HRV

An HRV is a controlled ventilation system that helps reduce high humidity, pollutants and odours by replacing stale air with fresh warm air.

Exhaust air is not only stale and damp, but (providing there is existing heating in the home) warmer than the outdoor temperature. It is this warmth that is used to pre-heat fresh air as it enters your home. By the natural laws of physics, whenever cold air is warmed, relative humidity is reduced, and condensation control is the result. The two air streams are 100% separated at all times. The outdoor air introduced helps create a dryer, healthy, indoor environment.

Our HRV recovers up to 5 times more energy than it costs to operate. This level of efficiency is unmatched by any other domestic appliance.

Unlike other condensation control devices, HRVs perform best when conditions are at their worst. Sunshine, a warm roof space or heating elements, are unnecessary. HRVs are designed to ventilate, 24 hours a day, every day, and once the ventilation rate is set, require no further adjustment.

Listed below.

HRV UNIT MODEL: HP 035÷450

AIR FLOW RATE: 350÷4.500 M³/H

WEBCODE: UTHP1

Fresh air terminal units with two-stage heat recovery unit.

Construction features

• Recovery unit:
- First stage of the crossed flow air-air static heat recovery with aluminium heat exchanger plates; lower condensate drain pan along the entire heat treatment area.
- Second stage of the active thermodynamic heat recovery unit with heat pump cooling circuit (with R410A gas) consisting of hermetic compressor (rotary or scroll type depending on the size of the machine), evaporating and condensing coils with copper pipes and continuous aluminium fins, electronic expansion valve, liquid separator and receiver, 4-way valve for cycle inversion, high and low pressure switches, Freon filter and liquid indicator.
• Fans: fresh air inlet and dual intake centrifugal exhaust type with a directly coupled electric motor. Fan unit installed on anti-vibration mountings to prevent the transmission of vibration.
• Structure and panels: frame made with extruded aluminium profile, Anticorodal 63 alloy, with preloaded nylon angular joints. Sandwich buffer panels, 23 mm thick, made internally with galvanised sheet steel and externally with galvanised pre-painted sheet steel (RAL 9002), with thermal and acoustic insulation made of injected polyurethane, with a density of 45 kg/m3.
• Filtering section: consisting of two class G4 filters (one on the fresh air intake and one on the ambient inlet), both can be removed from the bottom and side.
• Electrical panel: with integrated regulation and power; NTC temperature probes on both the delivery and return air circuits; micro-processor electronic control for automatic room temperature management, winter/summer switch and thawing cycles; remote control of panel up to 20 m from the unit,

Versions

Available orientation:
• UTNR-HP 01, 02 - Heat recovery unit with crossed flow and active thermodynamic double heat exchanger with 01 or 02 orientation (right connection side) or 01s or 02s (left connection side).
The selected orientation must be specified to process the job order.
Installation
• EXT - Protective roof for outdoor installation.

Factory fitted accessories

• BER - Internally installed filament type reheating electrical resistance, complete with safety thermostats and control relays. 230/1/50 single-phase for models 035÷150. 400/3/50 three-phase for models 230÷450.
• BEP - Internally installed filament type reheating electrical coil, complete with safety thermostats and control relays. 230/1/50 single-phase for models 035÷150. 400/3/50 three-phase for models 230÷450.
• PF - Differential pressure switch installed on the inlet filter to indicate a dirty filter.
• ATG - Antifreeze thermostat installed downstream of the water coil.
• EG4PF - G4 outdoor air filter with differential pressure switch.
• ERG4PF - G4 outdoor air filter and G4 return air with differential pressure switch.
• EF7 - F7 outdoor air filter.
• ERF7 - F7 outdoor and return air filter.
• EG7PF - F7 outdoor air filter with differential pressure switch.
• ERF7PF - F7 outdoor and return air filter with differential pressure switch.

Separately supplied accessories

• KSBFR - Section containing hot/cold water coil for reheat or recool, placed outside the machine in front of the inlet. Includes a stainless steel condensate drain pan with drain connection from the bottom.
• KSBFR + ATG - Hot/cold water coil section with mounted antifreeze thermostat.
• KV2V ON/OFF - 2 way valve kit with On/Off servo-control.
• KV3V ON/OFF - 3 way valve kit with On/Off servo-control.
• KSRE230 - Regulation damper consisting of a galvanised sheet steel frame with adjustable fins, equipped with 230V ON/OFF servo-control.
• KSME230R - Regulation damper consisting of a galvanised sheet steel frame with adjustable fins, equipped with 230V ON/OFF servo-control with spring return.
• KSSC - Duct silencer with wool baffles covered with glass fibre and micro-stretched sheet steel.
• KRMS - 3-damper section for operation with outdoor air at low temperature up to -20°C, with modulating servo-controls.

