Thermann TH32END5L, Руководство по установке

Страница: 14 / 32

Thermann Installer’s Manual
Gas Continuous Flow Water Heaters
14
5. • Enter the input rating for each appliance in the
table below.
• Enter the length from each appliance to the
nearest tee in the outlet length in the table
below.
• Round up to the lengths in the appropriate
table on page 15-16. 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.
4. • Enter the demand which is the amount of gas
flowing through a section of pipe in the table
below.
• Enter the length for all pipe sections in the
table below.
• Round up to the lengths in the appropriate
table on page 15-16. 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.
Appliance Demand
Outlet
length
Size
Outlet 1
80 MJ/h 7 m 20 mm
Outlet 2
50 MJ/h 5 m 20 mm
Outlet 3
150 MJ/h 2 m 20 mm
Outlet 4
100 MJ/h 2 m 20 mm
(e.g.)
Appliance Demand
Outlet
length
Size
Outlet 1
Outlet 2
Outlet 3
Outlet 4
Section Demand Length Size
a b
Outlet 1+2+3+4=
380 MJ/h
12 m 40 mm
b c
Outlet 1+2=
130 MJ/h
4 m 20 mm
c d
Outlet 1=
80 MJ/h
7 m 20 mm
c e
Outlet 2=
50 MJ/h
5 m 20 mm
b f
Outlet 3+4=
250 MJ/h
8 m 25 mm
f g
Outlet 3=
150 MJ/h
2 m 20 mm
f h
Outlet 4=
100 MJ/h
2 m 20 mm
Section Demand Length Size
(e.g.)
Final Check
1. Turn on and operate all gas appliances including
the Water Heater.
2. Ensure that the inlet pressure of each appliance
is above the minimum pressure required for the
appliance.
NOTE • If all appliances are not receiving
the minimum inlet pressure, the
gas piping system may need to
be changed.
• As the gas inlet size varies
depending on the area, type of
gas, piping material, etc., more
details should be determined
after confirmation according to
AS/NZS 5601.1:2013.