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Therm-X MVHRU HR95 

Technical Manual 

Page 19 of 59 

Version 2.4, 25/09/2020 

 

 

Heat recovery efficiency 

as tested to 

EN 308:1997

: 

HR95-H

 

 

 

PLEASE NOTE: 
 

-

 

Heat recovery efficiency is measured under the following conditions: 

-

 

Outdoor air conditions: -5°C / 90% 

-

 

Indoor air conditions: 20°C / 65% 

-

 

Efficiencies stated are for dry conditions 

-

 

For accurate heat recovery performance data please request a detailed software selection 

 

 

Summary of Contents for Barkell Therm X HR95

Page 1: ...MECHANICAL VENTILATION AND HEAT RECOVERY UNITS HR95 FREE STANDING UNITS TECHNICAL MANUAL Version 2 4 25 09 2020 ...

Page 2: ...RAM 12 AIRFLOW PERFORMANCE 13 HEAT RECOVERY PERFORMANCE 18 ACOUSTIC PERFORMANCE 20 TECHNICAL DATA 25 OPTIONAL COIL PERFORMANCE 27 DIMENSIONS 30 WEIGHTS 34 PACKAGED DIMENSIONS AND WEIGHTS 35 GENERIC WIRING DIAGRAM 36 CODING KEY 38 ACCESSORIES 39 SPECIFICATION 52 ...

Page 3: ...l models covering airflows from 0 06 m3 s 1 216 m3 h 1 to 1 23 m3 s 1 4428 m3 h 1 at an ESP of 200 Pa Easy access for maintenance Fully compliant with the requirements for Part L of the UK Building Regulations and the Eco design directive Quiet operation Low leakage solid 50mm thick galvanized frameless construction Painted finish for corrosion protection L1 MB casing leakage class according to BS...

Page 4: ...ar connections and factory fitted nut inserts to allow easy installation of the ductwork or dampers All units are supplied as a single piece and mounted on a steel base frame for transport and handling 2 3 ACCESS AND MAINTENANCE Access to all the units compartments is available through the tool operated access panels as standard Top access panels on the units are supported by an hydraulic support ...

Page 5: ...drops below the frost risk limit the unit controls strategy provides frost protection for the heat exchanger by bypassing some of the cold air Where it s not desirable to impact the unit operation during the frost protection strategy an electric pre heating coil frost coil can be offered to provide improved frost protection A fully removable epoxy coated galvanized steel condensate tray fitted wit...

Page 6: ...t can be offered All DX coils are tested to 46bar Both DX and WCO coils are manufactured with aluminium fins with hydrophilic coating copper tubes and assembled on a corrosion resistant galvanized casing The cooling coil section is also equipped with a plastic droplet eliminator A fully removable epoxy coated galvanized condensate tray fitted with a 22mm OD drain connection is provided for condens...

Page 7: ...ncy tested to EN 308 1997 Heat exchangers Test procedures for establishing performance of air to air and flue gases heat recovery devices Model box casing performance tested to EN1886 2007 Ventilation for buildings Air handling units Thermal transmittance of the casing T3 MB Thermal bridging of the casing TB4 MB Casing air leakage L1 MB Casing strength D2 MB Testing tolerances in accordance with C...

Page 8: ... operate your Therm X unit The controls are ready to go from the moment the unit is turned ON and can be easily configured with the help of the handheld controller provided excludes externally mounted sensors which are supplied loose and require installation and wiring by others on site Some of the features offered by the controller are listed below 2 10 1 AIRFLOW CONTROL The controls offer contin...

Page 9: ...e is necessary e g unit start up the boost mode overrides the operation of the unit and runs the fans at the maximum defined airflow for the time period determined by the user The boost mode can be enabled with the supplied handheld controller or an external switch by others Time scheduling The unit can be set to operate on a timed operation on weekly and or yearly schedules with individual settin...

Page 10: ...lation and wiring by others on site For further information about the external control functions of the Therm X controls please contact our offices 2 10 4 COMMUNICATION The unit can be set up and controlled via the handheld touchscreen controller supplied or via the BMS Handheld Controller The handheld control panel is a powerful tool for setting up and operating the Therm X units End user level f...

