Quartz Active Chilled Beam Cassette, Cassette Fan Coil Units, Wall Mounted Fan Coil Units, Floor/Ceiling Mounted Fan Coil Units(FCUs)-Chassis and Cased
Existing Active Chilled Beam Systems  Warm room air rising through a ceiling grille by natural convection and then through a chilled beam coil where it is cooled and induced back into the room by the negative pressure caused by the velocity of the air being introduced into the room via the fresh air duct nozzles. One of the problems with this system is, that as the room temperature and humidity increases, condensation can form on the coil and then drip from the coil through the grille and into the room below. The only way to avoid this is to increase the temperature of the water passing through the coil, which in turn reduces the cooling capacity of the chilled beam. (Just when the customer needs it most!) Another disadvantage is to get adequate cooling the coil has to be 2 to 3m long which is sometimes difficult for an Architect to fit with his ceiling layout. Quartz have, by turning the coil through 90°, (i.e. turning it on its side) and then bending it into a square shape greatly reduced the space needed in the ceiling grid for the same cooling output. Also, by turning the coil on its side, a drip tray channel facilitates the collection and removal of any condensate produced by the coil sweating, thus removing the necessity of reducing the cooling capacity of the cooling coil as temperature and humidity increase. It is this condensate removal that we feel may be possible to patent.
Quartz CWC/ H 600 - Chilled Water Cassette (FCUs) 1 to 4kW Ideal for smaller shops and offices, these cassettes are specifically designed to allow installation into a standard suspended ceiling grid. Standard Features Lightweight removable chassis 0 3 or 4 way discharge capability Pipe connection for gravity condensate drain (optional pumps) LPHW heating circuit (CWCH) Low sound levels Long life washable filters Suitable for branch duct applications o Fan finger guard Fresh air inlet Quartz CWC/ H 875 - Chilled Water Cassette (FCUs) 3.8 to 8kW Shopping centres and open plan offices are prime locations for these cassettes, which are designed to facilitate rapid installation. SINGLE LARGE DIAMETER FAN Standard Features Lightweight removable chassis 3 or 4 way discharge capability Pipe connection for gravity condensate drain (optional pumps) LPHW heating circuit (CWCH) Long air throws Low sound levels Long life washable filters Suitable for branch duct applications Fan finger guard Fresh air inlet Quartz CWM - Chilled Water Wall Mounted Fan Coil Units1.5 to 4.8kW Hi-level front airflow, to minimise draughts, and fresh styling distinguish these units, which are ideal for larger commercial and retail applications. Standard Features High wall mounted hi-level front airflow Low sound levels Adjustable air deflectors Long life, flexible, washable filters Quartz CBC - Active Chilled Beam Cassette (Metallic Fascia illustrated with a luminaire) The Quartz Chilled Beam Cassette (Patent Pending) combines all the proven features of our range of Chilled Water Cassette fan coils, and the benefits of Active Chilled Beams. ACTIVE CHILLED BEAM CASSETTE Standard Features Pipe connection for gravity condensate drain (optional pump) Low temperature water can be used Low installation cost Ultra quiet operation High system COP Easy filter access 4 way discharge Integral, easy to clean drain tray Ideal for use with 'free cooling' chillers The full technical details of all the fancoil units can be found in our catalogue entry in kellysearch.www.kellysearch.com Quartz Sapphire - Waterside Control Fan Coil Units (FCUs) A versatile, high power fan coil unit that meets demanding heating and cooling requirements, providing discreet, effective and reliable climate control. 270MM DEEP DUCTED FAN COILS Standard Features Filters Class '0' fire-rated insulation Flush panelled, extra rigid casing Easy access protected control enclosure High performance fans Quartz Amber - Horizontal Waterside Control Fancoil Units (FCUs) A very compact, high power fan coil unit that meets exacting' heating, cooling and noise requirements. Units incorporate the patented `free flow' condensate tray. 235MM DEEP DUCTED FAN COILS Standard Features Low maintenance filter Class '0' fire-rated insulation High output 'optimised' components Flush panelled, extra rigid casing Mitred space saving plenum 27 speed auto transformer speed control Easy access protected control enclosure High performance fans Stainless steel removable drain pan Quartz Amethyst Waterside Control Fan Coil Units (FCUs) A 175mm deep slim-line version of the very successful Amber range of ceiling mounted horizontal fan coil units. 