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1.5.2

 

Fire extinguisher and first aid 

Place a first aid kit and fire extinguisher near the unit. 
Periodically make sure that the fire extinguishers are charged and that the way to use 
is clear. 
In  case  of  fire,  use  it  according  to  the  regulations  in  force  and  contact  the  fire 
brigade. 
Check periodically that the first aid kit is complete. 
Make sure you have first aid phone numbers nearby. 

 

The supply of fire extinguisher and first aid kit is the responsibility of the owner of the building on which 
the unit is installed. 

 

1.5.3

 

 Warnings for checks and maintenance 

Apply a sign with the words: "UNDER MAINTENANCE" on all sides of the unit. 
Check the unit carefully by following the list of operations in this manual. 

1.5.4

 

Safety tags 

 

 
 
 

Generic alarm      Electric voltage        Danger of burns       Moving parts       Cut wounds 

2

 

PRODUCT DESCRIPTION 

KERS  recuperators  are  designed  to  ventilate  apartments,  hotels,  bars  and  any  other  civil,  residential  and 
commercial environment in a controlled manner. 
The unit is equipped with a very high efficiency ceramic exchanger which allows to introduce fresh air into the 
room and to recover heat from the previously expelled exhausted air. 
KERS recuperators combine state-of-the-art technical solutions (ceramic recuperator with 91% efficiency) with a 
pleasant aesthetics. The exposed installation is aesthetically pleasing thanks to the elegant external covers. 
KERS is designed to be mounted in external walls with thickness  from 300 mm to 570 mm on KERS 25. Special 
extensions allow to overcome greater thicknesses (see paragraph 9.5). 
The  low  air  speed  avoids  the  annoying  drafts  present  in  traditional  air  conditioning  systems  and  guarantees 
maximum environmental comfort. 
 
The exclusive use of components of the highest quality in the aeraulic and electrical parts puts the KERS units at 
the highest levels of the state of the art, in terms of efficiency, reliability and sound power emitted. 
 

2.1

 

STRUCTURE AND OPERATION 

The unit consists of: a ventilation unit, a recuperator, two filters, an external protection hood and a telescopic 
duct. The length of the duct can be adjusted by sliding the duct section facing the room, inside the duct section 
facing outwards. 
The two filters and the exchanger are inserted in the telescopic duct. The filters purify the new air and prevent 
the entry, from the outside, of objects that can damage the exchanger or the fan. 
The  unit  is  equipped  with  a  non-volatile  memory  clock,  which  generates  an  audible  signal  every  90  days  of 
operation to remind you to change or clean the filters. The signal repeats every 5 minutes until maintenance is 
completed. After maintenance, press the ON-OFF button on the remote control for 10 seconds to reset the clock: 
a long signal confirms that the clock has been reset. 
Each time the ON-OFF button is pressed for 10 seconds, the non-volatile memory clock resets. 
The heat exchanger recovers the heat of the exhaust air to heat the air introduced into the room. It is provided 
with a cord that facilitates its removal from the unit and with an insulation that also acts as a sealing gasket. 
A  shutter  closes  automatically  when  the  appliance  is  in  stand-by,  to  prevent  the  passage  of  unwanted  air 
currents. 
The ventilation unit must be installed in places where it is not possible to enter water or other substances that 
could damage its components. The fan must be on the inside of the wall. 

Summary of Contents for KERS 25

Page 1: ...HIGH EFFICIENCY SINGLE ROOM HEAT RECOVERY UNITS KERS 25 WITH REMOTE CONTROL 13 USER AND INSTALLER MANUAL ...

Page 2: ... 4 2 WIRING DIAGRAMS 8 5 BUTTONS AND REMOTE CONTROL FOR MANAGEMENT OF THE UNIT 10 5 1 BUTTONS ON BOARD 10 5 2 REMOTE CONTROLLER 11 6 TECHNICAL DATA 12 6 1 MAIN FEATURES 12 6 2 SOUND PRESSURE 12 6 3 ENERGY LABEL 13 6 4 DIMENSIONAL DRAWINGS 14 7 AFTER SALES 14 7 1 TROUBLESHOOTING 14 7 2 ROUTINE MAINTENANCE 15 8 PUTTING THE UNIT OUT OF SERVICE 15 9 INSTALLATION 15 9 1 PREMISES 15 9 2 POSITIONING 15 9...

Page 3: ...t a new manual to the manufacturer by communicating the machine serial number on the data plate Pay close attention to the following symbols Their function is to emphasize particular information such as With reference to serious dangerous situations that can occur when the unit is used to ensure safety for people With reference to dangerous situations that may occur with the use of the unit to avo...

Page 4: ...n any case always comply with national safety regulations Do not remove or damage the protections labels and writings especially those required by law and if no longer legible you must replace them The machinery directive 2006 42 EC gives the following definitions DANGEROUS AREA any area inside and or near a machine in which the presence of an exposed person constitutes a risk for the safety and h...

Page 5: ...id personal injury do not use worn or damaged poor quality or improvised tools once the unit has been cleaned the operator must check that there are no worn or damaged parts or not solidly fixed otherwise ask for the intervention of the maintenance technician The use of flammable fluids in cleaning operations is prohibited To clean the unit do not use diesel fuel petroleum or solvents as the forme...

Page 6: ...oying drafts present in traditional air conditioning systems and guarantees maximum environmental comfort The exclusive use of components of the highest quality in the aeraulic and electrical parts puts the KERS units at the highest levels of the state of the art in terms of efficiency reliability and sound power emitted 2 1 STRUCTURE AND OPERATION The unit consists of a ventilation unit a recuper...