Page 11: ...and set up the controls to the required project design conditions For additional information about our commissioning options please contact our offices Please note Any mechanical or electrical works must be completed before our engineers attend to site to set up the controls Barkell will not perform the integration of the units to the BMS Demonstration of specific controls functionality and witnes...

Page 12: ...deck Configuration ELEVATION VIEW ACCESS SIDE 1 EC plenum fan 2 PHE with bypass damper 3 Panel filter supply G4 F7 return G4 4 Control panel 5 Condensate collection and disposal integral trap 6 Optional post heating coil Electric LPHW WCO or DX 7 Bypass damper 8 Optional electric pre heating coil Key OTA Outside air SUP Supply air ETA Extract air EHA Exhaust air ...

Page 13: ...ormance as tested to ISO 5801 2007 Installation category D HR95 080 V Vertical HR95 080 H Horizontal PLEASE NOTE Performance is shown for standard configuration with F7 supply and M5 extract filters clean filters SPI is for both fans For accurate performance data please request a detailed software selection ...

Page 14: ...tested to ISO 5801 2007 Installation category D HR95 150 V Vertical HR95 150 H Horizontal PLEASE NOTE Performance is shown for standard configuration with F7 supply and M5 extract filters clean filters SPI is for both fans For accurate performance data please request a detailed software selection ...

Page 15: ...tested to ISO 5801 2007 Installation category D HR95 250 V Vertical HR95 250 H Horizontal PLEASE NOTE Performance is shown for standard configuration with F7 supply and M5 extract filters clean filters SPI is for both fans For accurate performance data please request a detailed software selection ...

Page 16: ...tested to ISO 5801 2007 Installation category D HR95 350 V Vertical HR95 350 H Horizontal PLEASE NOTE Performance is shown for standard configuration with F7 supply and M5 extract filters clean filters SPI is for both fans For accurate performance data please request a detailed software selection ...

Page 17: ... tested to ISO 5801 2007 Installation category D HR95 450 V Vertical HR95 550 V Vertical PLEASE NOTE Performance is shown for standard configuration with F7 supply and M5 extract filters clean filters SPI is for both fans For accurate performance data please request a detailed software selection ...

Page 18: ... efficiency as tested to EN 308 1997 HR95 V PLEASE NOTE Heat recovery efficiency is measured under the following conditions Outdoor air conditions 5 C 90 Indoor air conditions 20 C 65 Efficiencies stated are for dry conditions For accurate heat recovery performance data please request a detailed software selection ...

Page 19: ... tested to EN 308 1997 HR95 H PLEASE NOTE Heat recovery efficiency is measured under the following conditions Outdoor air conditions 5 C 90 Indoor air conditions 20 C 65 Efficiencies stated are for dry conditions For accurate heat recovery performance data please request a detailed software selection ...

Page 20: ... Volume m3 h 1 Air Volume m3 s 1 ESP Pa SFP W l s 1 Casing Breakout 3m dB A 1110 0 31 200 1 90 37 833 0 23 200 1 59 33 555 0 15 200 1 48 31 1240 0 34 150 1 90 39 930 0 26 150 1 46 33 620 0 17 150 1 23 31 1350 0 38 100 1 90 41 1013 0 28 100 1 34 33 675 0 19 100 1 02 29 1440 0 40 50 1 89 43 1080 0 30 50 1 24 33 720 0 20 50 0 82 28 PLEASE NOTE Performance is shown for standard configuration with G4 F...

Page 21: ... h 1 Air Volume m3 s 1 ESP Pa SFP W l s 1 Casing Breakout 3m dB A 2485 0 69 300 1 89 34 1864 0 52 300 1 76 33 1243 0 35 300 1 78 33 2985 0 83 250 1 90 36 2239 0 62 250 1 63 33 1493 0 41 250 1 52 33 3335 0 93 200 1 90 38 2501 0 69 200 1 53 33 1668 0 46 200 1 32 32 3640 1 01 150 1 90 41 2730 0 76 150 1 42 34 1820 0 51 150 1 15 31 PLEASE NOTE Performance is shown for standard configuration with G4 F7...

