IN SPIR E D PRESSURISATION E F F I CI E NCY UNIT MIKR O F IL L 3 P R E SSUR I SAT I O N U NI T
mikrofill PRESSURISATION UNIT
INTRODUCTION Renowned for developing innovative products, Mikrofill has built its success on quality, reliability and outstanding customer service. Our rapidly expanding range of products include commercial condensing boilers, hot water loading systems and pressurisation equipment. The Mikrofill 3 is the most advanced direct type pressurisation unit available, suitable for LPHW/CHW applications of any size. CONTENTS Mikrofill 3 4-5 Technical Data/ Dimensions 6-7 Expansion Vessels 8-9 Schematic 10
mikrofill PRESSURISATION UNIT The WRAS approved Mikrofill 3 pressurisation unit incorporates Fluid Risk Category 4 backflow prevention The ability to fill directly from mains/ boosted water supply any LPHW or CHW system from empty Comprehensive electronic pressure management The Mikrofill 3 contains no pumps or RPZ valves. 4
Unlike pump type pressurisation units the Mikrofill 3 is designed to be connected directly to a buildings incoming mains/boosted water supply and fill a heating or chilled water system without the use of a pump. The Mikrofill 3 is the most energy efficient unit of its kind consuming as little as 10 watts/hr on standby and 30 watts/hr fully operational. FEATURES Integral fluid risk category 4 backflow prevention Fills any LPHW/CHW system from empty Comprehensive electronic pressurisation manager Consumes 10 watts on standby and 30 watts fully operational per hour Wall mounted unit Fill volume indicator Pre- commissioned packages available Large colour screen display BENEFITS No RPZ valve required Connects directly to the mains/boosted water supply 2 methods of flood protection 97% more energy efficient than some pump type units Compact enough to fit in the smallest of plantrooms Aids water treatment calculation Clear and concise instruction No onsite commissioning required 5
TECHNICAL DATA MIKROFILL 3 WRAS APPROVAL NO 1212069 DIMENSIONS H X W X D 270 x 250 x 112mm CONNECTION DETAILS COLD WATER INLET SYSTEM OUTLET DRAIN (VIA TUNDISH) MAXIMUM INLET PRESSURE MAXIMUM COLD FILL PRESSURE NOMINAL FLOW RATE AT 2.0 BAR DRY WEIGHT 15mm Compression 15mm Compression ¾ BSP 5 Bar 4.7 Bar 14 l/min 5kg Dimensions (in Millimetres) 6 BOILER SYSTEM EXPANSION VESSEL
ELECTRICAL DETAILS SUPPLY VOLTAGE FULL LOAD CURRENT START CURRENT FUSE RATING MAXIMUM LOAD BMS RELAYS 230 Volt 1 Amp 1 Amp 3 Amp 5 Amp ELECTRICAL DIAGRAM (WHEN NOT AT FAULT) ELECTRICAL DATA Supply: 230 V 1 ph 3 Amp. Full Load Current: 1 Amp. Start Current: 1 Amp. Fuse Rating: 3 Amp. BMS Relays and Boiler / Chiller Relays: Volt Free Contacts rated at 250 VAC at 5 Amp. All relays are independently fused at 5 Amp. 7
mikrofill EXPANSION VESSELS Mikrofill supply pre commissioned pressurisation packages. Each package includes: Mikrofill 3 unit System relative expansion vessel/s Expansion vessel/s service isolation and drain valve 8
EXPANSION VESSEL MODELS MikroPro range For heating and chilled water applications Max working pressure of 6 bar Max flow temperature of 95 C Max return temperature of 70 C Available in individual sizes from 8 to 900 litres MikroPro XP range For heating, chilled and potable water applications Replaceable Butyl rubber diaphragm Max working pressure of 10 bar Max flow temperature of 95 C Max return temperature of 70 C Available in individual sizes from 8 to 500 litres Please contact our specialist sales team on 03452 606020 or email info@mikrofill.com for package sizing and further information. 9
mikrofill PRESSURISATION UNIT A schematic drawing of a Mikrofill 3 pressurisation package including Ethos wall mounted condensing boilers and an Extreme domestic hot water loading system. Heating Circuit ETHOS Boiler ETHOS Boiler AAV IV IV IV IV MIKROVENT Condense Waste MIKROFILL Expansion Vessel LSV DOC Mains/Boosted Cold Water Supply Service Valve DOC The highlighted items including a pre-commissioning, form a Mikrofill pressurisation package We always recommend the Mikrofill 3 unit is installed into a neutral point on the system as indicated above. 10
WATER A PRECIOUS RESOURCE The water regulations define fluid risk categories by the type of contaminants which are present and specify the appropriate type of prevention device which must be fitted to guard against backflow. Commercial heating and chilled water systems are defined as fluid risk category 4 and as such any device that is permanently connected to the wholesome water supply must provide at minimum, that level of protection. The Mikrofill 3 provides that level of protection. 11
Mikrofill Systems Ltd. 11 Merse Road, North Moons Moat, Redditch, Worcestershire B98 9HL T +44 (0)3452 60 60 20 E info@mikrofill.com F +44 (0)3452 60 60 21 www.mikrofill.com