Low speed
Heating valve
Cooling valve
Med speed
Max speed
ONLY FOR ATW CONTROL
TS1
WATER TEMP.
SENSOR
LEGEND:
ATW Wall-mounted Environment Thermostat
MTW Wall-mounted
Environment
Thermostat
QM1 Thermomagnetic
switch
SA1 Multifunction
contact
TS1 Water
temperature
sensor
1
YVE Cooling
valve
YVH Heating
valve
H
N
L
V2
L
V1
M
2
1
7
6
3
4
5
QM1
U
N
PE
230V~50Hz
12
13
SA1
TTL
i-
C
H
D
706÷
2
209
ATW - MTW
N
YVE
YVH
8
9
FIELD WIRING
NOTE:
CONNECT YVH ONLY WITH
4 PIPE UNIT
27
EN
ELECTRICAL CONNECTION
Installation
i-CHD 706÷2209 + ATW - MTW
Single electrical connections: cassette unit with wall-mounted control
For electrical connections of CHD cassette fan-coil refer to following electrical diagrams. Do not refer to wiring dia-
grams present on instruction sheet of wall-mounted controls.
