Tender: Cooling Tower Replacement, State Library and Sydney Hospital, Parliament with diesel back up

First 11 of 11 paragraphs shown Close Date & Time: 24 August 2010 at 9:30am.
The Parliament is a working building, the air conditioning central plant supplies not only the Parliament but the State Library and Sydney Hospitals. The work is to be undertaken in a manner to ensure that there are no interruptions to services for the 3 organisations. The Contractor is responsible for the design of the installation.
The replacement of the cooling towers shall be staged such that the condenser water system shall remain operational to provide sufficient capacity to cater for the building load.
The selections of the new cooling towers are based on an additional 25% heat rejection capacity to allow for future expansion of the existing chilled water plant. The cooling tower fans shall be set to operate at reduced speed via its variable speed drive control to meet the current heat rejection requirements. However it will have the capacity to operate at full speed if full heat rejection capacity is required.
The existing water treatment, water supply, electrical supply and drainage shall be modified to suit the new equipment.
The existing 60,000 Litre rainwater storage tank provides makeup water to Cooling Tower 1A. The new cooling tower 1A shall be connected to the 60,000 Litre rainwater storage tank.
Cooling tower 1A and 4 be connected to the existing essential services switchboard, so that they are able to operate on back diesel generator power.
The existing Alerton's BMC system shall be updated to reflect the new control strategy, layouts, trend logs etc.
It is noted that there are a few areas where the Architectural Documents were not up to date. Every effort was made to rectify the issues. The Design of the cooling tower replacement has generally addressed the revised layouts. There will however be some areas that require on site coordination. This issue will be addressed during the construction phase by way of workshop drawings and onsite confirmation

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