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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

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