Regin Corrigo C Series, Руководство пользователя, Страница: 14 / 56

15
Manual C
ORRIGO
C-
SERIES
2000.09
AI Analogue in
C
ORRIGO
has 8 analogue inputs, AI1...AI8
The function of some of the inputs varies depending on the choice of model and
configuration.
PT1000 type temperature sensors must be used on those inputs that are
configured as temperature inputs.
In certain cases an AI-input may be used as a digital input. It must then be
connected to a voltage-free, closing contact.
When active input signals are connected they must be 0...10 V DC.
AI-inputs must always use the signal neutral of the AI terminal block as reference.
(terminals 24, 27, 30 or 33).
AI1 and AI2
are used for connecting pressure switches/transmitters for monitoring and control
of the supply air and exhaust air fans
Note : These signals control vital functions in the C
ORRIGO
. They must always be
connected for correct control function.
C10 and C30
Connect the inputs to pressure switches with voltage-free closing contacts,
for example DTV, or to voltage-free closing contacts in the fan-motor
relays.
C20 and C40
Connect the inputs to pressure transmitters with a 0...10V DC output, for
example DMD or DTL. Wiring, see example in the margin.
The transmitter pressure range is set in the menu ”Settings”, see page 42.
AI3 och AI4
C10 and C20
AI3 Used for exhaust air temperature sensor, for example TG-K3/PT1000.
AI4 Used for extract air temperature sensor or for minimum limiting sensor in
the heat exhanger circuit when using a liquid connected heat exchanger.
(See page 28).
These functions are mutually exclusive, only one of them may be chosen.
C30 and C40
AI3 Used for room humidity transmitter, for example HRT.
AI4 Used for duct humidity sensor (limiting sensor), for example HDT3200.
The sensors must have an output signal of 0...10 V DC corresponding to
0...100% RH.
Since neither of the supply voltage terminals is connected to the AI signal
neutral it is necessary to make an external connection between the supply
voltage pole chosen as G0 and the AI signal neutral.
Note: If no limiting sensor is connected AI4 must be connected to signal
neutral.
AI5...AI8
AI5 Outdoor temperature sensor, for example TG-R6/PT1000.
AI6 Supply air temperature sensor, for example TG-K3/PT1000.
AI7 Room temperature sensor, for example TG-R5/PT1000.
AI8 Frost protection sensor, for example TG-A1/PT1000 when the unit is
configures for water heating.
Input for high temperature limiting switch when the controller is configured
for electric heating. Connect to voltage-free closing contact. (See page 27)