STULZ CyberRow DX Series Installation, Operation & Maintenance Manual
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4.6.2.8
Information Menu Group Menu Screens
The following display screens are available in the Information menu loop (Section 4.5.2.8) if two or more units are
wired together as a group. They display key operating parameters for grouped A/C units.
Press ( ) or ( ) Key
Group T/H Sensors
Avg 000.0 °F
000.0 %
Min 000.0 °F
000.0 %
Max 000.0 °F
000.0 %
Min Temp 0
Min Hum 0
Max Temp 0
Max Hum 0
4.6.2.8.3 Lead Controller Group Sensors
This screen appears only in the display of the controller that is designated as
the Lead in a multi-unit work group. The lead controller polls the Temperature
and Humidity sensors from all the A/C units in the work group and displays the
averaged values. It also displays the value of the minimum (lowest) temperature
sensor and the value of the minimum humidity sensor in the A/C group and
conversely, displays the value of the maximum (highest) temperature sensor
and maximum humidity sensor in the A/C group. The fi elds at the bottom are the
addresses of the controllers in the group that have the min. (lowest) and max.
(highest) temperature and humidity sensor readings.
4.6.2.8.1 Group Sensor Values
This displays the current group temperature and humidity control values
transmitted from the Lead controller. The fi eld below displays the selected
control T/H sensor arrangement (lead, avg, min, max, local) depending upon
how the group is set up. See Service>Options screens,
Section 4.6.2.7
.
The last fi eld shows the unit group address assigned to the controller within the
group and the address of the current lead controller.
Net T/H Sensors
00.0°F
00.0%rh
T/H Sensor Value Local
Unit 0 of 0 Lead: 1
Press ( ) or ( ) Key
4.6.2.8.2 Group Alarms
This screen only appears when the controller is wired with additional A/C unit
controllers. It displays bitmask values indicating the alarm conditions that will
initiate a group internal alarm causing the unit to switch over from "Active" to "Unit
Off". See Factory>Group (Group Alarm Set up) in Section 4.6.2.6
.
Group Alarm Setup
1-8:
000
9-16:
000
17-24:
000
25-32:
000
33-40:
000
See manual for details
Group Sensor Status
Unit1 15 Lead Unit 1
Unit1 0 Unit5 0
Unit2 3 Unit6 0
Unit3 0 Unit7 0
Unit4 0 Unit8 0
4.6.2.8.4 Group Sensor Status
This screen appears only in the display of the controller that is designated as the
Lead in a multi-unit work group. It shows what sensors exist on each A/C unit
for the Lead controller to perform the group sensor averaging calculation. The
numbers are the sums of index values assigned to the sensors as shown in the
following key:
1 = Supply Temperature Sensor
2 = Return Humidity Sensor
4 = Remote Supply Temperature Sensor
8 = Remote Supply Humidity Sensor
16 = Static Pressure Sensor
To determine which sensors are enabled and operable for each unit, simply determine which index numbers,
derived from the key above, will produce the number shown in the screen.
In the example shown, the number for the lead unit is 15. This results from adding 1
Supply Temperature
+ 2
Return
Humidity
+ 4
Remote Supply Temperature
+ 8
Remote Supply Humidity
together, confi rming those sensors are operable.
The number shown for unit number 2 is three, the result of adding 1 + 2. This confi rms unit number 2's Supply
Temperature and Return Humidity sensors are detected by the Lead controller. If a one appeared instead for unit
number 2, it would indicate the signal for the Return Humidity sensor is not present. That sensor is either not
enabled or it has failed.
Press ( ) or ( ) Key
Содержание CyberRow DX CRS-042-G
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