Lifebreath 2500EFD - Manual (Page 7)

7
Operation Instructions
The LIFEBREATH 2500 series HRV is designed
tobe operated continuously or intermittently to meet
the requirements of the application.
Continuous Operation
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).
Internittent Operation
Due to variance in the times in which buildings are
occupied and equipment or machinery operated,
inter mittent 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).
Optional Remote Controls
Basic controls such as dehumidistats, mechanical
crank timers, 24-hour timers or toggle switches can
be used to control the unit (see pg. 9).
Installation Tips
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.
EXAMPLE: 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 con-
taminant 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
Low Voltage-24VAC
HIGH/LOW
T3 - On/Off
T2 - High/Low
T1 - Common