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EXPERT 64EU rev.03
EXPERT 64EU
TEMPERATURE ALARMS:
The following diagram explains how temperature alarms are detected:
When the average room tempera-
ture exceeds the high tempera-
ture alarm setting, a high tempera-
ture alarm is set off. When the
average room temperature de-
creases below the low tempera-
ture alarm setting, a low tempera-
ture alarm is set off. Although
these settings are entered by the
user as absolute values, they are
defined based on the room set
point. They are thus automatically
adjusted if the set point changes.
The situation is slightly different
when the outside temperature is greater than the room set point. In this case, the
outside temperature becomes the reference point (instead of using the set point as a
the reference). This means an alarm is set off when the room temperature reaches
Outside Tempe High Alarm Offset (the offset being the difference between
the high alarm temperature setting and the set point). A third parameter, called the
critical temperature, is defined to continue monitoring the indoor temperature for
high temperatures. When the indoor temperature reaches the critical high tempera-
ture (defined as an absolute value), an alarm is set off.
EMPTY ZONE TEMPERATURE ALARMS
A low temperature alarm limit must be set for the clean mode. Whenever the controller
operates in clean mode, an alarm is set off if the room temperature decreases below this
limit. Refer to section 4.9 for further information on the clean mode. Although these
settings are entered by the user as absolute values, they are defined relative to the
empty zone set point and are automatically adjusted by the controller if the empty zone
set point changes.
WATER SPILL ALARM
A water spill alarm is set off when the water consumption exceeds a certain limit.
This limit can be adjusted from 0 to 10,000 gallons or liters per 15 minutes. The alarm
is activated if a greater quantity of water is detected within the 15 minute delay.
STATIC PRESSURE (SP) ALARM
The controller can generate an alarm when the static pressure level exceeds the hi/lo
pressure limits for a certain period of time. This alarm is set off if the alarm condition is
maintained that delay. In addition, a relay can be activated when a low static pressure
alarm occurs. This can be used to activate additional fans to reestablish the pressure
level for instance (s. 4.6).
In the case of a high SP alarm, the tunnel curtain remains
opened until the static pressure level goes back into the normal pressure range.
GRAPHIC:
Temperature Alarms
SET POINT
ROOM TEMPERATURE
ALARM
LIMITS
HI T° ALARM
HI T° ALARM
Summary of Contents for Integra EXPERT 64EU
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