Page 7: ... the ceramic heat exchanger it heats it Thus it transfers up to 91 of the thermal energy In 65 seconds the exchanger is heated and the unit switches to phase 2 2 1 2 Phase 2 fresh air flows from the outside through the hot ceramic exchanger which heats the air down to room temperature In 65 seconds the ceramic exchanger cools down and the unit switches to phase 1 2 2 OPERATIONAL LIMITS 5 10 15 20 ...

Page 8: ...ximum number of KERS that can be connected in series with each other is of up to ten pieces 4 ELECTRICAL CIRCUITS 4 1 ELECTRICAL EQUIPMENT The electrical panel is made and wired in accordance with the Low Voltage and Electromagnetic Compatibility regulations The fans equipped with low consumption reversible EC motors adjustable between 1 4 W and 7 3 W are extremely quiet 22 29db Once the fan has b...

Page 9: ...ire cable not included in delivery with a cross section of 0 5 mm 2 and insulation suitable for 230 V AC voltage Always remove the plug from the socket before making connections The first KERS unit controls all the others Each unit must be programmed so that all inputs and extractions are not simultaneous and do not put the environment under pressure or depression The jumper on the CN 7 terminal b...

Page 10: ...of which the operating modes are defined Central position two opposite arrows heat recovery mode Extraction and input alternate Top position arrow pointing inwards input mode from factory When the KERS are connected in series and the jumper on the CN 7 terminal board is on 3 4 see chapter Operation of several appliances connected to each other the appliance operates in extraction mode Bottom posit...

Page 11: ... air circulate naturally without activating the fan Enter button allows you to introduce fresh air into the rooms at the set speed All the KERS connected in series operate in input regardless of the position of the jumper on terminal CN7 Extraction button allows you to extract air from the rooms The operating mode of all the KERS connected in series is determined by the position of the jumper on t...

Page 12: ... speed max A 0 027 On board filters 2 Filtration class EN 779 G3 Power Supply V ph Hz 230 1 50 Limit temperature conditions of use T 20 C 50 C Limit humidity conditions of use RH 80 Insulation class IP 24 6 2 SOUND PRESSURE Heat Recovery Unit Kers 25 with remote u m VRKS25 Speed III Input output flow m3 h 23 Effective airflow rate m3 h 11 5 Sound pressure at 1 m dB A 43 Sound pressure at 3 m dB A ...

Page 13: ... W 5 32 Sound power dB A 45 Reference range m3 s 0 005 Reference head Pa 0 Specific Power SPI W m3 h 0 235 Type of control Local Environment Control Maximum internal leakage 2 7 Maximum external leakage 2 7 Mixture rate of bidirectional units 1 Airflow sensitivity changes of 20 Pa and 20 Pa m3 h 13 73 Airtightness indoor outdoor m 3 h m3 h 0 45 Internet address www idealclima eu Annual electricity...

Page 14: ...r of the fan or of the exchanger is dirty Clean or replace the filters clean the fan and the recuperator see the maintenance chapter 3 The circuit breaker trips A short circuit produced an overcurrent Turn off the unit and contact a service center 4 The unit continues to play and the fan does not rotate Possible absence of one or both jumpers on the CN7 terminal board located near the green INPUT ...

Page 15: ...e must be demolished and divided according to their product type 9 INSTALLATION 9 1 PREMISES 9 1 1 INSPECTION Upon receipt of the unit check its integrity the machine left the factory in perfect condition any damage must be immediately reported to the carrier and noted on the Delivery Sheet before countersigning it LIFTING AND TRANSPORT During unloading and positioning of the unit the utmost care ...

Page 16: ...cific chapter it is necessary to provide passages for the connection cables between one KERS and the other as well as for the power supply cable Install the telescopic tube inside the drilled hole so that the smaller diameter faces the inside of the room The telescopic tube must be flush with the internal wall and must protrude from the external wall by 10 mm Keep an outward inclination of approxi...

Page 17: ...e order from the inside the filter the ceramic exchanger the filter and the spacer inside the telescopic duct exploded drawing 10 3 Install the ventilation unit on the mounting plate 9 4 4 Positioning of the external hood Mark the fixing holes for the external hood and drill 40 mm deep holes for 6x40 dowels in the positions of the following diagram Insert the 6x40 plugs included in the supply into...

Page 18: ...ss to the outside area The metal grill and the relative grill cover supplied with the appliance must not be used if you opt for flexible grids 10 1 2 Flexible outdoor grille installation Slightly flex the grille and slide it into the duct Holding it firmly by the center peg pull it completely out of the duct so that it can expand and return to its original shape Pull towards you and at the same ti...

Page 19: ...reases its length up to a further 80 cm The extension is fitted on the supplied telescopic duct taking care that the female of the extension fits on the male of the duct It is a good idea to seal the small gap that is formed between the duct and the extension on site to prevent any moisture from the walls from infiltrating the appliance 12 FIRST START Check that the wall socket is powered at 230 V...

Page 20: ...13 NOTE ...

Page 21: ... ...

Page 22: ...ration of the property labor travel transport works etc In any case production defects must be recognized by Ideal Clima technicians The components replaced under warranty remain the property of Ideal Clima to which they must be returned free of charge 15 4 validity and duration the warranty starts from the date of purchase of the product and has a duration of two years The date of purchase is evi...

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