Maestro High Pressure Fan Coil Units - BTK
Maestro High Pressure Fan Coil Units - BTK
Maestro High Pressure Fan Coil Units - BTK
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DIAGRAM 1 - Correction diagram<br />
of cooling emission depending on air flow<br />
Emission %<br />
1,1<br />
1<br />
0,9<br />
0,8<br />
0,7<br />
0,6<br />
0,5<br />
0,4<br />
0,3<br />
0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 1,1 1,2<br />
Air flow %<br />
TOTAL<br />
SENSIBLE<br />
DIAGRAM 2 - Correction diagram<br />
of heating emission depending on air flow<br />
Emission %<br />
1,2<br />
1,1<br />
1<br />
0,9<br />
0,8<br />
0,7<br />
0,6<br />
0,5<br />
0,4<br />
0,3<br />
0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 1,1 1,2<br />
Air flow %<br />
1,3<br />
Example of calculation<br />
of the emission at different<br />
speeds and air pressure drops:<br />
Model = MAESTRO 13<br />
Speed<br />
= medium<br />
Available pressure = 80Pa<br />
Define the air flow correction factor in TABLE 1<br />
below<br />
Correction factor = 0,55<br />
Calculation of cooling emission:<br />
From Diagram 1 define the “variation in %<br />
of the emission” using the correction factor<br />
calculated above<br />
For Total emission = 0,66<br />
For Sensible emission = 0,61<br />
Using the table at page 8 (up to page 17 for<br />
the different sizes) and having the following<br />
conditions:<br />
- Entering water temperature (°C) = 7<br />
- Water drop (°C) = 5<br />
The total emission with wet bulb air temperature,<br />
of 21°C is:<br />
Total emission = 7070W x 0,66 = 4666W<br />
The sensible emission with dry bulb air<br />
temperature of 29°C is:<br />
Sensible emission = 5292W x 0,61 = 3228W<br />
Calculation of heating emission:<br />
Same procedure as for the cooling emission<br />
using the Diagram 2 and the tables from<br />
page 18 a page 20.<br />
TABLE 1 - Air flow correction factors depending on requested available pressure<br />
Model<br />
MT 1<br />
MT 2<br />
MT 3<br />
MT 4<br />
MT 5<br />
4<br />
3<br />
2<br />
1<br />
4<br />
3<br />
2<br />
1<br />
4<br />
3<br />
2<br />
1<br />
4<br />
3<br />
2<br />
1<br />
4<br />
3<br />
2<br />
1<br />
Speed<br />
Super-<strong>High</strong><br />
<strong>High</strong><br />
Medium<br />
Low<br />
Super-<strong>High</strong><br />
<strong>High</strong><br />
Medium<br />
Low<br />
Super-<strong>High</strong><br />
<strong>High</strong><br />
Medium<br />
Low<br />
Super-<strong>High</strong><br />
<strong>High</strong><br />
Medium<br />
Low<br />
Super-<strong>High</strong><br />
<strong>High</strong><br />
Medium<br />
Low<br />
0<br />
1,13<br />
1,00<br />
0,84<br />
0,66<br />
1,07<br />
1,00<br />
0,86<br />
0,72<br />
1,15<br />
1,00<br />
0,86<br />
0,74<br />
1,17<br />
1,00<br />
0,83<br />
0,66<br />
1,13<br />
1,00<br />
0,85<br />
0,69<br />
20<br />
1,07<br />
0,93<br />
0,77<br />
0,61<br />
1,01<br />
0,94<br />
0,81<br />
0,69<br />
1,12<br />
0,97<br />
0,83<br />
0,72<br />
1,13<br />
0,97<br />
0,80<br />
0,64<br />
1,10<br />
0,97<br />
0,83<br />
0,67<br />
40<br />
1,02<br />
0,86<br />
0,71<br />
0,55<br />
0,95<br />
0,87<br />
0,76<br />
0,65<br />
1,08<br />
0,94<br />
0,79<br />
0,69<br />
1,10<br />
0,93<br />
0,78<br />
0,61<br />
1,07<br />
0,94<br />
0,82<br />
0,65<br />
Available pressure Pa<br />
60<br />
0,93<br />
0,80<br />
0,64<br />
0,48<br />
0,85<br />
0,79<br />
0,69<br />
0,62<br />
1,04<br />
0,91<br />
0,76<br />
0,65<br />
1,05<br />
0,89<br />
0,75<br />
0,58<br />
1,04<br />
0,91<br />
0,80<br />
0,64<br />
80<br />
0,84<br />
0,72<br />
0,55<br />
0,41<br />
0,77<br />
0,71<br />
0,62<br />
0,55<br />
1,00<br />
0,86<br />
0,72<br />
0,61<br />
1,00<br />
0,85<br />
0,72<br />
0,54<br />
1,01<br />
0,87<br />
0,78<br />
0,62<br />
100<br />
0,76<br />
0,62<br />
0,46<br />
0,31<br />
0,68<br />
0,62<br />
0,54<br />
0,47<br />
0,95<br />
0,80<br />
0,67<br />
0,56<br />
0,94<br />
0,79<br />
0,66<br />
0,49<br />
0,98<br />
0,84<br />
0,76<br />
0,61<br />
120<br />
0,67<br />
0,51<br />
0,38<br />
0,24<br />
0,59<br />
0,50<br />
0,44<br />
0,38<br />
0,89<br />
0,74<br />
0,63<br />
0,51<br />
0,87<br />
0,72<br />
0,59<br />
0,44<br />
0,94<br />
0,82<br />
0,73<br />
0,59<br />
140<br />
0,51<br />
0,39<br />
0,27<br />
0,15<br />
0,44<br />
0,37<br />
0,32<br />
0,25<br />
0,81<br />
0,67<br />
0,57<br />
0,47<br />
0,77<br />
0,65<br />
0,52<br />
0,39<br />
0,90<br />
0,79<br />
0,70<br />
0,56<br />
150<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
0,77<br />
0,63<br />
0,54<br />
0,44<br />
0,72<br />
0,61<br />
0,49<br />
0,36<br />
0,87<br />
0,78<br />
0,68<br />
0,54<br />
160<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
0,72<br />
0,60<br />
0,51<br />
0,42<br />
0,68<br />
0,56<br />
0,48<br />
0,32<br />
0,85<br />
0,77<br />
0,66<br />
0,52<br />
21