Controls supplied separately

• KTUP - Additional user terminal, with remote control up to 50 m, for wall mounting.
• KSCMB - Modbus serial board.

HRV UNIT MODEL: A PLATINUM 040÷500

AIR FLOW RATE: 400
4.700 M³/H:
WEBCODE: UTNR3

Fresh air terminal unit with counterflow opposing flow static heat recovery.

Construction features

• Recovery unit: very high yield static type with aluminium plates with back-current flows with close step. Extraction of side exchange pack from top or bottom depending on models and versions
• Fans: fresh air inlet and forward blade dual intake centrifugal exhaust type with a directly coupled electric motor; optionally, EC Brushless technology high efficiency electric motors. Fan unit installed on anti-vibration mountings to prevent the transmission of vibration to the structure. The EC fans can be factory set for operation with constant flow rate (specification to be provided in order)
• Structure: frame made with extruded aluminium profile with preloaded nylon joints. Sandwich buffer panels, 23 mm thick, made with galvanised sheet steel on the inside and pre-painted on the outside with thermal and acoustic insulation made of injected polyurethane, with a density of 45 kg/m3.
• Filtering section: filtration sections made of compact cell filters with low pressure drop polypropylene media, removable from the side, with ISO 16890 ePM1 55% efficiency class ( F7 EN 779) in fresh flow and ISO 16890 ePM10 55% ( M5 EN 779) in exhaust flow.
• Factory-installed dirty filter differential pressure switches
• Condensate drain pan made of galvanised sheet steel with condensate drain connection from the bottom.
• Integrated free cooling or thawing by-pass system. Thanks to the presence of a motorised damper next to the heat recovery, a bypass system can be created to manage freecooling or thawing depending on thermohygrometric needs or conventions

Versions

• UTNR-A/O PLATINUM - Recovery unit with opposing flow heat exchanger, horizontal installation and with standard multi-speed fans
• UTNRE-A/O PLATINUM - Recovery unit with opposing flow heat exchanger, horizontal installation and with Brushless EC fans that reduce power consumption for ventilation at equal performance.
• UTNR-A/V PLATINUM - Recovery unit with opposing flow heat exchanger, installed vertically and with standard multi-speed fans
• UTNRE-A/V PLATINUM - Recovery unit with opposing flow heat exchanger, installed vertically and with Brushless EC fans that reduce power consumption for ventilation at equal performance.
Available orientation
• 01 - Right-hand connections
• 02 - Left-hand connections
The selected orientation must be specified to process the job order.
Installation
• EXT- Outdoor installation including rain cover, 80 mm-high base and an outdoor electrical box (the kit does not include the roof for any additional accessory modules)

Factory fitted accessories

• BER - PRE-POST - Pre-heating electrical resistance (no frost function) installed inside, complete with filament-type safety thermostats and control relays to contain pressure drops.
For each size you may choose between 2 available power outputs
• BA - Internal hot water reheating coil.
• BAATG - Antifreeze thermostat installed downstream of the water reheating coil.
• ERF7-F7 efficiency return filter

Separately supplied accessories

• KSBFR - Section containing hot/cold water coil to reheat or recool, placed outside the machine in front of the intake vent. Includes stainless steel condensate drain pan with drain connection from the bottom.
• KSBFR + ATG - Hot/cold water coil section with mounted antifreeze thermostat.
• KSRE - Regulation damper set up for servo-control, consisting of a galvanised sheet steel frame with adjustable fins.
• KSSC - Duct silencer with a rectangular base made of glass wool covered with a protective film of glass fibre and micro-stretched sheet metal.
• KRMS - Section with three dampers for air mixing and recirculation (only for horizontal installation).
• KSPC - 4 circular connections

