Connecting An External Interlock - REMEHA Avanta Plus 35c Installation And Service Manual

Terminal
Block X9
1
2
3
4
5
Exist External interlock (volt free)
Remove existing link to use this function
links
6
7
8
Terminal
Block X7
1
Common Alarm
(Closes on alarm)
2
3
X9
LT.AL.W7H.000.033
X7
Boiler Run
(Closes on run)
LT.AL.W7H.000.034
X10
LT.AL.W7H.000.035
26
Remeha Avanta Plus

2.7.8 Connecting an external interlock

The Remeha Avanta Plus is supplied with an external interlock
function. A volt free switching device (i.e. external gas pres-
sure switch, safety thermostat for under floor heating) can be
connected to connectors 5 and 6 of the X9 terminal strip after
removing the existing link. When this circuit is open the boiler
will shut down with the display showing (code 9) and will
restart when the circuit is closed.
2.7.9 Connecting remote alarm and boiler run indication
As standard the boiler is supplied with 3 volt free connectors
on terminal X7. They can be used for an external gas valve,
remote alarm and boiler run indication.
• Common alarm signal connect to connectors 1 and 2 on
terminal X7. Contact closes on lock out. For this purpose
set parameter 24 from 0 to 1.
• Boiler run signal connect to connectors 1 and 3 on terminal
X7. Contact closes on heat demand. For this purpose set
parameter 24 from 0 to 2.
• Connect an external gas valve to connectors 1 and 3 on
terminal X7. Contact closes when the gas valve is activat-
ed. For this purpose set parameter 24 from 0 to 3.
2.7.10 Connecting a PC/PDA
Using the optional Recom interface package a PC or PDA can
be connected to the X10 "telephone connector". Using the
Recom PDA service software you can load, change and down-
load various boiler settings and readings. See the user instruc-
tions supplied with the software/hardware.