32
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Chapter 11 Electric connections accessories
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An external switch contact (e.g. switch or relay contact) can be connected to the Renovent Excellent Plus. This external switch contact
can be connected to connections no. 1 and no. 2 of 9-pole connector X15; this 9-pole connector is directly accessible at the rear of
the top without having to dismount the display cover (see also §11.1).
If a second input is required as external switch contact, if necessary connections no. 3 and no. 4 of the 9-pole connector X15, which
as standard are preprogrammed as 0-10 volt input, can be reprogrammed as second input switch contact. Changing parameter 21
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always takes priority over switch contact 2 (X15-3 & X15-4).
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When connections X15-3 and X15-4 are programmed as switch input 2, parameters 24, 25 and 26 can be used to set the various
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1) Bypass conditions opening valve: - outdoor temperature is higher than 10°C.
- temperature from atmosphere is at least lower than temperature from dwelling.
- temperature from dwelling is higher than the preset bypass temperature (parameter 5).
A = Renovent Excellent Plus
B = Plus version control board
C = Contact connected to switch input 1;
for instance a switch or a relay contact
D = Display Renovent Excellent Plus (text
“CN1” appears when contact C is
closed.)
Setting
Parameter 18
Function conditions
Situation supply fan extract fan
Setting para-
meters 19 and 20
Action supply or extract fan when closing
contact inputs X15-1 & X15-2
0 (factory
setting
Contact input 1
15-1 & X15-2 closed
No action possible because contact input 1 has not been activated yet (parameter 18 is still at 0)
1
Contact input 1
15-1 & X15-2 closed
Action dependent on setting
supply fan (parameter 19) and
extract fan (parameter 20)
0
1
2
3
4
5
6
7
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No fan activation
2
Contact input 1
15-1 & X15-2 closed
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-
tions for valve open
1
3
Contact input 1
15-1 & X15-2 closed
The bypass valve opens; auto-
matic bypass control in Reno-
vent Excellent is overruled;
action fans dependent on pa-
rameters 19 & 20.
4
Contact input 1
15-1 & X15-2 closed
The bedroom valves opens.
Bedroom valve 24 volt is con-
nected to X15-5 (24V GND)
X15-6 (24V +) and X15-9 (0-10
V control); action fans depend-
ent on parameters 19 & 20.
9-pole connector X15
Summary of Contents for Renovent Excellent 450
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