Precautions; Features - Airstream INTER 2V4SA User Manual

INTER 2V4SA
1.

Precautions

WARNING: Read and save these in-
structions!
Safety may be jeopardized if the equipment is
used in a manner not specified by the manu-
facturer. Carefully read and keep the following
instructions for future reference.
We strongly recommend installing supplemen-
tary natural ventilation as well as a backup
thermostat on at least one cooling stage.
Although fuses at the input and outputs of
the controller protect its circuits in case of
an overload or over-voltage, we recommend
installing an additional protection device on
the controller's supply circuit.
The room temperature where the controller
is located must always remain between 32°F
and 104°F (0°C to 40°C). Indoor use only!
To avoid exposing the controller to harmful
gases or excessive humidity, it is preferable
to install it in a corridor.
If the equipment is used in a manner not
specified by the manufacturer, the protec-
tion provided by the equipment may be
impaired.
Do not spray water on the controller! In
order to clean the control, wipe it with a
damp cloth.
Before servicing or cleaning unit, switch
power off at service panel and lock the
switch disconnecting means to prevent
power from being switched accidentally.
When the service disconnecting means
cannot be locked, securely fasten a
prominent warning device, such as a
tag, to the service panel.
4
INTER 2V4SA, rev.02
2.

Features

The INTER 2V4SA is an electronic device
used for environmental control in livestock
buildings. It allows the user to maintain a
specified target temperature by controlling
the operation of ventilation and heating equip-
ment. The controller can control two stages
of variable speed fans and two stages of
either constant-speed fans or heating units.
In addition, one of the constant-speed fan
stages can be configured as a mist cooling
stage.
Five-digit display:
A five-digit display provides a high level
of accuracy, allowing the user to specify a
temperature to within one tenth of a degree
(in Fahrenheit or Celsius units).
Pilot lights:
Pilot lights indicating the state of outputs
allow the user to monitor the operation
of the system without having to enter the
building.
Minimum ventilation cycles:
When ventilation is not required for cooling,
the first stage fans can be operated either
continuously or intermittently to reduce the
level of humidity and supply oxygen to the
room.
Ramping functions:
Ramping functions provide an automatic
adjustment of the set point and minimum
ventilation fan speed over a given period
of time.
Choice of 10 motor types:
The variation in motor speed resulting from a
change in voltage will depend on the make and
capacity of the motor. In order to achieve a high
degree of compatibility between controller and
motor, the user can choose from among ten
different motor types, thus ensuring that the
correct voltage is supplied.
Zoned or cascading heaters