FIGURE 2.3
Adjusting Units Running When Generator is Active
To change which units run when the generator run
input is active:
1. Press MENU key to go to the Main Menu screen.
2. Use UP or DOWN keys and ENTER key to enter
USER password 2000.
3. Press UP or DOWN keys to scroll to
Adv System
Config
; press ENTER key.
4. Press UP or DOWN keys to scroll to
Unit Inhibit
(B3)
.
5. Press ENTER key to scroll to
Unit 1
(see Figure
2.3).
6. Press UP or DOWN key to change
Enabled on Gen
to
Disabled on Gen
.
7. Press ENTER key to save the value and move
cursor to
Unit 2
.
8. Press UP or DOWN keys and ENTER key to change
units to
Disabled on Gen
as needed.
The system will also disable economizer operation
of all wall units when the generator is running. This
setting can be changed per wall unit by the end user
to allow the economizer to operate if the exhaust of the
generator is far enough away from the wall unit’s fresh
air intake.
To change which units can use the economizer when
the generator run input is active:
1. Press MENU key to go to the Main Menu screen.
2. Use UP or DOWN keys and ENTER key to enter
USER password 2000.
3. Press UP or DOWN keys to scroll to
Adv System
Config
; press ENTER key.
4. Press UP or DOWN keys to scroll to
Econ Inhibit
(B2)
.
5. Press ENTER key to scroll to
Unit 1
(see Figure
2.4).
6. Press UP or DOWN key to change
Enabled on Gen
to
Disabled on Gen
.
FIGURE 2.4
Adjusting Economizers Running
When Generator is Active
7. Press ENTER key to save the value and move
cursor to
Unit 2
.
8. Press UP or DOWN keys and ENTER key to change
units to
Disabled on Gen
as needed.
This alarm will clear and operation will return to normal
when the generator run input no longer indicates the
generator is running.
Utility Power Loss Alarm
The LV will indicate a utility power loss alarm when
the power loss input indicates that utility power to the
shelter is not available. This can be accomplished in
two ways. The first way is with units equipped with the
inverter option; with these units, the wall unit controller
will detect a power loss and communicate the event
to the LV. The LV will then indicate a utility power loss
alarm. The second way is with wall units that do not
have the inverter option installed; with these units,
230v may be run into the LV enclosure and connected
to the power loss relay. When 230v is not present at the
power loss relay, the LV controller will indicate a utility
power loss alarm. When the power loss alarm is no
longer present from either the power loss relay in the LV
or the wall units, the alarm will automatically clear.
To change the power loss inputs:
1. Press MENU key to go to the Main Menu screen.
2. Use UP or DOWN keys and ENTER key to enter
USER password 2000.
3. Press UP or DOWN keys to scroll to
IO Config
;
press ENTER key.
4. Press UP or DOWN keys to scroll to
Digital In
Config (C1)
.
5. Press ENTER key to scroll to the variable in the
table that intersects
UtlPwr
and
Dir
(see Figure
2.2).
6. Press UP or DOWN key to change direction.
7. Press ENTER key to save the value and move
cursor to variable in the table that intersects
UtlPwr
and
En
.
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