Neptronic TFL24 User manual

EFC Thermostat
Specification & Installation Instructions
TFL2x.doc/100910 1
Technical Data TFL24 TFL25
Electrical connection 3 wire cable RJ45 (Ethernet cable)
Power supply From EFC
Power consumption 1 VA
Setpoint range 10ºC to 40ºC [50ºF to 104ºF]
Display resolution ±0.1ºC [0.2ºF]
Control accuracy Temperature: ±0.5ºC [0.9ºF] @ 22ºC [71.6ºF] typical calibrated
Proportional band 0.5ºC to 5ºC [1ºF to 10ºF] adjustable
Operating temperature 0ºC to 50ºC [32ºF to 122ºF]
Storage temperature -30ºC to 50ºC [-22ºF to 122ºF]
Relative humidity 5 to 95 % non condensing
Housing degree of protection IP 30 (EN 60529)
Weight 120 g. [0.25 lb]
Note The TFL2x can only work with the EFC. All the inputs/outputs are located on the EFC except for
the temperature sensor built-in the TFL2x.
Interface
C
F
%RH
MO TU WE TH FR SA SU
AM PM
.
.
.
.
Display Symbols
Cooling ON
100% output
A: Automatic Menu set-up Lock ON
Heating ON
100% output
A: Automatic Programming mode
(Technician setting)
Fan O
N
3rd speed activated
A: Automatic Energy saving mode ON
or ºC: Celsius scale
ºF: Fahrenheit scale Communication Status
Alarm
Dimensions
A
B
C
D
E
ºF / º C
Dimension Imperial (in) Metric (mm)
A
2.85 73
B4.85 123
C1.00 24
D2.36 60
E3.27 83
EFC Series fan coil controller
Features:
•Used to program/configure the EFC Fan Coil controller
•Attractive modern look with large LCD and backlight
•Icons driven information and 1 line of text information
•3 wire or RJ45 Ethernet cable between thermostat & EFC
•Programmable analog & digital outputs
•Selectable fan speed contacts
•Selectable Fahrenheit or Celsius scale
•Occupancy sensor (programmable)
•Multi level lockable access menu
•Selectable internal or external temperature sensor
•Programmable proportional control band & dead band
•Change over by contact or external temperature sensor available
•Anti-freeze protection
•BACnet®MS/TP @ 9600, 19200, 38400, 76800bps
•Selectable MAC Address by dip switch on the EFCB
•Selectable device instance via technician menu
TFL24
TFL25

TFL2x Specification & Installation Instructions
2
Mounting Instructions
TFL24:
A EDCB
TFL25: A
E
D
C
B
CAUTION: Risk of malfunction. Remove power prior to separate thermostat cover (control module) from its base.
A. Remove the screw (captive) holding the base and the front cover of the thermostat.
B. Lift the front cover of the thermostat to separate it from the base.
C. Pull the cable through the base hole.
D. Secure the base to the wall using wall anchors and screws (supplied). Make the appropriate connections.
E. Mount the control module on the base and secure using the screw (from step A).
Settings on PC Board & Connections
Mode Selection (JP1)
PGM
RUN
JP1
Jumper (JP1) on RUN:
Thermostat is in Operation Mode.
Thermostat must be set in this mode to operate properly.
If not locked, setpoint and control mode (Heating & Cooling
ON, Cooling only ON or Heating only ON) can be modified by
end user. PGM
RUN
JP1
Jumper (JP1) on PGM:
Thermostat is set in Programming Mode.
Refer to the following section about all settings description
TFL24 – 3 wire cable (TB1 #1, 2 & 3)
Connect TB1 #6 (A+) & #7 (B-) to EFCB for BACnet service port to work TFL25 – RJ45 Ethernet cable BACnet service port works only if TFL2x is connected to EFCB
Connecting
strip TB1
Temperature
sensor
TB1
1 2 3 4 5 6 7
Mode selector
JP1
PGM RUN
COM
24VAC
COM BUS
A+
B-
BACnet
service port
Temperature
sensor
Mode selector
JP1
PGM RUN
RJ45 connector
BACnet
service port