Controls

• KCV2 - Speed selector for wall mounting installation, to select from 3 speeds: Off/heating/cooling switch; 3-speed switch; 230V power supply.
• PCU - Control panel for wall mounting installation, allows the winter/summer environment temperature to be controlled, gives consent to activate or exclude the water coil (ON/OFF Valves control) or the electrical resistance. Selects the operating speed of the fan between minimum, medium, maximum and controls the freecooling function.
• PCU - Control panel for wall mounting installation, allows the winter/summer environment temperature to be controlled, gives consent to activate or exclude the water coil (ON/OFF Valves control) or the electrical resistance. Selects the operating speed of the fan through 0/10 V adjustment and controls the freecooling function.
• KPCUEM - adds a board to interface Modbus with BMS to the KPCUE control functions.
Full Controls
• KRFCS - Electrical panel complete with: DDC programmable microprocessor regulator. BMS interfacing Integrated as standard with Modbus RTU protocol, main disconnecting switch, relay to control various users, terminal blocks for quick connection of all machine components, auxiliary circuit supply with suitable transformer 230/12-24V.
USER PANELS (for KRFCS)
• KHMIG -Interface terminal with black monochrome graphic display with LED backlighting.
• KHMIR - Interface terminal complete with integrated room temperature probe with black monochrome graphic display with LED backlighting.
• KCW - White decorative plate for control panel.
• KCB - Black decorative plate for control panel.
• KWMS - Wall mounting installation support for control panel.Valves and actuators
• KV3V - PN40 Mixer/diverter 3-way regulation ball valves, female threaded hydraulic connections.
• KV2V - PN40 2-way regulation ball valves, female threaded hydraulic connections.
• KVMM - Actuator for ball regulation valves with modulating control 0/10 Vdc 24 Vac power supply.
• KV0M - Actuator for 230V On/Off valves.
• KDMA-S - Actuator for modulating damper 0-10V 24V with spring return.
• KDMA - Actuator for modulating damper 0-10V 24V without spring return.
• KDOA - Actuator for ON/OFF damper with spring return.
All the probes, actuators and valves on the Full Control section are also available.


HRV UNIT MODEL: HE PLATINUM 040÷400

AIR FLOW RATE: 310÷4.250 M³/H

WEBCODE: UTHE3

Fresh air terminal unit with enthalpy rotary heat recovery.

Construction features

• Recovery unit: high yield rotary type made of aluminium with hygroscopic surface. Electric induction motor with belt and pulley transmission. Recovery unit-motor assembly easily removed from the side for periodic maintenance.
• Fans: fresh air inlet and forward blade double intake centrifugal expulsion type with a continuously adjustable directly coupled electric motor; optionally, EC Brushless technology high efficiency electric motors. Fan unit installed on anti-vibration mountings to prevent the transmission of vibration to the structure. The EC fans can be factory set for operation with constant flow (specification to be provided in order)
• Structure: frame made with extruded aluminium profile with preloaded nylon joints. Sandwich buffer panels, 23 mm thick, with galvanised sheet steel on the inside and pre-painted on the outside with thermal and acoustic insulation made of injected polyurethane, with a density of 45 kg/m3.
Integrated free cooling or thawing by-pass system. Thanks to the presence of a motorised damper on the heat recovery side, a bypass system can be created to manage the freecooling or thawing depending on requirements or mm thermohygrometric conventions, with galvanised sheet steel on the inside and pre-painted on the outside with thermal-acoustic insulation made of injected polyurethane, with a density of 45 kg/m3 offering very high thermal and acoustic insulation.
• Filtering section: filtration sections made of compact cell filters with low pressure drop polypropylene media, removable from the side, with F7 efficiency class in fresh flow and M5 in expulsion flow.
• Factory-installed dirty filter differential pressure switches
• Terminal block: already part of the machine to facilitate the electrical connections, fan controls and rotary recovery.

Versions

• UTNR-HE/O PLATINUM - Recovery unit with rotary heat exchanger, installed horizontally and with standard multi-speed fans
• UTNRE-A/O PLATINUM - Recovery unit with rotary heat exchanger, installed horizontally and with Brushless EC fans that reduce the power consumption for ventilation at equal performance.
Available orientation
• 01 - Right-hand connections
• 02 - Left-hand connections
The selected orientation must be specified to process the job order.
Installation
• EXT- Outdoor installation

Factory fitted accessories

• ERF7-F7 efficiency return filter
• BP-Bypass control for free-cooling including: NC relay on board the panel (suitable for PCU and KPCUE) and 2 NTC probes on board the machine

Separately supplied accessories

• KBER - Reheating electrical resistance installed outside in a duct dedicated module, complete with filament-type safety thermostats and control relays to contain pressure drops.
230/1/50 single-phase electrical supply for model 040 and 075. 400/3/50 three-phase for 100÷400 models.
• KSBFR - Section containing hot/cold water coil to reheat or recool, placed outside the machine in front of the intake vent. Includes stainless steel condensate drain pan with drain connection from the bottom.
• KSBFR + ATG - Hot/cold water coil section with mounted antifreeze thermostat
• KSRE - Regulation damper preset for servo-control, consisting of a galvanised sheet steel frame with adjustable fins.
• KSSC - Duct silencer with a rectangular base made of glass wool covered with a protective film of glass fibre and micro-stretched sheet metal.
• KRMS - Section with three dampers for air mixing and recirculation (only for horizontal installation).
• KSPC - 4 circular connections.

