REC RT 250S-EC-RS User Manual Download Page 20

 
 

 

REC Indovent AB, Box 37, 431 21 Mölndal  

|  

tel.031-675500  

|

  www.rec-indovent.se 

 

19 

MAINTENANCE & SERVICE 

Ventilation Unit RT 250/400S-EC-RS

 

 
 

Cleaning 

Keep the unit clean for maximum performance and 
long service life. The filters should be changed at 
least once a year or more frequently if necessary. 
The fans and heat exchangers must be cleaned 
according to the instructions below. 
 

Changing filters 

The Temovex unit has two filters, exhaust air filter 
and outdoor air filter (fresh air). 
The filters should not be washed but replaced with 
new ones. 
New filters can be ordered from REC Indovent AB at 
www.rec-indovent.se or phone 031-675500. 
 
 

           

The unit must not be operated without the 

intended original filters. Operation without filters 
seriously affects the performance of the unit and 
can damage the unit's fans and 
heat exchangers. 
 

·

 

Switch of the power. 

·

 

Open the unit's door. 

·

 

Remove the long Cover plate.    

·

 

Take hold of the filter or of the  
clamp between the bags.  
Push the front part backwards, 
downwards. 

·

 

The supply air filter is behind 
the inner cover plate, behind the exhaust filter. 
Remove the filter. 

·

 

Clean accessible surfaces if necessary. 

·

 

Fit the new filters in reverse order (the blue, 
exhaust air filter, is fitted in the front). 

·

 

Refit the cover plate. 

·

 

Close the door. 

·

 

Turn on the power. 
 

The unit operates even if the filters are dirty, but the 
performance would be less good, energy 
consumption increases and heat recovery 
decreases. 
Reset filter alarm: See Chapter 5.

 

 

 

Cleaning the fans 

·

 

Switch of the power. 

·

 

Open the unit's door. 

·

 

Remove both covers. 

·

 

Disconnect the fan's electric 
plug and pull out the fan. 
(Clean one fan at a time). 

·

 

Clean the impeller using a brush or 
compressed air. 

·

 

Refit the fans in reverse order. 

·

 

Refit the covers. 

·

 

Close the door. 

·

 

Turn on the power. 
 

 

NOTE!  The fans must 
under no circumstances be 
cleaned under running 
water! 

 

Cleaning the heat exchanger 

·

 

Switch of the power. 

·

 

Open the unit's door. 

·

 

Remove both fans (see above). 

·

 

Open the inspection door by the 
bottom of the unit. 

·

 

Remove the red plug at the 
bottom of the unit, the condensate 
drain. 

·

 

Flush the heat exchanger with hot 
water

NOTE!  If the unit is fitted with a condensate 
evaporator unit (KAVK), a wet vac should be 
used to deal with the rinse water.

 

A degreasing agent may be required if the heat 
exchanger is very dirty. 
 

    

NOTE!  The agent must be of a type which is 

not aggressive to aluminium. Alkaline 
detergents with caustic ammonia and alike 
must never be used, since they have a 
corrosive action on aluminium, i.e. ruin the heat 
exchanger. 

·

 

Refit the red plug (On the same side of the unit 
as the filters).

 

·

 

Refit the inspection door.

 

·

 

Refit the fans in reverse order.

 

 
 

    

NOTE!  Make sure the fan motors are not/do 

not get wet when restarting the unit. If wet, this 
could be fatal! 
 

·

 

Refit the covers. 

·

 

Close the unit door. 

·

 

Turn on the power using the main switch. 
 

Checking the condensate drain 

·

 

Open the unit's door. 

·

 

Open the access door at the bottom of the 
cabinet. 

·

 

Make sure the drain is not 
blocked.  This can be done 
by pouring some water into 
the bottom of the unit.  
NOTE!  On the side which does not have a red 
plug. 

·

 

If the drain is jammed, try to remove the 
obstruction. If need be, call a plumber. 

·

 

Refit the access door. 

·

 

Close the unit door. 

 
 
 
 
 

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Summary of Contents for RT 250S-EC-RS

Page 1: ...ndovent AB Box 37 431 21 M lndal tel 031 675500 www rec indovent se 1 User manual DESIGN TECHNICAL INFORMATION OPERATION CONTROL MAINTENANCE SERVICE MAINTENANCE SERVICE Exhaust air filter article No Q...

