Making The Gas Connection - Buderus logamax plus gb142-24 Installation Manual

Use the radiator key to unlock the two latches a quarter
turn (fig. 7, pos. 1).
Open the latches (fig. 7, pos. 2).
Remove the casing by lifting it upwards and then pulling
it forwards (fig. 7, pos. 3); do not hold the casing by the
latches.
Hold the boiler by the rear boiler casing and place it on
the wall bracket.
Level out the boiler.
6.3

Making the gas connection

DANGER
Only carry out work on gas lines if you are
licensed for such work.
Determine proper size gas pipe for the installation using
see table 2 and see table 3. Do not forget the pipe fitting
losses and observe proper size of the fittings.
Install the furnished ¾" gas cock on the gas connection.
Connect the gas pipe to the gas cock (fig. 8, pos. 1) so
that it is free from any strain.
NOTICE
When installing the gas supply connection, it
must comply with local regulations or, if such
regulations do not exist, with the National Fuel
Gas Code, ANSI Z 223.1.
In Canada, the gas supply connection must
comply with local regulations or, if such regula-
tions do not exist, with CAN/CSA B149.1,
Natural Gas and Propane Installation Code.
A sediment trap must be provided upstream of the gas
controls.
We reserve the right to make any changes due to technical modifications!
Installation instructions Logamax plus GB142-24/30/45/60 • version 10/2007
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Fig. 7 Removing the casing
1
Fig. 8 Making the gas connection
Length of Gas Volume Capacity
pipe (feet)
¾"
10 278
20 190
30 152
40 130
50 115
75 93
100 79
150 64
Table 2 Gas Pipe Capacity for different pipe sizes
1 Maximum pipe capacity in ft
.60 (42 mbar) and a inlet gas pressure of 14 inches W.C.
(35 mbar) or less and a pressure drop of .3 inches W.C. (20 mbar)
Installation
2
1
2
3 1
(ft / hr)
1" 1 ¼" 1 ½"
520 1,060 1,600
350 730 1,100
285 590 890
245 500 760
215 440 670
175 360 545
160 305 480
120 250 380
3
/hr, based on a specific gravity of
Buderus • http://www.buderus.net
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