Page 22: ...h 1 Air Volume m3 s 1 ESP Pa SFP W l s 1 Casing Breakout 3m dB A 1055 0 29 200 1 90 33 791 0 22 200 1 70 31 528 0 15 200 1 65 30 1285 0 36 150 1 90 34 964 0 27 150 1 54 31 643 0 18 150 1 34 29 1460 0 41 100 1 89 35 1095 0 30 100 1 42 31 730 0 20 100 1 09 28 1615 0 45 50 1 90 36 1211 0 34 50 1 31 31 808 0 22 50 0 89 27 PLEASE NOTE Performance is shown for standard configuration with G4 F7 supply an...

Page 23: ...h 1 Air Volume m3 s 1 ESP Pa SFP W l s 1 Casing Breakout 3m dB A 2120 0 59 300 1 90 35 1590 0 44 300 1 84 34 1060 0 29 300 1 98 33 2745 0 76 250 1 90 37 2059 0 57 250 1 67 34 1373 0 38 250 1 61 33 3140 0 87 200 1 90 38 2355 0 65 200 1 54 35 1570 0 44 200 1 36 32 3460 0 96 150 1 90 39 2595 0 72 150 1 44 35 1730 0 48 150 1 16 32 PLEASE NOTE Performance is shown for standard configuration with G4 F7 ...

Page 24: ...m3 h 1 Air Volume m3 s 1 ESP Pa SFP W l s 1 Casing Breakout 3m dB A 3120 0 87 300 1 90 32 2340 0 65 300 1 90 31 1560 0 43 300 2 17 30 3930 1 09 250 1 90 34 2948 0 82 250 1 66 31 1965 0 55 250 1 72 29 4375 1 22 200 1 90 35 3281 0 91 200 1 50 31 2188 0 61 200 1 43 28 4720 1 31 150 1 90 36 3540 0 98 150 1 37 31 2360 0 66 150 1 18 27 PLEASE NOTE Performance is shown for standard configuration with G4 ...

Page 25: ...ad current per phase A HR95 080 V 1 230 50 1 80 8 8 HR95 150 V 1 230 50 3 70 18 0 HR95 250 V 3 400 50 5 80 13 5 HR95 350 V 3 400 50 8 30 13 0 HR95 450 V 3 400 50 10 00 15 0 HR95 550 V 3 400 50 14 50 21 0 HR95 080 H 1 230 50 1 80 8 8 HR95 150 H 1 230 50 3 70 18 0 HR95 250 H 3 400 50 5 80 13 5 HR95 350 H 3 400 50 8 30 13 0 Model with electric pre heating coil and without coil with water heating coil...

Page 26: ...0 00 29 4 Characteristics of the fan electric motor per fan Unit Type Phase Voltage V Frequency Hz Power Input kW Full Load Current A Speed rpm Protection IP Insulation class HR95 080 1 230 50 0 18 1 3 2800 44 B HR95 150 1 230 50 0 46 3 1 2600 54 B HR95 250 1 230 50 0 50 3 2 1970 54 B HR95 350 3 400 50 1 00 1 8 2140 54 F HR95 450 3 400 50 1 00 1 8 2140 54 F HR95 550 3 400 50 1 62 2 5 1750 54 B Ele...

Page 27: ...35 0 20 5 0 25 1 7 4 18 0 17 4 37 9 5 1 9 0 HR95 150 V HR95 250 V 1820 0 51 5 0 21 4 16 1 5 0 17 2 32 3 9 2 2 0 HR95 350 V 3110 0 86 5 0 24 1 30 3 7 0 17 1 36 8 20 5 4 0 HR95 450 V 3295 0 92 5 0 23 0 31 0 14 0 17 2 35 7 20 4 8 0 HR95 550 V 4460 1 24 5 0 25 0 44 8 31 0 17 2 37 3 30 0 16 0 HR95 080 H 600 0 17 5 0 28 3 6 7 11 0 17 4 40 1 4 6 6 0 HR95 150 H 1330 0 37 5 0 17 9 10 2 4 0 17 1 30 5 6 0 2 ...

