36
S9V2-SVX001-1A-EN
Horizontal right furnace with gas piping out left side
Automatic Gas
Valve with
Manual Shut-o
Main Manual
Shut-o Valve
Ground
Union
Joint
Drip
Leg
Gas Line
Grommet
1/8” NPT
Test Fitting
Horizontal right furnace with gas piping out right side
Automatic Gas Valve
with Manual Shut-o
Main Manual
Shut-o Valve
Ground
Union
Join
t
Drip Leg
Gas Line
Grommet
1/8” NPT
Test Fitting
The upflow/horizontal furnace is shipped standard for
left side installation of gas piping. An opening with
plug is provided on the right side for an alternate gas
piping arrangement.
The installation of piping shall be in accordance with
piping codes and the regulations of the local gas
company. Pipe joint compound must be resistant to the
chemical reaction with liquefied petroleum gases.
IImmppoorrttaanntt:: If local codes allow the use of flexible gas
appliance connector, always use a new
listed connector. Do not use a connector
which has previously serviced another gas
appliance.
Refer to the piping table for delivery sizes. Connect gas
supply to the unit, using a ground joint union and a
manual shut-off valve. National codes require a
condensation drip leg to be installed ahead of the gas
valve.
The furnace and its individual shut-off valve must be
disconnected from the gas supply piping system
during any pressure testing of that system at test
pressures in excess of 1/2 psig (3.5 kPa).
The furnace must be isolated from the gas supply
piping by closing its individual manual shut-off valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than 1/2 psig
(3.5 kPa).
NNoottee:: Maximum pressure to the gas valve for natural
gas is 13.8" W.C. Minimum pressure is 5.0" W.C.
Maximum pressure to the gas valve for propane
is 13.8" W.C. Minimum pressure is 10.0" W.C.
NATURAL GAS ONLY
TABLE OF CUBIC FEET PER HOUR OF GAS
FOR VARIOUS PIPE SIZES AND LENGTHS
PIPE
SIZE
LENGTH OF PIPE
10 20 30 40 50 60 70
1/2 131 90 72 62 55 50 46
3/4 273 188 151 129 114 104 95
1 514 353 284 243 215 195 179
1–1/
4
1060 726 583 499 442 400 368
This table is based on Pressure Drop of 0.3 inch W.C. and 0.6 SP.
GR. Gas
All gas fittings must be checked for leaks using a soapy
solution before lighting the furnace. DDOO NNOOTT CCHHEECCKK
WWIITTHH AANN OOPPEENN FFLLAAMMEE!!
For propane conversions on all S-Series Furnaces, use
BAYLPSS400* conversion kit with stainless steel
burners.
When installing our furnaces in a manufactured house,
use Manufactured Housing Accessory Kit,
BAYMFGH200B.
ORIFICE SIZES
INPUT
RATING
BTUH
NUMBER OF
BURNERS
MAIN BURNER ORIFICE
DRILL SIZE
NAT. GAS PROPANE
GAS
40,000 2 45 56
60,000 3 45 56
80,000 4 45 56
100,000 5 45 56
120,000 6 45 56
FFuurrnnaaccee GGeenneerraall IInnssttaallllaattiioonn
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