19
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C10999
Fig. 17 -- Gas Supply Line Piping with Thru--Base
13
12
11
10
9
8
7
6
5
4
3
2
1
C101006
Fig. 18 -- Gas Supply Line Piping
Table 4 – Typical
3
/
4
--in NPT Field Supplied Piping Parts
Item
Qty
Description
1
1
90 Deg Street Elbow
2
1
5 Inch Long Nipple
3
1
Ground---Joint Union
4
1
3 Inch Long Nipple
5
1
90 Deg Elbow
6
1
12 Inch Long Nipple
7
1
90 Deg Elbow
8
1
3 Inch Long Nipple
9
1
TEE
10
1
4 Inch Long Nipple (Sediment Trap)
11
1
Cap
12
1
3
1
/
2
Inch Long Nipple
13
1
NIBCO
R
Ball Valve (PN: GB30)
14
1
8 Inch Long Nipple
15
1
90 Deg Elbow
Install a gas supply line that runs to the unit heating
section. Refer to the NFPA 54/NFGC or equivalent code
for gas pipe sizing data. Do not use a pipe smaller than the
size specified. Size the gas supply line to allow for a
maximum pressure drop of 0.5--in wg (124 Pa) between
gas regulator source and unit gas valve connection when
unit is operating at high--fire flow rate.
The gas supply line can approach the unit in two ways:
horizontally from outside the unit (across the roof), or
through unit basepan. Observe clearance to gas line
components per Fig. 19.
LEGEND
*
Field supplied.
NOTE:
Follow all local codes.
NFGC –
National Fuel Gas Code
STEEL PIPE
NOMINAL DIAMETER
(in.)
SPACING OF SUPPORTS
X DIMENSION
(ft)
1
/
2
3
/
4
or 1
1
1
/
4
or larger
6
8
10
X
BASE UNIT
BASE RAIL
ROOF
CURB
9” MINIMUM CLEARANCE
FOR PANEL REMOVAL
MANUAL GAS
SHUTOFF VALVE
*
GAS
REGULATOR
*
48” MINIMUM
DRIP LEG
PER NFGC
*
FIELD-
FABRICATED
SUPPORT
*
FROM
GAS
METER
C11121
Fig. 19 -- Gas Piping Guide
580J
--
17
--
30
--
V
Содержание 580J Series
Страница 4: ...4 C13745 Fig 2 Unit Dimensional Drawing 17 and 20 Size Unit 580J 17 30 V ...
Страница 5: ...5 C13747 Fig 2 Unit Dimensional Drawing 17 and 20 Size Unit cont 580J 17 30 V ...
Страница 6: ...6 C13751 Fig 3 Unit Dimensional Drawing 24 and 28 Size Units 580J 17 30 V ...
Страница 7: ...7 C13753 Fig 3 Unit Dimensional Drawing 24 and 28 Size Units cont 580J 17 30 V ...
Страница 8: ...8 C13757 Fig 4 Unit Dimensional Drawing 30 Size Units 580J 17 30 V ...
Страница 9: ...9 C13759 Fig 4 Unit Dimensional Drawing 30 Size Units cont 580J 17 30 V ...
Страница 13: ...13 C09052 Fig 8 Roof Curb Details 17 and 20 Size Units 580J 17 30 V ...
Страница 14: ...14 C09100 Fig 9 Roof Curb Details 24 and 28 Size Units 580J 17 30 V ...
Страница 15: ...15 C11224 Fig 10 Roof Curb Details 30 Size Unit 580J 17 30 V ...
Страница 29: ...29 C13767 Fig 38 RTU Open System Control Wiring Diagram 580J 17 30 V ...
Страница 30: ...30 C13768 Fig 39 RTU Open System Control Wiring Diagram with Perfect Humidityt 580J 17 30 V ...
Страница 49: ...49 48TC 17 30 V 48TC 17 30 V 48TC 17 30 V 580J 17 30 V ...