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INTER 2V4SA, rev.02
INTER 2V4SA
Alarm Connection:
There are two types of alarms on the market.
One type activates when current is cut off
at its input; the other type of alarm activates
when current is supplied at its input. For an
alarm of the first type, use the NO terminal as
shown on the wiring diagram. For an alarm of
the second type, use the NC terminal.
All wiring must be done by an autho-
rized electrician and must comply with
applicable codes, laws and regulations.
Make sure power is off before doing any
wiring to avoid electrical shocks and
equipment damage.
4.3. Motor Types
The relationship between the voltage sup-
plied to a motor and its operating speed is
described by a motor ramp. This ramp varies
with the make and capacity of the motor. The
various motors available in the industry have
been divided into ten categories and the con-
troller has been programmed with a different
motor ramp for each of these categories. To
ensure that the controller supplies the cor-
rect voltages, an appropriate ramp must be
selected for stage 1 and stage 2 according
to the type of fan motors used.
I. Selecting a Motor Type for Stage
1 and Stage 2
The installation guide enclosed with your
controller contains a list of all motor types.
• Select the motor type menu of stage 1
or stage 2. The motor type of the selected
stage is displayed, alternating with letters
"
tYPE
".
• Use the adjustment buttons to set the motor
type to the desired value.
4.
Installation
4.1. Mounting Instructions
Open the latch and lift the cover. Remove the
black caps located on each of the four mounting
holes. Mount the enclosure on the wall using
four screws. Be sure the electrical knockouts
are at the bottom of the enclosure in order to
prevent water from entering the controller. Insert
the screws in the mounting holes and tighten.
Fasten the four black caps provided with the
controller onto the four mounting holes. The
enclosure must be mounted in a location that
will allow the cover to be completely opened
right up against the wall.
4.2. Connections
Refer to the wiring diagram enclosed with this
user’s manual to connect the controller. Drill
holes at the bottom of the enclosure to pass
the wires and install watertight connectors to
prevent water from entering in the enclosure.
Do not make any holes at the side and top of
the enclosure.
• Set the voltage switch to the appropriate
voltage.
• If Stage 5 or 6 is used for heating, it may
be necessary to install a transformer in or-
der to supply the appropriate voltage to the
heating unit.
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INTER 2V4SA, rev.02
INTER 2V4SA
12.
Test Mode
A test mode allows you to simulate tempera-
ture changes and verify the performance of
your controller. In test mode, the tempera-
ture probe inputs are turned off, allowing to
change the temperature used by the con-
troller to operate the stages. The controller
operates as before using the new temperature
settings.
Enabling/disabling the test mode:
• Select the
TEST MODE
. The test mode
status is displayed.
• Use the adjustment buttons to select the
desired test mode status (On or Off).
Setting the test mode temperature:
• Once the test mode is enabled, press the
push button. The test mode temperature is
displayed, alternating with the letters
"tst".
The test mode automatically ends after
4 minutes of inactivity.
