TLC3-FCR-M Engineering Manual
Doc: 70-00-0181, V3.0 Date: 20120424
© 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.
Setpoint limitations
Parameter
Description
Range
Default
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)
Fan control sequence
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…10.0K (20°F)
5.0°C (10°F)
FC 05
Switching Span Heating,
Setting this value to 0 limits fan to single fan speed in heating mode
0…10.0K (20°F)
1.5°C (3.0°F)
FC 06
Switching Span Cooling
Setting this value to 0 limits fan to single fan speed in cooling mode
0…10.0K (20°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…10.0K (20°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. Prevents the fan from
switching in too short intervals.
0…255 s
10s
FC 10
Switching delay min stopping time of fan speed. Prevents too short
restart times, once a fan speed has been switched off.
0…255 s
10s
FC 11
Control option:
0 = Cooling only
1 = Heating only
2 = 2-pipe system
3 = 4-pipe system
-M2: 0…2
-M4: 0…3
-M2: W00 = 2
-M4: W00 = 3
W01 = 0
W02 = 1
W03 = 2
W04 = 3
FC 12
Dead Zone Span:
The Dead Zone Span lies between the heating and the cooling setpoint.
The output is off while the temperature is within the dead zone span. A
negative dead zone is not possible.
0…100°C (200°F)
1.0°C (2°F)
FC 13
Heat/Cool Changeover Delay (if set to FC11 = 3):
A demand to switch between heating and cooling must persist for the
length of time set with this parameter before the controller switches.
Prevents activation of a sequence during a short-term change in
temperature in order to protect equipment (with control overshoot for
example)
0…255 min
5 min
PID control sequence
FC 14
P – band heating X
PH
0…10.0K (20°F)
2.0°C (4.0°F)
FC 15
P – band cooling X
PC
0…10.0K (20°F)
2.0° (4.0°F)
FC 16
K
IH
, Integral gain heating, in 0.1 steps, 0 disables ID part
0…25.5
0.0
FC 17
K
IC
, Integral gain cooling, in 0.1 steps
0…25.5
0.0
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.
Integral gain KI
The integral gain defines how fast the output increases in case the setpoint is not met by the room temperature. A low
value indicates a slow reaction, a high value a fast one. If the value is chosen too high, the controller will start to
swing. Depending on the room size and heating / cooling equipment used a value between 0.1 and 1.5 should be
sufficient. Below are suggested values:
Heating: K
IH
: 0.1-0.5
Cooling: K
IC
: 0.3-0.8
