39
Final Check
1. Turn on and operate all gas appliances including
the Water Heater.
2. Check the inlet pressure at each appliance
shall be such that the supply pressure at
the appliance is greater than or equal to the
minimum pressure required by the appliance.
NOTE
If all appliances are not receiving
the minimum inlet pressure, the
gas piping system may need to be
changed.
4. • Enter the demand is the amount of gas
flowing through a section of pipe in the table
below.
- For natural gas, use total Btu/h rating/1000
(ft
3
/h).
- For propane, use total Btu/h.
• For each section, determine the longest piping
from the point of delivery to the furthest
appliance through each section. Enter this
length for all pipe sections in the table below.
• Round up to the lengths in the appropriate
table on page 40. Read across until a capacity
equal to or greater than the required demand
for the section is found. Read up to find the
size. Repeat for each section of piping. Enter
this size in the table below.
5. • Enter the input rating for each appliance in the
table below.
- For natural gas appliances, enter the input
rating in Btu/h/1000 (ft
3
/h).
- For propane appliances, enter the input
rating in Btu/h.
• Enter the outlet length from each appliance to
the point of delivery in the table below.
• Round up to the lengths in the appropriate
table on page 40. Read across until a capacity
equal to or greater than the required demand
for the section is found. Read up to find the
size. Repeat for each appliance. Enter this size
in the table below.
Section
Demand The longest
length
Size
1
409.9
45 ft
1 in.
2
299.9
35 ft
1 in.
3
110
45 ft
3/4 in.
4
5
(e.g.)
Section
Demand The longest
length
Size
1
2
3
4
5
Appliance
Demand
Outlet
length
Size
Outlet A
35
45 ft
1/2 in.
Outlet B
75
40 ft
1/2 in.
Outlet C
199.9
35 ft
3/4 in.
Outlet D
100
35 ft
1/2 in.
(e.g.)
Appliance
Demand
Outlet
length
Size
Outlet A
Outlet B
Outlet C
Outlet D
Connecting the Gas Supply
Summary of Contents for GQ-C3260WX-FF PB US
Page 68: ......
