REC TEMOVEX RT400S-EC-RS Manual page 88

MAINTENANCE & SERVICE
Cleaning
For best possible performance and a long life, the
AHU should be kept clean. Please see instructions
below on how to clean fans and heat exchanger.
Changing filters
There are two filters in this AHU: exhaust air filter
and supply air filter (fresh air).
Both filters should be changed at least once a year,
and ofter if need be. Do not wash the filters, but
exchange them for new ones.
To buy new filters, please contact the local dealer in
your country or order from
!
NOTE! The Temovex AHU must be fitted
with the Temovex filters listed on page 1 of this
manual. If the unit operates without filters, the
performance will be affected
adversely and fans and heat
exchanger may be seriously
damaged.
(Ref. numbers - see page 6)
•
Cut off the power using the main
switch.
•
Open the unit door (1).
•
Remove Cover plate A (see
page 2).
•
Take hold of the filter (2) or of the
clamp between the bags. Push the front part
backwards, downwards.
•
The supply air filter (7) is behind the inner over
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 access door.
•
Close the unit 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.
To turn off/aknowledge filter alarm, see Ch 5.
Cleaning the fans
•
Cut off the power using the
main switch.
•
Open the unit door (1).
•
Remove both covers (4 and 5)
•
Clean one fan at a time.
•
Undo the fan's electric plug and
pull out the fan.
•
Clean the impeller using a brush
or compressed air.
•
Refit the fans in reverse order.
•
Refit the covers.
REC Indovent AB, Box 37, SE-431 21 Mölndal, Sweden
www.rec-indovent.se
Air Handling Unit RT 250/400S-EC-RS
•
Close the unit door.
•
Switch on the power using the main switch.
NOTE! The fans must under no
!
circumstances be cleaned under running
water!
Cleaning the heat exchanger
•
Cut off the power using the main switch.
•
Open the unit door (1).
•
Remove both covers (4 and 5) and remove
both fans (see above).
•
Open the inspection door (8)
•
Remove the red plug at the
bottom of the unit, the condensate
drain (10)
•
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 (10) (On the same side of the
unit as the filters).
•
Refit the inspection door (8).
•
Refit the fans in reverse order (4, 5)
!
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.
•
Switch on the power using the main switch.
Checking the condensate drain
•
Open the unit door (1).
•
Open the access door (8) 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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