RVR Energy Technology MICROMAT EC 45, Instruction For Usage, Installation & Commissioning, Page: 20 / 56

20
15.0 ventilation requirements
single appliances
E n e r g y T e c h n o l o g y
Ltd.
The room or space in which the MICROMAT EC boiler is installed may require to be ventilated in accordance with
BS5440: Part 2:1989 or BS 6644: 1991 as appropriate to the boiler input.
The following tables must be read to ascertain the amount of ventilation required.
Table 1 Room 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 45 196 Position Not Dictated
MICROMAT EC 62 278 555
MICROMAT EC 76 319 637
Table 2 Room Installation - Non Room Sealed Flue.
Natural Ventilation From Adjacent Room
Boiler Model Ventilation Openings Free Area cm
2
MICROMAT EC 45 196cm
2
with adjacent room similarly ventilated direct to outside air.
MICROMAT EC 62 & 76 Ventilation from adjacent room not permitted see Table 1 for ventilation
area direct to outside air.
Table 3 Room Installation – Room Sealed Flue
There are not 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, (BS6644 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 45 196 cm
2
(if ventilated from adjacent room, then adjacent room must be equally ventilated
direct to outside air)
MICROMAT EC 62 253 cm
2
Direct to outside air.
MICROMAT EC 76 335 cm
2
Direct 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 45 227 454
MICROMAT EC 62 278 555
MICROMAT EC 76 319 637