Daikin ThinLine FCVC, Installation And Maintenance Manual

Page: 60 / 82

Page 60
Daikin
IM 1017
5 Connecting a jumper between terminals 16 and 17 will
disable the secondary output and change the main output
to heat mode.
6 Connection of a 24 VAC set-back signal will force the
control into unoccupied mode (see diagram). Pressing an
arrow key or the mode buttons on the thermostat cover
will disable the setback input for one hour.
7 Remove the LCD plastic protective film to complete the
installation. Reinstall the cover assembly. Install cover
locking screw provided.
8 Checkout: After wiring and installation are complete,
energize the system and check the operation. Adjust the
thermostat as necessary to complete at least one cycle.
Be sure the thermostat and all other equipment are
functioning correctly.
Electrical Ratings
Application Notes
1 When no changeover pipe sensor is used, the main
output controls cooling and the secondary output
controls heating.
2 The fan output, terminal 12, is energized whenever there
is a demand for heating or cooling. This output can be
connected to a relay that can be used to provide fan
cycling to terminal 1.
3 The changeover pipe sensor should be mounted on the
main coil input for water system operation and in the
main duct system for forced air operation.
4 The set point and operating mode will be retained on a
loss of power.
5 When using either a remote probe or pipe sensor, run
wiring away from any electrical motors or power wiring.
6 The auxiliary heat output supplies a 24 VAC signal with
call for heat. This output is shipped configured for staged
heat.
7 The thermostat is shipped with all dip switches in the
"ON" (closed) position.
8 The damper output is ON when mode is AUTO, HEAT
or COOL. Damper is OFF in set back.
Thermostat Operation
These thermostats are designed to control 0-10 VDC/4-0 mA
valves. These units may include a fan switch with one or more
fan speed selections.
Mode Button Operation
OFF: All thermostat outputs are off, fan is still operational if
connected to a manual fan switch.
AUTO: The thermostat automatically selects heating or
cooling mode depending upon the relationship of the setpoint
and the room temperature. The appropriate HEAT or COOL
indicator is enabled in addition to AUTO. A 3°F dead band is
provided to prevent short cycling between heating and cooling
modes. After changeover, the control points automatically shift
so that the heating off-point equals the set point temperature or
the cooling off-point equals the set point temperature.
COOL: The thermostat operates as a cooling only thermostat.
The heating outputs are disabled.
HEAT: The thermostat operates as a heatin- only thermostat.
The cooling outputs are disabled.
Fan Speed Switch Operation
Fan speed is determined by manual selection from fan switch
OFF to HIGH, MEDIUM and/or LOW. In the OFF position,
all outputs are off and the display is blank.
Up/Down Arrow Operation
A first touch of either arrow will display the setpoint (a single
set point is employed for both heating and cooling). Continued
pressure on either arrow will scroll the setpoint to new values.
After three consecutive seconds on either arrow, the selected
setpoint becomes effective and the display of the room
temperature resumes.
Configuration
Table 2: Circuit Board Jumper Configuration
Table 1: Fan switch (terminals 1-4) line voltage connections
Voltage
Rating
Inductive Resistive
Amps
Pilot
Duty Thermostatic
Switching
FLA LRA
24 VAC N.A. N.A. N.A. 24 VA 10 VA
120 VAC 5.8 34.8 6.0 125 VA NA
240 VAC 2.9 17.4 5.0 125 VA NA
277 VAC 2.4 14.4 4.2 125 VA NA
Jumper Closed On* Open Off
JP1 Local Sensing Remote Sensing
JP2 2 Pipe System 4 Pipe System
JP3 Factory Use Only
JP4 0-10 VOC Main Output 4-20 mA Main Output
JP5
0-10 VOC Secondary
Output
4-20 mA Secondary
Output