Wiring diagrams
1
2
3
4
5
6
7
8
9
L
N
HI
MED
LOW
ON
1
2
3
4
5
6
7
8
9
L
N
HI
MED
LOW
OFF
ON
1
2
3
4
5
6
7
8
9
L
N
HI
MED
LOW
Ventilation with heating
and cooling
Ventilation with heating and cooling
3-wire system of SPDT valves
Ventilation with heating and
cooling 2-wire system of SPST valves
3-speed fan
2-wire SPST valve
3-wire SPDT valve
OPERATION ALGORITHM
Switch on the temperature controller by pressing the power button (2). Press the fan speed selection button. The display will show
one of the characters (14 in Fig. 2) or AUTO. This means that the fan will rotate at HI (high), MED (medium), LOW or AUTO (automatic
mode) speed. If AUTO mode is selected, the fan speed will vary according to the difference between the actual room temperature and
the set temperature. If the room temperature is more than 3 degrees above the set temperature when cooling or more than 3 degrees
below the set temperature when heating, the fan will run at its highest speed. If the room temperature is 2-3 degrees higher than the
set temperature for cooling or 2-3 degrees lower than the set temperature for heating, the fan will run at medium speed. If the room
temperature is 0-1 degrees above the set temperature when cooling or 0-2 degrees below the set temperature when heating, the fan
will run at low speed.
Heating system operation.
Set the heating operation with the mode button (15 in Fig. 2). Press "+" to increase the control temperature value. If the room temperature is
lower than the set temperature, the heating system will start. Press "-" to decrease the control temperature value. If the room temperature
is higher than the set temperature, the heating system will stop.
Operation of the cooling system.
Set the cooling operation with the mode button (10 in Fig. 2). Press "-" to decrease the control temperature value. If the room temperature
is higher than the set temperature, the cooling system will start.
Press "+" to increase the control temperature value. If the room temperature is lower than the set temperature, the cooling system will
stop.
Operation in the night mode.
Press the button to switch to the night mode (5 in Fig. 1). The night mode symbol (9 in Fig.2) appears. This mode will be active for 8 hours
and the temperature controller will control heating or cooling according to the schedule below. Press the night mode button again, the
corresponding symbol will disappear, which means that the night mode is cancelled.
Features of the night mode operation
The temperature controller is set to the cooling mode: For a gradual change in temperature, one hour after setting the night mode, the set
temperature will automatically rise by 1 degree, and 2 hours later, the set temperature will rise by 2 degrees and will be held at this level
+1
+2
0
С
0,5 h 1 h 2 h 3 h 4 h 5 h 6 h 7 h 8 h
0
С
-3
-3
-3
0,5 h 1 h 2 h 3 h 4 h 5 h 6 h 7 h 8 h
0
С
0
С
0
С
Heating mode
Heating mode
temp.
temp.
temp.
setp.
The set temperature is automatically reduced
time
The set temperature increases
automatically
temp.
setp.
The timer is switched
off in the night mode
and goes back to the
last setpoint
The timer is
switched off in the
night mode and
goes back to the
last setpoint
time
6
RTS(D)-1-400
www.ventilation-system.com