175MM DEEP SLIM- LINE DUCTED FAN COILS Standard Features Low maintenance filter Class '0' fire-rated insulation High output 'optimised' components Flush panelled, extra rigid casing Mitred space saving plenum 27 speed auto transformer speed control Easy access protected control enclosure High performance fans Stainless steel removable drain pan Quartz Diamond - Airside Control Fan Coil Units (FCUs) An ultra compact, high power fan coil that meets some very exacting heating and cooling requirements, providing discreet, effective climate control. 235MM DEEP AIRSIDE CONTROL FAN COILS Standard Features Low maintenance filter Stainless steel removable drain pan High efficiency airside control (air path diverter) Flush panelled, extra rigid casing 27 speed auto transformer speed control Class `0' fire-rated insulation Easy access protected control enclosure Mitred space saving plenum High performance fans Quartz CWF - Chilled Water Fan Coil Unit 0.5 to 9.8kW (Horizontal and Vertical, Chassis or Cased with a Polyester powder coating) Fan Coil Casings Ideal for hotels, larger offices, retail sales areas and major refurbishment projects. These units can be floor, wall or ceiling void mounted, or ceiling suspended. HORIZONTAL AND VERTICAL Standard Features Low sound levels Vertical and horizontal models Chassis and cased (painted sheet steel) versions Easily removable/washable filters Multi-speed motor Easy installation and maintenance Quartz Chillers - Air Cooled Chillers and Heat Pumps 5 to 800kW AIR COOLED PACKAGED Range Features Units are fitted with scroll or screw compressors Polyester powder coated finish Mains isolator Condenser coil with copper tubes and corrugated aluminium fins with metal protection guard Direct drive axial fans (IP54) with overload protection Stainless steel plate heat exchanger (AISI316) or shell in tube exchanger Microprocessor control Flow switch Heat pump version (H) supplied with 4 way reversing valve, liquid receiver second thermostatic expansion valve, automatic defrosting system Integrated hydraulic kit version (K) supplied with buffer tank, water pumps) Low noise version Free cooling version
 *The larger section of the indoor coil is connected to the chilled water and the smaller to the LPHW. Simultaneous Heat and Cool A cooling requirement exists in Zone 2. The boiler is providing hot water and the chiller is supplying cold water. The respective coil sections are activated to cool Zone 1 and to heat Zone 2. Determination of Zone requirement, valve actuation and fan speed are all monitored and controlled automatically by the integral control system.  Two Pipe Fan Coil Systems Innovative 2-pipe system with FCU's served by air to water reverse cycle heat pumps suitable for large zone with no heating / cooling conflict.
 Zone control - Heating Mode (All outdoor units on heating) Stage 1 Zone temperature is >0.2°C below set point. Valve 1 would be open, utilising the 30% coil segment Stage 2 Zone temperature is >0.6°C below set point. Valve 1 would be closed and Valve 2 open, utilising the 70% coil segment Stage 3 Zone temperature is >1.0°C below set point. Both Valves 1 and 2 would be open, utilising the full coil segment Stage 4 Zone temperature is >1.4°C below set point. Valve 1 would be open and fan speed would be switched to high. Zone control - Cooling Mode (All outdoor units cooling) In cooling mode, the system operation is identical to that for heating but activated for zone temperatures above set point. All outdoor units will be operating on coolings.  Two Pipe Fan Coil System 2-pipe system with FCU for cooling only.
 Zone Control - Cooling Only Stage 1 Zone temperature is >0.2°C below set point. Valve 1 would be open, utilising the 30% coil segment Stage 2 Zone temperature is >0.6°C below set point. Valve 1 would be closed and Valve 2 open, utilising the 70% coil segment Stage 3 Zone temperature is >1.0°C below set point. Both Valves 1 and 2 would be open, utilising the full coil segment Boost Cooling Should the zone temperature exceed 1.4°C above the set point, both valves will be open and fan will automatically switch to high speed.
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