13
3. CONTROLS
The ERV100SP unit is equipped with an integrated defrost control while the ERV100S unit has
an integrated control. In both cases, those electronic devices are located under the unit, in front
of the electrical compartment. Refer to the figure at right for steps 3.1 up to 3.4.
Plug the unit.
The unit booting sequence is similar to a personnal computer boot sequence. Each time the unit is plugged after being unplugged,
or after a power failure, the unit will perform a booting sequence before starting to operate.
If a problem occurs during the unit operation, or if the unit turns in Protection Mode, its LED (
1
) will blink. The color and the blinking
pattern depend on the type of error detected, or if the unit is in Protection Mode.
Refer to the sticker on the unit and Section 9 Troubleshooting on page 22 for further details.
3.1
B
OOTING
S
EQUENCE
During the booting sequence, the integrated defrost control LED
(
1
in above illustration) will be OFF for 3 seconds, and then will
turn RED for the rest of the booting sequence (approximately
15 seconds). During this RED light phase, the unit is checking and
resetting the motorized damper position. Once the motorized
damper position completely set, the booting sequence is done;
the color of the LED will show on which defrost cycle the unit
is set.
NOTE: No command will be taken until the unit is fully booted.
3.1.1 ERV100SP U
NIT
B
OOTING
S
EQUENCE
VC0152
1
2
During the booting sequence, the integrated control LED (
1
in
above illustration) will light up and remain GREEN or AMBER
for 3 seconds, and will then shut off*; the booting sequence is
done.
* or will light up in the color of the previous mode to show the unit
resumed to it, if the unit is controlled by its integrated control.
NOTE: No command will be taken until the unit is fully booted.
3.1.2 ERV100S U
NIT
B
OOTING
S
EQUENCE
