Bryant EVOLUTION 577D----A Manual de usuario descargar pdf (Pagina 18)

PERFORMANCE DATA (CONT)

LEGEND

BF— B y pass Factor

edb— Entering Dry---Bulb

Ewb — Entering Wet--- Bulb

kW — Total Unit Power Input

ldb— Leaving Dry---Bulb

lwb— Leaving Wet--- Bulb

SHC — Sensible Heat Capacity (1000 Btuh)

TC — Total Capacity (1000 Btuh) (net)

ECM — Electronic Computated Motor

*At 75_F (23.85C ) entering dry bulb (Tennessee Valley Authority

[TVA] rating conditions); all other at 80_F (26.6_C) entering dry

bulb.

NOTES:

1. Ratings are net; they account for the effects of the

evaporator--- fan motor power and heat.

2. Direct interpolation is permissible. Do not extrapolate.

3. The following formulas may be used:

Sensible capacity (Btuh)

1.10 x cfm

ldb =

edb

Wet---bulb temperature corresponding to enthalpy

air leaving evaporator coil (

lwb)

lwb =

total capacity (Btuh)

4.5 x cfm

lwb =

e w b ---

Where:

ewb = Enthalpy of air entering evaporator coil

4. The SHC is based on 80_F (26.65C) edb temperature of air

entering evaporator coil. Below 80_F (26.6_C) edb, subtract (corr

factor x cfm) from SHC.

Above 80_F (26.6_C) edb, add (corr factor x cfm) to SHC.

Correction Factor = 1.10 x (1 + BF) x (edb --- 80).

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

Nameplate

Input,

High Stage

(Btu/hr)

ALTITUDE OF INST ALLATION (FT. [m] ABOVE SEA LEVEL) U .S.A.*

0 to 2000

[0 to 610]

2001 to

3000*

[610 to 914]

3001 to 4000

[915 to 1219]

4001 to 5000

[1220 to 1524]

5001 to 6000

[1524 to 1829]

40000

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

Manifold Press. High / Low 3.2 /1.4 3.2 /1.4 3.8 /1.6 3.5 /1.5 3.2 /1.4

60000

Orifice No. (Qty) 44 (3) 45 (3)† 48 (3)† 48 (3)† 48 (3)†

Manifold Press. High / Low 3.2 /1.4 3.2 /1.4 3.8 /1.6 3.5 /1.5 3.2 /1.4

90000

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

Manifold Press. High / Low 3.6 /1.6 3.8 /1.6 3.4 /1.5 3.4 /1.5 3.2 /1.4

115000

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

Manifold Press. High / Low 3.8 /1.7 3.8 /1.7 3.6 /1.6 3.3 /1.4 3.6 /1.5

130000

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

Manifold Press. High / Low 3.8 /1.7 3.2 /1.4 3.7 /1.6 3.4 /1.4 3.3 /1.4

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

In Canada, the input rating for altitudes from 2001 to 4500 ft (611 to 1372 m) above sea level must be derated by 10% by an authorized gas conversion stationor

dealer.

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

† Orifices available through your distributor.

NOTE: Orifice sizes and manifold pressure settings are based on natural gas with a heating value of 1025 Btu/ft

and a specific gravity of .6.

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

Nameplate

Input,

High Stage

(Btu/hr)

ALTITUDE OF INST ALLATION (FT. [m] ABOVE SEA LEVEL) U .S.A.*†

0 to 2000

[0 to 610]

2001 to 3000*

[610 to 914]

3001 to 4000

[915 to 1219]

4001 to 5000

[1220 to 1524]

5001 to 6000

[1524 to 1829]

40000

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

Manifold Press. High / Low 10.0/5.0 11.0/6.0 11.0/5.5 11.0/5.0 10.7/4.8

60000

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

Manifold Press. High / Low 10.0/5.0 11.0/6.0 11.0/5.5 11.0/5.0 10.7/4.8

90000

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

Manifold Press. High / Low 10.0/5.4 11.0/6.4 11.0/5.9 11.0/5.4 11.0/5.0

115000

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

Manifold Press. High / Low 10.0/5.4 11.0/5.0 10.6/4.8 11.0/6.1 11.0/5.5

130000

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

Manifold Press. High / Low 10.0/5.4 11.0/4.8 11.0/4.9 11.0/5.2 11.0/5.0

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

In Canada, the input rating for altitudes from 2001 to 4500 ft (611 to 1372 m) above sea level must be derated by 10% by an authorized gas conversion stationor

dealer.

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

†

Use Kit No. CPLPCONV013A00 (0--- 2000 ft [0--- 610 m] above sea level. Use Kit No. CPLPCONV014A00 (2001---6000 ft [611--- 1829 m] abo ve sea level.

577D-- -- A

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Bryant EVOLUTION 577D----A Manual de usuario Pagina 18

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