Technibel Climatisation CWX 3 Notice D'installation Et D'utilisation page 23

CWX
"2-pipe Cooling + electric heating"
Air temperature sensor signal (if used)
Note:
Position microswitch No. 8, located in the
remote control, to "ON".
CWX
"4-pipe"
Air temperature sensor signal (if used)
Note:
Position microswitch No. 8, located in the
remote control, to "ON".
E - Temperature sensor accessories
• Important:
- The sensor inputs (B1-M and B2-M) of the controls being connected to the 230V, use cable which satisfi es
the corresponding insulation requirements.
- Maximum connection length: 10 m with 1.5 mm
- To avoid electromagnetic disturbance, do not route sensor connection next to power cables.
• Temperature sensor (bare) for remote controls "RCC" - code 70250053
- Type CTN 3 kΩ at 25°C.
- IP 65 - cl. II.
- 2 possible uses :
- Change-over sensor (heating/cooling switch) for the units 2-pipe heating and cooling:
Use a retaining clip to secure this sensor to part of the piping representative of the water temperature in the
system.
Use thermoconductive paste and cover the sensor with insulation (not supplied) to ensure that the true temperature
is recorded.
- Air temperature sensor:
The thermostats operate according to the ambient air temperature measured internally or according to the temperature
indicated by the external sensor (switching takes place automatically as soon as the external sensor is connected).
Control connection as per the following diagrams.
Important: If an air recirculation sensor is installed in the unit, the fan must operate on a permanent basis
(mandatory valve)
• Air temperature sensor in box for remote controls "RCC" - code 70250054
- Type CTN 3 kΩ at 25°C.
- IP 30 - cl. II.
- Air temperature sensor:
The thermostats operate according to the ambient air temperature measured internally or according to the temperature
indicated by the external sensor (switching takes place automatically as soon as the external sensor is connected).
Control connection as per the following diagrams.
D1
Regime switch (Eco/Stand-by)
(if used)
Common
D1
Regime switch (Eco/Stand-by)
(if used)
Common
2
TERMINAL
70250052
UNIT
1
L
2
Q1
3
Q2
Q3 4
5
6
7
N 8 Terminal strip
X4 "VALVES"
9
B1 M B2
Terminal strip
X2 "CONTROL"
Shunt
M and B2
TERMINAL
70250052
UNIT
L 1
2
Q1
3
Q2
4
Q3
5
6
7
N 8
Terminal strip
X4 "VALVES"
9
B1 M B2
Terminal strip
X2 "CONTROL"
Shunt
M and B2
.
20
21
21
Electric heating
Cooling control
22
valve
23
20
21
21
Cooling
valve
22
Heating valve
23
F
GB
I
E
D
9