VTS Medical Systems Ventus Compact VVS0400c, Quick Start Up Manual, Page: 11 / 25

9
Figure 10 - Connection of the antifreeze thermostat on the air side; Port: Heater al. G0, DI2
S
TRAP
-
ON TEMPERATURE SENSOR ON HEATING WATER RETURN
Strap-on temperature sensor (Figure 11) is an optional equipment of the water heater. While installing the strap-on
temperature sensor, mind, that the sensor must be stuck to the return water pipe from your water heater. Proper installation
is critical for the return water temperature monitoring and coil antifreeze protection of the coil.
DO NOT CONFUSE IT .
Figure 11 - installation and connection of the return water strap-on temperature sensor; T .heater port
W
ATER PUMP GROUP FOR WATER HEATER
NOTE! Put a special attention to the way the water pump group is connected to the water heater. In order to enable
proper regulation of the coil capacity
(“Quality Regulation”). Refer to
OMM VENTUS Compact floor RRG units with controls
EN or OMM VENTUS Compact suspended units with automatic EN.
The water pump is an integrated peripheral system supporting proper operations of the water heater. While connecting
it to your switchboard, mind, that 2 of below listed electric circuits must be put in to make the connection complete:
3-
WAY VALVE ACTUATOR
The 3-way valve actuator (part of the water pump group) is the main regulator of the water heater capacity. Connect it
to the switchboard as shown on the Figure 12 (
port “Heating”, terminals: G0, G, Y1
).