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MIUM0001_REV01_ RKB_20140130 MIUM ENG.docx 

 

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I

NTRODUCTION

 

 
Dear Customer, 
 
these heat recovery units are designed and developed for residential and commercial applications and allow the room air 
renewal with a sure energy saving. Unit must be used only for this purpose, LMF will not respond in case of different use 
of the unit. 
In  fact,  where  the  room  air  renewal  is  needed,  the  unit  transfers  heat  between  the  exhaust  air  to  the  fresh  air  that 
otherwise would be lost. 
 
In their basic working principle, they consist in (see 

figure 1

) : 

– fans (supply and exhaust air) 

– counterflow heat recovery 

– filter sections (on fresh air and return air intakes) 

– electrical board 

 
These units may be integrated with traditional heating and cooling systems, but they can operate also autonomously if 
equipped with the proper accessories.

 

 
• This manual and the wiring diagram supplied with the unit must be kept in a dry place and ready to hand for future 
consultation when required. 
•  This  manual  has been compiled  to  ensure  that  the  unit  is  installed  in  the  correct  way  and  to  supply  comprehensive 
information  about  how  to  correctly  use  and  service  the  appliance. 

Before  proceeding  with  the  installation  phase, 

please  carefully  read  all  the  information  in  this  manual,  which  describes  the  procedures  required  to  correctly 
install and use the unit. 

• Strictly comply with the instructions in this manual and conform to the current safety standards. 
• The appliance must be installed in accordance with the laws in force in the country in which the unit is installed. 
• Unauthorized tampering with the electrical and mechanical equipment will 

VOID THE WARRANTY. 

•  Check  the  electrical  specifications  on  the  identification  plate  before  making  the  electrical  connections.  Read  the 
instructions in the specific section where the electrical connections are described. 
• If the unit must be repaired for any reason, this must only be done by a specialized assistance center recognized by the 
manufacturer and using genuine spare parts. 
• The manufacturer also declines all liability for any damage to persons or property deriving from failure of the information 
in this manual to correspond to the actual machine in your possession. 

• Proper uses: this series of air to air heat recovery unit is designed to air renewal/conditioning purposes. Any 
use  differing  from  this  proper  use  or  beyond  the  operating  limits  indicated  in  this  manual  is  forbidden  unless 
previously agreed with the manufacturer. 
• The prevention of the risk of fire/injury at the installation site is the 
responsibility of the end user and/or installer. 

 
 
 
Verify,  upon  acquisition,  that  the  apparatus  is  complete  and  supplied  as 
described. 
Any eventual disputes must be presented in writing within 8 days from the 
reception of the goods. 
 
 
Each unit is provided with identification plate listing the following: 

 
 

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Address of Manufacturer 

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“CE” Mark 

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Model 

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Serial Number 

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Power supply voltage in “V” 

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Power supply frequency in “Hz” 

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Number of phases indicated with “Ph” 

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Maximum current in “A”

 

 

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Date of fabrication 

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Code 

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Motor power “W” 

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Absorbed power “kW” of electric coil (if present) 

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Absorbed current “A” of electric coil (if present) 

 
 
 

 

 

Summary of Contents for RKB 1000

Page 1: ...1_ RKB_20140130 MIUM ENG docx 1 I IN NS ST TA AL LL LA AT TI IO ON N O OP PE ER RA AT TI IO ON N A AN ND D M MA AI IN NT TE EN NA AN NC CE E M MA AN NU UA AL L 50 EFFICIENCY AIR TO AIR HEAT RECOVERY UNIT SERIES RKB ...

Page 2: ...ctive 2004 108 CE and Ecodesign Directive 2009 125 CE The unit belonging to the above series is designed according to the following main safety prescriptions principals of safety integration used materials free from risk safety while transportation handling and installation protection against mechanical risks protection against electrical risks protection against fire risks design and construction...

