York XT AHU - TABLE 7 - Natural Gas Pressure Requirements (Inches Wc)

JOHNSON CONTROLS
41
SECTION 2 - START-UP AND OPERATION
FORM 102.20-OM2
ISSUE DATE: 6/01/2015
2
TABLE 7 - NATURAL GAS PRESSURE REQUIREMENTS (INCHES WC)
MAXIMUM ALLOWABLE INLET PRESSURE MINIMUM INLET PRESSURE TO FIRE
NOMENCLATURE A03 U03 F03 R03 A10 U10 F10 R10 A25 U25 F25 R25 A03 U03 F03 R03 A10 U10 F10 R10 A25 U25 F25 R25
FEATURE
GAS
BTUS
GAS BURNER PIPING/GAS BURNER TD GASBURNER PIPING/ AS BURNER TD
OPTION
ANSI
3
UL
3
FM
3
IRI
3
ANSI
10
UL
10
FM
10
IRI
10
ANSI
25
UL
25
FM
25
IRI
25
ANSI
3
UL
3
FM
3
IRI
3
ANSI
10
UL
10
FM
10
IRI
10
ANSI
25
UL
25
FM 25
IRI
25
FUR-
NACE
OUTPUT
(X10K)
ANSI
3:1
UL
3:1
FM
3:1
IRI
3:1
ANSI
10:1
UL
10:1
FM
10:1
IRI
10:1
ANSI
25:1
UL
25:1
FM
25:1
IRI
25:1
FURNACE
OUTPUT
(X10K)
ANSI
3:1
UL
3:1
FM
3:1
IRI
3:1
ANSI
10:1
UL
10:1
FM
10:1
IRI
10:1
ANSI
25:1
UL
25:1
FM
25:1
IRI
25:1
015
14 N/A N/A N/A 27 N/A N/A N/A N/A N/A N/A N/A
015
4 N/A N/A N/A 13 N/A N/A N/A N/A N/A N/A N/A
020
14 N/A N/A N/A 27 N/A N/A N/A N/A N/A N/A N/A
020
4 N/A N/A N/A 13 N/A N/A N/A N/A N/A N/A N/A
025
14 N/A N/A N/A 27 N/A N/A N/A N/A N/A N/A N/A
025
4 N/A N/A N/A 13 N/A N/A N/A N/A N/A N/A N/A
030
14 N/A N/A N/A 27 N/A N/A N/A N/A N/A N/A N/A
030
4 N/A N/A N/A 13 N/A N/A N/A N/A N/A N/A N/A
035
N/A 14 N/A 27 N/A 27 N/A 27 N/A N/A N/A N/A
035
N/A 5 NA 4 N/A 4 N/A 4 N/A N/A N/A N/A
040
N/A 14 N/A 27 N/A 27 N/A 27 N/A 27 N/A 27
040
N/A 5 NA 5 N/A 5 N/A 5 N/A 18 N/A 18
045
N/A 14 N/A 27 N/A 27 N/A 27 N/A 27 N/A 27
045
N/A 5 NA 5 N/A 5 N/A 5 N/A 18 N/A 18
050
N/A 14 N/A 27 N/A 27 N/A 27 N/A 27 N/A 27
050
N/A 5 NA 5 N/A 5 N/A 5 N/A 18 N/A 18
060
N/A 27 N/A 27 N/A 27 N/A 27 N/A 27 N/A 27
060
N/A 6 NA 6 N/A 6 NA 6 N/A 19 N/A 19
075
N/A 27 N/A 27 N/A 27 N/A 27 N/A 27 N/A 27
075
N/A 6 NA 7 N/A 7 NA 7 N/A 19 N/A 19
085
N/A 27 N/A 27 N/A 27 N/A 27 N/A 27 N/A 27
085
N/A 9 NA 8 N/A 9 NA 8 N/A 19 N/A 19
100
N/A 27 N/A 27 N/A 27 N/A 27 N/A 27 N/A 27
100
N/A 11 NA 9 N/A 11 NA 9 N/A 20 N/A 20
125
N/A 27 N/A 27 N/A 27 N/A 27 N/A 27 N/A 27
125
N/A 8 NA 7 N/A 8 N/A 7 N/A 20 N/A 20
150
N/A 27 N/A 27 N/A 27 N/A 27 N/A 27 N/A 27
150
N/A 11 NA 9 N/A 11 N/A 9 N/A 20 N/A 20
175
N/A 27 N/A 27 N/A 27 N/A 27 N/A 55 N/A 55
175
N/A 15 NA 12 N/A 15 N/A 12 N/A 34 N/A 34
200
N/A 27 N/A 27 N/A 27 N/A 27 N/A 55 N/A 55
200
N/A 15 NA 12 N/A 15 N/A 12 N/A 38 N/A 38
225
N/A N/A 27 27 N/A N/A 27 27 N/A N/A 55 55
225
N/A N/A 8 11 N/A N/A 8 11 N/A N/A 34 34
250
N/A N/A 27 27 N/A N/A 27 27 N/A N/A 55 55
250
N/A N/A 8 11 N/A N/A 8 11 N/A N/A 35 35
275
N/A N/A 27 27 N/A N/A 27 27 N/A N/A 55 55
275
N/A N/A 11 10 N/A N/A 11 10 N/A N/A 39 39
300
N/A N/A 27 27 N/A N/A 27 27 N/A N/A 55 55
300
N/A N/A 11 11 N/A N/A 11 11 N/A N/A 40 40
325
N/A N/A 27 27 N/A N/A 27 27 N/A N/A 55 55
325
N/A N/A 8 9 N/A N/A 8 9 N/A N/A 41 41
350
N/A N/A 27 27 N/A N/A 27 27 N/A N/A 55 55
350
N/A N/A 8 9 N/A N/A 8 9 N/A N/A 48 48
375
N/A N/A 27 27 N/A N/A 27 27 N/A N/A 55 55
375
N/A N/A 8 10 N/A N/A 8 10 N/A N/A 49 49
400
N/A N/A 27 27 N/A N/A 27 27 N/A N/A 55 55
400
N/A N/A 9 10 N/A N/A 9 10 N/A N/A 48 48
Note: Gas pressure requirements at the inlet to the main manual shutoff cock of the gas train.