PERFORMANCE DATA (cont)
Durablade Economizer Barometric
Relief Damper Characteristics Ð
Parablade Economizer Barometric
Relief Damper Characteristics Ð
Parablade Economizer Barometric
Relief Damper Characteristics Ð
ALTITUDE COMPENSATION* Ð
| 72,000 AND 115,000 | 150,000 BTUH | |||
| BTUH NOMINAL | ||||
| NOMINAL INPUT | ||||
|
| INPUT | |||
ELEVATION |
|
|
| ||
(ft) | Natural |
| Liquid | Natural | Liquid |
Gas |
| Propane | Gas | Propane | |
|
| ||||
| Ori®ce |
| Ori®ce | Ori®ce | Ori®ce |
| Size² |
| Size² | Size² | Size² |
33 |
| 43 | 30 | 38 | |
2,000 | 34 |
| 43 | 30 | 39 |
3,000 | 35 |
| 44 | 31 | 40 |
4,000 | 36 |
| 44 | 32 | 41 |
5,000 | 36 |
| 44 | 33 | 42 |
6,000 | 37 |
| 45 | 34 | 43 |
7,000 | 37 |
| 45 | 35 | 43 |
8,000 | 38 |
| 46 | 36 | 44 |
9,000 | 39 |
| 47 | 37 | 44 |
10,000 | 41 |
| 48 | 38 | 45 |
11,000 | 43 |
| 48 | 39 | 45 |
12,000 | 44 |
| 49 | 40 | 46 |
13,000 | 44 |
| 49 | 41 | 47 |
14,000 | 45 |
| 50 | 42 | 47 |
|
|
|
|
|
|
*As the height above sea level increases, there is less oxygen per cubic foot of air. Therefore, heat input rate should be reduced at higher altitudes.
²Ori®ces available through your local distributor.
53