Heat Recovery General Description - Lennox BAC 030 SNM 3M Installation, Operating And Maintenance Manual

HEAT RECOVERY - GENERAL DESCRIPTION
Heat recovery modules have following interests:
• in winter season and heating mode, the heat in the extract air is exchanged with the fresh air ;
• conversely, in summer season and cooling mode, the heat of the fresh air is transferred to the extract air.
HRMV and HRMH are two plates heat exchanger modules, that differ from each other by their horizontal or vertical confi guration.
TRMO is a thermodynamic heat recovery module, included in the machine. Its main interests are:
• a variable fresh air rate from 25 to 100%,
• a high COP in winter when pre-heating the fresh air due to a favorable evaporating temperature, especially with high air fl ow rate ;
• a high EER in summer when pre-cooling the fresh air due to a favorable condensing temperature, especially with high air fl ow rate.
For those reasons, TRMO will be more suitable than HRMV/HRMH in areas where the difference between indoor temperature and
outdoor temperature is low. For example, in Mediterranean areas, where winter temperatures are not very cold or summer temperatures
are not very high.
BALTIC-IOM-0412-E / Installation manual
• 19 •