal circuit breaker for EC fans).
N.B.: the dimensioning of the AC fans panel and protection is optimized for the nominal current drawn by the fans, on the basis of the type of connection (Triangle or Star).
• Fans protected from overloads (heat-probes for AC fans, built-in fail-safe for EC fans.
(In the case of a fault, only the two fans where the fault is will stop).
• Speed regulator terminal block.
• Power line protected from overcurrent by fuses.
• "By-pass" function: in the case of a regulator fault, to prevent plant shutdowns, the fans automatically start running at max. speed.
• Volt-free contact for remote ON/OFF command.
• Volt-free contact for ON signal.
• Volt-free contact for fan fault signal.
• Volt-free contact for speed regulator fault signal.
• Volt-free contact to switch out "by-pass" function.
• Compliant with Standards EN 60204-1 and EN 61439-1.

E

cablaggio in quadro elettrico con interruttori di servizio integrati

ELECTRICAL PANEL WIRING WITH BUILT-IN SERVICE SWITCHES (1 PER FAN)

Overview:
• Mounted and wired panel
• Box made of UV-resistant plastic, IP55 degree of protection (EN 60529).
• Operating temperature -25 °C / +60 °C.
• Lockable hatch.
• Lockable yellow/red main switch.
• Fan enabling buttons with green luminous ON indicator (1 for each fan).
• Fans rearming button with green luminous power indicator. The rearming button starts the fans enabled.
• Operating/maintenance lockable selector: enables/disables the fans enabling buttons.
• Red fault warning light (fan AC motors fault, EC motors regulator fault).
• UV resistant electrical cables suitable for outdoor use.

Specifications:
• 3-phase input, nominal voltage 400V (±10%), frequency 50Hz.
• 24V auxiliary circuit input, frequency 50Hz.
• Power line protected from overcurrent (fuses for AC fans, automatic magneto-thermal circuit breaker for EC fans).
N.B.: the dimensioning of the AC fans panel and protection is optimized for the nominal current drawn by the fans, on the basis of the type of connection (Triangle or Star).
• Fans protected from overloads (heat-probes for AC fans, built-in fail-safe for EC fans.
(In the case of a fault, only the faulty fan will stop).
• Speed regulator terminal block.
• Power line protected from overcurrent by fuses.
• "By-pass" function: in the case of a regulator fault, to prevent plant shutdowns, the fans automatically start running at max. speed.
• Volt-free contact for remote ON/OFF command.
• Volt-free contact for ON signal.
• Volt-free contact for fan fault signal.
• Volt-free contact for speed regulator fault signal.
• Volt-free contact to switch out "by-pass" function.
• Compliant with Standards EN 60204-1 and EN 61439-1.
• Compliant with European Low Voltage Directive 2006/95/EC.

D

DIGITAL INTELLIBOARD

Description:
Designed to continuously and homogeneously regulate the speed of EC motors using MODBUS RS485 serial communication protocol, as well as control and run diagnostics on on-board systems (adiabatic systems, pressure, temperature and humidity sensors, UV lamps).
With the technology used on Electronic Commutation (EC) fans, operation is versatile and optimal with the consequent energy savings and noise reduction.
Any faults/anomalies are univocally identified in a detailed way.
The control panel is supplied installed, wired, programmed and ready-to-use.

Overview:
-Box made of UV-resistant plastic, IP55 degree of protection (EN 60529).
• Operating temperature -25 °C / +60 °C.
• CAREL 4.3” colour touchscreen with screen protector.
• CAREL (PLC) programmable logic controller.
• Lockable hatch.
• Lockable yellow/red main switch.
• Operating/maintenance lockable selector: isolates the fan power lines.
• ON/OFF button with green status indicator.
• Red fault indicator.
• UV resistant electrical cables suitable for outdoor use with multipole quick-fit (FLEXI) connectors on panel.
• Temperature or pressure sensors installed and wired.

Technical data:
• 3-phase input, nominal voltage 400V (±10%), frequency 50Hz.
• 24V auxiliary circuit input, frequency 50Hz.
• Power line protected from overcurrent by automatic magneto-thermal circuit breaker (for each group of fans).
• Built-in fan overload protection (in the case of a fault, only the faulty fan will stop).
• "By-pass" function: in the case of a communication BUS malfunction, to prevent plant shutdowns, the fans automatically start running at the max. set speed.
• Volt-free contacts for controlling PLC remotely.
• Volt-free contacts for fan malfunction alarm signals.
• Programmable volt-free contacts.
• Compliant with Standards EN 60204-1 and EN 61439-1.
• Compliant with European Low Voltage Directive 2006/95/EC.
• UL certification, CSA certification available on request.

Functions:
• Proportional-Integral-Derivative heat regulation.
• For remote control (reference: speed or temperature/pressure setpoint) with 0-10V signal or field BUS.
• Limits fan rotation speed (ex. to limit noise levels during the night).
• Enables anticlockwise fan running to clean finned heat exchangers.
• Sends an analog 0-10V signal proportional to fan speed (0-100%).
• Update software with USB stick, without using a PC.
• Optional: for regulating 2 independent fan banks separately and independently (ex. different rotation speeds).
• Optional: Ethernet connection (ex. control parameters on a web page, remote assistance from the works, software update, etc.).
• Optional: sends an e-mail to max. 10 users for each alarm event (if the e-mail addresses have been registered in the PLC memory and the system is connected to Ethernet).

Connectivity
Full remote control (over 900 parameters available) through field BUS (standard: MODBUS RS485; on request: LonWorks®, BACnetTM, SNMP, Konnex®). Optional: sends an e-mail to max. 10 users for each alarm event (if the e-mail addresses have been registered in the PLC memory and the system is connected to Ethernet).

Connectivity
Full remote control (over 900 parameters available) through field BUS (standard: MODBUS RS485; on request: LonWorks®, BACnetTM, SNMP, Konnex®).

REFRION S.r.l. Vicolo Malvis, 1 - 33030 Flumignano di Talmassons (UD) - P.IVA 03094850231

DRY COOLER | GAMMA DRY COOLER