Page 2: ...el Bokm rket r inte definierat Temperatures ECO adjusts Control mode Limit for cooling 2 Fan control 10 Fan control 3 Timer 11 Time and summer wintertime Activate timer Time schedule Weekend schedule...

Page 3: ...REC Indovent AB Box 37 431 21 M lndal tel 031 675500 www rec indovent se 3 CONTENTS Ventilation Unit RT 250 400S EC RS...

Page 4: ...as exhaust air fan see point 4 6 Heat exchanger Temovex counterflow heat exchanger is designed by our own staff and is the result of 30 years experience of high efficient counterflow heat exchangers...

Page 5: ...electricity water GT1 Temperature sensor Supply air red sensor GT11 Temperature sensor outdoor air blue sensor TFR Filter Supply air Outdoor air FFR Filter Exhaust air TF Fan Supply air FF Fan Exhaust...

Page 6: ...W 238 W heater 900W Extended heater option 900W Power water coil small 1150 W1 1500 W1 Power water coil big option 2000 W1 2800 W1 Water connection DN12 Voltage Frequency 230 V 50 Hz Fuse 10 A Filter...

Page 7: ...enu where it is possible to change some parameters Steady You are now in change position Menu system The unit s various settings and the status of different values such as temperature etc Can be viewe...

Page 8: ...e Heating xx Bypass xx and Cooling xx If all have 0 output 0 is shown Temp shows current temperature set point Se sid Fel Some menus may be missing depending on unit configuration REC TEMOVEX Mode Nor...

Page 9: ...rature is measured in the extract air duct close to the unit Extract air is the air that after the heat has been recovered leaves the unit and is sent out of the house Room temperature is measured usi...

Page 10: ...eeze P temp Actual 8 5 C Cooling limit Outd Temp 20 0 C Hysteresis 1 0 C Cont d from Temperature p 7 and above page Supply air temp Actual 25 1 C Supply air temp livingroom Actual 26 5 C Outdoor air t...

Page 11: ...d while the cooker fan is used During kitchen flow the supply air fan normally has a higher flow than the exhaust air fan to compensate for the air that the cooker fan extracts Off In this mode all fa...

Page 12: ...s are in the format MM DD Imagine that you are entering a time period from 00 00 one day until 00 00 the next day For example holiday June 6th is written 06 06 06 07 When the current date falls within...

Page 13: ...lity to adjust the value for the temperature sensors up or down Set an offset value May for example be used to synchronize the old normal thermometer with the system temperature Input the difference h...

Page 14: ...tputs All configured digital outputs such as ULS KAVK CP etc can be set to Auto On or Off or similar words indicating the two possible conditions of a digital signal Filter timer The filter timer is a...

Page 15: ...hould not be done without proper knowledge since it may cause danger and in worst case damage to property Alarm history This shows the 21 latest alarm activities E g when the alarm was triggered when...

Page 16: ...lt Setting Parameter Default Setting Language Swedish Summertime Yes Address 254 30 Activate timer No Setpoint supply air temp control 19 C The timer controls Min flow Setpoint exhaust air control 21...

Page 17: ...el with display is the most advanced remote panel This also contains a temperature sensor and can be used as a room thermostat It also has a display and some keys allowing you to see different tempera...

Page 18: ...nt mode than AUTO It may be that the unit is in a speed between min and max and normal and forced respectively due to forced or safe mode The symbol fan speed will show the actual fan mode according t...

Page 19: ...d increased supply air during the initial time after the stove has been lit It means that the cooling is blocked so that you do not cool out the nice heating from the stove Start of stove timer Pushin...

Page 20: ...power Open the unit s door Remove both covers Disconnect the fan s electric plug and pull out the fan Clean one fan at a time Clean the impeller using a brush or compressed air Refit the fans in reve...

Page 21: ...nd normal maintenance should be carried out by professionals in the ventilation field or if electricity is involved by an authorized electrician The electric panel must not be opened by other than aut...

Page 22: ...21 Notes...

Page 23: ...22 Notes...

Page 24: ...23 Notes...

Page 25: ...o specification and construction without prior notification REC Indovent AB Box 37 SE 431 21 M lndal Sweden Visiting address K rragatan 2 Tel 46 31 67 55 00 Fax 46 31 87 58 45 www rec indovent se Cert...

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