27
START-UP
Use the Carrier network communication software to start up
and configure the fan coil controller.
All set-up and set point configurations are factory-set and
field-adjustable.
Changes can be made using the ComfortWORKS
®
soft-
ware, ComfortVIEW™ software, or Network Service Tool.
The Network Service Tool is a portable interface device that al-
lows the user to change system set-up and set points from a
zone sensor or terminal control module. During start-up, the
Carrier software can also be used to verify communication
with each fan coil controller.
For specific operating instructions, refer to the literature
provided with the software.
Perform System
Check-Out
1. Check correctness and tightness of all power and com-
munication connections.
2. At the fan coil, check fan and system controls for
proper operation.
3. At the fan coil, check electrical system and connec-
tions of any optional electric reheat coil. If hot water
reheat is used, check piping and valves against job
drawings.
4. Check to be sure the area around the fan coil is clear of
construction dirt and debris.
5. Check that final filters are installed in the fan coil.
Dust and debris can adversely affect system operation.
6. Verify that the fan coil controller controls are properly
connected to the CCN bus.
Initial Operation and Test —
Perform the following
procedure:
1. Apply 24 vac power to the control.
2. Connect the service tool to the phone jack service port
of the controller.
3. Using the service tool, upload the controller from
address 0,1. The address may be set at this time. Make
sure that Service Tool is connected to this fan coil unit
only when changing the address.
Fan, Heat, and Cool Configuration and
Test —
Perform the following procedure to configure and
test the fan, cool, and heat:
1. Display the Fan Coil Service Configuration screen to
make sure the proper Cool Type, Heat Type, fan
speeds, and other options are configured. See the Con-
figuration section to answer questions about the indi-
vidual configurations.
2. Display the Points Display table. In most cases, the fan
will start up in low speed due to the default settings. If
the fan did not come on, forcing the fan output to ON
using the Points Display table will cause the fan to run
at low speed. Check to make sure the fan is running.
3. With the fan running at low speed, bring up the Fan
Coil Maintenance screen. Two points are available to
change fan speed to Medium or High. Change the
speeds by forcing the point. Make sure the fan runs at
the correct speeds. Change the points back to AUTO
after completing the test.
4. Heating and cooling operation can be tested with the
fan running in the occupied mode by forcing the space
temperature point. Force the point to a value 2 degrees
above the cooling set point to test cooling and
2 degrees below the heating set point to test heating.
5. If the fan coil is on a two-pipe system, operation of the
valve for both modes can be tested by forcing the value
of the changeover sensor to above 80 F. When forced
above 80 F, the changeover mode will change to heat.
(If the value of the changeover mode was already heat,
this is not necessary.) When forced below 65 F, the
changeover mode will change to cool.
CONFIGURATION
The following sections describe the computer configuration
screens which are used to configure the fan coil controller. The
screens shown may be displayed differently when using differ-
ent Carrier software.
Points Display Table —
The Points Display table is
used to monitor and change the fan coil controller set points.
See Fig. 33.
DESIRED MODE — The Desired Mode is determined by the
fan coil controller and can use information from a Linkage
Thermostat or its local occupancy space conditions and set
points.
Desired Mode:
Display Units
ASCII
Default Value
FAN ONLY
Display Range
OFF, OCC COOL, OCC
HEAT, FAN ONLY,
UNOCCOOL,
UNOCHEAT,
DEHUMID
Network Access Read Only
EQUIPMENT STATUS — The Equipment Status point pro-
vides a single point display on the main status screen of all
alarm conditions. If any conditions monitored in the zone con-
troller indicate an alarm condition, the value of this point will
change from normal to alarm.
Equipment Status: Display Units
ASCII
Default Value
ALARM
Display Range
ALARM, NORMAL
Network Access Read Only
CONTROLLING SET POINT — Controlling Set Point will
display either the heating master reference or the cooling mas-
ter reference depending upon what mode the fan coil is in. The
display will default to the heating master reference and will dis-
play the last controlling master reference when in neither heat-
ing nor cooling.
Controlling
Set Point:
Display Units
degrees F (degrees C)
Default Value
–40.0
Display Range
–40.0 to 245.0
Network Access Read Only
CONTROLLING TEMPERATURE — The Controlling Tem-
perature point displays the temperature of the device currently
being used by the fan coil controller to control heating and
cooling outputs. This value could come from a Linkage Ther-
mostat or a temperature sensor located in the conditioned
space.
Controlling
Temperature:
Display Units
degrees F (degrees C)
Default Value
–40.0
Display Range
–40.0 to 245.0
Network Access Read/Write
SPACE TEMPERATURE — This point displays the space
temperature from the 10K thermistor located in the space.
Space
Temperature:
Display Units
degrees F (degrees C)
Default Value
–40.0
Display Range
–40.0 to 245.0
Network Access Read/Write
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