Field Wiring - CLIMAVENETA a-CHD U-2T Serie Manual De Instalación Y Funcionamiento

ELECTRICAL CONNECTION
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.
a-CHD 606÷2209 + ATW - MTW
TTL
ATW - MTW
NOTE:
CONNECT YVH ONLY WITH
4 PIPE UNIT
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
26
EN
TS1
WATER TEMP.
SENSOR
2
1
Cooling valve
7
Heating valve
6
Low speed
3
Med speed
4
Max speed
5
12
13
SA1
ONLY FOR ATW CONTROL
YVE
YVH
QM
PE N U
230V~50Hz
Installation

FIELD WIRING