36
Fläkt Woods
8666 GB 2010.06
Specifications are subject to alteration without notice
Installation and maintenance instructions
Control equipment
Terminal block, preheater
Function
201
A +
202
B –
NOTE!
Check the jumper for communication in the control
panel when connecting via the junction box.
Preheater
The preheater connection unit is located in the external
control cabinet and is then connected by bus communica-
tion to the control panel or a junction box.
Connecting to a preheater in an external control panel:
Component
Terminal block, Fost coil Comment
Heating actuator
Y – M
Control signal to the valve actuator or electric air heater. 0-10V
G – G0
Power supply: 24 VAC*
Heating
NO – C
Operation of the circ. pump/electric air heater. (Potential free)
L – N
Power supply: 230VAC, max. 3 A
Pump group (3-fas)
L1-L2-L3
Power supply for 3-phase pump from contactor.
CP1/GT7
Alarm from the circulation pump or thermal overload protection
in the electric air heater. NO (changeable)
Frost protection sensor GT5
For heating coils.Type PT1000
*
NOTE!
Separate wires should be routed for these to avoid potential difference between the supply neutral and the measure-
ment/control neutral. See pages 28-29 for instructions related to connecting an electric preheater.
Configuration in the controller is carried out under:
MAIN INDEX CONFIGURATION
CONFIGURATION 1
To obtain the correct bus communication in the junction
box, see page 16 (pos. 7), the correct strapping is required
in the control panel. In the event of problems check that
the strapping under the power unit in the control panel
is on Extension IO.
a
a
KNX
+
KNX
-
MODBUS
+
MODBUS
-
EXTENSION I/O
+
EXTENSION I/O
-
EXTENSION I/O
- +
Fig. 37
Содержание eq Controls
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