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We reserve the right to make any changes due to technical modifications!
Installation, Operation and Maintenance Manual Sealed Combustion Gas Boiler Logano GA244 • Issue 02/2004
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
Gas Supply
8
Table 4 Equivalent length of pipe fittings in feet
The boiler must be isolated from the gas supply piping
system by closing its individual manual shut-off valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than ½ psi.
z
The boiler and its gas connection must be leak tested
before placing the boiler in operation. Refer to
Chapter 11 "Placing the Boiler in Operation",
page 26.
Pipe joint compound (pipe dope) must be resistant to
corrosive action of liquified petroleum gases and applied
sparingly only on male threads of pipe joints.
To field convert the boiler for operation with LP gas,
please contact Buderus Hydronic Systems to obtain the
proper components. Do not convert the boiler without
the proper parts and instructions. Parts for LP
conversion are included with the documents.
8.2
Installation at Higher Elevations
The boiler is factory set for operation with natural gas at
elevations up to 2,000 ft. The boiler must be derated for
installations above 2,000 ft. The derate is accomplished
by changing the main burner orifices. Contact your
supplier in this case to obtain the suitable high elevation
conversion kit (Natural gas or LP). Do NOT attempt to
derate the appliance without Buderus certified parts and
instructions.
Steel pipe
Diameter
(in Inch)
Equivalent Length for Pipe Fittings in
feet
Type of pipe fitting
90°-
Elbow
Tee
(flow
thru
branch)
Gate
valve
Gas
cocks
Equivalent length in feet
1/2
1.4
2.7
0.3
0.80
3/4
2.1
4.1
0.5
1.25
1
2.6
5.2
0.6
1.6
1 1/4
3.5
6.9
0.8
2.15
1 1/2
4.0
8.0
0.9
2.50
