6
D. Gas Piping
Each section of the 6/13-G Series Ovens (standard depth) is
rated at 40,000 BTU’s per hour (11.7 kW) or (deep depth)
46,000 BTU’s per hour (13.5 kW). Therefore, 38-40
(standard), 44-46 (deep) cubic feet of natural gas or 16
(standard), 18.4 (deep) cubic feet of propane gas per hour
must be supplied to each unit (stacked units count as two)
when the oven is full on. In order to achieve the degree of
performance for which the unit has been designed, the
overall piping plan of the kitchen, properly sized, is
essential. The installation of this oven must conform with all
local codes, or in the absence of any local codes, with the
National Fuel Gas Code, NFPA 54-1988 and ANSI Z 223.1-
1988.
Your local gas supplier should consult the National Fuel Gas
Code for proper sizing and installation of gas piping.
Generally, piping should be sized to provide a gas supply
sufficient to meet the maximum demand of all gas
appliances on a line without undue loss of pressure at the
outlet to the equipment. The total BTU requirements of the
equipment being served and the length of the piping from the
meter to the appliances are major considerations in the
proper design of the gas supply system.
This oven has been tested and certified for use on gas
systems which do not exceed 1/2 psi (3.45 kPa) of pressure.
If the piping system is tested at a pressure higher than 1/2 psi
(3.45 kPa), this oven should be isolated from the supply by
disconnecting it. If the piping system is tested at a pressure
lower than or equal to 1/2 psi (3.45 kPa), this oven should be
isolated from the supply by shutting off the manual shut off
valve located on the front panel.
MAXIMUM CAPACITY OF IRON PIPE IN CUBIC FEET
PER HOUR (PRESSURE DROP OF 0/5” W.C.) NATURAL
GAS
MAXIMUM CAPACITY OF PIPE IN
THOUSANDS OF BTU’S PER HOUR
OF UNDILUTED PROPANE GAS AT
11” W.C.
Length in
Feet
1/2” 3/4” 1” 1-1/2” 2”
Length
in Feet
1/2” 3/4” 1”
10 175 360 680 2100 3950 10 275 567 1071
20 120 250 465 1460 2750 20 189 393 732
30 97 200 375 1180 2200 30 152 315 590
40 82 170 320 990 900 40 129 267 504
50 73 151 285 900 1680 50 114 237 448
60 66 138 260 810 1520 60 103 217 409
70 61 125 240 750 1400 70 96 196 378
80 57 118 220 690 1300 80 86 185 346
90 53 110 205 650 1220 90 83 173 322
100 50 103 195 620 1150 100 78 162 307
From National Fuel Gas Code - Appendix C, Table C-4 From National Fuel Gas Code - Appendix C, Table C-16
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