TLC3-FCR-T Engineering Manual
Doc: 70-00-0200, V3.1 Date: 20160411
© Vector Controls GmbH, Switzerland
Page 8
Subject to alteration
Control configuration
Identifying the firmware version
The parameters and functionality of controller depend on its firmware revision. It is therefore important to use a
matching product version and parameter set. The firmware version is shown on the large LCD digits when pressing UP
and DOWN buttons for more than 3 seconds simultaneously.
Control Parameters (Access code: 241)
Warning! Only experts should change these settings! See user parameters for login procedure.
Parameter
Description
Range
Standard
FC 00
Minimum setpoint limit in Heating mode
-40…60°C (160°F)
16°C (61°F)
FC 01
Maximum setpoint limit in Heating mode
-40…60°C (160°F)
24°C (75°F)
FC 02
Minimum setpoint limit in Cooling mode
-40…60°C (160°F)
18°C (64°F)
FC 03
Maximum setpoint limit in Cooling mode
-40…60°C (160°F)
30°C (86°F)
Controls configuration
FC 04
Economy (unoccupied) Mode temperature shift:
The comfort (occupied) setpoint is shifted by the value
set with parameter. If heating is active the comfort
setpoint will be decreased, if cooling is active, the
setpoint will be increased. (Enable with UP06.)
0…10.0°C (20.0°F)
5.0°C (10°F)
FC 05
Switching Span Heating
0…10.0°C (20.0°F)
1.5°C (3.0°F)
FC 06
Switching Span Cooling
0…10.0°C (20.0°F)
1.0°C (2.0°F)
FC 07
Switching Hysteresis is the difference between switching
on and switching off. A small hysteresis will increase the
number of switching cycles and thus the wear on fan and
relays contacts.
0…10.0°C (20.0°F)
0.5°C (1°F)
FC 08
Mold Protection:
In mold protection, the fan keeps running independent of
temperature as long as the unit is switched on.
ON, OFF
OFF
FC 09
Switching delay min running time of fan speed
0…255 s
10s
FC 10
Switching delay min stopping time of fan speed
0…255 s
10s
FC 11
Control option:
0 = Cooling only
1 = Heating only
2 = 2-pipe system
0…2
-W1: = 0
-W2: = 1
Default: = 2
Control Configuration for PWM mode
FC 12
P – band heating X
PH
0-10.0°C (20.0°F)
2.0°C (4.0°F)
FC 13
P – band cooling X
PC
0-10.0°C (20.0°F)
2.0°C (4.0°F)
Proportional control
(P-band)
The proportional control function calculates the output based on the difference between setpoint and measured
value. The proportional band (P-band) defines the difference between setpoint and measured value which will
result in a 100% output. Setting the proportional band to 0 disables proportional control.
Output configuration
FC 14
PWM cycle time heating, 0 disables PWM mode
0…100 min
0
FC 15
PWM cycle time cooling, 0 disables PWM mode
0…100 min
0
Pulse With Modulation (PWM)
In PWM mode the digital output will be switched on/off once per cycle. The on and off times are calculated
according to the control sequence. It is not recommended to use cycle times below 10 minutes as the lifetime of
the relays will be shortened with frequent switching. For PWM applications requiring cycle times below 100
seconds we recommend using TLC3-FCR-2 with TRIAC outputs
