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
 

22
15.0 ventilation requirements
single appliances
The room or space in which the Micromat EC boiler is installed is required to be ventilated in accordance with
BS 5440: Part 2:2000.
The following tables must be read to ascertain the amount of ventilation required.
Table 1 Room Intallation - Non Room Sealed Flue.
Natural Ventilation Direct to Outside Air
Boiler Model Ventilation openings Free Area cm
2
High Level Low Level
Micromat EC 16/22 75 ---
Micromat EC 24/28 105 ---
Micromat EC 31/36 145 ---
Micromat EC 38/45 190 ---
Tabel 2 Room Installation - Non Room Sealed Flue.
Natural Ventilation from Adjacent Room
Boiler Model Ventilation openings Free Area
Micromat EC 16/22 75 with adjacent room similarly ventilated to outside air
Micromat EC 24/28 105 with adjacent room similarly ventilated to outside air
Micromat EC 31/36 145 with adjacent room similarly ventilated to outside air
Micromat EC 38/45 190 with adjacent room similarly ventilated to outside air
Table 3 Room Installation - Room Sealed Flue
There are no specific requirements for a room to be ventilated where the appliance
is room sealed. However consideration should be given to providing ventilation for general cooling, (BS 6644
specifies room temperature limits) and the following free ventilation areas are recommended to be installed.
Boiler Model Recommended Natural Ventilation free Area cm
2
Micromat EC 16/22 75 with adjacent room similarly ventilated to outside air
Micromat EC 24/28 105 with adjacent room similarly ventilated to outside air
Micromat EC 31/36 145 with adjacent room similarly ventilated to outside air
Micromat EC 38/45 190 with adjacent room similarly ventilated to outside air
Table 4 Compartment Installation - Non room sealed flue
Natural Ventilation Direct to Outside Air
Boiler Model Ventilation Openings free Area cm
2
High Level Low Level
Micromat EC 16/22 110 220
Micromat EC 24/28 140 280
Micromat EC 31/36 180 360
Micromat EC 38/45 225 450
Table 5 Compartmetn Installation - Non Room Sealed Flue
Natural Ventilation from Adjacent Room
Boiler Model Ventilation Openings free Area cm
2
High Level Low Level
Micromat EC 16/22 220 440
Micromat EC 24/28 280 560
Micromat EC 31/36 360 720
Micromat EC 38/45 450 900










