CHILLED BEAMS AND FAN COILS f rom the cooling coil and valve
assembly. To reduce the possibility of harbouring legionella bacteria or other bacterial or fungal contamination trays s hould be designed to prevent ‘pooling’ of water such as by grading the tray in two d imensions to the drain connection outside the a ir steam.
Condensate drains can connect to either a gravity drainage system or to a condensate pump to lift the condensate to a suitable drain p oint or system. Most condensate pumps h ave a set of integral volt free fail-safe alarm contacts to allow users to be alerted and prevent flooding in the event of pump failure, if used correctly.
n eed to inhibit the unit should the humidity in the space be too high.
A comprehensive range of optional inlet and discharge acoustic attenuators are available for applications where exceptional low noise levels are required but thermal duty remains h igh, such as prestigious or special application rooms, high reverberation time spaces and spaces with no ceiling.
Condensate trays are provided for the collection of condensate and disposal of water Maintenance and access
Possibly a point that we are all aware of but still worth remembering is that all fan c oil units need occasional maintenance and inspection.
Therefore, consideration should be given to leaving good access to units installed in ceiling or a void with sufficient space to change air filters and allow periodical cleaning of fans and condensate trays.
Types and styles
Fan coil units are available in a variety of configurations to suit specific on-site requirements. For example, the Dunham-Bush Concierge cassette unit is designed to meet the demands of hotel bedrooms and apartments by affording ready access for maintenance, maximising the room availability. Concierge units are in stalled t hrough the ceiling and are equipped with hinged access to all the major components of the unit for simple maintenance with minimum disruption to the operation of the building. While the Concierge is a self-contained unit, including a discharge sound attenuator, pressure independent control valves (PICV), electric heating, condensate pump, can be specified.
Horizontal and vertical chassis units with waterside controls are favoured for offices and institutional buildings where a flexible, efficient and controllable solution is required. Slim-line models are available for situations where ceiling void depths are restricted. Where surface mounting is called for, cased vertical h orizontal ceiling low-level and high-level wall units provide the designer with a range of siting options. All Dunham-Bush cased units are available in BS or RAL colour finishes to blend aesthetically with the design led surroundin gs.
RS-53 (R470A) LY
THE ONLYTHE ONL NON-FLAMMABLE DROP-IN REPLACEMENT FOR R410A ON THE MARKET
* R410A split air-coA split air-conditioning unit converted to RS-53 & operating satisfactorily without any problems
split air-condition
* Low direct GWP (less than half) Drop-in replacement for R410A in A in existing equipment
* Non-flammable & low toxicity * Similar energy efficiency to R410A
* Close match for R410A in cooling capacity * Similar discharge pressure & temperature to R410A* Contact us here:
Tel: +44 (0)161 926 9876 Email:
rs@refsols.com Web:
www.refsols.com
RS-51 (R470B) NEW L
NEW LOW GWP DROP-IN REPLACEMENT FOR R404A & R507
DROP-IN REPLACEMENT FOR
GWP more than 80% below R404A R448A & R449A
R404A Similar performance to R404A
Lowest GWP replacement for R404a & R507 on the market
Non-flammable & low toxicity A & ca half
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