4. CONTROLS
4.1
I
NTEGRATED
C
ONTROL
All units are equipped with an integrated control, located in front of the electrical compartment. Use the push
button (
1
) to control the unit. The LED (
2
) will then show on which mode the unit is in.
VD019
3
1
2
Refer to table below to see how to operate the unit using its integrated control.
P
RESS ON PUSH BUTTON
LED C
OLOR
R
ESULTS
O
NCE
A
MBER
U
NIT IS ON
L
OW
S
PEED
T
WICE
G
REEN
U
NIT IS ON
H
IGH
S
PEED
T
HREE
T
IMES
N
O
L
IGHT
U
NIT IS
OFF
If a problem occurs during the unit operation, its integrated control LED (
2
) will blink. The color of the blinking light depends on the type
of error detected. Refer to
Section 9 Troubleshooting on last page for further details.
4.1.1 B
OOT SEQUENCE
The unit boot 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 30-second booting sequence before starting to operate. During the booting sequence, the
integrated control LED will light GREEN (unit set in normal defrost) or AMBER (unit set in extended defrost) for 5 seconds, and then
will shut off for 2 seconds. After that, the LED will light RED for the rest of the booting sequence. During this RED light phase, the unit
is checking and resetting the motorized damper position. Once the motorized damper position completely set, the RED light turns off
and the booting sequence is done.
NOTE: No command will be taken until the unit is fully booted.
4.1.2 S
ETTING
E
XTENDED
D
EFROST
The unit is factory set to normal defrost. In cold region (outside temperature -27 °C [-17 °F] and lower), it may be necessary to setup
extended defrost. During the first 5 seconds of booting sequence, while the integrated control LED is GREEN, press on push button
until the LED turns AMBER (about 3 seconds).
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