Technibel Climatisation CWX 3 Installation And Operating Instructions Manual page 22

F
"2-pipe Cooling + electric heating"
GB
70250076
SR
I
SR1
Auto
E
SR2
D
Position of the SR bridge located inside the controller:
- on SR1
- on SR2 (Auto) = Ventilation actuated with the valve.
C - Connections with automatic remote control - code 70250051 ("RCC 10")
• For CWX "2-pipe".
• Automatic switching of the operating
mode, by sensor or external contact.
Note: If the control is to operate only in
cooling mode, shunt terminals M and B2
(otherwise the unit will remain in heating
mode).
• Control by action on the 230V "On/Off"
valve.
• Permanent or slaved ventilation.
• Mode change possible (Eco or Stand-by)
by external contact.
• For all technical information concerning
the operation of this controller, consult
Technical Instructions No. 10 12 151.
D - Connections with automatic remote control - code 70250052 ("RCC 20")
• For CWX "2-pipe + electric heating" or "4-pipe".
• Automatic switching of the operating mode, by sensor or external contact.
• Control by action on the 230V "On/Off" valve.
• Permanent or slaved ventilation.
• Mode change possible (Eco or Stand-by) by external contact (not supplied).
• For all technical information concerning the operation of this controller, consult Technical Instructions No. 10 12 152.
"2-pipe Heating/Cooling + electric heating"
Note:
Electric heating is provided for to
operate as back-up for the water
exchanger in heating mode.
The electric heating can also be
activated in cooling mode ("mid-
season" heating). To do this, position
microswitch No. 8, located in the
remote control, to "ON".
8
CWX
TERMINAL
UNIT
L
1
20
2
Q1 21
3 21
Q2
Q3 4
5
Y2 6 22
7 23
Y1
8 Terminal strip
X4 "VALVES"
9
Terminal strip
X2 "CONTROL"
= Permanent ventilation.
CWX
70250076
SR
SR1
Auto
SR2
Cooling
valve
Position of the SR bridge located inside the controller:
- on SR1
- on SR2 (Auto) = Ventilation actuated with the valve.
CWX
"2-pipe"
70250051
D1
G N D
Regime switch
(Eco/Stand-by)
B1
(if used)
Air temperature
sensor signal
(if used)
Common
70250052
D1
Regime switch
(Eco/Stand-by)
B1 M B2
(if used)
Air temperature
sensor signal
(if used)
Common
CWX
"4-pipe"
TERMINAL
UNIT
L
1
20
2
Q1 21
3 21
Q2
Q3 4
5
6 22
Y2
7 23
Y1
8
Terminal strip
X4 "VALVES"
9
Terminal strip
X2 "CONTROL"
= Permanent ventilation.
TERMINAL
UNIT
L 1
2
Q1
3
Q2
4
Q3
5
6
1 1
7
N 8
Terminal strip
X4 "VALVES"
9
M B2
Terminal strip
X2 "CONTROL"
Change-over signal (heating/cooling
switching) from a 70250053 sensor or an
external contact
TERMINAL
UNIT
L 1 20
2 21
Q1
3 21
Q2
4
Q3
5
6 22
7 23
8 Terminal strip
N Bornier X4
X4 "VALVES"
"VALVES"
9
Terminal strip
Bornier X2
X2 "CONTROL"
"CONTROL"
Change-over signal (heating/cooling switching)
from a 70250053 sensor or an external
contact
Cooling
valve
20
21
21
Valve
22
23
Valve