Lifebreath 200ERVD - Manual (Page 12)

12
Operating the ControlAir 15
Plugging in the ERV energizes the unit. A self test function
will be performed every time the ERV is energized (refer to
“Self Test” for more details). After the self test has complet-
ed successfully the ERV will default to Speed 1. This is the
factory default setting. Follow the instructions found on the
ERV door to select desired mode and speed, or refer to the
instructions found on the following page.
R e m ov i n g a n d r e l o c a t i n g t h e
Control Pad
The Control Pad can be removed and installed in a remote location (100’
wire length max). The Control Pad can be installed in a 2x4 box with a
“Decora” type cover plate or can be installed in the optional “Ventilation
Dehumidistat” When the Control Pad is installed in a remote location all
optional controls will still be wired to the Control Module on the ERV.
When remotely mounted on its own, the Control Pad is wired to the
Control Module by 3 wire (min. 20 gauge). When remotely mounted in the
Ventilation Dehumidistat, 4 wires are required (min. 20 gauge). Connect
the colour coded terminals from the Control Pad/Ventilation Dehumidistat
to the corresponding terminals on the Control Module.
Self Test
Each time the ERV is powered/energized the self test function
will automatically initiate. During the self test the ERV will
cycle through all the speeds available (1-5), test the damper
motor operation and will default back to the previous
mode/speed selection, (factory default is Speed 1). Total self
test duration is approximately 1min 30 sec.
Automatic Defrost Operation
*Not on all Erv’s
The advanced technology of the digital microprocessor
automatically activates the defrost system only as it is
needed. To be an efficient heat recovery device, the ERV
must effectively provide for core defrost as well as providing
efficient heat exchange. As outdoor conditions cool, the
temperature sensor (thermistor) tracks the supply air tem-
perature. The thermistor then sends its signal to the micro-
processor (circuit board) which initiates only the defrost
cycle time required to clear the core. On recirculating
defrost models, the core is defrosted when the supply air
port is automatically blocked off and exhaust air is redirect-
ed back through the ERV. On damper defrost models, the
core is defrosted when the supply air port is automatically
blocked off and the warm air surrounding the ERV is drawn
in through the defrost port. The mode indicator will flash
RED during the defrost cycle. This dramatic advance makes
more energy available for recovery as the unit spends less
time in defrost mode. By optimizing the defrost cycle, the
ERV combines money saving performance with a well
designed and reliable control system.
PART 1 FUNCTION & CONTROL
Models 200 & 500 Only
Glossary
DEFROST MODE ( *Not on all Erv’s) -to ensure reliable operation
during cold weather, the ERV will automatically cycle through its
defrost mode as needed.
ENERGY RECOVERY VENTILATOR (ERV) - a ventilation system
that recovers energy from exhaust air, also known as an air-to-air
exchanger.
RESET - whenever resetting of the ERV is required, simply discon-
nect the power for 30 seconds.
STANDBY MODE - the ERV is energized and waiting for fan opera-
tion to be initiated by a remote device or manual override.
THERMISTOR - the ERV's temperature sensor which measures
electrical resistance in a known manner, as outdoor temperatures
fluctuate.
ControlAir 15
Exploded view
Control Module
Control Pad