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micro is corrupted, and/or the crystal clock is not
functioning properly
• FAIL: DEWPT SNS: The ACC does not have a
valid dewpoint sensor reading.
• FAIL: TEMP SNS: The door frame temp sensor is
not functioning properly.
• FAIL: OVER TEMP: The output heater is turned
off because the driver is overheating.
8.5.5. ACC Status Screens
The two ACC Status Screens show the current
readings of all ACC inputs, the Relative Humidity, the
Ambient Temperature, the Dewpoint and the Door
Temperature, and other operating information.
8.5.5.1.
Input Status Screen
DOOR TMP: 12.6
DOOR STPT: 13.0
ROOM DP: 32.0
TMP: 75 RH: 50
DOOR TMP: The current value from the door frame
temperature sensor. The statuses OPEN or SHORT
mean the sensor is not functioning properly.
DOOR STPT: The current value of the door frame
temperature setpoint.
ROOM DP: The current value of the room dewpoint
sensor. NONE means the ACC has not received a
valid dewpoint reading.
TMP: The current value of the ambient temperature.
NONE means the ACC has not received an ambient
temperature reading. The ACC bases control on the
dewpoint sensor so this is not critical.
RH: The relative humidity. NONE means the ACC
has not received a relative humidity reading. The
ACC bases control on the dewpoint sensor so this is
not critical.
8.5.5.2.
Output Status Screen
DUTY CYCLE%: 34
OVR: NO %: 00
OVR SRC: HHT
SAVINGS%: 62
DUTY CYCLE%: The current output condition.
OVR and %: Active heater output override (YES or
NO) and percentage.
24 • Control Link ACC I&O Manual
OVR SRC: Source of the current override (HHT or
REMOTE).
NOTE: The HHT will be able to override an
override that was initiated remotely. The user
will be able to override the heater output to a
fixed percentage. Once the HHT is removed,
the override will end.
SAVINGS%: The percentage of time the heater has
been off. This field may be reset by selecting it and
pressing cancel.
8.5.6. ACC Configuration Screens
All of the configuration of the ACC may be
changed using the HHT. HHT users may change
setpoints and overrides.
8.5.6.1.
HHT Changes When ACC is
Connected to E2
All changes to setpoints made by the HHT are
temporary if the ACC is connected to a parent E2.
Changes made in the HHT do not change the
configuration stored in the E2. When the HHT is
unplugged from the ACC, all changes made by the
HHT are overwritten by the E2, including output
overrides. If you wish to make permanent changes to
the ACC's configuration, you must make them
through the E2 (or through a remote communication
program connected to the E2, such as UltraSite32).
8.5.6.2.
HHT Changes When ACC is
Stand-Alone
If the ACC is operating standalone with no
connection to an E2, the HHT is the only method that
may be used to change configuration. When the HHT
is unplugged from the ACC, all changes to
configuration will be saved. Overrides made with the
HHT, however, will be canceled when the HHT is
unplugged.
026-4704 Rev 6
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