Page 3: ...C SHOCK ATTENTION AUTHORIZED PERSONNEL ONLY 1 INTRODUCTION pag 4 2 DIMENSIONS AND WEIGHTS pag 5 3 INSTALLATION CONFIGURATIONS pag 6 4 TRANSPORTATION pag 7 5 INSTALLATION CONNECTION pag 8 6 WIRING DIAGRAMS pag 10 7 STANDARD MAINTENANCE pag 11 8 TROUBLESHOOTING pag 12 9 MATERIAL DISPOSAL pag 12 ...

Page 4: ...cordance with the laws in force in the country in which the unit is installed Unauthorized tampering with the electrical and mechanical equipment will VOID THE WARRANTY Check the electrical specifications on the identification plate before making the electrical connections Read the instructions in the specific section where the electrical connections are described If the unit must be repaired for ...

Page 5: ...f the horizontal series RKB M Supply E Exhaust R Return A Fresh air RKB 500 1000 2000 3000 4000 A mm 750 900 1000 1300 1400 B mm 750 900 1000 1300 1400 C mm 290 410 470 530 705 D Ø mm 200 315 355 450 500 E mm 145 205 235 265 352 F mm 202 240 265 340 365 Ø condensate mm 2 x 1 2 F 2 x 1 2 F 2 x 1 2 F 2 x 1 2 F 2 x 1 2 F Weight kg 41 68 99 155 235 E90 R90 A90 E M A R M90 ...

Page 6: ...ive the following combinations each of them is a specific unit orientation to be specified when ordering Horizontal configuration RKB Configurations shown on the figure below are possible A fresh air R return air M supply air E exhaust air TYPE A Configurations shown on the figure below are possible A fresh air R return air M supply air E exhaust air TYPE B M90 E A M R E90 R90 A90 M R E A A90 R90 ...

Page 7: ...ch inlet outlet panels for example from E to E90 you may need to exchange two panels between each other Vertical configuration RKB vertical kit Configurations shown on the figure below are possible A fresh air R return air M supply air E exhaust air TYPE A TYPE B To modify the position of the suction inlets it is sufficient to exchange two panels each other A R E M M90 M90 A R E M E90 E90 ...

Page 8: ... the unit electric and hydraulic connections and any air pipes ducts or free passages Neglecting these aspects may decrease performance and operational life of the unit and therefore increase the operating costs and maintenance Units are designed to be installed INSIDE or PARTIALLY OUTSIDE roof cover needed and in fixed positions Before placing the unit be sure that the location is in a safe acces...

Page 9: ...cers of such products Before placing in function the unit check the perfect connection of the various components and the internal parts of the system Avoid at all costs human contact with moving parts and contact with the parts themselves Do not commence with servicing or cleaning of the unit before the unit has been disconnected from the main supply The maintenance and the substitution of damaged...

Page 10: ... of free space as indicated in the following figure This permits ease of installation and maintenance Machine positioning The unit is equipped with anti vibration support plates Referring to the following figure the following are instructions to fix the unit to its supports 1 Carry out the drilling of the ceiling and fit the four M8 threaded bolts 1 2 Position the unit on the four bolts using the ...

Page 11: ...not interfere with discharge of the unit Water coil connection SAF The water heating or cooling coil SAF is supplied with GAS male threaded headers The tightening must be carried out with extreme care to avoid damage to the copper collectors of the coil The path of the tubes must be studied in a way to avoid obstacles should it be necessary to extract the unit coil Inlet and outlet water must cons...

Page 12: ...ied and authorized personnel according to EU Regulation 303 2008 of 2 April 2008 and later that requires companies and technicians that perform maintenance repair leakage checking and recovery recycling gases must be certified as required by local regulations Comply with the safety precautions given in the relative section of this manual and take all the necessary precautions The following informa...

Page 13: ...ned 8 TROUBLESHOOTING Failure searching and problem solving schedule Founded failure Probable cause Possible solution Fans are not running Power supply is switched off Wrong or loose electrical connections Motors on thermal protection mode Switch on the power supply Restore the right connections Check motor current Air performance decreasing Air filter dirty Air duct blocked Clean or replace filte...

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