Description

REC D9: heat recovery unit with aluminium counter-flow heat exchanger, with Eff. > 90%

• execution with frame made of aluminium profiles
• double panels filled with rock wool heat and acoustic insulation th. 25 mm
• external panels in pre-painted sheet metal, interior in galvanised steel
• EC high efficiency centrifugal fans
• temperature probes
• integrated by-pass for free-cooling / free-heating (manual, motorised or automatic operation)
• M5 (ISO ePM10 50%) and F7 (ISO ePM1 70%) filters, removable from below in the horizontal ceiling version
• control board on the machine
• integrated frost protection
• working temperature 0°C and 45°C

Remote controls

3V EVO:

• on / off
• 3-speed selection
• by-pass (opening/closing) alert with automatic control
• frost protect alert
• dirty filters alert (with counter)
• probe malfunction alert
• can be installed in type 503 horizontal box
• possibility of automatic control of antifreeze heater, including 2 stages
• possibility of controlling the unit with simple digital inputs (on-off and remote speeds)

LCD (white):

• LCD display
• integrated temperature / humidity probes
• selectable fan speed control:

- 3 preset manual speeds (can be changed from 10% to 100%)

- automatic (depending on humidity or air quality or temperature or other external probes)

- diversify the speed of the inlet and expulsion fan

• can be installed in type 503 horizontal box
• automatic by-pass control
• frost protection with "pre-heating" coil management
• post-heating battery management with 0-10 Volt signal
• active alarms and alarm history
• clogged filter alarm
• hourly / weekly programming
• possibility of controlling the unit with simple on-off inputs through the control board:

- on-off contacts (speed - summer-winter)

- pairing with external probes 0-10 Volt

• ModBus on RS485
• pre-configuration for additional modules (Lan, RS485, RS232, GSM)