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Horizontal Economizer 1--in. (25 mm) Filter Pressure Drop (in. W.C.)

UNIT 577C --- --- A PRESSURE DROP

24--- 36 0.20

42--- 60 0.25

Wet Coil Air Delivery CFM -- Downflow -- High Speed with 1 -- in. (25 mm) Filter and Economizer

UNIT SIZE

EXTERNAL STA TIC PRESSURE (in. W.C.)

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

36 1333 1289 1256 1214 1152 1118 1076 1035 997 950

42 1612 1569 1527 1481 1451 1393 1351 1317 1278 1242

48 2166 2085 2002 1919 1798 1709 1582 1467 1270 988

60 2298 2239 2180 2110 2044 1951 1862 1777 1697 1591

GAS ADJUSTMENT

Natural Gas Orifice S izes and Manifold Pressure (in. W.C.)

Nameplate Input

(Btu/hr)

ALTITUDE OF INSTALLATION (FT. ABOVE SEA LEVEL) U.S.A.*

0 to 2000

( 0 --- 6 1 0 m )

2001 to 3000*

(611 to 914 m)

3001 to 4000

(915 to 1219 m)

4001 to 5000

(1220 to 1524 m)

5001 to 6000

(1524 to 1829 m)

40000

Orifice No. (Qty) 44 (2) 45 (2)† 48 (2)† 48 (2)† 48 (2)†

Manifold Press. 3.2 3.2 3.8 3.5 3.2

60000

Orifice No. (Qty) 38 (2) 41 (2)† 41 (2)† 42 (2)† 42 (2)†

Manifold Press. 3.6 3.8 3.4 3.4 3.2

90000

Orifice No. (Qty) 38 (3) 41 (3)† 41 (3)† 42 (3)† 42 (3)†

Manifold Press. 3.6 3.8 3.4 3.4 3.2

115000

Orifice No. (Qty) 33 (3) 36 (3)† 36 (3)† 36 (3)† 38 (3)†

Manifold Press. 3.8 3.8 3.6 3.3 3.6

130000

Orifice No. (Qty) 31 (3) 31 (3) 33 (3)† 33 (3)† 34 (3)†

Manifold Press. 3.8 3.2 3.7 3.4 3.3

*In the U.S.A., the input ra ting f or altitudes above 2000 ft (610m) must be reduced by 4% for each 1000 ft ( 305 m) above Sea level.

In Can a da, the input rating for altitudes from 2001 to 4500 ft (611 to 1372 m) above sea level must be dera ted by 10% by an auth orized gas conversion stationor

dealer.

For Canadian Installations from 2000 to 4500 ft (610 to 1372 m), use U.S.A. column 2001 to 3000 ft (611 to 914 m).

Note: Orifice sizes and manifold pressure settings are based on natural gas with a heating value of 1025 Btu/ft3 amd a specif ic gravity of .6.

† Orifices available through your distributor .

Propane Gas Orifice Sizes and Manifold Pressure (in. W.C.)

Nameplate

Input (Btu/hr)

ALTITUDE OF INSTALLATION (FT. ABOVE SEA LEVEL) U.S.A.*

0 to 2000

( 0 --- 6 1 0 m )

2001 to 3000*

(611 to 914 m)

3001 to 4000

(915 to 1219 m)

4001 to 5000

(1220 to 1524 m)

5001 to 6000

(1524 to 1829 m)

40000

Orifice No. (Qty) 55 (2) 56 (2) 56 (2) 56 (2) 56 (2)

Manifold Press. 10.0 11.0 11.0 11.0 10.7

60000

Orifice No. (Qty) 53 (2) 54 (2) 54 (2) 54 (2) 54 (2)

Manifold Press. 10.0 11.0 11.0 11.0 11.0

90000

Orifice No. (Qty) 53 (3) 54 (3) 54 (3) 54 (3) 54 (3)

Manifold Press. 10.0 11.0 11.0 11.0 11.0

115000

Orifice No. (Qty) 51 (3) 52 (3) 52 (3) 53 (3) 53 (3)

Manifold Press. 10.0 11.0 10.6 11.0 11.0

130000

Orifice No. (Qty) 49 (3) 50 (3) 51 (3) 52 (3) 52 (3)

Manifold Press. 10.0 11.0 11.0 11.0 11.0

*In the U.S.A., the input ra ting f or altitudes above 2000 ft (610m) must be reduced by 4% for each 1000 ft ( 305 m) above Sea level.

In Can a da, the input rating for altitudes from 2001 to 4500 ft (611 to 1372 m) above sea level must be dera ted by 10% by an auth orized gas conversion stationor

dealer.

For Canadian Installations from 2000 to 4500 ft (610---1372 m), use U.S.A. column 2001 to 3000 ft ( 611 to 914 m).

†Use Kit No. CPLPCONV013A00 (0---2000 ft [0---610 m] above sea level). Use Kit No. CPL PCONV014A00 (2001 ---6000 ft [611 ---1829 m] above sea level).

High Altitude Comp ensation, Propane Gas

Nameplate Input

(Btu/hr)

Rated Heating Input (Btu/hr), Propane Gas at Installation Altitude Above Sea Level, U.S.A.*

0 to 2000 ft

( 0 --- 6 1 0 m )

2001 to 3000 ft*

(611 to 914 m)

3001 to 4000 ft

(915 to 1219 m)

4001 to 5000 ft

(1220 to 1524 m)

5001 to 6000 ft

(1524 to 1829 m)

40000 38000 31700 31700 31700 31200

60000 53000 45900 45900 45800 45800

90000 79000 68900 68900 68600 68600

115000 103000 100400 98900 83000 83000

130000 116000 115500 111800 101300 100400

*In the U.S.A., the input ra ting f or altitudes above 2000 ft (610m) must be reduced by 4% for each 1000 ft ( 305 m) above Sea level.

In Can a da, the input rating for altitudes from 2001 to 4500 ft (611 to 1372 m) above sea level must be dera ted by 10% by an auth orized gas conversion stationor

dealer.

For Canadian Installations from 2000 to 4500 ft (610---1372 m), use U.S.A. column 2001 to 3000 ft ( 611 to 914 m).

High Altitude Compensation, Natural Gas

Nameplate

Input (Btu/hr)

Rated Heating Input (Btu/hr), Natural Gas at Installation Altitude Above Sea Level, U.S.A.*

0 to 2000 ft

( 0 --- 6 1 0 m )

2001 to 3000 ft*

(611 to 914 m)

3001 to 4000 ft

(915 to 1219 m)

4001 to 5000 ft

(1220 to 1524 m)

5001 to 6000 ft

(1524 to 1829 m)

40000 40000 36000 34400 32800 31200

60000 60000 54000 51600 49200 46800

90000 90000 81000 77400 73800 70200

115000 115000 103500 98900 94300 89700

130000 130000 117000 111800 106600 101400

*In the U.S.A., the input ra ting f or altitudes above 2000 ft (610m) must be reduced by 4% for each 1000 ft ( 305 m) above Sea level.

In Can a da, the input rating for altitudes from 2001 to 4500 ft (611 to 1372 m) above sea level must be dera ted by 10% by an auth orized gas conversion stationor

dealer.