October 2013
Intermediate to advanced
306 pages
12h 17m
English
Content preview from Estimating for Heating and Ventilating, 3rd Edition
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136 ESTIMATING LABOUR REQUIRED FOR ERECTION
Section 11
CONCEALED HOT WATER CEILING PANELS
15 mm (I in) pipes at 150 mm (6 in) centres (see Figure 9)
15mm(£)LOCKSHIELD RETURN VALVE
3mm
(-g-")
AIR
COCK
s
EMBEDDED CEILING PANEL
15mm(?") PIPES AT 150mm (6")
C
ENTRES
15mm(j)FLOW CONNECTION-
10mm (§")EMPTY COCK WITH HOSE UNION
15mm(t) FLOW WHEEL VALVE WITH EXTENDED SPINDLE
FLOW AND RETURN RISERS TO PANELS -
Figure 9
A. Off load at site, panels, pipe, fittings, and valves, and move to fixing position.
Lay panel on first floor shuttering, level and secure. Fit or weld two tees in risers,
and fit valves, empty cock and air cock. Remove end caps, joint
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