Page 28: ...3 9 15 1 14 8 8 0 HR95 450 V 3295 0 92 28 0 16 2 18 4 5 0 23 8 15 2 14 8 4 0 HR95 550 V 4460 1 24 28 0 15 4 27 7 12 0 23 8 14 5 22 8 8 0 HR95 080 H 600 0 17 28 0 15 8 3 5 6 0 24 6 15 1 3 0 5 0 HR95 150 H 1330 0 37 28 0 17 3 6 3 4 0 24 7 16 4 5 3 3 0 HR95 250 H 2085 0 58 28 0 15 3 12 5 6 0 23 9 14 6 10 1 5 0 HR95 350 H 3650 1 01 28 0 15 4 21 7 7 0 23 8 14 7 17 6 5 0 PLEASE NOTE Heat recovery calcul...

Page 29: ...ty 1 2 kg m 3 Condensing 45 oC For accurate coil performance data please request a detailed software selection Cooling Unit Type Air Volume m3 h 1 Air Volume m3 s 1 Without Heat Recovery With Heat Recovery Air On oC Air Off oC Capacity kW Fluid Pd kPa Air On oC Air Off oC Capacity kW Fluid Pd kPa HR95 080 V 735 0 20 28 0 16 7 4 0 12 0 24 6 15 7 3 5 10 0 HR95 150 V 1420 0 39 28 0 17 0 7 5 26 0 24 7...

Page 30: ...8 Unit Type Ø LPHW Ø WCO Ø DX gas Ø DX liquid Ø PHE drain con Ø Cool Coil drain con HR95 080 V FPT FPT 5 8 5 8 40 22 HR95 150 V FPT FPT 7 8 40 22 PLEASE NOTE All dimensions are in mm unless otherwise stated Please note the standard handing of the unit is as portrayed in the drawing and cannot be changed for large orders bespoke designs might be available contact our offices for additional informat...

Page 31: ...6 997 277 230 590 82 242 839 602 Unit Type Ø LPHW Ø WCO Ø DX gas Ø DX liquid Ø PHE drain con Ø Cool Coil drain con HR95 250 V FPT 1 FPT 1 1 8 7 8 40 22 HR95 350 V FPT 1 FPT 1 3 8 1 1 8 40 22 HR95 450 V FPT 1 FPT 1 5 8 1 1 8 40 22 HR95 550 V FPT 1 FPT 1 5 8 1 1 8 40 22 PLEASE NOTE All dimensions are in mm unless otherwise stated Please note the standard handing of the unit is as portrayed in the dr...

Page 32: ...Therm X MVHRU HR95 Technical Manual Page 32 of 59 Version 2 4 25 09 2020 HR95 080 H HR95 150 H HR95 250 H HR95 350 H ...

Page 33: ...2 351 852 87 1900 1850 Unit Type Ø LPHW Ø WCO Ø DX gas Ø DX liquid Ø PHE drain con Ø Cool Coil drain con HR95 080 H FPT FPT 5 8 40 22 HR95 150 H FPT FPT 7 8 5 8 40 22 HR95 250 H FPT 1 FPT 1 1 8 5 8 40 22 HR95 350 H FPT 1 FPT 1 3 8 1 1 8 40 22 PLEASE NOTE All dimensions are in mm unless otherwise stated Please note the standard handing of the unit is as portrayed in the drawing and cannot be change...

Page 34: ... 550 V 700 705 710 with electric pre heating coil HR95 080 V 252 255 257 HR95 150 V 293 296 298 HR95 250 V 388 393 398 HR95 350 V 559 564 569 HR95 450 V 609 614 619 HR95 550 V 705 710 715 Horizontal side by side version Unit Type Weight kg without post heating coil and with post heating electric coil and with LPHW WCO DX coil and without electric preheater HR95 080 H 185 187 190 HR95 150 H 290 293...