TFL2x Specification & Installation Instructions
3
Programming Mode
When in this mode the symbol is displayed. Press on to advance to the next program function, press on button to return
to the previous function and press on button or to change values. You can exit the programming mode at any time; changed
values will automatically be recorded.
Step Display Description Values
1 C
Internal temperature sensor calibration:
Display scrolls “INSIDE TEMPER SENSOR OFFSET” and shows the temperature read by
internal temperature sensor.
You can adjust the calibration of the sensor by comparison with a known
thermometer. For example if thermostat has been installed in an area where
temperature is slightly different than the typical room temperature (thermostat
placed right under the air diffuser).
Range : 5 to 45ºC [41 to 113ºF]
Increment: 0.1ºC [0.2ºF]
(max. offset ± 5 ºC)
(Factory calibrated)
2 C
Minimum setpoint:
Display scrolls “ADJUST MINIMUM USER SETPNT” and shows the minimum setpoint
temperature.
Select the desired minimum setpoint temperature.
The minimum value is restricted by the maximum value (step #3).
Minimum range:
10 to 40ºC [50 to 104ºF]
Increment: 0.5ºC [1ºF]
Default value: 15ºC [59ºF]
3 C
Maximum setpoint
Display scrolls “ADJUST MAXIMUM USER SETPNT” and shows the maximum setpoint
temperature.
Select the desired maximum setpoint temperature.
The maximum value is restricted by the minimum value (step #2).
Maximum range
10 to 40ºC [50 to 104ºF]
Increment: 0.5ºC [1ºF]
Default value: 30ºC [86ºF]
4
Locking the setpoint :
Display scrolls “USER SETPNT LOCKED” and shows the selected value.
You can lock or unlock the setpoint adjustment by end user. If locked the lock
symbol will appear.
Default value: NO (Unlocked)
5 C
Adjust setpoint:
Display scrolls “ADJUST INTERN SETPNT” and shows the temperature setpoint.
Select the desired setpoint. It should be within the temperature range.
Lock symbol will appear if the setpoint was locked at the previous step.
Setpoint value is restricted by the minimum and maximum value (step 2 & 3).
Setpoint range :
10 to 40ºC [50 to 104ºF]
Increment: 0.5ºC [1ºF]
Default value: 22ºC [72ºF]
6
Adjust the control mode:
Display scrolls “ADJUST TEMPER CONTROL MODE”.
Select which control mode you want to authorize: Automatic (Auto), cooling or
heating (ON), heating only (HEAt), cooling only (COOL).
If you want to authorize this all modes, choose Automatic mode.
Default value: Aut (Automatic cooling and
heating)
7
Set On/Off function enable or disable:
Display scrolls “ENABLE ON OFF CONTROL MODE.
You can enable (YES) or disable (NO) the Off mode adjustment by end user.
Default value: YES (Enable)

TFL2x Specification & Installation Instructions
4
Step Display Description Values
8
Set TO1 signal ramp:
Display scrolls “SELECT TO1 SIGNAL RAMP” and shows the selected ramp.
Select the desired ramp for TO1 from the options provided:
OFF, COr, HEAt,COOL, rHt (reheat without fan), rHt (reheat with fan)
Note: The symbol indicates that the fan outputs will be activated according to
the demand.
If you selected “OFF”, go directly to step #14.
Default value: OFF (Not used)
9
Set TO1 output signal:
Display scrolls “SELECT TO1 OUTPUT SIGNAL”.
Select the desired signal output for to1 output from the options provided: OnOf,
PuLs (pulse) or FLt (floating) signal output.
Notes:
•If “FLt” (floating) is selected, the same ramp will be used for TO2. TO1 will
be set to close and TO2 open.
•“PuLs” available only if you choose Heating or Reheat (with or without fan)
at step #8.
If you selected on/off signal, go to step #12.
If you selected pulse signal, go to step #14.
Default value: OnOF (On/Off)
10
Set floating time: (If “FLt” was selected at step #9)
Display scrolls “set fLOATING TIME IN SECONDS” and shows the floating time value (in
seconds).
Select desired value for the floating time signal.
Range: 15 to 250 sec.
Increment: 5 sec.
Default value: 100 sec.
11
Set motor direction:
Select the desired direction for the motor, either:
Direct “clockwise” (0 to 90º) or
Reverse “counter clockwise” (90 to 0º)
Go to step #18.
Default value: dir (Direct)
12
Set TO1 on-off closing level: (If “OnOf” was selected at step #9)
Display scrolls “SELECT TO1 CLOSE PERCENT” and shows the value of the close position
of the TO1 output.
Select the percentage at which you want TO1 to close: x% of demand of the
ramp selected at step #8. Range: 15 to 80
Increment: 1 %
Default value: 25 (25% of the demand)
13
Set TO1 on-off opening level: (If “OnOf” was selected at step #9)
Display scrolls “SELECT TO1 OPEN PERCENT” and shows the value of the opening level
of the TO1 output.
Select the percentage at which you want TO1 to open: at x% of the demand of
the ramp that you selected at step # 8. Range: 0 to TO1 closing- 4%
Increment: 1%
Default value: 0 (0% of the demand)

