Daikin Altherma EKRTCTRL2 - EKWHCTRL1 Connections

13
S
I
U
4.4
CP
L
N
MOTOR
+
A B
-
A A B B
-
LED
AB CD AB CD
H4 H2 AIR H4 H2 AIR
ON
MOTOR
LED
ON
N EV1 N EV2
COMM
GRID CP
COMM
GRID CP
N EV1 N EV2
EN
Connect the RS485 line of the wall-mounted remote control
to one or more (up to a maximum of 30) devices fitted with
electronics for remote control EKWHCTRL0 using a suitable
two-core cable for serial connections RS485 keeping the
power supply cables separate.
- Chase out the wall in order to minimise the length of
the leads;
- complete the line with the supplied 120 Ω heating
element;
- do not make "star" connections;
- The RS485 cable connection is polarised, respect the
"A" and "B" indications on every periphery connected
(for connecting, it is preferable to use a shielded two-
core cable with a minimum thickness of 0.35 mm
2
);
- connect the + and - power terminals on the wall
mounted terminal block, 5V DC, to one of the boards
EKWHCTRL0, respecting polarity.
EKWHCTRL1 Connections