Heat recovery unit
UTNR-HE PlatinumFresh air terminal units with enthalpy rotary heat recovery.
Features
Key features
Very high efficiency hygroscopic heat recovery Eurovent Certificate
Multi-speed or Brushless EC fans
F7 and M5 high efficiency filters
Double sandwich wall with high insulation capacity
Full control kit
Description
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: outdoor air intake and forward blade dual intake centrifugal exhaust type with a directly coupled electric motor; optionally, EC Brushless technology high efficiency electric motors. The fan unit is installed on anti-vibration mountings to prevent vibrations being transmitted to the structure.
• 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. A by-pass system can be provided to manage freecooling or thawing based on requirements or thermo-hygrometric needs.
• Filtering section: filtration sections made of compact cell filters with low pressure drop polypropylene media, removable from the side, with efficiency class F7 in fresh flow and M5 in exhaust 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 rectangular baffles in mineral wool covered with a protective film of glass fibre and micro-stretched sheet metal.
• KRMS - Sections 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.
• PCUS – composed from the control unit on board of the unit + WALL LCD display , suitable for controlling units with 3-speed fans or EC Brushless
Functionality: control of the winter/summer ambient temperature, management of: water battery and antifreeze thermostat (ON/OFF or modulating valve control), electrical resistance of preheating and/or post-heating, air dampers, freecooling of heat recovery, air filter pressure switches, CO2 or Humidity sensor for automatic modulation of EC fans, integrated clock for time slot program.
• PCUSM- same functionality as PCUS card with Modbus RTU connection port
• FULL CONTROL- for a description of these controls, please refer to the relevant page
Technical data
| UTNR-HE PLATINUM MODEL | 40 | 75 | 100 | 150 | 200 | 320 | 400 | ||||
| Outdoor air filters | F7 | ||||||||||
| Return air filters | M5 | ||||||||||
| TECHNICAL SPECIFICATIONS | |||||||||||
| Nominal air flow rate | m³/h | 310 | 640 | 1000 | 1650 | 2400 | 3200 | 3800 | |||
| STANDARD FANS | |||||||||||
| Motor type | AC | AC | AC | AC | AC | AC | n.d. | ||||
| ❶ | Nominal available static pressure | Pa | 230 | 130 | 190 | 160 | 300 | 180 | n.d. | ||
| ❶ | Maximum available static pressure | Pa | 230 | 130 | 190 | 160 | 300 | 180 | n.d. | ||
| ❷ | Specific fan power (SFP) | W/(m³/s) | 1409 | 1443 | 1580 | 1036 | 806 | 1226 | n.d. | ||
| ❸ | Sound pressure level | dB(A) | 56 | 58 | 62 | 64 | 68 | 67 | n.d. | ||
| Speed No./Adjustment Type | 3 | 3 | 3 | 3 | 3 | 3 | n.d. | ||||
| Electrical supply | V-ph-Hz | 230-1-50 | 230-1-50 | 230-1-50/60 | 230-1-50/60 | 230-1-50/60 | 230-1-50/60 | n.d. | |||
| BRUSHLESS EC FANS | |||||||||||
| Motor type | EC | EC | EC | EC | EC | EC | EC | ||||
| ❶ | Nominal available static pressure | Pa | 230 | 130 | 190 | 160 | 300 | 180 | 100 | ||
| ❶ | Max. available static pressure | Pa | 430 | 280 | 560 | 600 | 480 | 460 | 240 | ||
| ❷ | Specific fan power (SFP) | W/(m³/s) | 1045 | 1263 | 1102 | 842 | 617 | 869 | 1029 | ||
| ❸ | Sound pressure level | dB(A) | 55 | 57 | 61 | 60 | 66 | 64 | 64 | ||
| Speed No./Adjustment Type | 0-10 V | ||||||||||
| Electrical supply | V-ph-Hz | 230-1-50 | 230-1-50 | 230-1-50/60 | 230-1-50/60 | 230-1-50/60 | 230-1-50/60 | 230-1-50/60 | |||
| COUNTERFLOW HEAT RECOVERY | |||||||||||
| ❹ | Winter efficiency temp/enthalpy | % | 79/74 | 74/69 | 73/58 | 74/60 | 75/62 | 74/60 | 73,5/59 | ||
| ❺ | Summer efficiency temp/enthalpy | % | 79/69 | 74/65 | 73/59 | 75/60 | 81/65 | 75/59,5 | 73/59 | ||
| ❻ | Efficiency Regulation EC 1253/2014 | % | 74,2 | 74 | 73 | 73 | 73,7 | 74,3 | 73 | ||
| OPERATING LIMITS | |||||||||||
| Outdoor air humidity/temperature limit | °C/% | -5 | |||||||||
| Outdoor air humidity/temperature limit with KRMS accessory | °C/% | -15 | |||||||||
| Indoor air humidity/temperature limit | °C/% | +10 | |||||||||
| DIMENSIONS AND WEIGHTS | 40 | 75 | 100 | 150 | 200 | 320 | 400 | ||||
| Length | mm | 1075 | 1075 | 1205 | 1400 | 1720 | 1940 | 1940 | |||
| Height | mm | 480 | 480 | 550 | 550 | 680 | 680 | 680 | |||
| Depth | mm | 800 | 800 | 1000 | 1000 | 1290 | 1500 | 1500 | |||
| Weight | kg | 70 | 75 | 105 | 140 | 180 | 230 | 250 |
- Data at the following conditions:
- ❶ Values referred to the nominal air flow rate considering the pressure drops of the heat recovery and the F7 filter
- ❷ Values referred to the nominal air flow rate and Nominal available static pressure
- ❸ Sound pressure level referring to 1 m from the machine inlet in free field
- ❹ Outdoor air T: -5°C, 80% UR; Ambient air T: 20°C, 50% UR .
- ❺ Outdoor air T: 32°C, 50% UR; Amb. air T: 26°C, 50% UR .
- ❻ Dry nominal conditions, measured according to En 308 in balanced flows. Outdoor air 5°C D.B.; Ambient air 25°C D.B.
- ❺ Outdoor air T: 32°C, 50% UR; Amb. air T: 26°C, 50% UR .
- ❻ Dry nominal conditions, measured according to En 308 in balanced flows. Outdoor air 5°C D.B.; Ambient air 25°C D.B.
Manuals
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Technical notes
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