TFL2x Specification & Installation Instructions
5
Step Display Description Values
14
Set TO2 signal ramp:
Display scrolls “SELECT TO2 SIGNAL RAMP” and shows the selected ramp.
Select the desired ramp for TO2 from the options provided:
OFF, COr, HEAt,COOL, rHt (reheat without fan), rHt (reheat with fan)
Note: The symbol indicates that the fan outputs will be activated according to
the demand.
If you selected “OFF”, go directly to step #18.
Default value: Off
15
Set TO2 output signal:
Display scrolls “SELECT TO2 OUTPUT SIGNAL” and shows the current setting
Select the desired signal output for TO2 output, either: on/off or pulse signal
output.
Note: “PuLS” is available only if you choose Heating or Reheat (with or without
fan) at step #14.
If you selected pulse signal, go to step #18.
Default value: On (On-Off)
16
Set TO2 on-off closing level: (If “OnOF” was selected at step #15)
Display scrolls “SELECT TO2 CLOSE PERCENT” and shows the value of the close
position of the TO2 output.
Select the percentage at which you want TO2 to close: x% of demand of the
ramp selected at step #14.
Range: 15 to 80
Increment: 1 %
Default value: 50 (50% of the demand)
17
Set TO2 on-off opening level: (If “OnOf” was selected at step #8)
Display scrolls “SELECT TO2 OPEN PERCENT” and shows the value of the opening level
of the TO2 output.
Select the percentage at which you want TO2 to open: at x% of the demand of
the ramp that you selected at step # 14. Range: 0 to TO1 closing- 4%
Increment: 1%
Default value: 25 (25% of the demand)
18
Set TO3 signal ramp:
Display scrolls “SELECT TO3 SIGNAL RAMP” and shows the selected ramp.
Select the desired ramp for TO3 from the options provided:
OFF, COr, HEAt,COOL, rHt (reheat without fan), rHt (reheat with fan)
Note: The symbol indicates that the fan outputs will be activated according to
the demand.
If you selected “OFF”, go directly to step #22.
Default value: Off
19
Set TO3 output signal:
Display scrolls “SELECT TO3 OUTPUT SIGNAL”
Select the desired signal output for TO3 output, either: on/off or pulse signal
output.
Note: “PuLS” is available only if you choose Heating or Reheat (with or without
fan) at step #18.
If you selected pulse signal, go directly to step #22.
Default value: On (On-Off)

TFL2x Specification & Installation Instructions
6
Step Display Description Values
20
Set TO3 on-off closing level: (If “OnOF” was selected at step #19)
Display scrolls “SELECT TO3 CLOSE PERCENT” and shows the value of the close
position of the TO3 output.
Select the percentage at which you want TO3 to close: x% of demand of the
ramp selected at step #18.
Range: 15 to 80
Increment: 1 %
Default value: 80 (80% of the demand)
21
Set TO3 on-off opening level: (If “OnOF” was selected at step #19)
Display scrolls “SELECT TO3 OPEN PERCENT” and shows the value of the opening level
of the TO3 output.
Select the percentage at which you want TO3 to open: at x% of the demand of
the ramp that you selected at step # 18. Range: 0 to TO1 closing- 4%
Increment: 1%
Default value: 50 (50% of the demand)
22
Set AO1 analog signal ramp:
Display scrolls “SELECT AO1 ANALOG RAMP” and shows the selected ramp.
Select the desired ramp for AO1 from the options provided:
OFF, COr, HEAt, COOL, rHt (without fan) or rHt (with fan).
Note: The symbol indicates that the fan outputs will be activated according to
the demand.
If you selected “OFF”, go directly to step #25.
Default value: COOL (Cooling ramp)
23
Minimum voltage of AO1 output:
This menu will only be available if the signal ramp for AO1 is no set to OFF.
Display scrolls “AO1 OUTPUT MIN VDC” and shows the value of the minimum position of
the AO1 ramp.
Please select the desired value of the minimum position of the AO1 ramp.
(This is the “zero” value)
The minimum value is restricted by the maximum value (step #24).
Range: 0.0 to 10.0 Volt
Increment: 0.1 Volt
Default value: 0.0 Volt
24
Maximum voltage of AO1 output:
This menu will only be available if the signal ramp for AO1 is no set to OFF.
Display scrolls “AO1 OUTPUT MAX VDC” and the value of the maximum position of the
AO1 ramp.
Please select the desired value of the minimum position of the AO1 ramp.
(This is the “span” value)
The maximum value is restricted by the minimum value (step #23).
Range: 0.0 to 10.0 Volt
Increment: 0.1 Volt
Default value: 10.0 Volt
25
Set AO2 analog signal ramp:
Display scrolls “SELECT AO2 ANALOG RAMP” and shows the selected ramp.
Select the desired ramp for AO2 from the options provided.
OFF, COr, HEAt, COOL, rHt (without fan) or rHt (with fan).
Note: The symbol indicates that the fan outputs will be activated according to
the demand.
If you selected “OFF”, go directly to step #28.
Default value: OFF

TFL2x Specification & Installation Instructions
7
Step Display Description Values
26
Minimum voltage of AO2 output:
This menu will only be available if the signal ramp for AO2 is not set to OFF.
Display scrolls “AO2 OUTPUT Min VDC” and shows the value of the minimum position
for the AO2 ramp.
Select the desired value of the minimum position of the AO2 ramp.
(This is the “zero” value)
The minimum value is restricted by the maximum value (step #27).
Range: 0.0 to 10.0 Volt
Increment: 0.1 Volt
Default value: 0.0 Volt
27
Maximum voltage of AO2 output:
This menu will only be available if the signal ramp for AO2 is not set to OFF.
Display scrolls “AO2 OUTPUT MAX VDC” and shows the value of the maximum position
of the AO2 ramp.
Select the desired value of the minimum position of the AO2 ramp.
(This is the “span” value)
The maximum value is restricted by the minimum value (step #26).
Range: 0.0 to 10.0 Volt
Increment: 0.1 Volt
Default value: 10.0 Volt
28*
Set DO1 digital output ramp:
Display scrolls “SELECT DO1 SIGNAL RAMP” and shows the selected ramp.
Select the desired ramp for on DO1 from the options provided:
OFF, COr, HEAt, COOL, rHt (without fan) or rHt (with fan).
Note: The symbol indicates that the fan outputs will be activated according to
the demand.
If you selected “OFF”, go directly to step #32.
Default value: Ht (Heating ramp)
29*
Set DO1 closing delay:
Display scrolls “DO1 CLOSE DELAY MINUTES” and shows the programmed closing delay
for the DO1 output.
This is the delay (in minutes) before the output is activated.
Range: 0 to 15 min
Increment: 1 min
Default value: 0 min
30*
Set DO1 closing level:
Display scrolls “SELECT DO1 CLOSE PERCENT” and shows the value of the close
position of the DO1 output.
Select the percentage of the demand at which you want DO1 to close based on
the demand of the selected ramp at step #28.
Range: 15 to 80%
Increment: 1 %
Default value: 25 (25% of the demand)
31*
Set DO1 opening level:
Display scrolls “SELECT DO1 OPEN PERCENT” and shows the value of the open position
of the DO1 output.
Select the percentage of the demand at which you want DO1 to open based on
the demand of the selected ramp at step #28.
Range: 0 to d1c - 4%
Increment: 1 %
Default value: 0 (0% of the demand)
*Only on selected models

