The third floor contains a night duty room, since the blood supply ser- vice must function 24 hours a day, and a teaching and control laboratory for formal training of blood technicians and random checking of samples and general quality control.
The internal needs of the centre are supplied by the sterilizing group where blood bottles, phials etc. are washed and sterilized and by the provision of stores, a doctor's room and super- visor's room at the ground floor and taff room and toilets at the first floor.
Construction
The structure is essentially a rein- orced concrete frame on conventional ootings with round columns and flat labs. The round columns show two ypes of finish: 'mirror' finish with the oncrete cast in gloss painted form- vork to give a very smooth result, and fairfaced', with the concrete cast in imber formwork, giving a board mark- d finish.
In all cases, these columns are left infinished to cut down on mainten- nce costs. The floor slabs appear ex- ernally as 2ft. 10in. deep but are in act 6in. thick generally, with 15in. eep beam strips and dropped slabs on levation to the false ceiling level. loped roofs, over the entrance hall nd the top floor, are 12in. thick slabs, ghtened by cast-in 8in. hollow con- rete blocks.
Roofs slabs are cast in waterproof oncrete and finished with a layer of eavy duty waterproof screed. Peri- eter walls below general ground level r where earth is banked against them re cast in 8in. thick waterproof con- jete. Non-structural concrete sun- reakers of various types have been laced on the faces of the building to it the orientation and protect the indow walls from sun and rain.
Hervices
the air-conditioning system con- of normal comfort air-condition- g for the office areas and labora- ries, supplied by a direct expansion ir-cooled condensing unit and a multi- one air handling unit, designed to , aintain conditions of 75°F and
5-66% RH.
The most important mechanical in- allation in the centre is the five ld rooms, for storage of blood, asma and other products vital to the ,ood services. There are two cold oms at 11°C (50°F), two at 4°C
r East BUILDER, March 1971
Main hall seen from the first floor reception area
(39.2°F) and one at -22°C (-6.6°F) and to ensure that the stored products do not deteriorate it is essential that the cold rooms maintain these tem- peratures 24 hours a day without fail- ure. To ensure this the condensing units, and the fan coil units in each room, have been duplicated to provide standby arrangements. The controls are wired so that, in the event of the duty units failing, the standby units come into service automatically.
There are temperature recorders and alarms outside each room and fur- ther visual and audible alarms have been provided in the supervisor's room, which is manned 24 hours a day, to alert the centre personnel if the temperatures rise above the design level. Alarms have also been provided for use by any staff inadvertently lock- ed in any cold rooms, though all the doors are designed for opening from inside or outside.
To economise on plant room space and capital cost, a multi-pressure sys- tem has been used. The cold rooms at 11°C (50°F) and 4°C (39.2°F) are served by one compressor and the cold room at -22°C (-6.6°F) by another compressor.
All wiring for lighting, power soc- kets and electric supply to air-condi- tioning equipment serving the cold rooms and the pouring rooms is wired from an independent distribution board which, under normal operating conditions, gets its supply from the mains. When mains supply fails, a standby mains failure generating set of 12 KVa 3 phase type, with automatic
mains failure control, will start up and take over the load in approximately seven seconds. On mains supply re- turning, the plant will automatically transfer the load, shut down and reset itself in readiness for the next failure.
Contractors
The main contractor was Tan Kok Hua Construction. Subcontractors and suppliers included:
Dumbwaiter
gineers.
-
Air-conditioning
(M) Ltd.
Plumbing struction Ltd.
-
The China En-
Guthrie Waugh
Song Pang Seng Con-
Boiler Song Pang Seng Construc- tion Ltd.
Gases - Malayan Oxygen Ltd. Electrical wiring - Sing Kong Elec- trical Co.
Standby generator G.E.C. (M)
Co. Ltd.
-
-
Ironmongery William Jacks & Co. (M) Ltd. and Delta Enterprise
Sanitary fittings - William Jacks & Co. (M) Ltd. and James Warren & Co. Ltd.
Floor finishes - Federal Floor Tile Products.
Conveyor belt
Co. Ltd.
Ltd.
Sterilizers
Edgar Malaysia
Swedish Trading Co.
Light fittings - Electronic Supplies (M) Co. Ltd., Scott & English (SEA) Co., Ltd., Sing Kong Electrical Co., Star Art Co. Ltd., G.E.C. (M) Co. Ltd., Lai Electrical Co. and Unilite Indus- tries Co. Ltd.
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