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AIR EXCHANGE PLAN
THE AIR EXCHANGE PLAN INCLUDES ATLEAST:
DRAWINGS-plans and sections(1:50)as well as installation
drawings(1:20).The drawings must include at least the location
of equipment and channels, measures, technical data, air flow
and operational chart. For air flow measuring, the installation
must be slightly under pressurized.
EQUIPMENT and QUANTITY LIST presents all work-
influencing mechanical details with detailed characteristics
(equipment list, noise reducers, fans etc).
INSTALLATION MANUAL describes installation procedures
for the central engine and equipment. Type approved machinery
has detailed installation instructions enclosed to the air
exchange plan.
WORK SPECIFICATION specifies contract limits and
timetable for the working order. Drawings, lists and installation
instructions define IV-work in detail and do not need to be
repeated. Work specification defines necessary testings,
measuring and basic adjustment with proceedings reports.
THE REQUEST FOR QUOTATION includes total pricing
considering on schedule installation according to the plan
payment conditions are also extremely important.
IMPLEMENTATION- AND MAINTENANCE TRAINING is
unavoidable before the work is ready for handover.
INSTALLING THE CHANNELLING
The channels for exhaust air and incoming air should be installed, if possible, in a warm space below the vapour
barrier to suspended ceilings or casing. The vapour barrier remains intact and the channels do not need heat insulation.
This also ensures that the airflow in the channels will not freeze due to poor heat insulation as well as there will be no
condensing. Cleansing of channels also becomes easier. The outside air and exhaust air channels are isolated under
warm conditions, see the instructions.
The channels are compiled of type-approved, rubber gasket parts and winded joint channel. Disconnections will be
removed for sealing and noise reasons. Connections will be secured with closing drawstrings and channels attached
securely to the framework with mounting strings so it will persist also cleaning.
Measuring- and regulation equipment of airflow are installed to exhaust channels after noise deductors and inflow
channels before the deductors. For cleansing, a cleansing hatch should be installed. Remember, that a good functioning
channel is: measured correctly, hermetic, carefully attached, properly isolated and with hermetic inlets!
THE SYSTEM IS ONLY AS GOOD AS IT'S WEAKEST PART!
EXTRACT AIR
FLOW
Kitchen
Bathroom
WC
Clothing room
Utility room
Sauna
Hobby room
Bed rooms
or
The airflow of the basic operating situation can be used only
if it is possible to increase the airflow in the with the control
valve to the level of the normal operating situation. A
separate exhaust valve is required near the ceiling in the
kitchen.
OUTDOOR AIR FLOW
Living room
Bed room
Dining room
Hobby room
Sauna
To avoid damages caused by humidity the outdoor airflow has
to be at least 85 % of the exhaust airflow.
3
Normal
Basic
operating
operating
situation
situation
3
3
25 dm
/s
8 dm
/s
15 "
10 "
10 "
7 "
3 "
3 "
15 "
8 "
2
2
2 "/m
6 "/m
2
2
0.5 "/m
0.5 "/m
2
2'
0.5 "/m
0.5 "/m
6 " /person
6 " /person
3
2
0.5 dm
/s/m
3
0.6 " " or 6 dm
/s/person
0.5 "
"
0.5 "
"
3
"
" at least 6 dm
2
/s
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