Installation
6
Installation instructions Logamax plus GB142-24/30/45/60 • version 10/2007
13
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Buderus • http://www.buderus.net
z
Use the radiator key to unlock the two latches a quarter
turn (fig. 7, pos. 1).
z
Open the latches (fig. 7, pos. 2).
z
Remove the casing by lifting it upwards and then pulling
it forwards (fig. 7, pos. 3); do not hold the casing by the
latches.
z
Hold the boiler by the rear boiler casing and place it on
the wall bracket.
z
Level out the boiler.
6.3
Making the gas connection
z
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.
z
Install the furnished ¾” gas cock on the gas connection.
z
Connect the gas pipe to the gas cock (fig. 8, pos. 1) so
that it is free from any strain.
A sediment trap must be provided upstream of the gas
controls.
Fig. 7
Removing the casing
1
2
2
2
2
3
Fig. 8
Making the gas connection
1
DANGER
Only carry out work on gas lines if you are
licensed for such work.
Length of
pipe (feet)
Gas Volume Capacity
(ft
3
/ hr)
1
¾"
1"
1 ¼"
1 ½"
10
278
520
1,060
1,600
20
190
350
730
1,100
30
152
285
590
890
40
130
245
500
760
50
115
215
440
670
75
93
175
360
545
100
79
160
305
480
150
64
120
250
380
Table 2
Gas Pipe Capacity for different pipe sizes
1
Maximum pipe capacity in ft
3
/hr, based on a specific gravity of
.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)
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.