Propane Gas Tanks And Piping - Amana M8 Installation Instructions Manual

T
O AVOID THE POSSIBILITY OF EXPLOSION OR FIRE
OR OPEN FLAME TO TEST FOR LEAKS
Check for leaks using an approved chloride-free soap and water
solution, an electronic combustible gas detector, or other approved
testing methods.
NOTE: Never exceed specified pressures for testing. Higher pressure
may damage the gas valve and cause subsequent overfiring,
resulting in heat exchanger failure.
Disconnect this unit and shutoff valve from the gas supply piping
system before pressure testing the supply piping system with pres-
sures in excess of 1/2 psig (3.48 kPa).
This unit must be isolated from the gas supply system by closing
its manual shutoff valve before pressure testing of gas supply
piping system with test pressures equal to or less than 1/2 psig
(3.48 kPa).
P G T P
ROPANE AS ANKS AND
I
F THE GAS FURNACE IS INSTALLED IN A BASEMENT
,
AREA OR CONFINED SPACE IT IS STRONGLY RECOMMENDED TO
CONTACT A PROPANE SUPPLIER TO INSTALL A GAS DETECTING WARNING
DEVICE IN CASE OF A GAS LEAK
S
•
INCE PROPANE GAS IS HEAVIER THAN AIR
SETTLE IN ANY LOW AREAS OR CONFINED SPACES
P
•
ROPANE GAS ODORANT MAY FADE
EXCEPT WITH A WARNING DEVICE
A gas detecting warning system is the only reliable way to detect a
propane gas leak. Rust can reduce the level of odorant in propane
gas. Do not rely on your sense of smell. Contact a local propane
gas supplier about installing a gas detecting warning system. If
the presence of gas is suspected, follow the instructions in the
Safety Considerations section of this manual.
All propane gas equipment must conform to the safety standards
of the National Board of Fire Underwriters, NBFU Manual 58.
For satisfactory operation, propane gas pressure must be 10 inch
WC at the furnace manifold with all gas appliances in operation.
Maintaining proper gas pressure depends on three main factors:
1. Vaporization rate, depending on temperature of the liquid,
and "wetted surface" area of the container or containers.
2. Proper pressure regulation. (Two-stage regulation is
recommended for both cost and efficiency).
WARNING
,
NEVER USE A MATCH
.
IPING
WARNING
,
AN EXCAVATED
.
,
ANY LEAKING GAS CAN
.
,
MAKING THE GAS UNDETECTABLE
.
3. Pressure drop in lines between regulators, and between
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 vaporization, rec-
ommended regulator settings, and pipe sizing is available from
most regulator manufacturers and propane gas suppliers.
Use a pipe thread compound that is approved for natural gas and
LP gas.
Refer to the following illustration for typical propane gas instal-
lations and piping.
First Stage
Regulator
200 PSIG
Maximum
Propane Gas Installation (Typ.)
P G P C
ROPANE AS IPING HARTS
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.
Pipe or
Tubing Size, O.D. Type L
Tubing
Length,
3/8" 1/2"
Feet
10 730 1,700
20 500 1,100
30 400 920
40 370 850
50 330 770
60 300 700
80 260 610
100 220 540
125 200 490
150 190 430
175 170 400
200 160 380
Sizing Between Second Stage and Appliance Regulator*
Maxim um Propane Capacities lis ted are bas ed on 2 ps ig pres s ure drop at 10 ps ig s etting.
Capacities in 1,000 BTU /hour.
Pipe or
Tubing Size, O.D. Type L
Tubing
Length,
3/8" 1/2" 5/8"
Feet
10 39 92 199
20 26 62 131
30 21 50 107
40 19 41 90
50 18 37 79
60 16 35 72
80 13 29 62
100 11 26 55
125 10 24 48
150 9 21 43
200 8 19 39
250 8 17 36
19
5 to 15 PSIG
(20 PSIG Max.)
Continuous
11" W.C.
Second Stage
Regulator
Nominal Pipe Size
5/8" 3/4" 7/8"
3,200 5,300 8,300 3,200
2,200 3,700 5,800 2,200
2,000 2,900 4,700 1,800
1,700 2,700 4,100 1,600
1,500 2,400 3,700 1,500
1,300 2,200 3,300 1,300
1,200 1,900 2,900 1,200
1,000 1,700 2,600 1,000
900 1,400 2,300
830 1,300 2,100
780 1,200 1,900
730 1,100 1,800
Nominal Pipe Size
S chedule 40
3/4" 7/8" 1-1/8" 1/2" 3/4" 1"
329 501 935 275 567 1,071
216 346 630 189 393 732
181 277 500 152 315 590
145 233 427 129 267 504
131 198 376 114 237 448
121 187 340 103 217 409
104 155 289 89 185 346
90 138 255 78 162 307
81 122 224 69 146 275
72 109 202 63 132 252
66 100 187 54 112 209
60 93 172 48 100 185
Schedule 40
1/2" 3/4"
7,500
4,200
4,000
3,700
3,400
310
2,600
2,300
900 2,100
830 1,900
770 1,700
720 1,500
1-1/4" 1-1/2"
2,205 3,307
1,496 2,299
1,212 1,858
1,039 1,559
913 1,417
834 1,275
724 1,066
630 976
567 866
511 787
439 665
390 590