P R E S S U R I S A T I O N U N I T

MIKROFILL 3 PRESSURISATION UNIT

I N S P I R E D E F F I C I E N C Y

PRESSURISATION UNITmikrofill

I N T R O D U C T I O N

C O N T E N T S

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.

Mikrofill 3 4 - 5

Technical Data/ Dimensions 6 - 7

Expansion Vessels 8 - 9

Schematic 10

4

PRESSURISATION UNITmikrofillThe 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.

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F E AT U R E S

• 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

B E N E F I T S

•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

•No onsite commissioning required

•Clear and concise instruction

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.

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T E C H N I C A L D A T A

MIKROFILL 3 WRAS APPROVAL NO 1806078

DIMENSIONS H X W X D 270 x 250 x 112mm

CONNECTION DETAILS

COLD WATER INLET 15mm Compression

SYSTEM OUTLET 15mm Compression

DRAIN (VIA TUNDISH) ¾” BSP

MAXIMUM INLET PRESSURE 5 Bar

MAXIMUM COLD FILL PRESSURE 4.7 Bar

NOMINAL FLOW RATE AT 2.0 BAR 14 l/min

DRY WEIGHT 5kg

Dimensions (in Millimetres)

Diagram of a Typical Installation

Safety ValveFlow

Pump

Low LossHeader

Wat

erSu

pply

Out

let

Dra

in

Pump

Return

BOILER

SYSTEMEXPANSION

VESSEL

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ELECTRICAL DETAILS

SUPPLY VOLTAGE 230 Volt

FULL LOAD CURRENT 1 Amp

START CURRENT 1 Amp

FUSE RATING 3 Amp

MAXIMUM LOAD BMS RELAYS 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.

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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

EXPANSION VESSELSmikrofill

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E X P A N S I O N V E S S E L M O D E L S 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.

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A schematic drawing of a Mikrofill 3 pressurisation package including Ethos wall mounted condensing boilers and an Extreme domestic hot water loading system.

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.

PRESSURISATION UNITmikrofill

IVIV IV

CondenseWaste

MIKROFILL

ExpansionVessel

LSV DOC

AAV

Heating Circuit

Mains/Boosted Cold Water Supply

DOC

IV

ServiceValve

ETHOS Boiler

ETHOSBoiler

MIK

ROVE

NT

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W A T E R | A P R E C I O U S R E S O U R C E

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.

Mikrofill Systems Ltd.11 Merse Road, North Moons Moat, Redditch, Worcestershire B98 9HL

T +44 (0)3452 60 60 20 F +44 (0)3452 60 60 21 E info@mikrofill.com www.mikrofill.com