Technical data
Table Of Contents
- User Instructions for the Micromat boiler
 - Product Description
 - Technical Data
 - Delivery Consignment / Unpacking the boiler
 - Boiler location
 - Installation Clearances
 - Wall Mounting
 - Gas Connection
 - Gas Conversion
 - System Flow & Return connections
 - Condensate Connection
 - Flue / Combustion Air connection
 - Flue Systems
 - Calculating Flue Resistance
 - Ventilation requirements single appliances
 - Hydraulic System Design
 - System type 1
 - System type 2
 - System type 3
 - System type 4
 - System type 5
 - System type 6
 - System type 7
 - System type 8
 - Water Treatment
 - Soldering Flux
 - Electrical Connection
 - System Type 1
 - System Type 2
 - System Type 3
 - System Type 4
 - System Type 5
 - System Type 6
 - System Type 7
 - System Type 8
 - Commissioning The Micromat EC
 - Installation Codes
 - First Firing
 - Pop Up Menu
 - Setting DHW Temperature
 - Servicing
 - Screen Display Diagnosis of Faults
 

Energy Technology
Ltd.
9
energy saving
In addition to the extremely efficient burner and heat exchanger system employed in the MICROMAT EC each
appliance includes a modulating speed boiler primary pump.
This feature allows the boiler to self-maintain a 20°C ∆t across the heat exchanger, optimising the heat
exchanger efficiency and reducing also the electrical consumption of the pump motors. The result is a
seasonal increase in boiler efficiency of a further 7-10% and a reduction in pump electricity consumption of
up to 70%.
natural gas or LPG
Appliances can be supplied for use with natural gas (G20) or LPG (G31).
comprehensive microprocessor control
The boiler control panel includes a user friendly microprocessor control centre which manages the entire function of
the appliance and encompasses: -
1. Management of the essential safety functions of burner ignition and flame monitoring.
2. Water high temperature and flue gas high temperature safety cut out.
3. Modulation of the boiler output and pump speeds in conjunction with operating temperature control.
4. LCD display screen with two lines of text to continuously display operational or fault status.
5. In built weather compensator to provide direct-on boiler VT flow temperature (if required).
6. Remote stored hot water temperature control.
7. In built 2 stage boiler frost protection program.
8. In built pump exercising program to avoid standstill seizure.
9. Cold start boost facility.
10. PC compatibility with data logging which allows communication with the boiler via a lap-top computer to
review / modify operational parameters and access operational history as an aid to fault finding and
preventative maintenance.
11. Range rate adjustment which allows the power to be set to accurately match the maximum needs of
the system, with the facility to set a different firing rate for heating. Output to hot water self adjusts to
the heat transfer capability of the calorifier.
12. Facility to connect optional matched control components which allow the boiler to control a heating circuit
pump, HWS primary pump or diverter valve and an underfloor circuit mixing valve and pump, plus the
ability for the boiler to be controlled by a remote multi function modulating room unit. Multiple boilers may
be connected to a modulating Kaskade manager which further enhances the operating efficiency of a
larger load modular boiler system.
room sealed option
If required, the boiler may be installed to be completely room sealed, taking combustion air directly from outside the
building, using a 125/70 concentric air duct/flue system. Inherent safety is afforded by the negative pressure within
the boiler casing, which in the event of incorrect sealing results in safe inward air leakage only.
extended flue lengths
The excess fan pressure from the combustion system is 100 Pa, which allows the appliance to be exhausted using
small diameter PPS plastic flue components, over long distances, allowing for complete flexibility in boiler siting.
designed for ease of maintenance
Although compact, the MICROMAT EC  does not compromise serviceability. The appliance has been engineered to
be easy to maintain with even the most major of service operations being able to be completed easily and quickly
with the minimum of tools.
guarantee
The heat exchanger carries a five year guarantee against manufacturing or material defect provided that INIBAL
corrosion inhibitor is used in the system and a service contract is in place with an RVR approved service agent.
Please contact the RVR Customer Care Dept. for details.
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