Trane Gas Unit Heaters Instalační manuál stáhnout pdf (Strana 29)

Operation

GUNE-SVX001A-EN 29

Tubular Duct Furnace—High Altitude

Deration

This tubular duct furnace has been manufactured utilizing

standard burner orifices and a normal manifold pressure

setting as per the specifications shown on your unit rating

plate.

All unit deration must be done through field adjustments

by a qualified technician. Once the proper adjustments are

made in the field, attach label #J17-06459 to the unit, and

record adjusted manifold pressure, altitude of the unit

installation, the technician’s name, and the date on the

label using a permanent marker.

Refer to “Adjusting Gas Pressure,” p. 28 for adjusting the

manifold pressure.

Table 10. High altitude deration—United States

Altitude

Manifold Pressure

BTU Output

(a)

Natural Gas

(b)

Liquid Propane

(c)

Feet Meters Inches wc Pa Inches wc Pa Percentage

0–2,000 0–610 3.5 872 10.0 2491 100%

2,001–3,000 611–915 3.2 797 9.2 2292 96%

3,001–4,000 916–1,220 2.9 722 8.4 2092 92%

4,001–5,000 1,221–1,525 2.7 673 7.7 1918 88%

5,001–6,000 1,526–1,830 2.4 598 7.0 1744 84%

6,001–7,000 1,831–2,135 2.2 548 6.4 1594 80%

7,001–8,000 2,136–2,440 2.0 498 5.7 1420 76%

8,001–9,000 2,441–2,745 1.8 448 5.1 1270 72%

9,001–10,000 2,746–3,045 1.6 399 4.6 1145 68%

Note: Consult local utility for actual heating value.

(a)Deration based on ANSI Z223.1 (NFPA 54).

(b)Table based on heating value of 1,050 Btu/ft

at sea level.

feet at sea level.

Table 11. High altitude deration —Canada

Altitude

Manifold Pressure

BTU Output

(a)

Natural Gas

(b)

Liquid Propane

(c)

Feet Meters Inches wc Pa Inches wc Pa Percentage

0–2,000 0–610 3.5 872 10.0 2491 100%

2,001–3,000 611–915 3.2 797 9.2 2292 96%

3,001–4,000 916–1,220 2.9 722 8.4 2092 92%

4,001–5,000 1,221–1,371 2.8 697 7.9 1968 90%

Note: Consult local utility for actual heating value.

(a)Deration based on CGA 2.17-M91.

(b)Table based on heating value of 1,050 Btu/ft

feet at sea level.

at sea level.

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 38 39

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