Programming Operating Schedules; Service Test - Carrier 48LC Series Controls, Start-Up, Operation And Troubleshooting

ECONOMIZER
When an economizer is field-installed, the unit must be configured
for it by setting SETTINGS UNIT CONFIGURATIONS
ECONOMIZER  ECON INSTALLED? to YES. The default
settings for the other economizer configurations should be satis-
factory. If they need to be changed, additional information about
these configuration settings can be found in "Economizer Opera-
tion" on page 27.
POWER EXHAUST
When power exhaust is field-installed, the unit must be config-
ured for it by setting SETTINGS  UNIT CONFIGURA-
TIONS  ECONOMIZER  POWER EXHAUST CON-
FIGS  PE1 RELAY CHANNEL to the channel the accesso-
ry was wired into. The default settings for the other power
exhaust configurations should be satisfactory. If they need to
be changed, additional information about these configurations
can be found in "Power Exhaust" on page 29.
ELECTRIC HEAT
When electric heat is field-installed, the number of electric heat
stages must be configured by setting SETTINGS  UNIT
CONFIGURATIONS  HEATING  HEATING STAGE
QTY per the installed heater.
FIRE SHUTDOWN
When Fire Shutdown or Smoke Detector sensors are field-in-
stalled, the unit must be configured for it by setting SET-
TINGS  UNIT CONFIGURATIONS  SWITCH INPUTS
CONFIGS  FIRE SHUTDOWN SW to normally open (0)
or normally closed (1).
OUTDOOR ENTHALPY
When an Outdoor Enthalpy sensor is field-installed, the unit must
be configured for it by setting SETTINGS  UNIT CONFIGU-
RATIONS  ANALOG INPUTS CONFIGS  OARH SEN-
SOR CHAN to the channel number the sensor was wired into.
IAQ SENSOR
When a CO sensor is field-installed, the unit must be config-
2
ured for it by setting SETTINGS  UNIT CONFIGURA-
TIONS  ANALOG INPUT CONFIGS  IAQ SENSOR
CHAN selects the unit response to this input. Default conver-
sion to 0 to 2000 ppm.
OAQ SENSOR
When an Outdoor Air Quality sensor is field-installed, the unit
must be configured for it by setting SETTINGS  UNIT
CONFIGURATIONS  ANALOG INPUT CONFIGS 
OAQ SENSOR CHAN. Default conversion to 0 to 2000 ppm.
FILTER STATUS
When a Filter Status sensor is field-installed, the unit must be
configured for it by setting SETTINGS UNIT CONFIGU-
RATIONS  SWITCH INPUT CONFIGS  FILTER SW
CHANNEL to normally open (0) or normally closed (1).

Programming Operating Schedules

When the building automation system you have the System-
Vu™ controller configured for (BAS Protocol Select) is None
(0) or CCN (1) the SystemVu controller can follow a standard
CCN occupancy table. The occupancy can be modified from
any CCN tool or from the local display.
OCCUPANCY SCHEDULE
For flexibility of scheduling, the occupancy programming is
broken into eight separate periods. For each period the sched-
ule contains the following fields: Day of Week, Occupied
From, and Occupied To.
When the Network protocol as configured in SETTINGS

NETWORK SETTINGS BAS PROTOCOL is BACnet, the
controller will support a BACnet weekly schedule and all types
of override and exception schedules allowed for BACnet
level 12 compliance. SystemVu will also support a special i-Vu
type of BACnet schedule sent from i-Vu or WebCTRL. Please
refer to the iVu operator's manual for more information.
Day Of Week
The day of week configuration consists of eight fields correspond-
ing to the seven days of the week and a holiday field in the follow-
ing order: Monday, Tuesday, Wednesday, Thursday, Friday, Satur-
day, Sunday, and Holiday. If a 1 is configured in the corresponding
place for a certain day of the week, the related "Occupied from"
and "Occupied to" times for that period will take effect on that day
of the week. If a 1 is placed in the holiday field, the related times
will take effect on a day configured as a holiday. A zero means the
schedule period will not apply to that day.
Day of week: Range 0 or 1
Default Values 0 for all of the periods.
Occupied From
This field is used to configure the hour and minute, in 24 hour
clock, that the mode for the controller will switch to occupied.
Occupied From: Units Hours:Minutes
Range 00:00 to 24:00
(Minutes 00 to 59)
Default Value 00:00
Occupied To
This field is used to configure the hour and minute, in 24 hour
clock, that the mode for the controller switches from occupied
to unoccupied.
Occupied To: Units Hours:Minutes
Range 00:00 to 24:00
(Minutes 00 to 59)
Default Value 00:00
When the building automation system configured to (BAS
PROTOCOL) is BACnet, the occupancy and holiday informa-
tion will be reset to defaults in preparation for receiving a
BACnet occupancy object. While participating on a BACnet
network these configurations cannot be changed at the local in-
terface or with CCN tools. All scheduling is done from the
BACnet interface designated to provide schedules.
The Service Test function can be used to verify proper opera-
tion of compressors, heating stages, indoor fan, outdoor fans,
Humidi-MiZer system operation, power exhaust fans, econo-
®
mizer, crankcase heaters, and the alarm relay. Use of Service
Test is recommended at initial system start up and during trou-
bleshooting. (See Table 4 for point details)
Service Test mode has the following changes from normal
operation:
• Outdoor air temperature limits for cooling circuits, econo-
mizer, and heating are ignored.
• Normal compressor time guards and other staging delays
are reduced to one minute or less.
• Circuit strike out time is reduced to 1 minute instead of
15 minutes.
• It may take up to 30 seconds to actually enter test mode af-
ter activating the command.

12

SERVICE TEST