Regin Regio Maxi, Manual

Page: 34 / 99

34
Part II
Installation
33 AI2 Analogue input 2.
For switching between heating and cooling on a two-pipe
system (Change-over). PT1000-sensor is connected between
terminals 33 and 31, AGnd. (FS)
Alternatives:
- External room temperature sensor (PT1000)
- Outdoor temperature sensor (PT1000)
- Condensation detector (0...10 V)
- CO
2
-transmitter (0...10 V)
- Humidity sensor (0...10 V)
Wiring for 0...10 V sensor:
Power supply to analogue sensors (humidity, CO
2
) is connected
so the sensor’s 24 V AC (G0) is connected to terminal 30 (G0)
and 24 V AC (G) to terminal 26 (GDO).
The sensor’s analogue output signal 0...10 V is connected to
terminal 33.
Wiring for PT1000-element
The sensor is connected between terminals 33 and 31, AGnd.
40 B EXOline-
connection,
not T-models
41 A
42 N The 0 V reference. This should be connected to the screen of the
communication cable, which in turn should be grounded at one
point only.
43 E
47 Net+ LON-connection
(only L-models)
48 Net-
49 EGnd
50 Gnd
51 CI Regin’s condensation detector, KG-A/1. The sensor is
connected between terminals 51 and 50, Gnd.
60 TCP/IP TCP/IP-connection,
only T-models
70 RU Room unit See the section
Wiring for RU-...
80 +C 24 V DC out common for DI1 and DI2.
81 DI1 Occupancy detector (FS), potential-free, NO. Open contact
corresponds to absence.
See also the section Occupancy detector in the chapter
Operating modes.
Wiring:
Potential-free contact is connected between terminals 81 and 80,
+C.
Alternatives:
- Window contact, potential-free, NO. Open contact corresponds
to closed window.
- Condensation detector, potential-free, NO. Open contact
corresponds to no condensation.
- Change-over sensor, potential-free, NO. Open contact
corresponds to heating demand.
See Regio tool
©
for
configuration of
NO/NC. The
factory setting is
normally open
(NO) contacts, but
the contacts can be
configured to NC.