Heating and Domestic Hot Water

Mikrofill 3 PRO

The Mikrofill 3 PRO is a WRAS-approved, fully automatic, sealed-system filling device suitable for water management in domestic and commercial heating and cooling systems. The unit is compact, efficient, and is designed for easy installation and requires minimal maintenance.

Key features:

WRAS-approved product – Fluid Risk Category 4 backflow prevention – WRAS approval number: 2307805
8.7 bar max cold fill pressure
Compact, wall-mountable design
Full colour display with 3.95” LCD screen
Comprehensive electronic pressure management

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Key features:

WRAS-approved product – Fluid Risk Category 4 backflow prevention – WRAS approval number: 2307805
8.7 bar max cold fill pressure
Compact, wall-mountable design
Full colour display with 3.95” LCD screen
Comprehensive electronic pressure management

Specification

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Mikrofill 3 PRO Specification

More Features

Accurate flow rate monitoring and volume logging
Embodied carbon calculated in accordance with CIBSE TM65:2021
Leak detection
Smart fault logic
MODBUS RTU
4x customisable BMS outputs
Large memory capacity to record up to 100 parameter changes and fault conditions combined (all entries are time and date stamped)
Easy to install and set up
Standard 2-year warranty
*Extended 4-year warranty when purchased with a vessel package

Accessories

2x braided hoses with integrated isolation valve

Applications

Maintaining system pressure in large domestic and commercial sealed heating systems
Maintaining system pressure in chilled water systems, refrigeration units and industrial cooling systems

Product code	72846
General
Standard warranty	2 years
*Vessel package warranty	4 years
WRAS	2307805
Conformity certification	UKCA, CE
Performance
Max inlet pressure	9 bar
Max cold fill pressure	8.7 bar
Max operating pressure	9 bar
Max flow rate	12 l/min
Operating (environmental) conditions
Ambient temperature range	5 – 45°C
Inlet water temperature range	5 – 23°C
System water temperature range	5 – 85°C
Maximum relative humidity	70% (non-condensing)
IP rating	55
Electrical
Supply voltage	230 V/1 ph/50 Hz
Fuse rating	3 A
BMS relays (max load)	5 A
Dimensions
Height (to the bottom of connections without hoses)	290 mm
Height (to the bottom of tundish)	386 mm
Width	250 mm
Depth	155 mm
Weight (without hoses)	5.3 kg
Installation and connections
Inlet	15 mm compression
System	15 mm compression
Drain	22 mm compression
Wall attachment	Backplate supplied, fixings not included
Clearance (left)	100 mm
Clearance (right)	170 mm
Clearance (top)	100 mm
Clearance (from front face with door closed)	750 mm