Lifebreath 2500IFD Benutzerhandbuch

The LIFEBREATH 2500 series HRV is designed
tobe operated continuously or intermittently to meet
the requirements of the application.

For continuous operation, a simple jumper across
the ON/OFF and COMMON jumper terminals is
needed. HIGH/LOW speed selection requires
another jumper across HIGH/LOW and COMMON;
select as required (see below and wiring diagram).

Due to variance in the times in which buildings are
occupied and equipment or machinery operated,
intermittent ventilation may be the preferred
method.

Dry contacts located inside the electrical panel
enable this unit to turn ON and OFF, and/or jump
between HIGH and LOW speeds when optional low
voltage controls are connected (see above and 
pg. 9).

Basic controls such as dehumidistats, mechanical
crank timers, 24-hour timers or toggle switches can
be used to control the unit (see pg. 9).

1.  Whichever method is chosen to operate the 

2500, keep in mind that Air-to Air exchangers 
in general are not "booster fans" and are 
normally sized to ventilate at a steady rate.

To achieve optimum performance from the 
2500, the desired ventilation rate (speed of 
the system) should be reached before the 
contaminant to be removed has reached 
its maximum.

A bingo hall opening at 7:00PM that is

sized for 5000 cfm should have at least this amount
of air exchange by that time.  If the unit is not
turned on or set to its designated speed until after
the contaminant has reached an uncomfortable
level, then it may result in a number of hours 
passing before the system could catch up.

2. It is highly recommended that back draft

dampers be installed in the supply and 
exhaust duct work to the outside, to prevent 
air from entering in through the HRV when the 
unit is off.  Failure to install back draft 
dampers may result in damage to HVAC 
equipment and/or other building components.

ON/OFF

HIGH/LOW