Heat recovery unit
UTNR-T FRESHFresh air units with counterflow static heat recovery. Class A1 mineral wool insulation.
Features
Key features
High efficiency heat recovery
Low-noise Brushless EC fans
F7 and M5 high efficiency filters
Sandwich panels – thickness 40 mm
Mineral wool insulation class A1 fire reaction
Compact size
Competitive solution
Description
Construction features
• Recovery unit: very high efficiency static heat recovery, with aluminum plates with counter-current flows.
• Fans: supply and exhaust fans with highly efficient EC Brushless electric motors with 6 speeds.
• Structure: insulating sandwich panels 40mm thick. Coated externally in corrosion-resistant pre-painted galvanised steel and internally in galvanised steel. Insulation in mineral wool with high thermal and acoustic properties. Fire reaction class A1.
• Air tightness: EPDM gaskets on the panels and balloon gaskets on the inspection doors to ensure full air tightness.
• Stainless steel condensate drain pan, fully integrated in the panel. Side connection drain.
• Filters: compact cell filters with low pressure drop polypropylene media, removable from the side, with ISO ePM10 50%(M5) + ISO ePM1 50% (F7) class efficiency on supply side and ISO ePM10 50% (M5) on exhaust side.
• Factory-installed dirty filter differential pressure switches.
• Integrated defrosting / free-cooling by-pass system. Thanks to the presence of a motorised damper on the heat recovery side, a bypass system can be created to manage freecooling or defrosting depending on thermo-hygrometric requests.
• Integrated control system with electrical box, regulator and user panel that can be remote-controlled up to 100m. No additional power and protection components required.
Separately supplied accessories
• KBEP - Single stage electric heater with antifreeze/pre-heating function, complete with safety thermostat.
• KBER - 3-stage post-heating electric heater, complete with safety thermostat.
• KBA - 2 rows hot water post-heating coil.
• KC5H1 - 5-rows water cooling coil and 1-row water post-heating coil.
• KSRE - Damper with ON/OFF servo control.
Controls
• Mode selection (Auto Heat, Auto Cool, Man. Heat, Man. Cool, Fan Mode).
• Room temperature measurement thanks to the probe integrated in the user panel.
• Fans speed control with 0-10V signal at 6 speed steps.
• Heat recovery bypass management in antifreeze/freecooling/freeheating mode.
• Weekly and daily programming.
• Modbus RTU serial interface via RS485 connection.
• Dirty filter monitoring.
• Automatic restart after power failure.
• Automatic fans speed control based on air quality probe (optional).
• Automatic electrical coil management by steps (optional).
• Management of heating/cooling/summer dehumidification functions (optional).
• Management of ON/OFF or modulating water coils valves (optional).
• Management of ON/OFF dampers (optional).
Technical data
| MODEL UTNR-T FRESH | 40 | 60 | 80 | 100 | 150 | 205 | 260 | 330 | ||||
| Supply filters | M5 + F7 | M5 + F7 | M5 + F7 | M5 + F7 | M5 + F7 | M5 + F7 | M5 + F7 | M5 + F7 | ||||
| Return filters | M5 | M5 | M5 | M5 | M5 | M5 | M5 | M5 | ||||
| TECHNICAL SPECIFICATIONS | ||||||||||||
| Nominal air flow rate | m³/h | 400 | 600 | 800 | 1000 | 1500 | 2050 | 2600 | 3300 | |||
| STANDARD FANS | ||||||||||||
| Motor type | EC | EC | EC | EC | EC | EC | EC | EC | ||||
| ❶ | Supply available static pressure | Pa | 75 | 75 | 100 | 100 | 100 | 125 | 125 | 150 | ||
| ❷ | Specific fan power (SFP) | W/(m³/s) | 570 | 611,2 | 578,6 | 576,1 | 844,8 | 586,2 | 589,8 | 628,5 | ||
| ❸ | Sound pressure level | dB(A) | 35 | 43 | 35 | 41 | 52 | 46 | 51 | 53 | ||
| Speed No./Control Type | 6 / 0-10V | 6 / 0-10V | 6 / 0-10V | 6 / 0-10V | 6 / 0-10V | 6 / 0-10V | 6 / 0-10V | 6 / 0-10V | ||||
| Power supply | V-ph-Hz | 230-1-50 | 230-1-50 | 230-1-50 | 230-1-50 | 230-1-50 | 230-1-50 | 230-1-50 | 230-1-50 | |||
| COUNTERFLOW HEAT RECOVERY | ||||||||||||
| ❹ | Winter Efficiency | % | 88,5 | 88,5 | 87,4 | 87,6 | 88,6 | 88,7 | 89,2 | 88,6 | ||
| ❺ | Summer Efficiency | % | 82,8 | 82,8 | 80,9 | 81,3 | 83,4 | 83,6 | 84,2 | 83,5 | ||
| ❻ | Efficiency EcoDesign CE 1253/2014 | % | 82,9 | 82,9 | 81 | 81,4 | 83,5 | 83,7 | 84,3 | 83,6 | ||
| OPERATING LIMITS | ||||||||||||
| Outdoor air inlet temperature limit | °C | -24<T<46 | -24<T<46 | -24<T<46 | -24<T<46 | -24<T<46 | -24<T<46 | -24<T<46 | -24<T<46 | |||
| DIMENSIONS AND WEIGHTS | 40 | 60 | 80 | 100 | 150 | 205 | 260 | 330 | ||||
| Length | mm | 721 | 845 | 915 | 965 | 1015 | 1290 | 1720 | 1780 | |||
| Height | mm | 397 | 397 | 479 | 479 | 618 | 618 | 618 | 759 | |||
| Depth | mm | 1346 | 1346 | 1638 | 1638 | 1937 | 1937 | 1937 | 2219 | |||
| ❼ | Weight | kg | 92,3 | 104,2 | 137,3 | 144,5 | 193,9 | 233,1 | 291 | 368,3 | ||
| Connections drain pan | inch | 3/4″ | 3/4″ | 3/4″ | 3/4″ | 3/4″ | 3/4″ | 3/4″ | 3/4″ |
- Data at the following conditions:
- ❶ Values refer to the nominal air flow rate considering the pressure drops of the unit without accessories.
- ❷ Data according to CE 1253/2014 at nominal air flow rate and available static pressure without accessories.
- ❸ Sound pressure level at 1 m distance in open field.
- ❹ Winter conditions: outdoor air -5ºC, 80% RH and room air 22ºC, 50% RH.
- ❺ Summer conditions: outdoor air 35ºC, 40% RH and room air 24ºC, 50% RH.
- ❻ Values refer to CE 1253/2014 at balanced air flow rates.
- ❼ Unit weight without accessories.
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Technical notes
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