Technibel MCW-B series Installation Instructions Manual page 17

• For manual control 70250076, check and modify as required the ventilation selection jumper connection SR depending on
the appliance (see below).
• For automatic control (70250051 and 70250052), check and modify as required the settings on DIP switches 1 to 5 (located
inside the control) depending on the application (refer to the indications below and the controller's technical manuals).
B - Connections with manual remote control - code 70250076
• For MCW-B and BE "2-pipe" or "2-pipe cooling + electric heating".
• Manual selection of the operating mode (heating or cooling).
• Control by action on the 230V "On/Off" valve and/or on ventilation.
MCW-B
"2-pipe"
Control on a valve
Power supply 230V / 1 / 50Hz
70250076
SR
L
N
SR1
Auto
Q1
SR2
Q2
Q3
Y2
Y1
Valve
Position of the SR bridge located inside
the controller:
- on SR1 =
Permanent ventilation.
- on SR2 (Auto) =
Ventilation actuated with the valve.
C - Connections with automatic remote control - code 70250051
• For MCW-B ("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 and/or on ventilation.
• 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.
MCW-B "2-pipe"
Control on a valve
70250051
L
N
Q1
Q2
D1 Q3
G N D
Regime switch
Y 1 1
(Eco/Stand-by)
B1 M B2
(if used)
Control on ventilation
Power supply 230V / 1 / 50Hz
70250076
SR
L
SR1
Auto
4
SR2
3
2
1
Position of the SR bridge located inside
the controller on SR2 (Auto).
Power supply 230V / 1 / 50Hz
L
N
4
3
2
1
Valve
Change-over signal
(heating/cooling switching)
from a 70250053 sensor
or an external contact
Common
Air temperature sensor signal
(if used) 70250054
("RAB 30")
MCW-B
"2-pipe"
L L
N
Q1 4
Q2 3
Q3
2
Y2
1
Y1
("RCC 10")
Control on ventilation
70250051
D1
G N D
Regime switch
(Eco/Stand-by)
B1
(if used)
Note: Position microswitch No. 1, located in the remote
control, to "ON"
MCW-BE
"2-pipe - Cooling + electric heating"
Control on a valve
Power supply 230V / 1 / 50Hz
70250076
SR
L L
N
SR1
Auto
Q1 4
SR2
3
Q2
Q3
2
Y2 1
Y1
Valve
Position of the SR bridge located inside
the controller:
- on SR1 =
Permanent ventilation.
- on SR2 (Auto) =
Ventilation actuated with the valve
or with the heating.
MCW-B "-pipe"
Power supply 230V / 1 / 50Hz
L L
N N
Q1 4
3
Q2
Q3
2
1
Y 1 1
M B2
Change-over signal
(heating/cooling switching)
from a 70250053 sensor
or an external contact
Common
Air temperature sensor signal
(if used) 70250054
F
GB
I
E
D
7