TFL2x Specification & Installation Instructions
8
Step Display Description Values
32*
Set DO2 digital output ramp:
Display scrolls “SELECT DO2 SIGNAL RAMP” and shows the selected ramp.
Select the desired ramp for on DO2 from the options provided:
OFF, COr, HEAt, COOL, rHt (without fan) or rHt (with fan).
Note: The symbol indicates that the fan outputs will be activated according to
the demand.
If you selected “OFF”, go to step #36.
Default value: Ht (Heating ramp)
33*
Set DO2 closing delay:
Display scrolls “DO2 CLOSE DELAY MINUTES” and shows the programmed closing delay
for the DO2 output. MIN symbol is also displayed.
This is the delay (in minutes) before the output is activated.
Range: 0 to 15 min
Increment: 1 min
Default value: 0 min
34*
Set DO2 closing level:
Display scrolls “SELECT DO2 CLOSE PERCENT” and the value of the close position of the
DO2 output.
Select the percentage of the demand at which you want DO2 to close based on
the demand of the selected ramp at step #32.
Range: 15 to 80%
Increment: 1 %
Default value: 50 (50% of the demand)
35*
Set DO2 opening level:
Display scrolls “SELECT DO2 OPEN PERCENT” and the value of the open position of the
DO2 output.
Select the percentage of the demand at which you want DO2 to open based on
the demand of the selected ramp at step #32.
Range: 0 to d2c - 4%
Increment: 1 %
Default value: 25 (25% of the demand)
36*
Set DO3 digital output ramp:
Display scrolls “SELECT DO3 SIGNAL RAMP” and the selected ramp.
Select which ramp you want for on DO3.
OFF, COr, HEAt, COOL, rHt (without fan) or rHt (with fan).
Note: The symbol indicates that the fan outputs will be activated according to
the demand.
If you selected “OFF”, go directly to step #40.
Default value: Ht (Heating ramp)
37*
Set DO3 closing delay:
Display scrolls “DO3 CLOSE DELAY MINUTES” and programmed closing delay for the
DO3 output.
This is the delay (in minutes) before the output is activated.
Range: 0 to 15 min
Increment: 1 min
Default value: 0 min
*Only on selected models

TFL2x Specification & Installation Instructions
9
Step Display Description Values
38*
Set DO3 closing level:
Display scrolls “SELECT DO3 CLOSE PERCENT” and the value of the close position of the
DO3 output.
Select the percentage of the demand at which you want DO3 to close based on
the demand of the selected ramp at step #36.
Range: 15 to 80%
Increment: 1 %
Default value: 80 (80% of the demand)
39*
Set DO3 opening level:
Display scrolls “SELECT DO3 OPEN PERCENT” and the value of the open position of the
DO3 output.
Select the percentage of the demand at which you want DO3 to open based on
the demand of the selected ramp at step #36.
Range: 0 to d3c - 4%
Increment: 1 %
Default value: 50 (50% of the demand)
40*
Set DO4 digital output ramp:
Display scrolls “SELECT DO4 SIGNAL RAMP” and the selected ramp.
Select which ramp you want for on DO4.
OFF, COr, HEAt, COOL, rHt (without fan) or rHt (with fan).
Note: The symbol indicates that the fan outputs will be activated according to
the demand.
If you selected “OFF”, go directly to step #44.
Default value: COOL (Cooling ramp)
41*
Set DO4 closing delay:
Display scrolls “DO4 CLOSE DELAY MINUTES” and programmed closing delay for the
DO4 output.
This is the delay (in minutes) before the output is activated.
Range: 0 to 15 min
Increment: 1 min
Default value: 0 min
42*
Set DO4 closing level:
Display scrolls “SELECT DO4 CLOSE PERCENT” and the value of the close position of the
DO4 output.
Select the percentage of the demand at which you want DO4 to close based on
the demand of the selected ramp at step #40.
Range: 15 to 80%
Increment: 1 %
Default value: 20 (20% of the demand)
43*
Set DO4 opening level:
Display scrolls “SELECT DO4 OPEN PERCENT” and the value of the open position of the
DO4 output.
Select the percentage of the demand at which you want DO4 to open based on
the demand of the selected ramp at step #40.
Range: 0 to d4c - 4%
Increment: 1 %
Default value: 0 (0% of the demand)
44
Internal or external temperature sensor selection:
Display scrolls “SELECT TEMPER SENSOR”.
Please select internal (in) or external sensor (out).
If you selected “In”, proceed to step #46.
If you selected Out, proceed to step #45.
Default value: In (Internal
temperature sensor)
*Only on selected models

