Download ACGS - HKFEMC

Emergency stops shall be provided adjacent to each of the pump and
fan unit.
Local and remote control panels shall be provided for the water
scrubber systems at location as shown on the Drawings. Local/remote
selector switch shall be provided at the local panels for choice of
control mode. In "remote" mode, the water scrubber system shall be
started or stopped via manual push buttons at the remote control panel.
The scrubber exhaust fan shall be interlocked with the recycle pumps’
operation such that it will not be operative unless the recycle pumps
are operating.
In "Local" mode, the fan and pumps shall be operated by means of
start/stop buttons at the local control panel.
The following minimum facilities shall be provided at the local
control/starter panel:-
t
- Power on indication – green;
- Local/remote selector;
ra
f
- Recycle pumps sequence selector;
- Start and stop push buttons for fan and pumps;
- Hour run meters for fan;
- Running (blue) and fault (red) indication for fan and pumps;
- Ammeters for fan;
D
- Low level alarms (red) for each chemical tank;
- Low level alarm (red) for the water scrubber chamber; and
- No flow alarm (red) for the feed-in water pipe section.
C1.19
WASHING FACILITIES FOR WASHABLE FILTER
Where washable filters are provided, the Contractor shall provide one set of
duplicate cleaning tanks (one to wash, one to rinse). These tanks shall be big
enough to accommodate the various filters sizes provided, subject to the
approval of the Architect or if the Contractor wishes several sets of tanks may be
provided to accommodate the various filter sizes provided.
The filter cleaning tanks shall be constructed of at least 1 mm thick stainless
steel of AISI 316 and suitably stiffened around the top edges by continuous
external turned over inverted "U" sections. The tanks shall be 0.4 m deep. They
shall be supplied with 18 mm drain down cock for emptying but shall also have
external handles to facilitate turning over to clear sludge.
Section C1
Page 24 of 25
AC_GS
2012 Edition