SYSTEM OPERATION
20
3. Pressure drop in lines between regulators, and be-
tween second stage regulator and the appliance. Pipe
size will depend on length of pipe run and total load of
all appliances.
Complete information regarding tank sizing for vaporiza tion,
recommended regulator settings, and pipe sizing is avail-
able from most regulator manufacturers and propane gas
suppliers.
Use pipe dope approved for use with L.P. gas.
Refer to the following illustration for typical propane gas in-
stallations and piping.
200 PSIG
Maximum
5 to 15 PSIG
(20 PSIG Max.)
Continuous
11" W.C.
Second Stage
Regulator
First Stage
Regulator
Typical Propane Gas Installation
WARNING
If the gas furnace is installed in a basement, an excavated
area or confined space, it is strongly recommended to con
-
tact a propane supplier to install a gas detecting warning
device in case of a gas leak.
•
Since propane gas is heavier than air, any leaking gas
can settle in any low areas or confined spaces.
•
Propane gas odorant may fade, making the gas undetect
-
able except with a warning device.
WARNING
An undetected gas leak will create a danger of explosion or
fire. If the presence of gas is suspected, follow the instruc
-
tions on the cover of this manual. Failure to do so could
result in SERIOUS PERSONAL INJURY OR DEATH.
WARNING
If the information in these instructions is not followed
exactly, a fire or explosion may result causing property dam
-
age, personal injury or loss of life.
- do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS:
•
Do not try to light any appliance.
•
Do not touch any electrical switch; do not use any
phone in your building.
•
Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions. If you
cannot reach your gas supplier, call the fire depart
-
ment.
- Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
3/8"
1/2"
5/8"
3/4"
7/8"
1/2"
3/4"
10
730
1,700
3,200
5,300
8,300
3,200
7,500
20
500
1,100
220
3,700
5,800
2,200
4,200
30
400
920
2,000
2,900
4,700
1,800
4,000
40
370
850
1,700
2,700
4,100
1,600
3,700
50
330
770
1,500
2,400
3,700
1,500
3,400
60
300
700
1,300
2,200
3,300
1,300
3,100
80
260
610
1,200
1,900
2,900
1,200
2,600
100
220
540
1,000
1,700
2,600
1,000
2,300
125
200
490
900
1,400
2,300
900
2,100
150
190
430
830
1,300
2,100
830
1,900
175
170
400
780
1,200
1,900
770
1,700
200
160
380
730
1,100
1,800
720
1,500
Pipe or
Tubing
Length
Feet
Tubing Size, O.D. Type L
Nominal Pipe
Size
Schedule 40
Sizing Between First and Second Stage Regulator*
Maximum Propane Capacities listed are based on 2 psig pressure drop at 10 psig setting.
Capacities in 1,000 BTU/hour.
To convert to capacities at 15 psig settings - multiply by 1.130
To convert to capacities at 5 psig settings - multiply by 0.879
3/8"
1/2" 5/8"
3/4"
7/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
10
39
92
199
329
501
275
567
1,071 2,205 3,307
20
26
62
131
216
346
189
393
732 1,496 2,299
30
21
50
107
181
277
152
315
590
1,212 1,858
40
19
41
90
145
233
129
267
504 1,039 1,559
50
18
37
79
131
198
114
237
448
913
1,417
60
16
35
72
1,211 187
103
217
409
834
1,275
80
13
29
62
104
155
89
185
346
724
1,066
100
11
26
55
90
138
78
162
307
630
976
125
10
24
48
81
122
69
146
275
567
866
150
9
21
43
72
109
63
132
252
511
787
200
8
19
39
66
100
54
112
209
439
665
250
8
17
36
60
93
48
100
185
390
590
Pipe or
Tubing
Length
Feet
Tubing Size, O.D. Type L
Nominal Pipe Size
Schedule 40
*Data in accordance with NFPA pamphlet No. 54
Sizing Between Second or Second Stage Regulator & Appliance*
Maximum Propane Capacities listed are based on 1/2" W.C. pressure drop at 11" W.C. setting.
Capacities in 1,000 BTU/hour.
Propane Gas Piping Charts