TFL2x Specification & Installation Instructions
10
Step Display Description Values
45
External temperature sensor calibration (AI1):
This option is only available if the temperature sensor (step 44) is set to Out.
Display scrolls “EXTERNAL TEMPER SENSOR OFFSET” and the temperature read by the
external temperature sensor (if connected).
You can adjust the calibration of the external sensor by comparison with a
known thermometer.
If the sensor is not connected or short circuited, the display shows “---”.
Range:
5 to 45ºC [41 to 113.0ºF] (max. offset ± 5 ºC)
Increment: 0.1ºC [0.2ºF]
46
Change over mode selection (AI2):
Display scrolls “SELECT CH OVER INPUT SIGNAL”.
Select the change over mode: normally cool, normally heat or external sensor.
If normally cool “NoCL” is selected, heating mode will be activated upon closing
of AI2 contact.
If normally heat “NoHt” is selected, cooling mode will be activated upon closing
of AI2 contact.
If external sensor “SEnS” is selected, heating mode will be activated when
temperature read by the external sensor is above the change over setpoint
temperature and cooling mode will be activated when the temperature read by
external sensor is below, see step #47.
If “SEnS” is not selected, go directly to step #48.
D
efault value: SEns (External sensor)
47
Change over setpoint temperature: (If “SEnS” was selected at step #46)
Display scrolls “CH OVER SETPNT TEMPER” and the change over setpoint temperature.
Select the change over setpoint temperature.
Note: Heating mode will be activated when temperature read by the external
sensor is above the change over setpoint temperature “tCo”, and cooling mode
will be activated when temperature read by the external sensor is under “tCo”.
Range: 10 to 40ºC [50 to 104ºF]
Increment: 0.5ºC [1ºF]
Default value: 24ºC [82ºF]
48
Flow switch (DI1):
Display scrolls “SELECT FLOW SW CONTACT” and the selected setting.
Please select normally close “NC” or normally open “NO”.
The symbol will come on in operation mode if the contact input changes state.
D
efau
l
t value: NO (Normally open)
49
Dirty filter (DI2):
Display scrolls “SELECT DIRTY FILTER CONTACT” and the selected setting.
Please select normally close “NC” or normally open “NO”.
The symbol will come on in operation mode if the contact input changes state.
D
efault value: NO (Normally open)
50
Occupancy or Night Set Back (DI3):
Display scrolls “SELECT nsb or OCC CONTACT” and the selected setting.
Moon symbol is also displayed.
Select normally close “NC”, normally open “NO” or “OFF”.
Note: If “OFF” is selected, DI3 can still be used through BACnet.
If you selected “OFF”, go directly to step #57.
If you selected “nSb.o or nSb.c”, go directly to step #53.
Default value: OCC.o
(Occupancy Normally open)
51
Minimum no occupancy delay (DI3):
Display scrolls “OCC minimum Time in minutes” and shows the selected delay value (in
minutes).
Moon symbol is also displayed.
Input the desired delay for the thermostat before going into “no occupancy” mode.
Range: 0 to 240 min
Increment: 1 min
Default value: 30 min

TFL2x Specification & Installation Instructions
11
Step Display Description Values
52
Maximum occupancy override delay (DI3):
Display scrolls “NO OCC DELAY OVERIDE MINUTES” and shows the selected delay value
(in minutes). Moon symbol is also displayed.
Input the maximum delay available to the user.
When in no occupancy mode, the user can press the button to override. Each
time he press it, the override delay will increase by 15 min until it reaches the
value set here.
Go directly to step #55.
Range: 0 to 180 min
Increment: 15 min
Default value: 120 min
53
Night Set Back Mode:
Display scrolls “nsb mode” and shows the selected mode of operation.
If you select “OFF” the thermostat outputs/control will be off while in night set
back.
If you select “StP” the thermostat outputs/control will be active based on the
cooling and heating night set back setpoints programmed at step #55 & #56.
If you selected “OFF”, go directly to step #57.
54
Night Set Back override delay (DI3):
Display scrolls “Nsb DELAY OVERIDE MINUTES” and shows the selected delay value (in
minutes).
Moon symbol is also displayed.
Input the override delay.
Range: 0 to 180 min
Increment: 15 min
Default value: 120 min
55
Night set back or no occupancy heating setpoint:
Display scrolls “nsb or nO OCC HEATING SETPNT” and shows the selected setpoint.
Moon symbol is also displayed.
Select the desired heating setpoint temperature.
This value is restricted by the cooling value (step #56).
Setpoint range: 10 to 40ºC [50 to 104ºF]
Increment: 0.5ºC [1ºF]
Default value: 16ºC [61ºF]
56
Night set back or no occupancy cooling setpoint:
Display scrolls “NSB or nO OCC COOLING SETPNT” and the selected setpoint.
Moon symbol is also displayed.
Select the desired cooling setpoint temperature.
This value is restricted by the heating value (step #55).
Setpoint range: 10 to 40ºC [50 to 104ºF]
Increment: 0.5ºC [1ºF]
Default value: 28ºC [82ºF]
57 C
Proportional band for change over:
Display scrolls “CONTROL RAMP CH OVER” and the value of the change over
proportional band, change over symbols is also displayed.
Select the desired value for the change over proportional band.
Proportional band range:
0.5 to 5.0ºC [1 to 10ºF]
Increment: 0.5ºC [1ºF]
Default value: 2.0ºC [4ºF]
58 C
Dead band for change over:
Display scrolls “CONTROL DEAD BAND CH OVER” and the value of the change over dead
band, change over symbols are also displayed.
Select the desired value for the change over dead band.
Dead band range:
0.0 to 5.0ºC [0.6 to 10.0ºF]
Increment: 0.1ºC [0.2ºF]
Default value: 0.3ºC [0.6ºF]
59
Proportional band for heating:
Display scrolls “CONTROL RAMP HEATING” and the value of the heating proportional
band, heating symbol is also displayed.
Select the desired value for heating proportional band.
Proportional band range:
0.5 to 5.0ºC [1 to 10ºF]
Increment: 0.5ºC [1ºF]
Default value: 2.0ºC [4ºF]

