Pavilion PV199DV Installation Manual page 38

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 /h).
3
- 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 39. 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.
(e.g.)
Section Demand
409.9
1
299.9
2
110
3
4
5
Section Demand
1
2
3
4
5
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
- 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 39. 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.
(e.g.)
Appliance Demand
Outlet A
Outlet B
Outlet C
Outlet D
Appliance Demand
Outlet A
Outlet B
Outlet C
Outlet D
38
Connecting the Gas Supply
The longest
length
45 ft
35 ft
45 ft 3/4 in.
The longest
length
/h).
3
Outlet
length
35 45 ft 1/2 in.
75 40 ft 1/2 in.
199.9 35 ft 3/4 in.
100 35 ft 1/2 in.
Outlet
length
Final Check
1. Turn on and operate all gas appliances including
the Combi Boiler.
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
Size
1 in.
1 in.
Size
Size
Size
the minimum inlet pressure, the
gas piping system may need to be
changed.