Energy Heat Recovery Unit The Energy ducted units have been designed to allow energy savings in the ventilation systems of public and private environments, such as bars, restaurants, offices, shops, etc., by recovering the heat from the air discharged and transferring it to the fresh air introduced into the environment. The heat exchange between the discharged air and the fresh air introduced occurs via a static cross-flow coil, designed to recover over 50 of the heat. The Energy range features 6 sizes suitable for horizontal installation (1 to 6) and 5 sizes for vertical installation (2 to 6), covering a range of air flows from 400 to.500 m /h. In the following pages the horizontal version is shown. 1
Technical characteristics of the main components: Support frame: is made of galvanized plate sandwich panels, 24 mm thick, filled with high-density polyurethane that combine thermal and acoustic insulating features. Size, on the other hand, uses both sandwich panels and self-supporting panels insulated with foam material. The side panels are easily removable, allowing the position of the air inlet and outlet to be modified, even on site. Heat recovery: the heat recovery units are static plate coils that transfer heat between two flows of air due to the temperature difference. Being static, there are no moving parts. This is a guarantee of very high reliability and operating safety. The two flows of hot and cold air entering the heat recovery unit are sub-divided into sections that run between two plates, which carry hot air and cold air alternatively. These sections are sealed to prevent any possible contamination between the air flows. The heat is exchanged by the plates that make up the walls of the sections, with that reaches values between 50 and 75. To increase the efficiency of the coil, the surfaces of the plates are fitted with special swirlers. Condensate collection tray: with drain connection on the side (external dia. 14 mm). Fan assembly: the discharge and intake air fans are double intake with forward blades. The rotor is directly coupled to the electric motor, reducing the overall size. Single-phase motor, 20 V power supply with built-in motor protection, three speeds on all models. Air pleated cell filters, 48 mm thick, efficiency G, with filtering media made from regenerable synthetic material, class F1. The filters can be removed from below after having removed the bottom panel of the unit. Post-Heating coil (optional): built on a special galvanised plate frame, expanded /8 copper pipes, aluminium fins with 2.1 mm fin spacing, brass manifolds. 2
Dimensions and Weight X M C 60 A 80 B 80 K W 150 Z Y Z D H N W Z 85 C C 85 D D C H SIZE 1 2 4 5 6 DIMENSIONS mm A B H C D M N W X Y Z P K 100 1480 1480 1480 1750 1750 80 1000 1000 1000 285 420 480 480 540 540 27 16 16 16 470 470 201 204 264 264 25 25 97 208 208 262 262 290 22 22 22 22 298 1 207 45 45 207 244 244 244 21 21 98 161 161 188 188 202 14 200 27 27 585 585 585 740 740 WEIGHT Kg 41 85 9 105 140 155 NOTE = is only available in horizontal model.
ENERGY TECHNICAL SPECIFICATIONS without Post-heating coil Working static pressure = 50 Pa MODEL ENY High speed Sound pressure ( * ) m /h db(a) 620 54 1200 56 1450 58 2150 62 2500 60 800 64 Medium speed Sound pressure ( * ) m /h db(a) 55 52 940 52 1080 5 1690 58 160 58 2800 60 Low speed Sound pressure ( * ) m /h db(a) 65 49 780 49 840 48 1040 51 1270 48 220 56 HEAT RECOVERY ENY High speed Efficiency (-5 / 20) 54.6 8.6 54.2 8.5 54.5 8.6 51.9 7.9 58.2 9.5 51.1 7.8 Medium speed Efficiency (-5 / 20) 55. 8.8 55.6 8.9 56.4 9.1 5.5 8.4 60.8 10.2 5.5 8.4 Low speed Efficiency (-5 / 20) 57.1 9. 56.6 9.2 58.0 9.5 56.6 9.2 62. 10.6 55. 8.8 ( ) = Sound pressure measured in an open field at a distance of 1 metre from the fan outlet. * NOTE = is only available in horizontal model. with Post-heating coil Operation at high speed Working static pressure = 50 Pa MODEL ENY m /h 580 1080 170 2020 2400 600 HEAT RECOVERY ENY Efficiency (-5 / 20) 54.9 54.8 54.9 52.4 58.4 51.5 8.7 8.7 8.7 8.1 9.6 7.9 POST-HEATING WATER COIL ENY Rows N Emission (air 8 water 70/60) kw 5.92 11.7 15.9 20.4 25.5 4.9 7.1 8.8 41.2 6.8 8.2 5.6 Air side pressure drop (coil) Pa 45 6 28 5 42 64.7 Water side pressure drop kpa 6 7 14 22 19 5,5 Diameter of threaded male connections Ø NOTE = is only available in horizontal model. 4
Accessories CCS Connecting duct for cooling section Made from galvanized steel with closed cell insulation. SB4 Cooling section with 4 row coil (for horizontal units only) SFE Auxiliary electrostatic filter section BCR Condensate tray for cooling section BER Electric post-heating coil (for 6 only) To be installed inside the unit, downstream the recovery unit on the fresh air flow. The coil is provided with an automatic reset safety thermostat and a manual reset safety thermostat. PMR Flanges with spigots The accessory is made of a flange to be coupled to the rectangular inlets and outlets so as to allow the coupling with round ducts. The kit provides no. 4 flanges per unit. 5
Accessories SFR Kit with F6 filters (for -6 only) Special F6 filters in micro-pleated fibreglass. Controls COM Speed switch Remote manual speed control. Switch with 4 positions: - OFF - low speed - medium speed - high speed CIF Speed switch and switch for the electrostatic filter 6
The descriptions and illustrations provided in this publication are not binding: Sabiana reserves the right, whilst maintaining the essential characteristics of the types described and illustrated, to make, at any time, without the requirement to promptly update this piece of literature, any changes that it considers useful for the purpose of improvement or for any other manufacturing or commercial requirements. Sabiana s.p.a. via Piave, 5 20011 Corbetta Milano Italy phone +9.02.9720.1 r.a. / +9.02.97270429 /+9.02.97270576 fax +9.02.9777282 / +9.02.9772820 www.sabiana.it info@sabiana.it EN-LT-EN-07-14 7