TFL2x Specification & Installation Instructions
12
Step Display Description Values
60
Dead band for heating:
Display scrolls “CONTROL DEAD BAND HEATING” and the value of the heating dead
band, heating symbol is also displayed.
Select the desired value for the heating dead band.
Dead band range:
0.0 to 5.0ºC [0.6 to 10.0ºF]
Increment: 0.1ºC [0.2ºF]
Default value: 0.3ºC [0.6ºF]
61
Proportional band for cooling:
Display scrolls “CONTROL RAMP COOLING” and the value of the cooling proportional
band, cooling symbol is also displayed.
Select the desired value for cooling proportional band.
Proportional band range:
0.5 to 5.0ºC [1 to 10ºF]
Increment: 0.5ºC [1ºF]
Default value: 2.0ºC [4ºF]
62
Dead band for cooling:
Display scrolls “CONTROL DEAD BAND COOLING” and the value of the cooling dead
band, cooling symbol is also displayed.
Select the desired value for the cooling dead band.
Dead band range:
0.0 to 5.0ºC [0.6 to 10.0ºF]
Increment: 0.1ºC [0.2ºF]
Default value: 0.3ºC [0.6ºF]
63
Proportional band for reheat (with or without fan):
Display scrolls “CONTROL RAMP REHEAT” and the value of the reheat proportional
band, reheat symbol is also displayed.
Select the desired value for reheat proportional band.
Proportional band range:
0.5 to 5.0ºC [1 to 10ºF]
Increment: 0.5ºC [1ºF]
Default value: 2.0ºC [4ºF]
64
Dead band for reheat (with or without fan):
Display scrolls “CONTROL DEAD BAND REHEAT” and the value of the reheat dead band,
reheat symbols is also displayed.
Select the desired value for reheat dead band.
Dead band range :
0.0 to 5.0ºC [0.6 to 10.0ºF]
Increment: 0.1ºC [0.2ºF]
Default value: 0.3ºC [0.6ºF]
65
Set fan speed automatic mode enable or disable:
Display scrolls “ENABLE FAN AUTO MODE” and Fan symbol is also displayed.
You can enable or disable the Automatic mode adjustment by end user.
If you selected to disable the automatic mode, go directly to step #67.
Default value: YES (Enable)
66
Time out fan contact:
Display scrolls “FAN AUTO TIMEOUT seconds” and shows the automatic shutoff delay
value (in minutes) when there is no demand. MIN and fan symbols are also
displayed.
Select the desired value for the automatic shutoff delay.
Range: 0 to 255 sec.
Increment: 1 sec.
Default value: 120 sec.
67
Fan speed contact:
Display scrolls “SELECT FAN SPEED SIGNAL” and shows the speed of the fan. Fan
symbol is also displayed.
Select which speed contact you want: speed 1, speed 2 or speed 3.
Default value: 3 (Hi speed)

