Working in a partially occupied building is always difficult and |
||
required open lines of communication with the occupants . |
||
All parties had to ensure a seamless , covid-friendly transition |
||
from occupied space to site and back to occupied space in a |
||
very short period . |
||
Limited availability of existing as-built drawings made |
||
pre-contract planning of vital importance to ensure |
||
everything would fit as was intended . The ceiling void was |
||
designed for small refrigerant pipes , not larger chilled |
||
water pipes . With some clever engineering , the team could |
||
optimise riser locations to keep the pipes in the ceiling void to |
||
the smaller diameters . |
||
The type of composite pipe specified for use in the void |
||
was crucial to this project ’ s success as it required no hot works |
||
or welding , does not sag under warmer temperatures , and |
||
increased the speed of installation ultimately enabling the |
||
team to meet the very tight deadline . |
||
The limited plant space on the roof also proved difficult |
||
to navigate , however , with the aid of Revit and AUG |
||
( Augmentecture ) the LCE and Coldfact Projects ( CP ) team |
||
was able to install a 1200kW plant with two large air handling |
||
units in the same space that was previously fully occupied by a |
||
250kW VRV system and two heat recovery wheels . |
||
www . hvacronline . co . za |
RACA Journal
I September 2021
|
45 |