Connection - easyTherm highcomfort YP3.09997 Installation Instructions And Using

Connection

The diagrams provided are simplified for greater clarity. Protections and
other accessories required by standards are not illustrated. - Standard NF
C15-100 and good practice must be complied with. Connected or nearby
units must not generate excessive interference.
Use rigid 1.5 mm² cables or flexible 1.5 mm² cables or flexible
cables with 0.75 mm² cap.
Replace a 2-wire thermostat or connect a boiler with
thermostat input
• Turn the power off.
• Connect terminals 2 and 3 of the thermostat
to two terminals on the boiler thermostat.
• if required, remove the shunt
(electric cable) connecting the two
thermostat input terminals. If the boiler
has a clock input, do not mistake it for
the thermostat input.
24
R T C
1 2 3
Example of a boiler
terminal box
remove the
shunt
do not mistake for the
clock input (on some
wires to be connected
boiler models)
tothe thermostat
Replace a 3-cable thermostat
• Turn the power off and remove the old
thermostat.
• If this thermostat has a heat
anticipator, remove the
corresponding wire.
• If the existing thermostat is connected
to the earth (yellow/green cable) remove the
corresponding cable.
• Connect the 2 remaining cables
to terminals 2 and 3 of the thermostat.
Boiler without thermostat input
• If the boiler does not have a thermostat
input, you can directly control the
boiler circulator.
R T C
wire to be removed :
1 2 3
- anticipator
- earthed
(green/yellow wire)
old thermostat's
wire
R T C
1 2 3
L
N
circulator
25
EN