Page 35: ... HR95 150 H 805 1600 1900 10 1 HR95 250 H 895 1900 2200 10 1 HR95 350 H 1055 2100 2400 10 1 HR95 080 V 1235 700 1700 10 1 HR95 150 V 1485 800 2000 10 1 HR95 250 V 1785 850 2300 10 1 HR95 350 V 1785 1100 2700 10 1 HR95 450 V 1785 1200 2700 10 1 HR95 550 V 1785 1500 2700 10 1 PLEASE NOTE All dimensions are in mm unless otherwise stated Packaging weight is to be added to the relevant unit or module w...

Page 36: ...Therm X MVHRU HR95 Technical Manual Page 36 of 59 Version 2 4 25 09 2020 12 GENERIC WIRING DIAGRAM ...

Page 37: ...8 B 13 14 HEAT PUMP ERROR settable input NC NO settable volt free 8 A 15 16 FIRE CONTACT input NC volt free 19 B 15 16 PIR MOTION SENSOR input NC volt free 9 A 17 18 EXTERNAL CONTROL ON OFF input NC maximum load 230VAC 2A 20 B 17 18 CONDENSATE OVERFLOW input NC volt free 10 A 19 20 POST HEATER MODULATION output 0 10V OR PWM 21 B 46 47 EXTERNAL TEMPERATURE SENSOR external post heater input EXT 4 NT...

Page 38: ... Horizontal side by side V Vertical double deck B Bypass With bypass X Pre heating coil No preheater E Electric X Post heater coil None E Electric W LPHW C Water Changeover WCO D Direct Expansion DX Separator 74 Filtration Supply G4 F7 Exhaust G4 R Controls Superior P Access 1 Standard Horizontal Left Vertical Right 3 Version PLEASE NOTE 1 Access side is determined by facing away from the supply a...

Page 39: ...L250 HR95 450 V PR O 0700X500 D560 L250 HR95 550 V PR O 1000X500 D630 L600 HR95 080 H PR O 0300X200 D250 L150 HR95 150 H PR O 0500X250 D315 L250 HR95 250 H PR O 0600X300 D400 L300 HR95 350 H PR O 0700X400 D500 L400 PLEASE NOTE Fittings not included For additional information please consult the Therm X MVHRU Accessories Technical Manual 14 2 MOTORIZED RECTANGULAR SHUT OFF DAMPERS The MLKR S rectang...

Page 40: ...IZED CIRCULAR SHUT OFF DAMPERS The KRTK circular damper can be duct mounted to allow automatic shutting off the ventilation system and prevent drafts when the unit is not in operation The damper housing is manufactured of galvanized steel The damper may be fitted with a actuator after removing the manual control lever Unit Type Circular Shut Off Damper Order Reference Damper Actuator Order Referen...

Page 41: ...t in operation The damper manufactured of galvanized steel with an internal rubber gasket Unit Type Backdraft Damper Order Reference HR95 080 V RSKR Z250 HR95 150 V RSKR Z355 HR95 250 V RSKR Z400 HR95 350 V RSKR Z560 HR95 450 V RSKR Z560 HR95 550 V RSKR Z630 HR95 080 H RSKR Z250 HR95 150 H RSKR Z315 HR95 250 H RSKR Z400 HR95 350 H RSKR Z500 PLEASE NOTE For additional information please consult the...

Page 42: ...ds With pods 0 6m 0 6m 0 6m 0 9 HR95 080 V SPTGLX 0 6 250 SPTGLX 0 9 250 SPTGLP 0 6 250 SPTGLP 0 9 250 HR95 150 V SPTGLX 0 6 355 SPTGLX 0 9 355 SPTGLP 0 6 355 SPTGLP 0 9 355 HR95 250 V SPTGLX 0 6 400 SPTGLX 0 9 400 SPTGLP 0 6 400 SPTGLP 0 9 400 HR95 350 V SPTGLX 0 6 560 SPTGLX 0 9 560 SPTGLP 0 6 560 SPTGLP 0 9 560 HR95 450 V SPTGLX 0 6 560 SPTGLX 0 9 560 SPTGLP 0 6 560 SPTGLP 0 9 560 HR95 550 V SP...

