88
(Factory configuration) — This subfunction allows for
factory configuration of the unit size, type, and options. Under
this subfunction, there are a minimum of 7 configuration fields
that are configured at the factory.
NOTE: If a processor is replaced in the field, these configura-
tion fields must be configured using the keypad at this
subfunction.
To change a configuration:
1. Display present configuration field.
2. Enter the new configuration data.
3. Press
(see Table 69 for more details).
4. Enable the Data Reset function.
(Element bus address) — The element bus address
subfunction is used to identify the unit address assignment
when the unit is used on a CCN network. The unit address con-
sists of two parts — a bus address and an element address.
When more than one unit is connected to the CCN, the element
addresses must be changed (no two element addresses on the
same bus may be the same). Bus and element addresses must
be changed at the HSIO. Range for bus address to 0 to 239;
range for element address is 1 to 239.
(Units of measure) — Measurements can be dis-
played in either English or SI Metric units. The default is
English. To change units, press
. The display will be
UNIT 0 (English units). Press
and the display
will change to UNIT 1 (SI Metric units).
(User configuration) — After logging on, this sub-
function allows the user to read or change the factory
configuration of user options. Table 69 shows the particular
factory and user configurations that are factory set.
The majority of user configuration items are self-explanato-
ry. However, the ventilation control requires the following
information:
0 = economizer minimum position is controlled by minimum
position entered.
1 = economizer minimum position is controlled by IAQ set
point.
2 = economizer minimum position is controlled to maintain a
constant outdoor-air cfm set point.
3 = economizer will use the largest of the minimum set points
as stated in 0, 1, and 2 settings above.
(Heating coil) — This subfunction allows the user to
view and modify the factory configuration of the heating coil.
The fan off value is the supply-air temperature that the hy-
dronic heating coil valve will modulate open or closed to main-
tain during periods when the evaporator fan is off. This is de-
signed to prevent coil freeze-up during off periods.
(Cooling coil) — This subfunction is used to read or
change the configuration of the cooling coil parameters. The
high humidity limit is the set point used when the cooling con-
trol will be overridden by the humidity control.
(Duct pressure) — This subfunction is used to read or
change the configuration of duct pressure control.
(Economizer) — The economizer subfunction is
used to read or change the configuration of the economizer.
NOTE: The economizer dampers modulate to maintain a
supply-air temperature equal to the damper set point (VAV
only).
Table 67 — History Directory
ENTER
ENTER
HISTORY
Subfunction
Keypad Entry
Display
Comment
1
ALARM
HISTORY
ALRMHIST
Alarm history
ALARM X
Latest alarm expansion
ALARM X
Previous alarm expansion
ALARM X
Previous alarm expansion
ALARM X
Previous alarm expansion
ALARM X
Previous alarm expansion
ALARM X
Previous alarm expansion
ALARM X
Previous alarm expansion
ALARM X
Previous alarm expansion
ALARM X
Previous alarm expansion
2
MAINTENANCE
HISTORY
MTN/HIS
Maintenance history
mm.dd.yy
Latest service date