October 2013
Intermediate to advanced
306 pages
12h 17m
English
Content preview from Estimating for Heating and Ventilating, 3rd Edition
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ESTIMATING LABOUR REQUIRED FOR ERECTION 139
Size of mains
Hours per pair
mm
in
fitter-welder and mate
32
H
1700
40
H
17-50
50 2
1800
65
Ά
18-50
80
3 1900
100 4
2000
125 5 20-50
150 6
21-50
Section 15
STEAM UNIT HEATERS FIXED AT HIGH LEVEL, AND
CONNECTED AS SHOWN IN FIGURE 12
32τηπΐ(ΐ
χ
CONDENSATE
MAIN
15mm(-j)CONDENSATE PIPE
15mm(y)UNION
15mm(j")STRA)NER
fl^*-15mm(y)BEND
Figure 12
Off load at site, panels, pipes, valves, fittings, hangers, and welding equipment, and
move to fixing position. Arrange scaffolding for fixing. Fix hangers and brackets.
Hoist up and hang panels. Measure up for connecting pipework. Weld flanges in
connectin
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