Page 43: ...350 V SPTREC 700x500x900 SPTREC 700x500x1200 SPTREC 700x500x1500 HR95 450 V SPTREC 700x500x900 SPTREC 700x500x1200 SPTREC 700x500x1500 HR95 550 V SPTREC 1000x500x900 SPTREC 1000x500x1200 SPTREC 1000x500x1500 HR95 080 H SPTREC 300x200x900 SPTREC 300x200x1200 SPTREC 300x200x1500 HR95 150 H SPTREC 500x250x900 SPTREC 500x250x1200 SPTREC 500x250x1500 HR95 250 H SPTREC 600x300x900 SPTREC 600x300x1200 SP...

Page 44: ...00 SPTBUD 700x500x1200 SPTBUD 700x500x1500 HR95 550 V SPTBUD 1000x500x900 SPTBUD 1000x500x1200 SPTBUD 1000x500x1500 HR95 080 H SPTBUD 300x200x900 SPTBUD 300x200x1200 SPTBUD 300x200x1500 HR95 150 H SPTBUD 500x250x900 SPTBUD 500x250x1200 SPTBUD 500x250x1500 HR95 250 H SPTBUD 600x300x900 SPTBUD 600x300x1200 SPTBUD 600x300x1500 HR95 350 H SPTBUD 700x400x900 SPTBUD 700x400x1200 SPTBUD 700x400x1500 PLEA...

Page 45: ...d with the heater Unit Type Heater Order Reference ALL BESPOKE PLEASE NOTE The water coil is designed for the maximum operating water temperature of 100 C and maximum operating pressure of 16bar The heater is supplied loose for fitting on site by others The heater is supplied as a standalone product and requires a valve and actuator as well as an external control system to operate it Valve and act...

Page 46: ... D HR95 350 V EOKO 560 18 0 3 D HR95 450 V EOKO 560 18 0 3 D HR95 550 V EOKO 630 18 0 3 D HR95 080 H EOKO 250 4 5 3 D HR95 150 H EOKO 315 9 0 3 D HR95 250 H EOKO 400 9 0 3 D HR95 350 H EOKO 500 18 0 3 D PLEASE NOTE The heater is supplied as a standalone product Heater supplied loose for fitting and wiring on site by others Power and control to the heater must be provided by an external source The ...

Page 47: ...nical Manual 14 10 CONDENSATE PUMP Condensate pump kit for connection with the Therm X units Includes pump body reservoir with floating sensor support bracket for installation on the unit and rubber bend for condensate outlet connection Unit Type Pump Order Reference ALL CERP MAXI ORANGE PLEASE NOTE Use of a condensate pump is recommended where gravity assisted condensate collection is not achieva...

Page 48: ...ity on the return ductwork The sensor has an analogue voltage output 0 10V corresponding to the range of relative air humidity 0 100 Unit Type Sensor Order Reference Room CO2 Duct CO2 Room RH Duct RH ALL 22RTM 19 1 22DC 11 22RTH 19 1 22DTH 11M PLEASE NOTE Sensors are supplied loose for fitting and wiring on site by others Cabling not included use of shielded cable for wiring is recommended All sen...

Page 49: ...onsult the Therm X MVHRU Accessories Technical Manual 14 13 SPARE FILTERS Spare filters of the same manufacture as those installed in the unit Unit Type Filter Order Reference Pre filter class G4 ePMCoarse 60 Exhaust filter class G4 ePMCoarse 60 Supply filter class F7 ePM10 50 HR95 080 V FILTR HR95 2 V0800 G4 PRE FILTR HR95 2 V0800 G4 FILTR HR95 2 V0800 F7 MPP HR95 150 V FILTR HR95 2 V1500 G4 PRE ...

