return air temperature will be brought on first and the
unit with the highest return temperature will be turned
off first.
To change the staging method type:
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 Sys Config;
press ENTER key.
4. Press UP or DOWN keys to scroll to Zone 1, Zone 2
or Zone 3; press ENTER key.
5. Press UP or DOWN keys to scroll to Staging A2-5
(Zone 1), A3-5 (Zone 2) or A4-5 (Zone 3).
6. Press ENTER key to scroll to the variable labeled
Type (see Figure 21).
7. Press UP or DOWN keys to adjust.
Maximum Number of Units Running
The maximum number of units that will be staged
on can be configured for each zone. The number is
defaulted at the total number of units capable so that
they are fully utilized by default. This is configurable
for economizer, cooling and heating independently.
To adjust the maximum number of units running:
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 Sys Config;
press ENTER key.
4. Press UP or DOWN keys to scroll to Zone 1, Zone 2
or Zone 3; press ENTER key.
5. Press UP or DOWN keys to scroll to Staging A2-6
(Zone 1), Staging A3-6 (Zone 2) or Staging A4-6
(Zone 3).
6. Press ENTER key to scroll to the variable for
Freecooling, Cooling or Heating (see Figure 22).
7. Press UP or DOWN keys to adjust number of units.
FIGURE 21
Adjust Staging Settings
FIGURE 22
Staging Maximum Number of Units Running
Staging Delay
A delay on and off can be set for economizer (FC),
cooling (CL) and heating (HT) independently for each
zone. This will limit how fast the units can be staged
on or off.
To adjust the on and off delay times:
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 Sys Config;
press ENTER key.
4. Press UP or DOWN keys to scroll to Zone 1, Zone 2
or Zone 3; press ENTER key.
5. Press UP or DOWN keys to scroll to Staging A2-5
(Zone 1), Staging A3-5 (Zone 2) or Staging A4-5
(Zone 3).
6. Press ENTER key to scroll to the variable in the
table that intersects FC, CL or HT and Delay On or
Delay Off (see Figure 21).
7. Press UP or DOWN keys to adjust.
Rotation
The units in each zone can be rotated based on
a configurable number of days (1-7). The time is
defaulted to 7 days. In addition to time based, a
manual rotation can be triggered for troubleshooting.
To change the rotation variables:
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 Sys Config;
press ENTER key.
4. Press UP or DOWN keys to scroll to Zone 1, Zone 2
or Zone 3; press ENTER key.
5. Press UP or DOWN keys to scroll to Rotation A2-7
(Zone 1), Rotation A3-7 (Zone 2) or Rotation A4-7
(Zone 3).
Manual 2100-669F
Page 22 of 37
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