Heat recovery unit

UTNR-HP 035÷450

Air flow rate: 350÷4.500 m³/h

WEBCODE: UTHP1

Product benefits

  • Combined crossed flow and active thermodynamic heat recovery
  • Standard air filter with G4 efficiency
  • Integrated electronics
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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 double intake centrifugal expulsion 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.


UTNR-HP MODEL
Nominal air flow m³/h
Available delivery static pressure Pa
Available return static pressure Pa
Sound pressure level db (A)
Max available delivery static pressure - Version E Brushless Pa
Max available return static pressure - Version E Brushless Pa
FUNCTIONAL LIMITS
Standard configuration winter limit operating conditions °C / %
Winter limit operating conditions with KRMS accessory °C / %
Summer limit operating conditions °C / %
Flow rate variation field %
ELECTRICAL SPECIFICATIONS
Electrical supply V/ph/Hz
Max. absorption A
PERFORMANCE IN HEATING MODE
Static recovery efficiency %
Active recovery W
Total power W
Treated air temperature °C
Overall COP W/W
PERFORMANCE IN COOLING MODE
Static recovery efficiency %
Active recovery W
Total power W
Treated air temperature °C
Overall EER W/W
DIMENSIONS AND WEIGHTS
Length/Height/Depth mm
Weight Kg
35 60 100 150 230 320 450
350 600 1000 1500 2300 3200 4500
165 170 195 155 155 185 175
140 100 140 95 95 115 110
59/47/52 64/50/55 62/49/54 67/54/57 65/51/59 68/54/59 70/56/59
270 285 295 290 365 265 270
245 215 240 230 305 195 205
35 60 100 150 230 320 450
MIN -10°C OUT & MIN 19°C 50% IN
MIN -20°C OUT & MIN 19°C 50% IN
MAX 38°C 50% OUT & MAX 27°C IN
-10 ÷ +10
35 60 100 150 230 320 450
230/1/50 230/1/50 230/1/50 230/1/50 400/3/50 400/3/50 400/3/50
5,3 9 13,2 20,2 10 15,4 16,4
35 60 100 150 230 320 450
62 51 50 50 50 50 50
1740 2960 5010 7690 11090 16300 17300
3580 5790 9410 14390 21190 30260 36010
24 23 22 22 22 22 18
10,9 9,6 9,22 8,64 8,9 9,9 12,6
35 60 100 150 230 320 450
56 50 50 50 50 50 49
1810 2860 4890 7270 10580 15310 16990
2210 3450 5840 8720 12830 18390 21440
19 20 20 20 20 20 21
4,2 3,9 4,2 3,9 3,9 4,1 5,01
1540/370/1240 1540/370/1240 1840/410/1440 1840/500/1440 2040/550/1690 2040/650/1690 2240/710/1890
122 125 185 228 267 281 329

Data at the following conditions:

Sound pressure level assessed at 1 m from: permanent ducted socket/intake socket/compressor compartment. Generally, the operating noise level differs from the indicated values depending on the operating conditions, reflected noise and peripheral noise.

Referred to the nominal flow rate.

Outdoor air -5°C RH 80%; ambient air 20°C RH 50%.

Excluding power consumption for ventilation.

Outdoor air 32°C RH 50%; ambient air 26°C RH 50%.