Page 50: ...LVEKIT33 1 1 2 I VALVEKIT22 1 1 2 E VALVEKIT33 1 1 2 E HR95 550 V VALVEKIT22 1 1 2 I VALVEKIT33 1 1 2 I VALVEKIT22 1 1 2 E VALVEKIT33 1 1 2 E HR95 080 H VALVEKIT22 3 4 I VALVEKIT33 3 4 I VALVEKIT22 3 4 E VALVEKIT33 3 4 E HR95 150 H VALVEKIT22 3 4 I VALVEKIT33 3 4 I VALVEKIT22 3 4 E VALVEKIT33 3 4 E HR95 250 H VALVEKIT22 1 I VALVEKIT33 1 I VALVEKIT22 1 E VALVEKIT33 1 E HR95 350 H VALVEKIT22 1 1 2 I...

Page 51: ... I VALVEKIT22 1 2 E VALVEKIT33 1 2 E HR95 150 H VALVEKIT22 1 2 I VALVEKIT33 1 2 I VALVEKIT22 1 2 E VALVEKIT33 1 2 E HR95 250 H VALVEKIT22 1 2 I VALVEKIT33 1 2 I VALVEKIT22 1 2 E VALVEKIT33 1 2 E HR95 350 H VALVEKIT22 1 2 I VALVEKIT33 1 2 I VALVEKIT22 1 2 E VALVEKIT33 1 2 E Unit Type Order Reference EPIV Kit Internal EPIV Kit External HR95 080 V VALVEKITEPIV 1 2 I VALVEKITEPIV 1 2 E HR95 150 V VALV...

Page 52: ...m a rigid enclosure with internally smooth and crevice free surfaces reinforced internally to achieve an outstanding casing rigidity and mechanical strength 1 5 The panels shall be packed with high density Rockwool 88kg m 3 with excellent thermal and acoustic performance λD 0 041 W m 1 K 1 and fire resistance class A1 to 13501 1 A1 2009 non combustible 1 6 To avoid external air leakage both fixed ...

Page 53: ...ed of continuously welded backward curved aluminium blades 4 3 The fans shall be directly driven by low energy consumption IE4 electronically commutated EC motors 4 4 The assembly shall be statically and dynamically balanced as per DIN ISO 1940 to balancing grade G 6 3 4 5 The fan assembly is installed on a highly rigid galvanized support structure and fitted with an aerodynamically optimized galv...

Page 54: ...e of the unit shall be provided 7 Optional features 7 1 The unit shall be optionally available with integral electrical pre heating coil or post heating coil 7 1 1 The electric heaters shall be manufactured with open coil heating elements and galvanized casing 7 1 2 The heater shall be complete with fully modulating SCR control 0 10V to regulate the heat output from 0 to 100 and 2 stages of overhe...

Page 55: ...ound pressure Engineering methods for an essentially free field over a reflecting plane Published figures shall be for a non punctiform source and spherical propagation as described in ISO 3744 8 3 In duct noise shall be acoustically tested to BS EN ISO 5136 Acoustics Determination of sound power radiated into a duct by fans and other air moving devices In duct method 8 4 Heat recovery efficiency ...

Page 56: ...ller firmware and copying settings across similar units 9 5 The unit controls shall allow continuous flow rate regulation of the airflow range of the unit from 0 to 100 in 10 steps 9 6 The unit shall be able to operate as standard in CAV Constant Air Volume mode supplying a constant volume of air independently of internal or external pressure changes 9 7 The unit shall be capable to operate as sta...

Page 57: ...logic for the plate heat exchanger this shall be achieved by maintaining the exhaust air temperature above freeze point by either modulating the electric pre heater if installed or reducing the PHE supply airflow by using bypass 9 18 When an electric post heating coil is installed the output of the heater shall be continuously controlled to match the pre set temperature on the controller 9 19 The ...

Page 58: ... Modbus RTU RS485 Modbus TCP IP and BACNET TCP IP protocol allowing full control and monitoring of the unit 9 31 The unit shall provide soft start up and memory of the last operating status in the event of a power failure 9 32 The unit shall provide end user access protection with PIN access code Different levels of protection shall be available 9 33 The unit shall provide automatic Winter Summer ...

Page 59: ...Barkell Ltd Unit 22 No 1 Industrial Estate Consett County Durham DH8 6SZ Tel 44 0 1207 590 575 Email ahu barkell co uk Web https www barkell co uk ...

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