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NOTE: By default, the time schedule periods are programmed for
24 hours of occupied operation.
To create a schedule, perform the following procedure:
1.
Scroll to the Configuration mode and select CCN CONFIG-
URATION (CCN). Scroll down to the Schedule Number
(Configuration
CCN
tection has been enabled, the user will be prompted to enter
the password before any new data is accepted. SCH.N has a
range of 0 to 99. The default value is 1. A value of 0 is always
occupied, and the unit will control to its occupied set points.
A value of 1 means the unit will follow a local schedule, and
a value of 65 to 99 means it will follow a CCN schedule.
Schedules 2-64 are not used, as the control only supports one
internal/local schedule. If one of the 2-64 schedules is config-
ured, then the control will force the number back to 1. Make
sure the value is set to 1 to use a local schedule.
2.
Enter the Time Clock mode. Scroll down to the LOCAL
TIME SCHEDULE (SCH.L) sub-mode, and press
ENTER. Period 1 (PER.1) will be displayed.
3.
Scroll down to the MON point. This point indicates if
schedule 1 applies to Monday. Use the ENTER command
to go into Edit mode, and use the UP or DOWN key to
change the display to YES or NO. Scroll down through the
rest of the days and apply schedule 1 where desired. The
schedule can also be applied to a holiday.
4.
Configure the beginning of the occupied time period for
Period 1 (OCC). Press ENTER to go into Edit mode, and the
first two digits of the 00.00 will start flashing. Use the UP or
DOWN key to display the correct value for hours, in 24-hour
(military) time. Press ENTER and hour value is saved and the
minutes digits will start flashing. Use the same procedure to
display and save the desired minutes value.
5.
Configure the unoccupied time for period 1 (UNC). Press
ENTER to go into Edit mode, and the first two digits of the
00.00 will start flashing. Use the UP or DOWN key to display
the correct value for hours, in 24-hour (military) time. Press
ENTER and hour value is saved and the minutes digits will
start flashing. Use the same procedure to display and save the
desired minutes value.
6.
The first schedule is now complete. If a second schedule is
needed, such as for weekends or holidays, scroll down and
repeat the entire procedure for period 2 (PER.2). If addi-
tional schedules are needed, repeat the process for as many
as are needed. Eight schedules are provided.
SERVICE TEST
General
The units are equipped with a Service Test feature, which is in-
tended to allow a service person to force the unit into different
modes of operation. To use this feature, enter the Service Test cat-
egory on the local display and place the unit into the test mode by
changing Service Test
TEST from OFF to ON. The display will
prompt for the password before allowing any change. The default
password is 1111. Once the unit enters the Service Test mode, the
unit will shut down all current modes.
TEST
The TEST command turns the unit off (hard stop) and allows the
unit to be put in a manual control mode.
STOP
The STOP command completely disables the unit (all outputs turn
off immediately). Once in this mode, nothing can override the unit
to turn it on. The controller will ignore all inputs and commands.
S.STP
Setting Soft Stop to YES turns the unit off in an orderly way, hon-
oring any time guards currently in effect.
SC.OV=SCH.N). If password pro-
FAN.F
By turning the FAN FORCE on, the supply fan is turned on and
will operate as it normally would, controlling duct static pressure
on VAV applications or just energizing the fan on CV applications.
To remove the force, press ENTER and then press the UP and
DOWN arrows simultaneously.
The remaining categories: INDP, FANS, AC.T.C, HMZR, COOL,
and HEAT are sub-menus with separate items and functions. See
Table 30.
Service Test Mode Logic
Operation in the Service Test mode is sub-menu specific ex-
cept for the INDP sub-menu. Leaving the sub-menu while a
test is being performed and attempting to start a different test
in the new sub-menu will cause the previous test to terminate.
When this happens, the new request will be delayed for 5 sec-
onds. For example, if compressors were turned on under the
COOL sub-menu, any attempt to turn on heating stages with-
in the HEAT sub-menu would immediately turn off the com-
pressors and 5 seconds later the controller would honor the
requested heat stages.
However, it is important to note that the user can leave a Service
Test mode to view any of the local display menus (Run Status,
Temperatures, Pressures, Setpoints, Inputs, Outputs, Configura-
tion, Time Clock, Operating Modes, and Alarms) and the control
will remain in the Service Test mode.
Independent Outputs
The INDP sub-menu items can be turned on and off regardless of
the other category states. For example, the humidifier relay or re-
mote alarm/auxiliary relay can be forced on in the INDP sub-
menu and will remain on if compressor stages were requested in
the COOL sub-menu.
Fans
Upon entering the FANS sub-menu, the user will be able to enact
either a manual or automatic style of test operation. The first item
in the sub-menu, Fan Test Mode Automatic (Service Test
FANS
F.MOD), allows the fan and the configured static pres-
sure or building pressure control to begin as in the application run
mode. During this automatic mode, it is possible to manually con-
trol condenser fans 1 to 4.
If Fan Test Mode Automatic (Service Test
set to NO, then the user will have individual control over duct stat-
ic pressure (VFD speed), building pressure and condenser fan con-
trol. Additionally, the controller will protect the system from de-
veloping too much static pressure. If the static pressure during
manual control rises above 3 in. wg or if the Static Pressure Set
Point (Setpoints
SPSP) is greater than 2.5 in. wg and static pres-
sure is 0.5 in. wg higher than SPSP, then all options in the FANS
menu will be cleared back to their default OFF states.
The power exhaust dampers can be energized individually or to-
gether and their damper positions can be forced to any position.
Actuators
In the AC.T.C sub-menu, it will be possible to control and cali-
brate actuators. Calibration is a mode in which the actuator moves
from 0% to the point at which the actuator stalls, and it will then
use this angular travel range as its "control angle". It will also be
possible to view the "control angle" adopted by the actuator after a
calibration.
Within this sub-menu, the user may calibrate and control econo-
mizer actuators 1 and 2, the building pressure actuators 1 and 2,
the hydronic heating coil actuator, and the humidifier steam valve
control actuator.
NOTE: Once a calibration has been started, the user cannot exit
test mode or select any other test mode operation until the calibra-
tion is complete.
38
FANS
F.MOD), is
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Table of Contents
Troubleshooting