TFL2x Specification & Installation Instructions
13
Step Display Description Values
68
Fan damping factor:
Display scrolls “ADJUST DAMPING FACTOR SECONDS” and shows the selected delay
value (in seconds).
Fan symbol is also displayed.
Select the damping factor for the fan.
Range: 0 to 10 sec.
Increment: 1 sec.
Default value: 0 sec.
69
Anti-cycling delay cooling contact (protection for compressor):
Display scrolls “COOLING ANTI CYCLE MINUTES” and shows the value (in minutes) of the
delay to activate/reactivate cooling contact. The MIN symbol is also displayed.
Select the desired value for the delay cooling contact.
Range: 0 to 15 min.
Increment: 1 min.
Default value: 2 min.
70
Integration time factor for heating:
Display scrolls “HEATING INTGRAL TIME IN SECONDS” and shows the time in seconds for
the integration factor compensation. Heating symbol is also displayed.
Select the desired value for the integration factor compensation.
Range: 0 to 250 seconds
Increment: 5 seconds
Default value: 0 seconds
71
Integration time factor for cooling:
Display scrolls “COOLING INTGRAL TIME IN SECONDS” and shows the time in seconds for
the integration factor compensation. Cooling symbol is also displayed.
Select the desired value for the integration factor compensation.
Range: 0 to 250 seconds
Increment: 5 seconds
Default value: 0 seconds
72
Enable or disable anti-freeze protection:
Display scrolls “ENABLE ANTI FREEZE PROTECT” and shows the selected setting.
You can enable or disable the anti-freeze function.
When enabled, if temperature drops to 4ºC [39ºF], heat and reheat will start even
if thermostat is in OFF mode.
Heat and reheat will stop when temperature reaches 5ºC [41ºF].
Default value: NO (disable)
73B
BACnet bauds rate:
Display shows “ADjUST COMPORT BAUDS RATES” and shows the value of the baud rate
in kBps.
Select the desired bauds for communication: 9.6, 19.2, 38.4, 76.8. Range: 9600, 19200, 38400, 76800
Default value: 76.8 kBps
74B
BACnet MAC address:
Display shows “ADjUST MSTP MAC address” and shows the value of the MAC
address.
If dip switches 0 to 7 of DS2 are all in the Off position, then you can change the
MAC address by using the “∆” or “∇” buttons.
Each device must have a unique MAC address on a network.
Range: 0 to 127
Default value: 0
75B
BACnet device instance:
Display shows “ADJUST DEVICE INSTANC 0 15 3000”.
To change the device, select “YES” and go to next step. If the device instance is
not changed in programming mode (step #75 & 76), it will be automatically
modified according to the MAC address selected by the dip switch on the EFCB.
If you do not want to change the device, go directly to step #1.
Default value: NO
76B
BACnet device instance (cont’d):
Display scrolls the device address value.
You can modify the device address by increasing or decreasing the blinking digit
with “∆” or “∇” buttons. To modify the next digit, on right, press , to return to
the previous digit press ºF / º C .
Each device must have a unique device instance on a network.
Range: 0 to 4194302
Increment: 1 digit
Default value: 0153000
BOnly on BACnet models

TFL2x Specification & Installation Instructions
14
Operation Mode
Step Description Display
A
At powering up, thermostat will light display and activate all LCD segments for 2
seconds.
Illuminating the LCD
To illuminate the LCD, simply push or buttons. LCD will light for 8 seconds.
Temperature display
In operation mode, thermostat will automatically display temperature read.
To change the scale between ºC and ºF, press on both and for 3 seconds.
C
B
Setpoint display and adjustment:
To display the setpoint, press twice on or Setpoint will be displayed for 5 seconds.
To adjust setpoint, press on or while the temperature setpoint is displayed.
Note: If setpoint adjustment has been locked, symbol will be displayed. C
C
C
Control mode selection:
To change the control mode, press on . Control mode will be displayed for 5
seconds. You can choose one of the following:
9Automatic Cooling or Heating (Aut)
9OFF
(if not disable in programming mode)
9Cooling only (on, with cooling symbol)
9Heating only (on, with heating symbol)
Note: These selections can vary according to the choice made on step #6 & 7.
D
Fan speed mode selection:
To change the fan speed mode, press on . Fan speed mode will be displayed for 5
seconds. You can choose one of the following:
9Automatic speed
(if not disabled in programming mode)
9Low speed
9Medium speed
9High speed
Notes:
•These selections can vary according to the choice made in programming steps
#65 & 67.
•If fan speed mode selection has been locked, symbol will be displayed.
•If in No Occupancy mode, the button now serves as the override button.
E
Night set back (NSB) or no occupancy override:
When thermostat is in night set back or no occupancy mode, moon symbol is
displayed, so setpoint for cooling and/or heating are increased as per the setting made
in programming mode.
If not locked, night set back can be overridden for a predetermined period by pressing
any of the 4 buttons. During the override period the symbol will flash. If does not
flash, the override period is finished or the night set back or no occupancy override has
been locked in programming mode.
If not locked, no occupancy mode can be overridden for a period by pressing the
button. Each time you press the button, 15 minutes are added to the override. The
will blink and the remaining time to the override will be displayed in minutes.
C
Recycling at end of life
At end of life, please return the thermostat to your Neptronic®local distributor for recycling. If you need to find the nearest Neptronic®
authorized distributor, please consult www.neptronic.com.