Controls

• KCV2-Speed selector for wall mounting installation, to select from 3 speeds (excluding model 40): Off/heating/cooling switch; 3-speed switch; 230V power supply.
• PCU - Control panel for wall mounting installation, allows the winter/summer environment temperature to be controlled, gives consent to activate or exclude the water coil (ON/OFF Valves control) or the electrical resistance. Selects the operating speed of the fan between minimum, medium, maximum and controls the freecooling function.
• PCU - Control panel for wall mounting installation, allows the winter/summer environment temperature to be controlled, gives consent to activate or exclude the water coil (ON/OFF Valves control) or the electrical resistance. Selects the operating speed of the fan through 0/10 V adjustment and controls the freecooling function.
• KPCUEM - Adds a board to interface Modbus with BMS to the KPCUE control functions.
• KPTZ - Rotating potentiometer for wall mounting installation, dedicated to manual fan speed control. The speed of delivery and return fans is calibrated with a single potentiometer (only for the EC Brushless fan version).
Full Controls
• KRFCS - Electrical panel complete with: DDC programmable microprocessor regulator. BMS interfacing Integrated as standard with Modbus RTU protocol, main disconnecting switch, relay to control various users, terminal blocks for quick connection of all machine components, auxiliary circuit supply with suitable transformer 230/12-24V.
Optional first start-up
User panels (for KRFCS)
• KHMIG -Interface terminal with black monochrome graphic display with LED backlighting.
• KHMIR - Interface terminal complete with integrated room temperature probe with black monochrome graphic display with LED backlighting.
• KCW - White decorative plate for control panel.
• KCB - Black decorative plate for control panel.
• KWMS - Wall mounting installation support for control panel.
Valves and actuators
• KV3V - PN40 Mixer/diverter 3-way regulation ball valves, female threaded hydraulic connections.
• KV2V - PN40 2-way regulation ball valves, female threaded hydraulic connections.
• KVMM - Actuator for ball regulation valves with modulating control 0/10 Vdc 24 Vac power supply.
• KV0M - Actuator for 230V On/Off valves.
• KDMA-S - Actuator for modulating damper 0-10V 24V with spring return.
• KDMA - Actuator for modulating damper 0-10V 24V without spring return.
• KDOA - Actuator for ON/OFF damper with spring return.
All the probes, actuators and valves on the Full Control section are also available.

HRV UNIT MODEL: E 025÷130

AIR FLOW RATE: 250÷1.300 M³/H
WEBCODE: VMC01

Fresh air terminal unit with counterflow static heat recovery.

Construction features

• Galvanised sheet steel self-bearing structure, insulated internally and externally.
• Recovery unit: thanks to a high yield static type heat exchanger with counterflows consisting of flat layers of special paper that allow total heat exchange, thereby recovering both sensitive and latent heat. The air flows are kept separate by relevant sealing.
Maintenance is easily performed on the heat exchanger and filters thanks to side extraction.
• By-pass motorised system of the recovery unit actuated automatically by the electronic control
• Air filtration in F9 efficiency class (with G3 pre-filter) on the fresh air and G3 filter on return air.
• Integrated dirty filter signal pressure switches.
• Fans: fresh air inlet and centrifugal expulsion with BRUSHLESS EC motors that allow higher efficiency to be achieved in comparison to traditional motors with energy savings of up to 60%. 10-speed management option.
• Ducting connections with plastic round fittings.
• Incorporated electrical panel with electronic board to control the free-cooling and fan functions.

Controls

• KPST- Touch screen remote control panel
• KQSW- CO2 wall sensor for fan regulation
• KUSW- Wall humidity sensor for fan regulation


Our engineers and sales representatives are readily available to discuss your HRV applications. You can also contact Revacco directly if you have any questions or requests about our HVAC systems own made and foreign supplies.