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Horizontal right furnace with gas piping out left side
Gas Line
Grommet
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.
I I m m p p o o r r t t a a n n t t : : 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).
N N o o t t e e : : 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.
A952V-SVX001-1B-EN
Main Manual
Shut-o Valve
Ground
1/8" NPT
Union
Test Fitting
Joint
Drip Leg
Automatic Gas
Valve with
Manual Shut-o
F F u u r r n n a a c c e e G G e e n n e e r r a a l l I I n n s s t t a a l l l l a a t t i i o o n n
Horizontal right furnace with gas piping out right side
Gas Line
Grommet
NATURAL GAS ONLY
TABLE OF CUBIC FEET PER HOUR OF GAS
FOR VARIOUS PIPE SIZES AND LENGTHS
PIPE
SIZE
10
20
1/2
131
90
3/4
273
188
1
514
353
1–1/
1060
726
4
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. D D O O N N O O T T C C H H E E C C K K
W W I I T T H H A A N N O O P P E E N N F F L L A A M M E E ! !
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
NUMBER OF
RATING
BURNERS
BTUH
40,000
2
60,000
3
80,000
4
100,000
5
120,000
6
Automatic Gas Valve
with Manual Shut-o
Ground
Main Manual
Union
Shut-o Valve
Joint
Drip Leg
1/8" NPT
Test Fitting
LENGTH OF PIPE
30
40
50
60
72
62
55
50
151
129
114
104
284
243
215
195
583
499
442
400
MAIN BURNER ORIFICE
DRILL SIZE
NAT. GAS
PROPANE
GAS
45
56
45
56
45
56
45
56
45
56
70
46
95
179
368
35
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