EFC Fan Coil Controller
Specification & Installation Instructions
TFL2x.doc/100902 15
Technical Data EFC
Thermostat connection RJ45 or 3 wire cable (depending on model)
Power supply 24, 120 or 240 Vac (depending on model)
Transformer output 8 VA max. 24 Vac thermal fused.
Relay output 3 relays standard, up to 4 extra relay
Relay rating 7 amps
Operating temperature 0ºC to 50ºC [32ºF to 122ºF]
Storage temperature -30ºC to 50ºC [-22ºF to 122ºF]
Relative humidity 5 to 95 % non condensing
Weight 635 g. [1.4 lb]
Dimensions
B
AC
Dimension Imperial (in) Metric (mm)
A 6.3 160
B 5 126
C2.25 57
Features:
•Programmable analog & digital outputs
•Selectable fan speed contacts
•Selectable Fahrenheit or Celsius scale
•Occupancy sensor (programmable)
•Selectable internal or external temperature
sensor
•Programmable proportional control band &
dead band
•Change over by contact or external
temperature sensor available
•Anti-freeze protection
•BACnet®MS/TP @ 9600, 19200, 38400,
76800bps
•Selectable MAC Address by dip switch on the
EFCB
B 1 2E F C W Q 4
_: No communication
B: BACnet communication
0: 24 Vac
1: 120 Vac
2: 240 Vac
W: 3 wire connection
R: RJ45 connection
1: 1 extra 7 amps relay
2: 2 extra 7 amps relays
3: 3 extra 7 amps relays
4: 4 extra 7 amps relays
_: No extra relays
Q: Extra relays
1: Plastic housing

EFC Specification & Installation Instructions
16
Terminal Description
TFL Connection (TB5)
1- Common
2- 24 Vdc
3- Communication bus
If RJ45 version, simply
connect Ethernet cable.
BACnet Network (TB6)3
1- IN A+
2- IN B-
3- OUT A+
4- OUT B-
NOTE: Always avoid T-
taps
Analog Outputs, 0-10
Vdc (TB7)
1- Analog Output (AO1)
2- Common (AO1 & AO2)
3- Digital Input 2 (DI2)
Analog Inputs, Fix (TB8)
1- External temperature
sensor (AI1)
2- Common (AI1 & AI2)
3- Changeover sensor (AI2)
Analog Inputs,
Programmable (TB9)
1- Analog Input 3 (AI3)
2- Analog Input 4 (AI4)
3- Common
4- Analog Input 5 (AI5)
5- Analog Input 6 (AI6)
Digital Inputs,
Programmable (TB10)
1- Flow Switch (DI1)
2- Dirty Filter (DI2)
3- Common
4- Occ. Sensor (DI3)
5- Readable over BACnet
only (DI4)
Low Voltage Outputs
(TB11)*
1- Common
2- Common
3- 24 Vac
4- 24 Vac
Triac (TB1)
1- Triac Input, 24 Vac (JP1)
2- Triac Output 1 (TO1)
3- Common
4- Triac Output 2 (TO2)
5- Common
6- Triac Output 3 (TO3)
Triac Voltage Selection
(JP1)
If set on EXT, apply 24Vac
on pin 1 & 3 of TB1
Digital Outputs, 7A dry
contacts (TB2)3
1- Digital Output 3 (DO3)
2- Return DO3
3- Return DO4
4- Digital Output 4 (DO4)
Digital Outputs, 7A dry
contacts (TB3)3
1- Digital Output 1 (DO1)
2- Return DO1
3- Return DO2
4- Digital Output 2 (DO2)
Power In (TB4)1
1- Vac IN
2- Return
NOTE: Make sure to apply
corresponding voltage to
your model (24 Vac, 120
Vac or 240 Vac).
Fan Outputs, 7A dry
contacts (TB4)
3- Return
4- High speed
5- Medium speed
6- Low speed
Recycling at end of life
At end of life, please return the thermostat to your Neptronic®local distributor for recycling. If you need to find the nearest Neptronic®
authorized distributor, please consult www.neptronic.com.
ON
1 2 3 4 5 6 7 8
(1-7)
MAC Address
Selection
1 2 3 4
AI1
COM
AI2
1 2 3
*Max. 350 mA
1Power IN: EFCx10 = 24 Vac
EFCx11 = 120 Vac
EFCx12 = 240 Vac
Programmable Analog Input Signal Selection
(AI3 to AI6)
Off: AI= Temp. sensor (10kohms)
On: AI= Voltage (0-10Vdc)
DS1.1 linked to AI3
DS1.2 linked to AI4
DS1.3 linked to AI5
DS1.4 linked to AI6
DI1
DI2
COM
DI3
DI4
1 2 3 4 5
IN A+ 3
IN B- 3
COM 3
OUT A+ 3
OUT B- 3
1 2 3 4 5 1 2 3 4
24 Vac
24 Vac
AO1
COM
AO2
1 2 3
EFC
AI3
AI4
COM
AI5
AI6
1 2 3 4 5
TB9TB6 TB7 TB8
DS2 DS1
TB10 TB11
COM
COM
Fuse 10A.
F1
DO43
Ret. DO43
Ret. DO33
DO33
DO23
Ret. DO23
Ret. DO13
DO13
1 2 3 41 2 3 4
Fan Low
Fan Medium
Fan High
Fan Return
Return
Vac IN1
1 2 3 4 5 6
TB4 TB2TB3
COM
24 Vdc
COM.BUS
1 2 3
Analog Outputs
Analog Inputs
(Fix)
Analog Inputs
(Programmable)
Digital Inputs
Low Voltage
Outputs*
Network3
To TFL2
TB5
Digital
Outputs3
Fan
Outputs
Power In1
TO3
COM
TO2
COM
TO1
24 Vac
1 2 3 4 5 6
TB1
Triac Input
JP1
TRIAC
INT
EXT
Triac Outputs
23 wire connection shown
3Option, not present on all models
(8) 120 ohm termination
(Last node)